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Add a D3D12 Shader Debug Zoo test for oob array access in a CBV

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GPU will use the bytes from the bound buffer
Debugger simulation will return 0,0,0,0
This commit is contained in:
Jake Turner
2026-05-11 12:28:48 +01:00
parent a9bafd2723
commit 0a212d07d0
1 changed files with 23 additions and 2 deletions
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util/test/demos/d3d12/d3d12_shader_debug_zoo.cpp
+23 -2
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@@ -1728,6 +1728,11 @@ cbuffer packed_consts : register(b1)
uint col2w : packoffset(c2.w);
};
cbuffer oob_consts : register(b2)
{
int4 oob_array[2];
};
RWStructuredBuffer<uint4> bufIn : register(u0);
RWStructuredBuffer<uint4> bufOut : register(u1);
@@ -1754,6 +1759,9 @@ void main(int3 inTestIndex : SV_GroupID)
int ONE = ZERO + 1;
int4 testResult = 123;
testResult += oob_array[ZERO+2];
testResult -= oob_array[ONE+1];
gsmInt = testIndex;
gsmStruct[gsmInt].a = inTestIndex;
if (testIndex == 0)
@@ -2701,8 +2709,9 @@ void main(uint3 inDTID : SV_DispatchThreadID, uint3 inGID : SV_GroupThreadID, ui
ID3D12RootSignaturePtr sigCompute = MakeSig({
uavParam(D3D12_SHADER_VISIBILITY_ALL, 0, 0),
uavParam(D3D12_SHADER_VISIBILITY_ALL, 0, 1),
constParam(D3D12_SHADER_VISIBILITY_ALL, 0, 0, 4),
constParam(D3D12_SHADER_VISIBILITY_ALL, 0, 0, 8),
constParam(D3D12_SHADER_VISIBILITY_ALL, 0, 1, 12),
constParam(D3D12_SHADER_VISIBILITY_ALL, 0, 2, 12),
tableParam(D3D12_SHADER_VISIBILITY_ALL, D3D12_DESCRIPTOR_RANGE_TYPE_UAV, 0, 2, 1, 3),
});
@@ -3046,7 +3055,19 @@ void main(uint3 inDTID : SV_DispatchThreadID, uint3 inGID : SV_GroupThreadID, ui
cmd->SetComputeRoot32BitConstant(2, 8, 3);
cmd->SetComputeRoot32BitConstant(3, 10, 4 + 2); // col1z
cmd->SetComputeRoot32BitConstant(3, 11, 8 + 3); // col2w
cmd->SetComputeRootDescriptorTable(4, m_CBVUAVSRV->GetGPUDescriptorHandleForHeapStart());
cmd->SetComputeRoot32BitConstant(4, 12, 0 + 0); // oob_array[0].x
cmd->SetComputeRoot32BitConstant(4, 13, 0 + 1); // oob_array[0].y
cmd->SetComputeRoot32BitConstant(4, 14, 0 + 2); // oob_array[0].z
cmd->SetComputeRoot32BitConstant(4, 15, 0 + 3); // oob_array[0].w
cmd->SetComputeRoot32BitConstant(4, 16, 4 + 0); // oob_array[1].x
cmd->SetComputeRoot32BitConstant(4, 17, 4 + 1); // oob_array[1].y
cmd->SetComputeRoot32BitConstant(4, 18, 4 + 2); // oob_array[1].z
cmd->SetComputeRoot32BitConstant(4, 19, 4 + 3); // oob_array[1].w
cmd->SetComputeRoot32BitConstant(4, 20, 8 + 0); // oob_array[2].x
cmd->SetComputeRoot32BitConstant(4, 21, 8 + 1); // oob_array[2].y
cmd->SetComputeRoot32BitConstant(4, 22, 8 + 2); // oob_array[2].z
cmd->SetComputeRoot32BitConstant(4, 23, 8 + 3); // oob_array[2].w
cmd->SetComputeRootDescriptorTable(5, m_CBVUAVSRV->GetGPUDescriptorHandleForHeapStart());
cmd->SetPipelineState(computePSOs[i]);
setMarker(cmd, computeSMs[i]);