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Fixed upside-down webcam in group calls on Linux QRhi path.

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23rd
2026-04-23 23:25:26 +03:00
parent c1e0c9aefb
commit 84df44d344
1 changed files with 12 additions and 0 deletions
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Telegram/SourceFiles/calls/group/calls_group_viewport_rhi.cpp
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@@ -952,12 +952,24 @@ void Viewport::RendererRhi::drawYuv2RgbPass(
tileData.convertedSize = frameSize;
}
// Y-flip the UV for Linux: QRhi/OpenGL on Linux lands YUV frames
// upside-down in the offscreen RGB target compared with Metal/D3D11
// backends used on macOS/Windows, which already render correctly.
#ifdef Q_OS_LINUX
const float coords[] = {
-1.f, -1.f, 0.f, 0.f,
1.f, -1.f, 1.f, 0.f,
-1.f, 1.f, 0.f, 1.f,
1.f, 1.f, 1.f, 1.f,
};
#else // Q_OS_LINUX
const float coords[] = {
-1.f, -1.f, 0.f, 1.f,
1.f, -1.f, 1.f, 1.f,
-1.f, 1.f, 0.f, 0.f,
1.f, 1.f, 1.f, 0.f,
};
#endif // Q_OS_LINUX
if (!_rub) {
_rub = _rhi->nextResourceUpdateBatch();