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[d3d9] Implment fixed-function clipping

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Philip Rebohle 2020-02-09 20:23:06 +01:00 committed by Philip Rebohle
parent ba8dad3958
commit bf03fd8732
1 changed files with 73 additions and 0 deletions
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73
src/d3d9/d3d9_fixed_function.cpp
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@ -580,6 +580,8 @@ namespace dxvk {
void emitPsSharedConstants();
void emitVsClipping();
void alphaTestPS();
bool isVS() { return m_programType == DxsoProgramType::VertexShader; }
@ -1158,6 +1160,8 @@ namespace dxvk {
uint32_t pointSize = m_module.opFClamp(m_floatType, pointInfo.defaultValue, pointInfo.min, pointInfo.max);
m_module.opStore(m_vs.out.POINTSIZE, pointSize);
emitVsClipping();
}
@ -2101,6 +2105,75 @@ namespace dxvk {
}
void D3D9FFShaderCompiler::emitVsClipping() {
uint32_t clipPlaneCountId = m_module.constu32(caps::MaxClipPlanes);
uint32_t floatType = m_module.defFloatType(32);
uint32_t vec4Type = m_module.defVectorType(floatType, 4);
// Declare uniform buffer containing clip planes
uint32_t clipPlaneArray = m_module.defArrayTypeUnique(vec4Type, clipPlaneCountId);
uint32_t clipPlaneStruct = m_module.defStructTypeUnique(1, &clipPlaneArray);
uint32_t clipPlaneBlock = m_module.newVar(
m_module.defPointerType(clipPlaneStruct, spv::StorageClassUniform),
spv::StorageClassUniform);
m_module.decorateArrayStride (clipPlaneArray, 16);
m_module.setDebugName (clipPlaneStruct, "clip_info_t");
m_module.setDebugMemberName (clipPlaneStruct, 0, "clip_planes");
m_module.decorate (clipPlaneStruct, spv::DecorationBlock);
m_module.memberDecorateOffset (clipPlaneStruct, 0, 0);
uint32_t bindingId = computeResourceSlotId(
DxsoProgramType::VertexShader,
DxsoBindingType::ConstantBuffer,
DxsoConstantBuffers::VSClipPlanes);
m_module.setDebugName (clipPlaneBlock, "clip_info");
m_module.decorateDescriptorSet(clipPlaneBlock, 0);
m_module.decorateBinding (clipPlaneBlock, bindingId);
DxvkResourceSlot resource;
resource.slot = bindingId;
resource.type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
resource.view = VK_IMAGE_VIEW_TYPE_MAX_ENUM;
resource.access = VK_ACCESS_UNIFORM_READ_BIT;
m_resourceSlots.push_back(resource);
// Declare output array for clip distances
uint32_t clipDistArray = m_module.newVar(
m_module.defPointerType(
m_module.defArrayType(floatType, clipPlaneCountId),
spv::StorageClassOutput),
spv::StorageClassOutput);
m_module.decorateBuiltIn(clipDistArray, spv::BuiltInClipDistance);
m_entryPointInterfaces.push_back(clipDistArray);
// Compute clip distances
for (uint32_t i = 0; i < caps::MaxClipPlanes; i++) {
std::array<uint32_t, 2> blockMembers = {{
m_module.constu32(0),
m_module.constu32(i),
}};
uint32_t planeId = m_module.opLoad(vec4Type,
m_module.opAccessChain(
m_module.defPointerType(vec4Type, spv::StorageClassUniform),
clipPlaneBlock, blockMembers.size(), blockMembers.data()));
uint32_t distId = m_module.opDot(floatType, m_vs.in.POSITION, planeId);
m_module.opStore(
m_module.opAccessChain(
m_module.defPointerType(floatType, spv::StorageClassOutput),
clipDistArray, 1, &blockMembers[1]),
distId);
}
}
void D3D9FFShaderCompiler::alphaTestPS() {
// Alpha testing
uint32_t boolType = m_module.defBoolType();