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renderer: decode R32_SFLOAT packed colour clears (#436)

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* renderer: decode R32_SFLOAT packed colour clears

DecodePackedColorClear handled R32Uint, R32Sint and the 8/10-bit formats but fell through to the default false case for R32Sfloat. metadata_clear_supported then went false, the clear value was discarded, and the target kept its previous contents. Decode the packed word as float bits, matching DecodePackedDepthClear directly below, and reject non-finite patterns rather than materializing them.

* renderer: preserve all R32_SFLOAT clear bits

---------

Co-authored-by: nmzik <Nmzik@mail.ru>
This commit is contained in:
CheesyPoofs3460
2026-08-31 16:37:55 -07:00
committed by GitHub
parent d1eee7b3a9
commit e0c055fd74
1 changed files with 4 additions and 0 deletions
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src/graphics/host_gpu/renderer/image/imageInfo.h
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@@ -431,6 +431,10 @@ IsSupportedDisplayRenderTargetTileMode(Prospero::TileMode tile_mode) noexcept {
return encoded <= 0.04045f ? encoded / 12.92f : std::pow((encoded + 0.055f) / 1.055f, 2.4f);
};
switch (format) {
// A single-plane float target carries its clear as raw float bits, the same encoding the
// depth decoder below uses. Without this the clear is discarded and the target keeps stale
// contents.
case vk::Format::eR32Sfloat: next.float32[0] = std::bit_cast<float>(packed); break;
case vk::Format::eR32Uint: next.uint32[0] = packed; break;
case vk::Format::eR32Sint: next.int32[0] = static_cast<int32_t>(packed); break;
case vk::Format::eR8G8B8A8Srgb: