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Calculate accurate stream-out buffer size, minus room for any counters

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baldurk
2018-03-05 12:39:48 +00:00
parent 75ce866a2e
commit e1b0340b5d
1 changed files with 8 additions and 11 deletions
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renderdoc/driver/d3d12/d3d12_postvs.cpp
+8 -11
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@@ -362,7 +362,7 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
D3D12_STREAM_OUTPUT_BUFFER_VIEW view;
view.BufferFilledSizeLocation = m_SOBuffer->GetGPUVirtualAddress();
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + 64;
view.SizeInBytes = m_SOBufferSize;
view.SizeInBytes = m_SOBufferSize - 64;
list->SOSetTargets(0, 1, &view);
list->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_POINTLIST);
@@ -476,7 +476,7 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
D3D12_STREAM_OUTPUT_BUFFER_VIEW view;
view.BufferFilledSizeLocation = m_SOBuffer->GetGPUVirtualAddress();
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + 64;
view.SizeInBytes = m_SOBufferSize;
view.SizeInBytes = m_SOBufferSize - 64;
list->SOSetTargets(0, 1, &view);
list->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_POINTLIST);
@@ -824,7 +824,7 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
view.BufferFilledSizeLocation = m_SOBuffer->GetGPUVirtualAddress();
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + 64;
view.SizeInBytes = m_SOBufferSize;
view.SizeInBytes = m_SOBufferSize - 64;
// draws with multiple instances must be replayed one at a time so we can record the number of
// primitives from each drawcall, as due to expansion this can vary per-instance.
if(drawcall->numInstances > 1)
@@ -843,7 +843,7 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
view.BufferFilledSizeLocation = m_SOBuffer->GetGPUVirtualAddress();
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + 64;
view.SizeInBytes = m_SOBufferSize;
view.SizeInBytes = m_SOBufferSize - 64;
// do a dummy draw to make sure we have enough space in the output buffer
list->SOSetTargets(0, 1, &view);
@@ -896,10 +896,6 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
CreateSOBuffers();
}
view.BufferFilledSizeLocation = m_SOBuffer->GetGPUVirtualAddress();
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + 64;
view.SizeInBytes = m_SOBufferSize;
GetDebugManager()->ResetDebugAlloc();
// now do the actual stream out
@@ -935,8 +931,9 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
}
// reserve space for enough 'buffer filled size' locations
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() +
AlignUp(uint64_t(drawcall->numInstances * sizeof(UINT64)), 64ULL);
UINT64 SizeCounterBytes = AlignUp(uint64_t(drawcall->numInstances * sizeof(UINT64)), 64ULL);
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + SizeCounterBytes;
view.SizeInBytes = m_SOBufferSize - SizeCounterBytes;
// do incremental draws to get the output size. We have to do this O(N^2) style because
// there's no way to replay only a single instance. We have to replay 1, 2, 3, ... N instances
@@ -991,7 +988,7 @@ void D3D12Replay::InitPostVSBuffers(uint32_t eventId)
view.BufferFilledSizeLocation = m_SOBuffer->GetGPUVirtualAddress();
view.BufferLocation = m_SOBuffer->GetGPUVirtualAddress() + 64;
view.SizeInBytes = m_SOBufferSize;
view.SizeInBytes = m_SOBufferSize - 64;
list->SOSetTargets(0, 1, &view);