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Author SHA1 Message Date
Alexander Smorkalov
5199850039 Version update to 4.8.1. 2023-09-27 13:18:31 +03:00
Alexander Smorkalov
4ddd1181df Use proper branch for CI pipelines. 2023-09-27 12:22:37 +03:00
Alexander Smorkalov
f11c74d52a CI update for 4.8.x branch. 2023-09-27 10:48:19 +03:00
Vincent Rabaud
5d591b2a17 Merge pull request #24274 from vrabaud:webp_1.3.2
Merge pull request #24274 from vrabaud:webp_1.3.2
 
Bump libwebp to 1.3.2 #24274

This is version [c1ffd9a](c1ffd9ac75)
It is 1.3.2 with a few patches that were made right after to help compilation.
No need for patches on the OpenCV side!

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
2023-09-27 10:10:12 +03:00
Zihao Mu
31c803d15e Merge pull request #23952 from zihaomu:fix_depth_conv_5x5
DNN: optimize the speed of general Depth-wise #23952

Try to solve the issue: https://github.com/opencv/opencv/issues/23941

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2023-09-27 10:08:16 +03:00
2275 changed files with 118981 additions and 224133 deletions

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@@ -15,12 +15,12 @@ body:
Please provide the following system information to help us diagnose the bug. For example:
// example for c++ user
OpenCV version: 4.8.0
OpenCV version: 4.6.0
Operating System / Platform: Ubuntu 20.04
Compiler & compiler version: GCC 9.3.0
// example for python user
OpenCV python version: 4.8.0.74
OpenCV python version: 4.6.0.66
Operating System / Platform: Ubuntu 20.04
Python version: 3.9.6
validations:

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@@ -12,7 +12,7 @@ body:
attributes:
label: Describe the doc issue
description: >
Please provide a clear and concise description of what content in https://docs.opencv.org/ is an issue. Note that there are multiple active branches, such as 4.x and 5.x, so please specify the branch with the problem.
Please provide a clear and concise description of what content in https://docs.opencv.org/ is an issue. Note that there are multiple active branches, such as 3.4, 4.x and 5.x, so please specify the branch with the problem.
placeholder: |
A clear and concise description of what content in https://docs.opencv.org/ is an issue.

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@@ -2,8 +2,8 @@
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] I agree to contribute to the project under Apache 2 License.
- [ ] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable

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@@ -1,68 +1,47 @@
name: PR:4.x
name: PR:4.8.x
on:
pull_request:
branches:
- 4.x
- 4.8.x
jobs:
Ubuntu2004-ARM64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64.yaml@release_4.8.x
Ubuntu2004-ARM64-Debug:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64-Debug.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64-Debug.yaml@release_4.8.x
Ubuntu2004-x64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20.yaml@main
Ubuntu2004-x64-OpenVINO:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20-OpenVINO.yaml@main
Ubuntu2204-x64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U22.yaml@main
Ubuntu2404-x64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U24.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20.yaml@release_4.8.x
Ubuntu2004-x64-CUDA:
if: "${{ contains(github.event.pull_request.labels.*.name, 'category: dnn') }} || ${{ contains(github.event.pull_request.labels.*.name, 'category: dnn (onnx)') }}"
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20-Cuda.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20-Cuda.yaml@release_4.8.x
Windows10-x64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-W10.yaml@main
Windows10-x64-UWP:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-W10-UWP.yaml@main
Windows10-ARM64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-W10-ARM64.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-W10.yaml@release_4.8.x
Windows10-x64-Vulkan:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-W10-Vulkan.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-W10-Vulkan.yaml@release_4.8.x
macOS-ARM64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-macOS-ARM64.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-macOS-ARM64.yaml@release_4.8.x
macOS-x64:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-macOS-x86_64.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-macOS-x86_64.yaml@release_4.8.x
macOS-ARM64-Vulkan:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-macOS-ARM64-Vulkan.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-macOS-ARM64-Vulkan.yaml@release_4.8.x
iOS:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-iOS.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-iOS.yaml@release_4.8.x
Android-SDK:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-4.x-Android-SDK.yaml@main
Android-Test:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-Android-Test.yaml@main
Android:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-Android.yaml@release_4.8.x
TIM-VX:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-timvx-backend-tests-4.x.yml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-timvx-backend-tests-4.x.yml@release_4.8.x
docs:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-docs.yaml@main
Linux-RISC-V-Clang:
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-RISCV.yaml@main
uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-docs.yaml@release_4.8.x

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@@ -44,9 +44,5 @@ if(WITH_NEON)
target_compile_definitions(carotene_objs PRIVATE "-DWITH_NEON")
endif()
if(MINGW)
target_compile_definitions(carotene_objs PRIVATE "-D_USE_MATH_DEFINES=1")
endif()
# we add dummy file to fix XCode build
add_library(carotene STATIC ${OPENCV_3RDPARTY_EXCLUDE_FROM_ALL} "$<TARGET_OBJECTS:carotene_objs>" "${CAROTENE_SOURCE_DIR}/dummy.cpp")

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@@ -1286,6 +1286,7 @@ inline int TEGRA_SEPFILTERFREE(cvhalFilter2D *context)
#undef cv_hal_sepFilterFree
#define cv_hal_sepFilterFree TEGRA_SEPFILTERFREE
struct MorphCtx
{
int operation;
@@ -1856,126 +1857,6 @@ TegraCvtColor_Invoker(bgrx2hsvf, bgrx2hsv, src_data + static_cast<size_t>(range.
#define cv_hal_cvtTwoPlaneYUVtoBGREx TEGRA_CVT2PYUVTOBGR_EX
#endif
// The optimized branch was developed for old armv7 processors and leads to perf degradation on armv8
#if defined(__ARM_ARCH) && (__ARM_ARCH == 7)
inline CAROTENE_NS::BORDER_MODE borderCV2Carotene(int borderType)
{
switch(borderType)
{
case CV_HAL_BORDER_CONSTANT:
return CAROTENE_NS::BORDER_MODE_CONSTANT;
case CV_HAL_BORDER_REPLICATE:
return CAROTENE_NS::BORDER_MODE_REPLICATE;
case CV_HAL_BORDER_REFLECT:
return CAROTENE_NS::BORDER_MODE_REFLECT;
case CV_HAL_BORDER_WRAP:
return CAROTENE_NS::BORDER_MODE_WRAP;
case CV_HAL_BORDER_REFLECT_101:
return CAROTENE_NS::BORDER_MODE_REFLECT101;
}
return CAROTENE_NS::BORDER_MODE_UNDEFINED;
}
inline int TEGRA_GaussianBlurBinomial(const uchar* src_data, size_t src_step, uchar* dst_data, size_t dst_step,
int width, int height, int depth, int cn, size_t margin_left, size_t margin_top,
size_t margin_right, size_t margin_bottom, size_t ksize, int border_type)
{
CAROTENE_NS::Size2D sz(width, height);
CAROTENE_NS::BORDER_MODE border = borderCV2Carotene(border_type);
CAROTENE_NS::Margin mg(margin_left, margin_right, margin_top, margin_bottom);
if (ksize == 3)
{
if ((depth != CV_8U) || (cn != 1))
return CV_HAL_ERROR_NOT_IMPLEMENTED;
if (CAROTENE_NS::isGaussianBlur3x3MarginSupported(sz, border, mg))
{
CAROTENE_NS::gaussianBlur3x3Margin(sz, src_data, src_step, dst_data, dst_step,
border, 0, mg);
return CV_HAL_ERROR_OK;
}
}
else if (ksize == 5)
{
if (!CAROTENE_NS::isGaussianBlur5x5Supported(sz, cn, border))
return CV_HAL_ERROR_NOT_IMPLEMENTED;
if (depth == CV_8U)
{
CAROTENE_NS::gaussianBlur5x5(sz, cn, (uint8_t*)src_data, src_step,
(uint8_t*)dst_data, dst_step, border, 0, mg);
return CV_HAL_ERROR_OK;
}
else if (depth == CV_16U)
{
CAROTENE_NS::gaussianBlur5x5(sz, cn, (uint16_t*)src_data, src_step,
(uint16_t*)dst_data, dst_step, border, 0, mg);
return CV_HAL_ERROR_OK;
}
else if (depth == CV_16S)
{
CAROTENE_NS::gaussianBlur5x5(sz, cn, (int16_t*)src_data, src_step,
(int16_t*)dst_data, dst_step, border, 0, mg);
return CV_HAL_ERROR_OK;
}
}
return CV_HAL_ERROR_NOT_IMPLEMENTED;
}
#undef cv_hal_gaussianBlurBinomial
#define cv_hal_gaussianBlurBinomial TEGRA_GaussianBlurBinomial
#endif // __ARM_ARCH=7
#endif // OPENCV_IMGPROC_HAL_INTERFACE_H
// The optimized branch was developed for old armv7 processors
#if defined(__ARM_ARCH) && (__ARM_ARCH == 7)
inline int TEGRA_LKOpticalFlowLevel(const uchar *prev_data, size_t prev_data_step,
const short* prev_deriv_data, size_t prev_deriv_step,
const uchar* next_data, size_t next_step,
int width, int height, int cn,
const float *prev_points, float *next_points, size_t point_count,
uchar *status, float *err,
const int win_width, const int win_height,
int termination_count, double termination_epsilon,
bool get_min_eigen_vals,
float min_eigen_vals_threshold)
{
if (!CAROTENE_NS::isSupportedConfiguration())
return CV_HAL_ERROR_NOT_IMPLEMENTED;
CAROTENE_NS::pyrLKOptFlowLevel(CAROTENE_NS::Size2D(width, height), cn,
prev_data, prev_data_step, prev_deriv_data, prev_deriv_step,
next_data, next_step,
point_count, prev_points, next_points,
status, err, CAROTENE_NS::Size2D(win_width, win_height),
termination_count, termination_epsilon,
get_min_eigen_vals, min_eigen_vals_threshold);
return CV_HAL_ERROR_OK;
}
#undef cv_hal_LKOpticalFlowLevel
#define cv_hal_LKOpticalFlowLevel TEGRA_LKOpticalFlowLevel
#endif // __ARM_ARCH=7
#if 0 // OpenCV provides fater parallel implementation
inline int TEGRA_ScharrDeriv(const uchar* src_data, size_t src_step,
short* dst_data, size_t dst_step,
int width, int height, int cn)
{
if (!CAROTENE_NS::isSupportedConfiguration())
return CV_HAL_ERROR_NOT_IMPLEMENTED;
CAROTENE_NS::ScharrDeriv(CAROTENE_NS::Size2D(width, height), cn, src_data, src_step, dst_data, dst_step);
return CV_HAL_ERROR_OK;
}
#undef cv_hal_ScharrDeriv
#define cv_hal_ScharrDeriv TEGRA_ScharrDeriv
#endif
#endif

View File

@@ -2485,7 +2485,7 @@ namespace CAROTENE_NS {
u8 *status, f32 *err,
const Size2D &winSize,
u32 terminationCount, f64 terminationEpsilon,
bool getMinEigenVals,
u32 level, u32 maxLevel, bool useInitialFlow, bool getMinEigenVals,
f32 minEigThreshold);
}

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@@ -39,7 +39,6 @@
#include "common.hpp"
#include "vtransform.hpp"
#include "vround_helper.hpp"
namespace CAROTENE_NS {
@@ -107,7 +106,7 @@ template <> struct wAdd<s32>
{
valpha = vdupq_n_f32(_alpha);
vbeta = vdupq_n_f32(_beta);
vgamma = vdupq_n_f32(_gamma);
vgamma = vdupq_n_f32(_gamma + 0.5);
}
void operator() (const VecTraits<s32>::vec128 & v_src0,
@@ -119,7 +118,7 @@ template <> struct wAdd<s32>
vs1 = vmlaq_f32(vgamma, vs1, valpha);
vs1 = vmlaq_f32(vs1, vs2, vbeta);
v_dst = vroundq_s32_f32(vs1);
v_dst = vcvtq_s32_f32(vs1);
}
void operator() (const VecTraits<s32>::vec64 & v_src0,
@@ -131,7 +130,7 @@ template <> struct wAdd<s32>
vs1 = vmla_f32(vget_low(vgamma), vs1, vget_low(valpha));
vs1 = vmla_f32(vs1, vs2, vget_low(vbeta));
v_dst = vround_s32_f32(vs1);
v_dst = vcvt_s32_f32(vs1);
}
void operator() (const s32 * src0, const s32 * src1, s32 * dst) const
@@ -151,7 +150,7 @@ template <> struct wAdd<u32>
{
valpha = vdupq_n_f32(_alpha);
vbeta = vdupq_n_f32(_beta);
vgamma = vdupq_n_f32(_gamma);
vgamma = vdupq_n_f32(_gamma + 0.5);
}
void operator() (const VecTraits<u32>::vec128 & v_src0,
@@ -163,7 +162,7 @@ template <> struct wAdd<u32>
vs1 = vmlaq_f32(vgamma, vs1, valpha);
vs1 = vmlaq_f32(vs1, vs2, vbeta);
v_dst = vroundq_u32_f32(vs1);
v_dst = vcvtq_u32_f32(vs1);
}
void operator() (const VecTraits<u32>::vec64 & v_src0,
@@ -175,7 +174,7 @@ template <> struct wAdd<u32>
vs1 = vmla_f32(vget_low(vgamma), vs1, vget_low(valpha));
vs1 = vmla_f32(vs1, vs2, vget_low(vbeta));
v_dst = vround_u32_f32(vs1);
v_dst = vcvt_u32_f32(vs1);
}
void operator() (const u32 * src0, const u32 * src1, u32 * dst) const

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@@ -41,7 +41,6 @@
#include "common.hpp"
#include "saturate_cast.hpp"
#include "vround_helper.hpp"
namespace CAROTENE_NS {
@@ -199,6 +198,7 @@ void blur3x3(const Size2D &size, s32 cn,
//#define FLOAT_VARIANT_1_9
#ifdef FLOAT_VARIANT_1_9
float32x4_t v1_9 = vdupq_n_f32 (1.0/9.0);
float32x4_t v0_5 = vdupq_n_f32 (.5);
#else
const int16x8_t vScale = vmovq_n_s16(3640);
#endif
@@ -283,8 +283,8 @@ void blur3x3(const Size2D &size, s32 cn,
uint32x4_t tres2 = vmovl_u16(vget_high_u16(t0));
float32x4_t vf1 = vmulq_f32(v1_9, vcvtq_f32_u32(tres1));
float32x4_t vf2 = vmulq_f32(v1_9, vcvtq_f32_u32(tres2));
tres1 = internal::vroundq_u32_f32(vf1);
tres2 = internal::vroundq_u32_f32(vf2);
tres1 = vcvtq_u32_f32(vaddq_f32(vf1, v0_5));
tres2 = vcvtq_u32_f32(vaddq_f32(vf2, v0_5));
t0 = vcombine_u16(vmovn_u32(tres1),vmovn_u32(tres2));
vst1_u8(drow + x - 8, vmovn_u16(t0));
#else
@@ -445,8 +445,8 @@ void blur3x3(const Size2D &size, s32 cn,
uint32x4_t tres2 = vmovl_u16(vget_high_u16(t0));
float32x4_t vf1 = vmulq_f32(v1_9, vcvtq_f32_u32(tres1));
float32x4_t vf2 = vmulq_f32(v1_9, vcvtq_f32_u32(tres2));
tres1 = internal::vroundq_u32_f32(vf1);
tres2 = internal::vroundq_u32_f32(vf2);
tres1 = vcvtq_u32_f32(vaddq_f32(vf1, v0_5));
tres2 = vcvtq_u32_f32(vaddq_f32(vf2, v0_5));
t0 = vcombine_u16(vmovn_u32(tres1),vmovn_u32(tres2));
vst1_u8(drow + x - 8, vmovn_u16(t0));
#else
@@ -508,6 +508,7 @@ void blur5x5(const Size2D &size, s32 cn,
#define FLOAT_VARIANT_1_25
#ifdef FLOAT_VARIANT_1_25
float32x4_t v1_25 = vdupq_n_f32 (1.0f/25.0f);
float32x4_t v0_5 = vdupq_n_f32 (.5f);
#else
const int16x8_t vScale = vmovq_n_s16(1310);
#endif
@@ -751,8 +752,8 @@ void blur5x5(const Size2D &size, s32 cn,
uint32x4_t tres2 = vmovl_u16(vget_high_u16(t0));
float32x4_t vf1 = vmulq_f32(v1_25, vcvtq_f32_u32(tres1));
float32x4_t vf2 = vmulq_f32(v1_25, vcvtq_f32_u32(tres2));
tres1 = internal::vroundq_u32_f32(vf1);
tres2 = internal::vroundq_u32_f32(vf2);
tres1 = vcvtq_u32_f32(vaddq_f32(vf1, v0_5));
tres2 = vcvtq_u32_f32(vaddq_f32(vf2, v0_5));
t0 = vcombine_u16(vmovn_u32(tres1),vmovn_u32(tres2));
vst1_u8(drow + x - 8, vmovn_u16(t0));
#else

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@@ -40,7 +40,6 @@
#include "common.hpp"
#include "saturate_cast.hpp"
#include "vround_helper.hpp"
namespace CAROTENE_NS {
@@ -1167,10 +1166,17 @@ inline uint8x8x3_t convertToHSV(const uint8x8_t vR, const uint8x8_t vG, const ui
vSt3 = vmulq_f32(vHF1, vDivTab);
vSt4 = vmulq_f32(vHF2, vDivTab);
uint32x4_t vRes1 = internal::vroundq_u32_f32(vSt1);
uint32x4_t vRes2 = internal::vroundq_u32_f32(vSt2);
uint32x4_t vRes3 = internal::vroundq_u32_f32(vSt3);
uint32x4_t vRes4 = internal::vroundq_u32_f32(vSt4);
float32x4_t bias = vdupq_n_f32(0.5f);
vSt1 = vaddq_f32(vSt1, bias);
vSt2 = vaddq_f32(vSt2, bias);
vSt3 = vaddq_f32(vSt3, bias);
vSt4 = vaddq_f32(vSt4, bias);
uint32x4_t vRes1 = vcvtq_u32_f32(vSt1);
uint32x4_t vRes2 = vcvtq_u32_f32(vSt2);
uint32x4_t vRes3 = vcvtq_u32_f32(vSt3);
uint32x4_t vRes4 = vcvtq_u32_f32(vSt4);
int32x4_t vH_L = vmovl_s16(vget_low_s16(vDiff4));
int32x4_t vH_H = vmovl_s16(vget_high_s16(vDiff4));

View File

@@ -38,7 +38,6 @@
*/
#include "common.hpp"
#include "vround_helper.hpp"
namespace CAROTENE_NS {
@@ -186,7 +185,7 @@ CVTS_FUNC1(u8, 16,
#else
CVTS_FUNC1(u8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -210,10 +209,10 @@ CVTS_FUNC1(u8, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = vcvtq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = vcvtq_s32_f32(vline4_f32);
uint16x8_t vRes1_u16 = vcombine_u16(vqmovun_s32(vline1_s32), vqmovun_s32(vline2_s32));
uint16x8_t vRes2_u16 = vcombine_u16(vqmovun_s32(vline3_s32), vqmovun_s32(vline4_s32));
vst1q_u8(_dst + i, vcombine_u8(vqmovn_u16(vRes1_u16), vqmovn_u16(vRes2_u16)));
@@ -271,7 +270,7 @@ CVTS_FUNC(u8, s8, 16,
#else
CVTS_FUNC(u8, s8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -295,10 +294,10 @@ CVTS_FUNC(u8, s8, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = vcvtq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = vcvtq_s32_f32(vline4_f32);
int16x8_t vRes1_u16 = vcombine_s16(vqmovn_s32(vline1_s32), vqmovn_s32(vline2_s32));
int16x8_t vRes2_u16 = vcombine_s16(vqmovn_s32(vline3_s32), vqmovn_s32(vline4_s32));
vst1q_s8(_dst + i, vcombine_s8(vqmovn_s16(vRes1_u16), vqmovn_s16(vRes2_u16)));
@@ -356,7 +355,7 @@ CVTS_FUNC(u8, u16, 16,
#else
CVTS_FUNC(u8, u16, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -380,10 +379,10 @@ CVTS_FUNC(u8, u16, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = vcvtq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = vcvtq_s32_f32(vline4_f32);
vst1q_u16(_dst + i + 0, vcombine_u16(vqmovun_s32(vline1_s32), vqmovun_s32(vline2_s32)));
vst1q_u16(_dst + i + 8, vcombine_u16(vqmovun_s32(vline3_s32), vqmovun_s32(vline4_s32)));
}
@@ -440,7 +439,7 @@ CVTS_FUNC(u8, s16, 16,
#else
CVTS_FUNC(u8, s16, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -464,10 +463,10 @@ CVTS_FUNC(u8, s16, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = vcvtq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = vcvtq_s32_f32(vline4_f32);
vst1q_s16(_dst + i + 0, vcombine_s16(vqmovn_s32(vline1_s32), vqmovn_s32(vline2_s32)));
vst1q_s16(_dst + i + 8, vcombine_s16(vqmovn_s32(vline3_s32), vqmovn_s32(vline4_s32)));
}
@@ -527,7 +526,7 @@ CVTS_FUNC(u8, s32, 16,
#else
CVTS_FUNC(u8, s32, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -551,10 +550,10 @@ CVTS_FUNC(u8, s32, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int32x4_t vline3_s32 = vcvtq_s32_f32(vline3_f32);
int32x4_t vline4_s32 = vcvtq_s32_f32(vline4_f32);
vst1q_s32(_dst + i + 0, vline1_s32);
vst1q_s32(_dst + i + 4, vline2_s32);
vst1q_s32(_dst + i + 8, vline3_s32);
@@ -694,7 +693,7 @@ CVTS_FUNC(s8, u8, 16,
#else
CVTS_FUNC(s8, u8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -718,10 +717,10 @@ CVTS_FUNC(s8, u8, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vline3_s32 = vcvtq_s32_f32(vline3_f32);
vline4_s32 = vcvtq_s32_f32(vline4_f32);
uint16x8_t vRes1_u16 = vcombine_u16(vqmovun_s32(vline1_s32), vqmovun_s32(vline2_s32));
uint16x8_t vRes2_u16 = vcombine_u16(vqmovun_s32(vline3_s32), vqmovun_s32(vline4_s32));
vst1q_u8(_dst + i, vcombine_u8(vqmovn_u16(vRes1_u16), vqmovn_u16(vRes2_u16)));
@@ -779,7 +778,7 @@ CVTS_FUNC1(s8, 16,
#else
CVTS_FUNC1(s8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -803,10 +802,10 @@ CVTS_FUNC1(s8, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vline3_s32 = vcvtq_s32_f32(vline3_f32);
vline4_s32 = vcvtq_s32_f32(vline4_f32);
int16x8_t vRes1_s16 = vcombine_s16(vqmovn_s32(vline1_s32), vqmovn_s32(vline2_s32));
int16x8_t vRes2_s16 = vcombine_s16(vqmovn_s32(vline3_s32), vqmovn_s32(vline4_s32));
vst1q_s8(_dst + i, vcombine_s8(vqmovn_s16(vRes1_s16), vqmovn_s16(vRes2_s16)));
@@ -864,7 +863,7 @@ CVTS_FUNC(s8, u16, 16,
#else
CVTS_FUNC(s8, u16, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -888,10 +887,10 @@ CVTS_FUNC(s8, u16, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vline3_s32 = vcvtq_s32_f32(vline3_f32);
vline4_s32 = vcvtq_s32_f32(vline4_f32);
uint16x8_t vRes1_u16 = vcombine_u16(vqmovun_s32(vline1_s32), vqmovun_s32(vline2_s32));
uint16x8_t vRes2_u16 = vcombine_u16(vqmovun_s32(vline3_s32), vqmovun_s32(vline4_s32));
vst1q_u16(_dst + i + 0, vRes1_u16);
@@ -950,7 +949,7 @@ CVTS_FUNC(s8, s16, 16,
#else
CVTS_FUNC(s8, s16, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -974,10 +973,10 @@ CVTS_FUNC(s8, s16, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vline3_s32 = vcvtq_s32_f32(vline3_f32);
vline4_s32 = vcvtq_s32_f32(vline4_f32);
int16x8_t vRes1_s16 = vcombine_s16(vqmovn_s32(vline1_s32), vqmovn_s32(vline2_s32));
int16x8_t vRes2_s16 = vcombine_s16(vqmovn_s32(vline3_s32), vqmovn_s32(vline4_s32));
vst1q_s16(_dst + i + 0, vRes1_s16);
@@ -1039,7 +1038,7 @@ CVTS_FUNC(s8, s32, 16,
#else
CVTS_FUNC(s8, s32, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 16)
{
@@ -1063,10 +1062,10 @@ CVTS_FUNC(s8, s32, 16,
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline3_f32 = vaddq_f32(vline3_f32, vshift);
vline4_f32 = vaddq_f32(vline4_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline3_s32 = internal::vroundq_s32_f32(vline3_f32);
vline4_s32 = internal::vroundq_s32_f32(vline4_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vline3_s32 = vcvtq_s32_f32(vline3_f32);
vline4_s32 = vcvtq_s32_f32(vline4_f32);
vst1q_s32(_dst + i + 0, vline1_s32);
vst1q_s32(_dst + i + 4, vline2_s32);
vst1q_s32(_dst + i + 8, vline3_s32);
@@ -1191,7 +1190,7 @@ CVTS_FUNC(u16, u8, 16,
#else
CVTS_FUNC(u16, u8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1205,8 +1204,8 @@ CVTS_FUNC(u16, u8, 16,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
uint8x8_t vRes = vqmovun_s16(vcombine_s16(vRes1, vRes2));
@@ -1250,7 +1249,7 @@ CVTS_FUNC(u16, s8, 16,
#else
CVTS_FUNC(u16, s8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1264,8 +1263,8 @@ CVTS_FUNC(u16, s8, 16,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
int8x8_t vRes = vqmovn_s16(vcombine_s16(vRes1, vRes2));
@@ -1308,7 +1307,7 @@ CVTS_FUNC1(u16, 16,
#else
CVTS_FUNC1(u16, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1322,8 +1321,8 @@ CVTS_FUNC1(u16, 16,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
uint16x4_t vRes1 = vqmovun_s32(vline1_s32);
uint16x4_t vRes2 = vqmovun_s32(vline2_s32);
vst1q_u16(_dst + i, vcombine_u16(vRes1, vRes2));
@@ -1365,7 +1364,7 @@ CVTS_FUNC(u16, s16, 8,
#else
CVTS_FUNC(u16, s16, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1379,8 +1378,8 @@ CVTS_FUNC(u16, s16, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
vst1q_s16(_dst + i, vcombine_s16(vRes1, vRes2));
@@ -1422,7 +1421,7 @@ CVTS_FUNC(u16, s32, 8,
#else
CVTS_FUNC(u16, s32, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1436,8 +1435,8 @@ CVTS_FUNC(u16, s32, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
vst1q_s32(_dst + i + 0, vline1_s32);
vst1q_s32(_dst + i + 4, vline2_s32);
}
@@ -1531,7 +1530,7 @@ CVTS_FUNC(s16, u8, 16,
#else
CVTS_FUNC(s16, u8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1545,8 +1544,8 @@ CVTS_FUNC(s16, u8, 16,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
uint8x8_t vRes = vqmovun_s16(vcombine_s16(vRes1, vRes2));
@@ -1590,7 +1589,7 @@ CVTS_FUNC(s16, s8, 16,
#else
CVTS_FUNC(s16, s8, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1604,8 +1603,8 @@ CVTS_FUNC(s16, s8, 16,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
int8x8_t vRes = vqmovn_s16(vcombine_s16(vRes1, vRes2));
@@ -1648,7 +1647,7 @@ CVTS_FUNC(s16, u16, 8,
#else
CVTS_FUNC(s16, u16, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1662,8 +1661,8 @@ CVTS_FUNC(s16, u16, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
uint16x4_t vRes1 = vqmovun_s32(vline1_s32);
uint16x4_t vRes2 = vqmovun_s32(vline2_s32);
vst1q_u16(_dst + i, vcombine_u16(vRes1, vRes2));
@@ -1705,7 +1704,7 @@ CVTS_FUNC1(s16, 16,
#else
CVTS_FUNC1(s16, 16,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1719,8 +1718,8 @@ CVTS_FUNC1(s16, 16,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
vst1q_s16(_dst + i, vcombine_s16(vRes1, vRes2));
@@ -1762,7 +1761,7 @@ CVTS_FUNC(s16, s32, 8,
#else
CVTS_FUNC(s16, s32, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1776,8 +1775,8 @@ CVTS_FUNC(s16, s32, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vst1q_s32(_dst + i + 0, vline1_s32);
vst1q_s32(_dst + i + 4, vline2_s32);
}
@@ -1871,7 +1870,7 @@ CVTS_FUNC(s32, u8, 8,
#else
CVTS_FUNC(s32, u8, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1884,8 +1883,8 @@ CVTS_FUNC(s32, u8, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
uint16x4_t vRes1 = vqmovun_s32(vline1_s32);
uint16x4_t vRes2 = vqmovun_s32(vline2_s32);
uint8x8_t vRes = vqmovn_u16(vcombine_u16(vRes1, vRes2));
@@ -1929,7 +1928,7 @@ CVTS_FUNC(s32, s8, 8,
#else
CVTS_FUNC(s32, s8, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1942,8 +1941,8 @@ CVTS_FUNC(s32, s8, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
int8x8_t vRes = vqmovn_s16(vcombine_s16(vRes1, vRes2));
@@ -1986,7 +1985,7 @@ CVTS_FUNC(s32, u16, 8,
#else
CVTS_FUNC(s32, u16, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -1999,8 +1998,8 @@ CVTS_FUNC(s32, u16, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
uint16x4_t vRes1 = vqmovun_s32(vline1_s32);
uint16x4_t vRes2 = vqmovun_s32(vline2_s32);
vst1q_u16(_dst + i, vcombine_u16(vRes1, vRes2));
@@ -2042,7 +2041,7 @@ CVTS_FUNC(s32, s16, 8,
#else
CVTS_FUNC(s32, s16, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -2055,8 +2054,8 @@ CVTS_FUNC(s32, s16, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
vst1q_s16(_dst + i, vcombine_s16(vRes1, vRes2));
@@ -2098,7 +2097,7 @@ CVTS_FUNC1(s32, 8,
#else
CVTS_FUNC1(s32, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -2111,8 +2110,8 @@ CVTS_FUNC1(s32, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
vline1_s32 = vcvtq_s32_f32(vline1_f32);
vline2_s32 = vcvtq_s32_f32(vline2_f32);
vst1q_s32(_dst + i + 0, vline1_s32);
vst1q_s32(_dst + i + 4, vline2_s32);
}
@@ -2273,7 +2272,7 @@ CVTS_FUNC(f32, s8, 8,
#else
CVTS_FUNC(f32, s8, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -2284,8 +2283,8 @@ CVTS_FUNC(f32, s8, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
int8x8_t vRes = vqmovn_s16(vcombine_s16(vRes1, vRes2));
@@ -2326,7 +2325,7 @@ CVTS_FUNC(f32, u16, 8,
#else
CVTS_FUNC(f32, u16, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -2337,8 +2336,8 @@ CVTS_FUNC(f32, u16, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
uint32x4_t vline1_u32 = internal::vroundq_u32_f32(vline1_f32);
uint32x4_t vline2_u32 = internal::vroundq_u32_f32(vline2_f32);
uint32x4_t vline1_u32 = vcvtq_u32_f32(vline1_f32);
uint32x4_t vline2_u32 = vcvtq_u32_f32(vline2_f32);
uint16x4_t vRes1 = vqmovn_u32(vline1_u32);
uint16x4_t vRes2 = vqmovn_u32(vline2_u32);
vst1q_u16(_dst + i, vcombine_u16(vRes1, vRes2));
@@ -2378,7 +2377,7 @@ CVTS_FUNC(f32, s16, 8,
#else
CVTS_FUNC(f32, s16, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -2389,8 +2388,8 @@ CVTS_FUNC(f32, s16, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
int16x4_t vRes1 = vqmovn_s32(vline1_s32);
int16x4_t vRes2 = vqmovn_s32(vline2_s32);
vst1q_s16(_dst + i, vcombine_s16(vRes1, vRes2));
@@ -2430,7 +2429,7 @@ CVTS_FUNC(f32, s32, 8,
#else
CVTS_FUNC(f32, s32, 8,
float32x4_t vscale = vdupq_n_f32((f32)alpha);
float32x4_t vshift = vdupq_n_f32((f32)beta);,
float32x4_t vshift = vdupq_n_f32((f32)beta + 0.5f);,
{
for (size_t i = 0; i < w; i += 8)
{
@@ -2441,8 +2440,8 @@ CVTS_FUNC(f32, s32, 8,
vline2_f32 = vmulq_f32(vline2_f32, vscale);
vline1_f32 = vaddq_f32(vline1_f32, vshift);
vline2_f32 = vaddq_f32(vline2_f32, vshift);
int32x4_t vline1_s32 = internal::vroundq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = internal::vroundq_s32_f32(vline2_f32);
int32x4_t vline1_s32 = vcvtq_s32_f32(vline1_f32);
int32x4_t vline2_s32 = vcvtq_s32_f32(vline2_f32);
vst1q_s32(_dst + i + 0, vline1_s32);
vst1q_s32(_dst + i + 4, vline2_s32);
}

View File

@@ -39,7 +39,6 @@
#include "common.hpp"
#include "vtransform.hpp"
#include "vround_helper.hpp"
#include <cstring>
#include <cfloat>
@@ -52,6 +51,13 @@ namespace {
#ifdef CAROTENE_NEON
inline float32x4_t vroundq(const float32x4_t& v)
{
const int32x4_t signMask = vdupq_n_s32(1 << 31), half = vreinterpretq_s32_f32(vdupq_n_f32(0.5f));
float32x4_t v_addition = vreinterpretq_f32_s32(vorrq_s32(half, vandq_s32(signMask, vreinterpretq_s32_f32(v))));
return vaddq_f32(v, v_addition);
}
template <typename T>
inline T divSaturateQ(const T &v1, const T &v2, const float scale)
{
@@ -63,10 +69,17 @@ inline T divSaturateQ(const T &v1, const T &v2, const float scale)
}
template <>
inline int32x4_t divSaturateQ<int32x4_t>(const int32x4_t &v1, const int32x4_t &v2, const float scale)
{ return internal::vroundq_s32_f32(vmulq_f32(vmulq_n_f32(vcvtq_f32_s32(v1), scale), internal::vrecpq_f32(vcvtq_f32_s32(v2)))); }
{ return vcvtq_s32_f32(vroundq(vmulq_f32(vmulq_n_f32(vcvtq_f32_s32(v1), scale), internal::vrecpq_f32(vcvtq_f32_s32(v2))))); }
template <>
inline uint32x4_t divSaturateQ<uint32x4_t>(const uint32x4_t &v1, const uint32x4_t &v2, const float scale)
{ return internal::vroundq_u32_f32(vmulq_f32(vmulq_n_f32(vcvtq_f32_u32(v1), scale), internal::vrecpq_f32(vcvtq_f32_u32(v2)))); }
{ return vcvtq_u32_f32(vroundq(vmulq_f32(vmulq_n_f32(vcvtq_f32_u32(v1), scale), internal::vrecpq_f32(vcvtq_f32_u32(v2))))); }
inline float32x2_t vround(const float32x2_t& v)
{
const int32x2_t signMask = vdup_n_s32(1 << 31), half = vreinterpret_s32_f32(vdup_n_f32(0.5f));
float32x2_t v_addition = vreinterpret_f32_s32(vorr_s32(half, vand_s32(signMask, vreinterpret_s32_f32(v))));
return vadd_f32(v, v_addition);
}
template <typename T>
inline T divSaturate(const T &v1, const T &v2, const float scale)
@@ -75,10 +88,10 @@ inline T divSaturate(const T &v1, const T &v2, const float scale)
}
template <>
inline int32x2_t divSaturate<int32x2_t>(const int32x2_t &v1, const int32x2_t &v2, const float scale)
{ return internal::vround_s32_f32(vmul_f32(vmul_n_f32(vcvt_f32_s32(v1), scale), internal::vrecp_f32(vcvt_f32_s32(v2)))); }
{ return vcvt_s32_f32(vround(vmul_f32(vmul_n_f32(vcvt_f32_s32(v1), scale), internal::vrecp_f32(vcvt_f32_s32(v2))))); }
template <>
inline uint32x2_t divSaturate<uint32x2_t>(const uint32x2_t &v1, const uint32x2_t &v2, const float scale)
{ return internal::vround_u32_f32(vmul_f32(vmul_n_f32(vcvt_f32_u32(v1), scale), internal::vrecp_f32(vcvt_f32_u32(v2)))); }
{ return vcvt_u32_f32(vround(vmul_f32(vmul_n_f32(vcvt_f32_u32(v1), scale), internal::vrecp_f32(vcvt_f32_u32(v2))))); }
template <typename T>
@@ -144,8 +157,8 @@ void div(const Size2D &size,
if (scale == 0.0f ||
(std::numeric_limits<T>::is_integer &&
(scale * static_cast<float>(std::numeric_limits<T>::max())) < 1.0f &&
(scale * static_cast<float>(std::numeric_limits<T>::max())) > -1.0f))
(scale * std::numeric_limits<T>::max()) < 1.0f &&
(scale * std::numeric_limits<T>::max()) > -1.0f))
{
for (size_t y = 0; y < size.height; ++y)
{

View File

@@ -58,7 +58,7 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
u8 *status, f32 *err,
const Size2D &winSize,
u32 terminationCount, f64 terminationEpsilon,
bool getMinEigenVals,
u32 level, u32 maxLevel, bool useInitialFlow, bool getMinEigenVals,
f32 minEigThreshold)
{
internal::assertSupportedConfiguration();
@@ -74,11 +74,32 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
for( u32 ptidx = 0; ptidx < ptCount; ptidx++ )
{
f32 levscale = (1./(1 << level));
u32 ptref = ptidx << 1;
f32 prevPtX = prevPts[ptref+0];
f32 prevPtY = prevPts[ptref+1];
f32 nextPtX = nextPts[ptref+0];
f32 nextPtY = nextPts[ptref+1];
f32 prevPtX = prevPts[ptref+0]*levscale;
f32 prevPtY = prevPts[ptref+1]*levscale;
f32 nextPtX;
f32 nextPtY;
if( level == maxLevel )
{
if( useInitialFlow )
{
nextPtX = nextPts[ptref+0]*levscale;
nextPtY = nextPts[ptref+1]*levscale;
}
else
{
nextPtX = prevPtX;
nextPtY = prevPtY;
}
}
else
{
nextPtX = nextPts[ptref+0]*2.f;
nextPtY = nextPts[ptref+1]*2.f;
}
nextPts[ptref+0] = nextPtX;
nextPts[ptref+1] = nextPtY;
s32 iprevPtX, iprevPtY;
s32 inextPtX, inextPtY;
@@ -90,10 +111,13 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
if( iprevPtX < -(s32)winSize.width || iprevPtX >= (s32)size.width ||
iprevPtY < -(s32)winSize.height || iprevPtY >= (s32)size.height )
{
if( status )
status[ptidx] = false;
if( err )
err[ptidx] = 0;
if( level == 0 )
{
if( status )
status[ptidx] = false;
if( err )
err[ptidx] = 0;
}
continue;
}
@@ -309,7 +333,7 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
if( minEig < minEigThreshold || D < FLT_EPSILON )
{
if( status )
if( level == 0 && status )
status[ptidx] = false;
continue;
}
@@ -329,7 +353,7 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
if( inextPtX < -(s32)winSize.width || inextPtX >= (s32)size.width ||
inextPtY < -(s32)winSize.height || inextPtY >= (s32)size.height )
{
if( status )
if( level == 0 && status )
status[ptidx] = false;
break;
}
@@ -445,7 +469,8 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
prevDeltaX = deltaX;
prevDeltaY = deltaY;
}
if( status && status[ptidx] && err && !getMinEigenVals )
if( status && status[ptidx] && err && level == 0 && !getMinEigenVals )
{
f32 nextPointX = nextPts[ptref+0] - halfWinX;
f32 nextPointY = nextPts[ptref+1] - halfWinY;
@@ -501,6 +526,9 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
(void)winSize;
(void)terminationCount;
(void)terminationEpsilon;
(void)level;
(void)maxLevel;
(void)useInitialFlow;
(void)getMinEigenVals;
(void)minEigThreshold;
(void)ptCount;
@@ -508,3 +536,4 @@ void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
}
}//CAROTENE_NS

View File

@@ -41,7 +41,6 @@
#include <cmath>
#include "common.hpp"
#include "vround_helper.hpp"
namespace CAROTENE_NS {
@@ -122,6 +121,8 @@ void phase(const Size2D &size,
size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
float32x4_t v_05 = vdupq_n_f32(0.5f);
for (size_t i = 0; i < size.height; ++i)
{
const s16 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
@@ -148,8 +149,8 @@ void phase(const Size2D &size,
float32x4_t v_dst32f1;
FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f1)
uint16x8_t v_dst16s0 = vcombine_u16(vmovn_u32(internal::vroundq_u32_f32(v_dst32f0)),
vmovn_u32(internal::vroundq_u32_f32(v_dst32f1)));
uint16x8_t v_dst16s0 = vcombine_u16(vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f0, v_05))),
vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f1, v_05))));
// 1
v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src01)));
@@ -160,8 +161,8 @@ void phase(const Size2D &size,
v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src11)));
FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f1)
uint16x8_t v_dst16s1 = vcombine_u16(vmovn_u32(internal::vroundq_u32_f32(v_dst32f0)),
vmovn_u32(internal::vroundq_u32_f32(v_dst32f1)));
uint16x8_t v_dst16s1 = vcombine_u16(vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f0, v_05))),
vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f1, v_05))));
vst1q_u8(dst + j, vcombine_u8(vmovn_u16(v_dst16s0),
vmovn_u16(v_dst16s1)));
@@ -181,8 +182,8 @@ void phase(const Size2D &size,
float32x4_t v_dst32f1;
FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f1)
uint16x8_t v_dst = vcombine_u16(vmovn_u32(internal::vroundq_u32_f32(v_dst32f0)),
vmovn_u32(internal::vroundq_u32_f32(v_dst32f1)));
uint16x8_t v_dst = vcombine_u16(vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f0, v_05))),
vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f1, v_05))));
vst1_u8(dst + j, vmovn_u16(v_dst));
}

View File

@@ -1,102 +0,0 @@
/*
* By downloading, copying, installing or using the software you agree to this license.
* If you do not agree to this license, do not download, install,
* copy or use the software.
*
*
* License Agreement
* For Open Source Computer Vision Library
* (3-clause BSD License)
*
* Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
* Third party copyrights are property of their respective owners.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the names of the copyright holders nor the names of the contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* This software is provided by the copyright holders and contributors "as is" and
* any express or implied warranties, including, but not limited to, the implied
* warranties of merchantability and fitness for a particular purpose are disclaimed.
* In no event shall copyright holders or contributors be liable for any direct,
* indirect, incidental, special, exemplary, or consequential damages
* (including, but not limited to, procurement of substitute goods or services;
* loss of use, data, or profits; or business interruption) however caused
* and on any theory of liability, whether in contract, strict liability,
* or tort (including negligence or otherwise) arising in any way out of
* the use of this software, even if advised of the possibility of such damage.
*/
#ifndef CAROTENE_SRC_VROUND_HELPER_HPP
#define CAROTENE_SRC_VROUND_HELPER_HPP
#include "common.hpp"
#include "vtransform.hpp"
#ifdef CAROTENE_NEON
/**
* This helper header is for rounding from float32xN to uin32xN or int32xN to nearest, ties to even.
* See https://en.wikipedia.org/wiki/Rounding#Rounding_half_to_even
*/
// See https://github.com/opencv/opencv/pull/24271#issuecomment-1867318007
#define CAROTENE_ROUND_DELTA (12582912.0f)
namespace CAROTENE_NS { namespace internal {
inline uint32x4_t vroundq_u32_f32(const float32x4_t val)
{
#if defined(__ARM_ARCH) && (__ARM_ARCH >= 8)
return vcvtnq_u32_f32(val);
#else
const float32x4_t delta = vdupq_n_f32(CAROTENE_ROUND_DELTA);
return vcvtq_u32_f32(vsubq_f32(vaddq_f32(val, delta), delta));
#endif
}
inline uint32x2_t vround_u32_f32(const float32x2_t val)
{
#if defined(__ARM_ARCH) && (__ARM_ARCH >= 8)
return vcvtn_u32_f32(val);
#else
const float32x2_t delta = vdup_n_f32(CAROTENE_ROUND_DELTA);
return vcvt_u32_f32(vsub_f32(vadd_f32(val, delta), delta));
#endif
}
inline int32x4_t vroundq_s32_f32(const float32x4_t val)
{
#if defined(__ARM_ARCH) && (__ARM_ARCH >= 8)
return vcvtnq_s32_f32(val);
#else
const float32x4_t delta = vdupq_n_f32(CAROTENE_ROUND_DELTA);
return vcvtq_s32_f32(vsubq_f32(vaddq_f32(val, delta), delta));
#endif
}
inline int32x2_t vround_s32_f32(const float32x2_t val)
{
#if defined(__ARM_ARCH) && (__ARM_ARCH >= 8)
return vcvtn_s32_f32(val);
#else
const float32x2_t delta = vdup_n_f32(CAROTENE_ROUND_DELTA);
return vcvt_s32_f32(vsub_f32(vadd_f32(val, delta), delta));
#endif
}
} }
#endif // CAROTENE_NEON
#endif

View File

@@ -1,32 +0,0 @@
if(HAVE_FASTCV)
set(FASTCV_HAL_VERSION 0.0.1 CACHE INTERNAL "")
set(FASTCV_HAL_LIBRARIES "fastcv_hal" CACHE INTERNAL "")
set(FASTCV_HAL_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/include" CACHE INTERNAL "")
set(FASTCV_HAL_HEADERS
"${CMAKE_CURRENT_SOURCE_DIR}/include/fastcv_hal_core.hpp"
"${CMAKE_CURRENT_SOURCE_DIR}/include/fastcv_hal_imgproc.hpp"
CACHE INTERNAL "")
file(GLOB FASTCV_HAL_FILES "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp")
add_library(fastcv_hal STATIC ${FASTCV_HAL_FILES})
target_include_directories(fastcv_hal PRIVATE
${CMAKE_SOURCE_DIR}/modules/core/include
${CMAKE_SOURCE_DIR}/modules/imgproc/include
${FASTCV_HAL_INCLUDE_DIRS} ${FastCV_INCLUDE_PATH})
target_link_libraries(fastcv_hal PUBLIC ${FASTCV_LIBRARY})
set_target_properties(fastcv_hal PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${3P_LIBRARY_OUTPUT_PATH})
if(NOT BUILD_SHARED_LIBS)
ocv_install_target(fastcv_hal EXPORT OpenCVModules ARCHIVE DESTINATION ${OPENCV_3P_LIB_INSTALL_PATH} COMPONENT dev)
endif()
if(ENABLE_SOLUTION_FOLDERS)
set_target_properties(fastcv_hal PROPERTIES FOLDER "3rdparty")
endif()
else()
message(STATUS "FastCV is not available, disabling related HAL")
endif(HAVE_FASTCV)

View File

@@ -1,43 +0,0 @@
function(download_fastcv root_dir)
# Commit SHA in the opencv_3rdparty repo
set(FASTCV_COMMIT "dc5d58018f3af915a8d209386d2c58c0501c0f2c")
# Define actual FastCV versions
if(ANDROID)
if(AARCH64)
message(STATUS "Download FastCV for Android aarch64")
set(FCV_PACKAGE_NAME "fastcv_android_aarch64_2024_12_11.tgz")
set(FCV_PACKAGE_HASH "9dac41e86597305f846212dae31a4a88")
else()
message(STATUS "Download FastCV for Android armv7")
set(FCV_PACKAGE_NAME "fastcv_android_arm32_2024_12_11.tgz")
set(FCV_PACKAGE_HASH "fe2d30334180b17e3031eee92aac43b6")
endif()
elseif(UNIX AND NOT APPLE AND NOT IOS AND NOT XROS)
if(AARCH64)
set(FCV_PACKAGE_NAME "fastcv_linux_aarch64_2024_12_11.tgz")
set(FCV_PACKAGE_HASH "7b33ad833e6f15ab6d4ec64fa3c17acd")
else()
message("FastCV: fastcv lib for 32-bit Linux is not supported for now!")
endif()
endif(ANDROID)
# Download Package
set(OPENCV_FASTCV_URL "https://raw.githubusercontent.com/opencv/opencv_3rdparty/${FASTCV_COMMIT}/fastcv/")
ocv_download( FILENAME ${FCV_PACKAGE_NAME}
HASH ${FCV_PACKAGE_HASH}
URL ${OPENCV_FASTCV_URL}
DESTINATION_DIR ${root_dir}
ID FASTCV
STATUS res
UNPACK
RELATIVE_URL)
if(res)
set(HAVE_FASTCV TRUE CACHE BOOL "FastCV status")
else()
message(WARNING "FastCV: package download failed!")
endif()
endfunction()

View File

@@ -1,222 +0,0 @@
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef OPENCV_FASTCV_HAL_CORE_HPP_INCLUDED
#define OPENCV_FASTCV_HAL_CORE_HPP_INCLUDED
#include <opencv2/core/base.hpp>
#undef cv_hal_lut
#define cv_hal_lut fastcv_hal_lut
#undef cv_hal_normHammingDiff8u
#define cv_hal_normHammingDiff8u fastcv_hal_normHammingDiff8u
#undef cv_hal_mul8u16u
#define cv_hal_mul8u16u fastcv_hal_mul8u16u
#undef cv_hal_sub8u32f
#define cv_hal_sub8u32f fastcv_hal_sub8u32f
#undef cv_hal_transpose2d
#define cv_hal_transpose2d fastcv_hal_transpose2d
#undef cv_hal_meanStdDev
#define cv_hal_meanStdDev fastcv_hal_meanStdDev
#undef cv_hal_flip
#define cv_hal_flip fastcv_hal_flip
#undef cv_hal_rotate90
#define cv_hal_rotate90 fastcv_hal_rotate
#undef cv_hal_addWeighted8u
#define cv_hal_addWeighted8u fastcv_hal_addWeighted8u
#undef cv_hal_mul8u
#define cv_hal_mul8u fastcv_hal_mul8u
#undef cv_hal_mul16s
#define cv_hal_mul16s fastcv_hal_mul16s
#undef cv_hal_mul32f
#define cv_hal_mul32f fastcv_hal_mul32f
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief look-up table transform of an array.
/// @param src_data Source image data
/// @param src_step Source image step
/// @param src_type Source image type
/// @param lut_data Pointer to lookup table
/// @param lut_channel_size Size of each channel in bytes
/// @param lut_channels Number of channels in lookup table
/// @param dst_data Destination data
/// @param dst_step Destination step
/// @param width Width of images
/// @param height Height of images
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_lut(
const uchar* src_data,
size_t src_step,
size_t src_type,
const uchar* lut_data,
size_t lut_channel_size,
size_t lut_channels,
uchar* dst_data,
size_t dst_step,
int width,
int height);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Hamming distance between two vectors
/// @param a pointer to first vector data
/// @param b pointer to second vector data
/// @param n length of vectors
/// @param cellSize how many bits of the vectors will be added and treated as a single bit, can be 1 (standard Hamming distance), 2 or 4
/// @param result pointer to result output
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_normHammingDiff8u(const uchar* a, const uchar* b, int n, int cellSize, int* result);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_mul8u16u(
const uchar * src1_data,
size_t src1_step,
const uchar * src2_data,
size_t src2_step,
ushort * dst_data,
size_t dst_step,
int width,
int height,
double scale);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_sub8u32f(
const uchar *src1_data,
size_t src1_step,
const uchar *src2_data,
size_t src2_step,
float *dst_data,
size_t dst_step,
int width,
int height);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_transpose2d(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int src_width,
int src_height,
int element_size);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_meanStdDev(
const uchar * src_data,
size_t src_step,
int width,
int height,
int src_type,
double * mean_val,
double * stddev_val,
uchar * mask,
size_t mask_step);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Flips a 2D array around vertical, horizontal, or both axes
/// @param src_type source and destination image type
/// @param src_data source image data
/// @param src_step source image step
/// @param src_width source and destination image width
/// @param src_height source and destination image height
/// @param dst_data destination image data
/// @param dst_step destination image step
/// @param flip_mode 0 flips around x-axis, 1 around y-axis, -1 both
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_flip(
int src_type,
const uchar* src_data,
size_t src_step,
int src_width,
int src_height,
uchar* dst_data,
size_t dst_step,
int flip_mode);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Rotates a 2D array in multiples of 90 degrees.
/// @param src_type source and destination image type
/// @param src_data source image data
/// @param src_step source image step
/// @param src_width source image width
/// @If angle has value [180] it is also destination image width
/// If angle has values [90, 270] it is also destination image height
/// @param src_height source and destination image height (destination image width for angles [90, 270])
/// If angle has value [180] it is also destination image height
/// If angle has values [90, 270] it is also destination image width
/// @param dst_data destination image data
/// @param dst_step destination image step
/// @param angle clockwise angle for rotation in degrees from set [90, 180, 270]
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_rotate(
int src_type,
const uchar* src_data,
size_t src_step,
int src_width,
int src_height,
uchar* dst_data,
size_t dst_step,
int angle);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief weighted sum of two arrays using formula: dst[i] = a * src1[i] + b * src2[i]
/// @param src1_data first source image data
/// @param src1_step first source image step
/// @param src2_data second source image data
/// @param src2_step second source image step
/// @param dst_data destination image data
/// @param dst_step destination image step
/// @param width width of the images
/// @param height height of the images
/// @param scalars numbers a, b, and c
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_addWeighted8u(
const uchar* src1_data,
size_t src1_step,
const uchar* src2_data,
size_t src2_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
const double scalars[3]);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_mul8u(
const uchar *src1_data,
size_t src1_step,
const uchar *src2_data,
size_t src2_step,
uchar *dst_data,
size_t dst_step,
int width,
int height,
double scale);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_mul16s(
const short *src1_data,
size_t src1_step,
const short *src2_data,
size_t src2_step,
short *dst_data,
size_t dst_step,
int width,
int height,
double scale);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_mul32f(
const float *src1_data,
size_t src1_step,
const float *src2_data,
size_t src2_step,
float *dst_data,
size_t dst_step,
int width,
int height,
double scale);
#endif

View File

@@ -1,268 +0,0 @@
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef OPENCV_FASTCV_HAL_IMGPROC_HPP_INCLUDED
#define OPENCV_FASTCV_HAL_IMGPROC_HPP_INCLUDED
#include <opencv2/core/base.hpp>
#undef cv_hal_medianBlur
#define cv_hal_medianBlur fastcv_hal_medianBlur
#undef cv_hal_sobel
#define cv_hal_sobel fastcv_hal_sobel
#undef cv_hal_boxFilter
#define cv_hal_boxFilter fastcv_hal_boxFilter
#undef cv_hal_adaptiveThreshold
#define cv_hal_adaptiveThreshold fastcv_hal_adaptiveThreshold
#undef cv_hal_gaussianBlurBinomial
#define cv_hal_gaussianBlurBinomial fastcv_hal_gaussianBlurBinomial
#undef cv_hal_warpPerspective
#define cv_hal_warpPerspective fastcv_hal_warpPerspective
#undef cv_hal_pyrdown
#define cv_hal_pyrdown fastcv_hal_pyrdown
#undef cv_hal_cvtBGRtoHSV
#define cv_hal_cvtBGRtoHSV fastcv_hal_cvtBGRtoHSV
#undef cv_hal_cvtBGRtoYUVApprox
#define cv_hal_cvtBGRtoYUVApprox fastcv_hal_cvtBGRtoYUVApprox
#undef cv_hal_canny
#define cv_hal_canny fastcv_hal_canny
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Calculate medianBlur filter
/// @param src_data Source image data
/// @param src_step Source image step
/// @param dst_data Destination image data
/// @param dst_step Destination image step
/// @param width Source image width
/// @param height Source image height
/// @param depth Depths of source and destination image
/// @param cn Number of channels
/// @param ksize Size of kernel
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_medianBlur(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
int depth,
int cn,
int ksize);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Computes Sobel derivatives
///
/// @param src_data Source image data
/// @param src_step Source image step
/// @param dst_data Destination image data
/// @param dst_step Destination image step
/// @param width Source image width
/// @param height Source image height
/// @param src_depth Depth of source image
/// @param dst_depth Depths of destination image
/// @param cn Number of channels
/// @param margin_left Left margins for source image
/// @param margin_top Top margins for source image
/// @param margin_right Right margins for source image
/// @param margin_bottom Bottom margins for source image
/// @param dx orders of the derivative x
/// @param dy orders of the derivative y
/// @param ksize Size of kernel
/// @param scale Scale factor for the computed derivative values
/// @param delta Delta value that is added to the results prior to storing them in dst
/// @param border_type Border type
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_sobel(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
int src_depth,
int dst_depth,
int cn,
int margin_left,
int margin_top,
int margin_right,
int margin_bottom,
int dx,
int dy,
int ksize,
double scale,
double delta,
int border_type);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_boxFilter(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
int src_depth,
int dst_depth,
int cn,
int margin_left,
int margin_top,
int margin_right,
int margin_bottom,
size_t ksize_width,
size_t ksize_height,
int anchor_x,
int anchor_y,
bool normalize,
int border_type);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_adaptiveThreshold(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
double maxValue,
int adaptiveMethod,
int thresholdType,
int blockSize,
double C);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Blurs an image using a Gaussian filter.
/// @param src_data Source image data
/// @param src_step Source image step
/// @param dst_data Destination image data
/// @param dst_step Destination image step
/// @param width Source image width
/// @param height Source image height
/// @param depth Depth of source and destination image
/// @param cn Number of channels
/// @param margin_left Left margins for source image
/// @param margin_top Top margins for source image
/// @param margin_right Right margins for source image
/// @param margin_bottom Bottom margins for source image
/// @param ksize Kernel size
/// @param border_type Border type
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_gaussianBlurBinomial(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
int depth,
int cn,
size_t margin_left,
size_t margin_top,
size_t margin_right,
size_t margin_bottom,
size_t ksize,
int border_type);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Applies a perspective transformation to an image.
///
/// @param src_type Source and destination image type
/// @param src_data Source image data
/// @param src_step Source image step
/// @param src_width Source image width
/// @param src_height Source image height
/// @param dst_data Destination image data
/// @param dst_step Destination image step
/// @param dst_width Destination image width
/// @param dst_height Destination image height
/// @param M 3x3 matrix with transform coefficients
/// @param interpolation Interpolation mode (CV_HAL_INTER_NEAREST, ...)
/// @param border_type Border processing mode (CV_HAL_BORDER_REFLECT, ...)
/// @param border_value Values to use for CV_HAL_BORDER_CONSTANT mode
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_warpPerspective(
int src_type,
const uchar* src_data,
size_t src_step,
int src_width,
int src_height,
uchar* dst_data,
size_t dst_step,
int dst_width,
int dst_height,
const double M[9],
int interpolation,
int border_type,
const double border_value[4]);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_pyrdown(
const uchar* src_data,
size_t src_step,
int src_width,
int src_height,
uchar* dst_data,
size_t dst_step,
int dst_width,
int dst_height,
int depth,
int cn,
int border_type);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_cvtBGRtoHSV(
const uchar * src_data,
size_t src_step,
uchar * dst_data,
size_t dst_step,
int width,
int height,
int depth,
int scn,
bool swapBlue,
bool isFullRange,
bool isHSV);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_cvtBGRtoYUVApprox(
const uchar * src_data,
size_t src_step,
uchar * dst_data,
size_t dst_step,
int width,
int height,
int depth,
int scn,
bool swapBlue,
bool isCbCr);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// @brief Canny edge detector
/// @param src_data Source image data
/// @param src_step Source image step
/// @param dst_data Destination image data
/// @param dst_step Destination image step
/// @param width Source image width
/// @param height Source image height
/// @param cn Number of channels
/// @param lowThreshold low hresholds value
/// @param highThreshold high thresholds value
/// @param ksize Kernel size for Sobel operator.
/// @param L2gradient Flag, indicating use of L2 or L1 norma.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int fastcv_hal_canny(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
int cn,
double lowThreshold,
double highThreshold,
int ksize,
bool L2gradient);
#endif

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@@ -1,84 +0,0 @@
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef OPENCV_FASTCV_HAL_UTILS_HPP_INCLUDED
#define OPENCV_FASTCV_HAL_UTILS_HPP_INCLUDED
#include "fastcv.h"
#include <opencv2/core/utils/logger.hpp>
#define INITIALIZATION_CHECK \
{ \
if (!FastCvContext::getContext().isInitialized) \
{ \
return CV_HAL_ERROR_UNKNOWN; \
} \
}
#define CV_HAL_RETURN(status, func) \
{ \
if( status == FASTCV_SUCCESS ) \
{ \
CV_LOG_DEBUG(NULL, "FastCV HAL for "<<#func<<" run successfully!"); \
return CV_HAL_ERROR_OK; \
} \
else if(status == FASTCV_EBADPARAM || status == FASTCV_EUNALIGNPARAM || \
status == FASTCV_EUNSUPPORTED || status == FASTCV_EHWQDSP || \
status == FASTCV_EHWGPU) \
{ \
CV_LOG_DEBUG(NULL, "FastCV status:"<<getFastCVErrorString(status) \
<<", Switching to default OpenCV solution!"); \
return CV_HAL_ERROR_NOT_IMPLEMENTED; \
} \
else \
{ \
CV_LOG_ERROR(NULL,"FastCV error:"<<getFastCVErrorString(status)); \
return CV_HAL_ERROR_UNKNOWN; \
} \
}
#define CV_HAL_RETURN_NOT_IMPLEMENTED(reason) \
{ \
CV_LOG_DEBUG(NULL,"Switching to default OpenCV\nInfo: "<<reason); \
return CV_HAL_ERROR_NOT_IMPLEMENTED; \
}
#define FCV_KernelSize_SHIFT 3
#define FCV_MAKETYPE(ksize,depth) ((ksize<<FCV_KernelSize_SHIFT) + depth)
#define FCV_CMP_EQ(val1,val2) (fabs(val1 - val2) < FLT_EPSILON)
const char* getFastCVErrorString(int status);
const char* borderToString(int border);
const char* interpolationToString(int interpolation);
struct FastCvContext
{
public:
// initialize at first call
// Defines a static local variable context. Variable is created only once.
static FastCvContext& getContext()
{
static FastCvContext context;
return context;
}
FastCvContext()
{
if (fcvSetOperationMode(FASTCV_OP_CPU_PERFORMANCE) != 0)
{
CV_LOG_WARNING(NULL, "Failed to switch FastCV operation mode");
isInitialized = false;
}
else
{
CV_LOG_INFO(NULL, "FastCV Operation Mode Switched");
isInitialized = true;
}
}
bool isInitialized;
};
#endif

