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texture_cache: view BC images for raw reads of their layers instead of evicting them

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nmzik
2026-10-26 02:20:54 +01:00
parent ce5e57aa36
commit 72d7da7266
2 changed files with 43 additions and 1 deletions
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src/graphics/host_gpu/renderer/cache/textureCache.cpp
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+9 -1
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@@ -783,7 +783,15 @@ TextureCache::OverlapResult TextureCache::ResolveOverlap(const ImageInfo& reques
if (!cached.registered) {
return {merged_id};
}
if (BcAlias::Matches(requested, cached.info) && !cached.IsCpuDirty()) {
// PS5: image heaps keep BC images and raw block views of their layers resident together, so a
// raw read of a layer subset with the same levels views the BC image instead of evicting it.
const bool raw_view = binding == BindingType::Texture && !requested.IsBlock() &&
requested.type == cached.info.type &&
requested.data.address == cached.info.data.address &&
requested.BlockExtent() == cached.info.BlockExtent() &&
requested.resources.levels == cached.info.resources.levels &&
requested.resources.layers < cached.info.resources.layers;
if (!raw_view && BcAlias::Matches(requested, cached.info) && !cached.IsCpuDirty()) {
BcAlias::Resolve(*this, cached_id, merged_id);
return {merged_id};
}