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Preserve PS5 mip-tail views and GPU data during image expansion

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Related work: https://github.com/KytyPS5/KytyPS5/pull/558

Co-authored-by: Çağatay Güçlü <33038942+defektu@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-16 18:15:14 +04:00
parent c1dccd7db1
commit 8589731a27
4 changed files with 101 additions and 49 deletions
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src/graphics/host_gpu/renderer/cache/textureCache.cpp
Vendored
+14 -3
View File
@@ -208,6 +208,10 @@ bool TextureCache::SameBacking(const ImageInfo& cached, const ImageInfo& request
if (cached.extent != requested.extent) {
return false;
}
if (cached.resources.levels < requested.resources.levels ||
cached.resources.layers < requested.resources.layers) {
return false;
}
if (cached.samples != requested.samples) {
return false;
}
@@ -843,6 +847,16 @@ TextureCache::OverlapResult TextureCache::ResolveOverlap(const ImageInfo& reques
ImageViewOps::FormatsCompatible(cached.info.pixel_format, requested.pixel_format)) {
return {ExpandImage(requested, cached_id)};
}
// PS5 mip tails can expose more levels without increasing the guest allocation.
if (requested.pixel_format == cached.info.pixel_format &&
requested.type == cached.info.type && requested.resources > cached.info.resources &&
(requested.data.size > cached.info.data.size ||
(requested.data.size == cached.info.data.size &&
requested.extent == cached.info.extent &&
cached.info.resources.levels > 1 &&
requested.resources.layers == cached.info.resources.layers))) {
return {ExpandImage(requested, cached_id)};
}
if (requested.pixel_format != cached.info.pixel_format ||
requested.data.size <= cached.info.data.size) {
const auto result_id = merged_id ? merged_id : cached_id;
@@ -852,9 +866,6 @@ TextureCache::OverlapResult TextureCache::ResolveOverlap(const ImageInfo& reques
? result_id
: ImageId {}};
}
if (requested.type == cached.info.type && requested.resources > cached.info.resources) {
return {ExpandImage(requested, cached_id)};
}
EXIT("TextureCache: unresolvable equal-address image overlap, address=0x%016" PRIx64
" requested=%ux%u "
"cached=%ux%u requested_size=0x%016" PRIx64 " cached_size=0x%016" PRIx64