lee/renderdoc
1
0 Fork 0
mirror of https://github.com/baldurk/renderdoc.git synced 2026-11-11 16:33:38 +00:00
Code Issues Packages Projects Releases Wiki Activity

D3D12 Workgroup debugger, add padding lanes to align to subgroup size

Browse Source
This commit is contained in:
Jake Turner committed 2025-04-18 13:58:09 +01:00
1 parent 53ad61b6a5
commit ede0c1d0ee
1 file changed
+14 -1
Download Patch File Download Diff File Expand all files Collapse all files
renderdoc/driver/d3d12/d3d12_shaderdebug.cpp
+14 -1
View File
@@ -3767,7 +3767,20 @@ ShaderDebugTrace *D3D12Replay::DebugThread(uint32_t eventId,
0U, 0U);
}
// plain single thread case
// Add inactive padding lanes to round up to the subgroup size
const uint32_t numPaddingThreads = AlignUp(numThreads, subgroupSize) - numThreads;
if(numPaddingThreads > 0)
{
uint32_t newNumThreads = numThreads + numPaddingThreads;
workgroupProperties.resize(newNumThreads);
for(uint32_t i = numThreads; i < newNumThreads; ++i)
{
workgroupProperties[i][DXILDebug::ThreadProperty::Active] = 0;
workgroupProperties[i][DXILDebug::ThreadProperty::SubgroupIdx] = i % subgroupSize;
}
numThreads = newNumThreads;
}
DXILDebug::Debugger *debugger = new DXILDebug::Debugger();
ret = debugger->BeginDebug(eventId, dxbc, refl, activeLaneIndex, numThreads);
DXILDebug::GlobalState &globalState = debugger->GetGlobalState();