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[dxbc] Implement SV_ClipDistance and SV_CullDistance

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This commit is contained in:
Philip Rebohle 2018-03-24 11:29:07 +01:00
parent 4ce64bd886
commit 7f7eedac35
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GPG Key ID: C8CC613427A31C99
2 changed files with 202 additions and 5 deletions
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189
src/dxbc/dxbc_compiler.cpp
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@ -585,11 +585,13 @@ namespace dxvk {
m_interfaceSlots.inputSlots |= 1u << regIdx;
} else if (sv != DxbcSystemValue::None) {
// Add a new system value mapping if needed
bool skipSv = sv == DxbcSystemValue::Position
|| sv == DxbcSystemValue::ClipDistance
bool skipSv = sv == DxbcSystemValue::ClipDistance
|| sv == DxbcSystemValue::CullDistance;
if (!skipSv || m_version.type() == DxbcProgramType::PixelShader)
if (m_version.type() != DxbcProgramType::PixelShader)
skipSv = skipSv || sv == DxbcSystemValue::Position;
if (!skipSv)
m_vMappings.push_back({ regIdx, regMask, sv });
}
}
@ -601,8 +603,11 @@ namespace dxvk {
DxbcRegMask regMask,
DxbcSystemValue sv,
DxbcInterpolationMode im) {
// Add a new system value mapping if needed
if (sv != DxbcSystemValue::None)
// Add a new system value mapping if needed. Clip
// and cull distances are handled separately.
if (sv != DxbcSystemValue::None
&& sv != DxbcSystemValue::ClipDistance
&& sv != DxbcSystemValue::CullDistance)
m_oMappings.push_back({ regIdx, regMask, sv });
// Hull shaders don't use standard outputs
@ -1942,6 +1947,8 @@ namespace dxvk {
case DxbcOpcode::Emit:
case DxbcOpcode::EmitStream: {
emitOutputSetup();
emitClipCullStore(DxbcSystemValue::ClipDistance, m_clipDistances);
emitClipCullStore(DxbcSystemValue::CullDistance, m_cullDistances);
m_module.opEmitVertex();
} break;
@ -5165,6 +5172,105 @@ namespace dxvk {
}
void DxbcCompiler::emitClipCullStore(
DxbcSystemValue sv,
uint32_t dstArray) {
uint32_t offset = 0;
if (dstArray == 0)
return;
for (auto e = m_osgn->begin(); e != m_osgn->end(); e++) {
if (e->systemValue == sv) {
DxbcRegisterPointer srcPtr;
srcPtr.type = { DxbcScalarType::Float32, 4 };
srcPtr.id = m_oRegs.at(e->registerId);
DxbcRegisterValue srcValue = emitValueLoad(srcPtr);
for (uint32_t i = 0; i < 4; i++) {
if (e->componentMask[i]) {
uint32_t offsetId = m_module.consti32(offset++);
DxbcRegisterValue component = emitRegisterExtract(
srcValue, DxbcRegMask::select(i));
DxbcRegisterPointer dstPtr;
dstPtr.type = { DxbcScalarType::Float32, 1 };
dstPtr.id = m_module.opAccessChain(
m_module.defPointerType(
getVectorTypeId(dstPtr.type),
spv::StorageClassOutput),
dstArray, 1, &offsetId);
emitValueStore(dstPtr, component,
DxbcRegMask(true, false, false, false));
}
}
}
}
}
void DxbcCompiler::emitClipCullLoad(
DxbcSystemValue sv,
uint32_t srcArray) {
uint32_t offset = 0;
if (srcArray == 0)
return;
for (auto e = m_isgn->begin(); e != m_isgn->end(); e++) {
if (e->systemValue == sv) {
// Load individual components from the source array
uint32_t componentIndex = 0;
std::array<uint32_t, 4> componentIds = {{ 0, 0, 0, 0 }};
for (uint32_t i = 0; i < 4; i++) {
if (e->componentMask[i]) {
uint32_t offsetId = m_module.consti32(offset++);
DxbcRegisterPointer srcPtr;
srcPtr.type = { DxbcScalarType::Float32, 1 };
srcPtr.id = m_module.opAccessChain(
m_module.defPointerType(
getVectorTypeId(srcPtr.type),
spv::StorageClassInput),
srcArray, 1, &offsetId);
componentIds[componentIndex++]
= emitValueLoad(srcPtr).id;