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@@ -1,574 +0,0 @@
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*/
#include "fastcv_hal_core.hpp"
#include "fastcv_hal_utils.hpp"
#include <opencv2/core/core.hpp>
#include <opencv2/core/base.hpp>
class ParallelTableLookup : public cv::ParallelLoopBody
{
public:
ParallelTableLookup(const uchar* src_data_, int width_, size_t src_step_, const uchar* lut_data_, uchar* dst_data_, size_t dst_step_) :
cv::ParallelLoopBody(), src_data(src_data_), width(width_), src_step(src_step_), lut_data(lut_data_), dst_data(dst_data_), dst_step(dst_step_)
{
}
virtual void operator()(const cv::Range& range) const CV_OVERRIDE
{
fcvStatus status = FASTCV_SUCCESS;
for (int y = range.start; y < range.end; y++) {
status = fcvTableLookupu8((uint8_t*)src_data + y * src_step, width, 1, src_step, (uint8_t*)lut_data, (uint8_t*)dst_data + y * dst_step, dst_step);
if(status != FASTCV_SUCCESS)
CV_LOG_ERROR(NULL,"FastCV error:"<<getFastCVErrorString(status));
}
}
private:
const uchar* src_data;
int width;
size_t src_step;
const uchar* lut_data;
uchar* dst_data;
size_t dst_step;
};
int fastcv_hal_lut(
const uchar* src_data,
size_t src_step,
size_t src_type,
const uchar* lut_data,
size_t lut_channel_size,
size_t lut_channels,
uchar* dst_data,
size_t dst_step,
int width,
int height)
{
if((width*height)<=(320*240))
CV_HAL_RETURN_NOT_IMPLEMENTED("Switching to default OpenCV solution!");
INITIALIZATION_CHECK;
fcvStatus status;
if (src_type == CV_8UC1 && lut_channels == 1 && lut_channel_size == 1)
{
cv::parallel_for_(cv::Range(0, height),
ParallelTableLookup(src_data, width, src_step, lut_data, dst_data, dst_step));
status = FASTCV_SUCCESS;
CV_HAL_RETURN(status, hal_lut);
}
else
{
CV_HAL_RETURN_NOT_IMPLEMENTED("Multi-channel input is not supported");
}
}
int fastcv_hal_normHammingDiff8u(
const uchar* a,
const uchar* b,
int n,
int cellSize,
int* result)
{
fcvStatus status;
if (cellSize != 1)
CV_HAL_RETURN_NOT_IMPLEMENTED(cv::format("NORM_HAMMING2 cellSize:%d is not supported", cellSize));
INITIALIZATION_CHECK;
uint32_t dist = 0;
dist = fcvHammingDistanceu8((uint8_t*)a, (uint8_t*)b, n);
*result = dist;
status = FASTCV_SUCCESS;
CV_HAL_RETURN(status, hal_normHammingDiff8u);
}
int fastcv_hal_mul8u16u(
const uchar* src1_data,
size_t src1_step,
const uchar* src2_data,
size_t src2_step,
ushort* dst_data,
size_t dst_step,
int width,
int height,
double scale)
{
if(scale != 1.0)
CV_HAL_RETURN_NOT_IMPLEMENTED("Scale factor not supported");
INITIALIZATION_CHECK;
fcvStatus status = FASTCV_SUCCESS;
if (src1_step < (size_t)width && src2_step < (size_t)width)
{
src1_step = width*sizeof(uchar);
src2_step = width*sizeof(uchar);
dst_step = width*sizeof(ushort);
}
status = fcvElementMultiplyu8u16_v2(src1_data, width, height, src1_step,
src2_data, src2_step, dst_data, dst_step);
CV_HAL_RETURN(status,hal_multiply);
}
int fastcv_hal_sub8u32f(
const uchar* src1_data,
size_t src1_step,
const uchar* src2_data,
size_t src2_step,
float* dst_data,
size_t dst_step,
int width,
int height)
{
INITIALIZATION_CHECK;
fcvStatus status = FASTCV_SUCCESS;
if (src1_step < (size_t)width && src2_step < (size_t)width)
{
src1_step = width*sizeof(uchar);
src2_step = width*sizeof(uchar);
dst_step = width*sizeof(float);
}
status = fcvImageDiffu8f32_v2(src1_data, src2_data, width, height, src1_step,
src2_step, dst_data, dst_step);
CV_HAL_RETURN(status,hal_subtract);
}
int fastcv_hal_transpose2d(
const uchar* src_data,
size_t src_step,
uchar* dst_data,
size_t dst_step,
int src_width,
int src_height,
int element_size)
{
INITIALIZATION_CHECK;
if (src_data == dst_data)
CV_HAL_RETURN_NOT_IMPLEMENTED("In-place not supported");
fcvStatus status = FASTCV_SUCCESS;
switch (element_size)
{
case 1:
status = fcvTransposeu8_v2(src_data, src_width, src_height, src_step,
dst_data, dst_step);
break;
case 2:
status = fcvTransposeu16_v2((const uint16_t*)src_data, src_width, src_height,
src_step, (uint16_t*)dst_data, dst_step);
break;
case 4:
status = fcvTransposef32_v2((const float32_t*)src_data, src_width, src_height,
src_step, (float32_t*)dst_data, dst_step);
break;
default:
CV_HAL_RETURN_NOT_IMPLEMENTED("srcType not supported");
}
CV_HAL_RETURN(status,hal_transpose);
}
int fastcv_hal_meanStdDev(
const uchar* src_data,
size_t src_step,
int width,
int height,
int src_type,
double* mean_val,
double* stddev_val,
uchar* mask,
size_t mask_step)
{
INITIALIZATION_CHECK;
CV_UNUSED(mask_step);
if(src_type != CV_8UC1)
{
CV_HAL_RETURN_NOT_IMPLEMENTED("src type not supported");
}
else if(mask != nullptr)
{
CV_HAL_RETURN_NOT_IMPLEMENTED("mask not supported");
}
else if(mean_val == nullptr && stddev_val == nullptr)
{
CV_HAL_RETURN_NOT_IMPLEMENTED("null ptr for mean and stddev");
}
float32_t mean, variance;
fcvStatus status = fcvImageIntensityStats_v2(src_data, src_step, 0, 0, width, height,
&mean, &variance, FASTCV_BIASED_VARIANCE_ESTIMATOR);
if(mean_val != nullptr)
*mean_val = mean;
if(stddev_val != nullptr)
*stddev_val = std::sqrt(variance);
CV_HAL_RETURN(status,hal_meanStdDev);
}
int fastcv_hal_flip(
int src_type,
const uchar* src_data,
size_t src_step,
int src_width,
int src_height,
uchar* dst_data,
size_t dst_step,
int flip_mode)
{
INITIALIZATION_CHECK;
if(src_type!=CV_8UC1 && src_type!=CV_16UC1 && src_type!=CV_8UC3)
CV_HAL_RETURN_NOT_IMPLEMENTED("Data type is not supported, Switching to default OpenCV solution!");
if((src_width*src_height)<=(640*480))
CV_HAL_RETURN_NOT_IMPLEMENTED("Switching to default OpenCV solution!");
fcvStatus status = FASTCV_SUCCESS;;
fcvFlipDir dir;
switch (flip_mode)
{
//Flip around X-Axis: Vertical Flip or FLIP_ROWS
case 0:
CV_HAL_RETURN_NOT_IMPLEMENTED("Switching to default OpenCV solution due to low perf!");
dir = FASTCV_FLIP_VERT;
break;
//Flip around Y-Axis: Horizontal Flip or FLIP_COLS
case 1:
dir = FASTCV_FLIP_HORIZ;
break;
//Flip around both X and Y-Axis or FLIP_BOTH
case -1:
dir = FASTCV_FLIP_BOTH;
break;
default:
CV_HAL_RETURN_NOT_IMPLEMENTED("Invalid flip_mode, Switching to default OpenCV solution!");
}
if(src_type==CV_8UC1)
fcvFlipu8(src_data, src_width, src_height, src_step, dst_data, dst_step, dir);
else if(src_type==CV_16UC1)
fcvFlipu16((uint16_t*)src_data, src_width, src_height, src_step, (uint16_t*)dst_data, dst_step, dir);
else if(src_type==CV_8UC3)
status = fcvFlipRGB888u8((uint8_t*)src_data, src_width, src_height, src_step, (uint8_t*)dst_data, dst_step, dir);
else
CV_HAL_RETURN_NOT_IMPLEMENTED(cv::format("Data type:%d is not supported, Switching to default OpenCV solution!", src_type));
CV_HAL_RETURN(status, hal_flip);
}
int fastcv_hal_rotate(
int src_type,
const uchar* src_data,
size_t src_step,
int src_width,
int src_height,
uchar* dst_data,
size_t dst_step,
int angle)
{
if((src_width*src_height)<(120*80))
CV_HAL_RETURN_NOT_IMPLEMENTED("Switching to default OpenCV solution for lower resolution!");
fcvStatus status;
fcvRotateDegree degree;
if (src_type != CV_8UC1 && src_type != CV_8UC2)
CV_HAL_RETURN_NOT_IMPLEMENTED(cv::format("src_type:%d is not supported", src_type));
INITIALIZATION_CHECK;
switch (angle)
{
case 90:
degree = FASTCV_ROTATE_90;
break;
case 180:
degree = FASTCV_ROTATE_180;
break;
case 270:
degree = FASTCV_ROTATE_270;
break;
default:
CV_HAL_RETURN_NOT_IMPLEMENTED(cv::format("Rotation angle:%d is not supported", angle));
}
switch(src_type)
{
case CV_8UC1:
status = fcvRotateImageu8(src_data, src_width, src_height, src_step, dst_data, dst_step, degree);
break;
case CV_8UC2:
status = fcvRotateImageInterleavedu8((uint8_t*)src_data, src_width, src_height, src_step, (uint8_t*)dst_data,
dst_step, degree);
break;
default:
CV_HAL_RETURN_NOT_IMPLEMENTED(cv::format("src_type:%d is not supported", src_type));
}
CV_HAL_RETURN(status, hal_rotate);
}
int fastcv_hal_addWeighted8u(
const uchar* src1_data,
size_t src1_step,
const uchar* src2_data,
size_t src2_step,
uchar* dst_data,
size_t dst_step,
int width,
int height,
const double scalars[3])
{
if( (scalars[0] < -128.0f) || (scalars[0] >= 128.0f) ||
(scalars[1] < -128.0f) || (scalars[1] >= 128.0f) ||
(scalars[2] < -(1<<23))|| (scalars[2] >= 1<<23))
CV_HAL_RETURN_NOT_IMPLEMENTED(
cv::format("Alpha:%f,Beta:%f,Gamma:%f is not supported because it's too large or too small\n",
scalars[0],scalars[1],scalars[2]));
INITIALIZATION_CHECK;
fcvStatus status = FASTCV_SUCCESS;
if (height == 1)
{
src1_step = width*sizeof(uchar);
src2_step = width*sizeof(uchar);
dst_step = width*sizeof(uchar);
cv::parallel_for_(cv::Range(0, width), [&](const cv::Range &range){
int rangeWidth = range.end - range.start;
const uint8_t *src1 = src1_data + range.start;
const uint8_t *src2 = src2_data + range.start;
uint8_t *dst = dst_data + range.start;
fcvAddWeightedu8_v2(src1, rangeWidth, height, src1_step, src2, src2_step,
scalars[0], scalars[1], scalars[2], dst, dst_step);
});
}
else
{
cv::parallel_for_(cv::Range(0, height), [&](const cv::Range &range){
int rangeHeight = range.end - range.start;
const uint8_t *src1 = src1_data + range.start * src1_step;
const uint8_t *src2 = src2_data + range.start * src2_step;
uint8_t *dst = dst_data + range.start * dst_step;
fcvAddWeightedu8_v2(src1, width, rangeHeight, src1_step, src2, src2_step,
scalars[0], scalars[1], scalars[2], dst, dst_step);
});
}
CV_HAL_RETURN(status, hal_addWeighted8u_v2);
}
int fastcv_hal_mul8u(
const uchar *src1_data,
size_t src1_step,
const uchar *src2_data,
size_t src2_step,
uchar *dst_data,
size_t dst_step,
int width,
int height,
double scale)
{
int8_t sF;
if(FCV_CMP_EQ(scale,1.0)) { sF = 0; }
else if(scale > 1.0)
{
if(FCV_CMP_EQ(scale,2.0)) { sF = -1; }
else if(FCV_CMP_EQ(scale,4.0)) { sF = -2; }
else if(FCV_CMP_EQ(scale,8.0)) { sF = -3; }
else if(FCV_CMP_EQ(scale,16.0)) { sF = -4; }
else if(FCV_CMP_EQ(scale,32.0)) { sF = -5; }
else if(FCV_CMP_EQ(scale,64.0)) { sF = -6; }
else if(FCV_CMP_EQ(scale,128.0)) { sF = -7; }
else if(FCV_CMP_EQ(scale,256.0)) { sF = -8; }
else CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
}
else if(scale > 0 && scale < 1.0)
{
if(FCV_CMP_EQ(scale,1/2.0)) { sF = 1; }
else if(FCV_CMP_EQ(scale,1/4.0)) { sF = 2; }
else if(FCV_CMP_EQ(scale,1/8.0)) { sF = 3; }
else if(FCV_CMP_EQ(scale,1/16.0)) { sF = 4; }
else if(FCV_CMP_EQ(scale,1/32.0)) { sF = 5; }
else if(FCV_CMP_EQ(scale,1/64.0)) { sF = 6; }
else if(FCV_CMP_EQ(scale,1/128.0)) { sF = 7; }
else if(FCV_CMP_EQ(scale,1/256.0)) { sF = 8; }
else CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
}
else
CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
INITIALIZATION_CHECK;
int nStripes = cv::getNumThreads();
if(height == 1)
{
cv::parallel_for_(cv::Range(0, width), [&](const cv::Range &range){
int rangeWidth = range.end - range.start;
const uchar* yS1 = src1_data + static_cast<size_t>(range.start);
const uchar* yS2 = src2_data + static_cast<size_t>(range.start);
uchar* yD = dst_data + static_cast<size_t>(range.start);
fcvElementMultiplyu8(yS1, rangeWidth, 1, 0, yS2, 0, sF,
FASTCV_CONVERT_POLICY_SATURATE, yD, 0);
}, nStripes);
}
else
{
cv::parallel_for_(cv::Range(0, height), [&](const cv::Range &range){
int rangeHeight = range.end - range.start;
const uchar* yS1 = src1_data + static_cast<size_t>(range.start)*src1_step;
const uchar* yS2 = src2_data + static_cast<size_t>(range.start)*src2_step;
uchar* yD = dst_data + static_cast<size_t>(range.start)*dst_step;
fcvElementMultiplyu8(yS1, width, rangeHeight, src1_step, yS2, src2_step,
sF, FASTCV_CONVERT_POLICY_SATURATE, yD, dst_step);
}, nStripes);
}
fcvStatus status = FASTCV_SUCCESS;
CV_HAL_RETURN(status, hal_mul8u);
}
int fastcv_hal_mul16s(
const short *src1_data,
size_t src1_step,
const short *src2_data,
size_t src2_step,
short *dst_data,
size_t dst_step,
int width,
int height,
double scale)
{
int8_t sF;
if(FCV_CMP_EQ(scale,1.0)) { sF = 0; }
else if(scale > 1.0)
{
if(FCV_CMP_EQ(scale,2.0)) { sF = -1; }
else if(FCV_CMP_EQ(scale,4.0)) { sF = -2; }
else if(FCV_CMP_EQ(scale,8.0)) { sF = -3; }
else if(FCV_CMP_EQ(scale,16.0)) { sF = -4; }
else if(FCV_CMP_EQ(scale,32.0)) { sF = -5; }
else if(FCV_CMP_EQ(scale,64.0)) { sF = -6; }
else if(FCV_CMP_EQ(scale,128.0)) { sF = -7; }
else if(FCV_CMP_EQ(scale,256.0)) { sF = -8; }
else CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
}
else if(scale > 0 && scale < 1.0)
{
if(FCV_CMP_EQ(scale,1/2.0)) { sF = 1; }
else if(FCV_CMP_EQ(scale,1/4.0)) { sF = 2; }
else if(FCV_CMP_EQ(scale,1/8.0)) { sF = 3; }
else if(FCV_CMP_EQ(scale,1/16.0)) { sF = 4; }
else if(FCV_CMP_EQ(scale,1/32.0)) { sF = 5; }
else if(FCV_CMP_EQ(scale,1/64.0)) { sF = 6; }
else if(FCV_CMP_EQ(scale,1/128.0)) { sF = 7; }
else if(FCV_CMP_EQ(scale,1/256.0)) { sF = 8; }
else CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
}
else
CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
INITIALIZATION_CHECK;
int nStripes = cv::getNumThreads();
if(height == 1)
{
cv::parallel_for_(cv::Range(0, width), [&](const cv::Range &range){
int rangeWidth = range.end - range.start;
const short* yS1 = src1_data + static_cast<size_t>(range.start);
const short* yS2 = src2_data + static_cast<size_t>(range.start);
short* yD = dst_data + static_cast<size_t>(range.start);
fcvElementMultiplys16(yS1, rangeWidth, 1, 0, yS2, 0, sF,
FASTCV_CONVERT_POLICY_SATURATE, yD, 0);
}, nStripes);
}
else
{
cv::parallel_for_(cv::Range(0, height), [&](const cv::Range &range){
int rangeHeight = range.end - range.start;
const short* yS1 = src1_data + static_cast<size_t>(range.start) * (src1_step/sizeof(short));
const short* yS2 = src2_data + static_cast<size_t>(range.start) * (src2_step/sizeof(short));
short* yD = dst_data + static_cast<size_t>(range.start) * (dst_step/sizeof(short));
fcvElementMultiplys16(yS1, width, rangeHeight, src1_step, yS2, src2_step,
sF, FASTCV_CONVERT_POLICY_SATURATE, yD, dst_step);
}, nStripes);
}
fcvStatus status = FASTCV_SUCCESS;
CV_HAL_RETURN(status, hal_mul16s);
}
int fastcv_hal_mul32f(
const float *src1_data,
size_t src1_step,
const float *src2_data,
size_t src2_step,
float *dst_data,
size_t dst_step,
int width,
int height,
double scale)
{
if(!FCV_CMP_EQ(scale,1.0))
CV_HAL_RETURN_NOT_IMPLEMENTED("scale factor not supported");
INITIALIZATION_CHECK;
int nStripes = cv::getNumThreads();
if(height == 1)
{
cv::parallel_for_(cv::Range(0, width), [&](const cv::Range &range){
int rangeWidth = range.end - range.start;
const float* yS1 = src1_data + static_cast<size_t>(range.start);
const float* yS2 = src2_data + static_cast<size_t>(range.start);
float* yD = dst_data + static_cast<size_t>(range.start);
fcvElementMultiplyf32(yS1, rangeWidth, 1, 0, yS2, 0, yD, 0);
}, nStripes);
}
else
{
cv::parallel_for_(cv::Range(0, height), [&](const cv::Range &range){
int rangeHeight = range.end - range.start;
const float* yS1 = src1_data + static_cast<size_t>(range.start) * (src1_step/sizeof(float));
const float* yS2 = src2_data + static_cast<size_t>(range.start) * (src2_step/sizeof(float));
float* yD = dst_data + static_cast<size_t>(range.start) * (dst_step/sizeof(float));
fcvElementMultiplyf32(yS1, width, rangeHeight, src1_step,
yS2, src2_step, yD, dst_step);
}, nStripes);
}
fcvStatus status = FASTCV_SUCCESS;
CV_HAL_RETURN(status, hal_mul32f);
}

File diff suppressed because it is too large Load Diff

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@@ -1,56 +0,0 @@
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*/
#include "fastcv_hal_utils.hpp"
const char* getFastCVErrorString(int status)
{
switch(status)
{
case FASTCV_SUCCESS: return "Successful";
case FASTCV_EFAIL: return "General failure";
case FASTCV_EUNALIGNPARAM: return "Unaligned pointer parameter";
case FASTCV_EBADPARAM: return "Bad parameters";
case FASTCV_EINVALSTATE: return "Called at invalid state";
case FASTCV_ENORES: return "Insufficient resources, memory, thread, etc";
case FASTCV_EUNSUPPORTED: return "Unsupported feature";
case FASTCV_EHWQDSP: return "Hardware QDSP failed to respond";
case FASTCV_EHWGPU: return "Hardware GPU failed to respond";
default: return "Unknown FastCV Error";
}
}
const char* borderToString(int border)
{
switch (border)
{
case 0: return "BORDER_CONSTANT";
case 1: return "BORDER_REPLICATE";
case 2: return "BORDER_REFLECT";
case 3: return "BORDER_WRAP";
case 4: return "BORDER_REFLECT_101";
case 5: return "BORDER_TRANSPARENT";
default: return "Unknown border type";
}
}
const char* interpolationToString(int interpolation)
{
switch (interpolation)
{
case 0: return "INTER_NEAREST";
case 1: return "INTER_LINEAR";
case 2: return "INTER_CUBIC";
case 3: return "INTER_AREA";
case 4: return "INTER_LANCZOS4";
case 5: return "INTER_LINEAR_EXACT";
case 6: return "INTER_NEAREST_EXACT";
case 7: return "INTER_MAX";
case 8: return "WARP_FILL_OUTLIERS";
case 16: return "WARP_INVERSE_MAP";
case 32: return "WARP_RELATIVE_MAP";
default: return "Unknown interpolation type";
}
}

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@@ -1,8 +1,8 @@
# Binaries branch name: ffmpeg/4.x_20241226
# Binaries were created for OpenCV: 09892c9d1706f40342bda0bc404580f63492d9f8
ocv_update(FFMPEG_BINARIES_COMMIT "d63d7c154c57242bf2283be61166be2bd30ec47e")
ocv_update(FFMPEG_FILE_HASH_BIN32 "642b94d032a8292b07550126934173f6")
ocv_update(FFMPEG_FILE_HASH_BIN64 "a8c3560c8f20e1ae465bef81580fa92c")
# Binaries branch name: ffmpeg/4.x_20230622
# Binaries were created for OpenCV: 61d48dd0f8d1cc1a115d26998705a61478f64a3c
ocv_update(FFMPEG_BINARIES_COMMIT "7da61f0695eabf8972a2c302bf1632a3d99fb0d5")
ocv_update(FFMPEG_FILE_HASH_BIN32 "4aaef1456e282e5ef665d65555f47f56")
ocv_update(FFMPEG_FILE_HASH_BIN64 "38a638851e064c591ce812e27ed43f1f")
ocv_update(FFMPEG_FILE_HASH_CMAKE "8862c87496e2e8c375965e1277dee1c7")
function(download_win_ffmpeg script_var)

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@@ -1,9 +0,0 @@
cmake_minimum_required(VERSION ${MIN_VER_CMAKE} FATAL_ERROR)
set(HAL_LIB_NAME "")
set(RVV_HAL_FOUND TRUE CACHE INTERNAL "")
set(RVV_HAL_VERSION "0.0.1" CACHE INTERNAL "")
set(RVV_HAL_LIBRARIES ${HAL_LIB_NAME} CACHE INTERNAL "")
set(RVV_HAL_HEADERS "hal_rvv.hpp" CACHE INTERNAL "")
set(RVV_HAL_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}" CACHE INTERNAL "")

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@@ -1,27 +0,0 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_HAL_RVV_HPP_INCLUDED
#define OPENCV_HAL_RVV_HPP_INCLUDED
#include "opencv2/core/hal/interface.h"
#ifndef CV_HAL_RVV_071_ENABLED
# if defined(__GNUC__) && __GNUC__ == 10 && __GNUC_MINOR__ == 4 && defined(__THEAD_VERSION__) && defined(__riscv_v) && __riscv_v == 7000
# define CV_HAL_RVV_071_ENABLED 1
# else
# define CV_HAL_RVV_071_ENABLED 0
# endif
#endif
#if CV_HAL_RVV_071_ENABLED
#include "version/hal_rvv_071.hpp"
#endif
#if defined(__riscv_v) && __riscv_v == 1000000
#include "hal_rvv_1p0/merge.hpp" // core
#include "hal_rvv_1p0/mean.hpp" // core
#endif
#endif

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@@ -1,228 +0,0 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_HAL_RVV_MEANSTDDEV_HPP_INCLUDED
#define OPENCV_HAL_RVV_MEANSTDDEV_HPP_INCLUDED
#include <riscv_vector.h>
namespace cv { namespace cv_hal_rvv {
#undef cv_hal_meanStdDev
#define cv_hal_meanStdDev cv::cv_hal_rvv::meanStdDev
inline int meanStdDev_8UC1(const uchar* src_data, size_t src_step, int width, int height,
double* mean_val, double* stddev_val, uchar* mask, size_t mask_step);
inline int meanStdDev_8UC4(const uchar* src_data, size_t src_step, int width, int height,
double* mean_val, double* stddev_val, uchar* mask, size_t mask_step);
inline int meanStdDev_32FC1(const uchar* src_data, size_t src_step, int width, int height,
double* mean_val, double* stddev_val, uchar* mask, size_t mask_step);
inline int meanStdDev(const uchar* src_data, size_t src_step, int width, int height,
int src_type, double* mean_val, double* stddev_val, uchar* mask, size_t mask_step) {
switch (src_type)
{
case CV_8UC1:
return meanStdDev_8UC1(src_data, src_step, width, height, mean_val, stddev_val, mask, mask_step);
case CV_8UC4:
return meanStdDev_8UC4(src_data, src_step, width, height, mean_val, stddev_val, mask, mask_step);
case CV_32FC1:
return meanStdDev_32FC1(src_data, src_step, width, height, mean_val, stddev_val, mask, mask_step);
default:
return CV_HAL_ERROR_NOT_IMPLEMENTED;
}
}
inline int meanStdDev_8UC1(const uchar* src_data, size_t src_step, int width, int height,
double* mean_val, double* stddev_val, uchar* mask, size_t mask_step) {
int nz = 0;
int vlmax = __riscv_vsetvlmax_e64m8();
vuint64m8_t vec_sum = __riscv_vmv_v_x_u64m8(0, vlmax);
vuint64m8_t vec_sqsum = __riscv_vmv_v_x_u64m8(0, vlmax);
if (mask) {
for (int i = 0; i < height; ++i) {
const uchar* src_row = src_data + i * src_step;
const uchar* mask_row = mask + i * mask_step;
int j = 0, vl;
for ( ; j < width; j += vl) {
vl = __riscv_vsetvl_e8m1(width - j);
auto vec_pixel_u8 = __riscv_vle8_v_u8m1(src_row + j, vl);
auto vmask_u8 = __riscv_vle8_v_u8m1(mask_row+j, vl);
auto vec_pixel = __riscv_vzext_vf4(vec_pixel_u8, vl);
auto vmask = __riscv_vmseq_vx_u8m1_b8(vmask_u8, 1, vl);
vec_sum = __riscv_vwaddu_wv_u64m8_tumu(vmask, vec_sum, vec_sum, vec_pixel, vl);
vec_sqsum = __riscv_vwmaccu_vv_u64m8_tumu(vmask, vec_sqsum, vec_pixel, vec_pixel, vl);
nz += __riscv_vcpop_m_b8(vmask, vl);
}
}
} else {
for (int i = 0; i < height; i++) {
const uchar* src_row = src_data + i * src_step;
int j = 0, vl;
for ( ; j < width; j += vl) {
vl = __riscv_vsetvl_e8m1(width - j);
auto vec_pixel_u8 = __riscv_vle8_v_u8m1(src_row + j, vl);
auto vec_pixel = __riscv_vzext_vf4(vec_pixel_u8, vl);
vec_sum = __riscv_vwaddu_wv_u64m8_tu(vec_sum, vec_sum, vec_pixel, vl);
vec_sqsum = __riscv_vwmaccu_vv_u64m8_tu(vec_sqsum, vec_pixel, vec_pixel, vl);
}
}
nz = height * width;
}
if (nz == 0) {
if (mean_val) *mean_val = 0.0;
if (stddev_val) *stddev_val = 0.0;
return CV_HAL_ERROR_OK;
}
auto zero = __riscv_vmv_s_x_u64m1(0, vlmax);
auto vec_red = __riscv_vmv_v_x_u64m1(0, vlmax);
auto vec_reddev = __riscv_vmv_v_x_u64m1(0, vlmax);
vec_red = __riscv_vredsum(vec_sum, zero, vlmax);
vec_reddev = __riscv_vredsum(vec_sqsum, zero, vlmax);
double sum = __riscv_vmv_x(vec_red);
double mean = sum / nz;
if (mean_val) {
*mean_val = mean;
}
if (stddev_val) {
double sqsum = __riscv_vmv_x(vec_reddev);
double variance = std::max((sqsum / nz) - (mean * mean), 0.0);
double stddev = std::sqrt(variance);
*stddev_val = stddev;
}
return CV_HAL_ERROR_OK;
}
inline int meanStdDev_8UC4(const uchar* src_data, size_t src_step, int width, int height,
double* mean_val, double* stddev_val, uchar* mask, size_t mask_step) {
int nz = 0;
int vlmax = __riscv_vsetvlmax_e64m8();
vuint64m8_t vec_sum = __riscv_vmv_v_x_u64m8(0, vlmax);
vuint64m8_t vec_sqsum = __riscv_vmv_v_x_u64m8(0, vlmax);
if (mask) {
for (int i = 0; i < height; ++i) {
const uchar* src_row = src_data + i * src_step;
const uchar* mask_row = mask + i * mask_step;
int j = 0, jm = 0, vl, vlm;
for ( ; j < width*4; j += vl, jm += vlm) {
vl = __riscv_vsetvl_e8m1(width*4 - j);
vlm = __riscv_vsetvl_e8mf4(width - jm);
auto vec_pixel_u8 = __riscv_vle8_v_u8m1(src_row + j, vl);
auto vmask_u8mf4 = __riscv_vle8_v_u8mf4(mask_row + jm, vlm);
auto vmask_u32 = __riscv_vzext_vf4(vmask_u8mf4, vlm);
// 0 -> 0000; 1 -> 1111
vmask_u32 = __riscv_vmul(vmask_u32, 0b00000001000000010000000100000001, vlm);
auto vmask_u8 = __riscv_vreinterpret_u8m1(vmask_u32);
auto vec_pixel = __riscv_vzext_vf4(vec_pixel_u8, vl);
auto vmask = __riscv_vmseq_vx_u8m1_b8(vmask_u8, 1, vl);
vec_sum = __riscv_vwaddu_wv_u64m8_tumu(vmask, vec_sum, vec_sum, vec_pixel, vl);
vec_sqsum = __riscv_vwmaccu_vv_u64m8_tumu(vmask, vec_sqsum, vec_pixel, vec_pixel, vl);
nz += __riscv_vcpop_m_b8(vmask, vl);
}
}
nz /= 4;
} else {
for (int i = 0; i < height; i++) {
const uchar* src_row = src_data + i * src_step;
int j = 0, vl;
for ( ; j < width*4; j += vl) {
vl = __riscv_vsetvl_e8m1(width*4 - j);
auto vec_pixel_u8 = __riscv_vle8_v_u8m1(src_row + j, vl);
auto vec_pixel = __riscv_vzext_vf4(vec_pixel_u8, vl);
vec_sum = __riscv_vwaddu_wv_u64m8_tu(vec_sum, vec_sum, vec_pixel, vl);
vec_sqsum = __riscv_vwmaccu_vv_u64m8_tu(vec_sqsum, vec_pixel, vec_pixel, vl);
}
}
nz = height * width;
}
if (nz == 0) {
if (mean_val) *mean_val = 0.0;
if (stddev_val) *stddev_val = 0.0;
return CV_HAL_ERROR_OK;
}
uint64_t s[256], sq[256], sum[4] = {0}, sqsum[4] = {0};
__riscv_vse64(s, vec_sum, vlmax);
__riscv_vse64(sq, vec_sqsum, vlmax);
for (int i = 0; i < vlmax; ++i)
{
sum[i % 4] += s[i];
sqsum[i % 4] += sq[i];
}
if (mean_val) {
mean_val[0] = (double)sum[0] / nz;
mean_val[1] = (double)sum[1] / nz;
mean_val[2] = (double)sum[2] / nz;
mean_val[3] = (double)sum[3] / nz;
}
if (stddev_val) {
stddev_val[0] = std::sqrt(std::max(((double)sqsum[0] / nz) - (mean_val[0] * mean_val[0]), 0.0));
stddev_val[1] = std::sqrt(std::max(((double)sqsum[1] / nz) - (mean_val[1] * mean_val[1]), 0.0));
stddev_val[2] = std::sqrt(std::max(((double)sqsum[2] / nz) - (mean_val[2] * mean_val[2]), 0.0));
stddev_val[3] = std::sqrt(std::max(((double)sqsum[3] / nz) - (mean_val[3] * mean_val[3]), 0.0));
}
return CV_HAL_ERROR_OK;
}
inline int meanStdDev_32FC1(const uchar* src_data, size_t src_step, int width, int height,
double* mean_val, double* stddev_val, uchar* mask, size_t mask_step) {
int nz = 0;
int vlmax = __riscv_vsetvlmax_e64m4();
vfloat64m4_t vec_sum = __riscv_vfmv_v_f_f64m4(0, vlmax);
vfloat64m4_t vec_sqsum = __riscv_vfmv_v_f_f64m4(0, vlmax);
src_step /= sizeof(float);
if (mask) {
for (int i = 0; i < height; ++i) {
const float* src_row0 = reinterpret_cast<const float*>(src_data) + i * src_step;
const uchar* mask_row = mask + i * mask_step;
int j = 0, vl;
for ( ; j < width; j += vl) {
vl = __riscv_vsetvl_e32m2(width - j);
auto vec_pixel = __riscv_vle32_v_f32m2(src_row0 + j, vl);
auto vmask_u8 = __riscv_vle8_v_u8mf2(mask_row + j, vl);
auto vmask_u32 = __riscv_vzext_vf4(vmask_u8, vl);
auto vmask = __riscv_vmseq_vx_u32m2_b16(vmask_u32, 1, vl);
vec_sum = __riscv_vfwadd_wv_f64m4_tumu(vmask, vec_sum, vec_sum, vec_pixel, vl);
vec_sqsum = __riscv_vfwmacc_vv_f64m4_tumu(vmask, vec_sqsum, vec_pixel, vec_pixel, vl);
nz += __riscv_vcpop_m_b16(vmask, vl);
}
}
} else {
for (int i = 0; i < height; i++) {
const float* src_row0 = reinterpret_cast<const float*>(src_data) + i * src_step;
int j = 0, vl;
for ( ; j < width; j += vl) {
vl = __riscv_vsetvl_e32m2(width - j);
auto vec_pixel = __riscv_vle32_v_f32m2(src_row0 + j, vl);
vec_sum = __riscv_vfwadd_wv_f64m4_tu(vec_sum, vec_sum, vec_pixel, vl);
vec_sqsum = __riscv_vfwmacc_vv_f64m4_tu(vec_sqsum, vec_pixel, vec_pixel, vl);
}
}
nz = height * width;
}
if (nz == 0) {
if (mean_val) *mean_val = 0.0;
if (stddev_val) *stddev_val = 0.0;
return CV_HAL_ERROR_OK;
}
auto zero = __riscv_vfmv_v_f_f64m1(0, vlmax);
auto vec_red = __riscv_vfmv_v_f_f64m1(0, vlmax);
auto vec_reddev = __riscv_vfmv_v_f_f64m1(0, vlmax);
vec_red = __riscv_vfredusum(vec_sum, zero, vlmax);
vec_reddev = __riscv_vfredusum(vec_sqsum, zero, vlmax);
double sum = __riscv_vfmv_f(vec_red);
double mean = sum / nz;
if (mean_val) {
*mean_val = mean;
}
if (stddev_val) {
double sqsum = __riscv_vfmv_f(vec_reddev);
double variance = std::max((sqsum / nz) - (mean * mean), 0.0);
double stddev = std::sqrt(variance);
*stddev_val = stddev;
}
return CV_HAL_ERROR_OK;
}
}}
#endif

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@@ -1,397 +0,0 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_HAL_RVV_MERGE_HPP_INCLUDED
#define OPENCV_HAL_RVV_MERGE_HPP_INCLUDED
#include <riscv_vector.h>
namespace cv { namespace cv_hal_rvv {
#undef cv_hal_merge8u
#define cv_hal_merge8u cv::cv_hal_rvv::merge8u
#undef cv_hal_merge16u
#define cv_hal_merge16u cv::cv_hal_rvv::merge16u
#undef cv_hal_merge32s
#define cv_hal_merge32s cv::cv_hal_rvv::merge32s
#undef cv_hal_merge64s
#define cv_hal_merge64s cv::cv_hal_rvv::merge64s
#if defined __GNUC__
__attribute__((optimize("no-tree-vectorize")))
#endif
inline int merge8u(const uchar** src, uchar* dst, int len, int cn ) {
int k = cn % 4 ? cn % 4 : 4;
int i = 0;
int vl = __riscv_vsetvlmax_e8m1();
if( k == 1 )
{
const uchar* src0 = src[0];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle8_v_u8m1(src0 + i, vl);
__riscv_vsse8_v_u8m1(dst + i*cn, sizeof(uchar)*cn, a, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++)
dst[i*cn] = src0[i];
}
else if( k == 2 )
{
const uchar *src0 = src[0], *src1 = src[1];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle8_v_u8m1(src0 + i, vl);
auto b = __riscv_vle8_v_u8m1(src1 + i, vl);
__riscv_vsse8_v_u8m1(dst + i*cn, sizeof(uchar)*cn, a, vl);
__riscv_vsse8_v_u8m1(dst + i*cn + 1, sizeof(uchar)*cn, b, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[i*cn] = src0[i];
dst[i*cn+1] = src1[i];
}
}
else if( k == 3 )
{
const uchar *src0 = src[0], *src1 = src[1], *src2 = src[2];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle8_v_u8m1(src0 + i, vl);
auto b = __riscv_vle8_v_u8m1(src1 + i, vl);
auto c = __riscv_vle8_v_u8m1(src2 + i, vl);
__riscv_vsse8_v_u8m1(dst + i*cn, sizeof(uchar)*cn, a, vl);
__riscv_vsse8_v_u8m1(dst + i*cn + 1, sizeof(uchar)*cn, b, vl);
__riscv_vsse8_v_u8m1(dst + i*cn + 2, sizeof(uchar)*cn, c, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[i*cn] = src0[i];
dst[i*cn+1] = src1[i];
dst[i*cn+2] = src2[i];
}
}
else
{
const uchar *src0 = src[0], *src1 = src[1], *src2 = src[2], *src3 = src[3];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle8_v_u8m1(src0 + i, vl);
auto b = __riscv_vle8_v_u8m1(src1 + i, vl);
auto c = __riscv_vle8_v_u8m1(src2 + i, vl);
auto d = __riscv_vle8_v_u8m1(src3 + i, vl);
__riscv_vsse8_v_u8m1(dst + i*cn, sizeof(uchar)*cn, a, vl);
__riscv_vsse8_v_u8m1(dst + i*cn + 1, sizeof(uchar)*cn, b, vl);
__riscv_vsse8_v_u8m1(dst + i*cn + 2, sizeof(uchar)*cn, c, vl);
__riscv_vsse8_v_u8m1(dst + i*cn + 3, sizeof(uchar)*cn, d, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[i*cn] = src0[i];
dst[i*cn+1] = src1[i];
dst[i*cn+2] = src2[i];
dst[i*cn+3] = src3[i];
}
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; k < cn; k += 4 )
{
const uchar *src0 = src[k], *src1 = src[k+1], *src2 = src[k+2], *src3 = src[k+3];
i = 0;
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle8_v_u8m1(src0 + i, vl);
auto b = __riscv_vle8_v_u8m1(src1 + i, vl);
auto c = __riscv_vle8_v_u8m1(src2 + i, vl);
auto d = __riscv_vle8_v_u8m1(src3 + i, vl);
__riscv_vsse8_v_u8m1(dst + k+i*cn, sizeof(uchar)*cn, a, vl);
__riscv_vsse8_v_u8m1(dst + k+i*cn + 1, sizeof(uchar)*cn, b, vl);
__riscv_vsse8_v_u8m1(dst + k+i*cn + 2, sizeof(uchar)*cn, c, vl);
__riscv_vsse8_v_u8m1(dst + k+i*cn + 3, sizeof(uchar)*cn, d, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[k+i*cn] = src0[i];
dst[k+i*cn+1] = src1[i];
dst[k+i*cn+2] = src2[i];
dst[k+i*cn+3] = src3[i];
}
}
return CV_HAL_ERROR_OK;
}
#if defined __GNUC__
__attribute__((optimize("no-tree-vectorize")))
#endif
inline int merge16u(const ushort** src, ushort* dst, int len, int cn ) {
int k = cn % 4 ? cn % 4 : 4;
int i = 0;
int vl = __riscv_vsetvlmax_e16m1();
if( k == 1 )
{
const ushort* src0 = src[0];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle16_v_u16m1(src0 + i, vl);
__riscv_vsse16_v_u16m1(dst + i*cn, sizeof(ushort)*cn, a, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++)
dst[i*cn] = src0[i];
}
else if( k == 2 )
{
const ushort *src0 = src[0], *src1 = src[1];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle16_v_u16m1(src0 + i, vl);
auto b = __riscv_vle16_v_u16m1(src1 + i, vl);
__riscv_vsse16_v_u16m1(dst + i*cn, sizeof(ushort)*cn, a, vl);
__riscv_vsse16_v_u16m1(dst + i*cn + 1, sizeof(ushort)*cn, b, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[i*cn] = src0[i];
dst[i*cn+1] = src1[i];
}
}
else if( k == 3 )
{
const ushort *src0 = src[0], *src1 = src[1], *src2 = src[2];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle16_v_u16m1(src0 + i, vl);
auto b = __riscv_vle16_v_u16m1(src1 + i, vl);
auto c = __riscv_vle16_v_u16m1(src2 + i, vl);
__riscv_vsse16_v_u16m1(dst + i*cn, sizeof(ushort)*cn, a, vl);
__riscv_vsse16_v_u16m1(dst + i*cn + 1, sizeof(ushort)*cn, b, vl);
__riscv_vsse16_v_u16m1(dst + i*cn + 2, sizeof(ushort)*cn, c, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[i*cn] = src0[i];
dst[i*cn+1] = src1[i];
dst[i*cn+2] = src2[i];
}
}
else
{
const ushort *src0 = src[0], *src1 = src[1], *src2 = src[2], *src3 = src[3];
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle16_v_u16m1(src0 + i, vl);
auto b = __riscv_vle16_v_u16m1(src1 + i, vl);
auto c = __riscv_vle16_v_u16m1(src2 + i, vl);
auto d = __riscv_vle16_v_u16m1(src3 + i, vl);
__riscv_vsse16_v_u16m1(dst + i*cn, sizeof(ushort)*cn, a, vl);
__riscv_vsse16_v_u16m1(dst + i*cn + 1, sizeof(ushort)*cn, b, vl);
__riscv_vsse16_v_u16m1(dst + i*cn + 2, sizeof(ushort)*cn, c, vl);
__riscv_vsse16_v_u16m1(dst + i*cn + 3, sizeof(ushort)*cn, d, vl);
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++ )
{
dst[i*cn] = src0[i];
dst[i*cn+1] = src1[i];
dst[i*cn+2] = src2[i];
dst[i*cn+3] = src3[i];
}
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; k < cn; k += 4 )
{
const uint16_t *src0 = src[k], *src1 = src[k+1], *src2 = src[k+2], *src3 = src[k+3];
i = 0;
for( ; i <= len - vl; i += vl)
{
auto a = __riscv_vle16_v_u16m1(src0 + i, vl);
auto b = __riscv_vle16_v_u16m1(src1 + i, vl);
auto c = __riscv_vle16_v_u16m1(src2 + i, vl);
auto d = __riscv_vle16_v_u16m1(src3 + i, vl);
__riscv_vsse16_v_u16m1(dst + k+i*cn, sizeof(ushort)*cn, a, vl);
__riscv_vsse16_v_u16m1(dst + k+i*cn + 1, sizeof(ushort)*cn, b, vl);
__riscv_vsse16_v_u16m1(dst + k+i*cn + 2, sizeof(ushort)*cn, c, vl);
__riscv_vsse16_v_u16m1(dst + k+i*cn + 3, sizeof(ushort)*cn, d, vl);
}
for( ; i < len; i++ )
{
dst[k+i*cn] = src0[i];
dst[k+i*cn+1] = src1[i];
dst[k+i*cn+2] = src2[i];
dst[k+i*cn+3] = src3[i];
}
}
return CV_HAL_ERROR_OK;
}
#if defined __GNUC__
__attribute__((optimize("no-tree-vectorize")))
#endif
inline int merge32s(const int** src, int* dst, int len, int cn ) {
int k = cn % 4 ? cn % 4 : 4;
int i, j;
if( k == 1 )
{
const int* src0 = src[0];
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( i = j = 0; i < len; i++, j += cn )
dst[j] = src0[i];
}
else if( k == 2 )
{
const int *src0 = src[0], *src1 = src[1];
i = j = 0;
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++, j += cn )
{
dst[j] = src0[i];
dst[j+1] = src1[i];
}
}
else if( k == 3 )
{
const int *src0 = src[0], *src1 = src[1], *src2 = src[2];
i = j = 0;
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++, j += cn )
{
dst[j] = src0[i];
dst[j+1] = src1[i];
dst[j+2] = src2[i];
}
}
else
{
const int *src0 = src[0], *src1 = src[1], *src2 = src[2], *src3 = src[3];
i = j = 0;
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++, j += cn )
{
dst[j] = src0[i]; dst[j+1] = src1[i];
dst[j+2] = src2[i]; dst[j+3] = src3[i];
}
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; k < cn; k += 4 )
{
const int *src0 = src[k], *src1 = src[k+1], *src2 = src[k+2], *src3 = src[k+3];
for( i = 0, j = k; i < len; i++, j += cn )
{
dst[j] = src0[i]; dst[j+1] = src1[i];
dst[j+2] = src2[i]; dst[j+3] = src3[i];
}
}
return CV_HAL_ERROR_OK;
}
#if defined __GNUC__
__attribute__((optimize("no-tree-vectorize")))
#endif
inline int merge64s(const int64** src, int64* dst, int len, int cn ) {
int k = cn % 4 ? cn % 4 : 4;
int i, j;
if( k == 1 )
{
const int64* src0 = src[0];
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( i = j = 0; i < len; i++, j += cn )
dst[j] = src0[i];
}
else if( k == 2 )
{
const int64 *src0 = src[0], *src1 = src[1];
i = j = 0;
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++, j += cn )
{
dst[j] = src0[i];
dst[j+1] = src1[i];
}
}
else if( k == 3 )
{
const int64 *src0 = src[0], *src1 = src[1], *src2 = src[2];
i = j = 0;
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++, j += cn )
{
dst[j] = src0[i];
dst[j+1] = src1[i];
dst[j+2] = src2[i];
}
}
else
{
const int64 *src0 = src[0], *src1 = src[1], *src2 = src[2], *src3 = src[3];
i = j = 0;
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; i < len; i++, j += cn )
{
dst[j] = src0[i]; dst[j+1] = src1[i];
dst[j+2] = src2[i]; dst[j+3] = src3[i];
}
}
#if defined(__clang__)
#pragma clang loop vectorize(disable)
#endif
for( ; k < cn; k += 4 )
{
const int64 *src0 = src[k], *src1 = src[k+1], *src2 = src[k+2], *src3 = src[k+3];
for( i = 0, j = k; i < len; i++, j += cn )
{
dst[j] = src0[i]; dst[j+1] = src1[i];
dst[j+2] = src2[i]; dst[j+3] = src3[i];
}
}
return CV_HAL_ERROR_OK;
}
}}
#endif

View File

@@ -1,109 +0,0 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_HAL_RVV_071_HPP_INCLUDED
#define OPENCV_HAL_RVV_071_HPP_INCLUDED
#include <riscv_vector.h>
#include <limits>
namespace cv { namespace cv_hal_rvv {
#undef cv_hal_cvtBGRtoBGR
#define cv_hal_cvtBGRtoBGR cv::cv_hal_rvv::cvtBGRtoBGR
static const unsigned char index_array_32 [32]
{ 2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15, 18, 17, 16, 19, 22, 21, 20, 23, 26, 25, 24, 27, 30, 29, 28, 31 };
static const unsigned char index_array_24 [24]
{ 2, 1, 0, 5, 4, 3, 8, 7, 6, 11, 10, 9, 14, 13, 12, 17, 16, 15, 20, 19, 18, 23, 22, 21 };
static void vBGRtoBGR(const unsigned char* src, unsigned char * dst, const unsigned char * index, int n, int scn, int dcn, int vsize_pixels, const int vsize)
{
vuint8m2_t vec_index = vle8_v_u8m2(index, vsize);
int i = 0;
for ( ; i <= n-vsize; i += vsize_pixels, src += vsize, dst += vsize)
{
vuint8m2_t vec_src = vle8_v_u8m2(src, vsize);
vuint8m2_t vec_dst = vrgather_vv_u8m2(vec_src, vec_index, vsize);
vse8_v_u8m2(dst, vec_dst, vsize);
}
for ( ; i < n; i++, src += scn, dst += dcn )
{
unsigned char t0 = src[0], t1 = src[1], t2 = src[2];
dst[2] = t0;
dst[1] = t1;
dst[0] = t2;
if(dcn == 4)
{
unsigned char d = src[3];
dst[3] = d;
}
}
}
static void sBGRtoBGR(const unsigned char* src, unsigned char * dst, int n, int scn, int dcn, int bi)
{
for (int i = 0; i < n; i++, src += scn, dst += dcn)
{
unsigned char t0 = src[0], t1 = src[1], t2 = src[2];
dst[bi ] = t0;
dst[1] = t1;
dst[bi^2] = t2;
if(dcn == 4)
{
unsigned char d = scn == 4 ? src[3] : std::numeric_limits<unsigned char>::max();
dst[3] = d;
}
}
}
static int cvtBGRtoBGR(const unsigned char * src_data, size_t src_step, unsigned char * dst_data, size_t dst_step, int width, int height, int depth, int scn, int dcn, bool swapBlue)
{
if (depth != CV_8U)
{
return CV_HAL_ERROR_NOT_IMPLEMENTED;
}
const int blueIdx = swapBlue ? 2 : 0;
if (scn == dcn)
{
if (!swapBlue)
{
return CV_HAL_ERROR_NOT_IMPLEMENTED;
}
const int vsize_pixels = 8;
if (scn == 4)
{
for (int i = 0; i < height; i++, src_data += src_step, dst_data += dst_step)
{
vBGRtoBGR(src_data, dst_data, index_array_32, width, scn, dcn, vsize_pixels, 32);
}
}
else
{
for (int i = 0; i < height; i++, src_data += src_step, dst_data += dst_step)
{
vBGRtoBGR(src_data, dst_data, index_array_24, width, scn, dcn, vsize_pixels, 24);
}
}
}
else
{
for (int i = 0; i < height; i++, src_data += src_step, dst_data += dst_step)
sBGRtoBGR(src_data, dst_data, width, scn, dcn, blueIdx);
}
return CV_HAL_ERROR_OK;
}
}}
#endif

View File

@@ -10,7 +10,7 @@ if(HAVE_IPP_ICV)
add_definitions(-DICV_BASE)
endif()
file(GLOB lib_srcs ${IPP_IW_PATH}/src/*.c ${IPP_IW_PATH}/src/*.cpp)
file(GLOB lib_srcs ${IPP_IW_PATH}/src/*.c)
file(GLOB lib_hdrs ${IPP_IW_PATH}/include/*.h ${IPP_IW_PATH}/include/iw/*.h ${IPP_IW_PATH}/include/iw++/*.hpp)
# ----------------------------------------------------------------------------------

View File

@@ -2,33 +2,32 @@ function(download_ippicv root_var)
set(${root_var} "" PARENT_SCOPE)
# Commit SHA in the opencv_3rdparty repo
set(IPPICV_COMMIT "7f55c0c26be418d494615afca15218566775c725")
set(IPPICV_COMMIT "1224f78da6684df04397ac0f40c961ed37f79ccb")
# Define actual ICV versions
if(APPLE)
set(IPPICV_COMMIT "0cc4aa06bf2bef4b05d237c69a5a96b9cd0cb85a")
set(OPENCV_ICV_PLATFORM "macosx")
set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_mac")
set(OPENCV_ICV_NAME "ippicv_2021.9.1_mac_intel64_20230919_general.tgz")
set(OPENCV_ICV_HASH "14f01c5a4780bfae9dde9b0aaf5e56fc")
set(OPENCV_ICV_NAME "ippicv_2021.8_mac_intel64_20230330_general.tgz")
set(OPENCV_ICV_HASH "d2b234a86af1b616958619a4560356d9")
elseif((UNIX AND NOT ANDROID) OR (UNIX AND ANDROID_ABI MATCHES "x86"))
set(OPENCV_ICV_PLATFORM "linux")
set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_lnx")
if(X86_64)
set(OPENCV_ICV_NAME "ippicv_2021.12.0_lnx_intel64_20240425_general.tgz")
set(OPENCV_ICV_HASH "d06e6d44ece88f7f17a6cd9216761186")
set(OPENCV_ICV_NAME "ippicv_2021.8_lnx_intel64_20230330_general.tgz")
set(OPENCV_ICV_HASH "43219bdc7e3805adcbe3a1e2f1f3ef3b")
else()
set(OPENCV_ICV_NAME "ippicv_2021.12.0_lnx_ia32_20240425_general.tgz")
set(OPENCV_ICV_HASH "85ffa2b9ed7802b93c23fa27b0097d36")
set(OPENCV_ICV_NAME "ippicv_2021.8_lnx_ia32_20230330_general.tgz")
set(OPENCV_ICV_HASH "165875443d72faa3fd2146869da90d07")
endif()
elseif(WIN32 AND NOT ARM)
set(OPENCV_ICV_PLATFORM "windows")
set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_win")
if(X86_64)
set(OPENCV_ICV_NAME "ippicv_2021.12.0_win_intel64_20240425_general.zip")
set(OPENCV_ICV_HASH "402ff8c6b4986738fed71c44e1ce665d")
set(OPENCV_ICV_NAME "ippicv_2021.8_win_intel64_20230330_general.zip")
set(OPENCV_ICV_HASH "71e4f58de939f0348ec7fb58ffb17dbf")
else()
set(OPENCV_ICV_NAME "ippicv_2021.12.0_win_ia32_20240425_general.zip")
set(OPENCV_ICV_HASH "8b1d2a23957d57624d0de8f2a5cae5f1")
set(OPENCV_ICV_NAME "ippicv_2021.8_win_ia32_20230330_general.zip")
set(OPENCV_ICV_HASH "57fd4648cfe64eae9e2ad9d50173a553")
endif()
else()
return()

View File

@@ -1,11 +0,0 @@
project(kleidicv_hal)
if(HAVE_KLEIDICV)
option(KLEIDICV_ENABLE_SME2 "" OFF) # not compatible with some CLang versions in NDK
include("${KLEIDICV_SOURCE_PATH}/adapters/opencv/CMakeLists.txt")
# HACK to suppress adapters/opencv/kleidicv_hal.cpp:343:12: warning: unused function 'from_opencv' [-Wunused-function]
target_compile_options( kleidicv_hal PRIVATE
$<TARGET_PROPERTY:kleidicv,COMPILE_OPTIONS>
"-Wno-old-style-cast" "-Wno-unused-function"
)
endif()

View File

@@ -1,21 +0,0 @@
function(download_kleidicv root_var)
set(${root_var} "" PARENT_SCOPE)
ocv_update(KLEIDICV_SRC_COMMIT "0.3.0")
ocv_update(KLEIDICV_SRC_HASH "51a77b0185c2bac2a968a2163869b1ed")
set(THE_ROOT "${OpenCV_BINARY_DIR}/3rdparty/kleidicv")
ocv_download(FILENAME "kleidicv-${KLEIDICV_SRC_COMMIT}.tar.gz"
HASH ${KLEIDICV_SRC_HASH}
URL
"${OPENCV_KLEIDICV_URL}"
"$ENV{OPENCV_KLEIDICV_URL}"
"https://gitlab.arm.com/kleidi/kleidicv/-/archive/${KLEIDICV_SRC_COMMIT}/"
DESTINATION_DIR ${THE_ROOT}
ID KLEIDICV
STATUS res
UNPACK RELATIVE_URL)
if(res)
set(${root_var} "${OpenCV_BINARY_DIR}/3rdparty/kleidicv/kleidicv-${KLEIDICV_SRC_COMMIT}" PARENT_SCOPE)
endif()
endfunction()

View File

@@ -889,7 +889,7 @@ int jas_stream_copy(jas_stream_t *out, jas_stream_t *in, int n)
while (all || m > 0) {
if ((c = jas_stream_getc_macro(in)) == EOF) {
/* The next character of input could not be read. */
/* Return with an error if an I/O error occurred
/* Return with an error if an I/O error occured
(not including EOF) or if an explicit copy count
was specified. */
return (!all || jas_stream_error(in)) ? (-1) : 0;

View File

@@ -100,7 +100,7 @@
#define JPC_BITSTREAM_NOCLOSE 0x01
/* End of file has been reached while reading. */
#define JPC_BITSTREAM_EOF 0x02
/* An I/O error has occurerd. */
/* An I/O error has occured. */
#define JPC_BITSTREAM_ERR 0x04
/******************************************************************************\

View File

@@ -1,43 +1,12 @@
project(${JPEG_LIBRARY} C)
macro(boolean_number var)
if(${var})
set(${var} 1 ${ARGN})
else()
set(${var} 0 ${ARGN})
endif()
endmacro()
ocv_warnings_disable(CMAKE_C_FLAGS -Wunused-parameter -Wsign-compare -Wshorten-64-to-32 -Wimplicit-fallthrough)
if(APPLE)
ocv_warnings_disable(CMAKE_C_FLAGS -Wunused-variable) # NEON flags are not used on Mac
endif()
if(CV_GCC AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13)
# src/jchuff.c:1042:22: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
ocv_warnings_disable(CMAKE_C_FLAGS -Wstringop-overflow)
endif()
set(VERSION 3.0.3)
set(COPYRIGHT_YEAR "1991-2024")
string(REPLACE "." ";" VERSION_TRIPLET ${VERSION})
list(GET VERSION_TRIPLET 0 VERSION_MAJOR)
list(GET VERSION_TRIPLET 1 VERSION_MINOR)
list(GET VERSION_TRIPLET 2 VERSION_REVISION)
function(pad_number NUMBER OUTPUT_LEN)
string(LENGTH "${${NUMBER}}" INPUT_LEN)
if(INPUT_LEN LESS OUTPUT_LEN)
math(EXPR ZEROES "${OUTPUT_LEN} - ${INPUT_LEN} - 1")
set(NUM ${${NUMBER}})
foreach(C RANGE ${ZEROES})
set(NUM "0${NUM}")
endforeach()
set(${NUMBER} ${NUM} PARENT_SCOPE)
endif()
endfunction()
pad_number(VERSION_MINOR 3)
pad_number(VERSION_REVISION 3)
set(LIBJPEG_TURBO_VERSION_NUMBER ${VERSION_MAJOR}${VERSION_MINOR}${VERSION_REVISION})
set(VERSION_MAJOR 2)
set(VERSION_MINOR 1)
set(VERSION_REVISION 3)
set(VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REVISION})
set(LIBJPEG_TURBO_VERSION_NUMBER 2001003)
string(TIMESTAMP BUILD "opencv-${OPENCV_VERSION}-libjpeg-turbo")
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
@@ -47,7 +16,7 @@ endif()
message(STATUS "libjpeg-turbo: VERSION = ${VERSION}, BUILD = ${BUILD}")
math(EXPR BITS "${CMAKE_SIZEOF_VOID_P} * 8")
string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" CMAKE_SYSTEM_PROCESSOR_LC)
string(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} CMAKE_SYSTEM_PROCESSOR_LC)
if(CMAKE_SYSTEM_PROCESSOR_LC MATCHES "x86_64" OR
CMAKE_SYSTEM_PROCESSOR_LC MATCHES "amd64" OR
@@ -87,7 +56,8 @@ if(MSVC_IDE AND CMAKE_GENERATOR_PLATFORM MATCHES "arm64")
set(CPU_TYPE arm64)
endif()
OCV_OPTION(ENABLE_LIBJPEG_TURBO_SIMD "Include SIMD extensions for libjpeg-turbo, if available for this platform" (NOT CV_DISABLE_OPTIMIZATION))
OCV_OPTION(ENABLE_LIBJPEG_TURBO_SIMD "Include SIMD extensions for libjpeg-turbo, if available for this platform" (NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF BUILD_JPEG)
option(WITH_ARITH_ENC "Include arithmetic encoding support when emulating the libjpeg v6b API/ABI" TRUE)
option(WITH_ARITH_DEC "Include arithmetic decoding support when emulating the libjpeg v6b API/ABI" TRUE)
set(WITH_SIMD 1)
@@ -97,8 +67,8 @@ include(CheckCSourceCompiles)
include(CheckIncludeFiles)
include(CheckTypeSize)
check_type_size("size_t" SIZE_T)
check_type_size("unsigned long" UNSIGNED_LONG)
check_type_size("size_t" SIZEOF_SIZE_T)
check_type_size("unsigned long" SIZEOF_UNSIGNED_LONG)
if(SIZEOF_SIZE_T EQUAL SIZEOF_UNSIGNED_LONG)
check_c_source_compiles("int main(int argc, char **argv) { unsigned long a = argc; return __builtin_ctzl(a); }"
@@ -134,34 +104,33 @@ if(WITH_ARITH_DEC)
set(D_ARITH_CODING_SUPPORTED 1)
endif()
set(JPEG_LIB_VERSION 70)
set(JPEG_LIB_VERSION 62)
# OpenCV
set(JPEG_LIB_VERSION "${VERSION}-${JPEG_LIB_VERSION}" PARENT_SCOPE)
set(THREAD_LOCAL "") # WITH_TURBOJPEG is not used
add_definitions(-DNO_GETENV -DNO_PUTENV)
if(MSVC)
add_definitions(-W3 -wd4996 -wd4018)
endif()
if(WIN32)
configure_file(jconfig.h.win.in jconfig.h)
else()
configure_file(jconfig.h.in jconfig.h)
endif()
configure_file(jconfigint.h.in jconfigint.h)
include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src)
set(JPEG16_SOURCES jcapistd.c jccolor.c jcdiffct.c jclossls.c jcmainct.c
jcprepct.c jcsample.c jdapistd.c jdcolor.c jddiffct.c jdlossls.c jdmainct.c
jdpostct.c jdsample.c jutils.c)
set(JPEG12_SOURCES ${JPEG16_SOURCES} jccoefct.c jcdctmgr.c jdcoefct.c
jddctmgr.c jdmerge.c jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c
jidctred.c jquant1.c jquant2.c)
set(JPEG_SOURCES ${JPEG12_SOURCES} jcapimin.c jchuff.c jcicc.c jcinit.c
jclhuff.c jcmarker.c jcmaster.c jcomapi.c jcparam.c jcphuff.c jctrans.c
jdapimin.c jdatadst.c jdatasrc.c jdhuff.c jdicc.c jdinput.c jdlhuff.c
jdmarker.c jdmaster.c jdphuff.c jdtrans.c jerror.c jfdctflt.c jmemmgr.c
jmemnobs.c jpeg_nbits.c)
set(JPEG_SOURCES jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c
jcicc.c jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c
jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c jdatadst.c
jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c jdicc.c jdinput.c
jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c jdpostct.c jdsample.c
jdtrans.c jerror.c jfdctflt.c jfdctfst.c jfdctint.c jidctflt.c jidctfst.c
jidctint.c jidctred.c jquant1.c jquant2.c jutils.c jmemmgr.c jmemnobs.c)
if(WITH_ARITH_ENC OR WITH_ARITH_DEC)
set(JPEG_SOURCES ${JPEG_SOURCES} jaricom.c)
@@ -175,7 +144,7 @@ if(WITH_ARITH_DEC)
set(JPEG_SOURCES ${JPEG_SOURCES} jdarith.c)
endif()
if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
# Use the maximum optimization level for release builds
foreach(var CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_RELWITHDEBINFO)
if(${var} MATCHES "-O2")
@@ -198,10 +167,6 @@ if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
endif()
endif()
include(CheckTypeSize)
check_type_size("size_t" SIZE_T)
check_type_size("unsigned long" UNSIGNED_LONG)
if(ENABLE_LIBJPEG_TURBO_SIMD)
add_subdirectory(src/simd)
if(NEON_INTRINSICS)
@@ -217,28 +182,19 @@ if(WITH_SIMD)
if(MSVC_IDE OR XCODE)
set_source_files_properties(${SIMD_OBJS} PROPERTIES GENERATED 1)
endif()
set(SIMD_TARGET_OBJECTS $<TARGET_OBJECTS:simd>)
else()
add_library(jsimd OBJECT src/jsimd_none.c)
set_target_properties(jsimd PROPERTIES FOLDER "3rdparty")
if(NOT WIN32 AND (CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED))
set_target_properties(jsimd PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
endif()
configure_file(jversion.h.in jversion.h)
configure_file(jconfig.h.in jconfig.h)
configure_file(jconfigint.h.in jconfigint.h)
ocv_list_add_prefix(JPEG16_SOURCES src/)
ocv_list_add_prefix(JPEG12_SOURCES src/)
ocv_list_add_prefix(JPEG_SOURCES src/)
set(JPEG_SOURCES ${JPEG_SOURCES} ${SIMD_OBJS})
add_library(jpeg12-static OBJECT ${JPEG12_SOURCES})
set_property(TARGET jpeg12-static PROPERTY COMPILE_FLAGS
"-DBITS_IN_JSAMPLE=12")
add_library(jpeg16-static OBJECT ${JPEG16_SOURCES})
set_property(TARGET jpeg16-static PROPERTY COMPILE_FLAGS
"-DBITS_IN_JSAMPLE=16")
add_library(${JPEG_LIBRARY} STATIC ${JPEG_SOURCES} ${SIMD_TARGET_OBJECTS}
${SIMD_OBJS} $<TARGET_OBJECTS:jpeg12-static>
$<TARGET_OBJECTS:jpeg16-static>)
add_library(${JPEG_LIBRARY} STATIC ${OPENCV_3RDPARTY_EXCLUDE_FROM_ALL} ${JPEG_SOURCES} $<TARGET_OBJECTS:jsimd> ${SIMD_OBJS})
set_target_properties(${JPEG_LIBRARY}
PROPERTIES OUTPUT_NAME ${JPEG_LIBRARY}
@@ -249,9 +205,7 @@ set_target_properties(${JPEG_LIBRARY}
)
if(ENABLE_SOLUTION_FOLDERS)
set_target_properties(${JPEG_LIBRARY} PROPERTIES FOLDER "3rdparty/jpeg")
set_target_properties(jpeg12-static PROPERTIES FOLDER "3rdparty/jpeg")
set_target_properties(jpeg16-static PROPERTIES FOLDER "3rdparty/jpeg")
set_target_properties(${JPEG_LIBRARY} PROPERTIES FOLDER "3rdparty")
endif()
if(NOT BUILD_SHARED_LIBS)

View File

@@ -1,33 +1,30 @@
libjpeg-turbo Licenses
======================
libjpeg-turbo is covered by two compatible BSD-style open source licenses:
libjpeg-turbo is covered by three compatible BSD-style open source licenses:
- The IJG (Independent JPEG Group) License, which is listed in
[README.ijg](README.ijg)
This license applies to the libjpeg API library and associated programs,
including any code inherited from libjpeg and any modifications to that
code. Note that the libjpeg-turbo SIMD source code bears the
[zlib License](https://opensource.org/licenses/Zlib), but in the context of
the overall libjpeg API library, the terms of the zlib License are subsumed
by the terms of the IJG License.
This license applies to the libjpeg API library and associated programs
(any code inherited from libjpeg, and any modifications to that code.)
- The Modified (3-clause) BSD License, which is listed below
This license applies to the TurboJPEG API library and associated programs, as
well as the build system. Note that the TurboJPEG API library wraps the
libjpeg API library, so in the context of the overall TurboJPEG API library,
both the terms of the IJG License and the terms of the Modified (3-clause)
BSD License apply.
This license covers the TurboJPEG API library and associated programs, as
well as the build system.
- The [zlib License](https://opensource.org/licenses/Zlib)
This license is a subset of the other two, and it covers the libjpeg-turbo
SIMD extensions.
Complying with the libjpeg-turbo Licenses
=========================================
This section provides a roll-up of the libjpeg-turbo licensing terms, to the
best of our understanding. This is not a license in and of itself. It is
intended solely for clarification.
best of our understanding.
1. If you are distributing a modified version of the libjpeg-turbo source,
then:
@@ -41,7 +38,7 @@ intended solely for clarification.
- Clauses 1 and 3 of the zlib License
2. You must add your own copyright notice to the header of each source
file you modified, so others can tell that you modified that file. (If
file you modified, so others can tell that you modified that file (if
there is not an existing copyright header in that file, then you can
simply add a notice stating that you modified the file.)
@@ -94,7 +91,7 @@ intended solely for clarification.
The Modified (3-clause) BSD License
===================================
Copyright (C)2009-2023 D. R. Commander. All Rights Reserved.<br>
Copyright (C)2009-2022 D. R. Commander. All Rights Reserved.<br>
Copyright (C)2015 Viktor Szathmáry. All Rights Reserved.
Redistribution and use in source and binary forms, with or without
@@ -122,8 +119,8 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Why Two Licenses?
=================
Why Three Licenses?
===================
The zlib License could have been used instead of the Modified (3-clause) BSD
License, and since the IJG License effectively subsumes the distribution

View File

@@ -43,7 +43,7 @@ User documentation:
change.log Version-to-version change highlights.
Programmer and internal documentation:
libjpeg.txt How to use the JPEG library in your own programs.
example.c Sample code for calling the JPEG library.
example.txt Sample code for calling the JPEG library.
structure.txt Overview of the JPEG library's internal structure.
coderules.txt Coding style rules --- please read if you contribute code.
@@ -68,17 +68,17 @@ other abrupt features may not compress well with JPEG, and a higher JPEG
quality may have to be used to avoid visible compression artifacts with such
images.
JPEG is normally lossy, meaning that the output pixels are not necessarily
identical to the input pixels. However, on photographic content and other
"smooth" images, very good compression ratios can be obtained with no visible
compression artifacts, and extremely high compression ratios are possible if
you are willing to sacrifice image quality (by reducing the "quality" setting
in the compressor.)
JPEG is lossy, meaning that the output pixels are not necessarily identical to
the input pixels. However, on photographic content and other "smooth" images,
very good compression ratios can be obtained with no visible compression
artifacts, and extremely high compression ratios are possible if you are
willing to sacrifice image quality (by reducing the "quality" setting in the
compressor.)
This software implements JPEG baseline, extended-sequential, progressive, and
lossless compression processes. Provision is made for supporting all variants
of these processes, although some uncommon parameter settings aren't
implemented yet. We have made no provision for supporting the hierarchical
This software implements JPEG baseline, extended-sequential, and progressive
compression processes. Provision is made for supporting all variants of these
processes, although some uncommon parameter settings aren't implemented yet.
We have made no provision for supporting the hierarchical or lossless
processes defined in the standard.
We provide a set of library routines for reading and writing JPEG image files,
@@ -241,7 +241,7 @@ This software implements ITU T.81 | ISO/IEC 10918 with some extensions from
ITU T.871 | ISO/IEC 10918-5 (JPEG File Interchange Format-- see REFERENCES).
Informally, the term "JPEG image" or "JPEG file" most often refers to JFIF or
a subset thereof, but there are other formats containing the name "JPEG" that
are incompatible with the original JPEG standard or with JFIF (for instance,
are incompatible with the DCT-based JPEG standard or with JFIF (for instance,
JPEG 2000 and JPEG XR). This software therefore does not support these
formats. Indeed, one of the original reasons for developing this free software
was to help force convergence on a common, interoperable format standard for

View File

@@ -21,26 +21,7 @@ derivative of libjpeg v6b developed by Miyasaka Masaru. The TigerVNC and
VirtualGL projects made numerous enhancements to the codec in 2009, and in
early 2010, libjpeg-turbo spun off into an independent project, with the goal
of making high-speed JPEG compression/decompression technology available to a
broader range of users and developers. libjpeg-turbo is an ISO/IEC and ITU-T
reference implementation of the JPEG standard.
More information about libjpeg-turbo can be found at
<https://libjpeg-turbo.org>.
Funding
=======
libjpeg-turbo is an independent open source project, but we rely on patronage
and funded development in order to maintain that independence. The easiest way
to ensure that libjpeg-turbo remains community-focused and free of any one
organization's agenda is to
[sponsor our project through GitHub](https://github.com/sponsors/libjpeg-turbo).
All sponsorship money goes directly toward funding the labor necessary to
maintain libjpeg-turbo, support the user community, and implement bug fixes and
strategically important features.
[![Sponsor libjpeg-turbo](https://img.shields.io/github/sponsors/libjpeg-turbo?label=Sponsor&logo=GitHub)](https://github.com/sponsors/libjpeg-turbo)
broader range of users and developers.
License
@@ -264,6 +245,16 @@ programs that need them, without breaking ABI compatibility for programs that
don't, and it allows those functions to be provided in the "official"
libjpeg-turbo binaries.
Those who are concerned about maintaining strict conformance with the libjpeg
v6b or v7 API can pass an argument of `-DWITH_MEM_SRCDST=0` to `cmake` prior to
building libjpeg-turbo. This will restore the pre-1.3 behavior, in which
`jpeg_mem_src()` and `jpeg_mem_dest()` are only included when emulating the
libjpeg v8 API/ABI.
On Un*x systems, including the in-memory source/destination managers changes
the dynamic library version from 62.2.0 to 62.3.0 if using libjpeg v6b API/ABI
emulation and from 7.2.0 to 7.3.0 if using libjpeg v7 API/ABI emulation.
Note that, on most Un*x systems, the dynamic linker will not look for a
function in a library until that function is actually used. Thus, if a program
is built against libjpeg-turbo 1.3+ and uses `jpeg_mem_src()` or
@@ -283,35 +274,30 @@ Mathematical Compatibility
==========================
For the most part, libjpeg-turbo should produce identical output to libjpeg
v6b. There are two exceptions:
v6b. The one exception to this is when using the floating point DCT/IDCT, in
which case the outputs of libjpeg v6b and libjpeg-turbo can differ for the
following reasons:
1. When decompressing a JPEG image that uses 4:4:0 chrominance subsampling, the
outputs of libjpeg v6b and libjpeg-turbo can differ because libjpeg-turbo
implements a "fancy" (smooth) 4:4:0 upsampling algorithm and libjpeg did not.
- The SSE/SSE2 floating point DCT implementation in libjpeg-turbo is ever so
slightly more accurate than the implementation in libjpeg v6b, but not by
any amount perceptible to human vision (generally in the range of 0.01 to
0.08 dB gain in PNSR.)
2. When using the floating point DCT/IDCT, the outputs of libjpeg v6b and
libjpeg-turbo can differ for the following reasons:
- When not using the SIMD extensions, libjpeg-turbo uses the more accurate
(and slightly faster) floating point IDCT algorithm introduced in libjpeg
v8a as opposed to the algorithm used in libjpeg v6b. It should be noted,
however, that this algorithm basically brings the accuracy of the floating
point IDCT in line with the accuracy of the accurate integer IDCT. The
floating point DCT/IDCT algorithms are mainly a legacy feature, and they do
not produce significantly more accuracy than the accurate integer algorithms
(to put numbers on this, the typical difference in PNSR between the two
algorithms is less than 0.10 dB, whereas changing the quality level by 1 in
the upper range of the quality scale is typically more like a 1.0 dB
difference.)
- The SSE/SSE2 floating point DCT implementation in libjpeg-turbo is ever
so slightly more accurate than the implementation in libjpeg v6b, but not
by any amount perceptible to human vision (generally in the range of 0.01
to 0.08 dB gain in PNSR.)
- When not using the SIMD extensions, libjpeg-turbo uses the more accurate
(and slightly faster) floating point IDCT algorithm introduced in libjpeg
v8a as opposed to the algorithm used in libjpeg v6b. It should be noted,
however, that this algorithm basically brings the accuracy of the
floating point IDCT in line with the accuracy of the accurate integer
IDCT. The floating point DCT/IDCT algorithms are mainly a legacy
feature, and they do not produce significantly more accuracy than the
accurate integer algorithms. (To put numbers on this, the typical
difference in PNSR between the two algorithms is less than 0.10 dB,
whereas changing the quality level by 1 in the upper range of the quality
scale is typically more like a 1.0 dB difference.)
- If the floating point algorithms in libjpeg-turbo are not implemented
using SIMD instructions on a particular platform, then the accuracy of
the floating point DCT/IDCT can depend on the compiler settings.
- If the floating point algorithms in libjpeg-turbo are not implemented using
SIMD instructions on a particular platform, then the accuracy of the
floating point DCT/IDCT can depend on the compiler settings.
While libjpeg-turbo does emulate the libjpeg v8 API/ABI, under the hood it is
still using the same algorithms as libjpeg v6b, so there are several specific

