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Implement libplacebo on MoltenVK

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This commit is contained in:
Cameron Gutman
2026-06-14 15:45:38 -05:00
parent ec75f0d8de
commit 8c6b422040
6 changed files with 237 additions and 15 deletions
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app/main.cpp
+7 -2
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@@ -635,8 +635,13 @@ int main(int argc, char *argv[])
qputenv("QSG_RENDER_LOOP", "basic");
#endif
#if defined(Q_OS_DARWIN) && defined(QT_DEBUG)
// Enable Metal valiation for debug builds
#if defined(Q_OS_DARWIN) && defined(QT_DEBUG) && !defined(HAVE_LIBPLACEBO_VULKAN)
// Enable Metal valiation for debug builds without libplacebo
//
// The current MoltenVK driver as of Vulkan SDK 1.4.350 triggers Metal debug layer
// violations on frame and overlay uploads like:
// _validateReplaceRegion:252: failed assertion `Replace Region Validation
// bytesPerRow(4803) must be a multiple of MTLPixelFormatBGRA8Unorm pixel bytes(4).
qputenv("MTL_DEBUG_LAYER", "1");
qputenv("MTL_SHADER_VALIDATION", "1");
#endif