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[Perf] (MG_Backend/DirectVulkan): skip cross-draw re-sync of unchanged textures via a content-version early-out; SyncTextureAndGetDescriptor 8.9%->2.4%

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swung0x48
2026-07-12 18:40:48 -04:00
parent 6f53b9a6bb
commit e8e1521972
5 changed files with 37 additions and 0 deletions
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MobileGL/MG_State/GLState/TextureState/TextureObject.cpp
+7
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@@ -207,6 +207,10 @@ namespace MobileGL {
return m_textureParamsVersion;
}
Uint64 TextureObjectBase::GetContentVersion() const {
return m_contentVersion;
}
Int TextureObjectBase::GetSamples() const {
return m_samples;
}
@@ -257,6 +261,9 @@ namespace MobileGL {
void TextureObjectWithOneMipmap::MarkStorageDirty(TextureUploadTarget uploadTarget, Uint mipmapLevel,
Bool dirty) {
if (dirty) {
++m_contentVersion;
}
m_textureStorage.MarkDirty(GetIndexOfTextureUploadTarget(uploadTarget), mipmapLevel, dirty);
}
MobileGL/MG_State/GLState/TextureState/TextureObject.h
+8
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@@ -47,6 +47,10 @@ namespace MobileGL::MG_State::GLState {
virtual Uint GetImmutableLevels() const = 0;
virtual void SetImmutableLevels(Uint levels) = 0;
virtual Uint16 GetTextureParamsVersion() const = 0;
// Monotonic counter bumped on every CPU-side pixel mutation (see MarkStorageDirty).
// Backends compare it against a per-resource snapshot to skip re-syncing unchanged
// textures across draws (e.g. the block atlas bound across a whole terrain batch).
virtual Uint64 GetContentVersion() const = 0;
virtual Int GetSamples() const = 0;
virtual void SetSamples(Int samples) = 0;
virtual Bool HasFixedSampleLocations() const = 0;
@@ -86,6 +90,7 @@ namespace MobileGL::MG_State::GLState {
Uint GetImmutableLevels() const override;
void SetImmutableLevels(Uint levels) override;
Uint16 GetTextureParamsVersion() const override;
Uint64 GetContentVersion() const override;
Int GetSamples() const override;
void SetSamples(Int samples) override;
Bool HasFixedSampleLocations() const override;
@@ -108,6 +113,9 @@ namespace MobileGL::MG_State::GLState {
UintVec2 m_levelRange = {0, 1000};
Uint m_immutableLevels = 0;
Uint16 m_textureParamsVersion = 0;
// Starts at 1 so a freshly-created backend resource (snapshot 0) never spuriously
// matches before its first sync. Bumped only on dirty=true in MarkStorageDirty.
Uint64 m_contentVersion = 1;
Int m_samples = 0;
Bool m_fixedSampleLocations = true;
};
MobileGL/MG_State/GLState/TextureState/TextureObject2DCube.cpp
+3
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@@ -41,6 +41,9 @@ namespace MobileGL {
}
void TextureObject2DCube::MarkStorageDirty(TextureUploadTarget uploadTarget, Uint mipmapLevel, bool dirty) {
if (dirty) {
++m_contentVersion;
}
m_textureStorage.MarkDirty(GetIndexOfTextureUploadTarget(uploadTarget), mipmapLevel, dirty);
}