View File

@@ -9,52 +9,60 @@
/* libjpeg-turbo version in integer form */
#define LIBJPEG_TURBO_VERSION_NUMBER @LIBJPEG_TURBO_VERSION_NUMBER@
/* Support arithmetic encoding when using 8-bit samples */
/* Support arithmetic encoding */
#cmakedefine C_ARITH_CODING_SUPPORTED 1
/* Support arithmetic decoding when using 8-bit samples */
/* Support arithmetic decoding */
#cmakedefine D_ARITH_CODING_SUPPORTED 1
/* Support in-memory source/destination managers */
#define MEM_SRCDST_SUPPORTED 1
#cmakedefine MEM_SRCDST_SUPPORTED 1
/* Use accelerated SIMD routines when using 8-bit samples */
/* Use accelerated SIMD routines. */
#cmakedefine WITH_SIMD 1
/* This version of libjpeg-turbo supports run-time selection of data precision,
* so BITS_IN_JSAMPLE is no longer used to specify the data precision at build
* time. However, some downstream software expects the macro to be defined.
* Since 12-bit data precision is an opt-in feature that requires explicitly
* calling 12-bit-specific libjpeg API functions and using 12-bit-specific data
* types, the unmodified portion of the libjpeg API still behaves as if it were
* built for 8-bit precision, and JSAMPLE is still literally an 8-bit data
* type. Thus, it is correct to define BITS_IN_JSAMPLE to 8 here.
/*
* Define BITS_IN_JSAMPLE as either
* 8 for 8-bit sample values (the usual setting)
* 12 for 12-bit sample values
* Only 8 and 12 are legal data precisions for lossy JPEG according to the
* JPEG standard, and the IJG code does not support anything else!
* We do not support run-time selection of data precision, sorry.
*/
#ifndef BITS_IN_JSAMPLE
#define BITS_IN_JSAMPLE 8
#endif
#ifdef _WIN32
#define BITS_IN_JSAMPLE @BITS_IN_JSAMPLE@ /* use 8 or 12 */
#undef RIGHT_SHIFT_IS_UNSIGNED
/* Define to 1 if you have the <locale.h> header file. */
#cmakedefine HAVE_LOCALE_H 1
/* Define "boolean" as unsigned char, not int, per Windows custom */
#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */
typedef unsigned char boolean;
#endif
#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */
/* Define to 1 if you have the <stddef.h> header file. */
#cmakedefine HAVE_STDDEF_H 1
/* Define "INT32" as int, not long, per Windows custom */
#if !(defined(_BASETSD_H_) || defined(_BASETSD_H)) /* don't conflict if basetsd.h already read */
typedef short INT16;
typedef signed int INT32;
#endif
#define XMD_H /* prevent jmorecfg.h from redefining it */
/* Define to 1 if you have the <stdlib.h> header file. */
#cmakedefine HAVE_STDLIB_H 1
#else
/* Define if you need to include <sys/types.h> to get size_t. */
#cmakedefine NEED_SYS_TYPES_H 1
/* Define if you have BSD-like bzero and bcopy in <strings.h> rather than
memset/memcpy in <string.h>. */
#cmakedefine NEED_BSD_STRINGS 1
/* Define to 1 if the system has the type `unsigned char'. */
#cmakedefine HAVE_UNSIGNED_CHAR 1
/* Define to 1 if the system has the type `unsigned short'. */
#cmakedefine HAVE_UNSIGNED_SHORT 1
/* Compiler does not support pointers to undefined structures. */
#cmakedefine INCOMPLETE_TYPES_BROKEN 1
/* Define if your (broken) compiler shifts signed values as if they were
unsigned. */
#cmakedefine RIGHT_SHIFT_IS_UNSIGNED 1
#endif
/* Define to empty if `const' does not conform to ANSI C. */
/* #undef const */
/* Define to `unsigned int' if <sys/types.h> does not define. */
/* #undef size_t */

33
3rdparty/libjpeg-turbo/jconfig.h.win.in vendored Normal file
View File

@@ -0,0 +1,33 @@
#define JPEG_LIB_VERSION @JPEG_LIB_VERSION@
#define LIBJPEG_TURBO_VERSION @VERSION@
#define LIBJPEG_TURBO_VERSION_NUMBER @LIBJPEG_TURBO_VERSION_NUMBER@
#cmakedefine C_ARITH_CODING_SUPPORTED
#cmakedefine D_ARITH_CODING_SUPPORTED
#cmakedefine MEM_SRCDST_SUPPORTED
#cmakedefine WITH_SIMD
#define BITS_IN_JSAMPLE @BITS_IN_JSAMPLE@ /* use 8 or 12 */
#define HAVE_STDDEF_H
#define HAVE_STDLIB_H
#undef NEED_SYS_TYPES_H
#undef NEED_BSD_STRINGS
#define HAVE_UNSIGNED_CHAR
#define HAVE_UNSIGNED_SHORT
#undef INCOMPLETE_TYPES_BROKEN
#undef RIGHT_SHIFT_IS_UNSIGNED
/* Define "boolean" as unsigned char, not int, per Windows custom */
#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */
typedef unsigned char boolean;
#endif
#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */
/* Define "INT32" as int, not long, per Windows custom */
#if !(defined(_BASETSD_H_) || defined(_BASETSD_H)) /* don't conflict if basetsd.h already read */
typedef short INT16;
typedef signed int INT32;
#endif
#define XMD_H /* prevent jmorecfg.h from redefining it */

View File

@@ -1,14 +1,19 @@
/* libjpeg-turbo build number */
#define BUILD "@BUILD@"
/* How to hide global symbols. */
#define HIDDEN @HIDDEN@
/* Compiler's inline keyword */
#undef inline
/* How to obtain function inlining. */
#define INLINE @INLINE@
#ifndef INLINE
#if defined(__GNUC__)
#define INLINE inline __attribute__((always_inline))
#elif defined(_MSC_VER)
#define INLINE __forceinline
#else
#define INLINE
#endif
#endif
/* How to obtain thread-local storage */
#define THREAD_LOCAL @THREAD_LOCAL@
@@ -20,7 +25,7 @@
#define VERSION "@VERSION@"
/* The size of `size_t', as computed by sizeof. */
#define SIZEOF_SIZE_T @SIZE_T@
#define SIZEOF_SIZE_T @SIZEOF_SIZE_T@
/* Define if your compiler has __builtin_ctzl() and sizeof(unsigned long) == sizeof(size_t). */
#cmakedefine HAVE_BUILTIN_CTZL
@@ -45,32 +50,3 @@
#else
#define FALLTHROUGH
#endif
/*
* Define BITS_IN_JSAMPLE as either
* 8 for 8-bit sample values (the usual setting)
* 12 for 12-bit sample values
* Only 8 and 12 are legal data precisions for lossy JPEG according to the
* JPEG standard, and the IJG code does not support anything else!
*/
#ifndef BITS_IN_JSAMPLE
#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */
#endif
#undef C_ARITH_CODING_SUPPORTED
#undef D_ARITH_CODING_SUPPORTED
#undef WITH_SIMD
#if BITS_IN_JSAMPLE == 8
/* Support arithmetic encoding */
#cmakedefine C_ARITH_CODING_SUPPORTED 1
/* Support arithmetic decoding */
#cmakedefine D_ARITH_CODING_SUPPORTED 1
/* Use accelerated SIMD routines. */
#cmakedefine WITH_SIMD 1
#endif

View File

@@ -1,841 +0,0 @@
/*
* cjpeg.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1998, Thomas G. Lane.
* Modified 2003-2011 by Guido Vollbeding.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2013-2014, 2017, 2019-2022, 2024, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains a command-line user interface for the JPEG compressor.
* It should work on any system with Unix- or MS-DOS-style command lines.
*
* Two different command line styles are permitted, depending on the
* compile-time switch TWO_FILE_COMMANDLINE:
* cjpeg [options] inputfile outputfile
* cjpeg [options] [inputfile]
* In the second style, output is always to standard output, which you'd
* normally redirect to a file or pipe to some other program. Input is
* either from a named file or from standard input (typically redirected).
* The second style is convenient on Unix but is unhelpful on systems that
* don't support pipes. Also, you MUST use the first style if your system
* doesn't do binary I/O to stdin/stdout.
* To simplify script writing, the "-outfile" switch is provided. The syntax
* cjpeg [options] -outfile outputfile inputfile
* works regardless of which command line style is used.
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_DEPRECATE
#endif
#ifdef CJPEG_FUZZER
#define JPEG_INTERNALS
#endif
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
#include "jversion.h" /* for version message */
#include "jconfigint.h"
/* Create the add-on message string table. */
#define JMESSAGE(code, string) string,
static const char * const cdjpeg_message_table[] = {
#include "cderror.h"
NULL
};
/*
* This routine determines what format the input file is,
* and selects the appropriate input-reading module.
*
* To determine which family of input formats the file belongs to,
* we may look only at the first byte of the file, since C does not
* guarantee that more than one character can be pushed back with ungetc.
* Looking at additional bytes would require one of these approaches:
* 1) assume we can fseek() the input file (fails for piped input);
* 2) assume we can push back more than one character (works in
* some C implementations, but unportable);
* 3) provide our own buffering (breaks input readers that want to use
* stdio directly);
* or 4) don't put back the data, and modify the input_init methods to assume
* they start reading after the start of file.
* #1 is attractive for MS-DOS but is untenable on Unix.
*
* The most portable solution for file types that can't be identified by their
* first byte is to make the user tell us what they are. This is also the
* only approach for "raw" file types that contain only arbitrary values.
* We presently apply this method for Targa files. Most of the time Targa
* files start with 0x00, so we recognize that case. Potentially, however,
* a Targa file could start with any byte value (byte 0 is the length of the
* seldom-used ID field), so we provide a switch to force Targa input mode.
*/
static boolean is_targa; /* records user -targa switch */
LOCAL(cjpeg_source_ptr)
select_file_type(j_compress_ptr cinfo, FILE *infile)
{
int c;
if (is_targa) {
#ifdef TARGA_SUPPORTED
return jinit_read_targa(cinfo);
#else
ERREXIT(cinfo, JERR_TGA_NOTCOMP);
#endif
}
if ((c = getc(infile)) == EOF)
ERREXIT(cinfo, JERR_INPUT_EMPTY);
if (ungetc(c, infile) == EOF)
ERREXIT(cinfo, JERR_UNGETC_FAILED);
switch (c) {
#ifdef BMP_SUPPORTED
case 'B':
return jinit_read_bmp(cinfo, TRUE);
#endif
#ifdef GIF_SUPPORTED
case 'G':
if (cinfo->data_precision == 16) {
#ifdef C_LOSSLESS_SUPPORTED
return j16init_read_gif(cinfo);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
break;
#endif
} else if (cinfo->data_precision == 12)
return j12init_read_gif(cinfo);
else
return jinit_read_gif(cinfo);
#endif
#ifdef PPM_SUPPORTED
case 'P':
if (cinfo->data_precision == 16) {
#ifdef C_LOSSLESS_SUPPORTED
return j16init_read_ppm(cinfo);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
break;
#endif
} else if (cinfo->data_precision == 12)
return j12init_read_ppm(cinfo);
else
return jinit_read_ppm(cinfo);
#endif
#ifdef TARGA_SUPPORTED
case 0x00:
return jinit_read_targa(cinfo);
#endif
default:
ERREXIT(cinfo, JERR_UNKNOWN_FORMAT);
break;
}
return NULL; /* suppress compiler warnings */
}
/*
* Argument-parsing code.
* The switch parser is designed to be useful with DOS-style command line
* syntax, ie, intermixed switches and file names, where only the switches
* to the left of a given file name affect processing of that file.
* The main program in this file doesn't actually use this capability...
*/
static const char *progname; /* program name for error messages */
static char *icc_filename; /* for -icc switch */
static char *outfilename; /* for -outfile switch */
static boolean memdst; /* for -memdst switch */
static boolean report; /* for -report switch */
static boolean strict; /* for -strict switch */
#ifdef CJPEG_FUZZER
#include <setjmp.h>
struct my_error_mgr {
struct jpeg_error_mgr pub;
jmp_buf setjmp_buffer;
};
void my_error_exit(j_common_ptr cinfo)
{
struct my_error_mgr *myerr = (struct my_error_mgr *)cinfo->err;
longjmp(myerr->setjmp_buffer, 1);
}
static void my_emit_message_fuzzer(j_common_ptr cinfo, int msg_level)
{
if (msg_level < 0)
cinfo->err->num_warnings++;
}
#define HANDLE_ERROR() { \
if (cinfo.global_state > CSTATE_START) { \
if (memdst && outbuffer) \
(*cinfo.dest->term_destination) (&cinfo); \
jpeg_abort_compress(&cinfo); \
} \
jpeg_destroy_compress(&cinfo); \
if (input_file != stdin && input_file != NULL) \
fclose(input_file); \
if (memdst) \
free(outbuffer); \
return EXIT_FAILURE; \
}
#endif
LOCAL(void)
usage(void)
/* complain about bad command line */
{
fprintf(stderr, "usage: %s [switches] ", progname);
#ifdef TWO_FILE_COMMANDLINE
fprintf(stderr, "inputfile outputfile\n");
#else
fprintf(stderr, "[inputfile]\n");
#endif
fprintf(stderr, "Switches (names may be abbreviated):\n");
fprintf(stderr, " -quality N[,...] Compression quality (0..100; 5-95 is most useful range,\n");
fprintf(stderr, " default is 75)\n");
fprintf(stderr, " -grayscale Create monochrome JPEG file\n");
fprintf(stderr, " -rgb Create RGB JPEG file\n");
#ifdef ENTROPY_OPT_SUPPORTED
fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n");
#endif
#ifdef C_PROGRESSIVE_SUPPORTED
fprintf(stderr, " -progressive Create progressive JPEG file\n");
#endif
#ifdef TARGA_SUPPORTED
fprintf(stderr, " -targa Input file is Targa format (usually not needed)\n");
#endif
fprintf(stderr, "Switches for advanced users:\n");
fprintf(stderr, " -precision N Create JPEG file with N-bit data precision\n");
#ifdef C_LOSSLESS_SUPPORTED
fprintf(stderr, " (N is 8, 12, or 16; default is 8; if N is 16, then -lossless\n");
fprintf(stderr, " must also be specified)\n");
#else
fprintf(stderr, " (N is 8 or 12; default is 8)\n");
#endif
#ifdef C_LOSSLESS_SUPPORTED
fprintf(stderr, " -lossless psv[,Pt] Create lossless JPEG file\n");
#endif
#ifdef C_ARITH_CODING_SUPPORTED
fprintf(stderr, " -arithmetic Use arithmetic coding\n");
#endif
#ifdef DCT_ISLOW_SUPPORTED
fprintf(stderr, " -dct int Use accurate integer DCT method%s\n",
(JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
#endif
#ifdef DCT_IFAST_SUPPORTED
fprintf(stderr, " -dct fast Use less accurate integer DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
#endif
#ifdef DCT_FLOAT_SUPPORTED
fprintf(stderr, " -dct float Use floating-point DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
#endif
fprintf(stderr, " -icc FILE Embed ICC profile contained in FILE\n");
fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n");
#ifdef INPUT_SMOOTHING_SUPPORTED
fprintf(stderr, " -smooth N Smooth dithered input (N=1..100 is strength)\n");
#endif
fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n");
fprintf(stderr, " -outfile name Specify name for output file\n");
fprintf(stderr, " -memdst Compress to memory instead of file (useful for benchmarking)\n");
fprintf(stderr, " -report Report compression progress\n");
fprintf(stderr, " -strict Treat all warnings as fatal\n");
fprintf(stderr, " -verbose or -debug Emit debug output\n");
fprintf(stderr, " -version Print version information and exit\n");
fprintf(stderr, "Switches for wizards:\n");
fprintf(stderr, " -baseline Force baseline quantization tables\n");
fprintf(stderr, " -qtables FILE Use quantization tables given in FILE\n");
fprintf(stderr, " -qslots N[,...] Set component quantization tables\n");
fprintf(stderr, " -sample HxV[,...] Set component sampling factors\n");
#ifdef C_MULTISCAN_FILES_SUPPORTED
fprintf(stderr, " -scans FILE Create multi-scan JPEG per script FILE\n");
#endif
exit(EXIT_FAILURE);
}
LOCAL(int)
parse_switches(j_compress_ptr cinfo, int argc, char **argv,
int last_file_arg_seen, boolean for_real)
/* Parse optional switches.
* Returns argv[] index of first file-name argument (== argc if none).
* Any file names with indexes <= last_file_arg_seen are ignored;
* they have presumably been processed in a previous iteration.
* (Pass 0 for last_file_arg_seen on the first or only iteration.)
* for_real is FALSE on the first (dummy) pass; we may skip any expensive
* processing.
*/
{
int argn;
char *arg;
#ifdef C_LOSSLESS_SUPPORTED
int psv, pt = 0;
#endif
boolean force_baseline;
boolean simple_progressive;
char *qualityarg = NULL; /* saves -quality parm if any */
char *qtablefile = NULL; /* saves -qtables filename if any */
char *qslotsarg = NULL; /* saves -qslots parm if any */
char *samplearg = NULL; /* saves -sample parm if any */
char *scansarg = NULL; /* saves -scans parm if any */
/* Set up default JPEG parameters. */
force_baseline = FALSE; /* by default, allow 16-bit quantizers */
simple_progressive = FALSE;
is_targa = FALSE;
icc_filename = NULL;
outfilename = NULL;
memdst = FALSE;
report = FALSE;
strict = FALSE;
cinfo->err->trace_level = 0;
/* Scan command line options, adjust parameters */
for (argn = 1; argn < argc; argn++) {
arg = argv[argn];
if (*arg != '-') {
/* Not a switch, must be a file name argument */
if (argn <= last_file_arg_seen) {
outfilename = NULL; /* -outfile applies to just one input file */
continue; /* ignore this name if previously processed */
}
break; /* else done parsing switches */
}
arg++; /* advance past switch marker character */
if (keymatch(arg, "arithmetic", 1)) {
/* Use arithmetic coding. */
#ifdef C_ARITH_CODING_SUPPORTED
cinfo->arith_code = TRUE;
#else
fprintf(stderr, "%s: sorry, arithmetic coding not supported\n",
progname);
exit(EXIT_FAILURE);
#endif
} else if (keymatch(arg, "baseline", 1)) {
/* Force baseline-compatible output (8-bit quantizer values). */
force_baseline = TRUE;
} else if (keymatch(arg, "dct", 2)) {
/* Select DCT algorithm. */
if (++argn >= argc) /* advance to next argument */
usage();
if (keymatch(argv[argn], "int", 1)) {
cinfo->dct_method = JDCT_ISLOW;
} else if (keymatch(argv[argn], "fast", 2)) {
cinfo->dct_method = JDCT_IFAST;
} else if (keymatch(argv[argn], "float", 2)) {
cinfo->dct_method = JDCT_FLOAT;
} else
usage();
} else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
/* Enable debug printouts. */
/* On first -d, print version identification */
static boolean printed_version = FALSE;
if (!printed_version) {
fprintf(stderr, "%s version %s (build %s)\n",
PACKAGE_NAME, VERSION, BUILD);
fprintf(stderr, JCOPYRIGHT1);
fprintf(stderr, JCOPYRIGHT2 "\n");
fprintf(stderr, "Emulating The Independent JPEG Group's software, version %s\n\n",
JVERSION);
printed_version = TRUE;
}
cinfo->err->trace_level++;
} else if (keymatch(arg, "version", 4)) {
fprintf(stderr, "%s version %s (build %s)\n",
PACKAGE_NAME, VERSION, BUILD);
exit(EXIT_SUCCESS);
} else if (keymatch(arg, "grayscale", 2) ||
keymatch(arg, "greyscale", 2)) {
/* Force a monochrome JPEG file to be generated. */
jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
} else if (keymatch(arg, "rgb", 3)) {
/* Force an RGB JPEG file to be generated. */
jpeg_set_colorspace(cinfo, JCS_RGB);
} else if (keymatch(arg, "icc", 1)) {
/* Set ICC filename. */
if (++argn >= argc) /* advance to next argument */
usage();
icc_filename = argv[argn];
} else if (keymatch(arg, "lossless", 1)) {
/* Enable lossless mode. */
#ifdef C_LOSSLESS_SUPPORTED
char ch = ',', *ptr;
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%d%c", &psv, &ch) < 1 || ch != ',')
usage();
ptr = argv[argn];
while (*ptr && *ptr++ != ','); /* advance to next segment of arg
string */
if (*ptr)
sscanf(ptr, "%d", &pt);
jpeg_enable_lossless(cinfo, psv, pt);
#else
fprintf(stderr, "%s: sorry, lossless output was not compiled\n",
progname);
exit(EXIT_FAILURE);
#endif
} else if (keymatch(arg, "maxmemory", 3)) {
/* Maximum memory in Kb (or Mb with 'm'). */
long lval;
char ch = 'x';
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
usage();
if (ch == 'm' || ch == 'M')
lval *= 1000L;
cinfo->mem->max_memory_to_use = lval * 1000L;
} else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {
/* Enable entropy parm optimization. */
#ifdef ENTROPY_OPT_SUPPORTED
cinfo->optimize_coding = TRUE;
#else
fprintf(stderr, "%s: sorry, entropy optimization was not compiled in\n",
progname);
exit(EXIT_FAILURE);
#endif
} else if (keymatch(arg, "outfile", 4)) {
/* Set output file name. */
if (++argn >= argc) /* advance to next argument */
usage();
outfilename = argv[argn]; /* save it away for later use */
} else if (keymatch(arg, "precision", 3)) {
/* Set data precision. */
int val;
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%d", &val) != 1)
usage();
#ifdef C_LOSSLESS_SUPPORTED
if (val != 8 && val != 12 && val != 16)
#else
if (val != 8 && val != 12)
#endif
usage();
cinfo->data_precision = val;
} else if (keymatch(arg, "progressive", 3)) {
/* Select simple progressive mode. */
#ifdef C_PROGRESSIVE_SUPPORTED
simple_progressive = TRUE;
/* We must postpone execution until num_components is known. */
#else
fprintf(stderr, "%s: sorry, progressive output was not compiled in\n",
progname);
exit(EXIT_FAILURE);
#endif
} else if (keymatch(arg, "memdst", 2)) {
/* Use in-memory destination manager */
memdst = TRUE;
} else if (keymatch(arg, "quality", 1)) {
/* Quality ratings (quantization table scaling factors). */
if (++argn >= argc) /* advance to next argument */
usage();
qualityarg = argv[argn];
} else if (keymatch(arg, "qslots", 2)) {
/* Quantization table slot numbers. */
if (++argn >= argc) /* advance to next argument */
usage();
qslotsarg = argv[argn];
/* Must delay setting qslots until after we have processed any
* colorspace-determining switches, since jpeg_set_colorspace sets
* default quant table numbers.
*/
} else if (keymatch(arg, "qtables", 2)) {
/* Quantization tables fetched from file. */
if (++argn >= argc) /* advance to next argument */
usage();
qtablefile = argv[argn];
/* We postpone actually reading the file in case -quality comes later. */
} else if (keymatch(arg, "report", 3)) {
report = TRUE;
} else if (keymatch(arg, "restart", 1)) {
/* Restart interval in MCU rows (or in MCUs with 'b'). */
long lval;
char ch = 'x';
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
usage();
if (lval < 0 || lval > 65535L)
usage();
if (ch == 'b' || ch == 'B') {
cinfo->restart_interval = (unsigned int)lval;
cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */
} else {
cinfo->restart_in_rows = (int)lval;
/* restart_interval will be computed during startup */
}
} else if (keymatch(arg, "sample", 2)) {
/* Set sampling factors. */
if (++argn >= argc) /* advance to next argument */
usage();
samplearg = argv[argn];
/* Must delay setting sample factors until after we have processed any
* colorspace-determining switches, since jpeg_set_colorspace sets
* default sampling factors.
*/
} else if (keymatch(arg, "scans", 4)) {
/* Set scan script. */
#ifdef C_MULTISCAN_FILES_SUPPORTED
if (++argn >= argc) /* advance to next argument */
usage();
scansarg = argv[argn];
/* We must postpone reading the file in case -progressive appears. */
#else
fprintf(stderr, "%s: sorry, multi-scan output was not compiled in\n",
progname);
exit(EXIT_FAILURE);
#endif
} else if (keymatch(arg, "smooth", 2)) {
/* Set input smoothing factor. */
int val;
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%d", &val) != 1)
usage();
if (val < 0 || val > 100)
usage();
cinfo->smoothing_factor = val;
} else if (keymatch(arg, "strict", 2)) {
strict = TRUE;
} else if (keymatch(arg, "targa", 1)) {
/* Input file is Targa format. */
is_targa = TRUE;
} else {
usage(); /* bogus switch */
}
}
/* Post-switch-scanning cleanup */
if (for_real) {
/* Set quantization tables for selected quality. */
/* Some or all may be overridden if -qtables is present. */
if (qualityarg != NULL) /* process -quality if it was present */
if (!set_quality_ratings(cinfo, qualityarg, force_baseline))
usage();
if (qtablefile != NULL) /* process -qtables if it was present */
if (!read_quant_tables(cinfo, qtablefile, force_baseline))
usage();
if (qslotsarg != NULL) /* process -qslots if it was present */
if (!set_quant_slots(cinfo, qslotsarg))
usage();
if (samplearg != NULL) /* process -sample if it was present */
if (!set_sample_factors(cinfo, samplearg))
usage();
#ifdef C_PROGRESSIVE_SUPPORTED
if (simple_progressive) /* process -progressive; -scans can override */
jpeg_simple_progression(cinfo);
#endif
#ifdef C_MULTISCAN_FILES_SUPPORTED
if (scansarg != NULL) /* process -scans if it was present */
if (!read_scan_script(cinfo, scansarg))
usage();
#endif
}
return argn; /* return index of next arg (file name) */
}
METHODDEF(void)
my_emit_message(j_common_ptr cinfo, int msg_level)
{
if (msg_level < 0) {
/* Treat warning as fatal */
cinfo->err->error_exit(cinfo);
} else {
if (cinfo->err->trace_level >= msg_level)
cinfo->err->output_message(cinfo);
}
}
/*
* The main program.
*/
int
main(int argc, char **argv)
{
struct jpeg_compress_struct cinfo;
#ifdef CJPEG_FUZZER
struct my_error_mgr myerr;
struct jpeg_error_mgr &jerr = myerr.pub;
#else
struct jpeg_error_mgr jerr;
#endif
struct cdjpeg_progress_mgr progress;
int file_index;
cjpeg_source_ptr src_mgr;
FILE *input_file = NULL;
FILE *icc_file;
JOCTET *icc_profile = NULL;
long icc_len = 0;
FILE *output_file = NULL;
unsigned char *outbuffer = NULL;
unsigned long outsize = 0;
JDIMENSION num_scanlines;
progname = argv[0];
if (progname == NULL || progname[0] == 0)
progname = "cjpeg"; /* in case C library doesn't provide it */
/* Initialize the JPEG compression object with default error handling. */
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
/* Add some application-specific error messages (from cderror.h) */
jerr.addon_message_table = cdjpeg_message_table;
jerr.first_addon_message = JMSG_FIRSTADDONCODE;
jerr.last_addon_message = JMSG_LASTADDONCODE;
/* Initialize JPEG parameters.
* Much of this may be overridden later.
* In particular, we don't yet know the input file's color space,
* but we need to provide some value for jpeg_set_defaults() to work.
*/
cinfo.in_color_space = JCS_RGB; /* arbitrary guess */
jpeg_set_defaults(&cinfo);
/* Scan command line to find file names.
* It is convenient to use just one switch-parsing routine, but the switch
* values read here are ignored; we will rescan the switches after opening
* the input file.
*/
file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
if (strict)
jerr.emit_message = my_emit_message;
#ifdef TWO_FILE_COMMANDLINE
if (!memdst) {
/* Must have either -outfile switch or explicit output file name */
if (outfilename == NULL) {
if (file_index != argc - 2) {
fprintf(stderr, "%s: must name one input and one output file\n",
progname);
usage();
}
outfilename = argv[file_index + 1];
} else {
if (file_index != argc - 1) {
fprintf(stderr, "%s: must name one input and one output file\n",
progname);
usage();
}
}
}
#else
/* Unix style: expect zero or one file name */
if (file_index < argc - 1) {
fprintf(stderr, "%s: only one input file\n", progname);
usage();
}
#endif /* TWO_FILE_COMMANDLINE */
/* Open the input file. */
if (file_index < argc) {
if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);
exit(EXIT_FAILURE);
}
} else {
/* default input file is stdin */
input_file = read_stdin();
}
/* Open the output file. */
if (outfilename != NULL) {
if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
exit(EXIT_FAILURE);
}
} else if (!memdst) {
/* default output file is stdout */
output_file = write_stdout();
}
if (icc_filename != NULL) {
if ((icc_file = fopen(icc_filename, READ_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, icc_filename);
exit(EXIT_FAILURE);
}
if (fseek(icc_file, 0, SEEK_END) < 0 ||
(icc_len = ftell(icc_file)) < 1 ||
fseek(icc_file, 0, SEEK_SET) < 0) {
fprintf(stderr, "%s: can't determine size of %s\n", progname,
icc_filename);
exit(EXIT_FAILURE);
}
if ((icc_profile = (JOCTET *)malloc(icc_len)) == NULL) {
fprintf(stderr, "%s: can't allocate memory for ICC profile\n", progname);
fclose(icc_file);
exit(EXIT_FAILURE);
}
if (fread(icc_profile, icc_len, 1, icc_file) < 1) {
fprintf(stderr, "%s: can't read ICC profile from %s\n", progname,
icc_filename);
free(icc_profile);
fclose(icc_file);
exit(EXIT_FAILURE);
}
fclose(icc_file);
}
#ifdef CJPEG_FUZZER
jerr.error_exit = my_error_exit;
jerr.emit_message = my_emit_message_fuzzer;
if (setjmp(myerr.setjmp_buffer))
HANDLE_ERROR()
#endif
if (report) {
start_progress_monitor((j_common_ptr)&cinfo, &progress);
progress.report = report;
}
/* Figure out the input file format, and set up to read it. */
src_mgr = select_file_type(&cinfo, input_file);
src_mgr->input_file = input_file;
#ifdef CJPEG_FUZZER
src_mgr->max_pixels = 1048576;
#endif
/* Read the input file header to obtain file size & colorspace. */
(*src_mgr->start_input) (&cinfo, src_mgr);
/* Now that we know input colorspace, fix colorspace-dependent defaults */
jpeg_default_colorspace(&cinfo);
/* Adjust default compression parameters by re-parsing the options */
file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
/* Specify data destination for compression */
if (memdst)
jpeg_mem_dest(&cinfo, &outbuffer, &outsize);
else
jpeg_stdio_dest(&cinfo, output_file);
#ifdef CJPEG_FUZZER
if (setjmp(myerr.setjmp_buffer))
HANDLE_ERROR()
#endif
/* Start compressor */
jpeg_start_compress(&cinfo, TRUE);
if (icc_profile != NULL)
jpeg_write_icc_profile(&cinfo, icc_profile, (unsigned int)icc_len);
/* Process data */
if (cinfo.data_precision == 16) {
#ifdef C_LOSSLESS_SUPPORTED
while (cinfo.next_scanline < cinfo.image_height) {
num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr);
(void)jpeg16_write_scanlines(&cinfo, src_mgr->buffer16, num_scanlines);
}
#else
ERREXIT1(&cinfo, JERR_BAD_PRECISION, cinfo.data_precision);
#endif
} else if (cinfo.data_precision == 12) {
while (cinfo.next_scanline < cinfo.image_height) {
num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr);
(void)jpeg12_write_scanlines(&cinfo, src_mgr->buffer12, num_scanlines);
}
} else {
while (cinfo.next_scanline < cinfo.image_height) {
num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr);
(void)jpeg_write_scanlines(&cinfo, src_mgr->buffer, num_scanlines);
}
}
/* Finish compression and release memory */
(*src_mgr->finish_input) (&cinfo, src_mgr);
jpeg_finish_compress(&cinfo);
jpeg_destroy_compress(&cinfo);
/* Close files, if we opened them */
if (input_file != stdin)
fclose(input_file);
if (output_file != stdout && output_file != NULL)
fclose(output_file);
if (report)
end_progress_monitor((j_common_ptr)&cinfo);
if (memdst) {
#ifndef CJPEG_FUZZER
fprintf(stderr, "Compressed size: %lu bytes\n", outsize);
#endif
free(outbuffer);
}
free(icc_profile);
/* All done. */
return (jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
}

View File

@@ -1,61 +0,0 @@
/*
* cmyk.h
*
* Copyright (C) 2017-2018, 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains convenience functions for performing quick & dirty
* CMYK<->RGB conversion. This algorithm is suitable for testing purposes
* only. Properly converting between CMYK and RGB requires a color management
* system.
*/
#ifndef CMYK_H
#define CMYK_H
#include <jinclude.h>
#define JPEG_INTERNALS
#include <jpeglib.h>
#include "jsamplecomp.h"
/* Fully reversible */
INLINE
LOCAL(void)
rgb_to_cmyk(_JSAMPLE r, _JSAMPLE g, _JSAMPLE b,
_JSAMPLE *c, _JSAMPLE *m, _JSAMPLE *y, _JSAMPLE *k)
{
double ctmp = 1.0 - ((double)r / (double)_MAXJSAMPLE);
double mtmp = 1.0 - ((double)g / (double)_MAXJSAMPLE);
double ytmp = 1.0 - ((double)b / (double)_MAXJSAMPLE);
double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
else {
ctmp = (ctmp - ktmp) / (1.0 - ktmp);
mtmp = (mtmp - ktmp) / (1.0 - ktmp);
ytmp = (ytmp - ktmp) / (1.0 - ktmp);
}
*c = (_JSAMPLE)((double)_MAXJSAMPLE - ctmp * (double)_MAXJSAMPLE + 0.5);
*m = (_JSAMPLE)((double)_MAXJSAMPLE - mtmp * (double)_MAXJSAMPLE + 0.5);
*y = (_JSAMPLE)((double)_MAXJSAMPLE - ytmp * (double)_MAXJSAMPLE + 0.5);
*k = (_JSAMPLE)((double)_MAXJSAMPLE - ktmp * (double)_MAXJSAMPLE + 0.5);
}
/* Fully reversible only for C/M/Y/K values generated with rgb_to_cmyk() */
INLINE
LOCAL(void)
cmyk_to_rgb(_JSAMPLE c, _JSAMPLE m, _JSAMPLE y, _JSAMPLE k,
_JSAMPLE *r, _JSAMPLE *g, _JSAMPLE *b)
{
*r = (_JSAMPLE)((double)c * (double)k / (double)_MAXJSAMPLE + 0.5);
*g = (_JSAMPLE)((double)m * (double)k / (double)_MAXJSAMPLE + 0.5);
*b = (_JSAMPLE)((double)y * (double)k / (double)_MAXJSAMPLE + 0.5);
}
#endif /* CMYK_H */

View File

@@ -1,932 +0,0 @@
/*
* djpeg.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modified 2013-2019 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2010-2011, 2013-2017, 2019-2020, 2022-2024, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains a command-line user interface for the JPEG decompressor.
* It should work on any system with Unix- or MS-DOS-style command lines.
*
* Two different command line styles are permitted, depending on the
* compile-time switch TWO_FILE_COMMANDLINE:
* djpeg [options] inputfile outputfile
* djpeg [options] [inputfile]
* In the second style, output is always to standard output, which you'd
* normally redirect to a file or pipe to some other program. Input is
* either from a named file or from standard input (typically redirected).
* The second style is convenient on Unix but is unhelpful on systems that
* don't support pipes. Also, you MUST use the first style if your system
* doesn't do binary I/O to stdin/stdout.
* To simplify script writing, the "-outfile" switch is provided. The syntax
* djpeg [options] -outfile outputfile inputfile
* works regardless of which command line style is used.
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_DEPRECATE
#endif
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
#include "jversion.h" /* for version message */
#include "jconfigint.h"
#include <ctype.h> /* to declare isprint() */
/* Create the add-on message string table. */
#define JMESSAGE(code, string) string,
static const char * const cdjpeg_message_table[] = {
#include "cderror.h"
NULL
};
/*
* This list defines the known output image formats
* (not all of which need be supported by a given version).
* You can change the default output format by defining DEFAULT_FMT;
* indeed, you had better do so if you undefine PPM_SUPPORTED.
*/
typedef enum {
FMT_BMP, /* BMP format (Windows flavor) */
FMT_GIF, /* GIF format (LZW-compressed) */
FMT_GIF0, /* GIF format (uncompressed) */
FMT_OS2, /* BMP format (OS/2 flavor) */
FMT_PPM, /* PPM/PGM (PBMPLUS formats) */
FMT_TARGA, /* Targa format */
FMT_TIFF /* TIFF format */
} IMAGE_FORMATS;
#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */
#define DEFAULT_FMT FMT_PPM
#endif
static IMAGE_FORMATS requested_fmt;
/*
* Argument-parsing code.
* The switch parser is designed to be useful with DOS-style command line
* syntax, ie, intermixed switches and file names, where only the switches
* to the left of a given file name affect processing of that file.
* The main program in this file doesn't actually use this capability...
*/
static const char *progname; /* program name for error messages */
static char *icc_filename; /* for -icc switch */
static JDIMENSION max_scans; /* for -maxscans switch */
static char *outfilename; /* for -outfile switch */
static boolean memsrc; /* for -memsrc switch */
static boolean report; /* for -report switch */
static boolean skip, crop;
static JDIMENSION skip_start, skip_end;
static JDIMENSION crop_x, crop_y, crop_width, crop_height;
static boolean strict; /* for -strict switch */
#define INPUT_BUF_SIZE 4096
LOCAL(void)
usage(void)
/* complain about bad command line */
{
fprintf(stderr, "usage: %s [switches] ", progname);
#ifdef TWO_FILE_COMMANDLINE
fprintf(stderr, "inputfile outputfile\n");
#else
fprintf(stderr, "[inputfile]\n");
#endif
fprintf(stderr, "Switches (names may be abbreviated):\n");
fprintf(stderr, " -colors N Reduce image to no more than N colors\n");
fprintf(stderr, " -fast Fast, low-quality processing\n");
fprintf(stderr, " -grayscale Force grayscale output\n");
fprintf(stderr, " -rgb Force RGB output\n");
fprintf(stderr, " -rgb565 Force RGB565 output\n");
#ifdef IDCT_SCALING_SUPPORTED
fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n");
#endif
#ifdef BMP_SUPPORTED
fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n",
(DEFAULT_FMT == FMT_BMP ? " (default)" : ""));
#endif
#ifdef GIF_SUPPORTED
fprintf(stderr, " -gif Select GIF output format (LZW-compressed)%s\n",
(DEFAULT_FMT == FMT_GIF ? " (default)" : ""));
fprintf(stderr, " -gif0 Select GIF output format (uncompressed)%s\n",
(DEFAULT_FMT == FMT_GIF0 ? " (default)" : ""));
#endif
#ifdef BMP_SUPPORTED
fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n",
(DEFAULT_FMT == FMT_OS2 ? " (default)" : ""));
#endif
#ifdef PPM_SUPPORTED
fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n",
(DEFAULT_FMT == FMT_PPM ? " (default)" : ""));
#endif
#ifdef TARGA_SUPPORTED
fprintf(stderr, " -targa Select Targa output format%s\n",
(DEFAULT_FMT == FMT_TARGA ? " (default)" : ""));
#endif
fprintf(stderr, "Switches for advanced users:\n");
#ifdef DCT_ISLOW_SUPPORTED
fprintf(stderr, " -dct int Use accurate integer DCT method%s\n",
(JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
#endif
#ifdef DCT_IFAST_SUPPORTED
fprintf(stderr, " -dct fast Use less accurate integer DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
#endif
#ifdef DCT_FLOAT_SUPPORTED
fprintf(stderr, " -dct float Use floating-point DCT method [legacy feature]%s\n",
(JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
#endif
fprintf(stderr, " -dither fs Use F-S dithering (default)\n");
fprintf(stderr, " -dither none Don't use dithering in quantization\n");
fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n");
fprintf(stderr, " -icc FILE Extract ICC profile to FILE\n");
#ifdef QUANT_2PASS_SUPPORTED
fprintf(stderr, " -map FILE Map to colors used in named image file\n");
#endif
fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n");
#ifdef QUANT_1PASS_SUPPORTED
fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n");
#endif
fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n");
fprintf(stderr, " -maxscans N Maximum number of scans to allow in input file\n");
fprintf(stderr, " -outfile name Specify name for output file\n");
fprintf(stderr, " -memsrc Load input file into memory before decompressing\n");
fprintf(stderr, " -report Report decompression progress\n");
fprintf(stderr, " -skip Y0,Y1 Decompress all rows except those between Y0 and Y1 (inclusive)\n");
fprintf(stderr, " -crop WxH+X+Y Decompress only a rectangular subregion of the image\n");
fprintf(stderr, " [requires PBMPLUS (PPM/PGM), GIF, or Targa output format]\n");
fprintf(stderr, " -strict Treat all warnings as fatal\n");
fprintf(stderr, " -verbose or -debug Emit debug output\n");
fprintf(stderr, " -version Print version information and exit\n");
exit(EXIT_FAILURE);
}
LOCAL(int)
parse_switches(j_decompress_ptr cinfo, int argc, char **argv,
int last_file_arg_seen, boolean for_real)
/* Parse optional switches.
* Returns argv[] index of first file-name argument (== argc if none).
* Any file names with indexes <= last_file_arg_seen are ignored;
* they have presumably been processed in a previous iteration.
* (Pass 0 for last_file_arg_seen on the first or only iteration.)
* for_real is FALSE on the first (dummy) pass; we may skip any expensive
* processing.
*/
{
int argn;
char *arg;
/* Set up default JPEG parameters. */
requested_fmt = DEFAULT_FMT; /* set default output file format */
icc_filename = NULL;
max_scans = 0;
outfilename = NULL;
memsrc = FALSE;
report = FALSE;
skip = FALSE;
crop = FALSE;
strict = FALSE;
cinfo->err->trace_level = 0;
/* Scan command line options, adjust parameters */
for (argn = 1; argn < argc; argn++) {
arg = argv[argn];
if (*arg != '-') {
/* Not a switch, must be a file name argument */
if (argn <= last_file_arg_seen) {
outfilename = NULL; /* -outfile applies to just one input file */
continue; /* ignore this name if previously processed */
}
break; /* else done parsing switches */
}
arg++; /* advance past switch marker character */
if (keymatch(arg, "bmp", 1)) {
/* BMP output format (Windows flavor). */
requested_fmt = FMT_BMP;
} else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) ||
keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) {
/* Do color quantization. */
int val;
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%d", &val) != 1)
usage();
cinfo->desired_number_of_colors = val;
cinfo->quantize_colors = TRUE;
} else if (keymatch(arg, "dct", 2)) {
/* Select IDCT algorithm. */
if (++argn >= argc) /* advance to next argument */
usage();
if (keymatch(argv[argn], "int", 1)) {
cinfo->dct_method = JDCT_ISLOW;
} else if (keymatch(argv[argn], "fast", 2)) {
cinfo->dct_method = JDCT_IFAST;
} else if (keymatch(argv[argn], "float", 2)) {
cinfo->dct_method = JDCT_FLOAT;
} else
usage();
} else if (keymatch(arg, "dither", 2)) {
/* Select dithering algorithm. */
if (++argn >= argc) /* advance to next argument */
usage();
if (keymatch(argv[argn], "fs", 2)) {
cinfo->dither_mode = JDITHER_FS;
} else if (keymatch(argv[argn], "none", 2)) {
cinfo->dither_mode = JDITHER_NONE;
} else if (keymatch(argv[argn], "ordered", 2)) {
cinfo->dither_mode = JDITHER_ORDERED;
} else
usage();
} else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
/* Enable debug printouts. */
/* On first -d, print version identification */
static boolean printed_version = FALSE;
if (!printed_version) {
fprintf(stderr, "%s version %s (build %s)\n",
PACKAGE_NAME, VERSION, BUILD);
fprintf(stderr, JCOPYRIGHT1);
fprintf(stderr, JCOPYRIGHT2 "\n");
fprintf(stderr, "Emulating The Independent JPEG Group's software, version %s\n\n",
JVERSION);
printed_version = TRUE;
}
cinfo->err->trace_level++;
} else if (keymatch(arg, "version", 4)) {
fprintf(stderr, "%s version %s (build %s)\n",
PACKAGE_NAME, VERSION, BUILD);
exit(EXIT_SUCCESS);
} else if (keymatch(arg, "fast", 1)) {
/* Select recommended processing options for quick-and-dirty output. */
cinfo->two_pass_quantize = FALSE;
cinfo->dither_mode = JDITHER_ORDERED;
if (!cinfo->quantize_colors) /* don't override an earlier -colors */
cinfo->desired_number_of_colors = 216;
cinfo->dct_method = JDCT_FASTEST;
cinfo->do_fancy_upsampling = FALSE;
} else if (keymatch(arg, "gif", 1)) {
/* GIF output format (LZW-compressed). */
requested_fmt = FMT_GIF;
} else if (keymatch(arg, "gif0", 4)) {
/* GIF output format (uncompressed). */
requested_fmt = FMT_GIF0;
} else if (keymatch(arg, "grayscale", 2) ||
keymatch(arg, "greyscale", 2)) {
/* Force monochrome output. */
cinfo->out_color_space = JCS_GRAYSCALE;
} else if (keymatch(arg, "rgb", 2)) {
/* Force RGB output. */
cinfo->out_color_space = JCS_RGB;
} else if (keymatch(arg, "rgb565", 2)) {
/* Force RGB565 output. */
cinfo->out_color_space = JCS_RGB565;
} else if (keymatch(arg, "icc", 1)) {
/* Set ICC filename. */
if (++argn >= argc) /* advance to next argument */
usage();
icc_filename = argv[argn];
#ifdef SAVE_MARKERS_SUPPORTED
jpeg_save_markers(cinfo, JPEG_APP0 + 2, 0xFFFF);
#endif
} else if (keymatch(arg, "map", 3)) {
/* Quantize to a color map taken from an input file. */
if (++argn >= argc) /* advance to next argument */
usage();
if (for_real) { /* too expensive to do twice! */
#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */
FILE *mapfile;
if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);
exit(EXIT_FAILURE);
}
if (cinfo->data_precision == 12)
read_color_map_12(cinfo, mapfile);
else
read_color_map(cinfo, mapfile);
fclose(mapfile);
cinfo->quantize_colors = TRUE;
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
}
} else if (keymatch(arg, "maxmemory", 3)) {
/* Maximum memory in Kb (or Mb with 'm'). */
long lval;
char ch = 'x';
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
usage();
if (ch == 'm' || ch == 'M')
lval *= 1000L;
cinfo->mem->max_memory_to_use = lval * 1000L;
} else if (keymatch(arg, "maxscans", 4)) {
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%u", &max_scans) != 1)
usage();
} else if (keymatch(arg, "nosmooth", 3)) {
/* Suppress fancy upsampling */
cinfo->do_fancy_upsampling = FALSE;
} else if (keymatch(arg, "onepass", 3)) {
/* Use fast one-pass quantization. */
cinfo->two_pass_quantize = FALSE;
} else if (keymatch(arg, "os2", 3)) {
/* BMP output format (OS/2 flavor). */
requested_fmt = FMT_OS2;
} else if (keymatch(arg, "outfile", 4)) {
/* Set output file name. */
if (++argn >= argc) /* advance to next argument */
usage();
outfilename = argv[argn]; /* save it away for later use */
} else if (keymatch(arg, "memsrc", 2)) {
/* Use in-memory source manager */
memsrc = TRUE;
} else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) {
/* PPM/PGM output format. */
requested_fmt = FMT_PPM;
} else if (keymatch(arg, "report", 2)) {
report = TRUE;
} else if (keymatch(arg, "scale", 2)) {
/* Scale the output image by a fraction M/N. */
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%u/%u",
&cinfo->scale_num, &cinfo->scale_denom) != 2)
usage();
} else if (keymatch(arg, "skip", 2)) {
if (++argn >= argc)
usage();
if (sscanf(argv[argn], "%u,%u", &skip_start, &skip_end) != 2 ||
skip_start > skip_end)
usage();
skip = TRUE;
} else if (keymatch(arg, "crop", 2)) {
char c;
if (++argn >= argc)
usage();
if (sscanf(argv[argn], "%u%c%u+%u+%u", &crop_width, &c, &crop_height,
&crop_x, &crop_y) != 5 ||
(c != 'X' && c != 'x') || crop_width < 1 || crop_height < 1)
usage();
crop = TRUE;
} else if (keymatch(arg, "strict", 2)) {
strict = TRUE;
} else if (keymatch(arg, "targa", 1)) {
/* Targa output format. */
requested_fmt = FMT_TARGA;
} else {
usage(); /* bogus switch */
}
}
return argn; /* return index of next arg (file name) */
}
/*
* Marker processor for COM and interesting APPn markers.
* This replaces the library's built-in processor, which just skips the marker.
* We want to print out the marker as text, to the extent possible.
* Note this code relies on a non-suspending data source.
*/
LOCAL(unsigned int)
jpeg_getc(j_decompress_ptr cinfo)
/* Read next byte */
{
struct jpeg_source_mgr *datasrc = cinfo->src;
if (datasrc->bytes_in_buffer == 0) {
if (!(*datasrc->fill_input_buffer) (cinfo))
ERREXIT(cinfo, JERR_CANT_SUSPEND);
}
datasrc->bytes_in_buffer--;
return *datasrc->next_input_byte++;
}
METHODDEF(boolean)
print_text_marker(j_decompress_ptr cinfo)
{
boolean traceit = (cinfo->err->trace_level >= 1);
long length;
unsigned int ch;
unsigned int lastch = 0;
length = jpeg_getc(cinfo) << 8;
length += jpeg_getc(cinfo);
length -= 2; /* discount the length word itself */
if (traceit) {
if (cinfo->unread_marker == JPEG_COM)
fprintf(stderr, "Comment, length %ld:\n", (long)length);
else /* assume it is an APPn otherwise */
fprintf(stderr, "APP%d, length %ld:\n",
cinfo->unread_marker - JPEG_APP0, (long)length);
}
while (--length >= 0) {
ch = jpeg_getc(cinfo);
if (traceit) {
/* Emit the character in a readable form.
* Nonprintables are converted to \nnn form,
* while \ is converted to \\.
* Newlines in CR, CR/LF, or LF form will be printed as one newline.
*/
if (ch == '\r') {
fprintf(stderr, "\n");
} else if (ch == '\n') {
if (lastch != '\r')
fprintf(stderr, "\n");
} else if (ch == '\\') {
fprintf(stderr, "\\\\");
} else if (isprint(ch)) {
putc(ch, stderr);
} else {
fprintf(stderr, "\\%03o", ch);
}
lastch = ch;
}
}
if (traceit)
fprintf(stderr, "\n");
return TRUE;
}
METHODDEF(void)
my_emit_message(j_common_ptr cinfo, int msg_level)
{
if (msg_level < 0) {
/* Treat warning as fatal */
cinfo->err->error_exit(cinfo);
} else {
if (cinfo->err->trace_level >= msg_level)
cinfo->err->output_message(cinfo);
}
}
/*
* The main program.
*/
int
main(int argc, char **argv)
{
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
struct cdjpeg_progress_mgr progress;
int file_index;
djpeg_dest_ptr dest_mgr = NULL;
FILE *input_file;
FILE *output_file;
unsigned char *inbuffer = NULL;
unsigned long insize = 0;
JDIMENSION num_scanlines;
progname = argv[0];
if (progname == NULL || progname[0] == 0)
progname = "djpeg"; /* in case C library doesn't provide it */
/* Initialize the JPEG decompression object with default error handling. */
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_decompress(&cinfo);
/* Add some application-specific error messages (from cderror.h) */
jerr.addon_message_table = cdjpeg_message_table;
jerr.first_addon_message = JMSG_FIRSTADDONCODE;
jerr.last_addon_message = JMSG_LASTADDONCODE;
/* Insert custom marker processor for COM and APP12.
* APP12 is used by some digital camera makers for textual info,
* so we provide the ability to display it as text.
* If you like, additional APPn marker types can be selected for display,
* but don't try to override APP0 or APP14 this way (see libjpeg.txt).
*/
jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker);
jpeg_set_marker_processor(&cinfo, JPEG_APP0 + 12, print_text_marker);
/* Scan command line to find file names. */
/* It is convenient to use just one switch-parsing routine, but the switch
* values read here are ignored; we will rescan the switches after opening
* the input file.
* (Exception: tracing level set here controls verbosity for COM markers
* found during jpeg_read_header...)
*/
file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
if (strict)
jerr.emit_message = my_emit_message;
#ifdef TWO_FILE_COMMANDLINE
/* Must have either -outfile switch or explicit output file name */
if (outfilename == NULL) {
if (file_index != argc - 2) {
fprintf(stderr, "%s: must name one input and one output file\n",
progname);
usage();
}
outfilename = argv[file_index + 1];
} else {
if (file_index != argc - 1) {
fprintf(stderr, "%s: must name one input and one output file\n",
progname);
usage();
}
}
#else
/* Unix style: expect zero or one file name */
if (file_index < argc - 1) {
fprintf(stderr, "%s: only one input file\n", progname);
usage();
}
#endif /* TWO_FILE_COMMANDLINE */
/* Open the input file. */
if (file_index < argc) {
if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);
exit(EXIT_FAILURE);
}
} else {
/* default input file is stdin */
input_file = read_stdin();
}
/* Open the output file. */
if (outfilename != NULL) {
if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
exit(EXIT_FAILURE);
}
} else {
/* default output file is stdout */
output_file = write_stdout();
}
if (report || max_scans != 0) {
start_progress_monitor((j_common_ptr)&cinfo, &progress);
progress.report = report;
progress.max_scans = max_scans;
}
/* Specify data source for decompression */
if (memsrc) {
size_t nbytes;
do {
inbuffer = (unsigned char *)realloc(inbuffer, insize + INPUT_BUF_SIZE);
if (inbuffer == NULL) {
fprintf(stderr, "%s: memory allocation failure\n", progname);
exit(EXIT_FAILURE);
}
nbytes = fread(&inbuffer[insize], 1, INPUT_BUF_SIZE, input_file);
if (nbytes < INPUT_BUF_SIZE && ferror(input_file)) {
if (file_index < argc)
fprintf(stderr, "%s: can't read from %s\n", progname,
argv[file_index]);
else
fprintf(stderr, "%s: can't read from stdin\n", progname);
}
insize += (unsigned long)nbytes;
} while (nbytes == INPUT_BUF_SIZE);
fprintf(stderr, "Compressed size: %lu bytes\n", insize);
jpeg_mem_src(&cinfo, inbuffer, insize);
} else
jpeg_stdio_src(&cinfo, input_file);
/* Read file header, set default decompression parameters */
(void)jpeg_read_header(&cinfo, TRUE);
/* Adjust default decompression parameters by re-parsing the options */
file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
/* Initialize the output module now to let it override any crucial
* option settings (for instance, GIF wants to force color quantization).
*/
switch (requested_fmt) {
#ifdef BMP_SUPPORTED
case FMT_BMP:
dest_mgr = jinit_write_bmp(&cinfo, FALSE, TRUE);
break;
case FMT_OS2:
dest_mgr = jinit_write_bmp(&cinfo, TRUE, TRUE);
break;
#endif
#ifdef GIF_SUPPORTED
case FMT_GIF:
if (cinfo.data_precision == 16)
ERREXIT1(&cinfo, JERR_BAD_PRECISION, cinfo.data_precision);
else if (cinfo.data_precision == 12)
dest_mgr = j12init_write_gif(&cinfo, TRUE);
else
dest_mgr = jinit_write_gif(&cinfo, TRUE);
break;
case FMT_GIF0:
dest_mgr = jinit_write_gif(&cinfo, FALSE);
break;
#endif
#ifdef PPM_SUPPORTED
case FMT_PPM:
if (cinfo.data_precision == 16)
#ifdef D_LOSSLESS_SUPPORTED
dest_mgr = j16init_write_ppm(&cinfo);
#else
ERREXIT1(&cinfo, JERR_BAD_PRECISION, cinfo.data_precision);
#endif
else if (cinfo.data_precision == 12)
dest_mgr = j12init_write_ppm(&cinfo);
else
dest_mgr = jinit_write_ppm(&cinfo);
break;
#endif
#ifdef TARGA_SUPPORTED
case FMT_TARGA:
dest_mgr = jinit_write_targa(&cinfo);
break;
#endif
default:
ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT);
break;
}
dest_mgr->output_file = output_file;
/* Start decompressor */
(void)jpeg_start_decompress(&cinfo);
/* Skip rows */
if (skip) {
JDIMENSION tmp;
/* Check for valid skip_end. We cannot check this value until after
* jpeg_start_decompress() is called. Note that we have already verified
* that skip_start <= skip_end.
*/
if (skip_end > cinfo.output_height - 1) {
fprintf(stderr, "%s: skip region exceeds image height %u\n", progname,
cinfo.output_height);
exit(EXIT_FAILURE);
}
/* Write output file header. This is a hack to ensure that the destination
* manager creates an output image of the proper size.
*/
tmp = cinfo.output_height;
cinfo.output_height -= (skip_end - skip_start + 1);
(*dest_mgr->start_output) (&cinfo, dest_mgr);
cinfo.output_height = tmp;
if (cinfo.data_precision == 16)
ERREXIT(&cinfo, JERR_NOTIMPL);
else if (cinfo.data_precision == 12) {
/* Process data */
while (cinfo.output_scanline < skip_start) {
num_scanlines = jpeg12_read_scanlines(&cinfo, dest_mgr->buffer12,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
if ((tmp = jpeg12_skip_scanlines(&cinfo, skip_end - skip_start + 1)) !=
skip_end - skip_start + 1) {
fprintf(stderr, "%s: jpeg12_skip_scanlines() returned %u rather than %u\n",
progname, tmp, skip_end - skip_start + 1);
exit(EXIT_FAILURE);
}
while (cinfo.output_scanline < cinfo.output_height) {
num_scanlines = jpeg12_read_scanlines(&cinfo, dest_mgr->buffer12,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
} else {
/* Process data */
while (cinfo.output_scanline < skip_start) {
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
if ((tmp = jpeg_skip_scanlines(&cinfo, skip_end - skip_start + 1)) !=
skip_end - skip_start + 1) {
fprintf(stderr, "%s: jpeg_skip_scanlines() returned %u rather than %u\n",
progname, tmp, skip_end - skip_start + 1);
exit(EXIT_FAILURE);
}
while (cinfo.output_scanline < cinfo.output_height) {
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
}
/* Decompress a subregion */
} else if (crop) {
JDIMENSION tmp;
/* Check for valid crop dimensions. We cannot check these values until
* after jpeg_start_decompress() is called.
*/
if (crop_x + crop_width > cinfo.output_width ||
crop_y + crop_height > cinfo.output_height) {
fprintf(stderr, "%s: crop dimensions exceed image dimensions %u x %u\n",
progname, cinfo.output_width, cinfo.output_height);
exit(EXIT_FAILURE);
}
if (cinfo.data_precision == 16)
ERREXIT(&cinfo, JERR_NOTIMPL);
else if (cinfo.data_precision == 12)
jpeg12_crop_scanline(&cinfo, &crop_x, &crop_width);
else
jpeg_crop_scanline(&cinfo, &crop_x, &crop_width);
if (dest_mgr->calc_buffer_dimensions)
(*dest_mgr->calc_buffer_dimensions) (&cinfo, dest_mgr);
else
ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT);
/* Write output file header. This is a hack to ensure that the destination
* manager creates an output image of the proper size.
*/
tmp = cinfo.output_height;
cinfo.output_height = crop_height;
(*dest_mgr->start_output) (&cinfo, dest_mgr);
cinfo.output_height = tmp;
if (cinfo.data_precision == 16)
ERREXIT(&cinfo, JERR_NOTIMPL);
else if (cinfo.data_precision == 12) {
/* Process data */
if ((tmp = jpeg12_skip_scanlines(&cinfo, crop_y)) != crop_y) {
fprintf(stderr, "%s: jpeg12_skip_scanlines() returned %u rather than %u\n",
progname, tmp, crop_y);
exit(EXIT_FAILURE);
}
while (cinfo.output_scanline < crop_y + crop_height) {
num_scanlines = jpeg12_read_scanlines(&cinfo, dest_mgr->buffer12,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
if ((tmp =
jpeg12_skip_scanlines(&cinfo, cinfo.output_height - crop_y -
crop_height)) !=
cinfo.output_height - crop_y - crop_height) {
fprintf(stderr, "%s: jpeg12_skip_scanlines() returned %u rather than %u\n",
progname, tmp, cinfo.output_height - crop_y - crop_height);
exit(EXIT_FAILURE);
}
} else {
/* Process data */
if ((tmp = jpeg_skip_scanlines(&cinfo, crop_y)) != crop_y) {
fprintf(stderr, "%s: jpeg_skip_scanlines() returned %u rather than %u\n",
progname, tmp, crop_y);
exit(EXIT_FAILURE);
}
while (cinfo.output_scanline < crop_y + crop_height) {
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
if ((tmp =
jpeg_skip_scanlines(&cinfo,
cinfo.output_height - crop_y - crop_height)) !=
cinfo.output_height - crop_y - crop_height) {
fprintf(stderr, "%s: jpeg_skip_scanlines() returned %u rather than %u\n",
progname, tmp, cinfo.output_height - crop_y - crop_height);
exit(EXIT_FAILURE);
}
}
/* Normal full-image decompress */
} else {
/* Write output file header */
(*dest_mgr->start_output) (&cinfo, dest_mgr);
if (cinfo.data_precision == 16) {
#ifdef D_LOSSLESS_SUPPORTED
/* Process data */
while (cinfo.output_scanline < cinfo.output_height) {
num_scanlines = jpeg16_read_scanlines(&cinfo, dest_mgr->buffer16,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
#else
ERREXIT1(&cinfo, JERR_BAD_PRECISION, cinfo.data_precision);
#endif
} else if (cinfo.data_precision == 12) {
/* Process data */
while (cinfo.output_scanline < cinfo.output_height) {
num_scanlines = jpeg12_read_scanlines(&cinfo, dest_mgr->buffer12,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
} else {
/* Process data */
while (cinfo.output_scanline < cinfo.output_height) {
num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
dest_mgr->buffer_height);
(*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
}
}
}
/* Hack: count final pass as done in case finish_output does an extra pass.
* The library won't have updated completed_passes.
*/
if (report || max_scans != 0)
progress.pub.completed_passes = progress.pub.total_passes;
if (icc_filename != NULL) {
FILE *icc_file;
JOCTET *icc_profile;
unsigned int icc_len;
if ((icc_file = fopen(icc_filename, WRITE_BINARY)) == NULL) {
fprintf(stderr, "%s: can't open %s\n", progname, icc_filename);
exit(EXIT_FAILURE);
}
if (jpeg_read_icc_profile(&cinfo, &icc_profile, &icc_len)) {
if (fwrite(icc_profile, icc_len, 1, icc_file) < 1) {
fprintf(stderr, "%s: can't read ICC profile from %s\n", progname,
icc_filename);
free(icc_profile);
fclose(icc_file);
exit(EXIT_FAILURE);
}
free(icc_profile);
fclose(icc_file);
} else if (cinfo.err->msg_code != JWRN_BOGUS_ICC)
fprintf(stderr, "%s: no ICC profile data in JPEG file\n", progname);
}
/* Finish decompression and release memory.
* I must do it in this order because output module has allocated memory
* of lifespan JPOOL_IMAGE; it needs to finish before releasing memory.
*/
(*dest_mgr->finish_output) (&cinfo, dest_mgr);
(void)jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
/* Close files, if we opened them */
if (input_file != stdin)
fclose(input_file);
if (output_file != stdout)
fclose(output_file);
if (report || max_scans != 0)
end_progress_monitor((j_common_ptr)&cinfo);
if (memsrc)
free(inbuffer);
/* All done. */
exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
return 0; /* suppress no-return-value warnings */
}

