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[d3d9] Fix potential race when discarding systemmem textures

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Robin Kertels 2023-06-11 13:42:01 +02:00 committed by Joshie
parent 22f6246fd6
commit a1a91dd766
1 changed files with 5 additions and 1 deletions
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6
src/d3d9/d3d9_device.cpp
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@ -4384,7 +4384,11 @@ namespace dxvk {
// then we need to copy -> buffer
// We are also always dirty if we are a render target,
// a depth stencil, or auto generate mipmaps.
bool needsReadback = (pResource->NeedsReadback(Subresource) || renderable) && !(Flags & D3DLOCK_DISCARD);
bool needsReadback = pResource->NeedsReadback(Subresource) || renderable;
// Skip readback if we discard is specified. We can only do this for textures that have an associated Vulkan image.
// Any other texture might write to the Vulkan staging buffer directly. (GetBackbufferData for example)
needsReadback &= pResource->GetImage() != nullptr || !(Flags & D3DLOCK_DISCARD);
pResource->SetNeedsReadback(Subresource, false);