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graphics: trust image-local readback validity

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This commit is contained in:
nmzik
2026-09-28 21:28:58 +04:00
parent 0471c9991c
commit 6ee1bf9db0
3 changed files with 35 additions and 15 deletions
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src/graphics/host_gpu/renderer/cache/textureCache.cpp
Vendored
+4 -12
View File
@@ -222,14 +222,6 @@ TextureCache::BindingType TextureCache::UploadBinding(const Image& image) {
return image.usage.storage ? BindingType::Storage : BindingType::Texture;
}
bool TextureCache::SafeToDownload(const Image& image) {
if (!image.SafeToDownload()) {
return false;
}
const auto range = image.info.data;
return !m_buffer_cache.HasGpuDirtyBytes(range.address, range.size);
}
ImageId TextureCache::InsertImage(const ImageInfo& info) {
const auto id = m_slot_images.insert(m_graphics, m_scheduler, info);
if (!info.data.Empty()) {
@@ -1360,7 +1352,7 @@ ImageId TextureCache::FindImageFromRange(uint64_t address, uint64_t size, bool e
if (ensure_valid && owner->depth_id) {
owner = m_slot_images.try_get(owner->depth_id);
}
if (owner == nullptr || (ensure_valid && !SafeToDownload(*owner))) {
if (owner == nullptr || (ensure_valid && !owner->SafeToDownload())) {
continue;
}
matches.push_back(id);
@@ -1751,7 +1743,7 @@ bool BufferCache::SynchronizeBufferFromImage(Buffer& buffer, uint64_t vaddr, uin
std::scoped_lock lock {m_texture_cache.m_lock};
auto& image = m_texture_cache.m_slot_images[selected];
// The GPU thread owns image retirement; CPU invalidation can dirty this image after lookup.
if (!m_texture_cache.SafeToDownload(image)) {
if (!image.SafeToDownload()) {
return false;
}
if (!buffer.IsInBounds(image.info.data.address, 1)) {
@@ -1814,7 +1806,7 @@ bool TextureCache::DownloadImageMemory(ImageId id) {
return false;
}
auto transfer = BuildDownload(image);
if (!transfer.valid || !SafeToDownload(image)) {
if (!transfer.valid || !image.SafeToDownload()) {
return false;
}
const auto range = image.info.data;
@@ -2001,7 +1993,7 @@ void TextureCache::RunGarbageCollector() {
continue;
}
if (owner->IsGpuModified()) {
const bool safe = SafeToDownload(*owner);
const bool safe = owner->SafeToDownload();
if (safe && owner->info.IsTiled()) {
continue;
}
src/graphics/host_gpu/renderer/cache/textureCache.h
Vendored
-1
View File
@@ -128,7 +128,6 @@ private:
[[nodiscard]] static bool SameBacking(const ImageInfo& cached, const ImageInfo& requested,
bool exact_format);
[[nodiscard]] static BindingType UploadBinding(const Image& image);
[[nodiscard]] bool SafeToDownload(const Image& image);
// Caller holds m_lock; it also serializes the per-image query epoch.
[[nodiscard]] ImageIds FindImagesInRegion(uint64_t address, uint64_t size,