View File

@@ -1,643 +0,0 @@
/*
* example.c
*
* This file was part of the Independent JPEG Group's software.
* Copyright (C) 1992-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2017, 2019, 2022-2023, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file illustrates how to use the IJG code as a subroutine library
* to read or write JPEG image files with 8-bit or 12-bit data precision. You
* should look at this code in conjunction with the documentation file
* libjpeg.txt.
*
* We present these routines in the same coding style used in the JPEG code
* (ANSI function definitions, etc); but you are of course free to code your
* routines in a different style if you prefer.
*/
/* First-time users of libjpeg-turbo might be better served by looking at
* tjexample.c, which uses the more straightforward TurboJPEG API. Note that
* this example, like cjpeg and djpeg, interleaves disk I/O with JPEG
* compression/decompression, so it is not suitable for benchmarking purposes.
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_DEPRECATE
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#define strcasecmp stricmp
#define strncasecmp strnicmp
#endif
/*
* Include file for users of JPEG library.
* You will need to have included system headers that define at least
* the typedefs FILE and size_t before you can include jpeglib.h.
* (stdio.h is sufficient on ANSI-conforming systems.)
* You may also wish to include "jerror.h".
*/
#include "jpeglib.h"
#include "jerror.h"
/*
* <setjmp.h> is used for the optional error recovery mechanism shown in
* the second part of the example.
*/
#include <setjmp.h>
/******************** JPEG COMPRESSION SAMPLE INTERFACE *******************/
/* This half of the example shows how to feed data into the JPEG compressor.
* We present a minimal version that does not worry about refinements such
* as error recovery (the JPEG code will just exit() if it gets an error).
*/
/*
* IMAGE DATA FORMATS:
*
* The standard input image format is a rectangular array of pixels, with
* each pixel having the same number of "component" values (color channels).
* Each pixel row is an array of JSAMPLEs (which typically are unsigned chars)
* or J12SAMPLEs (which typically are shorts). If you are working with color
* data, then the color values for each pixel must be adjacent in the row; for
* example, R,G,B,R,G,B,R,G,B,... for 24-bit RGB color.
*
* For this example, we'll assume that this data structure matches the way
* our application has stored the image in memory, so we can just pass a
* pointer to our image buffer. In particular, let's say that the image is
* RGB color and is described by:
*/
#define WIDTH 640 /* Number of columns in image */
#define HEIGHT 480 /* Number of rows in image */
/*
* Sample routine for JPEG compression. We assume that the target file name,
* a compression quality factor, and a data precision are passed in.
*/
METHODDEF(void)
write_JPEG_file(char *filename, int quality, int data_precision)
{
/* This struct contains the JPEG compression parameters and pointers to
* working space (which is allocated as needed by the JPEG library).
* It is possible to have several such structures, representing multiple
* compression/decompression processes, in existence at once. We refer
* to any one struct (and its associated working data) as a "JPEG object".
*/
struct jpeg_compress_struct cinfo;
/* This struct represents a JPEG error handler. It is declared separately
* because applications often want to supply a specialized error handler
* (see the second half of this file for an example). But here we just
* take the easy way out and use the standard error handler, which will
* print a message on stderr and call exit() if compression fails.
* Note that this struct must live as long as the main JPEG parameter
* struct, to avoid dangling-pointer problems.
*/
struct jpeg_error_mgr jerr;
/* More stuff */
FILE *outfile; /* target file */
JSAMPARRAY image_buffer = NULL;
/* Points to large array of R,G,B-order data */
JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */
J12SAMPARRAY image_buffer12 = NULL;
/* Points to large array of R,G,B-order 12-bit
data */
J12SAMPROW row_pointer12[1]; /* pointer to J12SAMPLE row[s] */
int row_stride; /* physical row width in image buffer */
int row, col;
/* Step 1: allocate and initialize JPEG compression object */
/* We have to set up the error handler first, in case the initialization
* step fails. (Unlikely, but it could happen if you are out of memory.)
* This routine fills in the contents of struct jerr, and returns jerr's
* address which we place into the link field in cinfo.
*/
cinfo.err = jpeg_std_error(&jerr);
/* Now we can initialize the JPEG compression object. */
jpeg_create_compress(&cinfo);
/* Step 2: specify data destination (eg, a file) */
/* Note: steps 2 and 3 can be done in either order. */
/* Here we use the library-supplied code to send compressed data to a
* stdio stream. You can also write your own code to do something else.
* VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
* requires it in order to write binary files.
*/
if ((outfile = fopen(filename, "wb")) == NULL)
ERREXIT(&cinfo, JERR_FILE_WRITE);
jpeg_stdio_dest(&cinfo, outfile);
/* Step 3: set parameters for compression */
/* First we supply a description of the input image.
* Four fields of the cinfo struct must be filled in:
*/
cinfo.image_width = WIDTH; /* image width and height, in pixels */
cinfo.image_height = HEIGHT;
cinfo.input_components = 3; /* # of color components per pixel */
cinfo.in_color_space = JCS_RGB; /* colorspace of input image */
cinfo.data_precision = data_precision; /* data precision of input image */
/* Now use the library's routine to set default compression parameters.
* (You must set at least cinfo.in_color_space before calling this,
* since the defaults depend on the source color space.)
*/
jpeg_set_defaults(&cinfo);
/* Now you can set any non-default parameters you wish to.
* Here we just illustrate the use of quality (quantization table) scaling:
*/
jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
/* Use 4:4:4 subsampling (default is 4:2:0) */
cinfo.comp_info[0].h_samp_factor = cinfo.comp_info[0].v_samp_factor = 1;
/* Step 4: Start compressor */
/* TRUE ensures that we will write a complete interchange-JPEG file.
* Pass TRUE unless you are very sure of what you're doing.
*/
jpeg_start_compress(&cinfo, TRUE);
/* Step 5: allocate and initialize image buffer */
row_stride = WIDTH * 3; /* J[12]SAMPLEs per row in image_buffer */
/* Make a sample array that will go away when done with image. Note that,
* for the purposes of this example, we could also create a one-row-high
* sample array and initialize it for each successive scanline written in the
* scanline loop below.
*/
if (cinfo.data_precision == 12) {
image_buffer12 = (J12SAMPARRAY)(*cinfo.mem->alloc_sarray)
((j_common_ptr)&cinfo, JPOOL_IMAGE, row_stride, HEIGHT);
/* Initialize image buffer with a repeating pattern */
for (row = 0; row < HEIGHT; row++) {
for (col = 0; col < WIDTH; col++) {
image_buffer12[row][col * 3] =
(col * (MAXJ12SAMPLE + 1) / WIDTH) % (MAXJ12SAMPLE + 1);
image_buffer12[row][col * 3 + 1] =
(row * (MAXJ12SAMPLE + 1) / HEIGHT) % (MAXJ12SAMPLE + 1);
image_buffer12[row][col * 3 + 2] =
(row * (MAXJ12SAMPLE + 1) / HEIGHT +
col * (MAXJ12SAMPLE + 1) / WIDTH) % (MAXJ12SAMPLE + 1);
}
}
} else {
image_buffer = (*cinfo.mem->alloc_sarray)
((j_common_ptr)&cinfo, JPOOL_IMAGE, row_stride, HEIGHT);
for (row = 0; row < HEIGHT; row++) {
for (col = 0; col < WIDTH; col++) {
image_buffer[row][col * 3] =
(col * (MAXJSAMPLE + 1) / WIDTH) % (MAXJSAMPLE + 1);
image_buffer[row][col * 3 + 1] =
(row * (MAXJSAMPLE + 1) / HEIGHT) % (MAXJSAMPLE + 1);
image_buffer[row][col * 3 + 2] =
(row * (MAXJSAMPLE + 1) / HEIGHT + col * (MAXJSAMPLE + 1) / WIDTH) %
(MAXJSAMPLE + 1);
}
}
}
/* Step 6: while (scan lines remain to be written) */
/* jpeg_write_scanlines(...); */
/* Here we use the library's state variable cinfo.next_scanline as the
* loop counter, so that we don't have to keep track ourselves.
* To keep things simple, we pass one scanline per call; you can pass
* more if you wish, though.
*/
if (cinfo.data_precision == 12) {
while (cinfo.next_scanline < cinfo.image_height) {
/* jpeg12_write_scanlines expects an array of pointers to scanlines.
* Here the array is only one element long, but you could pass
* more than one scanline at a time if that's more convenient.
*/
row_pointer12[0] = image_buffer12[cinfo.next_scanline];
(void)jpeg12_write_scanlines(&cinfo, row_pointer12, 1);
}
} else {
while (cinfo.next_scanline < cinfo.image_height) {
/* jpeg_write_scanlines expects an array of pointers to scanlines.
* Here the array is only one element long, but you could pass
* more than one scanline at a time if that's more convenient.
*/
row_pointer[0] = image_buffer[cinfo.next_scanline];
(void)jpeg_write_scanlines(&cinfo, row_pointer, 1);
}
}
/* Step 7: Finish compression */
jpeg_finish_compress(&cinfo);
/* After finish_compress, we can close the output file. */
fclose(outfile);
/* Step 8: release JPEG compression object */
/* This is an important step since it will release a good deal of memory. */
jpeg_destroy_compress(&cinfo);
/* And we're done! */
}
/*
* SOME FINE POINTS:
*
* In the above loop, we ignored the return value of jpeg_write_scanlines,
* which is the number of scanlines actually written. We could get away
* with this because we were only relying on the value of cinfo.next_scanline,
* which will be incremented correctly. If you maintain additional loop
* variables then you should be careful to increment them properly.
* Actually, for output to a stdio stream you needn't worry, because
* then jpeg_write_scanlines will write all the lines passed (or else exit
* with a fatal error). Partial writes can only occur if you use a data
* destination module that can demand suspension of the compressor.
* (If you don't know what that's for, you don't need it.)
*
* Scanlines MUST be supplied in top-to-bottom order if you want your JPEG
* files to be compatible with everyone else's. If you cannot readily read
* your data in that order, you'll need an intermediate array to hold the
* image. See rdtarga.c or rdbmp.c for examples of handling bottom-to-top
* source data using the JPEG code's internal virtual-array mechanisms.
*/
/******************** JPEG DECOMPRESSION SAMPLE INTERFACE *******************/
/* This half of the example shows how to read data from the JPEG decompressor.
* It's a bit more refined than the above, in that we show:
* (a) how to modify the JPEG library's standard error-reporting behavior;
* (b) how to allocate workspace using the library's memory manager.
*
* Just to make this example a little different from the first one, we'll
* assume that we do not intend to put the whole image into an in-memory
* buffer, but to send it line-by-line someplace else. We need a one-
* scanline-high JSAMPLE or J12SAMPLE array as a work buffer, and we will let
* the JPEG memory manager allocate it for us. This approach is actually quite
* useful because we don't need to remember to deallocate the buffer
* separately: it will go away automatically when the JPEG object is cleaned
* up.
*/
/*
* ERROR HANDLING:
*
* The JPEG library's standard error handler (jerror.c) is divided into
* several "methods" which you can override individually. This lets you
* adjust the behavior without duplicating a lot of code, which you might
* have to update with each future release.
*
* Our example here shows how to override the "error_exit" method so that
* control is returned to the library's caller when a fatal error occurs,
* rather than calling exit() as the standard error_exit method does.
*
* We use C's setjmp/longjmp facility to return control. This means that the
* routine which calls the JPEG library must first execute a setjmp() call to
* establish the return point. We want the replacement error_exit to do a
* longjmp(). But we need to make the setjmp buffer accessible to the
* error_exit routine. To do this, we make a private extension of the
* standard JPEG error handler object. (If we were using C++, we'd say we
* were making a subclass of the regular error handler.)
*
* Here's the extended error handler struct:
*/
struct my_error_mgr {
struct jpeg_error_mgr pub; /* "public" fields */
jmp_buf setjmp_buffer; /* for return to caller */
};
typedef struct my_error_mgr *my_error_ptr;
/*
* Here's the routine that will replace the standard error_exit method:
*/
METHODDEF(void)
my_error_exit(j_common_ptr cinfo)
{
/* cinfo->err really points to a my_error_mgr struct, so coerce pointer */
my_error_ptr myerr = (my_error_ptr)cinfo->err;
/* Always display the message. */
/* We could postpone this until after returning, if we chose. */
(*cinfo->err->output_message) (cinfo);
/* Return control to the setjmp point */
longjmp(myerr->setjmp_buffer, 1);
}
METHODDEF(int) do_read_JPEG_file(struct jpeg_decompress_struct *cinfo,
char *infilename, char *outfilename);
/*
* Sample routine for JPEG decompression. We assume that the source file name
* is passed in. We want to return 1 on success, 0 on error.
*/
METHODDEF(int)
read_JPEG_file(char *infilename, char *outfilename)
{
/* This struct contains the JPEG decompression parameters and pointers to
* working space (which is allocated as needed by the JPEG library).
*/
struct jpeg_decompress_struct cinfo;
return do_read_JPEG_file(&cinfo, infilename, outfilename);
}
/*
* We call the libjpeg API from within a separate function, because modifying
* the local non-volatile jpeg_decompress_struct instance below the setjmp()
* return point and then accessing the instance after setjmp() returns would
* result in undefined behavior that may potentially overwrite all or part of
* the structure.
*/
METHODDEF(int)
do_read_JPEG_file(struct jpeg_decompress_struct *cinfo, char *infilename,
char *outfilename)
{
/* We use our private extension JPEG error handler.
* Note that this struct must live as long as the main JPEG parameter
* struct, to avoid dangling-pointer problems.
*/
struct my_error_mgr jerr;
/* More stuff */
FILE *infile; /* source file */
FILE *outfile; /* output file */
JSAMPARRAY buffer = NULL; /* Output row buffer */
J12SAMPARRAY buffer12 = NULL; /* 12-bit output row buffer */
int col;
int row_stride; /* physical row width in output buffer */
int little_endian = 1;
/* In this example we want to open the input and output files before doing
* anything else, so that the setjmp() error recovery below can assume the
* files are open.
*
* VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
* requires it in order to read/write binary files.
*/
if ((infile = fopen(infilename, "rb")) == NULL) {
fprintf(stderr, "can't open %s\n", infilename);
return 0;
}
if ((outfile = fopen(outfilename, "wb")) == NULL) {
fprintf(stderr, "can't open %s\n", outfilename);
fclose(infile);
return 0;
}
/* Step 1: allocate and initialize JPEG decompression object */
/* We set up the normal JPEG error routines, then override error_exit. */
cinfo->err = jpeg_std_error(&jerr.pub);
jerr.pub.error_exit = my_error_exit;
/* Establish the setjmp return context for my_error_exit to use. */
if (setjmp(jerr.setjmp_buffer)) {
/* If we get here, the JPEG code has signaled an error.
* We need to clean up the JPEG object, close the input file, and return.
*/
jpeg_destroy_decompress(cinfo);
fclose(infile);
fclose(outfile);
return 0;
}
/* Now we can initialize the JPEG decompression object. */
jpeg_create_decompress(cinfo);
/* Step 2: specify data source (eg, a file) */
jpeg_stdio_src(cinfo, infile);
/* Step 3: read file parameters with jpeg_read_header() */
(void)jpeg_read_header(cinfo, TRUE);
/* We can ignore the return value from jpeg_read_header since
* (a) suspension is not possible with the stdio data source, and
* (b) we passed TRUE to reject a tables-only JPEG file as an error.
* See libjpeg.txt for more info.
*/
/* emit header for raw PPM format */
fprintf(outfile, "P6\n%d %d\n%d\n", WIDTH, HEIGHT,
cinfo->data_precision == 12 ? MAXJ12SAMPLE : MAXJSAMPLE);
/* Step 4: set parameters for decompression */
/* In this example, we don't need to change any of the defaults set by
* jpeg_read_header(), so we do nothing here.
*/
/* Step 5: Start decompressor */
(void)jpeg_start_decompress(cinfo);
/* We can ignore the return value since suspension is not possible
* with the stdio data source.
*/
/* We may need to do some setup of our own at this point before reading
* the data. After jpeg_start_decompress() we have the correct scaled
* output image dimensions available, as well as the output colormap
* if we asked for color quantization.
* In this example, we need to make an output work buffer of the right size.
*/
/* Samples per row in output buffer */
row_stride = cinfo->output_width * cinfo->output_components;
/* Make a one-row-high sample array that will go away when done with image */
if (cinfo->data_precision == 12)
buffer12 = (J12SAMPARRAY)(*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE, row_stride, 1);
else
buffer = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE, row_stride, 1);
/* Step 6: while (scan lines remain to be read) */
/* jpeg_read_scanlines(...); */
/* Here we use the library's state variable cinfo->output_scanline as the
* loop counter, so that we don't have to keep track ourselves.
*/
if (cinfo->data_precision == 12) {
while (cinfo->output_scanline < cinfo->output_height) {
/* jpeg12_read_scanlines expects an array of pointers to scanlines.
* Here the array is only one element long, but you could ask for
* more than one scanline at a time if that's more convenient.
*/
(void)jpeg12_read_scanlines(cinfo, buffer12, 1);
if (*(char *)&little_endian == 1) {
/* Swap MSB and LSB in each sample */
for (col = 0; col < row_stride; col++)
buffer12[0][col] = ((buffer12[0][col] & 0xFF) << 8) |
((buffer12[0][col] >> 8) & 0xFF);
}
fwrite(buffer12[0], 1, row_stride * sizeof(J12SAMPLE), outfile);
}
} else {
while (cinfo->output_scanline < cinfo->output_height) {
/* jpeg_read_scanlines expects an array of pointers to scanlines.
* Here the array is only one element long, but you could ask for
* more than one scanline at a time if that's more convenient.
*/
(void)jpeg_read_scanlines(cinfo, buffer, 1);
fwrite(buffer[0], 1, row_stride, outfile);
}
}
/* Step 7: Finish decompression */
(void)jpeg_finish_decompress(cinfo);
/* We can ignore the return value since suspension is not possible
* with the stdio data source.
*/
/* Step 8: Release JPEG decompression object */
/* This is an important step since it will release a good deal of memory. */
jpeg_destroy_decompress(cinfo);
/* After finish_decompress, we can close the input and output files.
* Here we postpone it until after no more JPEG errors are possible,
* so as to simplify the setjmp error logic above. (Actually, I don't
* think that jpeg_destroy can do an error exit, but why assume anything...)
*/
fclose(infile);
fclose(outfile);
/* At this point you may want to check to see whether any corrupt-data
* warnings occurred (test whether jerr.pub.num_warnings is nonzero).
*/
/* And we're done! */
return 1;
}
/*
* SOME FINE POINTS:
*
* In the above code, we ignored the return value of jpeg_read_scanlines,
* which is the number of scanlines actually read. We could get away with
* this because we asked for only one line at a time and we weren't using
* a suspending data source. See libjpeg.txt for more info.
*
* We cheated a bit by calling alloc_sarray() after jpeg_start_decompress();
* we should have done it beforehand to ensure that the space would be
* counted against the JPEG max_memory setting. In some systems the above
* code would risk an out-of-memory error. However, in general we don't
* know the output image dimensions before jpeg_start_decompress(), unless we
* call jpeg_calc_output_dimensions(). See libjpeg.txt for more about this.
*
* Scanlines are returned in the same order as they appear in the JPEG file,
* which is standardly top-to-bottom. If you must emit data bottom-to-top,
* you can use one of the virtual arrays provided by the JPEG memory manager
* to invert the data. See wrbmp.c for an example.
*/
LOCAL(void)
usage(const char *progname)
{
fprintf(stderr, "usage: %s compress [switches] outputfile[.jpg]\n",
progname);
fprintf(stderr, " %s decompress inputfile[.jpg] outputfile[.ppm]\n",
progname);
fprintf(stderr, "Switches (names may be abbreviated):\n");
fprintf(stderr, " -precision N Create JPEG file with N-bit data precision\n");
fprintf(stderr, " (N is 8 or 12; default is 8)\n");
fprintf(stderr, " -quality N Compression quality (0..100; 5-95 is most useful range,\n");
fprintf(stderr, " default is 75)\n");
exit(EXIT_FAILURE);
}
typedef enum {
COMPRESS,
DECOMPRESS
} EXAMPLE_MODE;
int
main(int argc, char **argv)
{
int argn, quality = 75;
int data_precision = 8;
EXAMPLE_MODE mode = -1;
char *arg, *filename = NULL;
if (argc < 3)
usage(argv[0]);
if (!strcasecmp(argv[1], "compress"))
mode = COMPRESS;
else if (!strcasecmp(argv[1], "decompress"))
mode = DECOMPRESS;
else
usage(argv[0]);
for (argn = 2; argn < argc; argn++) {
arg = argv[argn];
if (*arg != '-') {
filename = arg;
/* Not a switch, must be a file name argument */
break; /* done parsing switches */
}
arg++; /* advance past switch marker character */
if (!strncasecmp(arg, "p", 1)) {
/* Set data precision. */
if (++argn >= argc) /* advance to next argument */
usage(argv[0]);
if (sscanf(argv[argn], "%d", &data_precision) < 1 ||
(data_precision != 8 && data_precision != 12))
usage(argv[0]);
} else if (!strncasecmp(arg, "q", 1)) {
/* Quality rating (quantization table scaling factor). */
if (++argn >= argc) /* advance to next argument */
usage(argv[0]);
if (sscanf(argv[argn], "%d", &quality) < 1 || quality < 0 ||
quality > 100)
usage(argv[0]);
if (quality < 1)
quality = 1;
}
}
if (!filename)
usage(argv[0]);
if (mode == COMPRESS)
write_JPEG_file(filename, quality, data_precision);
else if (mode == DECOMPRESS) {
if (argc - argn < 2)
usage(argv[0]);
read_JPEG_file(argv[argn], argv[argn + 1]);
}
return 0;
}

View File

@@ -23,7 +23,6 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jcmaster.h"
/*
@@ -91,18 +90,8 @@ jpeg_CreateCompress(j_compress_ptr cinfo, int version, size_t structsize)
cinfo->input_gamma = 1.0; /* in case application forgets */
cinfo->data_precision = BITS_IN_JSAMPLE;
/* OK, I'm ready */
cinfo->global_state = CSTATE_START;
/* The master struct is used to store extension parameters, so we allocate it
* here.
*/
cinfo->master = (struct jpeg_comp_master *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT,
sizeof(my_comp_master));
memset(cinfo->master, 0, sizeof(my_comp_master));
}
@@ -194,20 +183,8 @@ jpeg_finish_compress(j_compress_ptr cinfo)
/* We bypass the main controller and invoke coef controller directly;
* all work is being done from the coefficient buffer.
*/
if (cinfo->data_precision == 16) {
#ifdef C_LOSSLESS_SUPPORTED
if (!(*cinfo->coef->compress_data_16) (cinfo, (J16SAMPIMAGE)NULL))
ERREXIT(cinfo, JERR_CANT_SUSPEND);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
} else if (cinfo->data_precision == 12) {
if (!(*cinfo->coef->compress_data_12) (cinfo, (J12SAMPIMAGE)NULL))
ERREXIT(cinfo, JERR_CANT_SUSPEND);
} else {
if (!(*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE)NULL))
ERREXIT(cinfo, JERR_CANT_SUSPEND);
}
if (!(*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE)NULL))
ERREXIT(cinfo, JERR_CANT_SUSPEND);
}
(*cinfo->master->finish_pass) (cinfo);
}

View File

@@ -1,10 +1,8 @@
/*
* jcapistd.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -20,11 +18,8 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsamplecomp.h"
#if BITS_IN_JSAMPLE == 8
/*
* Compression initialization.
* Before calling this, all parameters and a data destination must be set up.
@@ -56,15 +51,13 @@ jpeg_start_compress(j_compress_ptr cinfo, boolean write_all_tables)
jinit_compress_master(cinfo);
/* Set up for the first pass */
(*cinfo->master->prepare_for_pass) (cinfo);
/* Ready for application to drive first pass through _jpeg_write_scanlines
* or _jpeg_write_raw_data.
/* Ready for application to drive first pass through jpeg_write_scanlines
* or jpeg_write_raw_data.
*/
cinfo->next_scanline = 0;
cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING);
}
#endif
/*
* Write some scanlines of data to the JPEG compressor.
@@ -74,7 +67,7 @@ jpeg_start_compress(j_compress_ptr cinfo, boolean write_all_tables)
* the data destination module has requested suspension of the compressor,
* or if more than image_height scanlines are passed in.
*
* Note: we warn about excess calls to _jpeg_write_scanlines() since
* Note: we warn about excess calls to jpeg_write_scanlines() since
* this likely signals an application programmer error. However,
* excess scanlines passed in the last valid call are *silently* ignored,
* so that the application need not adjust num_lines for end-of-image
@@ -82,15 +75,11 @@ jpeg_start_compress(j_compress_ptr cinfo, boolean write_all_tables)
*/
GLOBAL(JDIMENSION)
_jpeg_write_scanlines(j_compress_ptr cinfo, _JSAMPARRAY scanlines,
JDIMENSION num_lines)
jpeg_write_scanlines(j_compress_ptr cinfo, JSAMPARRAY scanlines,
JDIMENSION num_lines)
{
#if BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED)
JDIMENSION row_ctr, rows_left;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (cinfo->global_state != CSTATE_SCANNING)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
if (cinfo->next_scanline >= cinfo->image_height)
@@ -104,9 +93,9 @@ _jpeg_write_scanlines(j_compress_ptr cinfo, _JSAMPARRAY scanlines,
}
/* Give master control module another chance if this is first call to
* _jpeg_write_scanlines. This lets output of the frame/scan headers be
* jpeg_write_scanlines. This lets output of the frame/scan headers be
* delayed so that application can write COM, etc, markers between
* jpeg_start_compress and _jpeg_write_scanlines.
* jpeg_start_compress and jpeg_write_scanlines.
*/
if (cinfo->master->call_pass_startup)
(*cinfo->master->pass_startup) (cinfo);
@@ -117,35 +106,23 @@ _jpeg_write_scanlines(j_compress_ptr cinfo, _JSAMPARRAY scanlines,
num_lines = rows_left;
row_ctr = 0;
(*cinfo->main->_process_data) (cinfo, scanlines, &row_ctr, num_lines);
(*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines);
cinfo->next_scanline += row_ctr;
return row_ctr;
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
return 0;
#endif
}
#if BITS_IN_JSAMPLE != 16
/*
* Alternate entry point to write raw data.
* Processes exactly one iMCU row per call, unless suspended.
*/
GLOBAL(JDIMENSION)
_jpeg_write_raw_data(j_compress_ptr cinfo, _JSAMPIMAGE data,
JDIMENSION num_lines)
jpeg_write_raw_data(j_compress_ptr cinfo, JSAMPIMAGE data,
JDIMENSION num_lines)
{
JDIMENSION lines_per_iMCU_row;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_NOTIMPL);
if (cinfo->global_state != CSTATE_RAW_OK)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
if (cinfo->next_scanline >= cinfo->image_height) {
@@ -161,9 +138,9 @@ _jpeg_write_raw_data(j_compress_ptr cinfo, _JSAMPIMAGE data,
}
/* Give master control module another chance if this is first call to
* _jpeg_write_raw_data. This lets output of the frame/scan headers be
* jpeg_write_raw_data. This lets output of the frame/scan headers be
* delayed so that application can write COM, etc, markers between
* jpeg_start_compress and _jpeg_write_raw_data.
* jpeg_start_compress and jpeg_write_raw_data.
*/
if (cinfo->master->call_pass_startup)
(*cinfo->master->pass_startup) (cinfo);
@@ -174,7 +151,7 @@ _jpeg_write_raw_data(j_compress_ptr cinfo, _JSAMPIMAGE data,
ERREXIT(cinfo, JERR_BUFFER_SIZE);
/* Directly compress the row. */
if (!(*cinfo->coef->_compress_data) (cinfo, data)) {
if (!(*cinfo->coef->compress_data) (cinfo, data)) {
/* If compressor did not consume the whole row, suspend processing. */
return 0;
}
@@ -183,5 +160,3 @@ _jpeg_write_raw_data(j_compress_ptr cinfo, _JSAMPIMAGE data,
cinfo->next_scanline += lines_per_iMCU_row;
return lines_per_iMCU_row;
}
#endif /* BITS_IN_JSAMPLE != 16 */

View File

@@ -3,20 +3,19 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1997, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* It was modified by The libjpeg-turbo Project to include only code and
* information relevant to libjpeg-turbo.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains the coefficient buffer controller for compression.
* This controller is the top level of the lossy JPEG compressor proper.
* This controller is the top level of the JPEG compressor proper.
* The coefficient buffer lies between forward-DCT and entropy encoding steps.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsamplecomp.h"
/* We use a full-image coefficient buffer when doing Huffman optimization,
@@ -59,12 +58,11 @@ typedef my_coef_controller *my_coef_ptr;
/* Forward declarations */
METHODDEF(boolean) compress_data(j_compress_ptr cinfo, _JSAMPIMAGE input_buf);
METHODDEF(boolean) compress_data(j_compress_ptr cinfo, JSAMPIMAGE input_buf);
#ifdef FULL_COEF_BUFFER_SUPPORTED
METHODDEF(boolean) compress_first_pass(j_compress_ptr cinfo,
_JSAMPIMAGE input_buf);
METHODDEF(boolean) compress_output(j_compress_ptr cinfo,
_JSAMPIMAGE input_buf);
JSAMPIMAGE input_buf);
METHODDEF(boolean) compress_output(j_compress_ptr cinfo, JSAMPIMAGE input_buf);
#endif
@@ -108,18 +106,18 @@ start_pass_coef(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
case JBUF_PASS_THRU:
if (coef->whole_image[0] != NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
coef->pub._compress_data = compress_data;
coef->pub.compress_data = compress_data;
break;
#ifdef FULL_COEF_BUFFER_SUPPORTED
case JBUF_SAVE_AND_PASS:
if (coef->whole_image[0] == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
coef->pub._compress_data = compress_first_pass;
coef->pub.compress_data = compress_first_pass;
break;
case JBUF_CRANK_DEST:
if (coef->whole_image[0] == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
coef->pub._compress_data = compress_output;
coef->pub.compress_data = compress_output;
break;
#endif
default:
@@ -140,7 +138,7 @@ start_pass_coef(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
*/
METHODDEF(boolean)
compress_data(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
compress_data(j_compress_ptr cinfo, JSAMPIMAGE input_buf)
{
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
JDIMENSION MCU_col_num; /* index of current MCU within row */
@@ -174,10 +172,10 @@ compress_data(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
if (coef->iMCU_row_num < last_iMCU_row ||
yoffset + yindex < compptr->last_row_height) {
(*cinfo->fdct->_forward_DCT) (cinfo, compptr,
input_buf[compptr->component_index],
coef->MCU_buffer[blkn],
ypos, xpos, (JDIMENSION)blockcnt);
(*cinfo->fdct->forward_DCT) (cinfo, compptr,
input_buf[compptr->component_index],
coef->MCU_buffer[blkn],
ypos, xpos, (JDIMENSION)blockcnt);
if (blockcnt < compptr->MCU_width) {
/* Create some dummy blocks at the right edge of the image. */
jzero_far((void *)coef->MCU_buffer[blkn + blockcnt],
@@ -244,7 +242,7 @@ compress_data(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
*/
METHODDEF(boolean)
compress_first_pass(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
compress_first_pass(j_compress_ptr cinfo, JSAMPIMAGE input_buf)
{
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
@@ -281,10 +279,10 @@ compress_first_pass(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
*/
for (block_row = 0; block_row < block_rows; block_row++) {
thisblockrow = buffer[block_row];
(*cinfo->fdct->_forward_DCT) (cinfo, compptr,
input_buf[ci], thisblockrow,
(JDIMENSION)(block_row * DCTSIZE),
(JDIMENSION)0, blocks_across);
(*cinfo->fdct->forward_DCT) (cinfo, compptr,
input_buf[ci], thisblockrow,
(JDIMENSION)(block_row * DCTSIZE),
(JDIMENSION)0, blocks_across);
if (ndummy > 0) {
/* Create dummy blocks at the right edge of the image. */
thisblockrow += blocks_across; /* => first dummy block */
@@ -340,7 +338,7 @@ compress_first_pass(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
*/
METHODDEF(boolean)
compress_output(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
compress_output(j_compress_ptr cinfo, JSAMPIMAGE input_buf)
{
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
JDIMENSION MCU_col_num; /* index of current MCU within row */
@@ -404,13 +402,10 @@ compress_output(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
*/
GLOBAL(void)
_jinit_c_coef_controller(j_compress_ptr cinfo, boolean need_full_buffer)
jinit_c_coef_controller(j_compress_ptr cinfo, boolean need_full_buffer)
{
my_coef_ptr coef;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
coef = (my_coef_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_coef_controller));

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2009-2012, 2015, 2022, D. R. Commander.
* Copyright (C) 2009-2012, 2015, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -29,16 +29,15 @@
INLINE
LOCAL(void)
rgb_ycc_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row,
rgb_ycc_convert_internal(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row,
int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int r, g, b;
register JLONG *ctab = cconvert->rgb_ycc_tab;
register _JSAMPROW inptr;
register _JSAMPROW outptr0, outptr1, outptr2;
register JSAMPROW inptr;
register JSAMPROW outptr0, outptr1, outptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
@@ -49,29 +48,26 @@ rgb_ycc_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
outptr2 = output_buf[2][output_row];
output_row++;
for (col = 0; col < num_cols; col++) {
r = RANGE_LIMIT(inptr[RGB_RED]);
g = RANGE_LIMIT(inptr[RGB_GREEN]);
b = RANGE_LIMIT(inptr[RGB_BLUE]);
r = inptr[RGB_RED];
g = inptr[RGB_GREEN];
b = inptr[RGB_BLUE];
inptr += RGB_PIXELSIZE;
/* If the inputs are 0.._MAXJSAMPLE, the outputs of these equations
/* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
* must be too; we do not need an explicit range-limiting operation.
* Hence the value being shifted is never negative, and we don't
* need the general RIGHT_SHIFT macro.
*/
/* Y */
outptr0[col] = (_JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
outptr0[col] = (JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
/* Cb */
outptr1[col] = (_JSAMPLE)((ctab[r + R_CB_OFF] + ctab[g + G_CB_OFF] +
ctab[b + B_CB_OFF]) >> SCALEBITS);
outptr1[col] = (JSAMPLE)((ctab[r + R_CB_OFF] + ctab[g + G_CB_OFF] +
ctab[b + B_CB_OFF]) >> SCALEBITS);
/* Cr */
outptr2[col] = (_JSAMPLE)((ctab[r + R_CR_OFF] + ctab[g + G_CR_OFF] +
ctab[b + B_CR_OFF]) >> SCALEBITS);
outptr2[col] = (JSAMPLE)((ctab[r + R_CR_OFF] + ctab[g + G_CR_OFF] +
ctab[b + B_CR_OFF]) >> SCALEBITS);
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -87,16 +83,15 @@ rgb_ycc_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
INLINE
LOCAL(void)
rgb_gray_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row,
rgb_gray_convert_internal(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row,
int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int r, g, b;
register JLONG *ctab = cconvert->rgb_ycc_tab;
register _JSAMPROW inptr;
register _JSAMPROW outptr;
register JSAMPROW inptr;
register JSAMPROW outptr;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
@@ -105,18 +100,15 @@ rgb_gray_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
outptr = output_buf[0][output_row];
output_row++;
for (col = 0; col < num_cols; col++) {
r = RANGE_LIMIT(inptr[RGB_RED]);
g = RANGE_LIMIT(inptr[RGB_GREEN]);
b = RANGE_LIMIT(inptr[RGB_BLUE]);
r = inptr[RGB_RED];
g = inptr[RGB_GREEN];
b = inptr[RGB_BLUE];
inptr += RGB_PIXELSIZE;
/* Y */
outptr[col] = (_JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
outptr[col] = (JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -127,12 +119,12 @@ rgb_gray_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
INLINE
LOCAL(void)
rgb_rgb_convert_internal(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row,
rgb_rgb_convert_internal(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row,
int num_rows)
{
register _JSAMPROW inptr;
register _JSAMPROW outptr0, outptr1, outptr2;
register JSAMPROW inptr;
register JSAMPROW outptr0, outptr1, outptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;

View File

@@ -5,7 +5,7 @@
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2009-2012, 2015, 2022, D. R. Commander.
* Copyright (C) 2009-2012, 2015, D. R. Commander.
* Copyright (C) 2014, MIPS Technologies, Inc., California.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@@ -17,20 +17,16 @@
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
#include "jsamplecomp.h"
#include "jconfigint.h"
#if BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED)
/* Private subobject */
typedef struct {
struct jpeg_color_converter pub; /* public fields */
#if BITS_IN_JSAMPLE != 16
/* Private state for RGB->YCC conversion */
JLONG *rgb_ycc_tab; /* => table for RGB to YCbCr conversion */
#endif
} my_color_converter;
typedef my_color_converter *my_cconvert_ptr;
@@ -40,14 +36,14 @@ typedef my_color_converter *my_cconvert_ptr;
/*
* YCbCr is defined per CCIR 601-1, except that Cb and Cr are
* normalized to the range 0.._MAXJSAMPLE rather than -0.5 .. 0.5.
* normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
* The conversion equations to be implemented are therefore
* Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
* Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + _CENTERJSAMPLE
* Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + _CENTERJSAMPLE
* Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE
* Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE
* (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
* Note: older versions of the IJG code used a zero offset of _MAXJSAMPLE/2,
* rather than _CENTERJSAMPLE, for Cb and Cr. This gave equal positive and
* Note: older versions of the IJG code used a zero offset of MAXJSAMPLE/2,
* rather than CENTERJSAMPLE, for Cb and Cr. This gave equal positive and
* negative swings for Cb/Cr, but meant that grayscale values (Cb=Cr=0)
* were not represented exactly. Now we sacrifice exact representation of
* maximum red and maximum blue in order to get exact grayscales.
@@ -58,16 +54,16 @@ typedef my_color_converter *my_cconvert_ptr;
*
* For even more speed, we avoid doing any multiplications in the inner loop
* by precalculating the constants times R,G,B for all possible values.
* For 8-bit samples this is very reasonable (only 256 entries per table);
* For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
* for 12-bit samples it is still acceptable. It's not very reasonable for
* 16-bit samples, but if you want lossless storage you shouldn't be changing
* colorspace anyway.
* The _CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included
* The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included
* in the tables to save adding them separately in the inner loop.
*/
#define SCALEBITS 16 /* speediest right-shift on some machines */
#define CBCR_OFFSET ((JLONG)_CENTERJSAMPLE << SCALEBITS)
#define CBCR_OFFSET ((JLONG)CENTERJSAMPLE << SCALEBITS)
#define ONE_HALF ((JLONG)1 << (SCALEBITS - 1))
#define FIX(x) ((JLONG)((x) * (1L << SCALEBITS) + 0.5))
@@ -78,27 +74,15 @@ typedef my_color_converter *my_cconvert_ptr;
*/
#define R_Y_OFF 0 /* offset to R => Y section */
#define G_Y_OFF (1 * (_MAXJSAMPLE + 1)) /* offset to G => Y section */
#define B_Y_OFF (2 * (_MAXJSAMPLE + 1)) /* etc. */
#define R_CB_OFF (3 * (_MAXJSAMPLE + 1))
#define G_CB_OFF (4 * (_MAXJSAMPLE + 1))
#define B_CB_OFF (5 * (_MAXJSAMPLE + 1))
#define G_Y_OFF (1 * (MAXJSAMPLE + 1)) /* offset to G => Y section */
#define B_Y_OFF (2 * (MAXJSAMPLE + 1)) /* etc. */
#define R_CB_OFF (3 * (MAXJSAMPLE + 1))
#define G_CB_OFF (4 * (MAXJSAMPLE + 1))
#define B_CB_OFF (5 * (MAXJSAMPLE + 1))
#define R_CR_OFF B_CB_OFF /* B=>Cb, R=>Cr are the same */
#define G_CR_OFF (6 * (_MAXJSAMPLE + 1))
#define B_CR_OFF (7 * (_MAXJSAMPLE + 1))
#define TABLE_SIZE (8 * (_MAXJSAMPLE + 1))
/* 12-bit samples use a 16-bit data type, so it is possible to pass
* out-of-range sample values (< 0 or > 4095) to jpeg_write_scanlines().
* Thus, we mask the incoming 12-bit samples to guard against overrunning
* or underrunning the conversion tables.
*/
#if BITS_IN_JSAMPLE == 12
#define RANGE_LIMIT(value) ((value) & 0xFFF)
#else
#define RANGE_LIMIT(value) (value)
#endif
#define G_CR_OFF (6 * (MAXJSAMPLE + 1))
#define B_CR_OFF (7 * (MAXJSAMPLE + 1))
#define TABLE_SIZE (8 * (MAXJSAMPLE + 1))
/* Include inline routines for colorspace extensions */
@@ -213,7 +197,6 @@ typedef my_color_converter *my_cconvert_ptr;
METHODDEF(void)
rgb_ycc_start(j_compress_ptr cinfo)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
JLONG *rgb_ycc_tab;
JLONG i;
@@ -223,15 +206,15 @@ rgb_ycc_start(j_compress_ptr cinfo)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(TABLE_SIZE * sizeof(JLONG)));
for (i = 0; i <= _MAXJSAMPLE; i++) {
for (i = 0; i <= MAXJSAMPLE; i++) {
rgb_ycc_tab[i + R_Y_OFF] = FIX(0.29900) * i;
rgb_ycc_tab[i + G_Y_OFF] = FIX(0.58700) * i;
rgb_ycc_tab[i + B_Y_OFF] = FIX(0.11400) * i + ONE_HALF;
rgb_ycc_tab[i + R_CB_OFF] = (-FIX(0.16874)) * i;
rgb_ycc_tab[i + G_CB_OFF] = (-FIX(0.33126)) * i;
/* We use a rounding fudge-factor of 0.5-epsilon for Cb and Cr.
* This ensures that the maximum output will round to _MAXJSAMPLE
* not _MAXJSAMPLE+1, and thus that we don't have to range-limit.
* This ensures that the maximum output will round to MAXJSAMPLE
* not MAXJSAMPLE+1, and thus that we don't have to range-limit.
*/
rgb_ycc_tab[i + B_CB_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF - 1;
/* B=>Cb and R=>Cr tables are the same
@@ -240,9 +223,6 @@ rgb_ycc_start(j_compress_ptr cinfo)
rgb_ycc_tab[i + G_CR_OFF] = (-FIX(0.41869)) * i;
rgb_ycc_tab[i + B_CR_OFF] = (-FIX(0.08131)) * i;
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -251,8 +231,8 @@ rgb_ycc_start(j_compress_ptr cinfo)
*/
METHODDEF(void)
rgb_ycc_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
rgb_ycc_convert(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
{
switch (cinfo->in_color_space) {
case JCS_EXT_RGB:
@@ -299,8 +279,8 @@ rgb_ycc_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
METHODDEF(void)
rgb_gray_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
rgb_gray_convert(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
{
switch (cinfo->in_color_space) {
case JCS_EXT_RGB:
@@ -344,8 +324,8 @@ rgb_gray_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
METHODDEF(void)
rgb_rgb_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
rgb_rgb_convert(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
{
switch (cinfo->in_color_space) {
case JCS_EXT_RGB:
@@ -393,15 +373,14 @@ rgb_rgb_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
METHODDEF(void)
cmyk_ycck_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
cmyk_ycck_convert(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int r, g, b;
register JLONG *ctab = cconvert->rgb_ycc_tab;
register _JSAMPROW inptr;
register _JSAMPROW outptr0, outptr1, outptr2, outptr3;
register JSAMPROW inptr;
register JSAMPROW outptr0, outptr1, outptr2, outptr3;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
@@ -413,31 +392,28 @@ cmyk_ycck_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
outptr3 = output_buf[3][output_row];
output_row++;
for (col = 0; col < num_cols; col++) {
r = _MAXJSAMPLE - RANGE_LIMIT(inptr[0]);
g = _MAXJSAMPLE - RANGE_LIMIT(inptr[1]);
b = _MAXJSAMPLE - RANGE_LIMIT(inptr[2]);
r = MAXJSAMPLE - inptr[0];
g = MAXJSAMPLE - inptr[1];
b = MAXJSAMPLE - inptr[2];
/* K passes through as-is */
outptr3[col] = inptr[3];
inptr += 4;
/* If the inputs are 0.._MAXJSAMPLE, the outputs of these equations
/* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
* must be too; we do not need an explicit range-limiting operation.
* Hence the value being shifted is never negative, and we don't
* need the general RIGHT_SHIFT macro.
*/
/* Y */
outptr0[col] = (_JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
outptr0[col] = (JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
/* Cb */
outptr1[col] = (_JSAMPLE)((ctab[r + R_CB_OFF] + ctab[g + G_CB_OFF] +
ctab[b + B_CB_OFF]) >> SCALEBITS);
outptr1[col] = (JSAMPLE)((ctab[r + R_CB_OFF] + ctab[g + G_CB_OFF] +
ctab[b + B_CB_OFF]) >> SCALEBITS);
/* Cr */
outptr2[col] = (_JSAMPLE)((ctab[r + R_CR_OFF] + ctab[g + G_CR_OFF] +
ctab[b + B_CR_OFF]) >> SCALEBITS);
outptr2[col] = (JSAMPLE)((ctab[r + R_CR_OFF] + ctab[g + G_CR_OFF] +
ctab[b + B_CR_OFF]) >> SCALEBITS);
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -448,11 +424,11 @@ cmyk_ycck_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
METHODDEF(void)
grayscale_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
grayscale_convert(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
{
register _JSAMPROW inptr;
register _JSAMPROW outptr;
register JSAMPROW inptr;
register JSAMPROW outptr;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->image_width;
int instride = cinfo->input_components;
@@ -476,11 +452,11 @@ grayscale_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
METHODDEF(void)
null_convert(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
null_convert(j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
JDIMENSION output_row, int num_rows)
{
register _JSAMPROW inptr;
register _JSAMPROW outptr, outptr0, outptr1, outptr2, outptr3;
register JSAMPROW inptr;
register JSAMPROW outptr, outptr0, outptr1, outptr2, outptr3;
register JDIMENSION col;
register int ci;
int nc = cinfo->num_components;
@@ -548,13 +524,10 @@ null_method(j_compress_ptr cinfo)
*/
GLOBAL(void)
_jinit_color_converter(j_compress_ptr cinfo)
jinit_color_converter(j_compress_ptr cinfo)
{
my_cconvert_ptr cconvert;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
cconvert = (my_cconvert_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_color_converter));
@@ -601,116 +574,123 @@ _jinit_color_converter(j_compress_ptr cinfo)
break;
}
/* Check num_components, set conversion method based on requested space.
* NOTE: We do not allow any lossy color conversion algorithms in lossless
* mode.
*/
/* Check num_components, set conversion method based on requested space */
switch (cinfo->jpeg_color_space) {
case JCS_GRAYSCALE:
if (cinfo->master->lossless &&
cinfo->in_color_space != cinfo->jpeg_color_space)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
if (cinfo->num_components != 1)
ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
if (cinfo->in_color_space == JCS_GRAYSCALE)
cconvert->pub._color_convert = grayscale_convert;
else if (IsExtRGB(cinfo->in_color_space)) {
#ifdef WITH_SIMD
cconvert->pub.color_convert = grayscale_convert;
else if (cinfo->in_color_space == JCS_RGB ||
cinfo->in_color_space == JCS_EXT_RGB ||
cinfo->in_color_space == JCS_EXT_RGBX ||
cinfo->in_color_space == JCS_EXT_BGR ||
cinfo->in_color_space == JCS_EXT_BGRX ||
cinfo->in_color_space == JCS_EXT_XBGR ||
cinfo->in_color_space == JCS_EXT_XRGB ||
cinfo->in_color_space == JCS_EXT_RGBA ||
cinfo->in_color_space == JCS_EXT_BGRA ||
cinfo->in_color_space == JCS_EXT_ABGR ||
cinfo->in_color_space == JCS_EXT_ARGB) {
if (jsimd_can_rgb_gray())
cconvert->pub._color_convert = jsimd_rgb_gray_convert;
else
#endif
{
cconvert->pub.color_convert = jsimd_rgb_gray_convert;
else {
cconvert->pub.start_pass = rgb_ycc_start;
cconvert->pub._color_convert = rgb_gray_convert;
cconvert->pub.color_convert = rgb_gray_convert;
}
} else if (cinfo->in_color_space == JCS_YCbCr)
cconvert->pub._color_convert = grayscale_convert;
cconvert->pub.color_convert = grayscale_convert;
else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
case JCS_RGB:
if (cinfo->master->lossless && !IsExtRGB(cinfo->in_color_space))
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
if (cinfo->num_components != 3)
ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
if (rgb_red[cinfo->in_color_space] == 0 &&
rgb_green[cinfo->in_color_space] == 1 &&
rgb_blue[cinfo->in_color_space] == 2 &&
rgb_pixelsize[cinfo->in_color_space] == 3) {
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_c_can_null_convert())
cconvert->pub._color_convert = jsimd_c_null_convert;
cconvert->pub.color_convert = jsimd_c_null_convert;
else
#endif
cconvert->pub._color_convert = null_convert;
} else if (IsExtRGB(cinfo->in_color_space))
cconvert->pub._color_convert = rgb_rgb_convert;
cconvert->pub.color_convert = null_convert;
} else if (cinfo->in_color_space == JCS_RGB ||
cinfo->in_color_space == JCS_EXT_RGB ||
cinfo->in_color_space == JCS_EXT_RGBX ||
cinfo->in_color_space == JCS_EXT_BGR ||
cinfo->in_color_space == JCS_EXT_BGRX ||
cinfo->in_color_space == JCS_EXT_XBGR ||
cinfo->in_color_space == JCS_EXT_XRGB ||
cinfo->in_color_space == JCS_EXT_RGBA ||
cinfo->in_color_space == JCS_EXT_BGRA ||
cinfo->in_color_space == JCS_EXT_ABGR ||
cinfo->in_color_space == JCS_EXT_ARGB)
cconvert->pub.color_convert = rgb_rgb_convert;
else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
case JCS_YCbCr:
if (cinfo->master->lossless &&
cinfo->in_color_space != cinfo->jpeg_color_space)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
if (cinfo->num_components != 3)
ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
if (IsExtRGB(cinfo->in_color_space)) {
#ifdef WITH_SIMD
if (cinfo->in_color_space == JCS_RGB ||
cinfo->in_color_space == JCS_EXT_RGB ||
cinfo->in_color_space == JCS_EXT_RGBX ||
cinfo->in_color_space == JCS_EXT_BGR ||
cinfo->in_color_space == JCS_EXT_BGRX ||
cinfo->in_color_space == JCS_EXT_XBGR ||
cinfo->in_color_space == JCS_EXT_XRGB ||
cinfo->in_color_space == JCS_EXT_RGBA ||
cinfo->in_color_space == JCS_EXT_BGRA ||
cinfo->in_color_space == JCS_EXT_ABGR ||
cinfo->in_color_space == JCS_EXT_ARGB) {
if (jsimd_can_rgb_ycc())
cconvert->pub._color_convert = jsimd_rgb_ycc_convert;
else
#endif
{
cconvert->pub.color_convert = jsimd_rgb_ycc_convert;
else {
cconvert->pub.start_pass = rgb_ycc_start;
cconvert->pub._color_convert = rgb_ycc_convert;
cconvert->pub.color_convert = rgb_ycc_convert;
}
} else if (cinfo->in_color_space == JCS_YCbCr) {
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_c_can_null_convert())
cconvert->pub._color_convert = jsimd_c_null_convert;
cconvert->pub.color_convert = jsimd_c_null_convert;
else
#endif
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
case JCS_CMYK:
if (cinfo->master->lossless &&
cinfo->in_color_space != cinfo->jpeg_color_space)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
if (cinfo->num_components != 4)
ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
if (cinfo->in_color_space == JCS_CMYK) {
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_c_can_null_convert())
cconvert->pub._color_convert = jsimd_c_null_convert;
cconvert->pub.color_convert = jsimd_c_null_convert;
else
#endif
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
case JCS_YCCK:
if (cinfo->master->lossless &&
cinfo->in_color_space != cinfo->jpeg_color_space)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
if (cinfo->num_components != 4)
ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
if (cinfo->in_color_space == JCS_CMYK) {
cconvert->pub.start_pass = rgb_ycc_start;
cconvert->pub._color_convert = cmyk_ycck_convert;
cconvert->pub.color_convert = cmyk_ycck_convert;
} else if (cinfo->in_color_space == JCS_YCCK) {
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_c_can_null_convert())
cconvert->pub._color_convert = jsimd_c_null_convert;
cconvert->pub.color_convert = jsimd_c_null_convert;
else
#endif
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
@@ -719,14 +699,12 @@ _jinit_color_converter(j_compress_ptr cinfo)
if (cinfo->jpeg_color_space != cinfo->in_color_space ||
cinfo->num_components != cinfo->input_components)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_c_can_null_convert())
cconvert->pub._color_convert = jsimd_c_null_convert;
cconvert->pub.color_convert = jsimd_c_null_convert;
else
#endif
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
break;
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED) */

View File

@@ -6,7 +6,7 @@
* libjpeg-turbo Modifications:
* Copyright (C) 1999-2006, MIYASAKA Masaru.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2011, 2014-2015, 2022, D. R. Commander.
* Copyright (C) 2011, 2014-2015, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -28,10 +28,10 @@
typedef void (*forward_DCT_method_ptr) (DCTELEM *data);
typedef void (*float_DCT_method_ptr) (FAST_FLOAT *data);
typedef void (*convsamp_method_ptr) (_JSAMPARRAY sample_data,
typedef void (*convsamp_method_ptr) (JSAMPARRAY sample_data,
JDIMENSION start_col,
DCTELEM *workspace);
typedef void (*float_convsamp_method_ptr) (_JSAMPARRAY sample_data,
typedef void (*float_convsamp_method_ptr) (JSAMPARRAY sample_data,
JDIMENSION start_col,
FAST_FLOAT *workspace);
@@ -265,13 +265,9 @@ start_pass_fdctmgr(j_compress_ptr cinfo)
dtbl = fdct->divisors[qtblno];
for (i = 0; i < DCTSIZE2; i++) {
#if BITS_IN_JSAMPLE == 8
#ifdef WITH_SIMD
if (!compute_reciprocal(qtbl->quantval[i] << 3, &dtbl[i]) &&
fdct->quantize == jsimd_quantize)
fdct->quantize = quantize;
#else
compute_reciprocal(qtbl->quantval[i] << 3, &dtbl[i]);
#endif
#else
dtbl[i] = ((DCTELEM)qtbl->quantval[i]) << 3;
#endif
@@ -309,19 +305,12 @@ start_pass_fdctmgr(j_compress_ptr cinfo)
dtbl = fdct->divisors[qtblno];
for (i = 0; i < DCTSIZE2; i++) {
#if BITS_IN_JSAMPLE == 8
#ifdef WITH_SIMD
if (!compute_reciprocal(
DESCALE(MULTIPLY16V16((JLONG)qtbl->quantval[i],
(JLONG)aanscales[i]),
CONST_BITS - 3), &dtbl[i]) &&
fdct->quantize == jsimd_quantize)
fdct->quantize = quantize;
#else
compute_reciprocal(
DESCALE(MULTIPLY16V16((JLONG)qtbl->quantval[i],
(JLONG)aanscales[i]),
CONST_BITS-3), &dtbl[i]);
#endif
#else
dtbl[i] = (DCTELEM)
DESCALE(MULTIPLY16V16((JLONG)qtbl->quantval[i],
@@ -381,10 +370,10 @@ start_pass_fdctmgr(j_compress_ptr cinfo)
*/
METHODDEF(void)
convsamp(_JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM *workspace)
convsamp(JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM *workspace)
{
register DCTELEM *workspaceptr;
register _JSAMPROW elemptr;
register JSAMPROW elemptr;
register int elemr;
workspaceptr = workspace;
@@ -392,19 +381,19 @@ convsamp(_JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM *workspace)
elemptr = sample_data[elemr] + start_col;
#if DCTSIZE == 8 /* unroll the inner loop */
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
#else
{
register int elemc;
for (elemc = DCTSIZE; elemc > 0; elemc--)
*workspaceptr++ = (*elemptr++) - _CENTERJSAMPLE;
*workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;
}
#endif
}
@@ -499,7 +488,7 @@ quantize(JCOEFPTR coef_block, DCTELEM *divisors, DCTELEM *workspace)
METHODDEF(void)
forward_DCT(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
JDIMENSION start_row, JDIMENSION start_col, JDIMENSION num_blocks)
/* This version is used for integer DCT implementations. */
{
@@ -533,30 +522,30 @@ forward_DCT(j_compress_ptr cinfo, jpeg_component_info *compptr,
#ifdef DCT_FLOAT_SUPPORTED
METHODDEF(void)
convsamp_float(_JSAMPARRAY sample_data, JDIMENSION start_col,
convsamp_float(JSAMPARRAY sample_data, JDIMENSION start_col,
FAST_FLOAT *workspace)
{
register FAST_FLOAT *workspaceptr;
register _JSAMPROW elemptr;
register JSAMPROW elemptr;
register int elemr;
workspaceptr = workspace;
for (elemr = 0; elemr < DCTSIZE; elemr++) {
elemptr = sample_data[elemr] + start_col;
#if DCTSIZE == 8 /* unroll the inner loop */
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
#else
{
register int elemc;
for (elemc = DCTSIZE; elemc > 0; elemc--)
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - _CENTERJSAMPLE);
*workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);
}
#endif
}
@@ -588,7 +577,7 @@ quantize_float(JCOEFPTR coef_block, FAST_FLOAT *divisors,
METHODDEF(void)
forward_DCT_float(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
JDIMENSION start_row, JDIMENSION start_col,
JDIMENSION num_blocks)
/* This version is used for floating-point DCT implementations. */
@@ -628,14 +617,11 @@ forward_DCT_float(j_compress_ptr cinfo, jpeg_component_info *compptr,
*/
GLOBAL(void)
_jinit_forward_dct(j_compress_ptr cinfo)
jinit_forward_dct(j_compress_ptr cinfo)
{
my_fdct_ptr fdct;
int i;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
fdct = (my_fdct_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_fdct_controller));
@@ -646,34 +632,28 @@ _jinit_forward_dct(j_compress_ptr cinfo)
switch (cinfo->dct_method) {
#ifdef DCT_ISLOW_SUPPORTED
case JDCT_ISLOW:
fdct->pub._forward_DCT = forward_DCT;
#ifdef WITH_SIMD
fdct->pub.forward_DCT = forward_DCT;
if (jsimd_can_fdct_islow())
fdct->dct = jsimd_fdct_islow;
else
#endif
fdct->dct = _jpeg_fdct_islow;
fdct->dct = jpeg_fdct_islow;
break;
#endif
#ifdef DCT_IFAST_SUPPORTED
case JDCT_IFAST:
fdct->pub._forward_DCT = forward_DCT;
#ifdef WITH_SIMD
fdct->pub.forward_DCT = forward_DCT;
if (jsimd_can_fdct_ifast())
fdct->dct = jsimd_fdct_ifast;
else
#endif
fdct->dct = _jpeg_fdct_ifast;
fdct->dct = jpeg_fdct_ifast;
break;
#endif
#ifdef DCT_FLOAT_SUPPORTED
case JDCT_FLOAT:
fdct->pub._forward_DCT = forward_DCT_float;
#ifdef WITH_SIMD
fdct->pub.forward_DCT = forward_DCT_float;
if (jsimd_can_fdct_float())
fdct->float_dct = jsimd_fdct_float;
else
#endif
fdct->float_dct = jpeg_fdct_float;
break;
#endif
@@ -691,33 +671,25 @@ _jinit_forward_dct(j_compress_ptr cinfo)
case JDCT_IFAST:
#endif
#if defined(DCT_ISLOW_SUPPORTED) || defined(DCT_IFAST_SUPPORTED)
#ifdef WITH_SIMD
if (jsimd_can_convsamp())
fdct->convsamp = jsimd_convsamp;
else
#endif
fdct->convsamp = convsamp;
#ifdef WITH_SIMD
if (jsimd_can_quantize())
fdct->quantize = jsimd_quantize;
else
#endif
fdct->quantize = quantize;
break;
#endif
#ifdef DCT_FLOAT_SUPPORTED
case JDCT_FLOAT:
#ifdef WITH_SIMD
if (jsimd_can_convsamp_float())
fdct->float_convsamp = jsimd_convsamp_float;
else
#endif
fdct->float_convsamp = convsamp_float;
#ifdef WITH_SIMD
if (jsimd_can_quantize_float())
fdct->float_quantize = jsimd_quantize_float;
else
#endif
fdct->float_quantize = quantize_float;
break;
#endif

View File

@@ -1,411 +0,0 @@
/*
* jcdiffct.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains the difference buffer controller for compression.
* This controller is the top level of the lossless JPEG compressor proper.
* The difference buffer lies between the prediction/differencing and entropy
* encoding steps.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jlossls.h" /* Private declarations for lossless codec */
#ifdef C_LOSSLESS_SUPPORTED
/* We use a full-image sample buffer when doing Huffman optimization,
* and also for writing multiple-scan JPEG files. In all cases, the
* full-image buffer is filled during the first pass, and the scaling,
* prediction and differencing steps are run during subsequent passes.
*/
#ifdef ENTROPY_OPT_SUPPORTED
#define FULL_SAMP_BUFFER_SUPPORTED
#else
#ifdef C_MULTISCAN_FILES_SUPPORTED
#define FULL_SAMP_BUFFER_SUPPORTED
#endif
#endif
/* Private buffer controller object */
typedef struct {
struct jpeg_c_coef_controller pub; /* public fields */
JDIMENSION iMCU_row_num; /* iMCU row # within image */
JDIMENSION mcu_ctr; /* counts MCUs processed in current row */
int MCU_vert_offset; /* counts MCU rows within iMCU row */
int MCU_rows_per_iMCU_row; /* number of such rows needed */
_JSAMPROW cur_row[MAX_COMPONENTS]; /* row of point-transformed samples */
_JSAMPROW prev_row[MAX_COMPONENTS]; /* previous row of Pt'd samples */
JDIFFARRAY diff_buf[MAX_COMPONENTS]; /* iMCU row of differences */
/* In multi-pass modes, we need a virtual sample array for each component. */
jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
} my_diff_controller;
typedef my_diff_controller *my_diff_ptr;
/* Forward declarations */
METHODDEF(boolean) compress_data(j_compress_ptr cinfo, _JSAMPIMAGE input_buf);
#ifdef FULL_SAMP_BUFFER_SUPPORTED
METHODDEF(boolean) compress_first_pass(j_compress_ptr cinfo,
_JSAMPIMAGE input_buf);
METHODDEF(boolean) compress_output(j_compress_ptr cinfo,
_JSAMPIMAGE input_buf);
#endif
LOCAL(void)
start_iMCU_row(j_compress_ptr cinfo)
/* Reset within-iMCU-row counters for a new row */
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
/* In an interleaved scan, an MCU row is the same as an iMCU row.
* In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows.
* But at the bottom of the image, process only what's left.
*/
if (cinfo->comps_in_scan > 1) {
diff->MCU_rows_per_iMCU_row = 1;
} else {
if (diff->iMCU_row_num < (cinfo->total_iMCU_rows-1))
diff->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor;
else
diff->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height;
}
diff->mcu_ctr = 0;
diff->MCU_vert_offset = 0;
}
/*
* Initialize for a processing pass.
*/
METHODDEF(void)
start_pass_diff(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
/* Because it is hitching a ride on the jpeg_forward_dct struct,
* start_pass_lossless() will be called at the start of the initial pass.
* This ensures that it will be called at the start of the Huffman
* optimization and output passes as well.
*/
if (pass_mode == JBUF_CRANK_DEST)
(*cinfo->fdct->start_pass) (cinfo);
diff->iMCU_row_num = 0;
start_iMCU_row(cinfo);
switch (pass_mode) {
case JBUF_PASS_THRU:
if (diff->whole_image[0] != NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
diff->pub._compress_data = compress_data;
break;
#ifdef FULL_SAMP_BUFFER_SUPPORTED
case JBUF_SAVE_AND_PASS:
if (diff->whole_image[0] == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
diff->pub._compress_data = compress_first_pass;
break;
case JBUF_CRANK_DEST:
if (diff->whole_image[0] == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
diff->pub._compress_data = compress_output;
break;
#endif
default:
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
break;
}
}
#define SWAP_ROWS(rowa, rowb) { \
_JSAMPROW temp = rowa; \
rowa = rowb; rowb = temp; \
}
/*
* Process some data in the single-pass case.
* We process the equivalent of one fully interleaved MCU row ("iMCU" row)
* per call, ie, v_samp_factor rows for each component in the image.
* Returns TRUE if the iMCU row is completed, FALSE if suspended.
*
* NB: input_buf contains a plane for each component in image,
* which we index according to the component's SOF position.
*/
METHODDEF(boolean)
compress_data(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
lossless_comp_ptr losslessc = (lossless_comp_ptr)cinfo->fdct;
JDIMENSION MCU_col_num; /* index of current MCU within row */
JDIMENSION MCU_count; /* number of MCUs encoded */
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
int ci, compi, yoffset, samp_row, samp_rows, samps_across;
jpeg_component_info *compptr;
/* Loop to write as much as one whole iMCU row */
for (yoffset = diff->MCU_vert_offset; yoffset < diff->MCU_rows_per_iMCU_row;
yoffset++) {
MCU_col_num = diff->mcu_ctr;
/* Scale and predict each scanline of the MCU row separately.
*
* Note: We only do this if we are at the start of an MCU row, ie,
* we don't want to reprocess a row suspended by the output.
*/
if (MCU_col_num == 0) {
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
compi = compptr->component_index;
if (diff->iMCU_row_num < last_iMCU_row)
samp_rows = compptr->v_samp_factor;
else {
/* NB: can't use last_row_height here, since may not be set! */
samp_rows =
(int)(compptr->height_in_blocks % compptr->v_samp_factor);
if (samp_rows == 0) samp_rows = compptr->v_samp_factor;
else {
/* Fill dummy difference rows at the bottom edge with zeros, which
* will encode to the smallest amount of data.
*/
for (samp_row = samp_rows; samp_row < compptr->v_samp_factor;
samp_row++)
memset(diff->diff_buf[compi][samp_row], 0,
jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor) * sizeof(JDIFF));
}
}
samps_across = compptr->width_in_blocks;
for (samp_row = 0; samp_row < samp_rows; samp_row++) {
(*losslessc->scaler_scale) (cinfo,
input_buf[compi][samp_row],
diff->cur_row[compi],
samps_across);
(*losslessc->predict_difference[compi])
(cinfo, compi, diff->cur_row[compi], diff->prev_row[compi],
diff->diff_buf[compi][samp_row], samps_across);
SWAP_ROWS(diff->cur_row[compi], diff->prev_row[compi]);
}
}
}
/* Try to write the MCU row (or remaining portion of suspended MCU row). */
MCU_count =
(*cinfo->entropy->encode_mcus) (cinfo,
diff->diff_buf, yoffset, MCU_col_num,
cinfo->MCUs_per_row - MCU_col_num);
if (MCU_count != cinfo->MCUs_per_row - MCU_col_num) {
/* Suspension forced; update state counters and exit */
diff->MCU_vert_offset = yoffset;
diff->mcu_ctr += MCU_col_num;
return FALSE;
}
/* Completed an MCU row, but perhaps not an iMCU row */
diff->mcu_ctr = 0;
}
/* Completed the iMCU row, advance counters for next one */
diff->iMCU_row_num++;
start_iMCU_row(cinfo);
return TRUE;
}
#ifdef FULL_SAMP_BUFFER_SUPPORTED
/*
* Process some data in the first pass of a multi-pass case.
* We process the equivalent of one fully interleaved MCU row ("iMCU" row)
* per call, ie, v_samp_factor rows for each component in the image.
* This amount of data is read from the source buffer and saved into the
* virtual arrays.
*
* We must also emit the data to the compressor. This is conveniently
* done by calling compress_output() after we've loaded the current strip
* of the virtual arrays.
*
* NB: input_buf contains a plane for each component in image. All components
* are loaded into the virtual arrays in this pass. However, it may be that
* only a subset of the components are emitted to the compressor during
* this first pass; be careful about looking at the scan-dependent variables
* (MCU dimensions, etc).
*/
METHODDEF(boolean)
compress_first_pass(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
JDIMENSION samps_across;
int ci, samp_row, samp_rows;
_JSAMPARRAY buffer;
jpeg_component_info *compptr;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
/* Align the virtual buffer for this component. */
buffer = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, diff->whole_image[ci],
diff->iMCU_row_num * compptr->v_samp_factor,
(JDIMENSION)compptr->v_samp_factor, TRUE);
/* Count non-dummy sample rows in this iMCU row. */
if (diff->iMCU_row_num < last_iMCU_row)
samp_rows = compptr->v_samp_factor;
else {
/* NB: can't use last_row_height here, since may not be set! */
samp_rows = (int)(compptr->height_in_blocks % compptr->v_samp_factor);
if (samp_rows == 0) samp_rows = compptr->v_samp_factor;
}
samps_across = compptr->width_in_blocks;
/* Perform point transform scaling and prediction/differencing for all
* non-dummy rows in this iMCU row. Each call on these functions
* processes a complete row of samples.
*/
for (samp_row = 0; samp_row < samp_rows; samp_row++) {
memcpy(buffer[samp_row], input_buf[ci][samp_row],
samps_across * sizeof(_JSAMPLE));
}
}
/* NB: compress_output will increment iMCU_row_num if successful.
* A suspension return will result in redoing all the work above next time.
*/
/* Emit data to the compressor, sharing code with subsequent passes */
return compress_output(cinfo, input_buf);
}
/*
* Process some data in subsequent passes of a multi-pass case.
* We process the equivalent of one fully interleaved MCU row ("iMCU" row)
* per call, ie, v_samp_factor rows for each component in the scan.
* The data is obtained from the virtual arrays and fed to the compressor.
* Returns TRUE if the iMCU row is completed, FALSE if suspended.
*
* NB: input_buf is ignored; it is likely to be a NULL pointer.
*/
METHODDEF(boolean)
compress_output(j_compress_ptr cinfo, _JSAMPIMAGE input_buf)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
int ci, compi;
_JSAMPARRAY buffer[MAX_COMPS_IN_SCAN];
jpeg_component_info *compptr;
/* Align the virtual buffers for the components used in this scan.
* NB: during first pass, this is safe only because the buffers will
* already be aligned properly, so jmemmgr.c won't need to do any I/O.
*/
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
compi = compptr->component_index;
buffer[compi] = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, diff->whole_image[compi],
diff->iMCU_row_num * compptr->v_samp_factor,
(JDIMENSION)compptr->v_samp_factor, FALSE);
}
return compress_data(cinfo, buffer);
}
#endif /* FULL_SAMP_BUFFER_SUPPORTED */
/*
* Initialize difference buffer controller.
*/
GLOBAL(void)
_jinit_c_diff_controller(j_compress_ptr cinfo, boolean need_full_buffer)
{
my_diff_ptr diff;
int ci, row;
jpeg_component_info *compptr;
diff = (my_diff_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_diff_controller));
cinfo->coef = (struct jpeg_c_coef_controller *)diff;
diff->pub.start_pass = start_pass_diff;
/* Create the prediction row buffers. */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
diff->cur_row[ci] = *(_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)1);
diff->prev_row[ci] = *(_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)1);
}
/* Create the difference buffer. */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
diff->diff_buf[ci] =
ALLOC_DARRAY(JPOOL_IMAGE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)compptr->v_samp_factor);
/* Prefill difference rows with zeros. We do this because only actual
* data is placed in the buffers during prediction/differencing, leaving
* any dummy differences at the right edge as zeros, which will encode
* to the smallest amount of data.
*/
for (row = 0; row < compptr->v_samp_factor; row++)
memset(diff->diff_buf[ci][row], 0,
jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor) * sizeof(JDIFF));
}
/* Create the sample buffer. */
if (need_full_buffer) {
#ifdef FULL_SAMP_BUFFER_SUPPORTED
/* Allocate a full-image virtual array for each component, */
/* padded to a multiple of samp_factor differences in each direction. */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
diff->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE, FALSE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)jround_up((long)compptr->height_in_blocks,
(long)compptr->v_samp_factor),
(JDIMENSION)compptr->v_samp_factor);
}
#else
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
#endif
} else
diff->whole_image[0] = NULL; /* flag for no virtual arrays */
}
#endif /* C_LOSSLESS_SUPPORTED */

