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Core, Highgui: OpenGL wrappers & window free-callback API #29485 This PR is a continuation of the work started in [20371](https://github.com/opencv/opencv/pull/20371) ### 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 - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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// Copyright (C) 2026, BigVision LLC, all rights reserved.
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// Third party copyrights are property of their respective owners.
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#include "test_precomp.hpp"
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#include <opencv2/core/opengl.hpp>
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namespace opencv_test { namespace {
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using namespace cv;
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// ogl wrappers need a current GL context; skip when none is available (headless CI).
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static void ensureGlContext(const String& w)
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{
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try
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{
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namedWindow(w, WINDOW_OPENGL);
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if (getWindowProperty(w, WND_PROP_OPENGL) <= 0)
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throw cvtest::SkipTestException("window created without an OpenGL context");
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setOpenGlContext(w);
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}
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catch (const cv::Exception&)
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{
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throw cvtest::SkipTestException("OpenGL/display not available");
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}
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}
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// A grown sole-owner buffer must keep the same GL id (in-place resize).
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TEST(OpenGL_Buffer, resize_keeps_id)
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{
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const String w = "ogl_buf_test";
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ensureGlContext(w);
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ogl::Buffer buf;
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buf.create(4, 3, CV_32F, ogl::Buffer::ARRAY_BUFFER, false);
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unsigned int id1 = buf.bufId();
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EXPECT_NE(id1, 0u);
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buf.create(16, 3, CV_32F, ogl::Buffer::ARRAY_BUFFER, false); // grow -> resize in place
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EXPECT_EQ(buf.bufId(), id1);
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destroyWindow(w);
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}
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// Shader compile + type().
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TEST(OpenGL_Shader, compile_and_type)
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{
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const String w = "ogl_shader_test";
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ensureGlContext(w);
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const char* vs = "#version 330 core\nvoid main(){ gl_Position = vec4(0.0); }";
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ogl::Shader sh(vs, ogl::Shader::VERTEX, false);
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EXPECT_NE(sh.shaderId(), 0u);
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EXPECT_EQ(sh.type(), ogl::Shader::VERTEX);
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destroyWindow(w);
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}
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}} // namespace
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