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[idd] serialize framebuffer copies on one queue

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Replace the rotating D3D12 copy queues with two framebuffer-bound
recording slots on one physical COPY queue. Keep allocator, command
list, query range, callback state, and fence target independent per
slot.

Submit source waits, execution, and signaling on the shared timeline.
Track framebuffer ownership through completion and serialize LGMP
publication around the last successfully published frame.
This commit is contained in:
Geoffrey McRae
2026-08-03 18:08:36 +10:00
parent 843207c628
commit ff4ca7d786
12 changed files with 813 additions and 423 deletions
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9
idd/LGIdd/CD3D12Device.h
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@@ -49,10 +49,9 @@ struct CD3D12Device
ComPtr<ID3D12Device3> m_device;
ComPtr<ID3D12Heap > m_ivshmemHeap;
CD3D12CommandQueue m_copyQueue[4];
unsigned m_copyQueueIndex = 0;
CD3D12CommandQueue m_copyQueue;
CD3D12CommandQueue m_computeQueue;
bool m_computeEnabled = false;
bool m_computeEnabled = false;
bool HeapTest();
@@ -80,6 +79,6 @@ struct CD3D12Device
ComPtr<ID3D12Heap > GetHeap() { return m_ivshmemHeap; }
bool IsIndirectCopy() { return m_indirectCopy; }
CD3D12CommandQueue * GetCopyQueue();
CD3D12CommandQueue * GetComputeQueue();
CD3D12CommandSlot * GetCopySlot(unsigned frameIndex);
CD3D12CommandSlot * GetComputeSlot();
};