View File

@@ -3,14 +3,11 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2009-2011, 2014-2016, 2018-2024, D. R. Commander.
* Copyright (C) 2009-2011, 2014-2016, 2018-2022, D. R. Commander.
* Copyright (C) 2015, Matthieu Darbois.
* Copyright (C) 2018, Matthias Räncker.
* Copyright (C) 2020, Arm Limited.
* Copyright (C) 2022, Felix Hanau.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -29,13 +26,44 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#ifdef WITH_SIMD
#include "jsimd.h"
#else
#include "jchuff.h" /* Declarations shared with jc*huff.c */
#endif
#include "jconfigint.h"
#include <limits.h>
#include "jpeg_nbits.h"
/*
* NOTE: If USE_CLZ_INTRINSIC is defined, then clz/bsr instructions will be
* used for bit counting rather than the lookup table. This will reduce the
* memory footprint by 64k, which is important for some mobile applications
* that create many isolated instances of libjpeg-turbo (web browsers, for
* instance.) This may improve performance on some mobile platforms as well.
* This feature is enabled by default only on Arm processors, because some x86
* chips have a slow implementation of bsr, and the use of clz/bsr cannot be
* shown to have a significant performance impact even on the x86 chips that
* have a fast implementation of it. When building for Armv6, you can
* explicitly disable the use of clz/bsr by adding -mthumb to the compiler
* flags (this defines __thumb__).
*/
/* NOTE: Both GCC and Clang define __GNUC__ */
#if (defined(__GNUC__) && (defined(__arm__) || defined(__aarch64__))) || \
defined(_M_ARM) || defined(_M_ARM64)
#if !defined(__thumb__) || defined(__thumb2__)
#define USE_CLZ_INTRINSIC
#endif
#endif
#ifdef USE_CLZ_INTRINSIC
#if defined(_MSC_VER) && !defined(__clang__)
#define JPEG_NBITS_NONZERO(x) (32 - _CountLeadingZeros(x))
#else
#define JPEG_NBITS_NONZERO(x) (32 - __builtin_clz(x))
#endif
#define JPEG_NBITS(x) (x ? JPEG_NBITS_NONZERO(x) : 0)
#else
#include "jpeg_nbits_table.h"
#define JPEG_NBITS(x) (jpeg_nbits_table[x])
#define JPEG_NBITS_NONZERO(x) JPEG_NBITS(x)
#endif
/* Expanded entropy encoder object for Huffman encoding.
@@ -74,9 +102,7 @@ typedef bit_buf_type simd_bit_buf_type;
typedef struct {
union {
bit_buf_type c;
#ifdef WITH_SIMD
simd_bit_buf_type simd;
#endif
} put_buffer; /* current bit accumulation buffer */
int free_bits; /* # of bits available in it */
/* (Neon GAS: # of bits now in it) */
@@ -101,9 +127,7 @@ typedef struct {
long *ac_count_ptrs[NUM_HUFF_TBLS];
#endif
#ifdef WITH_SIMD
int simd;
#endif
} huff_entropy_encoder;
typedef huff_entropy_encoder *huff_entropy_ptr;
@@ -117,9 +141,7 @@ typedef struct {
size_t free_in_buffer; /* # of byte spaces remaining in buffer */
savable_state cur; /* Current bit buffer & DC state */
j_compress_ptr cinfo; /* dump_buffer needs access to this */
#ifdef WITH_SIMD
int simd;
#endif
} working_state;
@@ -158,9 +180,7 @@ start_pass_huff(j_compress_ptr cinfo, boolean gather_statistics)
entropy->pub.finish_pass = finish_pass_huff;
}
#ifdef WITH_SIMD
entropy->simd = jsimd_can_huff_encode_one_block();
#endif
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
@@ -200,7 +220,6 @@ start_pass_huff(j_compress_ptr cinfo, boolean gather_statistics)
}
/* Initialize bit buffer to empty */
#ifdef WITH_SIMD
if (entropy->simd) {
entropy->saved.put_buffer.simd = 0;
#if defined(__aarch64__) && !defined(NEON_INTRINSICS)
@@ -208,9 +227,7 @@ start_pass_huff(j_compress_ptr cinfo, boolean gather_statistics)
#else
entropy->saved.free_bits = SIMD_BIT_BUF_SIZE;
#endif
} else
#endif
{
} else {
entropy->saved.put_buffer.c = 0;
entropy->saved.free_bits = BIT_BUF_SIZE;
}
@@ -225,7 +242,7 @@ start_pass_huff(j_compress_ptr cinfo, boolean gather_statistics)
* Compute the derived values for a Huffman table.
* This routine also performs some validation checks on the table.
*
* Note this is also used by jcphuff.c and jclhuff.c.
* Note this is also used by jcphuff.c.
*/
GLOBAL(void)
@@ -301,12 +318,12 @@ jpeg_make_c_derived_tbl(j_compress_ptr cinfo, boolean isDC, int tblno,
memset(dtbl->ehufco, 0, sizeof(dtbl->ehufco));
memset(dtbl->ehufsi, 0, sizeof(dtbl->ehufsi));
/* This is also a convenient place to check for out-of-range and duplicated
* VAL entries. We allow 0..255 for AC symbols but only 0..15 for DC in
* lossy mode and 0..16 for DC in lossless mode. (We could constrain them
* further based on data depth and mode, but this seems enough.)
/* This is also a convenient place to check for out-of-range
* and duplicated VAL entries. We allow 0..255 for AC symbols
* but only 0..15 for DC. (We could constrain them further
* based on data depth and mode, but this seems enough.)
*/
maxsymbol = isDC ? (cinfo->master->lossless ? 16 : 15) : 255;
maxsymbol = isDC ? 15 : 255;
for (p = 0; p < lastp; p++) {
i = htbl->huffval[p];
@@ -483,7 +500,6 @@ flush_bits(working_state *state)
simd_bit_buf_type put_buffer; int put_bits;
int localbuf = 0;
#ifdef WITH_SIMD
if (state->simd) {
#if defined(__aarch64__) && !defined(NEON_INTRINSICS)
put_bits = state->cur.free_bits;
@@ -491,9 +507,7 @@ flush_bits(working_state *state)
put_bits = SIMD_BIT_BUF_SIZE - state->cur.free_bits;
#endif
put_buffer = state->cur.put_buffer.simd;
} else
#endif
{
} else {
put_bits = BIT_BUF_SIZE - state->cur.free_bits;
put_buffer = state->cur.put_buffer.c;
}
@@ -511,7 +525,6 @@ flush_bits(working_state *state)
EMIT_BYTE(temp)
}
#ifdef WITH_SIMD
if (state->simd) { /* and reset bit buffer to empty */
state->cur.put_buffer.simd = 0;
#if defined(__aarch64__) && !defined(NEON_INTRINSICS)
@@ -519,9 +532,7 @@ flush_bits(working_state *state)
#else
state->cur.free_bits = SIMD_BIT_BUF_SIZE;
#endif
} else
#endif
{
} else {
state->cur.put_buffer.c = 0;
state->cur.free_bits = BIT_BUF_SIZE;
}
@@ -531,8 +542,6 @@ flush_bits(working_state *state)
}
#ifdef WITH_SIMD
/* Encode a single block's worth of coefficients */
LOCAL(boolean)
@@ -552,8 +561,6 @@ encode_one_block_simd(working_state *state, JCOEFPTR block, int last_dc_val,
return TRUE;
}
#endif
LOCAL(boolean)
encode_one_block(working_state *state, JCOEFPTR block, int last_dc_val,
c_derived_tbl *dctbl, c_derived_tbl *actbl)
@@ -562,7 +569,6 @@ encode_one_block(working_state *state, JCOEFPTR block, int last_dc_val,
bit_buf_type put_buffer;
JOCTET _buffer[BUFSIZE], *buffer;
int localbuf = 0;
int max_coef_bits = state->cinfo->data_precision + 2;
free_bits = state->cur.free_bits;
put_buffer = state->cur.put_buffer.c;
@@ -583,11 +589,6 @@ encode_one_block(working_state *state, JCOEFPTR block, int last_dc_val,
/* Find the number of bits needed for the magnitude of the coefficient */
nbits = JPEG_NBITS(nbits);
/* Check for out-of-range coefficient values.
* Since we're encoding a difference, the range limit is twice as much.
*/
if (nbits > max_coef_bits + 1)
ERREXIT(state->cinfo, JERR_BAD_DCT_COEF);
/* Emit the Huffman-coded symbol for the number of bits.
* Emit that number of bits of the value, if positive,
@@ -613,9 +614,6 @@ encode_one_block(working_state *state, JCOEFPTR block, int last_dc_val,
temp += nbits; \
nbits ^= temp; \
nbits = JPEG_NBITS_NONZERO(nbits); \
/* Check for out-of-range coefficient values */ \
if (nbits > max_coef_bits) \
ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); \
/* if run length > 15, must emit special run-length-16 codes (0xF0) */ \
while (r >= 16 * 16) { \
r -= 16 * 16; \
@@ -697,9 +695,7 @@ encode_mcu_huff(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
state.free_in_buffer = cinfo->dest->free_in_buffer;
state.cur = entropy->saved;
state.cinfo = cinfo;
#ifdef WITH_SIMD
state.simd = entropy->simd;
#endif
/* Emit restart marker if needed */
if (cinfo->restart_interval) {
@@ -709,7 +705,6 @@ encode_mcu_huff(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
}
/* Encode the MCU data blocks */
#ifdef WITH_SIMD
if (entropy->simd) {
for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
ci = cinfo->MCU_membership[blkn];
@@ -722,9 +717,7 @@ encode_mcu_huff(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
/* Update last_dc_val */
state.cur.last_dc_val[ci] = MCU_data[blkn][0][0];
}
} else
#endif
{
} else {
for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
ci = cinfo->MCU_membership[blkn];
compptr = cinfo->cur_comp_info[ci];
@@ -772,9 +765,7 @@ finish_pass_huff(j_compress_ptr cinfo)
state.free_in_buffer = cinfo->dest->free_in_buffer;
state.cur = entropy->saved;
state.cinfo = cinfo;
#ifdef WITH_SIMD
state.simd = entropy->simd;
#endif
/* Flush out the last data */
if (!flush_bits(&state))
@@ -810,7 +801,6 @@ htest_one_block(j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
register int temp;
register int nbits;
register int k, r;
int max_coef_bits = cinfo->data_precision + 2;
/* Encode the DC coefficient difference per section F.1.2.1 */
@@ -827,7 +817,7 @@ htest_one_block(j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
/* Check for out-of-range coefficient values.
* Since we're encoding a difference, the range limit is twice as much.
*/
if (nbits > max_coef_bits + 1)
if (nbits > MAX_COEF_BITS + 1)
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
/* Count the Huffman symbol for the number of bits */
@@ -856,7 +846,7 @@ htest_one_block(j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
while ((temp >>= 1))
nbits++;
/* Check for out-of-range coefficient values */
if (nbits > max_coef_bits)
if (nbits > MAX_COEF_BITS)
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
/* Count Huffman symbol for run length / number of bits */
@@ -911,7 +901,7 @@ encode_mcu_gather(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
/*
* Generate the best Huffman code table for the given counts, fill htbl.
* Note this is also used by jcphuff.c and jclhuff.c.
* Note this is also used by jcphuff.c.
*
* The JPEG standard requires that no symbol be assigned a codeword of all
* one bits (so that padding bits added at the end of a compressed segment
@@ -943,15 +933,11 @@ jpeg_gen_optimal_table(j_compress_ptr cinfo, JHUFF_TBL *htbl, long freq[])
{
#define MAX_CLEN 32 /* assumed maximum initial code length */
UINT8 bits[MAX_CLEN + 1]; /* bits[k] = # of symbols with code length k */
int bit_pos[MAX_CLEN + 1]; /* # of symbols with smaller code length */
int codesize[257]; /* codesize[k] = code length of symbol k */
int nz_index[257]; /* index of nonzero symbol in the original freq
array */
int others[257]; /* next symbol in current branch of tree */
int c1, c2;
int p, i, j;
int num_nz_symbols;
long v, v2;
long v;
/* This algorithm is explained in section K.2 of the JPEG standard */
@@ -966,41 +952,28 @@ jpeg_gen_optimal_table(j_compress_ptr cinfo, JHUFF_TBL *htbl, long freq[])
* will be placed last in the largest codeword category.
*/
/* Group nonzero frequencies together so we can more easily find the
* smallest.
*/
num_nz_symbols = 0;
for (i = 0; i < 257; i++) {
if (freq[i]) {
nz_index[num_nz_symbols] = i;
freq[num_nz_symbols] = freq[i];
num_nz_symbols++;
}
}
/* Huffman's basic algorithm to assign optimal code lengths to symbols */
for (;;) {
/* Find the two smallest nonzero frequencies; set c1, c2 = their symbols */
/* In case of ties, take the larger symbol number. Since we have grouped
* the nonzero symbols together, checking for zero symbols is not
* necessary.
*/
/* Find the smallest nonzero frequency, set c1 = its symbol */
/* In case of ties, take the larger symbol number */
c1 = -1;
v = 1000000000L;
for (i = 0; i <= 256; i++) {
if (freq[i] && freq[i] <= v) {
v = freq[i];
c1 = i;
}
}
/* Find the next smallest nonzero frequency, set c2 = its symbol */
/* In case of ties, take the larger symbol number */
c2 = -1;
v = 1000000000L;
v2 = 1000000000L;
for (i = 0; i < num_nz_symbols; i++) {
if (freq[i] <= v2) {
if (freq[i] <= v) {
c2 = c1;
v2 = v;
v = freq[i];
c1 = i;
} else {
v2 = freq[i];
c2 = i;
}
for (i = 0; i <= 256; i++) {
if (freq[i] && freq[i] <= v && i != c1) {
v = freq[i];
c2 = i;
}
}
@@ -1010,10 +983,7 @@ jpeg_gen_optimal_table(j_compress_ptr cinfo, JHUFF_TBL *htbl, long freq[])
/* Else merge the two counts/trees */
freq[c1] += freq[c2];
/* Set the frequency to a very high value instead of zero, so we don't have
* to check for zero values.
*/
freq[c2] = 1000000001L;
freq[c2] = 0;
/* Increment the codesize of everything in c1's tree branch */
codesize[c1]++;
@@ -1033,24 +1003,15 @@ jpeg_gen_optimal_table(j_compress_ptr cinfo, JHUFF_TBL *htbl, long freq[])
}
/* Now count the number of symbols of each code length */
for (i = 0; i < num_nz_symbols; i++) {
/* The JPEG standard seems to think that this can't happen, */
/* but I'm paranoid... */
if (codesize[i] > MAX_CLEN)
ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW);
for (i = 0; i <= 256; i++) {
if (codesize[i]) {
/* The JPEG standard seems to think that this can't happen, */
/* but I'm paranoid... */
if (codesize[i] > MAX_CLEN)
ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW);
bits[codesize[i]]++;
}
/* Count the number of symbols with a length smaller than i bits, so we can
* construct the symbol table more efficiently. Note that this includes the
* pseudo-symbol 256, but since it is the last symbol, it will not affect the
* table.
*/
p = 0;
for (i = 1; i <= MAX_CLEN; i++) {
bit_pos[i] = p;
p += bits[i];
bits[codesize[i]]++;
}
}
/* JPEG doesn't allow symbols with code lengths over 16 bits, so if the pure
@@ -1090,9 +1051,14 @@ jpeg_gen_optimal_table(j_compress_ptr cinfo, JHUFF_TBL *htbl, long freq[])
* changes made above, but Rec. ITU-T T.81 | ISO/IEC 10918-1 seems to think
* this works.
*/
for (i = 0; i < num_nz_symbols - 1; i++) {
htbl->huffval[bit_pos[codesize[i]]] = (UINT8)nz_index[i];
bit_pos[codesize[i]]++;
p = 0;
for (i = 1; i <= MAX_CLEN; i++) {
for (j = 0; j <= 255; j++) {
if (codesize[j] == i) {
htbl->huffval[p] = (UINT8)j;
p++;
}
}
}
/* Set sent_table FALSE so updated table will be written to JPEG file. */

View File

@@ -3,8 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* It was modified by The libjpeg-turbo Project to include only code relevant
* to libjpeg-turbo.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -19,13 +19,11 @@
* Hence the magnitude should always fit in 10 or 14 bits respectively.
*/
/* The progressive Huffman encoder uses an unsigned 16-bit data type to store
* absolute values of coefficients, because it is possible to inject a
* coefficient value of -32768 into the encoder by attempting to transform a
* malformed 12-bit JPEG image, and the absolute value of -32768 would overflow
* a signed 16-bit integer.
*/
typedef unsigned short UJCOEF;
#if BITS_IN_JSAMPLE == 8
#define MAX_COEF_BITS 10
#else
#define MAX_COEF_BITS 14
#endif
/* Derived data constructed for each Huffman table */

View File

@@ -3,10 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, 2022, D. R. Commander.
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -23,7 +21,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
/*
@@ -40,101 +38,34 @@ jinit_compress_master(j_compress_ptr cinfo)
/* Preprocessing */
if (!cinfo->raw_data_in) {
if (cinfo->data_precision == 16) {
#ifdef C_LOSSLESS_SUPPORTED
j16init_color_converter(cinfo);
j16init_downsampler(cinfo);
j16init_c_prep_controller(cinfo,
FALSE /* never need full buffer here */);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
} else if (cinfo->data_precision == 12) {
j12init_color_converter(cinfo);
j12init_downsampler(cinfo);
j12init_c_prep_controller(cinfo,
FALSE /* never need full buffer here */);
} else {
jinit_color_converter(cinfo);
jinit_downsampler(cinfo);
jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */);
}
jinit_color_converter(cinfo);
jinit_downsampler(cinfo);
jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */);
}
if (cinfo->master->lossless) {
#ifdef C_LOSSLESS_SUPPORTED
/* Prediction, sample differencing, and point transform */
if (cinfo->data_precision == 16)
j16init_lossless_compressor(cinfo);
else if (cinfo->data_precision == 12)
j12init_lossless_compressor(cinfo);
else
jinit_lossless_compressor(cinfo);
/* Entropy encoding: either Huffman or arithmetic coding. */
if (cinfo->arith_code) {
ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
} else {
jinit_lhuff_encoder(cinfo);
}
/* Need a full-image difference buffer in any multi-pass mode. */
if (cinfo->data_precision == 16)
j16init_c_diff_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
cinfo->optimize_coding));
else if (cinfo->data_precision == 12)
j12init_c_diff_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
cinfo->optimize_coding));
else
jinit_c_diff_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
cinfo->optimize_coding));
/* Forward DCT */
jinit_forward_dct(cinfo);
/* Entropy encoding: either Huffman or arithmetic coding. */
if (cinfo->arith_code) {
#ifdef C_ARITH_CODING_SUPPORTED
jinit_arith_encoder(cinfo);
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
#endif
} else {
if (cinfo->data_precision == 16)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
/* Forward DCT */
if (cinfo->data_precision == 12)
j12init_forward_dct(cinfo);
else
jinit_forward_dct(cinfo);
/* Entropy encoding: either Huffman or arithmetic coding. */
if (cinfo->arith_code) {
#ifdef C_ARITH_CODING_SUPPORTED
jinit_arith_encoder(cinfo);
#else
ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
#endif
} else {
if (cinfo->progressive_mode) {
if (cinfo->progressive_mode) {
#ifdef C_PROGRESSIVE_SUPPORTED
jinit_phuff_encoder(cinfo);
jinit_phuff_encoder(cinfo);
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else
jinit_huff_encoder(cinfo);
}
/* Need a full-image coefficient buffer in any multi-pass mode. */
if (cinfo->data_precision == 12)
j12init_c_coef_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
cinfo->optimize_coding));
else
jinit_c_coef_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
cinfo->optimize_coding));
} else
jinit_huff_encoder(cinfo);
}
if (cinfo->data_precision == 16)
#ifdef C_LOSSLESS_SUPPORTED
j16init_c_main_controller(cinfo, FALSE /* never need full buffer here */);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
else if (cinfo->data_precision == 12)
j12init_c_main_controller(cinfo, FALSE /* never need full buffer here */);
else
jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */);
/* Need a full-image coefficient buffer in any multi-pass mode. */
jinit_c_coef_controller(cinfo, (boolean)(cinfo->num_scans > 1 ||
cinfo->optimize_coding));
jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */);
jinit_marker_writer(cinfo);

View File

@@ -1,587 +0,0 @@
/*
* jclhuff.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains Huffman entropy encoding routines for lossless JPEG.
*
* Much of the complexity here has to do with supporting output suspension.
* If the data destination module demands suspension, we want to be able to
* back up to the start of the current MCU. To do this, we copy state
* variables into local working storage, and update them back to the
* permanent JPEG objects only upon successful completion of an MCU.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jlossls.h" /* Private declarations for lossless codec */
#include "jchuff.h" /* Declarations shared with jc*huff.c */
#ifdef C_LOSSLESS_SUPPORTED
/* The legal range of a spatial difference is
* -32767 .. +32768.
* Hence the magnitude should always fit in 16 bits.
*/
#define MAX_DIFF_BITS 16
/* Expanded entropy encoder object for Huffman encoding in lossless mode.
*
* The savable_state subrecord contains fields that change within an MCU,
* but must not be updated permanently until we complete the MCU.
*/
typedef struct {
size_t put_buffer; /* current bit-accumulation buffer */
int put_bits; /* # of bits now in it */
} savable_state;
typedef struct {
int ci, yoffset, MCU_width;
} lhe_input_ptr_info;
typedef struct {
struct jpeg_entropy_encoder pub; /* public fields */
savable_state saved; /* Bit buffer at start of MCU */
/* These fields are NOT loaded into local working state. */
unsigned int restarts_to_go; /* MCUs left in this restart interval */
int next_restart_num; /* next restart number to write (0-7) */
/* Pointers to derived tables (these workspaces have image lifespan) */
c_derived_tbl *derived_tbls[NUM_HUFF_TBLS];
/* Pointers to derived tables to be used for each data unit within an MCU */
c_derived_tbl *cur_tbls[C_MAX_BLOCKS_IN_MCU];
#ifdef ENTROPY_OPT_SUPPORTED /* Statistics tables for optimization */
long *count_ptrs[NUM_HUFF_TBLS];
/* Pointers to stats tables to be used for each data unit within an MCU */
long *cur_counts[C_MAX_BLOCKS_IN_MCU];
#endif
/* Pointers to the proper input difference row for each group of data units
* within an MCU. For each component, there are Vi groups of Hi data units.
*/
JDIFFROW input_ptr[C_MAX_BLOCKS_IN_MCU];
/* Number of input pointers in use for the current MCU. This is the sum
* of all Vi in the MCU.
*/
int num_input_ptrs;
/* Information used for positioning the input pointers within the input
* difference rows.
*/
lhe_input_ptr_info input_ptr_info[C_MAX_BLOCKS_IN_MCU];
/* Index of the proper input pointer for each data unit within an MCU */
int input_ptr_index[C_MAX_BLOCKS_IN_MCU];
} lhuff_entropy_encoder;
typedef lhuff_entropy_encoder *lhuff_entropy_ptr;
/* Working state while writing an MCU.
* This struct contains all the fields that are needed by subroutines.
*/
typedef struct {
JOCTET *next_output_byte; /* => next byte to write in buffer */
size_t free_in_buffer; /* # of byte spaces remaining in buffer */
savable_state cur; /* Current bit buffer & DC state */
j_compress_ptr cinfo; /* dump_buffer needs access to this */
} working_state;
/* Forward declarations */
METHODDEF(JDIMENSION) encode_mcus_huff(j_compress_ptr cinfo,
JDIFFIMAGE diff_buf,
JDIMENSION MCU_row_num,
JDIMENSION MCU_col_num,
JDIMENSION nMCU);
METHODDEF(void) finish_pass_huff(j_compress_ptr cinfo);
#ifdef ENTROPY_OPT_SUPPORTED
METHODDEF(JDIMENSION) encode_mcus_gather(j_compress_ptr cinfo,
JDIFFIMAGE diff_buf,
JDIMENSION MCU_row_num,
JDIMENSION MCU_col_num,
JDIMENSION nMCU);
METHODDEF(void) finish_pass_gather(j_compress_ptr cinfo);
#endif
/*
* Initialize for a Huffman-compressed scan.
* If gather_statistics is TRUE, we do not output anything during the scan,
* just count the Huffman symbols used and generate Huffman code tables.
*/
METHODDEF(void)
start_pass_lhuff(j_compress_ptr cinfo, boolean gather_statistics)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
int ci, dctbl, sampn, ptrn, yoffset, xoffset;
jpeg_component_info *compptr;
if (gather_statistics) {
#ifdef ENTROPY_OPT_SUPPORTED
entropy->pub.encode_mcus = encode_mcus_gather;
entropy->pub.finish_pass = finish_pass_gather;
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else {
entropy->pub.encode_mcus = encode_mcus_huff;
entropy->pub.finish_pass = finish_pass_huff;
}
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
dctbl = compptr->dc_tbl_no;
if (gather_statistics) {
#ifdef ENTROPY_OPT_SUPPORTED
/* Check for invalid table indexes */
/* (make_c_derived_tbl does this in the other path) */
if (dctbl < 0 || dctbl >= NUM_HUFF_TBLS)
ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, dctbl);
/* Allocate and zero the statistics tables */
/* Note that jpeg_gen_optimal_table expects 257 entries in each table! */
if (entropy->count_ptrs[dctbl] == NULL)
entropy->count_ptrs[dctbl] = (long *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
257 * sizeof(long));
memset(entropy->count_ptrs[dctbl], 0, 257 * sizeof(long));
#endif
} else {
/* Compute derived values for Huffman tables */
/* We may do this more than once for a table, but it's not expensive */
jpeg_make_c_derived_tbl(cinfo, TRUE, dctbl,
&entropy->derived_tbls[dctbl]);
}
}
/* Precalculate encoding info for each sample in an MCU of this scan */
for (sampn = 0, ptrn = 0; sampn < cinfo->blocks_in_MCU;) {
compptr = cinfo->cur_comp_info[cinfo->MCU_membership[sampn]];
ci = compptr->component_index;
for (yoffset = 0; yoffset < compptr->MCU_height; yoffset++, ptrn++) {
/* Precalculate the setup info for each input pointer */
entropy->input_ptr_info[ptrn].ci = ci;
entropy->input_ptr_info[ptrn].yoffset = yoffset;
entropy->input_ptr_info[ptrn].MCU_width = compptr->MCU_width;
for (xoffset = 0; xoffset < compptr->MCU_width; xoffset++, sampn++) {
/* Precalculate the input pointer index for each sample */
entropy->input_ptr_index[sampn] = ptrn;
/* Precalculate which tables to use for each sample */
entropy->cur_tbls[sampn] = entropy->derived_tbls[compptr->dc_tbl_no];
entropy->cur_counts[sampn] = entropy->count_ptrs[compptr->dc_tbl_no];
}
}
}
entropy->num_input_ptrs = ptrn;
/* Initialize bit buffer to empty */
entropy->saved.put_buffer = 0;
entropy->saved.put_bits = 0;
/* Initialize restart stuff */
entropy->restarts_to_go = cinfo->restart_interval;
entropy->next_restart_num = 0;
}
/* Outputting bytes to the file */
/* Emit a byte, taking 'action' if must suspend. */
#define emit_byte(state, val, action) { \
*(state)->next_output_byte++ = (JOCTET)(val); \
if (--(state)->free_in_buffer == 0) \
if (!dump_buffer(state)) \
{ action; } \
}
LOCAL(boolean)
dump_buffer(working_state *state)
/* Empty the output buffer; return TRUE if successful, FALSE if must suspend */
{
struct jpeg_destination_mgr *dest = state->cinfo->dest;
if (!(*dest->empty_output_buffer) (state->cinfo))
return FALSE;
/* After a successful buffer dump, must reset buffer pointers */
state->next_output_byte = dest->next_output_byte;
state->free_in_buffer = dest->free_in_buffer;
return TRUE;
}
/* Outputting bits to the file */
/* Only the right 24 bits of put_buffer are used; the valid bits are
* left-justified in this part. At most 16 bits can be passed to emit_bits
* in one call, and we never retain more than 7 bits in put_buffer
* between calls, so 24 bits are sufficient.
*/
INLINE
LOCAL(boolean)
emit_bits(working_state *state, unsigned int code, int size)
/* Emit some bits; return TRUE if successful, FALSE if must suspend */
{
/* This routine is heavily used, so it's worth coding tightly. */
register size_t put_buffer = (size_t)code;
register int put_bits = state->cur.put_bits;
/* if size is 0, caller used an invalid Huffman table entry */
if (size == 0)
ERREXIT(state->cinfo, JERR_HUFF_MISSING_CODE);
put_buffer &= (((size_t)1) << size) - 1; /* mask off any extra bits in code */
put_bits += size; /* new number of bits in buffer */
put_buffer <<= 24 - put_bits; /* align incoming bits */
put_buffer |= state->cur.put_buffer; /* and merge with old buffer contents */
while (put_bits >= 8) {
int c = (int)((put_buffer >> 16) & 0xFF);
emit_byte(state, c, return FALSE);
if (c == 0xFF) { /* need to stuff a zero byte? */
emit_byte(state, 0, return FALSE);
}
put_buffer <<= 8;
put_bits -= 8;
}
state->cur.put_buffer = put_buffer; /* update state variables */
state->cur.put_bits = put_bits;
return TRUE;
}
LOCAL(boolean)
flush_bits(working_state *state)
{
if (!emit_bits(state, 0x7F, 7)) /* fill any partial byte with ones */
return FALSE;
state->cur.put_buffer = 0; /* and reset bit-buffer to empty */
state->cur.put_bits = 0;
return TRUE;
}
/*
* Emit a restart marker & resynchronize predictions.
*/
LOCAL(boolean)
emit_restart(working_state *state, int restart_num)
{
if (!flush_bits(state))
return FALSE;
emit_byte(state, 0xFF, return FALSE);
emit_byte(state, JPEG_RST0 + restart_num, return FALSE);
/* The restart counter is not updated until we successfully write the MCU. */
return TRUE;
}
/*
* Encode and output nMCU MCUs' worth of Huffman-compressed differences.
*/
METHODDEF(JDIMENSION)
encode_mcus_huff(j_compress_ptr cinfo, JDIFFIMAGE diff_buf,
JDIMENSION MCU_row_num, JDIMENSION MCU_col_num,
JDIMENSION nMCU)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
working_state state;
int sampn, ci, yoffset, MCU_width, ptrn;
JDIMENSION mcu_num;
/* Load up working state */
state.next_output_byte = cinfo->dest->next_output_byte;
state.free_in_buffer = cinfo->dest->free_in_buffer;
state.cur = entropy->saved;
state.cinfo = cinfo;
/* Emit restart marker if needed */
if (cinfo->restart_interval) {
if (entropy->restarts_to_go == 0)
if (!emit_restart(&state, entropy->next_restart_num))
return 0;
}
/* Set input pointer locations based on MCU_col_num */
for (ptrn = 0; ptrn < entropy->num_input_ptrs; ptrn++) {
ci = entropy->input_ptr_info[ptrn].ci;
yoffset = entropy->input_ptr_info[ptrn].yoffset;
MCU_width = entropy->input_ptr_info[ptrn].MCU_width;
entropy->input_ptr[ptrn] =
diff_buf[ci][MCU_row_num + yoffset] + (MCU_col_num * MCU_width);
}
for (mcu_num = 0; mcu_num < nMCU; mcu_num++) {
/* Inner loop handles the samples in the MCU */
for (sampn = 0; sampn < cinfo->blocks_in_MCU; sampn++) {
register int temp, temp2;
register int nbits;
c_derived_tbl *dctbl = entropy->cur_tbls[sampn];
/* Encode the difference per section H.1.2.2 */
/* Input the sample difference */
temp = *entropy->input_ptr[entropy->input_ptr_index[sampn]]++;
if (temp & 0x8000) { /* instead of temp < 0 */
temp = (-temp) & 0x7FFF; /* absolute value, mod 2^16 */
if (temp == 0) /* special case: magnitude = 32768 */
temp2 = temp = 0x8000;
temp2 = ~temp; /* one's complement of magnitude */
} else {
temp &= 0x7FFF; /* abs value mod 2^16 */
temp2 = temp; /* magnitude */
}
/* Find the number of bits needed for the magnitude of the difference */
nbits = 0;
while (temp) {
nbits++;
temp >>= 1;
}
/* Check for out-of-range difference values.
*/
if (nbits > MAX_DIFF_BITS)
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
/* Emit the Huffman-coded symbol for the number of bits */
if (!emit_bits(&state, dctbl->ehufco[nbits], dctbl->ehufsi[nbits]))
return mcu_num;
/* Emit that number of bits of the value, if positive, */
/* or the complement of its magnitude, if negative. */
if (nbits && /* emit_bits rejects calls with size 0 */
nbits != 16) /* special case: no bits should be emitted */
if (!emit_bits(&state, (unsigned int)temp2, nbits))
return mcu_num;
}
/* Completed MCU, so update state */
cinfo->dest->next_output_byte = state.next_output_byte;
cinfo->dest->free_in_buffer = state.free_in_buffer;
entropy->saved = state.cur;
/* Update restart-interval state too */
if (cinfo->restart_interval) {
if (entropy->restarts_to_go == 0) {
entropy->restarts_to_go = cinfo->restart_interval;
entropy->next_restart_num++;
entropy->next_restart_num &= 7;
}
entropy->restarts_to_go--;
}
}
return nMCU;
}
/*
* Finish up at the end of a Huffman-compressed scan.
*/
METHODDEF(void)
finish_pass_huff(j_compress_ptr cinfo)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
working_state state;
/* Load up working state ... flush_bits needs it */
state.next_output_byte = cinfo->dest->next_output_byte;
state.free_in_buffer = cinfo->dest->free_in_buffer;
state.cur = entropy->saved;
state.cinfo = cinfo;
/* Flush out the last data */
if (!flush_bits(&state))
ERREXIT(cinfo, JERR_CANT_SUSPEND);
/* Update state */
cinfo->dest->next_output_byte = state.next_output_byte;
cinfo->dest->free_in_buffer = state.free_in_buffer;
entropy->saved = state.cur;
}
/*
* Huffman coding optimization.
*
* We first scan the supplied data and count the number of uses of each symbol
* that is to be Huffman-coded. (This process MUST agree with the code above.)
* Then we build a Huffman coding tree for the observed counts.
* Symbols which are not needed at all for the particular image are not
* assigned any code, which saves space in the DHT marker as well as in
* the compressed data.
*/
#ifdef ENTROPY_OPT_SUPPORTED
/*
* Trial-encode nMCU MCUs' worth of Huffman-compressed differences.
* No data is actually output, so no suspension return is possible.
*/
METHODDEF(JDIMENSION)
encode_mcus_gather(j_compress_ptr cinfo, JDIFFIMAGE diff_buf,
JDIMENSION MCU_row_num, JDIMENSION MCU_col_num,
JDIMENSION nMCU)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
int sampn, ci, yoffset, MCU_width, ptrn;
JDIMENSION mcu_num;
/* Take care of restart intervals if needed */
if (cinfo->restart_interval) {
if (entropy->restarts_to_go == 0) {
/* Update restart state */
entropy->restarts_to_go = cinfo->restart_interval;
}
entropy->restarts_to_go--;
}
/* Set input pointer locations based on MCU_col_num */
for (ptrn = 0; ptrn < entropy->num_input_ptrs; ptrn++) {
ci = entropy->input_ptr_info[ptrn].ci;
yoffset = entropy->input_ptr_info[ptrn].yoffset;
MCU_width = entropy->input_ptr_info[ptrn].MCU_width;
entropy->input_ptr[ptrn] =
diff_buf[ci][MCU_row_num + yoffset] + (MCU_col_num * MCU_width);
}
for (mcu_num = 0; mcu_num < nMCU; mcu_num++) {
/* Inner loop handles the samples in the MCU */
for (sampn = 0; sampn < cinfo->blocks_in_MCU; sampn++) {
register int temp;
register int nbits;
long *counts = entropy->cur_counts[sampn];
/* Encode the difference per section H.1.2.2 */
/* Input the sample difference */
temp = *entropy->input_ptr[entropy->input_ptr_index[sampn]]++;
if (temp & 0x8000) { /* instead of temp < 0 */
temp = (-temp) & 0x7FFF; /* absolute value, mod 2^16 */
if (temp == 0) /* special case: magnitude = 32768 */
temp = 0x8000;
} else
temp &= 0x7FFF; /* abs value mod 2^16 */
/* Find the number of bits needed for the magnitude of the difference */
nbits = 0;
while (temp) {
nbits++;
temp >>= 1;
}
/* Check for out-of-range difference values.
*/
if (nbits > MAX_DIFF_BITS)
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
/* Count the Huffman symbol for the number of bits */
counts[nbits]++;
}
}
return nMCU;
}
/*
* Finish up a statistics-gathering pass and create the new Huffman tables.
*/
METHODDEF(void)
finish_pass_gather(j_compress_ptr cinfo)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
int ci, dctbl;
jpeg_component_info *compptr;
JHUFF_TBL **htblptr;
boolean did_dc[NUM_HUFF_TBLS];
/* It's important not to apply jpeg_gen_optimal_table more than once
* per table, because it clobbers the input frequency counts!
*/
memset(did_dc, 0, sizeof(did_dc));
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
dctbl = compptr->dc_tbl_no;
if (!did_dc[dctbl]) {
htblptr = &cinfo->dc_huff_tbl_ptrs[dctbl];
if (*htblptr == NULL)
*htblptr = jpeg_alloc_huff_table((j_common_ptr)cinfo);
jpeg_gen_optimal_table(cinfo, *htblptr, entropy->count_ptrs[dctbl]);
did_dc[dctbl] = TRUE;
}
}
}
#endif /* ENTROPY_OPT_SUPPORTED */
/*
* Module initialization routine for Huffman entropy encoding.
*/
GLOBAL(void)
jinit_lhuff_encoder(j_compress_ptr cinfo)
{
lhuff_entropy_ptr entropy;
int i;
entropy = (lhuff_entropy_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(lhuff_entropy_encoder));
cinfo->entropy = (struct jpeg_entropy_encoder *)entropy;
entropy->pub.start_pass = start_pass_lhuff;
/* Mark tables unallocated */
for (i = 0; i < NUM_HUFF_TBLS; i++) {
entropy->derived_tbls[i] = NULL;
#ifdef ENTROPY_OPT_SUPPORTED
entropy->count_ptrs[i] = NULL;
#endif
}
}
#endif /* C_LOSSLESS_SUPPORTED */

View File

@@ -1,319 +0,0 @@
/*
* jclossls.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1998, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains prediction, sample differencing, and point transform
* routines for the lossless JPEG compressor.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jlossls.h"
#ifdef C_LOSSLESS_SUPPORTED
/************************** Sample differencing **************************/
/*
* In order to avoid a performance penalty for checking which predictor is
* being used and which row is being processed for each call of the
* undifferencer, and to promote optimization, we have separate differencing
* functions for each predictor selection value.
*
* We are able to avoid duplicating source code by implementing the predictors
* and differencers as macros. Each of the differencing functions is simply a
* wrapper around a DIFFERENCE macro with the appropriate PREDICTOR macro
* passed as an argument.
*/
/* Forward declarations */
LOCAL(void) reset_predictor(j_compress_ptr cinfo, int ci);
/* Predictor for the first column of the first row: 2^(P-Pt-1) */
#define INITIAL_PREDICTORx (1 << (cinfo->data_precision - cinfo->Al - 1))
/* Predictor for the first column of the remaining rows: Rb */
#define INITIAL_PREDICTOR2 prev_row[0]
/*
* 1-Dimensional differencer routine.
*
* This macro implements the 1-D horizontal predictor (1). INITIAL_PREDICTOR
* is used as the special case predictor for the first column, which must be
* either INITIAL_PREDICTOR2 or INITIAL_PREDICTORx. The remaining samples
* use PREDICTOR1.
*/
#define DIFFERENCE_1D(INITIAL_PREDICTOR) \
lossless_comp_ptr losslessc = (lossless_comp_ptr)cinfo->fdct; \
boolean restart = FALSE; \
int samp, Ra; \
\
samp = *input_buf++; \
*diff_buf++ = samp - INITIAL_PREDICTOR; \
\
while (--width) { \
Ra = samp; \
samp = *input_buf++; \
*diff_buf++ = samp - PREDICTOR1; \
} \
\
/* Account for restart interval (no-op if not using restarts) */ \
if (cinfo->restart_interval) { \
if (--(losslessc->restart_rows_to_go[ci]) == 0) { \
reset_predictor(cinfo, ci); \
restart = TRUE; \
} \
}
/*
* 2-Dimensional differencer routine.
*
* This macro implements the 2-D horizontal predictors (#2-7). PREDICTOR2 is
* used as the special case predictor for the first column. The remaining
* samples use PREDICTOR, which is a function of Ra, Rb, and Rc.
*
* Because prev_row and output_buf may point to the same storage area (in an
* interleaved image with Vi=1, for example), we must take care to buffer Rb/Rc
* before writing the current reconstructed sample value into output_buf.
*/
#define DIFFERENCE_2D(PREDICTOR) \
lossless_comp_ptr losslessc = (lossless_comp_ptr)cinfo->fdct; \
int samp, Ra, Rb, Rc; \
\
Rb = *prev_row++; \
samp = *input_buf++; \
*diff_buf++ = samp - PREDICTOR2; \
\
while (--width) { \
Rc = Rb; \
Rb = *prev_row++; \
Ra = samp; \
samp = *input_buf++; \
*diff_buf++ = samp - PREDICTOR; \
} \
\
/* Account for restart interval (no-op if not using restarts) */ \
if (cinfo->restart_interval) { \
if (--losslessc->restart_rows_to_go[ci] == 0) \
reset_predictor(cinfo, ci); \
}
/*
* Differencers for the second and subsequent rows in a scan or restart
* interval. The first sample in the row is differenced using the vertical
* predictor (2). The rest of the samples are differenced using the predictor
* specified in the scan header.
*/
METHODDEF(void)
jpeg_difference1(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_1D(INITIAL_PREDICTOR2);
(void)(restart);
}
METHODDEF(void)
jpeg_difference2(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_2D(PREDICTOR2);
(void)(Ra);
(void)(Rc);
}
METHODDEF(void)
jpeg_difference3(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_2D(PREDICTOR3);
(void)(Ra);
}
METHODDEF(void)
jpeg_difference4(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_2D(PREDICTOR4);
}
METHODDEF(void)
jpeg_difference5(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_2D(PREDICTOR5);
}
METHODDEF(void)
jpeg_difference6(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_2D(PREDICTOR6);
}
METHODDEF(void)
jpeg_difference7(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_2D(PREDICTOR7);
(void)(Rc);
}
/*
* Differencer for the first row in a scan or restart interval. The first
* sample in the row is differenced using the special predictor constant
* x = 2 ^ (P-Pt-1). The rest of the samples are differenced using the
* 1-D horizontal predictor (1).
*/
METHODDEF(void)
jpeg_difference_first_row(j_compress_ptr cinfo, int ci,
_JSAMPROW input_buf, _JSAMPROW prev_row,
JDIFFROW diff_buf, JDIMENSION width)
{
DIFFERENCE_1D(INITIAL_PREDICTORx);
/*
* Now that we have differenced the first row, we want to use the
* differencer that corresponds to the predictor specified in the
* scan header.
*
* Note that we don't do this if we have just reset the predictor
* for a new restart interval.
*/
if (!restart) {
switch (cinfo->Ss) {
case 1:
losslessc->predict_difference[ci] = jpeg_difference1;
break;
case 2:
losslessc->predict_difference[ci] = jpeg_difference2;
break;
case 3:
losslessc->predict_difference[ci] = jpeg_difference3;
break;
case 4:
losslessc->predict_difference[ci] = jpeg_difference4;
break;
case 5:
losslessc->predict_difference[ci] = jpeg_difference5;
break;
case 6:
losslessc->predict_difference[ci] = jpeg_difference6;
break;
case 7:
losslessc->predict_difference[ci] = jpeg_difference7;
break;
}
}
}
/*
* Reset predictor at the start of a pass or restart interval.
*/
LOCAL(void)
reset_predictor(j_compress_ptr cinfo, int ci)
{
lossless_comp_ptr losslessc = (lossless_comp_ptr)cinfo->fdct;
/* Initialize restart counter */
losslessc->restart_rows_to_go[ci] =
cinfo->restart_interval / cinfo->MCUs_per_row;
/* Set difference function to first row function */
losslessc->predict_difference[ci] = jpeg_difference_first_row;
}
/********************** Sample downscaling by 2^Pt ***********************/
METHODDEF(void)
simple_downscale(j_compress_ptr cinfo,
_JSAMPROW input_buf, _JSAMPROW output_buf, JDIMENSION width)
{
do {
*output_buf++ = (_JSAMPLE)RIGHT_SHIFT(*input_buf++, cinfo->Al);
} while (--width);
}
METHODDEF(void)
noscale(j_compress_ptr cinfo,
_JSAMPROW input_buf, _JSAMPROW output_buf, JDIMENSION width)
{
memcpy(output_buf, input_buf, width * sizeof(_JSAMPLE));
}
/*
* Initialize for a processing pass.
*/
METHODDEF(void)
start_pass_lossless(j_compress_ptr cinfo)
{
lossless_comp_ptr losslessc = (lossless_comp_ptr)cinfo->fdct;
int ci;
/* Set scaler function based on Pt */
if (cinfo->Al)
losslessc->scaler_scale = simple_downscale;
else
losslessc->scaler_scale = noscale;
/* Check that the restart interval is an integer multiple of the number
* of MCUs in an MCU row.
*/
if (cinfo->restart_interval % cinfo->MCUs_per_row != 0)
ERREXIT2(cinfo, JERR_BAD_RESTART,
cinfo->restart_interval, cinfo->MCUs_per_row);
/* Set predictors for start of pass */
for (ci = 0; ci < cinfo->num_components; ci++)
reset_predictor(cinfo, ci);
}
/*
* Initialize the lossless compressor.
*/
GLOBAL(void)
_jinit_lossless_compressor(j_compress_ptr cinfo)
{
lossless_comp_ptr losslessc;
/* Create subobject in permanent pool */
losslessc = (lossless_comp_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT,
sizeof(jpeg_lossless_compressor));
cinfo->fdct = (struct jpeg_forward_dct *)losslessc;
losslessc->pub.start_pass = start_pass_lossless;
}
#endif /* C_LOSSLESS_SUPPORTED */

View File

@@ -3,10 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* It was modified by The libjpeg-turbo Project to include only code relevant
* to libjpeg-turbo.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -18,11 +16,8 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsamplecomp.h"
#if BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED)
/* Private buffer controller object */
typedef struct {
@@ -37,7 +32,7 @@ typedef struct {
* (we allocate one for each component). In the full-image case, this
* points to the currently accessible strips of the virtual arrays.
*/
_JSAMPARRAY buffer[MAX_COMPONENTS];
JSAMPARRAY buffer[MAX_COMPONENTS];
} my_main_controller;
typedef my_main_controller *my_main_ptr;
@@ -45,7 +40,7 @@ typedef my_main_controller *my_main_ptr;
/* Forward declarations */
METHODDEF(void) process_data_simple_main(j_compress_ptr cinfo,
_JSAMPARRAY input_buf,
JSAMPARRAY input_buf,
JDIMENSION *in_row_ctr,
JDIMENSION in_rows_avail);
@@ -70,7 +65,7 @@ start_pass_main(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
main_ptr->rowgroup_ctr = 0;
main_ptr->suspended = FALSE;
main_ptr->pass_mode = pass_mode; /* save mode for use by process_data */
main_ptr->pub._process_data = process_data_simple_main;
main_ptr->pub.process_data = process_data_simple_main;
}
@@ -81,28 +76,28 @@ start_pass_main(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
*/
METHODDEF(void)
process_data_simple_main(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
process_data_simple_main(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)
{
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
JDIMENSION data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
while (main_ptr->cur_iMCU_row < cinfo->total_iMCU_rows) {
/* Read input data if we haven't filled the main buffer yet */
if (main_ptr->rowgroup_ctr < data_unit)
(*cinfo->prep->_pre_process_data) (cinfo, input_buf, in_row_ctr,
in_rows_avail, main_ptr->buffer,
&main_ptr->rowgroup_ctr, data_unit);
if (main_ptr->rowgroup_ctr < DCTSIZE)
(*cinfo->prep->pre_process_data) (cinfo, input_buf, in_row_ctr,
in_rows_avail, main_ptr->buffer,
&main_ptr->rowgroup_ctr,
(JDIMENSION)DCTSIZE);
/* If we don't have a full iMCU row buffered, return to application for
* more data. Note that preprocessor will always pad to fill the iMCU row
* at the bottom of the image.
*/
if (main_ptr->rowgroup_ctr != data_unit)
if (main_ptr->rowgroup_ctr != DCTSIZE)
return;
/* Send the completed row to the compressor */
if (!(*cinfo->coef->_compress_data) (cinfo, main_ptr->buffer)) {
if (!(*cinfo->coef->compress_data) (cinfo, main_ptr->buffer)) {
/* If compressor did not consume the whole row, then we must need to
* suspend processing and return to the application. In this situation
* we pretend we didn't yet consume the last input row; otherwise, if
@@ -133,15 +128,11 @@ process_data_simple_main(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
GLOBAL(void)
_jinit_c_main_controller(j_compress_ptr cinfo, boolean need_full_buffer)
jinit_c_main_controller(j_compress_ptr cinfo, boolean need_full_buffer)
{
my_main_ptr main_ptr;
int ci;
jpeg_component_info *compptr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
main_ptr = (my_main_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
@@ -162,12 +153,10 @@ _jinit_c_main_controller(j_compress_ptr cinfo, boolean need_full_buffer)
/* Allocate a strip buffer for each component */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
main_ptr->buffer[ci] = (_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
main_ptr->buffer[ci] = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
compptr->width_in_blocks * data_unit,
(JDIMENSION)(compptr->v_samp_factor * data_unit));
compptr->width_in_blocks * DCTSIZE,
(JDIMENSION)(compptr->v_samp_factor * DCTSIZE));
}
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED) */

View File

@@ -4,10 +4,8 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1998, Thomas G. Lane.
* Modified 2003-2010 by Guido Vollbeding.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2022, D. R. Commander.
* Copyright (C) 2010, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -17,7 +15,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
typedef enum { /* JPEG marker codes */
@@ -499,26 +497,25 @@ write_file_header(j_compress_ptr cinfo)
METHODDEF(void)
write_frame_header(j_compress_ptr cinfo)
{
int ci, prec = 0;
int ci, prec;
boolean is_baseline;
jpeg_component_info *compptr;
if (!cinfo->master->lossless) {
/* Emit DQT for each quantization table.
* Note that emit_dqt() suppresses any duplicate tables.
*/
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
prec += emit_dqt(cinfo, compptr->quant_tbl_no);
}
/* now prec is nonzero iff there are any 16-bit quant tables. */
/* Emit DQT for each quantization table.
* Note that emit_dqt() suppresses any duplicate tables.
*/
prec = 0;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
prec += emit_dqt(cinfo, compptr->quant_tbl_no);
}
/* now prec is nonzero iff there are any 16-bit quant tables. */
/* Check for a non-baseline specification.
* Note we assume that Huffman table numbers won't be changed later.
*/
if (cinfo->arith_code || cinfo->progressive_mode ||
cinfo->master->lossless || cinfo->data_precision != 8) {
cinfo->data_precision != 8) {
is_baseline = FALSE;
} else {
is_baseline = TRUE;
@@ -543,8 +540,6 @@ write_frame_header(j_compress_ptr cinfo)
} else {
if (cinfo->progressive_mode)
emit_sof(cinfo, M_SOF2); /* SOF code for progressive Huffman */
else if (cinfo->master->lossless)
emit_sof(cinfo, M_SOF3); /* SOF code for lossless Huffman */
else if (is_baseline)
emit_sof(cinfo, M_SOF0); /* SOF code for baseline implementation */
else
@@ -579,11 +574,10 @@ write_scan_header(j_compress_ptr cinfo)
for (i = 0; i < cinfo->comps_in_scan; i++) {
compptr = cinfo->cur_comp_info[i];
/* DC needs no table for refinement scan */
if ((cinfo->Ss == 0 && cinfo->Ah == 0) || cinfo->master->lossless)
if (cinfo->Ss == 0 && cinfo->Ah == 0)
emit_dht(cinfo, compptr->dc_tbl_no, FALSE);
/* AC needs no table when not present, and lossless mode uses only DC
tables. */
if (cinfo->Se && !cinfo->master->lossless)
/* AC needs no table when not present */
if (cinfo->Se)
emit_dht(cinfo, compptr->ac_tbl_no, TRUE);
}
}

View File

@@ -4,10 +4,8 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modified 2003-2010 by Guido Vollbeding.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2016, 2018, 2022-2024, D. R. Commander.
* Copyright (C) 2010, 2016, 2018, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -20,8 +18,40 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jcmaster.h"
#include "jpegcomp.h"
#include "jconfigint.h"
/* Private state */
typedef enum {
main_pass, /* input data, also do first output step */
huff_opt_pass, /* Huffman code optimization pass */
output_pass /* data output pass */
} c_pass_type;
typedef struct {
struct jpeg_comp_master pub; /* public fields */
c_pass_type pass_type; /* the type of the current pass */
int pass_number; /* # of passes completed */
int total_passes; /* total # of passes needed */
int scan_number; /* current index in scan_info[] */
/*
* This is here so we can add libjpeg-turbo version/build information to the
* global string table without introducing a new global symbol. Adding this
* information to the global string table allows one to examine a binary
* object and determine which version of libjpeg-turbo it was built from or
* linked against.
*/
const char *jpeg_version;
} my_comp_master;
typedef my_comp_master *my_master_ptr;
/*
@@ -39,124 +69,15 @@ GLOBAL(void)
jpeg_calc_jpeg_dimensions(j_compress_ptr cinfo)
/* Do computations that are needed before master selection phase */
{
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
/* Hardwire it to "no scaling" */
cinfo->jpeg_width = cinfo->image_width;
cinfo->jpeg_height = cinfo->image_height;
cinfo->min_DCT_h_scaled_size = data_unit;
cinfo->min_DCT_v_scaled_size = data_unit;
cinfo->min_DCT_h_scaled_size = DCTSIZE;
cinfo->min_DCT_v_scaled_size = DCTSIZE;
}
#endif
LOCAL(boolean)
using_std_huff_tables(j_compress_ptr cinfo)
{
int i;
static const UINT8 bits_dc_luminance[17] = {
/* 0-base */ 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0
};
static const UINT8 val_dc_luminance[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};
static const UINT8 bits_dc_chrominance[17] = {
/* 0-base */ 0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0
};
static const UINT8 val_dc_chrominance[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};
static const UINT8 bits_ac_luminance[17] = {
/* 0-base */ 0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d
};
static const UINT8 val_ac_luminance[] = {
0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
0xf9, 0xfa
};
static const UINT8 bits_ac_chrominance[17] = {
/* 0-base */ 0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77
};
static const UINT8 val_ac_chrominance[] = {
0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0,
0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34,
0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26,
0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38,
0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96,
0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4,
0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3,
0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2,
0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda,
0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
0xf9, 0xfa
};
if (cinfo->dc_huff_tbl_ptrs[0] == NULL ||
cinfo->ac_huff_tbl_ptrs[0] == NULL ||
cinfo->dc_huff_tbl_ptrs[1] == NULL ||
cinfo->ac_huff_tbl_ptrs[1] == NULL)
return FALSE;
for (i = 2; i < NUM_HUFF_TBLS; i++) {
if (cinfo->dc_huff_tbl_ptrs[i] != NULL ||
cinfo->ac_huff_tbl_ptrs[i] != NULL)
return FALSE;
}
if (memcmp(cinfo->dc_huff_tbl_ptrs[0]->bits, bits_dc_luminance,
sizeof(bits_dc_luminance)) ||
memcmp(cinfo->dc_huff_tbl_ptrs[0]->huffval, val_dc_luminance,
sizeof(val_dc_luminance)) ||
memcmp(cinfo->ac_huff_tbl_ptrs[0]->bits, bits_ac_luminance,
sizeof(bits_ac_luminance)) ||
memcmp(cinfo->ac_huff_tbl_ptrs[0]->huffval, val_ac_luminance,
sizeof(val_ac_luminance)) ||
memcmp(cinfo->dc_huff_tbl_ptrs[1]->bits, bits_dc_chrominance,
sizeof(bits_dc_chrominance)) ||
memcmp(cinfo->dc_huff_tbl_ptrs[1]->huffval, val_dc_chrominance,
sizeof(val_dc_chrominance)) ||
memcmp(cinfo->ac_huff_tbl_ptrs[1]->bits, bits_ac_chrominance,
sizeof(bits_ac_chrominance)) ||
memcmp(cinfo->ac_huff_tbl_ptrs[1]->huffval, val_ac_chrominance,
sizeof(val_ac_chrominance)))
return FALSE;
return TRUE;
}
LOCAL(void)
initial_setup(j_compress_ptr cinfo, boolean transcode_only)
/* Do computations that are needed before master selection phase */
@@ -165,7 +86,6 @@ initial_setup(j_compress_ptr cinfo, boolean transcode_only)
jpeg_component_info *compptr;
long samplesperrow;
JDIMENSION jd_samplesperrow;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
#if JPEG_LIB_VERSION >= 70
#if JPEG_LIB_VERSION >= 80
@@ -190,12 +110,8 @@ initial_setup(j_compress_ptr cinfo, boolean transcode_only)
if ((long)jd_samplesperrow != samplesperrow)
ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
#ifdef C_LOSSLESS_SUPPORTED
if (cinfo->data_precision != 8 && cinfo->data_precision != 12 &&
cinfo->data_precision != 16)
#else
if (cinfo->data_precision != 8 && cinfo->data_precision != 12)
#endif
/* For now, precision must match compiled-in value... */
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
/* Check that number of components won't exceed internal array sizes */
@@ -226,17 +142,17 @@ initial_setup(j_compress_ptr cinfo, boolean transcode_only)
compptr->component_index = ci;
/* For compression, we never do DCT scaling. */
#if JPEG_LIB_VERSION >= 70
compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = data_unit;
compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = DCTSIZE;
#else
compptr->DCT_scaled_size = data_unit;
compptr->DCT_scaled_size = DCTSIZE;
#endif
/* Size in data units */
/* Size in DCT blocks */
compptr->width_in_blocks = (JDIMENSION)
jdiv_round_up((long)cinfo->_jpeg_width * (long)compptr->h_samp_factor,
(long)(cinfo->max_h_samp_factor * data_unit));
(long)(cinfo->max_h_samp_factor * DCTSIZE));
compptr->height_in_blocks = (JDIMENSION)
jdiv_round_up((long)cinfo->_jpeg_height * (long)compptr->v_samp_factor,
(long)(cinfo->max_v_samp_factor * data_unit));
(long)(cinfo->max_v_samp_factor * DCTSIZE));
/* Size in samples */
compptr->downsampled_width = (JDIMENSION)
jdiv_round_up((long)cinfo->_jpeg_width * (long)compptr->h_samp_factor,
@@ -249,19 +165,15 @@ initial_setup(j_compress_ptr cinfo, boolean transcode_only)
}
/* Compute number of fully interleaved MCU rows (number of times that
* main controller will call coefficient or difference controller).
* main controller will call coefficient controller).
*/
cinfo->total_iMCU_rows = (JDIMENSION)
jdiv_round_up((long)cinfo->_jpeg_height,
(long)(cinfo->max_v_samp_factor * data_unit));
(long)(cinfo->max_v_samp_factor * DCTSIZE));
}
#if defined(C_MULTISCAN_FILES_SUPPORTED) || defined(C_LOSSLESS_SUPPORTED)
#define NEED_SCAN_SCRIPT
#endif
#ifdef NEED_SCAN_SCRIPT
#ifdef C_MULTISCAN_FILES_SUPPORTED
LOCAL(void)
validate_script(j_compress_ptr cinfo)
@@ -282,29 +194,13 @@ validate_script(j_compress_ptr cinfo)
if (cinfo->num_scans <= 0)
ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, 0);
#ifndef C_MULTISCAN_FILES_SUPPORTED
if (cinfo->num_scans > 1)
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
scanptr = cinfo->scan_info;
if (scanptr->Ss != 0 && scanptr->Se == 0) {
#ifdef C_LOSSLESS_SUPPORTED
cinfo->master->lossless = TRUE;
cinfo->progressive_mode = FALSE;
for (ci = 0; ci < cinfo->num_components; ci++)
component_sent[ci] = FALSE;
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
}
/* For sequential JPEG, all scans must have Ss=0, Se=DCTSIZE2-1;
* for progressive JPEG, no scan can have this.
*/
else if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2 - 1) {
scanptr = cinfo->scan_info;
if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2 - 1) {
#ifdef C_PROGRESSIVE_SUPPORTED
cinfo->progressive_mode = TRUE;
cinfo->master->lossless = FALSE;
last_bitpos_ptr = &last_bitpos[0][0];
for (ci = 0; ci < cinfo->num_components; ci++)
for (coefi = 0; coefi < DCTSIZE2; coefi++)
@@ -313,7 +209,7 @@ validate_script(j_compress_ptr cinfo)
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else {
cinfo->progressive_mode = cinfo->master->lossless = FALSE;
cinfo->progressive_mode = FALSE;
for (ci = 0; ci < cinfo->num_components; ci++)
component_sent[ci] = FALSE;
}
@@ -345,10 +241,13 @@ validate_script(j_compress_ptr cinfo)
* out-of-range reconstructed DC values during the first DC scan,
* which might cause problems for some decoders.
*/
int max_Ah_Al = cinfo->data_precision == 12 ? 13 : 10;
#if BITS_IN_JSAMPLE == 8
#define MAX_AH_AL 10
#else
#define MAX_AH_AL 13
#endif
if (Ss < 0 || Ss >= DCTSIZE2 || Se < Ss || Se >= DCTSIZE2 ||
Ah < 0 || Ah > max_Ah_Al || Al < 0 || Al > max_Ah_Al)
Ah < 0 || Ah > MAX_AH_AL || Al < 0 || Al > MAX_AH_AL)
ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
if (Ss == 0) {
if (Se != 0) /* DC and AC together not OK */
@@ -376,25 +275,9 @@ validate_script(j_compress_ptr cinfo)
}
#endif
} else {
#ifdef C_LOSSLESS_SUPPORTED
if (cinfo->master->lossless) {
/* The JPEG spec simply gives the range 0..15 for Al (Pt), but that
* seems wrong: the upper bound ought to depend on data precision.
* Perhaps they really meant 0..N-1 for N-bit precision, which is what
* we allow here. Values greater than or equal to the data precision
* will result in a blank image.
*/
if (Ss < 1 || Ss > 7 || /* predictor selection value */
Se != 0 || Ah != 0 ||
Al < 0 || Al >= cinfo->data_precision) /* point transform */
ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
} else
#endif
{
/* For sequential JPEG, all progression parameters must be these: */
if (Ss != 0 || Se != DCTSIZE2 - 1 || Ah != 0 || Al != 0)
ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
}
/* For sequential JPEG, all progression parameters must be these: */
if (Ss != 0 || Se != DCTSIZE2 - 1 || Ah != 0 || Al != 0)
ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
/* Make sure components are not sent twice */
for (ci = 0; ci < ncomps; ci++) {
thisi = scanptr->component_index[ci];
@@ -426,7 +309,7 @@ validate_script(j_compress_ptr cinfo)
}
}
#endif /* NEED_SCAN_SCRIPT */
#endif /* C_MULTISCAN_FILES_SUPPORTED */
LOCAL(void)
@@ -435,7 +318,7 @@ select_scan_parameters(j_compress_ptr cinfo)
{
int ci;
#ifdef NEED_SCAN_SCRIPT
#ifdef C_MULTISCAN_FILES_SUPPORTED
if (cinfo->scan_info != NULL) {
/* Prepare for current scan --- the script is already validated */
my_master_ptr master = (my_master_ptr)cinfo->master;
@@ -461,12 +344,10 @@ select_scan_parameters(j_compress_ptr cinfo)
for (ci = 0; ci < cinfo->num_components; ci++) {
cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci];
}
if (!cinfo->master->lossless) {
cinfo->Ss = 0;
cinfo->Se = DCTSIZE2 - 1;
cinfo->Ah = 0;
cinfo->Al = 0;
}
cinfo->Ss = 0;
cinfo->Se = DCTSIZE2 - 1;
cinfo->Ah = 0;
cinfo->Al = 0;
}
}
@@ -478,7 +359,6 @@ per_scan_setup(j_compress_ptr cinfo)
{
int ci, mcublks, tmp;
jpeg_component_info *compptr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
if (cinfo->comps_in_scan == 1) {
@@ -493,7 +373,7 @@ per_scan_setup(j_compress_ptr cinfo)
compptr->MCU_width = 1;
compptr->MCU_height = 1;
compptr->MCU_blocks = 1;
compptr->MCU_sample_width = data_unit;
compptr->MCU_sample_width = DCTSIZE;
compptr->last_col_width = 1;
/* For noninterleaved scans, it is convenient to define last_row_height
* as the number of block rows present in the last iMCU row.
@@ -516,10 +396,10 @@ per_scan_setup(j_compress_ptr cinfo)
/* Overall image size in MCUs */
cinfo->MCUs_per_row = (JDIMENSION)
jdiv_round_up((long)cinfo->_jpeg_width,
(long)(cinfo->max_h_samp_factor * data_unit));
(long)(cinfo->max_h_samp_factor * DCTSIZE));
cinfo->MCU_rows_in_scan = (JDIMENSION)
jdiv_round_up((long)cinfo->_jpeg_height,
(long)(cinfo->max_v_samp_factor * data_unit));
(long)(cinfo->max_v_samp_factor * DCTSIZE));
cinfo->blocks_in_MCU = 0;
@@ -529,7 +409,7 @@ per_scan_setup(j_compress_ptr cinfo)
compptr->MCU_width = compptr->h_samp_factor;
compptr->MCU_height = compptr->v_samp_factor;
compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height;
compptr->MCU_sample_width = compptr->MCU_width * data_unit;
compptr->MCU_sample_width = compptr->MCU_width * DCTSIZE;
/* Figure number of non-dummy blocks in last MCU column & row */
tmp = (int)(compptr->width_in_blocks % compptr->MCU_width);
if (tmp == 0) tmp = compptr->MCU_width;
@@ -601,8 +481,7 @@ prepare_for_pass(j_compress_ptr cinfo)
/* Do Huffman optimization for a scan after the first one. */
select_scan_parameters(cinfo);
per_scan_setup(cinfo);
if (cinfo->Ss != 0 || cinfo->Ah == 0 || cinfo->arith_code ||
cinfo->master->lossless) {
if (cinfo->Ss != 0 || cinfo->Ah == 0 || cinfo->arith_code) {
(*cinfo->entropy->start_pass) (cinfo, TRUE);
(*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST);
master->pub.call_pass_startup = FALSE;
@@ -711,17 +590,22 @@ finish_pass_master(j_compress_ptr cinfo)
GLOBAL(void)
jinit_c_master_control(j_compress_ptr cinfo, boolean transcode_only)
{
my_master_ptr master = (my_master_ptr)cinfo->master;
boolean empty_huff_tables = TRUE;
int i;
my_master_ptr master;
master = (my_master_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_comp_master));
cinfo->master = (struct jpeg_comp_master *)master;
master->pub.prepare_for_pass = prepare_for_pass;
master->pub.pass_startup = pass_startup;
master->pub.finish_pass = finish_pass_master;
master->pub.is_last_pass = FALSE;
/* Validate parameters, determine derived values */
initial_setup(cinfo, transcode_only);
if (cinfo->scan_info != NULL) {
#ifdef NEED_SCAN_SCRIPT
#ifdef C_MULTISCAN_FILES_SUPPORTED
validate_script(cinfo);
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
@@ -731,42 +615,8 @@ jinit_c_master_control(j_compress_ptr cinfo, boolean transcode_only)
cinfo->num_scans = 1;
}
/* Disable smoothing and subsampling in lossless mode, since those are lossy
* algorithms. Set the JPEG colorspace to the input colorspace. Disable raw
* (downsampled) data input, because it isn't particularly useful without
* subsampling and has not been tested in lossless mode.
*/
if (cinfo->master->lossless) {
int ci;
jpeg_component_info *compptr;
cinfo->raw_data_in = FALSE;
cinfo->smoothing_factor = 0;
jpeg_default_colorspace(cinfo);
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++)
compptr->h_samp_factor = compptr->v_samp_factor = 1;
}
/* Validate parameters, determine derived values */
initial_setup(cinfo, transcode_only);
if (cinfo->master->lossless || /* TEMPORARY HACK ??? */
(cinfo->progressive_mode && !cinfo->arith_code))
cinfo->optimize_coding = TRUE; /* assume default tables no good for
progressive mode or lossless mode */
for (i = 0; i < NUM_HUFF_TBLS; i++) {
if (cinfo->dc_huff_tbl_ptrs[i] != NULL ||
cinfo->ac_huff_tbl_ptrs[i] != NULL) {
empty_huff_tables = FALSE;
break;
}
}
if (cinfo->data_precision == 12 && !cinfo->arith_code &&
!cinfo->optimize_coding &&
(empty_huff_tables || using_std_huff_tables(cinfo)))
cinfo->optimize_coding = TRUE; /* assume default tables no good for 12-bit
data precision */
if (cinfo->progressive_mode && !cinfo->arith_code) /* TEMPORARY HACK ??? */
cinfo->optimize_coding = TRUE; /* assume default tables no good for progressive mode */
/* Initialize my private state */
if (transcode_only) {

View File

@@ -1,43 +0,0 @@
/*
* jcmaster.h
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1995, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2016, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains master control structure for the JPEG compressor.
*/
/* Private state */
typedef enum {
main_pass, /* input data, also do first output step */
huff_opt_pass, /* Huffman code optimization pass */
output_pass /* data output pass */
} c_pass_type;
typedef struct {
struct jpeg_comp_master pub; /* public fields */
c_pass_type pass_type; /* the type of the current pass */
int pass_number; /* # of passes completed */
int total_passes; /* total # of passes needed */
int scan_number; /* current index in scan_info[] */
/*
* This is here so we can add libjpeg-turbo version/build information to the
* global string table without introducing a new global symbol. Adding this
* information to the global string table allows one to examine a binary
* object and determine which version of libjpeg-turbo it was built from or
* linked against.
*/
const char *jpeg_version;
} my_comp_master;
typedef my_comp_master *my_master_ptr;

View File

@@ -4,10 +4,8 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1998, Thomas G. Lane.
* Modified 2003-2008 by Guido Vollbeding.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2009-2011, 2018, 2023, D. R. Commander.
* Copyright (C) 2009-2011, 2018, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -204,6 +202,7 @@ jpeg_set_defaults(j_compress_ptr cinfo)
cinfo->scale_num = 1; /* 1:1 scaling */
cinfo->scale_denom = 1;
#endif
cinfo->data_precision = BITS_IN_JSAMPLE;
/* Set up two quantization tables using default quality of 75 */
jpeg_set_quality(cinfo, 75, TRUE);
/* Set up two Huffman tables */
@@ -233,7 +232,7 @@ jpeg_set_defaults(j_compress_ptr cinfo)
* tables will be computed. This test can be removed if default tables
* are supplied that are valid for the desired precision.
*/
if (cinfo->data_precision == 12 && !cinfo->arith_code)
if (cinfo->data_precision > 8)
cinfo->optimize_coding = TRUE;
/* By default, use the simpler non-cosited sampling alignment */
@@ -297,10 +296,7 @@ jpeg_default_colorspace(j_compress_ptr cinfo)
case JCS_EXT_BGRA:
case JCS_EXT_ABGR:
case JCS_EXT_ARGB:
if (cinfo->master->lossless)
jpeg_set_colorspace(cinfo, JCS_RGB);
else
jpeg_set_colorspace(cinfo, JCS_YCbCr);
jpeg_set_colorspace(cinfo, JCS_YCbCr);
break;
case JCS_YCbCr:
jpeg_set_colorspace(cinfo, JCS_YCbCr);
@@ -479,11 +475,6 @@ jpeg_simple_progression(j_compress_ptr cinfo)
if (cinfo->global_state != CSTATE_START)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
if (cinfo->master->lossless) {
cinfo->master->lossless = FALSE;
jpeg_default_colorspace(cinfo);
}
/* Figure space needed for script. Calculation must match code below! */
if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {
/* Custom script for YCbCr color images. */
@@ -548,38 +539,3 @@ jpeg_simple_progression(j_compress_ptr cinfo)
}
#endif /* C_PROGRESSIVE_SUPPORTED */
#ifdef C_LOSSLESS_SUPPORTED
/*
* Enable lossless mode.
*/
GLOBAL(void)
jpeg_enable_lossless(j_compress_ptr cinfo, int predictor_selection_value,
int point_transform)
{
/* Safety check to ensure start_compress not called yet. */
if (cinfo->global_state != CSTATE_START)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
cinfo->master->lossless = TRUE;
cinfo->Ss = predictor_selection_value;
cinfo->Se = 0;
cinfo->Ah = 0;
cinfo->Al = point_transform;
/* The JPEG spec simply gives the range 0..15 for Al (Pt), but that seems
* wrong: the upper bound ought to depend on data precision. Perhaps they
* really meant 0..N-1 for N-bit precision, which is what we allow here.
* Values greater than or equal to the data precision will result in a blank
* image.
*/
if (cinfo->Ss < 1 || cinfo->Ss > 7 ||
cinfo->Al < 0 || cinfo->Al >= cinfo->data_precision)
ERREXIT4(cinfo, JERR_BAD_PROGRESSION,
cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
}
#endif /* C_LOSSLESS_SUPPORTED */

