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Fix SDL GPU D3D12 Descriptor Heap leak

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When descriptor leaks overflow, the D3D12 SDL GPU renderer fetches more from the pool, but never returns them, which eventually causes an "out of memory" crash.
This commit is contained in:
Edu Garcia
2025-10-09 14:43:11 +01:00
committed by Sam Lantinga
parent 2a96997e90
commit c74b406a4c
1 changed files with 7 additions and 0 deletions
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7
src/gpu/d3d12/SDL_gpu_d3d12.c
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@@ -4885,7 +4885,14 @@ static void D3D12_INTERNAL_SetGPUDescriptorHeaps(D3D12CommandBuffer *commandBuff
viewHeap = D3D12_INTERNAL_AcquireGPUDescriptorHeapFromPool(commandBuffer, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
samplerHeap = D3D12_INTERNAL_AcquireGPUDescriptorHeapFromPool(commandBuffer, D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
if (commandBuffer->gpuDescriptorHeaps[0] != NULL) {
D3D12_INTERNAL_ReturnGPUDescriptorHeapToPool(commandBuffer->renderer, commandBuffer->gpuDescriptorHeaps[0]);
}
commandBuffer->gpuDescriptorHeaps[0] = viewHeap;
if (commandBuffer->gpuDescriptorHeaps[1] != NULL) {
D3D12_INTERNAL_ReturnGPUDescriptorHeapToPool(commandBuffer->renderer, commandBuffer->gpuDescriptorHeaps[1]);
}
commandBuffer->gpuDescriptorHeaps[1] = samplerHeap;
heaps[0] = viewHeap->handle;