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[dxso] Handle multiplication by zero when emitting clip distances

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Philip Rebohle 2021-09-14 15:37:56 +02:00 committed by Joshie
parent 337360cdc6
commit 11f8b8ba44
1 changed files with 15 additions and 14 deletions
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29
src/dxso/dxso_compiler.cpp
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@ -3653,26 +3653,27 @@ void DxsoCompiler::emitControlFlowGenericLoop(
} }
// Compute clip distances // Compute clip distances
uint32_t positionId = m_module.opLoad(vec4Type, positionPtr); DxsoRegisterValue position;
position.type = { DxsoScalarType::Float32, 4 };
position.id = m_module.opLoad(vec4Type, positionPtr);
for (uint32_t i = 0; i < caps::MaxClipPlanes; i++) { for (uint32_t i = 0; i < caps::MaxClipPlanes; i++) {
std::array<uint32_t, 2> blockMembers = {{ std::array<uint32_t, 2> blockMembers = {{
m_module.constu32(0), m_module.constu32(0),
m_module.constu32(i), m_module.constu32(i),
}}; }};
uint32_t planeId = m_module.opLoad(vec4Type, DxsoRegisterValue plane;
m_module.opAccessChain( plane.type = { DxsoScalarType::Float32, 4 };
m_module.defPointerType(vec4Type, spv::StorageClassUniform), plane.id = m_module.opLoad(vec4Type, m_module.opAccessChain(
clipPlaneBlock, blockMembers.size(), blockMembers.data())); m_module.defPointerType(vec4Type, spv::StorageClassUniform),
clipPlaneBlock, blockMembers.size(), blockMembers.data()));
uint32_t distId = m_module.opDot(floatType, positionId, planeId);
DxsoRegisterValue dist = emitDot(position, plane);
m_module.opStore(
m_module.opAccessChain( m_module.opStore(m_module.opAccessChain(
m_module.defPointerType(floatType, spv::StorageClassOutput), m_module.defPointerType(floatType, spv::StorageClassOutput),
clipDistArray, 1, &blockMembers[1]), clipDistArray, 1, &blockMembers[1]), dist.id);
distId);
} }
} }