View File

@@ -3,11 +3,9 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1995-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2011, 2015, 2018, 2021-2022, 2024, D. R. Commander.
* Copyright (C) 2016, 2018, 2022, Matthieu Darbois.
* Copyright (C) 2011, 2015, 2018, 2021-2022, D. R. Commander.
* Copyright (C) 2016, 2018, Matthieu Darbois.
* Copyright (C) 2020, Arm Limited.
* Copyright (C) 2021, Alex Richardson.
* For conditions of distribution and use, see the accompanying README.ijg
@@ -23,11 +21,8 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#ifdef WITH_SIMD
#include "jsimd.h"
#else
#include "jchuff.h" /* Declarations shared with jc*huff.c */
#endif
#include "jconfigint.h"
#include <limits.h>
#ifdef HAVE_INTRIN_H
@@ -44,7 +39,40 @@
#ifdef C_PROGRESSIVE_SUPPORTED
#include "jpeg_nbits.h"
/*
* NOTE: If USE_CLZ_INTRINSIC is defined, then clz/bsr instructions will be
* used for bit counting rather than the lookup table. This will reduce the
* memory footprint by 64k, which is important for some mobile applications
* that create many isolated instances of libjpeg-turbo (web browsers, for
* instance.) This may improve performance on some mobile platforms as well.
* This feature is enabled by default only on Arm processors, because some x86
* chips have a slow implementation of bsr, and the use of clz/bsr cannot be
* shown to have a significant performance impact even on the x86 chips that
* have a fast implementation of it. When building for Armv6, you can
* explicitly disable the use of clz/bsr by adding -mthumb to the compiler
* flags (this defines __thumb__).
*/
/* NOTE: Both GCC and Clang define __GNUC__ */
#if (defined(__GNUC__) && (defined(__arm__) || defined(__aarch64__))) || \
defined(_M_ARM) || defined(_M_ARM64)
#if !defined(__thumb__) || defined(__thumb2__)
#define USE_CLZ_INTRINSIC
#endif
#endif
#ifdef USE_CLZ_INTRINSIC
#if defined(_MSC_VER) && !defined(__clang__)
#define JPEG_NBITS_NONZERO(x) (32 - _CountLeadingZeros(x))
#else
#define JPEG_NBITS_NONZERO(x) (32 - __builtin_clz(x))
#endif
#define JPEG_NBITS(x) (x ? JPEG_NBITS_NONZERO(x) : 0)
#else
#include "jpeg_nbits_table.h"
#define JPEG_NBITS(x) (jpeg_nbits_table[x])
#define JPEG_NBITS_NONZERO(x) JPEG_NBITS(x)
#endif
/* Expanded entropy encoder object for progressive Huffman encoding. */
@@ -55,11 +83,11 @@ typedef struct {
/* Pointer to routine to prepare data for encode_mcu_AC_first() */
void (*AC_first_prepare) (const JCOEF *block,
const int *jpeg_natural_order_start, int Sl,
int Al, UJCOEF *values, size_t *zerobits);
int Al, JCOEF *values, size_t *zerobits);
/* Pointer to routine to prepare data for encode_mcu_AC_refine() */
int (*AC_refine_prepare) (const JCOEF *block,
const int *jpeg_natural_order_start, int Sl,
int Al, UJCOEF *absvalues, size_t *bits);
int Al, JCOEF *absvalues, size_t *bits);
/* Mode flag: TRUE for optimization, FALSE for actual data output */
boolean gather_statistics;
@@ -129,14 +157,14 @@ METHODDEF(boolean) encode_mcu_DC_first(j_compress_ptr cinfo,
JBLOCKROW *MCU_data);
METHODDEF(void) encode_mcu_AC_first_prepare
(const JCOEF *block, const int *jpeg_natural_order_start, int Sl, int Al,
UJCOEF *values, size_t *zerobits);
JCOEF *values, size_t *zerobits);
METHODDEF(boolean) encode_mcu_AC_first(j_compress_ptr cinfo,
JBLOCKROW *MCU_data);
METHODDEF(boolean) encode_mcu_DC_refine(j_compress_ptr cinfo,
JBLOCKROW *MCU_data);
METHODDEF(int) encode_mcu_AC_refine_prepare
(const JCOEF *block, const int *jpeg_natural_order_start, int Sl, int Al,
UJCOEF *absvalues, size_t *bits);
JCOEF *absvalues, size_t *bits);
METHODDEF(boolean) encode_mcu_AC_refine(j_compress_ptr cinfo,
JBLOCKROW *MCU_data);
METHODDEF(void) finish_pass_phuff(j_compress_ptr cinfo);
@@ -196,22 +224,18 @@ start_pass_phuff(j_compress_ptr cinfo, boolean gather_statistics)
entropy->pub.encode_mcu = encode_mcu_DC_first;
else
entropy->pub.encode_mcu = encode_mcu_AC_first;
#ifdef WITH_SIMD
if (jsimd_can_encode_mcu_AC_first_prepare())
entropy->AC_first_prepare = jsimd_encode_mcu_AC_first_prepare;
else
#endif
entropy->AC_first_prepare = encode_mcu_AC_first_prepare;
} else {
if (is_DC_band)
entropy->pub.encode_mcu = encode_mcu_DC_refine;
else {
entropy->pub.encode_mcu = encode_mcu_AC_refine;
#ifdef WITH_SIMD
if (jsimd_can_encode_mcu_AC_refine_prepare())
entropy->AC_refine_prepare = jsimd_encode_mcu_AC_refine_prepare;
else
#endif
entropy->AC_refine_prepare = encode_mcu_AC_refine_prepare;
/* AC refinement needs a correction bit buffer */
if (entropy->bit_buffer == NULL)
@@ -466,7 +490,6 @@ encode_mcu_DC_first(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
JBLOCKROW block;
jpeg_component_info *compptr;
ISHIFT_TEMPS
int max_coef_bits = cinfo->data_precision + 2;
entropy->next_output_byte = cinfo->dest->next_output_byte;
entropy->free_in_buffer = cinfo->dest->free_in_buffer;
@@ -509,7 +532,7 @@ encode_mcu_DC_first(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
/* Check for out-of-range coefficient values.
* Since we're encoding a difference, the range limit is twice as much.
*/
if (nbits > max_coef_bits + 1)
if (nbits > MAX_COEF_BITS + 1)
ERREXIT(cinfo, JERR_BAD_DCT_COEF);
/* Count/emit the Huffman-coded symbol for the number of bits */
@@ -561,8 +584,8 @@ encode_mcu_DC_first(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
continue; \
/* For a negative coef, want temp2 = bitwise complement of abs(coef) */ \
temp2 ^= temp; \
values[k] = (UJCOEF)temp; \
values[k + DCTSIZE2] = (UJCOEF)temp2; \
values[k] = (JCOEF)temp; \
values[k + DCTSIZE2] = (JCOEF)temp2; \
zerobits |= ((size_t)1U) << k; \
} \
}
@@ -570,7 +593,7 @@ encode_mcu_DC_first(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
METHODDEF(void)
encode_mcu_AC_first_prepare(const JCOEF *block,
const int *jpeg_natural_order_start, int Sl,
int Al, UJCOEF *values, size_t *bits)
int Al, JCOEF *values, size_t *bits)
{
register int k, temp, temp2;
size_t zerobits = 0U;
@@ -620,7 +643,7 @@ label \
/* Find the number of bits needed for the magnitude of the coefficient */ \
nbits = JPEG_NBITS_NONZERO(temp); /* there must be at least one 1 bit */ \
/* Check for out-of-range coefficient values */ \
if (nbits > max_coef_bits) \
if (nbits > MAX_COEF_BITS) \
ERREXIT(cinfo, JERR_BAD_DCT_COEF); \
\
/* Count/emit Huffman symbol for run length / number of bits */ \
@@ -643,12 +666,11 @@ encode_mcu_AC_first(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
register int nbits, r;
int Sl = cinfo->Se - cinfo->Ss + 1;
int Al = cinfo->Al;
UJCOEF values_unaligned[2 * DCTSIZE2 + 15];
UJCOEF *values;
const UJCOEF *cvalue;
JCOEF values_unaligned[2 * DCTSIZE2 + 15];
JCOEF *values;
const JCOEF *cvalue;
size_t zerobits;
size_t bits[8 / SIZEOF_SIZE_T];
int max_coef_bits = cinfo->data_precision + 2;
entropy->next_output_byte = cinfo->dest->next_output_byte;
entropy->free_in_buffer = cinfo->dest->free_in_buffer;
@@ -659,7 +681,7 @@ encode_mcu_AC_first(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
emit_restart(entropy, entropy->next_restart_num);
#ifdef WITH_SIMD
cvalue = values = (UJCOEF *)PAD((JUINTPTR)values_unaligned, 16);
cvalue = values = (JCOEF *)PAD((JUINTPTR)values_unaligned, 16);
#else
/* Not using SIMD, so alignment is not needed */
cvalue = values = values_unaligned;
@@ -793,7 +815,7 @@ encode_mcu_DC_refine(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
zerobits |= ((size_t)1U) << k; \
signbits |= ((size_t)(temp2 + 1)) << k; \
} \
absvalues[k] = (UJCOEF)temp; /* save abs value for main pass */ \
absvalues[k] = (JCOEF)temp; /* save abs value for main pass */ \
if (temp == 1) \
EOB = k + koffset; /* EOB = index of last newly-nonzero coef */ \
} \
@@ -802,7 +824,7 @@ encode_mcu_DC_refine(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
METHODDEF(int)
encode_mcu_AC_refine_prepare(const JCOEF *block,
const int *jpeg_natural_order_start, int Sl,
int Al, UJCOEF *absvalues, size_t *bits)
int Al, JCOEF *absvalues, size_t *bits)
{
register int k, temp, temp2;
int EOB = 0;
@@ -909,9 +931,9 @@ encode_mcu_AC_refine(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
unsigned int BR;
int Sl = cinfo->Se - cinfo->Ss + 1;
int Al = cinfo->Al;
UJCOEF absvalues_unaligned[DCTSIZE2 + 15];
UJCOEF *absvalues;
const UJCOEF *cabsvalue, *EOBPTR;
JCOEF absvalues_unaligned[DCTSIZE2 + 15];
JCOEF *absvalues;
const JCOEF *cabsvalue, *EOBPTR;
size_t zerobits, signbits;
size_t bits[16 / SIZEOF_SIZE_T];
@@ -924,7 +946,7 @@ encode_mcu_AC_refine(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
emit_restart(entropy, entropy->next_restart_num);
#ifdef WITH_SIMD
cabsvalue = absvalues = (UJCOEF *)PAD((JUINTPTR)absvalues_unaligned, 16);
cabsvalue = absvalues = (JCOEF *)PAD((JUINTPTR)absvalues_unaligned, 16);
#else
/* Not using SIMD, so alignment is not needed */
cabsvalue = absvalues = absvalues_unaligned;

View File

@@ -1,10 +1,8 @@
/*
* jcprepct.c
*
* This file was part of the Independent JPEG Group's software:
* This file is part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
@@ -22,11 +20,8 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsamplecomp.h"
#if BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED)
/* At present, jcsample.c can request context rows only for smoothing.
* In the future, we might also need context rows for CCIR601 sampling
* or other more-complex downsampling procedures. The code to support
@@ -64,7 +59,7 @@ typedef struct {
/* Downsampling input buffer. This buffer holds color-converted data
* until we have enough to do a downsample step.
*/
_JSAMPARRAY color_buf[MAX_COMPONENTS];
JSAMPARRAY color_buf[MAX_COMPONENTS];
JDIMENSION rows_to_go; /* counts rows remaining in source image */
int next_buf_row; /* index of next row to store in color_buf */
@@ -111,14 +106,14 @@ start_pass_prep(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
*/
LOCAL(void)
expand_bottom_edge(_JSAMPARRAY image_data, JDIMENSION num_cols, int input_rows,
expand_bottom_edge(JSAMPARRAY image_data, JDIMENSION num_cols, int input_rows,
int output_rows)
{
register int row;
for (row = input_rows; row < output_rows; row++) {
_jcopy_sample_rows(image_data, input_rows - 1, image_data, row, 1,
num_cols);
jcopy_sample_rows(image_data, input_rows - 1, image_data, row, 1,
num_cols);
}
}
@@ -133,16 +128,15 @@ expand_bottom_edge(_JSAMPARRAY image_data, JDIMENSION num_cols, int input_rows,
*/
METHODDEF(void)
pre_process_data(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
pre_process_data(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail,
_JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr,
JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr,
JDIMENSION out_row_groups_avail)
{
my_prep_ptr prep = (my_prep_ptr)cinfo->prep;
int numrows, ci;
JDIMENSION inrows;
jpeg_component_info *compptr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
while (*in_row_ctr < in_rows_avail &&
*out_row_group_ctr < out_row_groups_avail) {
@@ -150,10 +144,10 @@ pre_process_data(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
inrows = in_rows_avail - *in_row_ctr;
numrows = cinfo->max_v_samp_factor - prep->next_buf_row;
numrows = (int)MIN((JDIMENSION)numrows, inrows);
(*cinfo->cconvert->_color_convert) (cinfo, input_buf + *in_row_ctr,
prep->color_buf,
(JDIMENSION)prep->next_buf_row,
numrows);
(*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr,
prep->color_buf,
(JDIMENSION)prep->next_buf_row,
numrows);
*in_row_ctr += numrows;
prep->next_buf_row += numrows;
prep->rows_to_go -= numrows;
@@ -168,9 +162,9 @@ pre_process_data(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
}
/* If we've filled the conversion buffer, empty it. */
if (prep->next_buf_row == cinfo->max_v_samp_factor) {
(*cinfo->downsample->_downsample) (cinfo,
prep->color_buf, (JDIMENSION)0,
output_buf, *out_row_group_ctr);
(*cinfo->downsample->downsample) (cinfo,
prep->color_buf, (JDIMENSION)0,
output_buf, *out_row_group_ctr);
prep->next_buf_row = 0;
(*out_row_group_ctr)++;
}
@@ -180,8 +174,7 @@ pre_process_data(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
if (prep->rows_to_go == 0 && *out_row_group_ctr < out_row_groups_avail) {
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
expand_bottom_edge(output_buf[ci],
compptr->width_in_blocks * data_unit,
expand_bottom_edge(output_buf[ci], compptr->width_in_blocks * DCTSIZE,
(int)(*out_row_group_ctr * compptr->v_samp_factor),
(int)(out_row_groups_avail * compptr->v_samp_factor));
}
@@ -199,9 +192,9 @@ pre_process_data(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
*/
METHODDEF(void)
pre_process_context(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
pre_process_context(j_compress_ptr cinfo, JSAMPARRAY input_buf,
JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail,
_JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr,
JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr,
JDIMENSION out_row_groups_avail)
{
my_prep_ptr prep = (my_prep_ptr)cinfo->prep;
@@ -215,17 +208,17 @@ pre_process_context(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
inrows = in_rows_avail - *in_row_ctr;
numrows = prep->next_buf_stop - prep->next_buf_row;
numrows = (int)MIN((JDIMENSION)numrows, inrows);
(*cinfo->cconvert->_color_convert) (cinfo, input_buf + *in_row_ctr,
prep->color_buf,
(JDIMENSION)prep->next_buf_row,
numrows);
(*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr,
prep->color_buf,
(JDIMENSION)prep->next_buf_row,
numrows);
/* Pad at top of image, if first time through */
if (prep->rows_to_go == cinfo->image_height) {
for (ci = 0; ci < cinfo->num_components; ci++) {
int row;
for (row = 1; row <= cinfo->max_v_samp_factor; row++) {
_jcopy_sample_rows(prep->color_buf[ci], 0, prep->color_buf[ci],
-row, 1, cinfo->image_width);
jcopy_sample_rows(prep->color_buf[ci], 0, prep->color_buf[ci],
-row, 1, cinfo->image_width);
}
}
}
@@ -247,9 +240,9 @@ pre_process_context(j_compress_ptr cinfo, _JSAMPARRAY input_buf,
}
/* If we've gotten enough data, downsample a row group. */
if (prep->next_buf_row == prep->next_buf_stop) {
(*cinfo->downsample->_downsample) (cinfo, prep->color_buf,
(JDIMENSION)prep->this_row_group,
output_buf, *out_row_group_ctr);
(*cinfo->downsample->downsample) (cinfo, prep->color_buf,
(JDIMENSION)prep->this_row_group,
output_buf, *out_row_group_ctr);
(*out_row_group_ctr)++;
/* Advance pointers with wraparound as necessary. */
prep->this_row_group += cinfo->max_v_samp_factor;
@@ -274,16 +267,15 @@ create_context_buffer(j_compress_ptr cinfo)
int rgroup_height = cinfo->max_v_samp_factor;
int ci, i;
jpeg_component_info *compptr;
_JSAMPARRAY true_buffer, fake_buffer;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
JSAMPARRAY true_buffer, fake_buffer;
/* Grab enough space for fake row pointers for all the components;
* we need five row groups' worth of pointers for each component.
*/
fake_buffer = (_JSAMPARRAY)
fake_buffer = (JSAMPARRAY)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(cinfo->num_components * 5 * rgroup_height) *
sizeof(_JSAMPROW));
sizeof(JSAMPROW));
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
@@ -291,14 +283,14 @@ create_context_buffer(j_compress_ptr cinfo)
* We make the buffer wide enough to allow the downsampler to edge-expand
* horizontally within the buffer, if it so chooses.
*/
true_buffer = (_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
true_buffer = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
(JDIMENSION)(((long)compptr->width_in_blocks * data_unit *
(JDIMENSION)(((long)compptr->width_in_blocks * DCTSIZE *
cinfo->max_h_samp_factor) / compptr->h_samp_factor),
(JDIMENSION)(3 * rgroup_height));
/* Copy true buffer row pointers into the middle of the fake row array */
memcpy(fake_buffer + rgroup_height, true_buffer,
3 * rgroup_height * sizeof(_JSAMPROW));
3 * rgroup_height * sizeof(JSAMPROW));
/* Fill in the above and below wraparound pointers */
for (i = 0; i < rgroup_height; i++) {
fake_buffer[i] = true_buffer[2 * rgroup_height + i];
@@ -317,15 +309,11 @@ create_context_buffer(j_compress_ptr cinfo)
*/
GLOBAL(void)
_jinit_c_prep_controller(j_compress_ptr cinfo, boolean need_full_buffer)
jinit_c_prep_controller(j_compress_ptr cinfo, boolean need_full_buffer)
{
my_prep_ptr prep;
int ci;
jpeg_component_info *compptr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (need_full_buffer) /* safety check */
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
@@ -343,23 +331,21 @@ _jinit_c_prep_controller(j_compress_ptr cinfo, boolean need_full_buffer)
if (cinfo->downsample->need_context_rows) {
/* Set up to provide context rows */
#ifdef CONTEXT_ROWS_SUPPORTED
prep->pub._pre_process_data = pre_process_context;
prep->pub.pre_process_data = pre_process_context;
create_context_buffer(cinfo);
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else {
/* No context, just make it tall enough for one row group */
prep->pub._pre_process_data = pre_process_data;
prep->pub.pre_process_data = pre_process_data;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
prep->color_buf[ci] = (_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
prep->color_buf[ci] = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
(JDIMENSION)(((long)compptr->width_in_blocks * data_unit *
(JDIMENSION)(((long)compptr->width_in_blocks * DCTSIZE *
cinfo->max_h_samp_factor) / compptr->h_samp_factor),
(JDIMENSION)cinfo->max_v_samp_factor);
}
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED) */

View File

@@ -3,12 +3,10 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1996, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2014, MIPS Technologies, Inc., California.
* Copyright (C) 2015, 2019, 2022, D. R. Commander.
* Copyright (C) 2015, 2019, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -56,16 +54,13 @@
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
#include "jsamplecomp.h"
#if BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED)
/* Pointer to routine to downsample a single component */
typedef void (*downsample1_ptr) (j_compress_ptr cinfo,
jpeg_component_info *compptr,
_JSAMPARRAY input_data,
_JSAMPARRAY output_data);
JSAMPARRAY input_data,
JSAMPARRAY output_data);
/* Private subobject */
@@ -96,11 +91,11 @@ start_pass_downsample(j_compress_ptr cinfo)
*/
LOCAL(void)
expand_right_edge(_JSAMPARRAY image_data, int num_rows, JDIMENSION input_cols,
expand_right_edge(JSAMPARRAY image_data, int num_rows, JDIMENSION input_cols,
JDIMENSION output_cols)
{
register _JSAMPROW ptr;
register _JSAMPLE pixval;
register JSAMPROW ptr;
register JSAMPLE pixval;
register int count;
int row;
int numcols = (int)(output_cols - input_cols);
@@ -123,14 +118,14 @@ expand_right_edge(_JSAMPARRAY image_data, int num_rows, JDIMENSION input_cols,
*/
METHODDEF(void)
sep_downsample(j_compress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_index, _JSAMPIMAGE output_buf,
sep_downsample(j_compress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_index, JSAMPIMAGE output_buf,
JDIMENSION out_row_group_index)
{
my_downsample_ptr downsample = (my_downsample_ptr)cinfo->downsample;
int ci;
jpeg_component_info *compptr;
_JSAMPARRAY in_ptr, out_ptr;
JSAMPARRAY in_ptr, out_ptr;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
@@ -150,13 +145,12 @@ sep_downsample(j_compress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
int_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY output_data)
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
int inrow, outrow, h_expand, v_expand, numpix, numpix2, h, v;
JDIMENSION outcol, outcol_h; /* outcol_h == outcol*h_expand */
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
JDIMENSION output_cols = compptr->width_in_blocks * data_unit;
_JSAMPROW inptr, outptr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
JSAMPROW inptr, outptr;
JLONG outvalue;
h_expand = cinfo->max_h_samp_factor / compptr->h_samp_factor;
@@ -183,7 +177,7 @@ int_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
outvalue += (JLONG)(*inptr++);
}
}
*outptr++ = (_JSAMPLE)((outvalue + numpix2) / numpix);
*outptr++ = (JSAMPLE)((outvalue + numpix2) / numpix);
}
inrow += v_expand;
}
@@ -198,16 +192,14 @@ int_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
fullsize_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY output_data)
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
/* Copy the data */
_jcopy_sample_rows(input_data, 0, output_data, 0, cinfo->max_v_samp_factor,
cinfo->image_width);
jcopy_sample_rows(input_data, 0, output_data, 0, cinfo->max_v_samp_factor,
cinfo->image_width);
/* Edge-expand */
expand_right_edge(output_data, cinfo->max_v_samp_factor, cinfo->image_width,
compptr->width_in_blocks * data_unit);
compptr->width_in_blocks * DCTSIZE);
}
@@ -225,13 +217,12 @@ fullsize_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v1_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY output_data)
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
int outrow;
JDIMENSION outcol;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
JDIMENSION output_cols = compptr->width_in_blocks * data_unit;
register _JSAMPROW inptr, outptr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
register JSAMPROW inptr, outptr;
register int bias;
/* Expand input data enough to let all the output samples be generated
@@ -246,7 +237,7 @@ h2v1_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
inptr = input_data[outrow];
bias = 0; /* bias = 0,1,0,1,... for successive samples */
for (outcol = 0; outcol < output_cols; outcol++) {
*outptr++ = (_JSAMPLE)((inptr[0] + inptr[1] + bias) >> 1);
*outptr++ = (JSAMPLE)((inptr[0] + inptr[1] + bias) >> 1);
bias ^= 1; /* 0=>1, 1=>0 */
inptr += 2;
}
@@ -262,13 +253,12 @@ h2v1_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v2_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY output_data)
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
int inrow, outrow;
JDIMENSION outcol;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
JDIMENSION output_cols = compptr->width_in_blocks * data_unit;
register _JSAMPROW inptr0, inptr1, outptr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
register JSAMPROW inptr0, inptr1, outptr;
register int bias;
/* Expand input data enough to let all the output samples be generated
@@ -285,8 +275,8 @@ h2v2_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
inptr1 = input_data[inrow + 1];
bias = 1; /* bias = 1,2,1,2,... for successive samples */
for (outcol = 0; outcol < output_cols; outcol++) {
*outptr++ = (_JSAMPLE)
((inptr0[0] + inptr0[1] + inptr1[0] + inptr1[1] + bias) >> 2);
*outptr++ =
(JSAMPLE)((inptr0[0] + inptr0[1] + inptr1[0] + inptr1[1] + bias) >> 2);
bias ^= 3; /* 1=>2, 2=>1 */
inptr0 += 2; inptr1 += 2;
}
@@ -305,13 +295,12 @@ h2v2_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY output_data)
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
int inrow, outrow;
JDIMENSION colctr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
JDIMENSION output_cols = compptr->width_in_blocks * data_unit;
register _JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
register JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr;
JLONG membersum, neighsum, memberscale, neighscale;
/* Expand input data enough to let all the output samples be generated
@@ -352,7 +341,7 @@ h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
neighsum += neighsum;
neighsum += above_ptr[0] + above_ptr[2] + below_ptr[0] + below_ptr[2];
membersum = membersum * memberscale + neighsum * neighscale;
*outptr++ = (_JSAMPLE)((membersum + 32768) >> 16);
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2;
for (colctr = output_cols - 2; colctr > 0; colctr--) {
@@ -368,7 +357,7 @@ h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
/* form final output scaled up by 2^16 */
membersum = membersum * memberscale + neighsum * neighscale;
/* round, descale and output it */
*outptr++ = (_JSAMPLE)((membersum + 32768) >> 16);
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2;
}
@@ -379,7 +368,7 @@ h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
neighsum += neighsum;
neighsum += above_ptr[-1] + above_ptr[1] + below_ptr[-1] + below_ptr[1];
membersum = membersum * memberscale + neighsum * neighscale;
*outptr = (_JSAMPLE)((membersum + 32768) >> 16);
*outptr = (JSAMPLE)((membersum + 32768) >> 16);
inrow += 2;
}
@@ -394,13 +383,12 @@ h2v2_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY output_data)
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
int outrow;
JDIMENSION colctr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
JDIMENSION output_cols = compptr->width_in_blocks * data_unit;
register _JSAMPROW inptr, above_ptr, below_ptr, outptr;
JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
register JSAMPROW inptr, above_ptr, below_ptr, outptr;
JLONG membersum, neighsum, memberscale, neighscale;
int colsum, lastcolsum, nextcolsum;
@@ -432,7 +420,7 @@ fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
nextcolsum = above_ptr[0] + below_ptr[0] + inptr[0];
neighsum = colsum + (colsum - membersum) + nextcolsum;
membersum = membersum * memberscale + neighsum * neighscale;
*outptr++ = (_JSAMPLE)((membersum + 32768) >> 16);
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
lastcolsum = colsum; colsum = nextcolsum;
for (colctr = output_cols - 2; colctr > 0; colctr--) {
@@ -441,7 +429,7 @@ fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
nextcolsum = above_ptr[0] + below_ptr[0] + inptr[0];
neighsum = lastcolsum + (colsum - membersum) + nextcolsum;
membersum = membersum * memberscale + neighsum * neighscale;
*outptr++ = (_JSAMPLE)((membersum + 32768) >> 16);
*outptr++ = (JSAMPLE)((membersum + 32768) >> 16);
lastcolsum = colsum; colsum = nextcolsum;
}
@@ -449,7 +437,7 @@ fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
membersum = *inptr;
neighsum = lastcolsum + (colsum - membersum) + colsum;
membersum = membersum * memberscale + neighsum * neighscale;
*outptr = (_JSAMPLE)((membersum + 32768) >> 16);
*outptr = (JSAMPLE)((membersum + 32768) >> 16);
}
}
@@ -463,22 +451,19 @@ fullsize_smooth_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr,
*/
GLOBAL(void)
_jinit_downsampler(j_compress_ptr cinfo)
jinit_downsampler(j_compress_ptr cinfo)
{
my_downsample_ptr downsample;
int ci;
jpeg_component_info *compptr;
boolean smoothok = TRUE;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
downsample = (my_downsample_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_downsampler));
cinfo->downsample = (struct jpeg_downsampler *)downsample;
downsample->pub.start_pass = start_pass_downsample;
downsample->pub._downsample = sep_downsample;
downsample->pub.downsample = sep_downsample;
downsample->pub.need_context_rows = FALSE;
if (cinfo->CCIR601_sampling)
@@ -499,17 +484,15 @@ _jinit_downsampler(j_compress_ptr cinfo)
} else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
compptr->v_samp_factor == cinfo->max_v_samp_factor) {
smoothok = FALSE;
#ifdef WITH_SIMD
if (jsimd_can_h2v1_downsample())
downsample->methods[ci] = jsimd_h2v1_downsample;
else
#endif
downsample->methods[ci] = h2v1_downsample;
} else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
compptr->v_samp_factor * 2 == cinfo->max_v_samp_factor) {
#ifdef INPUT_SMOOTHING_SUPPORTED
if (cinfo->smoothing_factor) {
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_can_h2v2_smooth_downsample())
downsample->methods[ci] = jsimd_h2v2_smooth_downsample;
else
@@ -519,11 +502,9 @@ _jinit_downsampler(j_compress_ptr cinfo)
} else
#endif
{
#ifdef WITH_SIMD
if (jsimd_can_h2v2_downsample())
downsample->methods[ci] = jsimd_h2v2_downsample;
else
#endif
downsample->methods[ci] = h2v2_downsample;
}
} else if ((cinfo->max_h_samp_factor % compptr->h_samp_factor) == 0 &&
@@ -539,5 +520,3 @@ _jinit_downsampler(j_compress_ptr cinfo)
TRACEMS(cinfo, 0, JTRC_SMOOTH_NOTIMPL);
#endif
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(C_LOSSLESS_SUPPORTED) */

View File

@@ -1,126 +0,0 @@
/*
* Copyright (C)2011 D. R. Commander. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the libjpeg-turbo Project nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* This program demonstrates how to check for the colorspace extension
capabilities of libjpeg-turbo at both compile time and run time. */
#include <stdio.h>
#include <jpeglib.h>
#include <jerror.h>
#include <setjmp.h>
#ifndef JCS_EXTENSIONS
#define JCS_EXT_RGB 6
#endif
#if !defined(JCS_EXTENSIONS) || !defined(JCS_ALPHA_EXTENSIONS)
#define JCS_EXT_RGBA 12
#endif
static char lasterror[JMSG_LENGTH_MAX] = "No error";
typedef struct _error_mgr {
struct jpeg_error_mgr pub;
jmp_buf jb;
} error_mgr;
static void my_error_exit(j_common_ptr cinfo)
{
error_mgr *myerr = (error_mgr *)cinfo->err;
(*cinfo->err->output_message) (cinfo);
longjmp(myerr->jb, 1);
}
static void my_output_message(j_common_ptr cinfo)
{
(*cinfo->err->format_message) (cinfo, lasterror);
}
int main(void)
{
int jcs_valid = -1, jcs_alpha_valid = -1;
struct jpeg_compress_struct cinfo;
error_mgr jerr;
printf("libjpeg-turbo colorspace extensions:\n");
#if JCS_EXTENSIONS
printf(" Present at compile time\n");
#else
printf(" Not present at compile time\n");
#endif
cinfo.err = jpeg_std_error(&jerr.pub);
jerr.pub.error_exit = my_error_exit;
jerr.pub.output_message = my_output_message;
if (setjmp(jerr.jb)) {
/* this will execute if libjpeg has an error */
jcs_valid = 0;
goto done;
}
jpeg_create_compress(&cinfo);
cinfo.input_components = 3;
jpeg_set_defaults(&cinfo);
cinfo.in_color_space = JCS_EXT_RGB;
jpeg_default_colorspace(&cinfo);
jcs_valid = 1;
done:
if (jcs_valid)
printf(" Working properly\n");
else
printf(" Not working properly. Error returned was:\n %s\n",
lasterror);
printf("libjpeg-turbo alpha colorspace extensions:\n");
#if JCS_ALPHA_EXTENSIONS
printf(" Present at compile time\n");
#else
printf(" Not present at compile time\n");
#endif
if (setjmp(jerr.jb)) {
/* this will execute if libjpeg has an error */
jcs_alpha_valid = 0;
goto done2;
}
cinfo.in_color_space = JCS_EXT_RGBA;
jpeg_default_colorspace(&cinfo);
jcs_alpha_valid = 1;
done2:
if (jcs_alpha_valid)
printf(" Working properly\n");
else
printf(" Not working properly. Error returned was:\n %s\n",
lasterror);
jpeg_destroy_compress(&cinfo);
return 0;
}

View File

@@ -17,7 +17,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
/* Forward declarations */
@@ -42,9 +42,6 @@ LOCAL(void) transencode_coef_controller(j_compress_ptr cinfo,
GLOBAL(void)
jpeg_write_coefficients(j_compress_ptr cinfo, jvirt_barray_ptr *coef_arrays)
{
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_NOTIMPL);
if (cinfo->global_state != CSTATE_START)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
/* Mark all tables to be written */
@@ -75,9 +72,6 @@ jpeg_copy_critical_parameters(j_decompress_ptr srcinfo, j_compress_ptr dstinfo)
JQUANT_TBL *c_quant, *slot_quant;
int tblno, ci, coefi;
if (srcinfo->master->lossless)
ERREXIT(dstinfo, JERR_NOTIMPL);
/* Safety check to ensure start_compress not called yet. */
if (dstinfo->global_state != CSTATE_START)
ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state);
@@ -370,13 +364,6 @@ compress_output(j_compress_ptr cinfo, JSAMPIMAGE input_buf)
}
METHODDEF(boolean)
compress_output_12(j_compress_ptr cinfo, J12SAMPIMAGE input_buf)
{
return compress_output(cinfo, (JSAMPIMAGE)input_buf);
}
/*
* Initialize coefficient buffer controller.
*
@@ -399,7 +386,6 @@ transencode_coef_controller(j_compress_ptr cinfo,
cinfo->coef = (struct jpeg_c_coef_controller *)coef;
coef->pub.start_pass = start_pass_coef;
coef->pub.compress_data = compress_output;
coef->pub.compress_data_12 = compress_output_12;
/* Save pointer to virtual arrays */
coef->whole_image = coef_arrays;

View File

@@ -3,10 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1998, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2016, 2022, 2024, D. R. Commander.
* Copyright (C) 2016, 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -25,6 +23,7 @@
#include "jinclude.h"
#include "jpeglib.h"
#include "jdmaster.h"
#include "jconfigint.h"
/*
@@ -84,8 +83,6 @@ jpeg_CreateDecompress(j_decompress_ptr cinfo, int version, size_t structsize)
/* And initialize the overall input controller. */
jinit_input_controller(cinfo);
cinfo->data_precision = BITS_IN_JSAMPLE;
/* OK, I'm ready */
cinfo->global_state = DSTATE_START;
@@ -160,19 +157,13 @@ default_decompress_parms(j_decompress_ptr cinfo)
int cid1 = cinfo->comp_info[1].component_id;
int cid2 = cinfo->comp_info[2].component_id;
if (cid0 == 1 && cid1 == 2 && cid2 == 3) {
if (cinfo->master->lossless)
cinfo->jpeg_color_space = JCS_RGB; /* assume RGB w/out marker */
else
cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */
} else if (cid0 == 82 && cid1 == 71 && cid2 == 66)
if (cid0 == 1 && cid1 == 2 && cid2 == 3)
cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */
else if (cid0 == 82 && cid1 == 71 && cid2 == 66)
cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */
else {
TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);
if (cinfo->master->lossless)
cinfo->jpeg_color_space = JCS_RGB; /* assume it's RGB */
else
cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
}
}
/* Always guess RGB is proper output colorspace. */

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2015-2020, 2022-2023, D. R. Commander.
* Copyright (C) 2010, 2015-2020, 2022, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@@ -19,20 +19,13 @@
*/
#include "jinclude.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
#include "jdmainct.h"
#include "jdcoefct.h"
#else
#define JPEG_INTERNALS
#include "jpeglib.h"
#endif
#include "jdmaster.h"
#include "jdmerge.h"
#include "jdsample.h"
#include "jmemsys.h"
#if BITS_IN_JSAMPLE == 8
/* Forward declarations */
LOCAL(boolean) output_pass_setup(j_decompress_ptr cinfo);
@@ -128,20 +121,8 @@ output_pass_setup(j_decompress_ptr cinfo)
}
/* Process some data */
last_scanline = cinfo->output_scanline;
#ifdef D_LOSSLESS_SUPPORTED
if (cinfo->data_precision == 16)
(*cinfo->main->process_data_16) (cinfo, (J16SAMPARRAY)NULL,
&cinfo->output_scanline,
(JDIMENSION)0);
else
#endif
if (cinfo->data_precision == 12)
(*cinfo->main->process_data_12) (cinfo, (J12SAMPARRAY)NULL,
&cinfo->output_scanline,
(JDIMENSION)0);
else
(*cinfo->main->process_data) (cinfo, (JSAMPARRAY)NULL,
&cinfo->output_scanline, (JDIMENSION)0);
(*cinfo->main->process_data) (cinfo, (JSAMPARRAY)NULL,
&cinfo->output_scanline, (JDIMENSION)0);
if (cinfo->output_scanline == last_scanline)
return FALSE; /* No progress made, must suspend */
}
@@ -154,46 +135,33 @@ output_pass_setup(j_decompress_ptr cinfo)
#endif /* QUANT_2PASS_SUPPORTED */
}
/* Ready for application to drive output pass through
* _jpeg_read_scanlines or _jpeg_read_raw_data.
* jpeg_read_scanlines or jpeg_read_raw_data.
*/
cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING;
return TRUE;
}
#endif /* BITS_IN_JSAMPLE == 8 */
#if BITS_IN_JSAMPLE != 16
/*
* Enable partial scanline decompression
*
* Must be called after jpeg_start_decompress() and before any calls to
* _jpeg_read_scanlines() or _jpeg_skip_scanlines().
* jpeg_read_scanlines() or jpeg_skip_scanlines().
*
* Refer to libjpeg.txt for more information.
*/
GLOBAL(void)
_jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
JDIMENSION *width)
jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
JDIMENSION *width)
{
int ci, align, orig_downsampled_width;
JDIMENSION input_xoffset;
boolean reinit_upsampler = FALSE;
jpeg_component_info *compptr;
#ifdef UPSAMPLE_MERGING_SUPPORTED
my_master_ptr master = (my_master_ptr)cinfo->master;
#endif
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_NOTIMPL);
if ((cinfo->global_state != DSTATE_SCANNING &&
cinfo->global_state != DSTATE_BUFIMAGE) || cinfo->output_scanline != 0)
if (cinfo->global_state != DSTATE_SCANNING || cinfo->output_scanline != 0)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
if (!xoffset || !width)
@@ -241,13 +209,11 @@ _jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
*/
*width = *width + input_xoffset - *xoffset;
cinfo->output_width = *width;
#ifdef UPSAMPLE_MERGING_SUPPORTED
if (master->using_merged_upsample && cinfo->max_v_samp_factor == 2) {
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
upsample->out_row_width =
cinfo->output_width * cinfo->out_color_components;
}
#endif
/* Set the first and last iMCU columns that we must decompress. These values
* will be used in single-scan decompressions.
@@ -265,11 +231,9 @@ _jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
/* Set downsampled_width to the new output width. */
orig_downsampled_width = compptr->downsampled_width;
compptr->downsampled_width =
(JDIMENSION)jdiv_round_up((long)cinfo->output_width *
(long)(compptr->h_samp_factor *
compptr->_DCT_scaled_size),
(long)(cinfo->max_h_samp_factor *
cinfo->_min_DCT_scaled_size));
(JDIMENSION)jdiv_round_up((long)(cinfo->output_width *
compptr->h_samp_factor),
(long)cinfo->max_h_samp_factor);
if (compptr->downsampled_width < 2 && orig_downsampled_width >= 2)
reinit_upsampler = TRUE;
@@ -285,13 +249,11 @@ _jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
if (reinit_upsampler) {
cinfo->master->jinit_upsampler_no_alloc = TRUE;
_jinit_upsampler(cinfo);
jinit_upsampler(cinfo);
cinfo->master->jinit_upsampler_no_alloc = FALSE;
}
}
#endif /* BITS_IN_JSAMPLE != 16 */
/*
* Read some scanlines of data from the JPEG decompressor.
@@ -301,21 +263,17 @@ _jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
* including bottom of image, data source suspension, and operating
* modes that emit multiple scanlines at a time.
*
* Note: we warn about excess calls to _jpeg_read_scanlines() since
* Note: we warn about excess calls to jpeg_read_scanlines() since
* this likely signals an application programmer error. However,
* an oversize buffer (max_lines > scanlines remaining) is not an error.
*/
GLOBAL(JDIMENSION)
_jpeg_read_scanlines(j_decompress_ptr cinfo, _JSAMPARRAY scanlines,
JDIMENSION max_lines)
jpeg_read_scanlines(j_decompress_ptr cinfo, JSAMPARRAY scanlines,
JDIMENSION max_lines)
{
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
JDIMENSION row_ctr;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (cinfo->global_state != DSTATE_SCANNING)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
if (cinfo->output_scanline >= cinfo->output_height) {
@@ -332,36 +290,30 @@ _jpeg_read_scanlines(j_decompress_ptr cinfo, _JSAMPARRAY scanlines,
/* Process some data */
row_ctr = 0;
(*cinfo->main->_process_data) (cinfo, scanlines, &row_ctr, max_lines);
(*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines);
cinfo->output_scanline += row_ctr;
return row_ctr;
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
return 0;
#endif
}
#if BITS_IN_JSAMPLE != 16
/* Dummy color convert function used by _jpeg_skip_scanlines() */
/* Dummy color convert function used by jpeg_skip_scanlines() */
LOCAL(void)
noop_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
noop_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
}
/* Dummy quantize function used by _jpeg_skip_scanlines() */
/* Dummy quantize function used by jpeg_skip_scanlines() */
LOCAL(void)
noop_quantize(j_decompress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPARRAY output_buf, int num_rows)
noop_quantize(j_decompress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPARRAY output_buf, int num_rows)
{
}
/*
* In some cases, it is best to call _jpeg_read_scanlines() and discard the
* In some cases, it is best to call jpeg_read_scanlines() and discard the
* output, rather than skipping the scanlines, because this allows us to
* maintain the internal state of the context-based upsampler. In these cases,
* we set up and tear down a dummy color converter in order to avoid valgrind
@@ -372,53 +324,49 @@ LOCAL(void)
read_and_discard_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
{
JDIMENSION n;
#ifdef UPSAMPLE_MERGING_SUPPORTED
my_master_ptr master = (my_master_ptr)cinfo->master;
#endif
_JSAMPLE dummy_sample[1] = { 0 };
_JSAMPROW dummy_row = dummy_sample;
_JSAMPARRAY scanlines = NULL;
void (*color_convert) (j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
JSAMPLE dummy_sample[1] = { 0 };
JSAMPROW dummy_row = dummy_sample;
JSAMPARRAY scanlines = NULL;
void (*color_convert) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows) = NULL;
void (*color_quantize) (j_decompress_ptr cinfo, _JSAMPARRAY input_buf,
_JSAMPARRAY output_buf, int num_rows) = NULL;
void (*color_quantize) (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
JSAMPARRAY output_buf, int num_rows) = NULL;
if (cinfo->cconvert && cinfo->cconvert->_color_convert) {
color_convert = cinfo->cconvert->_color_convert;
cinfo->cconvert->_color_convert = noop_convert;
if (cinfo->cconvert && cinfo->cconvert->color_convert) {
color_convert = cinfo->cconvert->color_convert;
cinfo->cconvert->color_convert = noop_convert;
/* This just prevents UBSan from complaining about adding 0 to a NULL
* pointer. The pointer isn't actually used.
*/
scanlines = &dummy_row;
}
if (cinfo->cquantize && cinfo->cquantize->_color_quantize) {
color_quantize = cinfo->cquantize->_color_quantize;
cinfo->cquantize->_color_quantize = noop_quantize;
if (cinfo->cquantize && cinfo->cquantize->color_quantize) {
color_quantize = cinfo->cquantize->color_quantize;
cinfo->cquantize->color_quantize = noop_quantize;
}
#ifdef UPSAMPLE_MERGING_SUPPORTED
if (master->using_merged_upsample && cinfo->max_v_samp_factor == 2) {
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
scanlines = &upsample->spare_row;
}
#endif
for (n = 0; n < num_lines; n++)
_jpeg_read_scanlines(cinfo, scanlines, 1);
jpeg_read_scanlines(cinfo, scanlines, 1);
if (color_convert)
cinfo->cconvert->_color_convert = color_convert;
cinfo->cconvert->color_convert = color_convert;
if (color_quantize)
cinfo->cquantize->_color_quantize = color_quantize;
cinfo->cquantize->color_quantize = color_quantize;
}
/*
* Called by _jpeg_skip_scanlines(). This partially skips a decompress block
* by incrementing the rowgroup counter.
* Called by jpeg_skip_scanlines(). This partially skips a decompress block by
* incrementing the rowgroup counter.
*/
LOCAL(void)
@@ -457,7 +405,7 @@ increment_simple_rowgroup_ctr(j_decompress_ptr cinfo, JDIMENSION rows)
*/
GLOBAL(JDIMENSION)
_jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
{
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
@@ -468,12 +416,6 @@ _jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
JDIMENSION lines_per_iMCU_row, lines_left_in_iMCU_row, lines_after_iMCU_row;
JDIMENSION lines_to_skip, lines_to_read;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_NOTIMPL);
/* Two-pass color quantization is not supported. */
if (cinfo->quantize_colors && cinfo->two_pass_quantize)
ERREXIT(cinfo, JERR_NOTIMPL);
@@ -575,7 +517,7 @@ _jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
* all of the entropy decoding occurs in jpeg_start_decompress(), assuming
* that the input data source is non-suspending. This makes skipping easy.
*/
if (cinfo->inputctl->has_multiple_scans || cinfo->buffered_image) {
if (cinfo->inputctl->has_multiple_scans) {
if (cinfo->upsample->need_context_rows) {
cinfo->output_scanline += lines_to_skip;
cinfo->output_iMCU_row += lines_to_skip / lines_per_iMCU_row;
@@ -646,17 +588,11 @@ _jpeg_skip_scanlines(j_decompress_ptr cinfo, JDIMENSION num_lines)
*/
GLOBAL(JDIMENSION)
_jpeg_read_raw_data(j_decompress_ptr cinfo, _JSAMPIMAGE data,
JDIMENSION max_lines)
jpeg_read_raw_data(j_decompress_ptr cinfo, JSAMPIMAGE data,
JDIMENSION max_lines)
{
JDIMENSION lines_per_iMCU_row;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_NOTIMPL);
if (cinfo->global_state != DSTATE_RAW_OK)
ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
if (cinfo->output_scanline >= cinfo->output_height) {
@@ -677,7 +613,7 @@ _jpeg_read_raw_data(j_decompress_ptr cinfo, _JSAMPIMAGE data,
ERREXIT(cinfo, JERR_BUFFER_SIZE);
/* Decompress directly into user's buffer. */
if (!(*cinfo->coef->_decompress_data) (cinfo, data))
if (!(*cinfo->coef->decompress_data) (cinfo, data))
return 0; /* suspension forced, can do nothing more */
/* OK, we processed one iMCU row. */
@@ -685,10 +621,6 @@ _jpeg_read_raw_data(j_decompress_ptr cinfo, _JSAMPIMAGE data,
return lines_per_iMCU_row;
}
#endif /* BITS_IN_JSAMPLE != 16 */
#if BITS_IN_JSAMPLE == 8
/* Additional entry points for buffered-image mode. */
@@ -746,5 +678,3 @@ jpeg_finish_output(j_decompress_ptr cinfo)
}
#endif /* D_MULTISCAN_FILES_SUPPORTED */
#endif /* BITS_IN_JSAMPLE == 8 */

View File

@@ -1,198 +0,0 @@
/*
* jdatadst-tj.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* Modified 2009-2012 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2011, 2014, 2016, 2019, 2022-2023, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains compression data destination routines for the case of
* emitting JPEG data to memory or to a file (or any stdio stream).
* While these routines are sufficient for most applications,
* some will want to use a different destination manager.
* IMPORTANT: we assume that fwrite() will correctly transcribe an array of
* JOCTETs into 8-bit-wide elements on external storage. If char is wider
* than 8 bits on your machine, you may need to do some tweaking.
*/
/* this is not a core library module, so it doesn't define JPEG_INTERNALS */
#include "jinclude.h"
#include "jpeglib.h"
#include "jerror.h"
void jpeg_mem_dest_tj(j_compress_ptr cinfo, unsigned char **outbuffer,
size_t *outsize, boolean alloc);
#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */
/* Expanded data destination object for memory output */
typedef struct {
struct jpeg_destination_mgr pub; /* public fields */
unsigned char **outbuffer; /* target buffer */
size_t *outsize;
unsigned char *newbuffer; /* newly allocated buffer */
JOCTET *buffer; /* start of buffer */
size_t bufsize;
boolean alloc;
} my_mem_destination_mgr;
typedef my_mem_destination_mgr *my_mem_dest_ptr;
/*
* Initialize destination --- called by jpeg_start_compress
* before any data is actually written.
*/
METHODDEF(void)
init_mem_destination(j_compress_ptr cinfo)
{
/* no work necessary here */
}
/*
* Empty the output buffer --- called whenever buffer fills up.
*
* In typical applications, this should write the entire output buffer
* (ignoring the current state of next_output_byte & free_in_buffer),
* reset the pointer & count to the start of the buffer, and return TRUE
* indicating that the buffer has been dumped.
*
* In applications that need to be able to suspend compression due to output
* overrun, a FALSE return indicates that the buffer cannot be emptied now.
* In this situation, the compressor will return to its caller (possibly with
* an indication that it has not accepted all the supplied scanlines). The
* application should resume compression after it has made more room in the
* output buffer. Note that there are substantial restrictions on the use of
* suspension --- see the documentation.
*
* When suspending, the compressor will back up to a convenient restart point
* (typically the start of the current MCU). next_output_byte & free_in_buffer
* indicate where the restart point will be if the current call returns FALSE.
* Data beyond this point will be regenerated after resumption, so do not
* write it out when emptying the buffer externally.
*/
METHODDEF(boolean)
empty_mem_output_buffer(j_compress_ptr cinfo)
{
size_t nextsize;
JOCTET *nextbuffer;
my_mem_dest_ptr dest = (my_mem_dest_ptr)cinfo->dest;
if (!dest->alloc) ERREXIT(cinfo, JERR_BUFFER_SIZE);
/* Try to allocate new buffer with double size */
nextsize = dest->bufsize * 2;
nextbuffer = (JOCTET *)malloc(nextsize);
if (nextbuffer == NULL)
ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10);
memcpy(nextbuffer, dest->buffer, dest->bufsize);
free(dest->newbuffer);
dest->newbuffer = nextbuffer;
dest->pub.next_output_byte = nextbuffer + dest->bufsize;
dest->pub.free_in_buffer = dest->bufsize;
dest->buffer = nextbuffer;
dest->bufsize = nextsize;
return TRUE;
}
/*
* Terminate destination --- called by jpeg_finish_compress
* after all data has been written. Usually needs to flush buffer.
*
* NB: *not* called by jpeg_abort or jpeg_destroy; surrounding
* application must deal with any cleanup that should happen even
* for error exit.
*/
METHODDEF(void)
term_mem_destination(j_compress_ptr cinfo)
{
my_mem_dest_ptr dest = (my_mem_dest_ptr)cinfo->dest;
if (dest->alloc) *dest->outbuffer = dest->buffer;
*dest->outsize = dest->bufsize - dest->pub.free_in_buffer;
}
/*
* Prepare for output to a memory buffer.
* The caller may supply an own initial buffer with appropriate size.
* Otherwise, or when the actual data output exceeds the given size,
* the library adapts the buffer size as necessary.
* The standard library functions malloc/free are used for allocating
* larger memory, so the buffer is available to the application after
* finishing compression, and then the application is responsible for
* freeing the requested memory.
*/
GLOBAL(void)
jpeg_mem_dest_tj(j_compress_ptr cinfo, unsigned char **outbuffer,
size_t *outsize, boolean alloc)
{
boolean reused = FALSE;
my_mem_dest_ptr dest;
if (outbuffer == NULL || outsize == NULL) /* sanity check */
ERREXIT(cinfo, JERR_BUFFER_SIZE);
/* The destination object is made permanent so that multiple JPEG images
* can be written to the same buffer without re-executing jpeg_mem_dest.
*/
if (cinfo->dest == NULL) { /* first time for this JPEG object? */
cinfo->dest = (struct jpeg_destination_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT,
sizeof(my_mem_destination_mgr));
dest = (my_mem_dest_ptr)cinfo->dest;
dest->newbuffer = NULL;
dest->buffer = NULL;
} else if (cinfo->dest->init_destination != init_mem_destination) {
/* It is unsafe to reuse the existing destination manager unless it was
* created by this function.
*/
ERREXIT(cinfo, JERR_BUFFER_SIZE);
}
dest = (my_mem_dest_ptr)cinfo->dest;
dest->pub.init_destination = init_mem_destination;
dest->pub.empty_output_buffer = empty_mem_output_buffer;
dest->pub.term_destination = term_mem_destination;
if (dest->buffer == *outbuffer && *outbuffer != NULL && alloc)
reused = TRUE;
dest->outbuffer = outbuffer;
dest->outsize = outsize;
dest->alloc = alloc;
if (*outbuffer == NULL || *outsize == 0) {
if (alloc) {
/* Allocate initial buffer */
dest->newbuffer = *outbuffer = (unsigned char *)malloc(OUTPUT_BUF_SIZE);
if (dest->newbuffer == NULL)
ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10);
*outsize = OUTPUT_BUF_SIZE;
} else
ERREXIT(cinfo, JERR_BUFFER_SIZE);
}
dest->pub.next_output_byte = dest->buffer = *outbuffer;
if (!reused)
dest->bufsize = *outsize;
dest->pub.free_in_buffer = dest->bufsize;
}

View File

@@ -38,6 +38,7 @@ typedef my_destination_mgr *my_dest_ptr;
#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
/* Expanded data destination object for memory output */
typedef struct {
@@ -51,6 +52,7 @@ typedef struct {
} my_mem_destination_mgr;
typedef my_mem_destination_mgr *my_mem_dest_ptr;
#endif
/*
@@ -72,11 +74,13 @@ init_destination(j_compress_ptr cinfo)
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
METHODDEF(void)
init_mem_destination(j_compress_ptr cinfo)
{
/* no work necessary here */
}
#endif
/*
@@ -117,6 +121,7 @@ empty_output_buffer(j_compress_ptr cinfo)
return TRUE;
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
METHODDEF(boolean)
empty_mem_output_buffer(j_compress_ptr cinfo)
{
@@ -145,6 +150,7 @@ empty_mem_output_buffer(j_compress_ptr cinfo)
return TRUE;
}
#endif
/*
@@ -173,6 +179,7 @@ term_destination(j_compress_ptr cinfo)
ERREXIT(cinfo, JERR_FILE_WRITE);
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
METHODDEF(void)
term_mem_destination(j_compress_ptr cinfo)
{
@@ -181,6 +188,7 @@ term_mem_destination(j_compress_ptr cinfo)
*dest->outbuffer = dest->buffer;
*dest->outsize = (unsigned long)(dest->bufsize - dest->pub.free_in_buffer);
}
#endif
/*
@@ -219,6 +227,7 @@ jpeg_stdio_dest(j_compress_ptr cinfo, FILE *outfile)
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
/*
* Prepare for output to a memory buffer.
* The caller may supply an own initial buffer with appropriate size.
@@ -275,3 +284,4 @@ jpeg_mem_dest(j_compress_ptr cinfo, unsigned char **outbuffer,
dest->pub.next_output_byte = dest->buffer = *outbuffer;
dest->pub.free_in_buffer = dest->bufsize = *outsize;
}
#endif

View File

@@ -1,194 +0,0 @@
/*
* jdatasrc-tj.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* Modified 2009-2011 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright (C) 2011, 2016, 2019, 2023, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains decompression data source routines for the case of
* reading JPEG data from memory or from a file (or any stdio stream).
* While these routines are sufficient for most applications,
* some will want to use a different source manager.
* IMPORTANT: we assume that fread() will correctly transcribe an array of
* JOCTETs from 8-bit-wide elements on external storage. If char is wider
* than 8 bits on your machine, you may need to do some tweaking.
*/
/* this is not a core library module, so it doesn't define JPEG_INTERNALS */
#include "jinclude.h"
#include "jpeglib.h"
#include "jerror.h"
void jpeg_mem_src_tj(j_decompress_ptr cinfo, const unsigned char *inbuffer,
size_t insize);
/*
* Initialize source --- called by jpeg_read_header
* before any data is actually read.
*/
METHODDEF(void)
init_mem_source(j_decompress_ptr cinfo)
{
/* no work necessary here */
}
/*
* Fill the input buffer --- called whenever buffer is emptied.
*
* In typical applications, this should read fresh data into the buffer
* (ignoring the current state of next_input_byte & bytes_in_buffer),
* reset the pointer & count to the start of the buffer, and return TRUE
* indicating that the buffer has been reloaded. It is not necessary to
* fill the buffer entirely, only to obtain at least one more byte.
*
* There is no such thing as an EOF return. If the end of the file has been
* reached, the routine has a choice of ERREXIT() or inserting fake data into
* the buffer. In most cases, generating a warning message and inserting a
* fake EOI marker is the best course of action --- this will allow the
* decompressor to output however much of the image is there. However,
* the resulting error message is misleading if the real problem is an empty
* input file, so we handle that case specially.
*
* In applications that need to be able to suspend compression due to input
* not being available yet, a FALSE return indicates that no more data can be
* obtained right now, but more may be forthcoming later. In this situation,
* the decompressor will return to its caller (with an indication of the
* number of scanlines it has read, if any). The application should resume
* decompression after it has loaded more data into the input buffer. Note
* that there are substantial restrictions on the use of suspension --- see
* the documentation.
*
* When suspending, the decompressor will back up to a convenient restart point
* (typically the start of the current MCU). next_input_byte & bytes_in_buffer
* indicate where the restart point will be if the current call returns FALSE.
* Data beyond this point must be rescanned after resumption, so move it to
* the front of the buffer rather than discarding it.
*/
METHODDEF(boolean)
fill_mem_input_buffer(j_decompress_ptr cinfo)
{
static const JOCTET mybuffer[4] = {
(JOCTET)0xFF, (JOCTET)JPEG_EOI, 0, 0
};
/* The whole JPEG data is expected to reside in the supplied memory
* buffer, so any request for more data beyond the given buffer size
* is treated as an error.
*/
WARNMS(cinfo, JWRN_JPEG_EOF);
/* Insert a fake EOI marker */
cinfo->src->next_input_byte = mybuffer;
cinfo->src->bytes_in_buffer = 2;
return TRUE;
}
/*
* Skip data --- used to skip over a potentially large amount of
* uninteresting data (such as an APPn marker).
*
* Writers of suspendable-input applications must note that skip_input_data
* is not granted the right to give a suspension return. If the skip extends
* beyond the data currently in the buffer, the buffer can be marked empty so
* that the next read will cause a fill_input_buffer call that can suspend.
* Arranging for additional bytes to be discarded before reloading the input
* buffer is the application writer's problem.
*/
METHODDEF(void)
skip_input_data(j_decompress_ptr cinfo, long num_bytes)
{
struct jpeg_source_mgr *src = cinfo->src;
/* Just a dumb implementation for now. Could use fseek() except
* it doesn't work on pipes. Not clear that being smart is worth
* any trouble anyway --- large skips are infrequent.
*/
if (num_bytes > 0) {
while (num_bytes > (long)src->bytes_in_buffer) {
num_bytes -= (long)src->bytes_in_buffer;
(void)(*src->fill_input_buffer) (cinfo);
/* note we assume that fill_input_buffer will never return FALSE,
* so suspension need not be handled.
*/
}
src->next_input_byte += (size_t)num_bytes;
src->bytes_in_buffer -= (size_t)num_bytes;
}
}
/*
* An additional method that can be provided by data source modules is the
* resync_to_restart method for error recovery in the presence of RST markers.
* For the moment, this source module just uses the default resync method
* provided by the JPEG library. That method assumes that no backtracking
* is possible.
*/
/*
* Terminate source --- called by jpeg_finish_decompress
* after all data has been read. Often a no-op.
*
* NB: *not* called by jpeg_abort or jpeg_destroy; surrounding
* application must deal with any cleanup that should happen even
* for error exit.
*/
METHODDEF(void)
term_source(j_decompress_ptr cinfo)
{
/* no work necessary here */
}
/*
* Prepare for input from a supplied memory buffer.
* The buffer must contain the whole JPEG data.
*/
GLOBAL(void)
jpeg_mem_src_tj(j_decompress_ptr cinfo, const unsigned char *inbuffer,
size_t insize)
{
struct jpeg_source_mgr *src;
if (inbuffer == NULL || insize == 0) /* Treat empty input as fatal error */
ERREXIT(cinfo, JERR_INPUT_EMPTY);
/* The source object is made permanent so that a series of JPEG images
* can be read from the same buffer by calling jpeg_mem_src only before
* the first one.
*/
if (cinfo->src == NULL) { /* first time for this JPEG object? */
cinfo->src = (struct jpeg_source_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT,
sizeof(struct jpeg_source_mgr));
} else if (cinfo->src->init_source != init_mem_source) {
/* It is unsafe to reuse the existing source manager unless it was created
* by this function.
*/
ERREXIT(cinfo, JERR_BUFFER_SIZE);
}
src = cinfo->src;
src->init_source = init_mem_source;
src->fill_input_buffer = fill_mem_input_buffer;
src->skip_input_data = skip_input_data;
src->resync_to_restart = jpeg_resync_to_restart; /* use default method */
src->term_source = term_source;
src->bytes_in_buffer = insize;
src->next_input_byte = (const JOCTET *)inbuffer;
}

View File

@@ -56,11 +56,13 @@ init_source(j_decompress_ptr cinfo)
src->start_of_file = TRUE;
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
METHODDEF(void)
init_mem_source(j_decompress_ptr cinfo)
{
/* no work necessary here */
}
#endif
/*
@@ -121,6 +123,7 @@ fill_input_buffer(j_decompress_ptr cinfo)
return TRUE;
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
METHODDEF(boolean)
fill_mem_input_buffer(j_decompress_ptr cinfo)
{
@@ -141,6 +144,7 @@ fill_mem_input_buffer(j_decompress_ptr cinfo)
return TRUE;
}
#endif
/*
@@ -249,6 +253,7 @@ jpeg_stdio_src(j_decompress_ptr cinfo, FILE *infile)
}
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
/*
* Prepare for input from a supplied memory buffer.
* The buffer must contain the whole JPEG data.
@@ -287,3 +292,4 @@ jpeg_mem_src(j_decompress_ptr cinfo, const unsigned char *inbuffer,
src->bytes_in_buffer = (size_t)insize;
src->next_input_byte = (const JOCTET *)inbuffer;
}
#endif

View File

@@ -5,13 +5,13 @@
* Copyright (C) 1994-1997, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2010, 2015-2016, 2019-2020, 2022-2023, D. R. Commander.
* Copyright (C) 2010, 2015-2016, 2019-2020, D. R. Commander.
* Copyright (C) 2015, 2020, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains the coefficient buffer controller for decompression.
* This controller is the top level of the lossy JPEG decompressor proper.
* This controller is the top level of the JPEG decompressor proper.
* The coefficient buffer lies between entropy decoding and inverse-DCT steps.
*
* In buffered-image mode, this controller is the interface between
@@ -21,20 +21,19 @@
#include "jinclude.h"
#include "jdcoefct.h"
#include "jpegapicomp.h"
#include "jsamplecomp.h"
#include "jpegcomp.h"
/* Forward declarations */
METHODDEF(int) decompress_onepass(j_decompress_ptr cinfo,
_JSAMPIMAGE output_buf);
JSAMPIMAGE output_buf);
#ifdef D_MULTISCAN_FILES_SUPPORTED
METHODDEF(int) decompress_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf);
METHODDEF(int) decompress_data(j_decompress_ptr cinfo, JSAMPIMAGE output_buf);
#endif
#ifdef BLOCK_SMOOTHING_SUPPORTED
LOCAL(boolean) smoothing_ok(j_decompress_ptr cinfo);
METHODDEF(int) decompress_smooth_data(j_decompress_ptr cinfo,
_JSAMPIMAGE output_buf);
JSAMPIMAGE output_buf);
#endif
@@ -63,9 +62,9 @@ start_output_pass(j_decompress_ptr cinfo)
/* If multipass, check to see whether to use block smoothing on this pass */
if (coef->pub.coef_arrays != NULL) {
if (cinfo->do_block_smoothing && smoothing_ok(cinfo))
coef->pub._decompress_data = decompress_smooth_data;
coef->pub.decompress_data = decompress_smooth_data;
else
coef->pub._decompress_data = decompress_data;
coef->pub.decompress_data = decompress_data;
}
#endif
cinfo->output_iMCU_row = 0;
@@ -83,17 +82,17 @@ start_output_pass(j_decompress_ptr cinfo)
*/
METHODDEF(int)
decompress_onepass(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
decompress_onepass(j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
{
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
JDIMENSION MCU_col_num; /* index of current MCU within row */
JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1;
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
int blkn, ci, xindex, yindex, yoffset, useful_width;
_JSAMPARRAY output_ptr;
JSAMPARRAY output_ptr;
JDIMENSION start_col, output_col;
jpeg_component_info *compptr;
_inverse_DCT_method_ptr inverse_DCT;
inverse_DCT_method_ptr inverse_DCT;
/* Loop to process as much as one whole iMCU row */
for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
@@ -130,7 +129,7 @@ decompress_onepass(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
blkn += compptr->MCU_blocks;
continue;
}
inverse_DCT = cinfo->idct->_inverse_DCT[compptr->component_index];
inverse_DCT = cinfo->idct->inverse_DCT[compptr->component_index];
useful_width = (MCU_col_num < last_MCU_col) ?
compptr->MCU_width : compptr->last_col_width;
output_ptr = output_buf[compptr->component_index] +
@@ -263,7 +262,7 @@ consume_data(j_decompress_ptr cinfo)
*/
METHODDEF(int)
decompress_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
decompress_data(j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
{
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
@@ -271,10 +270,10 @@ decompress_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
int ci, block_row, block_rows;
JBLOCKARRAY buffer;
JBLOCKROW buffer_ptr;
_JSAMPARRAY output_ptr;
JSAMPARRAY output_ptr;
JDIMENSION output_col;
jpeg_component_info *compptr;
_inverse_DCT_method_ptr inverse_DCT;
inverse_DCT_method_ptr inverse_DCT;
/* Force some input to be done if we are getting ahead of the input. */
while (cinfo->input_scan_number < cinfo->output_scan_number ||
@@ -303,7 +302,7 @@ decompress_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
block_rows = (int)(compptr->height_in_blocks % compptr->v_samp_factor);
if (block_rows == 0) block_rows = compptr->v_samp_factor;
}
inverse_DCT = cinfo->idct->_inverse_DCT[ci];
inverse_DCT = cinfo->idct->inverse_DCT[ci];
output_ptr = output_buf[ci];
/* Loop over all DCT blocks to be processed. */
for (block_row = 0; block_row < block_rows; block_row++) {
@@ -426,20 +425,19 @@ smoothing_ok(j_decompress_ptr cinfo)
*/
METHODDEF(int)
decompress_smooth_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
decompress_smooth_data(j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
{
my_coef_ptr coef = (my_coef_ptr)cinfo->coef;
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
JDIMENSION block_num, last_block_column;
int ci, block_row, block_rows, access_rows, image_block_row,
image_block_rows;
int ci, block_row, block_rows, access_rows;
JBLOCKARRAY buffer;
JBLOCKROW buffer_ptr, prev_prev_block_row, prev_block_row;
JBLOCKROW next_block_row, next_next_block_row;
_JSAMPARRAY output_ptr;
JSAMPARRAY output_ptr;
JDIMENSION output_col;
jpeg_component_info *compptr;
_inverse_DCT_method_ptr inverse_DCT;
inverse_DCT_method_ptr inverse_DCT;
boolean change_dc;
JCOEF *workspace;
int *coef_bits;
@@ -477,7 +475,7 @@ decompress_smooth_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
if (!compptr->component_needed)
continue;
/* Count non-dummy DCT block rows in this iMCU row. */
if (cinfo->output_iMCU_row + 1 < last_iMCU_row) {
if (cinfo->output_iMCU_row < last_iMCU_row - 1) {
block_rows = compptr->v_samp_factor;
access_rows = block_rows * 3; /* this and next two iMCU rows */
} else if (cinfo->output_iMCU_row < last_iMCU_row) {
@@ -498,7 +496,6 @@ decompress_smooth_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
(JDIMENSION)access_rows, FALSE);
buffer += 2 * compptr->v_samp_factor; /* point to current iMCU row */
} else if (cinfo->output_iMCU_row > 0) {
access_rows += compptr->v_samp_factor; /* prior iMCU row too */
buffer = (*cinfo->mem->access_virt_barray)
((j_common_ptr)cinfo, coef->whole_image[ci],
(cinfo->output_iMCU_row - 1) * compptr->v_samp_factor,
@@ -538,33 +535,32 @@ decompress_smooth_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
Q21 = quanttbl->quantval[Q21_POS];
Q30 = quanttbl->quantval[Q30_POS];
}
inverse_DCT = cinfo->idct->_inverse_DCT[ci];
inverse_DCT = cinfo->idct->inverse_DCT[ci];
output_ptr = output_buf[ci];
/* Loop over all DCT blocks to be processed. */
image_block_rows = block_rows * cinfo->total_iMCU_rows;
for (block_row = 0; block_row < block_rows; block_row++) {
image_block_row = cinfo->output_iMCU_row * block_rows + block_row;
buffer_ptr = buffer[block_row] + cinfo->master->first_MCU_col[ci];
if (image_block_row > 0)
if (block_row > 0 || cinfo->output_iMCU_row > 0)
prev_block_row =
buffer[block_row - 1] + cinfo->master->first_MCU_col[ci];
else
prev_block_row = buffer_ptr;
if (image_block_row > 1)
if (block_row > 1 || cinfo->output_iMCU_row > 1)
prev_prev_block_row =
buffer[block_row - 2] + cinfo->master->first_MCU_col[ci];
else
prev_prev_block_row = prev_block_row;
if (image_block_row < image_block_rows - 1)
if (block_row < block_rows - 1 || cinfo->output_iMCU_row < last_iMCU_row)
next_block_row =
buffer[block_row + 1] + cinfo->master->first_MCU_col[ci];
else
next_block_row = buffer_ptr;
if (image_block_row < image_block_rows - 2)
if (block_row < block_rows - 2 ||
cinfo->output_iMCU_row < last_iMCU_row - 1)
next_next_block_row =
buffer[block_row + 2] + cinfo->master->first_MCU_col[ci];
else
@@ -587,11 +583,11 @@ decompress_smooth_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
/* Update DC values */
if (block_num == cinfo->master->first_MCU_col[ci] &&
block_num < last_block_column) {
DC04 = DC05 = (int)prev_prev_block_row[1][0];
DC09 = DC10 = (int)prev_block_row[1][0];
DC14 = DC15 = (int)buffer_ptr[1][0];
DC19 = DC20 = (int)next_block_row[1][0];
DC24 = DC25 = (int)next_next_block_row[1][0];
DC04 = (int)prev_prev_block_row[1][0];
DC09 = (int)prev_block_row[1][0];
DC14 = (int)buffer_ptr[1][0];
DC19 = (int)next_block_row[1][0];
DC24 = (int)next_next_block_row[1][0];
}
if (block_num + 1 < last_block_column) {
DC05 = (int)prev_prev_block_row[2][0];
@@ -814,13 +810,10 @@ decompress_smooth_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
*/
GLOBAL(void)
_jinit_d_coef_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
jinit_d_coef_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
{
my_coef_ptr coef;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
coef = (my_coef_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_coef_controller));
@@ -857,7 +850,7 @@ _jinit_d_coef_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
(JDIMENSION)access_rows);
}
coef->pub.consume_data = consume_data;
coef->pub._decompress_data = decompress_data;
coef->pub.decompress_data = decompress_data;
coef->pub.coef_arrays = coef->whole_image; /* link to virtual arrays */
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
@@ -874,7 +867,7 @@ _jinit_d_coef_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
coef->MCU_buffer[i] = buffer + i;
}
coef->pub.consume_data = dummy_consume_data;
coef->pub._decompress_data = decompress_onepass;
coef->pub.decompress_data = decompress_onepass;
coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */
}

View File

@@ -6,7 +6,6 @@
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2020, Google, Inc.
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*/
@@ -15,8 +14,6 @@
#include "jpeglib.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
/* Block smoothing is only applicable for progressive JPEG, so: */
#ifndef D_PROGRESSIVE_SUPPORTED
#undef BLOCK_SMOOTHING_SUPPORTED
@@ -84,5 +81,3 @@ start_iMCU_row(j_decompress_ptr cinfo)
coef->MCU_ctr = 0;
coef->MCU_vert_offset = 0;
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED) */

