omar/panopainter
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add desktop GPU preview readback gate

Browse Source
This commit is contained in:
omigamedev
2026-06-13 18:39:16 +02:00
parent dd9d9f532c
commit 4a44e6cd9e
4 changed files with 58 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
tests/CMakeLists.txt
View File

@@ -261,7 +261,7 @@ if(TARGET pp_renderer_gl)
user32)
endif()
add_test(NAME pp_renderer_gl_gpu_readback_tests COMMAND pp_renderer_gl_gpu_readback_tests)
add_test(NAME pp_renderer_gl_gpu_readback_tests COMMAND $<TARGET_FILE:pp_renderer_gl_gpu_readback_tests>)
set_tests_properties(pp_renderer_gl_gpu_readback_tests PROPERTIES
LABELS "renderer;gpu"
SKIP_REGULAR_EXPRESSION "\\[skip\\]")

39
tests/renderer_gl/gpu_readback_tests.cpp
View File

@@ -175,11 +175,50 @@ void opengl_clear_readback_matches_fixture(pp::tests::Harness& h)
#endif
}
void opengl_preview_readback_matches_fixture(pp::tests::Harness& h)
{
#if defined(_WIN32)
HiddenWglContext context;
if (!context.ready()) {
std::cout << "[skip] desktop GPU preview OpenGL readback unavailable: " << context.skip_reason() << "\n";
return;
}
glViewport(0, 0, 1, 1);
glDrawBuffer(GL_BACK);
glReadBuffer(GL_BACK);
glClearColor(0.0F, 1.0F, 0.0F, 1.0F);
glClear(GL_COLOR_BUFFER_BIT);
glFinish();
std::array<std::uint8_t, 4> pixel {};
glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel.data());
constexpr std::array<std::uint8_t, 4> expected {
0,
255,
0,
255,
};
if (pixel != expected) {
std::cout << "preview readback rgba: "
<< static_cast<int>(pixel[0]) << ", "
<< static_cast<int>(pixel[1]) << ", "
<< static_cast<int>(pixel[2]) << ", "
<< static_cast<int>(pixel[3]) << "\n";
}
PP_EXPECT(h, pixel == expected);
#else
std::cout << "[skip] desktop GPU preview OpenGL readback unavailable: no platform context helper\n";
#endif
}
}
int main()
{
pp::tests::Harness harness;
harness.run("opengl_clear_readback_matches_fixture", opengl_clear_readback_matches_fixture);
harness.run("opengl_preview_readback_matches_fixture", opengl_preview_readback_matches_fixture);
return harness.finish();
}