View File

@@ -5,7 +5,7 @@
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modifications:
* Copyright (C) 2013, Linaro Limited.
* Copyright (C) 2014-2015, 2022, D. R. Commander.
* Copyright (C) 2014-2015, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -17,19 +17,18 @@
INLINE
LOCAL(void)
ycc_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
ycc_rgb565_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int y, cb, cr;
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
register int *Crrtab = cconvert->Cr_r_tab;
register int *Cbbtab = cconvert->Cb_b_tab;
register JLONG *Crgtab = cconvert->Cr_g_tab;
@@ -92,27 +91,23 @@ ycc_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*(INT16 *)outptr = (INT16)rgb;
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
INLINE
LOCAL(void)
ycc_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
ycc_rgb565D_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int y, cb, cr;
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
register int *Crrtab = cconvert->Cr_r_tab;
register int *Cbbtab = cconvert->Cb_b_tab;
register JLONG *Crgtab = cconvert->Cr_g_tab;
@@ -182,20 +177,17 @@ ycc_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*(INT16 *)outptr = (INT16)rgb;
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
INLINE
LOCAL(void)
rgb_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
rgb_rgb565_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
SHIFT_TEMPS
@@ -245,14 +237,14 @@ rgb_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
rgb_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
rgb_rgb565D_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JDIMENSION col;
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
JDIMENSION num_cols = cinfo->output_width;
JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];
SHIFT_TEMPS
@@ -304,11 +296,11 @@ rgb_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
gray_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
gray_rgb565_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
register _JSAMPROW inptr, outptr;
register JSAMPROW inptr, outptr;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
@@ -344,13 +336,13 @@ gray_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
gray_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
gray_rgb565D_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
register _JSAMPROW inptr, outptr;
register JSAMPROW inptr, outptr;
register JDIMENSION col;
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
JDIMENSION num_cols = cinfo->output_width;
JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2009, 2011, 2015, 2022-2023, D. R. Commander.
* Copyright (C) 2009, 2011, 2015, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -28,19 +28,18 @@
INLINE
LOCAL(void)
ycc_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
ycc_rgb_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int y, cb, cr;
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
register int *Crrtab = cconvert->Cr_r_tab;
register int *Cbbtab = cconvert->Cb_b_tab;
register JLONG *Crgtab = cconvert->Cr_g_tab;
@@ -63,17 +62,14 @@ ycc_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
SCALEBITS))];
outptr[RGB_BLUE] = range_limit[y + Cbbtab[cb]];
/* Set unused byte to _MAXJSAMPLE so it can be interpreted as an */
/* opaque alpha channel value */
/* Set unused byte to 0xFF so it can be interpreted as an opaque */
/* alpha channel value */
#ifdef RGB_ALPHA
outptr[RGB_ALPHA] = _MAXJSAMPLE;
outptr[RGB_ALPHA] = 0xFF;
#endif
outptr += RGB_PIXELSIZE;
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -85,11 +81,11 @@ ycc_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
gray_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
gray_rgb_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
register _JSAMPROW inptr, outptr;
register JSAMPROW inptr, outptr;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
@@ -98,10 +94,10 @@ gray_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr = *output_buf++;
for (col = 0; col < num_cols; col++) {
outptr[RGB_RED] = outptr[RGB_GREEN] = outptr[RGB_BLUE] = inptr[col];
/* Set unused byte to _MAXJSAMPLE so it can be interpreted as an */
/* opaque alpha channel value */
/* Set unused byte to 0xFF so it can be interpreted as an opaque */
/* alpha channel value */
#ifdef RGB_ALPHA
outptr[RGB_ALPHA] = _MAXJSAMPLE;
outptr[RGB_ALPHA] = 0xFF;
#endif
outptr += RGB_PIXELSIZE;
}
@@ -115,12 +111,12 @@ gray_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
rgb_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf,
rgb_rgb_convert_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf,
int num_rows)
{
register _JSAMPROW inptr0, inptr1, inptr2;
register _JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
@@ -134,10 +130,10 @@ rgb_rgb_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr[RGB_RED] = inptr0[col];
outptr[RGB_GREEN] = inptr1[col];
outptr[RGB_BLUE] = inptr2[col];
/* Set unused byte to _MAXJSAMPLE so it can be interpreted as an */
/* opaque alpha channel value */
/* Set unused byte to 0xFF so it can be interpreted as an opaque */
/* alpha channel value */
#ifdef RGB_ALPHA
outptr[RGB_ALPHA] = _MAXJSAMPLE;
outptr[RGB_ALPHA] = 0xFF;
#endif
outptr += RGB_PIXELSIZE;
}

View File

@@ -6,7 +6,7 @@
* Modified 2011 by Guido Vollbeding.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2009, 2011-2012, 2014-2015, 2022, D. R. Commander.
* Copyright (C) 2009, 2011-2012, 2014-2015, D. R. Commander.
* Copyright (C) 2013, Linaro Limited.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@@ -18,17 +18,14 @@
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
#include "jsamplecomp.h"
#include "jconfigint.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
/* Private subobject */
typedef struct {
struct jpeg_color_deconverter pub; /* public fields */
#if BITS_IN_JSAMPLE != 16
/* Private state for YCC->RGB conversion */
int *Cr_r_tab; /* => table for Cr to R conversion */
int *Cb_b_tab; /* => table for Cb to B conversion */
@@ -37,7 +34,6 @@ typedef struct {
/* Private state for RGB->Y conversion */
JLONG *rgb_y_tab; /* => table for RGB to Y conversion */
#endif
} my_color_deconverter;
typedef my_color_deconverter *my_cconvert_ptr;
@@ -48,7 +44,7 @@ typedef my_color_deconverter *my_cconvert_ptr;
/*
* YCbCr is defined per CCIR 601-1, except that Cb and Cr are
* normalized to the range 0.._MAXJSAMPLE rather than -0.5 .. 0.5.
* normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
* The conversion equations to be implemented are therefore
*
* R = Y + 1.40200 * Cr
@@ -57,7 +53,7 @@ typedef my_color_deconverter *my_cconvert_ptr;
*
* Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
*
* where Cb and Cr represent the incoming values less _CENTERJSAMPLE.
* where Cb and Cr represent the incoming values less CENTERJSAMPLE.
* (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
*
* To avoid floating-point arithmetic, we represent the fractional constants
@@ -68,7 +64,7 @@ typedef my_color_deconverter *my_cconvert_ptr;
*
* For even more speed, we avoid doing any multiplications in the inner loop
* by precalculating the constants times Cb and Cr for all possible values.
* For 8-bit samples this is very reasonable (only 256 entries per table);
* For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
* for 12-bit samples it is still acceptable. It's not very reasonable for
* 16-bit samples, but if you want lossless storage you shouldn't be changing
* colorspace anyway.
@@ -89,9 +85,9 @@ typedef my_color_deconverter *my_cconvert_ptr;
*/
#define R_Y_OFF 0 /* offset to R => Y section */
#define G_Y_OFF (1 * (_MAXJSAMPLE + 1)) /* offset to G => Y section */
#define B_Y_OFF (2 * (_MAXJSAMPLE + 1)) /* etc. */
#define TABLE_SIZE (3 * (_MAXJSAMPLE + 1))
#define G_Y_OFF (1 * (MAXJSAMPLE + 1)) /* offset to G => Y section */
#define B_Y_OFF (2 * (MAXJSAMPLE + 1)) /* etc. */
#define TABLE_SIZE (3 * (MAXJSAMPLE + 1))
/* Include inline routines for colorspace extensions */
@@ -214,7 +210,6 @@ typedef my_color_deconverter *my_cconvert_ptr;
LOCAL(void)
build_ycc_rgb_table(j_decompress_ptr cinfo)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
int i;
JLONG x;
@@ -222,20 +217,20 @@ build_ycc_rgb_table(j_decompress_ptr cinfo)
cconvert->Cr_r_tab = (int *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(int));
(MAXJSAMPLE + 1) * sizeof(int));
cconvert->Cb_b_tab = (int *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(int));
(MAXJSAMPLE + 1) * sizeof(int));
cconvert->Cr_g_tab = (JLONG *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(JLONG));
(MAXJSAMPLE + 1) * sizeof(JLONG));
cconvert->Cb_g_tab = (JLONG *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(JLONG));
(MAXJSAMPLE + 1) * sizeof(JLONG));
for (i = 0, x = -_CENTERJSAMPLE; i <= _MAXJSAMPLE; i++, x++) {
/* i is the actual input pixel value, in the range 0.._MAXJSAMPLE */
/* The Cb or Cr value we are thinking of is x = i - _CENTERJSAMPLE */
for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
/* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
/* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
/* Cr=>R value is nearest int to 1.40200 * x */
cconvert->Cr_r_tab[i] = (int)
RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
@@ -248,9 +243,6 @@ build_ycc_rgb_table(j_decompress_ptr cinfo)
/* We also add in ONE_HALF so that need not do it in inner loop */
cconvert->Cb_g_tab[i] = (-FIX(0.34414)) * x + ONE_HALF;
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -259,8 +251,8 @@ build_ycc_rgb_table(j_decompress_ptr cinfo)
*/
METHODDEF(void)
ycc_rgb_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
ycc_rgb_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
switch (cinfo->out_color_space) {
case JCS_EXT_RGB:
@@ -309,7 +301,6 @@ ycc_rgb_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
LOCAL(void)
build_rgb_y_table(j_decompress_ptr cinfo)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
JLONG *rgb_y_tab;
JLONG i;
@@ -319,14 +310,11 @@ build_rgb_y_table(j_decompress_ptr cinfo)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(TABLE_SIZE * sizeof(JLONG)));
for (i = 0; i <= _MAXJSAMPLE; i++) {
for (i = 0; i <= MAXJSAMPLE; i++) {
rgb_y_tab[i + R_Y_OFF] = FIX(0.29900) * i;
rgb_y_tab[i + G_Y_OFF] = FIX(0.58700) * i;
rgb_y_tab[i + B_Y_OFF] = FIX(0.11400) * i + ONE_HALF;
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -335,15 +323,14 @@ build_rgb_y_table(j_decompress_ptr cinfo)
*/
METHODDEF(void)
rgb_gray_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
rgb_gray_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int r, g, b;
register JLONG *ctab = cconvert->rgb_y_tab;
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
@@ -358,13 +345,10 @@ rgb_gray_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
g = inptr1[col];
b = inptr2[col];
/* Y */
outptr[col] = (_JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
outptr[col] = (JSAMPLE)((ctab[r + R_Y_OFF] + ctab[g + G_Y_OFF] +
ctab[b + B_Y_OFF]) >> SCALEBITS);
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -374,10 +358,10 @@ rgb_gray_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
null_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
null_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
register _JSAMPROW inptr, inptr0, inptr1, inptr2, inptr3, outptr;
register JSAMPROW inptr, inptr0, inptr1, inptr2, inptr3, outptr;
register JDIMENSION col;
register int num_components = cinfo->num_components;
JDIMENSION num_cols = cinfo->output_width;
@@ -435,11 +419,11 @@ null_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
grayscale_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
grayscale_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
_jcopy_sample_rows(input_buf[0], (int)input_row, output_buf, 0, num_rows,
cinfo->output_width);
jcopy_sample_rows(input_buf[0], (int)input_row, output_buf, 0, num_rows,
cinfo->output_width);
}
@@ -448,8 +432,8 @@ grayscale_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
gray_rgb_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
gray_rgb_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
switch (cinfo->out_color_space) {
case JCS_EXT_RGB:
@@ -493,8 +477,8 @@ gray_rgb_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
rgb_rgb_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
rgb_rgb_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
switch (cinfo->out_color_space) {
case JCS_EXT_RGB:
@@ -541,18 +525,17 @@ rgb_rgb_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
ycck_cmyk_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
ycck_cmyk_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
#if BITS_IN_JSAMPLE != 16
my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert;
register int y, cb, cr;
register _JSAMPROW outptr;
register _JSAMPROW inptr0, inptr1, inptr2, inptr3;
register JSAMPROW outptr;
register JSAMPROW inptr0, inptr1, inptr2, inptr3;
register JDIMENSION col;
JDIMENSION num_cols = cinfo->output_width;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
register int *Crrtab = cconvert->Cr_r_tab;
register int *Cbbtab = cconvert->Cb_b_tab;
register JLONG *Crgtab = cconvert->Cr_g_tab;
@@ -571,19 +554,16 @@ ycck_cmyk_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
cb = inptr1[col];
cr = inptr2[col];
/* Range-limiting is essential due to noise introduced by DCT losses. */
outptr[0] = range_limit[_MAXJSAMPLE - (y + Crrtab[cr])]; /* red */
outptr[1] = range_limit[_MAXJSAMPLE - (y + /* green */
outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])]; /* red */
outptr[1] = range_limit[MAXJSAMPLE - (y + /* green */
((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
SCALEBITS)))];
outptr[2] = range_limit[_MAXJSAMPLE - (y + Cbbtab[cb])]; /* blue */
outptr[2] = range_limit[MAXJSAMPLE - (y + Cbbtab[cb])]; /* blue */
/* K passes through unchanged */
outptr[3] = inptr3[col];
outptr += 4;
}
}
#else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
#endif
}
@@ -673,8 +653,8 @@ static INLINE boolean is_big_endian(void)
METHODDEF(void)
ycc_rgb565_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
ycc_rgb565_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
if (is_big_endian())
ycc_rgb565_convert_be(cinfo, input_buf, input_row, output_buf, num_rows);
@@ -684,8 +664,8 @@ ycc_rgb565_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
ycc_rgb565D_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
ycc_rgb565D_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
if (is_big_endian())
ycc_rgb565D_convert_be(cinfo, input_buf, input_row, output_buf, num_rows);
@@ -695,8 +675,8 @@ ycc_rgb565D_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
rgb_rgb565_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
rgb_rgb565_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
if (is_big_endian())
rgb_rgb565_convert_be(cinfo, input_buf, input_row, output_buf, num_rows);
@@ -706,8 +686,8 @@ rgb_rgb565_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
rgb_rgb565D_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
rgb_rgb565D_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
if (is_big_endian())
rgb_rgb565D_convert_be(cinfo, input_buf, input_row, output_buf, num_rows);
@@ -717,8 +697,8 @@ rgb_rgb565D_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
gray_rgb565_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
gray_rgb565_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
if (is_big_endian())
gray_rgb565_convert_be(cinfo, input_buf, input_row, output_buf, num_rows);
@@ -728,8 +708,8 @@ gray_rgb565_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
gray_rgb565D_convert(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION input_row, _JSAMPARRAY output_buf, int num_rows)
gray_rgb565D_convert(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
{
if (is_big_endian())
gray_rgb565D_convert_be(cinfo, input_buf, input_row, output_buf, num_rows);
@@ -754,14 +734,11 @@ start_pass_dcolor(j_decompress_ptr cinfo)
*/
GLOBAL(void)
_jinit_color_deconverter(j_decompress_ptr cinfo)
jinit_color_deconverter(j_decompress_ptr cinfo)
{
my_cconvert_ptr cconvert;
int ci;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
cconvert = (my_cconvert_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_color_deconverter));
@@ -796,24 +773,19 @@ _jinit_color_deconverter(j_decompress_ptr cinfo)
/* Set out_color_components and conversion method based on requested space.
* Also clear the component_needed flags for any unused components,
* so that earlier pipeline stages can avoid useless computation.
* NOTE: We do not allow any lossy color conversion algorithms in lossless
* mode.
*/
switch (cinfo->out_color_space) {
case JCS_GRAYSCALE:
if (cinfo->master->lossless &&
cinfo->jpeg_color_space != cinfo->out_color_space)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
cinfo->out_color_components = 1;
if (cinfo->jpeg_color_space == JCS_GRAYSCALE ||
cinfo->jpeg_color_space == JCS_YCbCr) {
cconvert->pub._color_convert = grayscale_convert;
cconvert->pub.color_convert = grayscale_convert;
/* For color->grayscale conversion, only the Y (0) component is needed */
for (ci = 1; ci < cinfo->num_components; ci++)
cinfo->comp_info[ci].component_needed = FALSE;
} else if (cinfo->jpeg_color_space == JCS_RGB) {
cconvert->pub._color_convert = rgb_gray_convert;
cconvert->pub.color_convert = rgb_gray_convert;
build_rgb_y_table(cinfo);
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
@@ -830,78 +802,65 @@ _jinit_color_deconverter(j_decompress_ptr cinfo)
case JCS_EXT_BGRA:
case JCS_EXT_ABGR:
case JCS_EXT_ARGB:
if (cinfo->master->lossless && cinfo->jpeg_color_space != JCS_RGB)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
cinfo->out_color_components = rgb_pixelsize[cinfo->out_color_space];
if (cinfo->jpeg_color_space == JCS_YCbCr) {
#ifdef WITH_SIMD
if (jsimd_can_ycc_rgb())
cconvert->pub._color_convert = jsimd_ycc_rgb_convert;
else
#endif
{
cconvert->pub._color_convert = ycc_rgb_convert;
cconvert->pub.color_convert = jsimd_ycc_rgb_convert;
else {
cconvert->pub.color_convert = ycc_rgb_convert;
build_ycc_rgb_table(cinfo);
}
} else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
cconvert->pub._color_convert = gray_rgb_convert;
cconvert->pub.color_convert = gray_rgb_convert;
} else if (cinfo->jpeg_color_space == JCS_RGB) {
if (rgb_red[cinfo->out_color_space] == 0 &&
rgb_green[cinfo->out_color_space] == 1 &&
rgb_blue[cinfo->out_color_space] == 2 &&
rgb_pixelsize[cinfo->out_color_space] == 3)
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
else
cconvert->pub._color_convert = rgb_rgb_convert;
cconvert->pub.color_convert = rgb_rgb_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
case JCS_RGB565:
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
cinfo->out_color_components = 3;
if (cinfo->dither_mode == JDITHER_NONE) {
if (cinfo->jpeg_color_space == JCS_YCbCr) {
#ifdef WITH_SIMD
if (jsimd_can_ycc_rgb565())
cconvert->pub._color_convert = jsimd_ycc_rgb565_convert;
else
#endif
{
cconvert->pub._color_convert = ycc_rgb565_convert;
cconvert->pub.color_convert = jsimd_ycc_rgb565_convert;
else {
cconvert->pub.color_convert = ycc_rgb565_convert;
build_ycc_rgb_table(cinfo);
}
} else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
cconvert->pub._color_convert = gray_rgb565_convert;
cconvert->pub.color_convert = gray_rgb565_convert;
} else if (cinfo->jpeg_color_space == JCS_RGB) {
cconvert->pub._color_convert = rgb_rgb565_convert;
cconvert->pub.color_convert = rgb_rgb565_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
} else {
/* only ordered dithering is supported */
if (cinfo->jpeg_color_space == JCS_YCbCr) {
cconvert->pub._color_convert = ycc_rgb565D_convert;
cconvert->pub.color_convert = ycc_rgb565D_convert;
build_ycc_rgb_table(cinfo);
} else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
cconvert->pub._color_convert = gray_rgb565D_convert;
cconvert->pub.color_convert = gray_rgb565D_convert;
} else if (cinfo->jpeg_color_space == JCS_RGB) {
cconvert->pub._color_convert = rgb_rgb565D_convert;
cconvert->pub.color_convert = rgb_rgb565D_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
}
break;
case JCS_CMYK:
if (cinfo->master->lossless &&
cinfo->jpeg_color_space != cinfo->out_color_space)
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
cinfo->out_color_components = 4;
if (cinfo->jpeg_color_space == JCS_YCCK) {
cconvert->pub._color_convert = ycck_cmyk_convert;
cconvert->pub.color_convert = ycck_cmyk_convert;
build_ycc_rgb_table(cinfo);
} else if (cinfo->jpeg_color_space == JCS_CMYK) {
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
} else
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
@@ -910,7 +869,7 @@ _jinit_color_deconverter(j_decompress_ptr cinfo)
/* Permit null conversion to same output space */
if (cinfo->out_color_space == cinfo->jpeg_color_space) {
cinfo->out_color_components = cinfo->num_components;
cconvert->pub._color_convert = null_convert;
cconvert->pub.color_convert = null_convert;
} else /* unsupported non-null conversion */
ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
break;
@@ -921,5 +880,3 @@ _jinit_color_deconverter(j_decompress_ptr cinfo)
else
cinfo->output_components = cinfo->out_color_components;
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED) */

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2015, 2022, D. R. Commander.
* Copyright (C) 2015, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -15,15 +15,13 @@
* machine-dependent tuning (e.g., assembly coding).
*/
#include "jsamplecomp.h"
/*
* A forward DCT routine is given a pointer to a work area of type DCTELEM[];
* the DCT is to be performed in-place in that buffer. Type DCTELEM is int
* for 8-bit samples, JLONG for 12-bit samples. (NOTE: Floating-point DCT
* implementations use an array of type FAST_FLOAT, instead.)
* The DCT inputs are expected to be signed (range +-_CENTERJSAMPLE).
* The DCT inputs are expected to be signed (range +-CENTERJSAMPLE).
* The DCT outputs are returned scaled up by a factor of 8; they therefore
* have a range of +-8K for 8-bit data, +-128K for 12-bit data. This
* convention improves accuracy in integer implementations and saves some
@@ -78,89 +76,78 @@ typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */
/*
* Each IDCT routine is responsible for range-limiting its results and
* converting them to unsigned form (0.._MAXJSAMPLE). The raw outputs could
* converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could
* be quite far out of range if the input data is corrupt, so a bulletproof
* range-limiting step is required. We use a mask-and-table-lookup method
* to do the combined operations quickly. See the comments with
* prepare_range_limit_table (in jdmaster.c) for more info.
*/
#define IDCT_range_limit(cinfo) \
((_JSAMPLE *)((cinfo)->sample_range_limit) + _CENTERJSAMPLE)
#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE)
#define RANGE_MASK (_MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */
#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */
/* Extern declarations for the forward and inverse DCT routines. */
EXTERN(void) _jpeg_fdct_islow(DCTELEM *data);
EXTERN(void) _jpeg_fdct_ifast(DCTELEM *data);
EXTERN(void) jpeg_fdct_islow(DCTELEM *data);
EXTERN(void) jpeg_fdct_ifast(DCTELEM *data);
EXTERN(void) jpeg_fdct_float(FAST_FLOAT *data);
EXTERN(void) _jpeg_idct_islow(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_ifast(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_float(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_7x7(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_6x6(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_5x5(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_4x4(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_3x3(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_2x2(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_1x1(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_9x9(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
_JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) _jpeg_idct_10x10(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_11x11(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_12x12(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_13x13(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_14x14(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_15x15(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) _jpeg_idct_16x16(j_decompress_ptr cinfo,
jpeg_component_info *compptr,
JCOEFPTR coef_block, _JSAMPARRAY output_buf,
JDIMENSION output_col);
EXTERN(void) jpeg_idct_islow(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_ifast(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_float(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_7x7(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_6x6(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_5x5(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_4x4(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_3x3(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_2x2(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_1x1(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_9x9(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_10x10(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_11x11(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_12x12(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_13x13(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_14x14(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_15x15(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
EXTERN(void) jpeg_idct_16x16(j_decompress_ptr cinfo,
jpeg_component_info *compptr, JCOEFPTR coef_block,
JSAMPARRAY output_buf, JDIMENSION output_col);
/*

View File

@@ -26,7 +26,7 @@
#include "jpeglib.h"
#include "jdct.h" /* Private declarations for DCT subsystem */
#include "jsimddct.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
/*
@@ -100,7 +100,7 @@ start_pass(j_decompress_ptr cinfo)
int ci, i;
jpeg_component_info *compptr;
int method = 0;
_inverse_DCT_method_ptr method_ptr = NULL;
inverse_DCT_method_ptr method_ptr = NULL;
JQUANT_TBL *qtbl;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
@@ -109,46 +109,42 @@ start_pass(j_decompress_ptr cinfo)
switch (compptr->_DCT_scaled_size) {
#ifdef IDCT_SCALING_SUPPORTED
case 1:
method_ptr = _jpeg_idct_1x1;
method_ptr = jpeg_idct_1x1;
method = JDCT_ISLOW; /* jidctred uses islow-style table */
break;
case 2:
#ifdef WITH_SIMD
if (jsimd_can_idct_2x2())
method_ptr = jsimd_idct_2x2;
else
#endif
method_ptr = _jpeg_idct_2x2;
method_ptr = jpeg_idct_2x2;
method = JDCT_ISLOW; /* jidctred uses islow-style table */
break;
case 3:
method_ptr = _jpeg_idct_3x3;
method_ptr = jpeg_idct_3x3;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 4:
#ifdef WITH_SIMD
if (jsimd_can_idct_4x4())
method_ptr = jsimd_idct_4x4;
else
#endif
method_ptr = _jpeg_idct_4x4;
method_ptr = jpeg_idct_4x4;
method = JDCT_ISLOW; /* jidctred uses islow-style table */
break;
case 5:
method_ptr = _jpeg_idct_5x5;
method_ptr = jpeg_idct_5x5;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 6:
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_can_idct_6x6())
method_ptr = jsimd_idct_6x6;
else
#endif
method_ptr = _jpeg_idct_6x6;
method_ptr = jpeg_idct_6x6;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 7:
method_ptr = _jpeg_idct_7x7;
method_ptr = jpeg_idct_7x7;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
#endif
@@ -156,34 +152,28 @@ start_pass(j_decompress_ptr cinfo)
switch (cinfo->dct_method) {
#ifdef DCT_ISLOW_SUPPORTED
case JDCT_ISLOW:
#ifdef WITH_SIMD
if (jsimd_can_idct_islow())
method_ptr = jsimd_idct_islow;
else
#endif
method_ptr = _jpeg_idct_islow;
method_ptr = jpeg_idct_islow;
method = JDCT_ISLOW;
break;
#endif
#ifdef DCT_IFAST_SUPPORTED
case JDCT_IFAST:
#ifdef WITH_SIMD
if (jsimd_can_idct_ifast())
method_ptr = jsimd_idct_ifast;
else
#endif
method_ptr = _jpeg_idct_ifast;
method_ptr = jpeg_idct_ifast;
method = JDCT_IFAST;
break;
#endif
#ifdef DCT_FLOAT_SUPPORTED
case JDCT_FLOAT:
#ifdef WITH_SIMD
if (jsimd_can_idct_float())
method_ptr = jsimd_idct_float;
else
#endif
method_ptr = _jpeg_idct_float;
method_ptr = jpeg_idct_float;
method = JDCT_FLOAT;
break;
#endif
@@ -194,40 +184,40 @@ start_pass(j_decompress_ptr cinfo)
break;
#ifdef IDCT_SCALING_SUPPORTED
case 9:
method_ptr = _jpeg_idct_9x9;
method_ptr = jpeg_idct_9x9;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 10:
method_ptr = _jpeg_idct_10x10;
method_ptr = jpeg_idct_10x10;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 11:
method_ptr = _jpeg_idct_11x11;
method_ptr = jpeg_idct_11x11;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 12:
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_can_idct_12x12())
method_ptr = jsimd_idct_12x12;
else
#endif
method_ptr = _jpeg_idct_12x12;
method_ptr = jpeg_idct_12x12;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 13:
method_ptr = _jpeg_idct_13x13;
method_ptr = jpeg_idct_13x13;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 14:
method_ptr = _jpeg_idct_14x14;
method_ptr = jpeg_idct_14x14;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 15:
method_ptr = _jpeg_idct_15x15;
method_ptr = jpeg_idct_15x15;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
case 16:
method_ptr = _jpeg_idct_16x16;
method_ptr = jpeg_idct_16x16;
method = JDCT_ISLOW; /* jidctint uses islow-style table */
break;
#endif
@@ -235,7 +225,7 @@ start_pass(j_decompress_ptr cinfo)
ERREXIT1(cinfo, JERR_BAD_DCTSIZE, compptr->_DCT_scaled_size);
break;
}
idct->pub._inverse_DCT[ci] = method_ptr;
idct->pub.inverse_DCT[ci] = method_ptr;
/* Create multiplier table from quant table.
* However, we can skip this if the component is uninteresting
* or if we already built the table. Also, if no quant table
@@ -337,15 +327,12 @@ start_pass(j_decompress_ptr cinfo)
*/
GLOBAL(void)
_jinit_inverse_dct(j_decompress_ptr cinfo)
jinit_inverse_dct(j_decompress_ptr cinfo)
{
my_idct_ptr idct;
int ci;
jpeg_component_info *compptr;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
idct = (my_idct_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_idct_controller));

View File

@@ -1,403 +0,0 @@
/*
* jddiffct.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains the [un]difference buffer controller for decompression.
* This controller is the top level of the lossless JPEG decompressor proper.
* The difference buffer lies between the entropy decoding and
* prediction/undifferencing steps. The undifference buffer lies between the
* prediction/undifferencing and scaling steps.
*
* In buffered-image mode, this controller is the interface between
* input-oriented processing and output-oriented processing.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jlossls.h" /* Private declarations for lossless codec */
#ifdef D_LOSSLESS_SUPPORTED
/* Private buffer controller object */
typedef struct {
struct jpeg_d_coef_controller pub; /* public fields */
/* These variables keep track of the current location of the input side. */
/* cinfo->input_iMCU_row is also used for this. */
JDIMENSION MCU_ctr; /* counts MCUs processed in current row */
unsigned int restart_rows_to_go; /* MCU rows left in this restart
interval */
unsigned int MCU_vert_offset; /* counts MCU rows within iMCU row */
unsigned int MCU_rows_per_iMCU_row; /* number of such rows needed */
/* The output side's location is represented by cinfo->output_iMCU_row. */
JDIFFARRAY diff_buf[MAX_COMPONENTS]; /* iMCU row of differences */
JDIFFARRAY undiff_buf[MAX_COMPONENTS]; /* iMCU row of undiff'd samples */
#ifdef D_MULTISCAN_FILES_SUPPORTED
/* In multi-pass modes, we need a virtual sample array for each component. */
jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
#endif
} my_diff_controller;
typedef my_diff_controller *my_diff_ptr;
/* Forward declarations */
METHODDEF(int) decompress_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf);
#ifdef D_MULTISCAN_FILES_SUPPORTED
METHODDEF(int) output_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf);
#endif
LOCAL(void)
start_iMCU_row(j_decompress_ptr cinfo)
/* Reset within-iMCU-row counters for a new row (input side) */
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
/* In an interleaved scan, an MCU row is the same as an iMCU row.
* In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows.
* But at the bottom of the image, process only what's left.
*/
if (cinfo->comps_in_scan > 1) {
diff->MCU_rows_per_iMCU_row = 1;
} else {
if (cinfo->input_iMCU_row < (cinfo->total_iMCU_rows-1))
diff->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor;
else
diff->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height;
}
diff->MCU_ctr = 0;
diff->MCU_vert_offset = 0;
}
/*
* Initialize for an input processing pass.
*/
METHODDEF(void)
start_input_pass(j_decompress_ptr cinfo)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
/* Because it is hitching a ride on the jpeg_inverse_dct struct,
* start_pass_lossless() will be called at the start of the output pass.
* This ensures that it will be called at the start of the input pass as
* well.
*/
(*cinfo->idct->start_pass) (cinfo);
/* Check that the restart interval is an integer multiple of the number
* of MCUs in an MCU row.
*/
if (cinfo->restart_interval % cinfo->MCUs_per_row != 0)
ERREXIT2(cinfo, JERR_BAD_RESTART,
cinfo->restart_interval, cinfo->MCUs_per_row);
/* Initialize restart counter */
diff->restart_rows_to_go = cinfo->restart_interval / cinfo->MCUs_per_row;
cinfo->input_iMCU_row = 0;
start_iMCU_row(cinfo);
}
/*
* Check for a restart marker & resynchronize decoder, undifferencer.
* Returns FALSE if must suspend.
*/
METHODDEF(boolean)
process_restart(j_decompress_ptr cinfo)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
if (!(*cinfo->entropy->process_restart) (cinfo))
return FALSE;
(*cinfo->idct->start_pass) (cinfo);
/* Reset restart counter */
diff->restart_rows_to_go = cinfo->restart_interval / cinfo->MCUs_per_row;
return TRUE;
}
/*
* Initialize for an output processing pass.
*/
METHODDEF(void)
start_output_pass(j_decompress_ptr cinfo)
{
cinfo->output_iMCU_row = 0;
}
/*
* Decompress and return some data in the supplied buffer.
* Always attempts to emit one fully interleaved MCU row ("iMCU" row).
* Input and output must run in lockstep since we have only a one-MCU buffer.
* Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED.
*
* NB: output_buf contains a plane for each component in image,
* which we index according to the component's SOF position.
*/
METHODDEF(int)
decompress_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
lossless_decomp_ptr losslessd = (lossless_decomp_ptr)cinfo->idct;
JDIMENSION MCU_col_num; /* index of current MCU within row */
JDIMENSION MCU_count; /* number of MCUs decoded */
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
int ci, compi, row, prev_row;
unsigned int yoffset;
jpeg_component_info *compptr;
/* Loop to process as much as one whole iMCU row */
for (yoffset = diff->MCU_vert_offset; yoffset < diff->MCU_rows_per_iMCU_row;
yoffset++) {
/* Process restart marker if needed; may have to suspend */
if (cinfo->restart_interval) {
if (diff->restart_rows_to_go == 0)
if (!process_restart(cinfo))
return JPEG_SUSPENDED;
}
MCU_col_num = diff->MCU_ctr;
/* Try to fetch an MCU row (or remaining portion of suspended MCU row). */
MCU_count =
(*cinfo->entropy->decode_mcus) (cinfo,
diff->diff_buf, yoffset, MCU_col_num,
cinfo->MCUs_per_row - MCU_col_num);
if (MCU_count != cinfo->MCUs_per_row - MCU_col_num) {
/* Suspension forced; update state counters and exit */
diff->MCU_vert_offset = yoffset;
diff->MCU_ctr += MCU_count;
return JPEG_SUSPENDED;
}
/* Account for restart interval (no-op if not using restarts) */
if (cinfo->restart_interval)
diff->restart_rows_to_go--;
/* Completed an MCU row, but perhaps not an iMCU row */
diff->MCU_ctr = 0;
}
/*
* Undifference and scale each scanline of the disassembled MCU row
* separately. We do not process dummy samples at the end of a scanline
* or dummy rows at the end of the image.
*/
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
compi = compptr->component_index;
for (row = 0, prev_row = compptr->v_samp_factor - 1;
row < (cinfo->input_iMCU_row == last_iMCU_row ?
compptr->last_row_height : compptr->v_samp_factor);
prev_row = row, row++) {
(*losslessd->predict_undifference[compi])
(cinfo, compi, diff->diff_buf[compi][row],
diff->undiff_buf[compi][prev_row], diff->undiff_buf[compi][row],
compptr->width_in_blocks);
(*losslessd->scaler_scale) (cinfo, diff->undiff_buf[compi][row],
output_buf[compi][row],
compptr->width_in_blocks);
}
}
/* Completed the iMCU row, advance counters for next one.
*
* NB: output_data will increment output_iMCU_row.
* This counter is not needed for the single-pass case
* or the input side of the multi-pass case.
*/
if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) {
start_iMCU_row(cinfo);
return JPEG_ROW_COMPLETED;
}
/* Completed the scan */
(*cinfo->inputctl->finish_input_pass) (cinfo);
return JPEG_SCAN_COMPLETED;
}
/*
* Dummy consume-input routine for single-pass operation.
*/
METHODDEF(int)
dummy_consume_data(j_decompress_ptr cinfo)
{
return JPEG_SUSPENDED; /* Always indicate nothing was done */
}
#ifdef D_MULTISCAN_FILES_SUPPORTED
/*
* Consume input data and store it in the full-image sample buffer.
* We read as much as one fully interleaved MCU row ("iMCU" row) per call,
* ie, v_samp_factor rows for each component in the scan.
* Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED.
*/
METHODDEF(int)
consume_data(j_decompress_ptr cinfo)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
int ci, compi;
_JSAMPARRAY buffer[MAX_COMPS_IN_SCAN];
jpeg_component_info *compptr;
/* Align the virtual buffers for the components used in this scan. */
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
compi = compptr->component_index;
buffer[compi] = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, diff->whole_image[compi],
cinfo->input_iMCU_row * compptr->v_samp_factor,
(JDIMENSION)compptr->v_samp_factor, TRUE);
}
return decompress_data(cinfo, buffer);
}
/*
* Output some data from the full-image sample buffer in the multi-pass case.
* Always attempts to emit one fully interleaved MCU row ("iMCU" row).
* Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED.
*
* NB: output_buf contains a plane for each component in image.
*/
METHODDEF(int)
output_data(j_decompress_ptr cinfo, _JSAMPIMAGE output_buf)
{
my_diff_ptr diff = (my_diff_ptr)cinfo->coef;
JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
int ci, samp_rows, row;
_JSAMPARRAY buffer;
jpeg_component_info *compptr;
/* Force some input to be done if we are getting ahead of the input. */
while (cinfo->input_scan_number < cinfo->output_scan_number ||
(cinfo->input_scan_number == cinfo->output_scan_number &&
cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) {
if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED)
return JPEG_SUSPENDED;
}
/* OK, output from the virtual arrays. */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
/* Align the virtual buffer for this component. */
buffer = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, diff->whole_image[ci],
cinfo->output_iMCU_row * compptr->v_samp_factor,
(JDIMENSION)compptr->v_samp_factor, FALSE);
if (cinfo->output_iMCU_row < last_iMCU_row)
samp_rows = compptr->v_samp_factor;
else {
/* NB: can't use last_row_height here; it is input-side-dependent! */
samp_rows = (int)(compptr->height_in_blocks % compptr->v_samp_factor);
if (samp_rows == 0) samp_rows = compptr->v_samp_factor;
}
for (row = 0; row < samp_rows; row++) {
memcpy(output_buf[ci][row], buffer[row],
compptr->width_in_blocks * sizeof(_JSAMPLE));
}
}
if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows)
return JPEG_ROW_COMPLETED;
return JPEG_SCAN_COMPLETED;
}
#endif /* D_MULTISCAN_FILES_SUPPORTED */
/*
* Initialize difference buffer controller.
*/
GLOBAL(void)
_jinit_d_diff_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
{
my_diff_ptr diff;
int ci;
jpeg_component_info *compptr;
diff = (my_diff_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_diff_controller));
cinfo->coef = (struct jpeg_d_coef_controller *)diff;
diff->pub.start_input_pass = start_input_pass;
diff->pub.start_output_pass = start_output_pass;
/* Create the [un]difference buffers. */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
diff->diff_buf[ci] =
ALLOC_DARRAY(JPOOL_IMAGE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)compptr->v_samp_factor);
diff->undiff_buf[ci] =
ALLOC_DARRAY(JPOOL_IMAGE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)compptr->v_samp_factor);
}
if (need_full_buffer) {
#ifdef D_MULTISCAN_FILES_SUPPORTED
/* Allocate a full-image virtual array for each component. */
int access_rows;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
access_rows = compptr->v_samp_factor;
diff->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE, FALSE,
(JDIMENSION)jround_up((long)compptr->width_in_blocks,
(long)compptr->h_samp_factor),
(JDIMENSION)jround_up((long)compptr->height_in_blocks,
(long)compptr->v_samp_factor),
(JDIMENSION)access_rows);
}
diff->pub.consume_data = consume_data;
diff->pub._decompress_data = output_data;
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else {
diff->pub.consume_data = dummy_consume_data;
diff->pub._decompress_data = decompress_data;
diff->whole_image[0] = NULL; /* flag for no virtual arrays */
}
}
#endif /* D_LOSSLESS_SUPPORTED */

View File

@@ -3,10 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2009-2011, 2016, 2018-2019, 2022, D. R. Commander.
* Copyright (C) 2009-2011, 2016, 2018-2019, D. R. Commander.
* Copyright (C) 2018, Matthias Räncker.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@@ -26,8 +24,8 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jdhuff.h" /* Declarations shared with jd*huff.c */
#include "jpegapicomp.h"
#include "jdhuff.h" /* Declarations shared with jdphuff.c */
#include "jpegcomp.h"
#include "jstdhuff.c"
@@ -136,7 +134,7 @@ start_pass_huff_decoder(j_decompress_ptr cinfo)
* Compute the derived values for a Huffman table.
* This routine also performs some validation checks on the table.
*
* Note this is also used by jdphuff.c and jdlhuff.c.
* Note this is also used by jdphuff.c.
*/
GLOBAL(void)
@@ -247,14 +245,14 @@ jpeg_make_d_derived_tbl(j_decompress_ptr cinfo, boolean isDC, int tblno,
/* Validate symbols as being reasonable.
* For AC tables, we make no check, but accept all byte values 0..255.
* For DC tables, we require the symbols to be in range 0..15 in lossy mode
* and 0..16 in lossless mode. (Tighter bounds could be applied depending on
* the data depth and mode, but this is sufficient to ensure safe decoding.)
* For DC tables, we require the symbols to be in range 0..15.
* (Tighter bounds could be applied depending on the data depth and mode,
* but this is sufficient to ensure safe decoding.)
*/
if (isDC) {
for (i = 0; i < numsymbols; i++) {
int sym = htbl->huffval[i];
if (sym < 0 || sym > (cinfo->master->lossless ? 16 : 15))
if (sym < 0 || sym > 15)
ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
}
}
@@ -262,7 +260,7 @@ jpeg_make_d_derived_tbl(j_decompress_ptr cinfo, boolean isDC, int tblno,
/*
* Out-of-line code for bit fetching (shared with jdphuff.c and jdlhuff.c).
* Out-of-line code for bit fetching (shared with jdphuff.c).
* See jdhuff.h for info about usage.
* Note: current values of get_buffer and bits_left are passed as parameters,
* but are returned in the corresponding fields of the state struct.

View File

@@ -3,8 +3,6 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2010-2011, 2015-2016, 2021, D. R. Commander.
* Copyright (C) 2018, Matthias Räncker.
@@ -12,9 +10,8 @@
* file.
*
* This file contains declarations for Huffman entropy decoding routines
* that are shared between the sequential decoder (jdhuff.c), the progressive
* decoder (jdphuff.c), and the lossless decoder (jdlhuff.c). No other modules
* need to see these.
* that are shared between the sequential decoder (jdhuff.c) and the
* progressive decoder (jdphuff.c). No other modules need to see these.
*/
#include "jconfigint.h"

View File

@@ -3,8 +3,6 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2016, 2018, 2022, D. R. Commander.
* Copyright (C) 2015, Google, Inc.
@@ -13,15 +11,14 @@
*
* This file contains input control logic for the JPEG decompressor.
* These routines are concerned with controlling the decompressor's input
* processing (marker reading and coefficient/difference decoding).
* The actual input reading is done in jdmarker.c, jdhuff.c, jdphuff.c,
* and jdlhuff.c.
* processing (marker reading and coefficient decoding). The actual input
* reading is done in jdmarker.c, jdhuff.c, and jdphuff.c.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
/* Private state */
@@ -49,7 +46,6 @@ initial_setup(j_decompress_ptr cinfo)
{
int ci;
jpeg_component_info *compptr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
/* Make sure image isn't bigger than I can handle */
if ((long)cinfo->image_height > (long)JPEG_MAX_DIMENSION ||
@@ -57,12 +53,7 @@ initial_setup(j_decompress_ptr cinfo)
ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int)JPEG_MAX_DIMENSION);
/* For now, precision must match compiled-in value... */
#ifdef D_LOSSLESS_SUPPORTED
if (cinfo->data_precision != 8 && cinfo->data_precision != 12 &&
cinfo->data_precision != 16)
#else
if (cinfo->data_precision != 8 && cinfo->data_precision != 12)
#endif
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
/* Check that number of components won't exceed internal array sizes */
@@ -87,36 +78,36 @@ initial_setup(j_decompress_ptr cinfo)
}
#if JPEG_LIB_VERSION >= 80
cinfo->block_size = data_unit;
cinfo->block_size = DCTSIZE;
cinfo->natural_order = jpeg_natural_order;
cinfo->lim_Se = DCTSIZE2 - 1;
#endif
/* We initialize DCT_scaled_size and min_DCT_scaled_size to DCTSIZE in lossy
* mode. In the full decompressor, this will be overridden by jdmaster.c;
/* We initialize DCT_scaled_size and min_DCT_scaled_size to DCTSIZE.
* In the full decompressor, this will be overridden by jdmaster.c;
* but in the transcoder, jdmaster.c is not used, so we must do it here.
*/
#if JPEG_LIB_VERSION >= 70
cinfo->min_DCT_h_scaled_size = cinfo->min_DCT_v_scaled_size = data_unit;
cinfo->min_DCT_h_scaled_size = cinfo->min_DCT_v_scaled_size = DCTSIZE;
#else
cinfo->min_DCT_scaled_size = data_unit;
cinfo->min_DCT_scaled_size = DCTSIZE;
#endif
/* Compute dimensions of components */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
#if JPEG_LIB_VERSION >= 70
compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = data_unit;
compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = DCTSIZE;
#else
compptr->DCT_scaled_size = data_unit;
compptr->DCT_scaled_size = DCTSIZE;
#endif
/* Size in data units */
/* Size in DCT blocks */
compptr->width_in_blocks = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * (long)compptr->h_samp_factor,
(long)(cinfo->max_h_samp_factor * data_unit));
(long)(cinfo->max_h_samp_factor * DCTSIZE));
compptr->height_in_blocks = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * (long)compptr->v_samp_factor,
(long)(cinfo->max_v_samp_factor * data_unit));
(long)(cinfo->max_v_samp_factor * DCTSIZE));
/* Set the first and last MCU columns to decompress from multi-scan images.
* By default, decompress all of the MCU columns.
*/
@@ -142,7 +133,7 @@ initial_setup(j_decompress_ptr cinfo)
/* Compute number of fully interleaved MCU rows. */
cinfo->total_iMCU_rows = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height,
(long)(cinfo->max_v_samp_factor * data_unit));
(long)(cinfo->max_v_samp_factor * DCTSIZE));
/* Decide whether file contains multiple scans */
if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode)
@@ -159,7 +150,6 @@ per_scan_setup(j_decompress_ptr cinfo)
{
int ci, mcublks, tmp;
jpeg_component_info *compptr;
int data_unit = cinfo->master->lossless ? 1 : DCTSIZE;
if (cinfo->comps_in_scan == 1) {
@@ -170,14 +160,14 @@ per_scan_setup(j_decompress_ptr cinfo)
cinfo->MCUs_per_row = compptr->width_in_blocks;
cinfo->MCU_rows_in_scan = compptr->height_in_blocks;
/* For noninterleaved scan, always one data unit per MCU */
/* For noninterleaved scan, always one block per MCU */
compptr->MCU_width = 1;
compptr->MCU_height = 1;
compptr->MCU_blocks = 1;
compptr->MCU_sample_width = compptr->_DCT_scaled_size;
compptr->last_col_width = 1;
/* For noninterleaved scans, it is convenient to define last_row_height
* as the number of data unit rows present in the last iMCU row.
* as the number of block rows present in the last iMCU row.
*/
tmp = (int)(compptr->height_in_blocks % compptr->v_samp_factor);
if (tmp == 0) tmp = compptr->v_samp_factor;
@@ -197,22 +187,22 @@ per_scan_setup(j_decompress_ptr cinfo)
/* Overall image size in MCUs */
cinfo->MCUs_per_row = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width,
(long)(cinfo->max_h_samp_factor * data_unit));
(long)(cinfo->max_h_samp_factor * DCTSIZE));
cinfo->MCU_rows_in_scan = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height,
(long)(cinfo->max_v_samp_factor * data_unit));
(long)(cinfo->max_v_samp_factor * DCTSIZE));
cinfo->blocks_in_MCU = 0;
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
/* Sampling factors give # of data units of component in each MCU */
/* Sampling factors give # of blocks of component in each MCU */
compptr->MCU_width = compptr->h_samp_factor;
compptr->MCU_height = compptr->v_samp_factor;
compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height;
compptr->MCU_sample_width = compptr->MCU_width *
compptr->_DCT_scaled_size;
/* Figure number of non-dummy data units in last MCU column & row */
/* Figure number of non-dummy blocks in last MCU column & row */
tmp = (int)(compptr->width_in_blocks % compptr->MCU_width);
if (tmp == 0) tmp = compptr->MCU_width;
compptr->last_col_width = tmp;
@@ -291,8 +281,7 @@ METHODDEF(void)
start_input_pass(j_decompress_ptr cinfo)
{
per_scan_setup(cinfo);
if (!cinfo->master->lossless)
latch_quant_tables(cinfo);
latch_quant_tables(cinfo);
(*cinfo->entropy->start_pass) (cinfo);
(*cinfo->coef->start_input_pass) (cinfo);
cinfo->inputctl->consume_input = cinfo->coef->consume_data;
@@ -301,8 +290,8 @@ start_input_pass(j_decompress_ptr cinfo)
/*
* Finish up after inputting a compressed-data scan.
* This is called by the coefficient or difference controller after it's read
* all the expected data of the scan.
* This is called by the coefficient controller after it's read all
* the expected data of the scan.
*/
METHODDEF(void)
@@ -318,8 +307,8 @@ finish_input_pass(j_decompress_ptr cinfo)
* Return value is JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
*
* The consume_input method pointer points either here or to the
* coefficient or difference controller's consume_data routine, depending on
* whether we are reading a compressed data segment or inter-segment markers.
* coefficient controller's consume_data routine, depending on whether
* we are reading a compressed data segment or inter-segment markers.
*/
METHODDEF(int)

View File

@@ -1,302 +0,0 @@
/*
* jdlhuff.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains Huffman entropy decoding routines for lossless JPEG.
*
* Much of the complexity here has to do with supporting input suspension.
* If the data source module demands suspension, we want to be able to back
* up to the start of the current MCU. To do this, we copy state variables
* into local working storage, and update them back to the permanent
* storage only upon successful completion of an MCU.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jlossls.h" /* Private declarations for lossless codec */
#include "jdhuff.h" /* Declarations shared with jd*huff.c */
#ifdef D_LOSSLESS_SUPPORTED
typedef struct {
int ci, yoffset, MCU_width;
} lhd_output_ptr_info;
/*
* Expanded entropy decoder object for Huffman decoding in lossless mode.
*/
typedef struct {
struct jpeg_entropy_decoder pub; /* public fields */
/* These fields are loaded into local variables at start of each MCU.
* In case of suspension, we exit WITHOUT updating them.
*/
bitread_perm_state bitstate; /* Bit buffer at start of MCU */
/* Pointers to derived tables (these workspaces have image lifespan) */
d_derived_tbl *derived_tbls[NUM_HUFF_TBLS];
/* Precalculated info set up by start_pass for use in decode_mcus: */
/* Pointers to derived tables to be used for each data unit within an MCU */
d_derived_tbl *cur_tbls[D_MAX_BLOCKS_IN_MCU];
/* Pointers to the proper output difference row for each group of data units
* within an MCU. For each component, there are Vi groups of Hi data units.
*/
JDIFFROW output_ptr[D_MAX_BLOCKS_IN_MCU];
/* Number of output pointers in use for the current MCU. This is the sum
* of all Vi in the MCU.
*/
int num_output_ptrs;
/* Information used for positioning the output pointers within the output
* difference rows.
*/
lhd_output_ptr_info output_ptr_info[D_MAX_BLOCKS_IN_MCU];
/* Index of the proper output pointer for each data unit within an MCU */
int output_ptr_index[D_MAX_BLOCKS_IN_MCU];
} lhuff_entropy_decoder;
typedef lhuff_entropy_decoder *lhuff_entropy_ptr;
/*
* Initialize for a Huffman-compressed scan.
*/
METHODDEF(void)
start_pass_lhuff_decoder(j_decompress_ptr cinfo)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
int ci, dctbl, sampn, ptrn, yoffset, xoffset;
jpeg_component_info *compptr;
for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
compptr = cinfo->cur_comp_info[ci];
dctbl = compptr->dc_tbl_no;
/* Make sure requested tables are present */
if (dctbl < 0 || dctbl >= NUM_HUFF_TBLS ||
cinfo->dc_huff_tbl_ptrs[dctbl] == NULL)
ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, dctbl);
/* Compute derived values for Huffman tables */
/* We may do this more than once for a table, but it's not expensive */
jpeg_make_d_derived_tbl(cinfo, TRUE, dctbl,
&entropy->derived_tbls[dctbl]);
}
/* Precalculate decoding info for each sample in an MCU of this scan */
for (sampn = 0, ptrn = 0; sampn < cinfo->blocks_in_MCU;) {
compptr = cinfo->cur_comp_info[cinfo->MCU_membership[sampn]];
ci = compptr->component_index;
for (yoffset = 0; yoffset < compptr->MCU_height; yoffset++, ptrn++) {
/* Precalculate the setup info for each output pointer */
entropy->output_ptr_info[ptrn].ci = ci;
entropy->output_ptr_info[ptrn].yoffset = yoffset;
entropy->output_ptr_info[ptrn].MCU_width = compptr->MCU_width;
for (xoffset = 0; xoffset < compptr->MCU_width; xoffset++, sampn++) {
/* Precalculate the output pointer index for each sample */
entropy->output_ptr_index[sampn] = ptrn;
/* Precalculate which table to use for each sample */
entropy->cur_tbls[sampn] = entropy->derived_tbls[compptr->dc_tbl_no];
}
}
}
entropy->num_output_ptrs = ptrn;
/* Initialize bitread state variables */
entropy->bitstate.bits_left = 0;
entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify quiet */
entropy->pub.insufficient_data = FALSE;
}
/*
* Figure F.12: extend sign bit.
* On some machines, a shift and add will be faster than a table lookup.
*/
#define AVOID_TABLES
#ifdef AVOID_TABLES
#define NEG_1 ((unsigned int)-1)
#define HUFF_EXTEND(x, s) \
((x) + ((((x) - (1 << ((s) - 1))) >> 31) & (((NEG_1) << (s)) + 1)))
#else
#define HUFF_EXTEND(x, s) \
((x) < extend_test[s] ? (x) + extend_offset[s] : (x))
static const int extend_test[16] = { /* entry n is 2**(n-1) */
0, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000
};
static const int extend_offset[16] = { /* entry n is (-1 << n) + 1 */
0, ((-1) << 1) + 1, ((-1) << 2) + 1, ((-1) << 3) + 1, ((-1) << 4) + 1,
((-1) << 5) + 1, ((-1) << 6) + 1, ((-1) << 7) + 1, ((-1) << 8) + 1,
((-1) << 9) + 1, ((-1) << 10) + 1, ((-1) << 11) + 1, ((-1) << 12) + 1,
((-1) << 13) + 1, ((-1) << 14) + 1, ((-1) << 15) + 1
};
#endif /* AVOID_TABLES */
/*
* Check for a restart marker & resynchronize decoder.
* Returns FALSE if must suspend.
*/
LOCAL(boolean)
process_restart(j_decompress_ptr cinfo)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
/* Throw away any unused bits remaining in bit buffer; */
/* include any full bytes in next_marker's count of discarded bytes */
cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8;
entropy->bitstate.bits_left = 0;
/* Advance past the RSTn marker */
if (!(*cinfo->marker->read_restart_marker) (cinfo))
return FALSE;
/* Reset out-of-data flag, unless read_restart_marker left us smack up
* against a marker. In that case we will end up treating the next data
* segment as empty, and we can avoid producing bogus output pixels by
* leaving the flag set.
*/
if (cinfo->unread_marker == 0)
entropy->pub.insufficient_data = FALSE;
return TRUE;
}
/*
* Decode and return nMCU MCUs' worth of Huffman-compressed differences.
* Each MCU is also disassembled and placed accordingly in diff_buf.
*
* MCU_col_num specifies the column of the first MCU being requested within
* the MCU row. This tells us where to position the output row pointers in
* diff_buf.
*
* Returns the number of MCUs decoded. This may be less than nMCU MCUs if
* data source requested suspension. In that case no changes have been made
* to permanent state. (Exception: some output differences may already have
* been assigned. This is harmless for this module, since we'll just
* re-assign them on the next call.)
*/
METHODDEF(JDIMENSION)
decode_mcus(j_decompress_ptr cinfo, JDIFFIMAGE diff_buf,
JDIMENSION MCU_row_num, JDIMENSION MCU_col_num, JDIMENSION nMCU)
{
lhuff_entropy_ptr entropy = (lhuff_entropy_ptr)cinfo->entropy;
int sampn, ci, yoffset, MCU_width, ptrn;
JDIMENSION mcu_num;
BITREAD_STATE_VARS;
/* Set output pointer locations based on MCU_col_num */
for (ptrn = 0; ptrn < entropy->num_output_ptrs; ptrn++) {
ci = entropy->output_ptr_info[ptrn].ci;
yoffset = entropy->output_ptr_info[ptrn].yoffset;
MCU_width = entropy->output_ptr_info[ptrn].MCU_width;
entropy->output_ptr[ptrn] =
diff_buf[ci][MCU_row_num + yoffset] + (MCU_col_num * MCU_width);
}
/*
* If we've run out of data, zero out the buffers and return.
* By resetting the undifferencer, the output samples will be CENTERJSAMPLE.
*
* NB: We should find a way to do this without interacting with the
* undifferencer module directly.
*/
if (entropy->pub.insufficient_data) {
for (ptrn = 0; ptrn < entropy->num_output_ptrs; ptrn++)
jzero_far((void FAR *)entropy->output_ptr[ptrn],
nMCU * entropy->output_ptr_info[ptrn].MCU_width *
sizeof(JDIFF));
(*cinfo->idct->start_pass) (cinfo);
} else {
/* Load up working state */
BITREAD_LOAD_STATE(cinfo, entropy->bitstate);
/* Outer loop handles the number of MCUs requested */
for (mcu_num = 0; mcu_num < nMCU; mcu_num++) {
/* Inner loop handles the samples in the MCU */
for (sampn = 0; sampn < cinfo->blocks_in_MCU; sampn++) {
d_derived_tbl *dctbl = entropy->cur_tbls[sampn];
register int s, r;
/* Section H.2.2: decode the sample difference */
HUFF_DECODE(s, br_state, dctbl, return mcu_num, label1);
if (s) {
if (s == 16) /* special case: always output 32768 */
s = 32768;
else { /* normal case: fetch subsequent bits */
CHECK_BIT_BUFFER(br_state, s, return mcu_num);
r = GET_BITS(s);
s = HUFF_EXTEND(r, s);
}
}
/* Output the sample difference */
*entropy->output_ptr[entropy->output_ptr_index[sampn]]++ = (JDIFF)s;
}
/* Completed MCU, so update state */
BITREAD_SAVE_STATE(cinfo, entropy->bitstate);
}
}
return nMCU;
}
/*
* Module initialization routine for lossless mode Huffman entropy decoding.
*/
GLOBAL(void)
jinit_lhuff_decoder(j_decompress_ptr cinfo)
{
lhuff_entropy_ptr entropy;
int i;
entropy = (lhuff_entropy_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(lhuff_entropy_decoder));
cinfo->entropy = (struct jpeg_entropy_decoder *)entropy;
entropy->pub.start_pass = start_pass_lhuff_decoder;
entropy->pub.decode_mcus = decode_mcus;
entropy->pub.process_restart = process_restart;
/* Mark tables unallocated */
for (i = 0; i < NUM_HUFF_TBLS; i++) {
entropy->derived_tbls[i] = NULL;
}
}
#endif /* D_LOSSLESS_SUPPORTED */

View File

@@ -1,289 +0,0 @@
/*
* jdlossls.c
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1998, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
* This file contains prediction, sample undifferencing, point transform, and
* sample scaling routines for the lossless JPEG decompressor.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jlossls.h"
#ifdef D_LOSSLESS_SUPPORTED
/**************** Sample undifferencing (reconstruction) *****************/
/*
* In order to avoid a performance penalty for checking which predictor is
* being used and which row is being processed for each call of the
* undifferencer, and to promote optimization, we have separate undifferencing
* functions for each predictor selection value.
*
* We are able to avoid duplicating source code by implementing the predictors
* and undifferencers as macros. Each of the undifferencing functions is
* simply a wrapper around an UNDIFFERENCE macro with the appropriate PREDICTOR
* macro passed as an argument.
*/
/* Predictor for the first column of the first row: 2^(P-Pt-1) */
#define INITIAL_PREDICTORx (1 << (cinfo->data_precision - cinfo->Al - 1))
/* Predictor for the first column of the remaining rows: Rb */
#define INITIAL_PREDICTOR2 prev_row[0]
/*
* 1-Dimensional undifferencer routine.
*
* This macro implements the 1-D horizontal predictor (1). INITIAL_PREDICTOR
* is used as the special case predictor for the first column, which must be
* either INITIAL_PREDICTOR2 or INITIAL_PREDICTORx. The remaining samples
* use PREDICTOR1.
*
* The reconstructed sample is supposed to be calculated modulo 2^16, so we
* logically AND the result with 0xFFFF.
*/
#define UNDIFFERENCE_1D(INITIAL_PREDICTOR) \
int Ra; \
\
Ra = (*diff_buf++ + INITIAL_PREDICTOR) & 0xFFFF; \
*undiff_buf++ = Ra; \
\
while (--width) { \
Ra = (*diff_buf++ + PREDICTOR1) & 0xFFFF; \
*undiff_buf++ = Ra; \
}
/*
* 2-Dimensional undifferencer routine.
*
* This macro implements the 2-D horizontal predictors (#2-7). PREDICTOR2 is
* used as the special case predictor for the first column. The remaining
* samples use PREDICTOR, which is a function of Ra, Rb, and Rc.
*
* Because prev_row and output_buf may point to the same storage area (in an
* interleaved image with Vi=1, for example), we must take care to buffer Rb/Rc
* before writing the current reconstructed sample value into output_buf.
*
* The reconstructed sample is supposed to be calculated modulo 2^16, so we
* logically AND the result with 0xFFFF.
*/
#define UNDIFFERENCE_2D(PREDICTOR) \
int Ra, Rb, Rc; \
\
Rb = *prev_row++; \
Ra = (*diff_buf++ + PREDICTOR2) & 0xFFFF; \
*undiff_buf++ = Ra; \
\
while (--width) { \
Rc = Rb; \
Rb = *prev_row++; \
Ra = (*diff_buf++ + PREDICTOR) & 0xFFFF; \
*undiff_buf++ = Ra; \
}
/*
* Undifferencers for the second and subsequent rows in a scan or restart
* interval. The first sample in the row is undifferenced using the vertical
* predictor (2). The rest of the samples are undifferenced using the
* predictor specified in the scan header.
*/
METHODDEF(void)
jpeg_undifference1(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_1D(INITIAL_PREDICTOR2);
}
METHODDEF(void)
jpeg_undifference2(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_2D(PREDICTOR2);
(void)(Rc);
}
METHODDEF(void)
jpeg_undifference3(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_2D(PREDICTOR3);
}
METHODDEF(void)
jpeg_undifference4(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_2D(PREDICTOR4);
}
METHODDEF(void)
jpeg_undifference5(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_2D(PREDICTOR5);
}
METHODDEF(void)
jpeg_undifference6(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_2D(PREDICTOR6);
}
METHODDEF(void)
jpeg_undifference7(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
UNDIFFERENCE_2D(PREDICTOR7);
(void)(Rc);
}
/*
* Undifferencer for the first row in a scan or restart interval. The first
* sample in the row is undifferenced using the special predictor constant
* x=2^(P-Pt-1). The rest of the samples are undifferenced using the
* 1-D horizontal predictor (1).
*/
METHODDEF(void)
jpeg_undifference_first_row(j_decompress_ptr cinfo, int comp_index,
JDIFFROW diff_buf, JDIFFROW prev_row,
JDIFFROW undiff_buf, JDIMENSION width)
{
lossless_decomp_ptr losslessd = (lossless_decomp_ptr)cinfo->idct;
UNDIFFERENCE_1D(INITIAL_PREDICTORx);
/*
* Now that we have undifferenced the first row, we want to use the
* undifferencer that corresponds to the predictor specified in the
* scan header.
*/
switch (cinfo->Ss) {
case 1:
losslessd->predict_undifference[comp_index] = jpeg_undifference1;
break;
case 2:
losslessd->predict_undifference[comp_index] = jpeg_undifference2;
break;
case 3:
losslessd->predict_undifference[comp_index] = jpeg_undifference3;
break;
case 4:
losslessd->predict_undifference[comp_index] = jpeg_undifference4;
break;
case 5:
losslessd->predict_undifference[comp_index] = jpeg_undifference5;
break;
case 6:
losslessd->predict_undifference[comp_index] = jpeg_undifference6;
break;
case 7:
losslessd->predict_undifference[comp_index] = jpeg_undifference7;
break;
}
}
/*********************** Sample upscaling by 2^Pt ************************/
METHODDEF(void)
simple_upscale(j_decompress_ptr cinfo,
JDIFFROW diff_buf, _JSAMPROW output_buf, JDIMENSION width)
{
do {
*output_buf++ = (_JSAMPLE)(*diff_buf++ << cinfo->Al);
} while (--width);
}
METHODDEF(void)
noscale(j_decompress_ptr cinfo,
JDIFFROW diff_buf, _JSAMPROW output_buf, JDIMENSION width)
{
do {
*output_buf++ = (_JSAMPLE)(*diff_buf++);
} while (--width);
}
/*
* Initialize for an input processing pass.
*/
METHODDEF(void)
start_pass_lossless(j_decompress_ptr cinfo)
{
lossless_decomp_ptr losslessd = (lossless_decomp_ptr)cinfo->idct;
int ci;
/* Check that the scan parameters Ss, Se, Ah, Al are OK for lossless JPEG.
*
* Ss is the predictor selection value (psv). Legal values for sequential
* lossless JPEG are: 1 <= psv <= 7.
*
* Se and Ah are not used and should be zero.
*
* Al specifies the point transform (Pt).
* Legal values are: 0 <= Pt <= (data precision - 1).
*/
if (cinfo->Ss < 1 || cinfo->Ss > 7 ||
cinfo->Se != 0 || cinfo->Ah != 0 ||
cinfo->Al < 0 || cinfo->Al >= cinfo->data_precision)
ERREXIT4(cinfo, JERR_BAD_PROGRESSION,
cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
/* Set undifference functions to first row function */
for (ci = 0; ci < cinfo->num_components; ci++)
losslessd->predict_undifference[ci] = jpeg_undifference_first_row;
/* Set scaler function based on Pt */
if (cinfo->Al)
losslessd->scaler_scale = simple_upscale;
else
losslessd->scaler_scale = noscale;
}
/*
* Initialize the lossless decompressor.
*/
GLOBAL(void)
_jinit_lossless_decompressor(j_decompress_ptr cinfo)
{
lossless_decomp_ptr losslessd;
/* Create subobject in permanent pool */
losslessd = (lossless_decomp_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT,
sizeof(jpeg_lossless_decompressor));
cinfo->idct = (struct jpeg_inverse_dct *)losslessd;
losslessd->pub.start_pass = start_pass_lossless;
}
#endif /* D_LOSSLESS_SUPPORTED */

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2010, 2016, 2022, D. R. Commander.
* Copyright (C) 2010, 2016, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -18,17 +18,15 @@
#include "jinclude.h"
#include "jdmainct.h"
#include "jconfigint.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
/*
* In the current system design, the main buffer need never be a full-image
* buffer; any full-height buffers will be found inside the coefficient,
* difference, or postprocessing controllers. Nonetheless, the main controller
* is not trivial. Its responsibility is to provide context rows for
* upsampling/rescaling, and doing this in an efficient fashion is a bit
* tricky.
* buffer; any full-height buffers will be found inside the coefficient or
* postprocessing controllers. Nonetheless, the main controller is not
* trivial. Its responsibility is to provide context rows for upsampling/
* rescaling, and doing this in an efficient fashion is a bit tricky.
*
* Postprocessor input data is counted in "row groups". A row group
* is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size)
@@ -40,20 +38,20 @@
* row group (times any additional scale factor that the upsampler is
* applying).
*
* The coefficient or difference controller will deliver data to us one iMCU
* row at a time; each iMCU row contains v_samp_factor * DCT_scaled_size sample
* rows, or exactly min_DCT_scaled_size row groups. (This amount of data
* corresponds to one row of MCUs when the image is fully interleaved.) Note
* that the number of sample rows varies across components, but the number of
* row groups does not. Some garbage sample rows may be included in the last
* iMCU row at the bottom of the image.
* The coefficient controller will deliver data to us one iMCU row at a time;
* each iMCU row contains v_samp_factor * DCT_scaled_size sample rows, or
* exactly min_DCT_scaled_size row groups. (This amount of data corresponds
* to one row of MCUs when the image is fully interleaved.) Note that the
* number of sample rows varies across components, but the number of row
* groups does not. Some garbage sample rows may be included in the last iMCU
* row at the bottom of the image.
*
* Depending on the vertical scaling algorithm used, the upsampler may need
* access to the sample row(s) above and below its current input row group.
* The upsampler is required to set need_context_rows TRUE at global selection
* time if so. When need_context_rows is FALSE, this controller can simply
* obtain one iMCU row at a time from the coefficient or difference controller
* and dole it out as row groups to the postprocessor.
* obtain one iMCU row at a time from the coefficient controller and dole it
* out as row groups to the postprocessor.
*
* When need_context_rows is TRUE, this controller guarantees that the buffer
* passed to postprocessing contains at least one row group's worth of samples
@@ -116,16 +114,16 @@
/* Forward declarations */
METHODDEF(void) process_data_simple_main(j_decompress_ptr cinfo,
_JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail);
METHODDEF(void) process_data_context_main(j_decompress_ptr cinfo,
_JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail);
#ifdef QUANT_2PASS_SUPPORTED
METHODDEF(void) process_data_crank_post(j_decompress_ptr cinfo,
_JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail);
#endif
@@ -141,15 +139,14 @@ alloc_funny_pointers(j_decompress_ptr cinfo)
int ci, rgroup;
int M = cinfo->_min_DCT_scaled_size;
jpeg_component_info *compptr;
_JSAMPARRAY xbuf;
JSAMPARRAY xbuf;
/* Get top-level space for component array pointers.
* We alloc both arrays with one call to save a few cycles.
*/
main_ptr->xbuffer[0] = (_JSAMPIMAGE)
main_ptr->xbuffer[0] = (JSAMPIMAGE)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
cinfo->num_components * 2 *
sizeof(_JSAMPARRAY));
cinfo->num_components * 2 * sizeof(JSAMPARRAY));
main_ptr->xbuffer[1] = main_ptr->xbuffer[0] + cinfo->num_components;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
@@ -159,9 +156,9 @@ alloc_funny_pointers(j_decompress_ptr cinfo)
/* Get space for pointer lists --- M+4 row groups in each list.
* We alloc both pointer lists with one call to save a few cycles.
*/
xbuf = (_JSAMPARRAY)
xbuf = (JSAMPARRAY)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
2 * (rgroup * (M + 4)) * sizeof(_JSAMPROW));
2 * (rgroup * (M + 4)) * sizeof(JSAMPROW));
xbuf += rgroup; /* want one row group at negative offsets */
main_ptr->xbuffer[0][ci] = xbuf;
xbuf += rgroup * (M + 4);
@@ -183,7 +180,7 @@ make_funny_pointers(j_decompress_ptr cinfo)
int ci, i, rgroup;
int M = cinfo->_min_DCT_scaled_size;
jpeg_component_info *compptr;
_JSAMPARRAY buf, xbuf0, xbuf1;
JSAMPARRAY buf, xbuf0, xbuf1;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
@@ -223,7 +220,7 @@ set_bottom_pointers(j_decompress_ptr cinfo)
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
int ci, i, rgroup, iMCUheight, rows_left;
jpeg_component_info *compptr;
_JSAMPARRAY xbuf;
JSAMPARRAY xbuf;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
@@ -262,14 +259,14 @@ start_pass_main(j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
switch (pass_mode) {
case JBUF_PASS_THRU:
if (cinfo->upsample->need_context_rows) {
main_ptr->pub._process_data = process_data_context_main;
main_ptr->pub.process_data = process_data_context_main;
make_funny_pointers(cinfo); /* Create the xbuffer[] lists */
main_ptr->whichptr = 0; /* Read first iMCU row into xbuffer[0] */
main_ptr->context_state = CTX_PREPARE_FOR_IMCU;
main_ptr->iMCU_row_ctr = 0;
} else {
/* Simple case with no context needed */
main_ptr->pub._process_data = process_data_simple_main;
main_ptr->pub.process_data = process_data_simple_main;
}
main_ptr->buffer_full = FALSE; /* Mark buffer empty */
main_ptr->rowgroup_ctr = 0;
@@ -277,7 +274,7 @@ start_pass_main(j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
#ifdef QUANT_2PASS_SUPPORTED
case JBUF_CRANK_DEST:
/* For last pass of 2-pass quantization, just crank the postprocessor */
main_ptr->pub._process_data = process_data_crank_post;
main_ptr->pub.process_data = process_data_crank_post;
break;
#endif
default:
@@ -293,7 +290,7 @@ start_pass_main(j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
*/
METHODDEF(void)
process_data_simple_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
process_data_simple_main(j_decompress_ptr cinfo, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
{
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
@@ -301,7 +298,7 @@ process_data_simple_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
/* Read input data if we haven't filled the main buffer yet */
if (!main_ptr->buffer_full) {
if (!(*cinfo->coef->_decompress_data) (cinfo, main_ptr->buffer))
if (!(*cinfo->coef->decompress_data) (cinfo, main_ptr->buffer))
return; /* suspension forced, can do nothing more */
main_ptr->buffer_full = TRUE; /* OK, we have an iMCU row to work with */
}
@@ -314,9 +311,9 @@ process_data_simple_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
*/
/* Feed the postprocessor */
(*cinfo->post->_post_process_data) (cinfo, main_ptr->buffer,
&main_ptr->rowgroup_ctr, rowgroups_avail,
output_buf, out_row_ctr, out_rows_avail);
(*cinfo->post->post_process_data) (cinfo, main_ptr->buffer,
&main_ptr->rowgroup_ctr, rowgroups_avail,
output_buf, out_row_ctr, out_rows_avail);
/* Has postprocessor consumed all the data yet? If so, mark buffer empty */
if (main_ptr->rowgroup_ctr >= rowgroups_avail) {
@@ -332,15 +329,15 @@ process_data_simple_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
*/
METHODDEF(void)
process_data_context_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
process_data_context_main(j_decompress_ptr cinfo, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
{
my_main_ptr main_ptr = (my_main_ptr)cinfo->main;
/* Read input data if we haven't filled the main buffer yet */
if (!main_ptr->buffer_full) {
if (!(*cinfo->coef->_decompress_data) (cinfo,
main_ptr->xbuffer[main_ptr->whichptr]))
if (!(*cinfo->coef->decompress_data) (cinfo,
main_ptr->xbuffer[main_ptr->whichptr]))
return; /* suspension forced, can do nothing more */
main_ptr->buffer_full = TRUE; /* OK, we have an iMCU row to work with */
main_ptr->iMCU_row_ctr++; /* count rows received */
@@ -354,11 +351,11 @@ process_data_context_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
switch (main_ptr->context_state) {
case CTX_POSTPONED_ROW:
/* Call postprocessor using previously set pointers for postponed row */
(*cinfo->post->_post_process_data) (cinfo,
main_ptr->xbuffer[main_ptr->whichptr],
&main_ptr->rowgroup_ctr,
main_ptr->rowgroups_avail, output_buf,
out_row_ctr, out_rows_avail);
(*cinfo->post->post_process_data) (cinfo,
main_ptr->xbuffer[main_ptr->whichptr],
&main_ptr->rowgroup_ctr,
main_ptr->rowgroups_avail, output_buf,
out_row_ctr, out_rows_avail);
if (main_ptr->rowgroup_ctr < main_ptr->rowgroups_avail)
return; /* Need to suspend */
main_ptr->context_state = CTX_PREPARE_FOR_IMCU;
@@ -378,11 +375,11 @@ process_data_context_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
FALLTHROUGH /*FALLTHROUGH*/
case CTX_PROCESS_IMCU:
/* Call postprocessor using previously set pointers */
(*cinfo->post->_post_process_data) (cinfo,
main_ptr->xbuffer[main_ptr->whichptr],
&main_ptr->rowgroup_ctr,
main_ptr->rowgroups_avail, output_buf,
out_row_ctr, out_rows_avail);
(*cinfo->post->post_process_data) (cinfo,
main_ptr->xbuffer[main_ptr->whichptr],
&main_ptr->rowgroup_ctr,
main_ptr->rowgroups_avail, output_buf,
out_row_ctr, out_rows_avail);
if (main_ptr->rowgroup_ctr < main_ptr->rowgroups_avail)
return; /* Need to suspend */
/* After the first iMCU, change wraparound pointers to normal state */
@@ -409,12 +406,12 @@ process_data_context_main(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
#ifdef QUANT_2PASS_SUPPORTED
METHODDEF(void)
process_data_crank_post(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
process_data_crank_post(j_decompress_ptr cinfo, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
{
(*cinfo->post->_post_process_data) (cinfo, (_JSAMPIMAGE)NULL,
(JDIMENSION *)NULL, (JDIMENSION)0,
output_buf, out_row_ctr, out_rows_avail);
(*cinfo->post->post_process_data) (cinfo, (JSAMPIMAGE)NULL,
(JDIMENSION *)NULL, (JDIMENSION)0,
output_buf, out_row_ctr, out_rows_avail);
}
#endif /* QUANT_2PASS_SUPPORTED */
@@ -425,15 +422,12 @@ process_data_crank_post(j_decompress_ptr cinfo, _JSAMPARRAY output_buf,
*/
GLOBAL(void)
_jinit_d_main_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
jinit_d_main_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
{
my_main_ptr main_ptr;
int ci, rgroup, ngroups;
jpeg_component_info *compptr;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
main_ptr = (my_main_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_main_controller));
@@ -459,11 +453,9 @@ _jinit_d_main_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
ci++, compptr++) {
rgroup = (compptr->v_samp_factor * compptr->_DCT_scaled_size) /
cinfo->_min_DCT_scaled_size; /* height of a row group of component */
main_ptr->buffer[ci] = (_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
main_ptr->buffer[ci] = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
compptr->width_in_blocks * compptr->_DCT_scaled_size,
(JDIMENSION)(rgroup * ngroups));
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED) */

View File

@@ -3,27 +3,22 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*/
#define JPEG_INTERNALS
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jsamplecomp.h"
#include "jpegcomp.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
/* Private buffer controller object */
typedef struct {
struct jpeg_d_main_controller pub; /* public fields */
/* Pointer to allocated workspace (M or M+2 row groups). */
_JSAMPARRAY buffer[MAX_COMPONENTS];
JSAMPARRAY buffer[MAX_COMPONENTS];
boolean buffer_full; /* Have we gotten an iMCU row from decoder? */
JDIMENSION rowgroup_ctr; /* counts row groups output to postprocessor */
@@ -31,7 +26,7 @@ typedef struct {
/* Remaining fields are only used in the context case. */
/* These are the master pointers to the funny-order pointer lists. */
_JSAMPIMAGE xbuffer[2]; /* pointers to weird pointer lists */
JSAMPIMAGE xbuffer[2]; /* pointers to weird pointer lists */
int whichptr; /* indicates which pointer set is now in use */
int context_state; /* process_data state machine status */
@@ -58,7 +53,7 @@ set_wraparound_pointers(j_decompress_ptr cinfo)
int ci, i, rgroup;
int M = cinfo->_min_DCT_scaled_size;
jpeg_component_info *compptr;
_JSAMPARRAY xbuf0, xbuf1;
JSAMPARRAY xbuf0, xbuf1;
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
@@ -74,5 +69,3 @@ set_wraparound_pointers(j_decompress_ptr cinfo)
}
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED) */

View File

@@ -3,8 +3,6 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1998, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2012, 2015, 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
@@ -239,8 +237,7 @@ get_soi(j_decompress_ptr cinfo)
LOCAL(boolean)
get_sof(j_decompress_ptr cinfo, boolean is_prog, boolean is_lossless,
boolean is_arith)
get_sof(j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
/* Process a SOFn marker */
{
JLONG length;
@@ -249,7 +246,6 @@ get_sof(j_decompress_ptr cinfo, boolean is_prog, boolean is_lossless,
INPUT_VARS(cinfo);
cinfo->progressive_mode = is_prog;
cinfo->master->lossless = is_lossless;
cinfo->arith_code = is_arith;
INPUT_2BYTES(cinfo, length, return FALSE);
@@ -994,40 +990,32 @@ read_markers(j_decompress_ptr cinfo)
case M_SOF0: /* Baseline */
case M_SOF1: /* Extended sequential, Huffman */
if (!get_sof(cinfo, FALSE, FALSE, FALSE))
if (!get_sof(cinfo, FALSE, FALSE))
return JPEG_SUSPENDED;
break;
case M_SOF2: /* Progressive, Huffman */
if (!get_sof(cinfo, TRUE, FALSE, FALSE))
return JPEG_SUSPENDED;
break;
case M_SOF3: /* Lossless, Huffman */
if (!get_sof(cinfo, FALSE, TRUE, FALSE))
if (!get_sof(cinfo, TRUE, FALSE))
return JPEG_SUSPENDED;
break;
case M_SOF9: /* Extended sequential, arithmetic */
if (!get_sof(cinfo, FALSE, FALSE, TRUE))
if (!get_sof(cinfo, FALSE, TRUE))
return JPEG_SUSPENDED;
break;
case M_SOF10: /* Progressive, arithmetic */
if (!get_sof(cinfo, TRUE, FALSE, TRUE))
return JPEG_SUSPENDED;
break;
case M_SOF11: /* Lossless, arithmetic */
if (!get_sof(cinfo, FALSE, TRUE, TRUE))
if (!get_sof(cinfo, TRUE, TRUE))
return JPEG_SUSPENDED;
break;
/* Currently unsupported SOFn types */
case M_SOF3: /* Lossless, Huffman */
case M_SOF5: /* Differential sequential, Huffman */
case M_SOF6: /* Differential progressive, Huffman */
case M_SOF7: /* Differential lossless, Huffman */
case M_JPG: /* Reserved for JPEG extensions */
case M_SOF11: /* Lossless, arithmetic */
case M_SOF13: /* Differential sequential, arithmetic */
case M_SOF14: /* Differential progressive, arithmetic */
case M_SOF15: /* Differential lossless, arithmetic */

View File

@@ -4,10 +4,8 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modified 2002-2009 by Guido Vollbeding.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2009-2011, 2016, 2019, 2022-2023, D. R. Commander.
* Copyright (C) 2009-2011, 2016, 2019, 2022, D. R. Commander.
* Copyright (C) 2013, Linaro Limited.
* Copyright (C) 2015, Google, Inc.
* For conditions of distribution and use, see the accompanying README.ijg
@@ -22,7 +20,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
#include "jdmaster.h"
@@ -35,9 +33,6 @@ LOCAL(boolean)
use_merged_upsample(j_decompress_ptr cinfo)
{
#ifdef UPSAMPLE_MERGING_SUPPORTED
/* Colorspace conversion is not supported with lossless JPEG images */
if (cinfo->master->lossless)
return FALSE;
/* Merging is the equivalent of plain box-filter upsampling */
if (cinfo->do_fancy_upsampling || cinfo->CCIR601_sampling)
return FALSE;
@@ -102,154 +97,154 @@ jpeg_core_output_dimensions(j_decompress_ptr cinfo)
int ci;
jpeg_component_info *compptr;
if (!cinfo->master->lossless) {
/* Compute actual output image dimensions and DCT scaling choices. */
if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom) {
/* Provide 1/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 1;
cinfo->_min_DCT_v_scaled_size = 1;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 2) {
/* Provide 2/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 2L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 2L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 2;
cinfo->_min_DCT_v_scaled_size = 2;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 3) {
/* Provide 3/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 3L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 3L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 3;
cinfo->_min_DCT_v_scaled_size = 3;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 4) {
/* Provide 4/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 4L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 4L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 4;
cinfo->_min_DCT_v_scaled_size = 4;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 5) {
/* Provide 5/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 5L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 5L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 5;
cinfo->_min_DCT_v_scaled_size = 5;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 6) {
/* Provide 6/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 6L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 6L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 6;
cinfo->_min_DCT_v_scaled_size = 6;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 7) {
/* Provide 7/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 7L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 7L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 7;
cinfo->_min_DCT_v_scaled_size = 7;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 8) {
/* Provide 8/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 8L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 8L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 8;
cinfo->_min_DCT_v_scaled_size = 8;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 9) {
/* Provide 9/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 9L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 9L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 9;
cinfo->_min_DCT_v_scaled_size = 9;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 10) {
/* Provide 10/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 10L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 10L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 10;
cinfo->_min_DCT_v_scaled_size = 10;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 11) {
/* Provide 11/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 11L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 11L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 11;
cinfo->_min_DCT_v_scaled_size = 11;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 12) {
/* Provide 12/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 12L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 12L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 12;
cinfo->_min_DCT_v_scaled_size = 12;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 13) {
/* Provide 13/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 13L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 13L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 13;
cinfo->_min_DCT_v_scaled_size = 13;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 14) {
/* Provide 14/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 14L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 14L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 14;
cinfo->_min_DCT_v_scaled_size = 14;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 15) {
/* Provide 15/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 15L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 15L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 15;
cinfo->_min_DCT_v_scaled_size = 15;
} else {
/* Provide 16/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 16L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 16L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 16;
cinfo->_min_DCT_v_scaled_size = 16;
}
/* Recompute dimensions of components */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
compptr->_DCT_h_scaled_size = cinfo->_min_DCT_h_scaled_size;
compptr->_DCT_v_scaled_size = cinfo->_min_DCT_v_scaled_size;
}
} else
#endif /* !IDCT_SCALING_SUPPORTED */
{
/* Hardwire it to "no scaling" */
cinfo->output_width = cinfo->image_width;
cinfo->output_height = cinfo->image_height;
/* jdinput.c has already initialized DCT_scaled_size,
* and has computed unscaled downsampled_width and downsampled_height.
*/
/* Compute actual output image dimensions and DCT scaling choices. */
if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom) {
/* Provide 1/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 1;
cinfo->_min_DCT_v_scaled_size = 1;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 2) {
/* Provide 2/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 2L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 2L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 2;
cinfo->_min_DCT_v_scaled_size = 2;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 3) {
/* Provide 3/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 3L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 3L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 3;
cinfo->_min_DCT_v_scaled_size = 3;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 4) {
/* Provide 4/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 4L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 4L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 4;
cinfo->_min_DCT_v_scaled_size = 4;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 5) {
/* Provide 5/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 5L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 5L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 5;
cinfo->_min_DCT_v_scaled_size = 5;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 6) {
/* Provide 6/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 6L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 6L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 6;
cinfo->_min_DCT_v_scaled_size = 6;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 7) {
/* Provide 7/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 7L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 7L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 7;
cinfo->_min_DCT_v_scaled_size = 7;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 8) {
/* Provide 8/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 8L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 8L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 8;
cinfo->_min_DCT_v_scaled_size = 8;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 9) {
/* Provide 9/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 9L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 9L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 9;
cinfo->_min_DCT_v_scaled_size = 9;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 10) {
/* Provide 10/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 10L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 10L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 10;
cinfo->_min_DCT_v_scaled_size = 10;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 11) {
/* Provide 11/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 11L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 11L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 11;
cinfo->_min_DCT_v_scaled_size = 11;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 12) {
/* Provide 12/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 12L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 12L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 12;
cinfo->_min_DCT_v_scaled_size = 12;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 13) {
/* Provide 13/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 13L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 13L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 13;
cinfo->_min_DCT_v_scaled_size = 13;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 14) {
/* Provide 14/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 14L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 14L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 14;
cinfo->_min_DCT_v_scaled_size = 14;
} else if (cinfo->scale_num * DCTSIZE <= cinfo->scale_denom * 15) {
/* Provide 15/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 15L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 15L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 15;
cinfo->_min_DCT_v_scaled_size = 15;
} else {
/* Provide 16/block_size scaling */
cinfo->output_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width * 16L, (long)DCTSIZE);
cinfo->output_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height * 16L, (long)DCTSIZE);
cinfo->_min_DCT_h_scaled_size = 16;
cinfo->_min_DCT_v_scaled_size = 16;
}
/* Recompute dimensions of components */
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
compptr->_DCT_h_scaled_size = cinfo->_min_DCT_h_scaled_size;
compptr->_DCT_v_scaled_size = cinfo->_min_DCT_v_scaled_size;
}
#else /* !IDCT_SCALING_SUPPORTED */
/* Hardwire it to "no scaling" */
cinfo->output_width = cinfo->image_width;
cinfo->output_height = cinfo->image_height;
/* jdinput.c has already initialized DCT_scaled_size,
* and has computed unscaled downsampled_width and downsampled_height.
*/
#endif /* IDCT_SCALING_SUPPORTED */
}
@@ -278,57 +273,55 @@ jpeg_calc_output_dimensions(j_decompress_ptr cinfo)
#ifdef IDCT_SCALING_SUPPORTED
if (!cinfo->master->lossless) {
/* In selecting the actual DCT scaling for each component, we try to
* scale up the chroma components via IDCT scaling rather than upsampling.
* This saves time if the upsampler gets to use 1:1 scaling.
* Note this code adapts subsampling ratios which are powers of 2.
*/
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
int ssize = cinfo->_min_DCT_scaled_size;
while (ssize < DCTSIZE &&
((cinfo->max_h_samp_factor * cinfo->_min_DCT_scaled_size) %
(compptr->h_samp_factor * ssize * 2) == 0) &&
((cinfo->max_v_samp_factor * cinfo->_min_DCT_scaled_size) %
(compptr->v_samp_factor * ssize * 2) == 0)) {
ssize = ssize * 2;
}
/* In selecting the actual DCT scaling for each component, we try to
* scale up the chroma components via IDCT scaling rather than upsampling.
* This saves time if the upsampler gets to use 1:1 scaling.
* Note this code adapts subsampling ratios which are powers of 2.
*/
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
int ssize = cinfo->_min_DCT_scaled_size;
while (ssize < DCTSIZE &&
((cinfo->max_h_samp_factor * cinfo->_min_DCT_scaled_size) %
(compptr->h_samp_factor * ssize * 2) == 0) &&
((cinfo->max_v_samp_factor * cinfo->_min_DCT_scaled_size) %
(compptr->v_samp_factor * ssize * 2) == 0)) {
ssize = ssize * 2;
}
#if JPEG_LIB_VERSION >= 70
compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = ssize;
compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = ssize;
#else
compptr->DCT_scaled_size = ssize;
compptr->DCT_scaled_size = ssize;
#endif
}
/* Recompute downsampled dimensions of components;
* application needs to know these if using raw downsampled data.
*/
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
/* Size in samples, after IDCT scaling */
compptr->downsampled_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width *
(long)(compptr->h_samp_factor *
compptr->_DCT_scaled_size),
(long)(cinfo->max_h_samp_factor * DCTSIZE));
compptr->downsampled_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height *
(long)(compptr->v_samp_factor *
compptr->_DCT_scaled_size),
(long)(cinfo->max_v_samp_factor * DCTSIZE));
}
} else
#endif /* IDCT_SCALING_SUPPORTED */
{
/* Hardwire it to "no scaling" */
cinfo->output_width = cinfo->image_width;
cinfo->output_height = cinfo->image_height;
/* jdinput.c has already initialized DCT_scaled_size to DCTSIZE,
* and has computed unscaled downsampled_width and downsampled_height.
*/
}
/* Recompute downsampled dimensions of components;
* application needs to know these if using raw downsampled data.
*/
for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
ci++, compptr++) {
/* Size in samples, after IDCT scaling */
compptr->downsampled_width = (JDIMENSION)
jdiv_round_up((long)cinfo->image_width *
(long)(compptr->h_samp_factor * compptr->_DCT_scaled_size),
(long)(cinfo->max_h_samp_factor * DCTSIZE));
compptr->downsampled_height = (JDIMENSION)
jdiv_round_up((long)cinfo->image_height *
(long)(compptr->v_samp_factor * compptr->_DCT_scaled_size),
(long)(cinfo->max_v_samp_factor * DCTSIZE));
}
#else /* !IDCT_SCALING_SUPPORTED */
/* Hardwire it to "no scaling" */
cinfo->output_width = cinfo->image_width;
cinfo->output_height = cinfo->image_height;
/* jdinput.c has already initialized DCT_scaled_size to DCTSIZE,
* and has computed unscaled downsampled_width and downsampled_height.
*/
#endif /* IDCT_SCALING_SUPPORTED */
/* Report number of components in selected colorspace. */
/* Probably this should be in the color conversion module... */
switch (cinfo->out_color_space) {
@@ -416,83 +409,27 @@ prepare_range_limit_table(j_decompress_ptr cinfo)
/* Allocate and fill in the sample_range_limit table */
{
JSAMPLE *table;
J12SAMPLE *table12;
#ifdef D_LOSSLESS_SUPPORTED
J16SAMPLE *table16;
#endif
int i;
if (cinfo->data_precision == 16) {
#ifdef D_LOSSLESS_SUPPORTED
table16 = (J16SAMPLE *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(5 * (MAXJ16SAMPLE + 1) + CENTERJ16SAMPLE) *
sizeof(J16SAMPLE));
table16 += (MAXJ16SAMPLE + 1); /* allow negative subscripts of simple
table */
cinfo->sample_range_limit = (JSAMPLE *)table16;
/* First segment of "simple" table: limit[x] = 0 for x < 0 */
memset(table16 - (MAXJ16SAMPLE + 1), 0,
(MAXJ16SAMPLE + 1) * sizeof(J16SAMPLE));
/* Main part of "simple" table: limit[x] = x */
for (i = 0; i <= MAXJ16SAMPLE; i++)
table16[i] = (J16SAMPLE)i;
table16 += CENTERJ16SAMPLE; /* Point to where post-IDCT table starts */
/* End of simple table, rest of first half of post-IDCT table */
for (i = CENTERJ16SAMPLE; i < 2 * (MAXJ16SAMPLE + 1); i++)
table16[i] = MAXJ16SAMPLE;
/* Second half of post-IDCT table */
memset(table16 + (2 * (MAXJ16SAMPLE + 1)), 0,
(2 * (MAXJ16SAMPLE + 1) - CENTERJ16SAMPLE) * sizeof(J16SAMPLE));
memcpy(table16 + (4 * (MAXJ16SAMPLE + 1) - CENTERJ16SAMPLE),
cinfo->sample_range_limit, CENTERJ16SAMPLE * sizeof(J16SAMPLE));
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
} else if (cinfo->data_precision == 12) {
table12 = (J12SAMPLE *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(5 * (MAXJ12SAMPLE + 1) + CENTERJ12SAMPLE) *
sizeof(J12SAMPLE));
table12 += (MAXJ12SAMPLE + 1); /* allow negative subscripts of simple
table */
cinfo->sample_range_limit = (JSAMPLE *)table12;
/* First segment of "simple" table: limit[x] = 0 for x < 0 */
memset(table12 - (MAXJ12SAMPLE + 1), 0,
(MAXJ12SAMPLE + 1) * sizeof(J12SAMPLE));
/* Main part of "simple" table: limit[x] = x */
for (i = 0; i <= MAXJ12SAMPLE; i++)
table12[i] = (J12SAMPLE)i;
table12 += CENTERJ12SAMPLE; /* Point to where post-IDCT table starts */
/* End of simple table, rest of first half of post-IDCT table */
for (i = CENTERJ12SAMPLE; i < 2 * (MAXJ12SAMPLE + 1); i++)
table12[i] = MAXJ12SAMPLE;
/* Second half of post-IDCT table */
memset(table12 + (2 * (MAXJ12SAMPLE + 1)), 0,
(2 * (MAXJ12SAMPLE + 1) - CENTERJ12SAMPLE) * sizeof(J12SAMPLE));
memcpy(table12 + (4 * (MAXJ12SAMPLE + 1) - CENTERJ12SAMPLE),
cinfo->sample_range_limit, CENTERJ12SAMPLE * sizeof(J12SAMPLE));
} else {
table = (JSAMPLE *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(5 * (MAXJSAMPLE + 1) + CENTERJSAMPLE) * sizeof(JSAMPLE));
table += (MAXJSAMPLE + 1); /* allow negative subscripts of simple table */
cinfo->sample_range_limit = table;
/* First segment of "simple" table: limit[x] = 0 for x < 0 */
memset(table - (MAXJSAMPLE + 1), 0, (MAXJSAMPLE + 1) * sizeof(JSAMPLE));
/* Main part of "simple" table: limit[x] = x */
for (i = 0; i <= MAXJSAMPLE; i++)
table[i] = (JSAMPLE)i;
table += CENTERJSAMPLE; /* Point to where post-IDCT table starts */
/* End of simple table, rest of first half of post-IDCT table */
for (i = CENTERJSAMPLE; i < 2 * (MAXJSAMPLE + 1); i++)
table[i] = MAXJSAMPLE;
/* Second half of post-IDCT table */
memset(table + (2 * (MAXJSAMPLE + 1)), 0,
(2 * (MAXJSAMPLE + 1) - CENTERJSAMPLE) * sizeof(JSAMPLE));
memcpy(table + (4 * (MAXJSAMPLE + 1) - CENTERJSAMPLE),
cinfo->sample_range_limit, CENTERJSAMPLE * sizeof(JSAMPLE));
}
table = (JSAMPLE *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(5 * (MAXJSAMPLE + 1) + CENTERJSAMPLE) * sizeof(JSAMPLE));
table += (MAXJSAMPLE + 1); /* allow negative subscripts of simple table */
cinfo->sample_range_limit = table;
/* First segment of "simple" table: limit[x] = 0 for x < 0 */
memset(table - (MAXJSAMPLE + 1), 0, (MAXJSAMPLE + 1) * sizeof(JSAMPLE));
/* Main part of "simple" table: limit[x] = x */
for (i = 0; i <= MAXJSAMPLE; i++)
table[i] = (JSAMPLE)i;
table += CENTERJSAMPLE; /* Point to where post-IDCT table starts */
/* End of simple table, rest of first half of post-IDCT table */
for (i = CENTERJSAMPLE; i < 2 * (MAXJSAMPLE + 1); i++)
table[i] = MAXJSAMPLE;
/* Second half of post-IDCT table */
memset(table + (2 * (MAXJSAMPLE + 1)), 0,
(2 * (MAXJSAMPLE + 1) - CENTERJSAMPLE) * sizeof(JSAMPLE));
memcpy(table + (4 * (MAXJSAMPLE + 1) - CENTERJSAMPLE),
cinfo->sample_range_limit, CENTERJSAMPLE * sizeof(JSAMPLE));
}
@@ -515,17 +452,6 @@ master_selection(j_decompress_ptr cinfo)
long samplesperrow;
JDIMENSION jd_samplesperrow;
/* Disable IDCT scaling and raw (downsampled) data output in lossless mode.
* IDCT scaling is not useful in lossless mode, and it must be disabled in
* order to properly calculate the output dimensions. Raw data output isn't
* particularly useful without subsampling and has not been tested in
* lossless mode.
*/
if (cinfo->master->lossless) {
cinfo->raw_data_out = FALSE;
cinfo->scale_num = cinfo->scale_denom = 1;
}
/* Initialize dimensions and other stuff */
jpeg_calc_output_dimensions(cinfo);
prepare_range_limit_table(cinfo);
@@ -554,8 +480,7 @@ master_selection(j_decompress_ptr cinfo)
if (cinfo->raw_data_out)
ERREXIT(cinfo, JERR_NOTIMPL);
/* 2-pass quantizer only works in 3-component color space. */
if (cinfo->out_color_components != 3 ||
cinfo->out_color_space == JCS_RGB565) {
if (cinfo->out_color_components != 3) {
cinfo->enable_1pass_quant = TRUE;
cinfo->enable_external_quant = FALSE;
cinfo->enable_2pass_quant = FALSE;
@@ -570,12 +495,7 @@ master_selection(j_decompress_ptr cinfo)
if (cinfo->enable_1pass_quant) {
#ifdef QUANT_1PASS_SUPPORTED
if (cinfo->data_precision == 16)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
else if (cinfo->data_precision == 12)
j12init_1pass_quantizer(cinfo);
else
jinit_1pass_quantizer(cinfo);
jinit_1pass_quantizer(cinfo);
master->quantizer_1pass = cinfo->cquantize;
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
@@ -585,12 +505,7 @@ master_selection(j_decompress_ptr cinfo)
/* We use the 2-pass code to map to external colormaps. */
if (cinfo->enable_2pass_quant || cinfo->enable_external_quant) {
#ifdef QUANT_2PASS_SUPPORTED
if (cinfo->data_precision == 16)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
else if (cinfo->data_precision == 12)
j12init_2pass_quantizer(cinfo);
else
jinit_2pass_quantizer(cinfo);
jinit_2pass_quantizer(cinfo);
master->quantizer_2pass = cinfo->cquantize;
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
@@ -605,122 +520,42 @@ master_selection(j_decompress_ptr cinfo)
if (!cinfo->raw_data_out) {
if (master->using_merged_upsample) {
#ifdef UPSAMPLE_MERGING_SUPPORTED
if (cinfo->data_precision == 16)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
else if (cinfo->data_precision == 12)
j12init_merged_upsampler(cinfo); /* does color conversion too */
else
jinit_merged_upsampler(cinfo); /* does color conversion too */
jinit_merged_upsampler(cinfo); /* does color conversion too */
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else {
if (cinfo->data_precision == 16) {
#ifdef D_LOSSLESS_SUPPORTED
j16init_color_deconverter(cinfo);
j16init_upsampler(cinfo);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
} else if (cinfo->data_precision == 12) {
j12init_color_deconverter(cinfo);
j12init_upsampler(cinfo);
} else {
jinit_color_deconverter(cinfo);
jinit_upsampler(cinfo);
}
jinit_color_deconverter(cinfo);
jinit_upsampler(cinfo);
}
if (cinfo->data_precision == 16)
#ifdef D_LOSSLESS_SUPPORTED
j16init_d_post_controller(cinfo, cinfo->enable_2pass_quant);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
else if (cinfo->data_precision == 12)
j12init_d_post_controller(cinfo, cinfo->enable_2pass_quant);
else
jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant);
jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant);
}
if (cinfo->master->lossless) {
#ifdef D_LOSSLESS_SUPPORTED
/* Prediction, sample undifferencing, point transform, and sample size
* scaling
*/
if (cinfo->data_precision == 16)
j16init_lossless_decompressor(cinfo);
else if (cinfo->data_precision == 12)
j12init_lossless_decompressor(cinfo);
else
jinit_lossless_decompressor(cinfo);
/* Entropy decoding: either Huffman or arithmetic coding. */
if (cinfo->arith_code) {
ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
} else {
jinit_lhuff_decoder(cinfo);
}
/* Initialize principal buffer controllers. */
use_c_buffer = cinfo->inputctl->has_multiple_scans ||
cinfo->buffered_image;
if (cinfo->data_precision == 16)
j16init_d_diff_controller(cinfo, use_c_buffer);
else if (cinfo->data_precision == 12)
j12init_d_diff_controller(cinfo, use_c_buffer);
else
jinit_d_diff_controller(cinfo, use_c_buffer);
/* Inverse DCT */
jinit_inverse_dct(cinfo);
/* Entropy decoding: either Huffman or arithmetic coding. */
if (cinfo->arith_code) {
#ifdef D_ARITH_CODING_SUPPORTED
jinit_arith_decoder(cinfo);
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
#endif
} else {
if (cinfo->data_precision == 16)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
/* Inverse DCT */
if (cinfo->data_precision == 12)
j12init_inverse_dct(cinfo);
else
jinit_inverse_dct(cinfo);
/* Entropy decoding: either Huffman or arithmetic coding. */
if (cinfo->arith_code) {
#ifdef D_ARITH_CODING_SUPPORTED
jinit_arith_decoder(cinfo);
#else
ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
#endif
} else {
if (cinfo->progressive_mode) {
if (cinfo->progressive_mode) {
#ifdef D_PROGRESSIVE_SUPPORTED
jinit_phuff_decoder(cinfo);
jinit_phuff_decoder(cinfo);
#else
ERREXIT(cinfo, JERR_NOT_COMPILED);
ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
} else
jinit_huff_decoder(cinfo);
}
/* Initialize principal buffer controllers. */
use_c_buffer = cinfo->inputctl->has_multiple_scans ||
cinfo->buffered_image;
if (cinfo->data_precision == 12)
j12init_d_coef_controller(cinfo, use_c_buffer);
else
jinit_d_coef_controller(cinfo, use_c_buffer);
} else
jinit_huff_decoder(cinfo);
}
if (!cinfo->raw_data_out) {
if (cinfo->data_precision == 16)
#ifdef D_LOSSLESS_SUPPORTED
j16init_d_main_controller(cinfo,
FALSE /* never need full buffer here */);
#else
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
#endif
else if (cinfo->data_precision == 12)
j12init_d_main_controller(cinfo,
FALSE /* never need full buffer here */);
else
jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */);
}
/* Initialize principal buffer controllers. */
use_c_buffer = cinfo->inputctl->has_multiple_scans || cinfo->buffered_image;
jinit_d_coef_controller(cinfo, use_c_buffer);
if (!cinfo->raw_data_out)
jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */);
/* We can now tell the memory manager to allocate virtual arrays. */
(*cinfo->mem->realize_virt_arrays) ((j_common_ptr)cinfo);

View File

@@ -5,7 +5,7 @@
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2009, 2011, 2014-2015, 2020, 2022, D. R. Commander.
* Copyright (C) 2009, 2011, 2014-2015, 2020, D. R. Commander.
* Copyright (C) 2013, Linaro Limited.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
@@ -42,6 +42,7 @@
#include "jpeglib.h"
#include "jdmerge.h"
#include "jsimd.h"
#include "jconfigint.h"
#ifdef UPSAMPLE_MERGING_SUPPORTED
@@ -167,20 +168,20 @@ build_ycc_rgb_table(j_decompress_ptr cinfo)
upsample->Cr_r_tab = (int *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(int));
(MAXJSAMPLE + 1) * sizeof(int));
upsample->Cb_b_tab = (int *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(int));
(MAXJSAMPLE + 1) * sizeof(int));
upsample->Cr_g_tab = (JLONG *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(JLONG));
(MAXJSAMPLE + 1) * sizeof(JLONG));
upsample->Cb_g_tab = (JLONG *)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(_MAXJSAMPLE + 1) * sizeof(JLONG));
(MAXJSAMPLE + 1) * sizeof(JLONG));
for (i = 0, x = -_CENTERJSAMPLE; i <= _MAXJSAMPLE; i++, x++) {
/* i is the actual input pixel value, in the range 0.._MAXJSAMPLE */
/* The Cb or Cr value we are thinking of is x = i - _CENTERJSAMPLE */
for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
/* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
/* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
/* Cr=>R value is nearest int to 1.40200 * x */
upsample->Cr_r_tab[i] = (int)
RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
@@ -219,14 +220,14 @@ start_pass_merged_upsample(j_decompress_ptr cinfo)
*/
METHODDEF(void)
merged_2v_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
merged_2v_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail, _JSAMPARRAY output_buf,
JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
/* 2:1 vertical sampling case: may need a spare row. */
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
_JSAMPROW work_ptrs[2];
JSAMPROW work_ptrs[2];
JDIMENSION num_rows; /* number of rows returned to caller */
if (upsample->spare_full) {
@@ -234,8 +235,8 @@ merged_2v_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION size = upsample->out_row_width;
if (cinfo->out_color_space == JCS_RGB565)
size = cinfo->output_width * 2;
_jcopy_sample_rows(&upsample->spare_row, 0, output_buf + *out_row_ctr, 0,
1, size);
jcopy_sample_rows(&upsample->spare_row, 0, output_buf + *out_row_ctr, 0, 1,
size);
num_rows = 1;
upsample->spare_full = FALSE;
} else {
@@ -270,9 +271,9 @@ merged_2v_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
merged_1v_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
merged_1v_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail, _JSAMPARRAY output_buf,
JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
/* 1:1 vertical sampling case: much easier, never need a spare row. */
{
@@ -302,8 +303,8 @@ merged_1v_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
h2v1_merged_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)
h2v1_merged_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
{
switch (cinfo->out_color_space) {
case JCS_EXT_RGB:
@@ -347,8 +348,8 @@ h2v1_merged_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
h2v2_merged_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)
h2v2_merged_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
{
switch (cinfo->out_color_space) {
case JCS_EXT_RGB:
@@ -474,8 +475,8 @@ static INLINE boolean is_big_endian(void)
METHODDEF(void)
h2v1_merged_upsample_565(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)
h2v1_merged_upsample_565(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
{
if (is_big_endian())
h2v1_merged_upsample_565_be(cinfo, input_buf, in_row_group_ctr,
@@ -487,8 +488,8 @@ h2v1_merged_upsample_565(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
h2v1_merged_upsample_565D(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)
h2v1_merged_upsample_565D(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
{
if (is_big_endian())
h2v1_merged_upsample_565D_be(cinfo, input_buf, in_row_group_ctr,
@@ -500,8 +501,8 @@ h2v1_merged_upsample_565D(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
h2v2_merged_upsample_565(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)
h2v2_merged_upsample_565(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
{
if (is_big_endian())
h2v2_merged_upsample_565_be(cinfo, input_buf, in_row_group_ctr,
@@ -513,8 +514,8 @@ h2v2_merged_upsample_565(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
h2v2_merged_upsample_565D(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)
h2v2_merged_upsample_565D(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
{
if (is_big_endian())
h2v2_merged_upsample_565D_be(cinfo, input_buf, in_row_group_ctr,
@@ -534,13 +535,10 @@ h2v2_merged_upsample_565D(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
GLOBAL(void)
_jinit_merged_upsampler(j_decompress_ptr cinfo)
jinit_merged_upsampler(j_decompress_ptr cinfo)
{
my_merged_upsample_ptr upsample;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
upsample = (my_merged_upsample_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_merged_upsampler));
@@ -551,12 +549,10 @@ _jinit_merged_upsampler(j_decompress_ptr cinfo)
upsample->out_row_width = cinfo->output_width * cinfo->out_color_components;
if (cinfo->max_v_samp_factor == 2) {
upsample->pub._upsample = merged_2v_upsample;
#ifdef WITH_SIMD
upsample->pub.upsample = merged_2v_upsample;
if (jsimd_can_h2v2_merged_upsample())
upsample->upmethod = jsimd_h2v2_merged_upsample;
else
#endif
upsample->upmethod = h2v2_merged_upsample;
if (cinfo->out_color_space == JCS_RGB565) {
if (cinfo->dither_mode != JDITHER_NONE) {
@@ -566,16 +562,14 @@ _jinit_merged_upsampler(j_decompress_ptr cinfo)
}
}
/* Allocate a spare row buffer */
upsample->spare_row = (_JSAMPROW)
upsample->spare_row = (JSAMPROW)
(*cinfo->mem->alloc_large) ((j_common_ptr)cinfo, JPOOL_IMAGE,
(size_t)(upsample->out_row_width * sizeof(_JSAMPLE)));
(size_t)(upsample->out_row_width * sizeof(JSAMPLE)));
} else {
upsample->pub._upsample = merged_1v_upsample;
#ifdef WITH_SIMD
upsample->pub.upsample = merged_1v_upsample;
if (jsimd_can_h2v1_merged_upsample())
upsample->upmethod = jsimd_h2v1_merged_upsample;
else
#endif
upsample->upmethod = h2v1_merged_upsample;
if (cinfo->out_color_space == JCS_RGB565) {
if (cinfo->dither_mode != JDITHER_NONE) {

View File

@@ -4,14 +4,13 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, 2022, D. R. Commander.
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*/
#define JPEG_INTERNALS
#include "jpeglib.h"
#include "jsamplecomp.h"
#ifdef UPSAMPLE_MERGING_SUPPORTED
@@ -22,8 +21,8 @@ typedef struct {
struct jpeg_upsampler pub; /* public fields */
/* Pointer to routine to do actual upsampling/conversion of one row group */
void (*upmethod) (j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf);
void (*upmethod) (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
/* Private state for YCC->RGB conversion */
int *Cr_r_tab; /* => table for Cr to R conversion */
@@ -36,7 +35,7 @@ typedef struct {
* application provides just a one-row buffer; we also use the spare
* to discard the dummy last row if the image height is odd.
*/
_JSAMPROW spare_row;
JSAMPROW spare_row;
boolean spare_full; /* T if spare buffer is occupied */
JDIMENSION out_row_width; /* samples per output row */

View File

@@ -5,7 +5,7 @@
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2013, Linaro Limited.
* Copyright (C) 2014-2015, 2018, 2020, 2022, D. R. Commander.
* Copyright (C) 2014-2015, 2018, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -15,19 +15,18 @@
INLINE
LOCAL(void)
h2v1_merged_upsample_565_internal(j_decompress_ptr cinfo,
_JSAMPIMAGE input_buf,
h2v1_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
_JSAMPARRAY output_buf)
JSAMPARRAY output_buf)
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register _JSAMPROW outptr;
_JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
JSAMPROW inptr0, inptr1, inptr2;
JDIMENSION col;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
int *Crrtab = upsample->Cr_r_tab;
int *Cbbtab = upsample->Cb_b_tab;
JLONG *Crgtab = upsample->Cr_g_tab;
@@ -87,18 +86,18 @@ h2v1_merged_upsample_565_internal(j_decompress_ptr cinfo,
INLINE
LOCAL(void)
h2v1_merged_upsample_565D_internal(j_decompress_ptr cinfo,
_JSAMPIMAGE input_buf,
JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
_JSAMPARRAY output_buf)
JSAMPARRAY output_buf)
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register _JSAMPROW outptr;
_JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
JSAMPROW inptr0, inptr1, inptr2;
JDIMENSION col;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
int *Crrtab = upsample->Cr_r_tab;
int *Cbbtab = upsample->Cb_b_tab;
JLONG *Crgtab = upsample->Cr_g_tab;
@@ -160,18 +159,18 @@ h2v1_merged_upsample_565D_internal(j_decompress_ptr cinfo,
INLINE
LOCAL(void)
h2v2_merged_upsample_565_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
h2v2_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
_JSAMPARRAY output_buf)
JSAMPARRAY output_buf)
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register _JSAMPROW outptr0, outptr1;
_JSAMPROW inptr00, inptr01, inptr1, inptr2;
register JSAMPROW outptr0, outptr1;
JSAMPROW inptr00, inptr01, inptr1, inptr2;
JDIMENSION col;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
int *Crrtab = upsample->Cr_r_tab;
int *Cbbtab = upsample->Cb_b_tab;
JLONG *Crgtab = upsample->Cr_g_tab;
@@ -256,18 +255,18 @@ h2v2_merged_upsample_565_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
h2v2_merged_upsample_565D_internal(j_decompress_ptr cinfo,
_JSAMPIMAGE input_buf,
JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
_JSAMPARRAY output_buf)
JSAMPARRAY output_buf)
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register _JSAMPROW outptr0, outptr1;
_JSAMPROW inptr00, inptr01, inptr1, inptr2;
register JSAMPROW outptr0, outptr1;
JSAMPROW inptr00, inptr01, inptr1, inptr2;
JDIMENSION col;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
int *Crrtab = upsample->Cr_r_tab;
int *Cbbtab = upsample->Cb_b_tab;
JLONG *Crgtab = upsample->Cr_g_tab;

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2011, 2015, 2020, 2022-2023, D. R. Commander.
* Copyright (C) 2011, 2015, 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -21,18 +21,18 @@
INLINE
LOCAL(void)
h2v1_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
h2v1_merged_upsample_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
_JSAMPARRAY output_buf)
JSAMPARRAY output_buf)
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register _JSAMPROW outptr;
_JSAMPROW inptr0, inptr1, inptr2;
register JSAMPROW outptr;
JSAMPROW inptr0, inptr1, inptr2;
JDIMENSION col;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
int *Crrtab = upsample->Cr_r_tab;
int *Cbbtab = upsample->Cb_b_tab;
JLONG *Crgtab = upsample->Cr_g_tab;
@@ -57,7 +57,7 @@ h2v1_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr[RGB_GREEN] = range_limit[y + cgreen];
outptr[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr[RGB_ALPHA] = _MAXJSAMPLE;
outptr[RGB_ALPHA] = 0xFF;
#endif
outptr += RGB_PIXELSIZE;
y = *inptr0++;
@@ -65,7 +65,7 @@ h2v1_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr[RGB_GREEN] = range_limit[y + cgreen];
outptr[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr[RGB_ALPHA] = _MAXJSAMPLE;
outptr[RGB_ALPHA] = 0xFF;
#endif
outptr += RGB_PIXELSIZE;
}
@@ -81,7 +81,7 @@ h2v1_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr[RGB_GREEN] = range_limit[y + cgreen];
outptr[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr[RGB_ALPHA] = _MAXJSAMPLE;
outptr[RGB_ALPHA] = 0xFF;
#endif
}
}
@@ -93,18 +93,18 @@ h2v1_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
INLINE
LOCAL(void)
h2v2_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
h2v2_merged_upsample_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
_JSAMPARRAY output_buf)
JSAMPARRAY output_buf)
{
my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;
register int y, cred, cgreen, cblue;
int cb, cr;
register _JSAMPROW outptr0, outptr1;
_JSAMPROW inptr00, inptr01, inptr1, inptr2;
register JSAMPROW outptr0, outptr1;
JSAMPROW inptr00, inptr01, inptr1, inptr2;
JDIMENSION col;
/* copy these pointers into registers if possible */
register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;
register JSAMPLE *range_limit = cinfo->sample_range_limit;
int *Crrtab = upsample->Cr_r_tab;
int *Cbbtab = upsample->Cb_b_tab;
JLONG *Crgtab = upsample->Cr_g_tab;
@@ -131,7 +131,7 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr0[RGB_GREEN] = range_limit[y + cgreen];
outptr0[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr0[RGB_ALPHA] = _MAXJSAMPLE;
outptr0[RGB_ALPHA] = 0xFF;
#endif
outptr0 += RGB_PIXELSIZE;
y = *inptr00++;
@@ -139,7 +139,7 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr0[RGB_GREEN] = range_limit[y + cgreen];
outptr0[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr0[RGB_ALPHA] = _MAXJSAMPLE;
outptr0[RGB_ALPHA] = 0xFF;
#endif
outptr0 += RGB_PIXELSIZE;
y = *inptr01++;
@@ -147,7 +147,7 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr1[RGB_GREEN] = range_limit[y + cgreen];
outptr1[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr1[RGB_ALPHA] = _MAXJSAMPLE;
outptr1[RGB_ALPHA] = 0xFF;
#endif
outptr1 += RGB_PIXELSIZE;
y = *inptr01++;
@@ -155,7 +155,7 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr1[RGB_GREEN] = range_limit[y + cgreen];
outptr1[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr1[RGB_ALPHA] = _MAXJSAMPLE;
outptr1[RGB_ALPHA] = 0xFF;
#endif
outptr1 += RGB_PIXELSIZE;
}
@@ -171,14 +171,14 @@ h2v2_merged_upsample_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
outptr0[RGB_GREEN] = range_limit[y + cgreen];
outptr0[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr0[RGB_ALPHA] = _MAXJSAMPLE;
outptr0[RGB_ALPHA] = 0xFF;
#endif
y = *inptr01;
outptr1[RGB_RED] = range_limit[y + cred];
outptr1[RGB_GREEN] = range_limit[y + cgreen];
outptr1[RGB_BLUE] = range_limit[y + cblue];
#ifdef RGB_ALPHA
outptr1[RGB_ALPHA] = _MAXJSAMPLE;
outptr1[RGB_ALPHA] = 0xFF;
#endif
}
}

View File

@@ -3,8 +3,6 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1995-1997, Thomas G. Lane.
* Lossless JPEG Modifications:
* Copyright (C) 1999, Ken Murchison.
* libjpeg-turbo Modifications:
* Copyright (C) 2015-2016, 2018-2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
@@ -25,7 +23,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jdhuff.h" /* Declarations shared with jd*huff.c */
#include "jdhuff.h" /* Declarations shared with jdhuff.c */
#include <limits.h>

View File

@@ -3,8 +3,8 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1994-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2022-2023, D. R. Commander.
* It was modified by The libjpeg-turbo Project to include only code relevant
* to libjpeg-turbo.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -22,11 +22,8 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsamplecomp.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
/* Private buffer controller object */
typedef struct {
@@ -38,7 +35,7 @@ typedef struct {
* for one-pass operation, a strip buffer is sufficient.
*/
jvirt_sarray_ptr whole_image; /* virtual array, or NULL if one-pass */
_JSAMPARRAY buffer; /* strip buffer, or current strip of virtual */
JSAMPARRAY buffer; /* strip buffer, or current strip of virtual */
JDIMENSION strip_height; /* buffer size in rows */
/* for two-pass mode only: */
JDIMENSION starting_row; /* row # of first row in current strip */
@@ -49,28 +46,26 @@ typedef my_post_controller *my_post_ptr;
/* Forward declarations */
#if BITS_IN_JSAMPLE != 16
METHODDEF(void) post_process_1pass(j_decompress_ptr cinfo,
_JSAMPIMAGE input_buf,
JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail,
_JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail);
#endif
#if defined(QUANT_2PASS_SUPPORTED) && BITS_IN_JSAMPLE != 16
#ifdef QUANT_2PASS_SUPPORTED
METHODDEF(void) post_process_prepass(j_decompress_ptr cinfo,
_JSAMPIMAGE input_buf,
JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail,
_JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail);
METHODDEF(void) post_process_2pass(j_decompress_ptr cinfo,
_JSAMPIMAGE input_buf,
JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail,
_JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail);
#endif
@@ -87,42 +82,39 @@ start_pass_dpost(j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
switch (pass_mode) {
case JBUF_PASS_THRU:
#if BITS_IN_JSAMPLE != 16
if (cinfo->quantize_colors) {
/* Single-pass processing with color quantization. */
post->pub._post_process_data = post_process_1pass;
post->pub.post_process_data = post_process_1pass;
/* We could be doing buffered-image output before starting a 2-pass
* color quantization; in that case, jinit_d_post_controller did not
* allocate a strip buffer. Use the virtual-array buffer as workspace.
*/
if (post->buffer == NULL) {
post->buffer = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
post->buffer = (*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, post->whole_image,
(JDIMENSION)0, post->strip_height, TRUE);
}
} else
#endif
{
} else {
/* For single-pass processing without color quantization,
* I have no work to do; just call the upsampler directly.
*/
post->pub._post_process_data = cinfo->upsample->_upsample;
post->pub.post_process_data = cinfo->upsample->upsample;
}
break;
#if defined(QUANT_2PASS_SUPPORTED) && BITS_IN_JSAMPLE != 16
#ifdef QUANT_2PASS_SUPPORTED
case JBUF_SAVE_AND_PASS:
/* First pass of 2-pass quantization */
if (post->whole_image == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
post->pub._post_process_data = post_process_prepass;
post->pub.post_process_data = post_process_prepass;
break;
case JBUF_CRANK_DEST:
/* Second pass of 2-pass quantization */
if (post->whole_image == NULL)
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
post->pub._post_process_data = post_process_2pass;
post->pub.post_process_data = post_process_2pass;
break;
#endif /* defined(QUANT_2PASS_SUPPORTED) && BITS_IN_JSAMPLE != 16 */
#endif /* QUANT_2PASS_SUPPORTED */
default:
ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
break;
@@ -136,12 +128,10 @@ start_pass_dpost(j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
* This is used for color precision reduction as well as one-pass quantization.
*/
#if BITS_IN_JSAMPLE != 16
METHODDEF(void)
post_process_1pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
post_process_1pass(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail, _JSAMPARRAY output_buf,
JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
{
my_post_ptr post = (my_post_ptr)cinfo->post;
@@ -153,29 +143,27 @@ post_process_1pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
if (max_rows > post->strip_height)
max_rows = post->strip_height;
num_rows = 0;
(*cinfo->upsample->_upsample) (cinfo, input_buf, in_row_group_ctr,
in_row_groups_avail, post->buffer, &num_rows,
max_rows);
(*cinfo->upsample->upsample) (cinfo, input_buf, in_row_group_ctr,
in_row_groups_avail, post->buffer, &num_rows,
max_rows);
/* Quantize and emit data. */
(*cinfo->cquantize->_color_quantize) (cinfo, post->buffer,
output_buf + *out_row_ctr,
(int)num_rows);
(*cinfo->cquantize->color_quantize) (cinfo, post->buffer,
output_buf + *out_row_ctr,
(int)num_rows);
*out_row_ctr += num_rows;
}
#endif
#if defined(QUANT_2PASS_SUPPORTED) && BITS_IN_JSAMPLE != 16
#ifdef QUANT_2PASS_SUPPORTED
/*
* Process some data in the first pass of 2-pass quantization.
*/
METHODDEF(void)
post_process_prepass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
post_process_prepass(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail, _JSAMPARRAY output_buf,
JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
{
my_post_ptr post = (my_post_ptr)cinfo->post;
@@ -183,23 +171,23 @@ post_process_prepass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
/* Reposition virtual buffer if at start of strip. */
if (post->next_row == 0) {
post->buffer = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
post->buffer = (*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, post->whole_image,
post->starting_row, post->strip_height, TRUE);
}
/* Upsample some data (up to a strip height's worth). */
old_next_row = post->next_row;
(*cinfo->upsample->_upsample) (cinfo, input_buf, in_row_group_ctr,
in_row_groups_avail, post->buffer,
&post->next_row, post->strip_height);
(*cinfo->upsample->upsample) (cinfo, input_buf, in_row_group_ctr,
in_row_groups_avail, post->buffer,
&post->next_row, post->strip_height);
/* Allow quantizer to scan new data. No data is emitted, */
/* but we advance out_row_ctr so outer loop can tell when we're done. */
if (post->next_row > old_next_row) {
num_rows = post->next_row - old_next_row;
(*cinfo->cquantize->_color_quantize) (cinfo, post->buffer + old_next_row,
(_JSAMPARRAY)NULL, (int)num_rows);
(*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row,
(JSAMPARRAY)NULL, (int)num_rows);
*out_row_ctr += num_rows;
}
@@ -216,9 +204,9 @@ post_process_prepass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
METHODDEF(void)
post_process_2pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
post_process_2pass(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr,
JDIMENSION in_row_groups_avail, _JSAMPARRAY output_buf,
JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf,
JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
{
my_post_ptr post = (my_post_ptr)cinfo->post;
@@ -226,7 +214,7 @@ post_process_2pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
/* Reposition virtual buffer if at start of strip. */
if (post->next_row == 0) {
post->buffer = (_JSAMPARRAY)(*cinfo->mem->access_virt_sarray)
post->buffer = (*cinfo->mem->access_virt_sarray)
((j_common_ptr)cinfo, post->whole_image,
post->starting_row, post->strip_height, FALSE);
}
@@ -242,9 +230,9 @@ post_process_2pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
num_rows = max_rows;
/* Quantize and emit data. */
(*cinfo->cquantize->_color_quantize) (cinfo, post->buffer + post->next_row,
output_buf + *out_row_ctr,
(int)num_rows);
(*cinfo->cquantize->color_quantize) (cinfo, post->buffer + post->next_row,
output_buf + *out_row_ctr,
(int)num_rows);
*out_row_ctr += num_rows;
/* Advance if we filled the strip. */
@@ -255,7 +243,7 @@ post_process_2pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
}
}
#endif /* defined(QUANT_2PASS_SUPPORTED) && BITS_IN_JSAMPLE != 16 */
#endif /* QUANT_2PASS_SUPPORTED */
/*
@@ -263,13 +251,10 @@ post_process_2pass(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
*/
GLOBAL(void)
_jinit_d_post_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
jinit_d_post_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
{
my_post_ptr post;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
post = (my_post_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_post_controller));
@@ -280,7 +265,6 @@ _jinit_d_post_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
/* Create the quantization buffer, if needed */
if (cinfo->quantize_colors) {
#if BITS_IN_JSAMPLE != 16
/* The buffer strip height is max_v_samp_factor, which is typically
* an efficient number of rows for upsampling to return.
* (In the presence of output rescaling, we might want to be smarter?)
@@ -301,15 +285,10 @@ _jinit_d_post_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
#endif /* QUANT_2PASS_SUPPORTED */
} else {
/* One-pass color quantization: just make a strip buffer. */
post->buffer = (_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
post->buffer = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
cinfo->output_width * cinfo->out_color_components,
post->strip_height);
}
#else
ERREXIT(cinfo, JERR_NOTIMPL);
#endif
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED) */

View File

@@ -5,7 +5,7 @@
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2010, 2015-2016, 2022, D. R. Commander.
* Copyright (C) 2010, 2015-2016, D. R. Commander.
* Copyright (C) 2014, MIPS Technologies, Inc., California.
* Copyright (C) 2015, Google, Inc.
* Copyright (C) 2019-2020, Arm Limited.
@@ -28,12 +28,10 @@
#include "jinclude.h"
#include "jdsample.h"
#include "jsimd.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
#if BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED)
/*
* Initialize for an upsampling pass.
*/
@@ -59,9 +57,9 @@ start_pass_upsample(j_decompress_ptr cinfo)
*/
METHODDEF(void)
sep_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
sep_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
JDIMENSION *in_row_group_ctr, JDIMENSION in_row_groups_avail,
_JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
JDIMENSION out_rows_avail)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
@@ -97,10 +95,9 @@ sep_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
if (num_rows > out_rows_avail)
num_rows = out_rows_avail;
(*cinfo->cconvert->_color_convert) (cinfo, upsample->color_buf,
(JDIMENSION)upsample->next_row_out,
output_buf + *out_row_ctr,
(int)num_rows);
(*cinfo->cconvert->color_convert) (cinfo, upsample->color_buf,
(JDIMENSION)upsample->next_row_out,
output_buf + *out_row_ctr, (int)num_rows);
/* Adjust counts */
*out_row_ctr += num_rows;
@@ -127,7 +124,7 @@ sep_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,
METHODDEF(void)
fullsize_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
*output_data_ptr = input_data;
}
@@ -140,7 +137,7 @@ fullsize_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
noop_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
*output_data_ptr = NULL; /* safety check */
}
@@ -159,14 +156,14 @@ noop_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
int_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
_JSAMPARRAY output_data = *output_data_ptr;
register _JSAMPROW inptr, outptr;
register _JSAMPLE invalue;
JSAMPARRAY output_data = *output_data_ptr;
register JSAMPROW inptr, outptr;
register JSAMPLE invalue;
register int h;
_JSAMPROW outend;
JSAMPROW outend;
int h_expand, v_expand;
int inrow, outrow;
@@ -187,8 +184,8 @@ int_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
}
/* Generate any additional output rows by duplicating the first one */
if (v_expand > 1) {
_jcopy_sample_rows(output_data, outrow, output_data, outrow + 1,
v_expand - 1, cinfo->output_width);
jcopy_sample_rows(output_data, outrow, output_data, outrow + 1,
v_expand - 1, cinfo->output_width);
}
inrow++;
outrow += v_expand;
@@ -203,12 +200,12 @@ int_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v1_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
_JSAMPARRAY output_data = *output_data_ptr;
register _JSAMPROW inptr, outptr;
register _JSAMPLE invalue;
_JSAMPROW outend;
JSAMPARRAY output_data = *output_data_ptr;
register JSAMPROW inptr, outptr;
register JSAMPLE invalue;
JSAMPROW outend;
int inrow;
for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) {
@@ -231,12 +228,12 @@ h2v1_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v2_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
_JSAMPARRAY output_data = *output_data_ptr;
register _JSAMPROW inptr, outptr;
register _JSAMPLE invalue;
_JSAMPROW outend;
JSAMPARRAY output_data = *output_data_ptr;
register JSAMPROW inptr, outptr;
register JSAMPLE invalue;
JSAMPROW outend;
int inrow, outrow;
inrow = outrow = 0;
@@ -249,8 +246,8 @@ h2v2_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
*outptr++ = invalue;
*outptr++ = invalue;
}
_jcopy_sample_rows(output_data, outrow, output_data, outrow + 1, 1,
cinfo->output_width);
jcopy_sample_rows(output_data, outrow, output_data, outrow + 1, 1,
cinfo->output_width);
inrow++;
outrow += 2;
}
@@ -274,10 +271,10 @@ h2v2_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v1_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
_JSAMPARRAY output_data = *output_data_ptr;
register _JSAMPROW inptr, outptr;
JSAMPARRAY output_data = *output_data_ptr;
register JSAMPROW inptr, outptr;
register int invalue;
register JDIMENSION colctr;
int inrow;
@@ -287,20 +284,20 @@ h2v1_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
outptr = output_data[inrow];
/* Special case for first column */
invalue = *inptr++;
*outptr++ = (_JSAMPLE)invalue;
*outptr++ = (_JSAMPLE)((invalue * 3 + inptr[0] + 2) >> 2);
*outptr++ = (JSAMPLE)invalue;
*outptr++ = (JSAMPLE)((invalue * 3 + inptr[0] + 2) >> 2);
for (colctr = compptr->downsampled_width - 2; colctr > 0; colctr--) {
/* General case: 3/4 * nearer pixel + 1/4 * further pixel */
invalue = (*inptr++) * 3;
*outptr++ = (_JSAMPLE)((invalue + inptr[-2] + 1) >> 2);
*outptr++ = (_JSAMPLE)((invalue + inptr[0] + 2) >> 2);
*outptr++ = (JSAMPLE)((invalue + inptr[-2] + 1) >> 2);
*outptr++ = (JSAMPLE)((invalue + inptr[0] + 2) >> 2);
}
/* Special case for last column */
invalue = *inptr;
*outptr++ = (_JSAMPLE)((invalue * 3 + inptr[-1] + 1) >> 2);
*outptr++ = (_JSAMPLE)invalue;
*outptr++ = (JSAMPLE)((invalue * 3 + inptr[-1] + 1) >> 2);
*outptr++ = (JSAMPLE)invalue;
}
}
@@ -314,10 +311,10 @@ h2v1_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h1v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
_JSAMPARRAY output_data = *output_data_ptr;
_JSAMPROW inptr0, inptr1, outptr;
JSAMPARRAY output_data = *output_data_ptr;
JSAMPROW inptr0, inptr1, outptr;
#if BITS_IN_JSAMPLE == 8
int thiscolsum, bias;
#else
@@ -342,7 +339,7 @@ h1v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
for (colctr = 0; colctr < compptr->downsampled_width; colctr++) {
thiscolsum = (*inptr0++) * 3 + (*inptr1++);
*outptr++ = (_JSAMPLE)((thiscolsum + bias) >> 2);
*outptr++ = (JSAMPLE)((thiscolsum + bias) >> 2);
}
}
inrow++;
@@ -360,10 +357,10 @@ h1v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
METHODDEF(void)
h2v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
_JSAMPARRAY input_data, _JSAMPARRAY *output_data_ptr)
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
{
_JSAMPARRAY output_data = *output_data_ptr;
register _JSAMPROW inptr0, inptr1, outptr;
JSAMPARRAY output_data = *output_data_ptr;
register JSAMPROW inptr0, inptr1, outptr;
#if BITS_IN_JSAMPLE == 8
register int thiscolsum, lastcolsum, nextcolsum;
#else
@@ -386,22 +383,22 @@ h2v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
/* Special case for first column */
thiscolsum = (*inptr0++) * 3 + (*inptr1++);
nextcolsum = (*inptr0++) * 3 + (*inptr1++);
*outptr++ = (_JSAMPLE)((thiscolsum * 4 + 8) >> 4);
*outptr++ = (_JSAMPLE)((thiscolsum * 3 + nextcolsum + 7) >> 4);
*outptr++ = (JSAMPLE)((thiscolsum * 4 + 8) >> 4);
*outptr++ = (JSAMPLE)((thiscolsum * 3 + nextcolsum + 7) >> 4);
lastcolsum = thiscolsum; thiscolsum = nextcolsum;
for (colctr = compptr->downsampled_width - 2; colctr > 0; colctr--) {
/* General case: 3/4 * nearer pixel + 1/4 * further pixel in each */
/* dimension, thus 9/16, 3/16, 3/16, 1/16 overall */
nextcolsum = (*inptr0++) * 3 + (*inptr1++);
*outptr++ = (_JSAMPLE)((thiscolsum * 3 + lastcolsum + 8) >> 4);
*outptr++ = (_JSAMPLE)((thiscolsum * 3 + nextcolsum + 7) >> 4);
*outptr++ = (JSAMPLE)((thiscolsum * 3 + lastcolsum + 8) >> 4);
*outptr++ = (JSAMPLE)((thiscolsum * 3 + nextcolsum + 7) >> 4);
lastcolsum = thiscolsum; thiscolsum = nextcolsum;
}
/* Special case for last column */
*outptr++ = (_JSAMPLE)((thiscolsum * 3 + lastcolsum + 8) >> 4);
*outptr++ = (_JSAMPLE)((thiscolsum * 4 + 7) >> 4);
*outptr++ = (JSAMPLE)((thiscolsum * 3 + lastcolsum + 8) >> 4);
*outptr++ = (JSAMPLE)((thiscolsum * 4 + 7) >> 4);
}
inrow++;
}
@@ -413,7 +410,7 @@ h2v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
*/
GLOBAL(void)
_jinit_upsampler(j_decompress_ptr cinfo)
jinit_upsampler(j_decompress_ptr cinfo)
{
my_upsample_ptr upsample;
int ci;
@@ -421,16 +418,13 @@ _jinit_upsampler(j_decompress_ptr cinfo)
boolean need_buffer, do_fancy;
int h_in_group, v_in_group, h_out_group, v_out_group;
if (cinfo->data_precision != BITS_IN_JSAMPLE)
ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
if (!cinfo->master->jinit_upsampler_no_alloc) {
upsample = (my_upsample_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
sizeof(my_upsampler));
cinfo->upsample = (struct jpeg_upsampler *)upsample;
upsample->pub.start_pass = start_pass_upsample;
upsample->pub._upsample = sep_upsample;
upsample->pub.upsample = sep_upsample;
upsample->pub.need_context_rows = FALSE; /* until we find out differently */
} else
upsample = (my_upsample_ptr)cinfo->upsample;
@@ -470,25 +464,21 @@ _jinit_upsampler(j_decompress_ptr cinfo)
} else if (h_in_group * 2 == h_out_group && v_in_group == v_out_group) {
/* Special cases for 2h1v upsampling */
if (do_fancy && compptr->downsampled_width > 2) {
#ifdef WITH_SIMD
if (jsimd_can_h2v1_fancy_upsample())
upsample->methods[ci] = jsimd_h2v1_fancy_upsample;
else
#endif
upsample->methods[ci] = h2v1_fancy_upsample;
} else {
#ifdef WITH_SIMD
if (jsimd_can_h2v1_upsample())
upsample->methods[ci] = jsimd_h2v1_upsample;
else
#endif
upsample->methods[ci] = h2v1_upsample;
}
} else if (h_in_group == h_out_group &&
v_in_group * 2 == v_out_group && do_fancy) {
/* Non-fancy upsampling is handled by the generic method */
#if defined(WITH_SIMD) && (defined(__arm__) || defined(__aarch64__) || \
defined(_M_ARM) || defined(_M_ARM64))
#if defined(__arm__) || defined(__aarch64__) || \
defined(_M_ARM) || defined(_M_ARM64)
if (jsimd_can_h1v2_fancy_upsample())
upsample->methods[ci] = jsimd_h1v2_fancy_upsample;
else
@@ -499,25 +489,21 @@ _jinit_upsampler(j_decompress_ptr cinfo)
v_in_group * 2 == v_out_group) {
/* Special cases for 2h2v upsampling */
if (do_fancy && compptr->downsampled_width > 2) {
#ifdef WITH_SIMD
if (jsimd_can_h2v2_fancy_upsample())
upsample->methods[ci] = jsimd_h2v2_fancy_upsample;
else
#endif
upsample->methods[ci] = h2v2_fancy_upsample;
upsample->pub.need_context_rows = TRUE;
} else {
#ifdef WITH_SIMD
if (jsimd_can_h2v2_upsample())
upsample->methods[ci] = jsimd_h2v2_upsample;
else
#endif
upsample->methods[ci] = h2v2_upsample;
}
} else if ((h_out_group % h_in_group) == 0 &&
(v_out_group % v_in_group) == 0) {
/* Generic integral-factors upsampling method */
#if defined(WITH_SIMD) && defined(__mips__)
#if defined(__mips__)
if (jsimd_can_int_upsample())
upsample->methods[ci] = jsimd_int_upsample;
else
@@ -528,7 +514,7 @@ _jinit_upsampler(j_decompress_ptr cinfo)
} else
ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL);
if (need_buffer && !cinfo->master->jinit_upsampler_no_alloc) {
upsample->color_buf[ci] = (_JSAMPARRAY)(*cinfo->mem->alloc_sarray)
upsample->color_buf[ci] = (*cinfo->mem->alloc_sarray)
((j_common_ptr)cinfo, JPOOL_IMAGE,
(JDIMENSION)jround_up((long)cinfo->output_width,
(long)cinfo->max_h_samp_factor),
@@ -536,5 +522,3 @@ _jinit_upsampler(j_decompress_ptr cinfo)
}
}
}
#endif /* BITS_IN_JSAMPLE != 16 || defined(D_LOSSLESS_SUPPORTED) */

View File

@@ -3,22 +3,19 @@
*
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1991-1996, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2022, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*/
#define JPEG_INTERNALS
#include "jpeglib.h"
#include "jsamplecomp.h"
/* Pointer to routine to upsample a single component */
typedef void (*upsample1_ptr) (j_decompress_ptr cinfo,
jpeg_component_info *compptr,
_JSAMPARRAY input_data,
_JSAMPARRAY *output_data_ptr);
JSAMPARRAY input_data,
JSAMPARRAY *output_data_ptr);
/* Private subobject */
@@ -32,7 +29,7 @@ typedef struct {
* ie do not need rescaling. The corresponding entry of color_buf[] is
* simply set to point to the input data array, thereby avoiding copying.
*/
_JSAMPARRAY color_buf[MAX_COMPONENTS];
JSAMPARRAY color_buf[MAX_COMPONENTS];
/* Per-component upsampling method pointers */
upsample1_ptr methods[MAX_COMPONENTS];

View File

@@ -4,7 +4,7 @@
* This file was part of the Independent JPEG Group's software:
* Copyright (C) 1995-1997, Thomas G. Lane.
* libjpeg-turbo Modifications:
* Copyright (C) 2020, 2022, D. R. Commander.
* Copyright (C) 2020, D. R. Commander.
* For conditions of distribution and use, see the accompanying README.ijg
* file.
*
@@ -16,7 +16,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jpegapicomp.h"
#include "jpegcomp.h"
/* Forward declarations */
@@ -48,9 +48,6 @@ LOCAL(void) transdecode_master_selection(j_decompress_ptr cinfo);
GLOBAL(jvirt_barray_ptr *)
jpeg_read_coefficients(j_decompress_ptr cinfo)
{
if (cinfo->master->lossless)
ERREXIT(cinfo, JERR_NOTIMPL);
if (cinfo->global_state == DSTATE_READY) {
/* First call: initialize active modules */
transdecode_master_selection(cinfo);
@@ -130,10 +127,7 @@ transdecode_master_selection(j_decompress_ptr cinfo)
}
/* Always get a full-image coefficient buffer. */
if (cinfo->data_precision == 12)
j12init_d_coef_controller(cinfo, TRUE);
else
jinit_d_coef_controller(cinfo, TRUE);
jinit_d_coef_controller(cinfo, TRUE);
/* We can now tell the memory manager to allocate virtual arrays. */
(*cinfo->mem->realize_virt_arrays) ((j_common_ptr)cinfo);

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