}
}
// Put everything into one vector
DxbcRegisterValue dstValue;
dstValue.type = { DxbcScalarType::Float32, componentIndex };
dstValue.id = componentIds[0];
if (componentIndex > 1) {
dstValue.id = m_module.opCompositeConstruct(
getVectorTypeId(dstValue.type),
componentIndex, componentIds.data());
}
// Store vector to the input array
uint32_t registerId = m_module.consti32(e->registerId);
DxbcRegisterPointer dstInput;
dstInput.type = { DxbcScalarType::Float32, 4 };
dstInput.id = m_module.opAccessChain(
m_module.defPointerType(
getVectorTypeId(dstInput.type),
spv::StorageClassPrivate),
m_vArray, 1, &registerId);
emitValueStore(dstInput, dstValue, e->componentMask);
}
}
}
void DxbcCompiler::emitInit() {
// Set up common capabilities for all shaders
m_module.enableCapability(spv::CapabilityShader);
@ -5221,6 +5327,17 @@ namespace dxvk {
// Standard input array
emitDclInputArray(0);
// Cull/clip distances as outputs
m_clipDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullOut.numClipPlanes,
spv::BuiltInClipDistance,
spv::StorageClassOutput);
m_cullDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullOut.numCullPlanes,
spv::BuiltInCullDistance,
spv::StorageClassOutput);
// Main function of the vertex shader
m_vs.functionId = m_module.allocateId();
m_module.setDebugName(m_vs.functionId, "vs_main");
@ -5265,6 +5382,17 @@ namespace dxvk {
const uint32_t perVertexPointer = m_module.defPointerType(
perVertexStruct, spv::StorageClassOutput);
// Cull/clip distances as outputs
m_clipDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullOut.numClipPlanes,
spv::BuiltInClipDistance,
spv::StorageClassOutput);
m_cullDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullOut.numCullPlanes,
spv::BuiltInCullDistance,
spv::StorageClassOutput);
m_perVertexOut = m_module.newVar(
perVertexPointer, spv::StorageClassOutput);
m_entryPointInterfaces.push_back(m_perVertexOut);
@ -5301,6 +5429,17 @@ namespace dxvk {
m_entryPointInterfaces.push_back(m_perVertexOut);
m_module.setDebugName(m_perVertexOut, "gs_vertex_out");
// Cull/clip distances as outputs
m_clipDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullOut.numClipPlanes,
spv::BuiltInClipDistance,
spv::StorageClassOutput);
m_cullDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullOut.numCullPlanes,
spv::BuiltInCullDistance,
spv::StorageClassOutput);
// Main function of the vertex shader
m_gs.functionId = m_module.allocateId();
m_module.setDebugName(m_gs.functionId, "gs_main");
@ -5349,6 +5488,17 @@ namespace dxvk {
// Standard input array
emitDclInputArray(0);
// Cull/clip distances as inputs
m_clipDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullIn.numClipPlanes,
spv::BuiltInClipDistance,
spv::StorageClassInput);
m_cullDistances = emitDclClipCullDistanceArray(
m_analysis->clipCullIn.numCullPlanes,
spv::BuiltInCullDistance,
spv::StorageClassInput);
// Main function of the pixel shader
m_ps.functionId = m_module.allocateId();
m_module.setDebugName(m_ps.functionId, "ps_main");
@ -5385,6 +5535,8 @@ namespace dxvk {
m_module.defVoidType(),
m_vs.functionId, 0, nullptr);
this->emitOutputSetup();
this->emitClipCullStore(DxbcSystemValue::ClipDistance, m_clipDistances);
this->emitClipCullStore(DxbcSystemValue::CullDistance, m_cullDistances);
this->emitMainFunctionEnd();
}
@ -5427,6 +5579,8 @@ namespace dxvk {
m_module.defVoidType(),
m_ds.functionId, 0, nullptr);
this->emitOutputSetup();
this->emitClipCullStore(DxbcSystemValue::ClipDistance, m_clipDistances);
this->emitClipCullStore(DxbcSystemValue::CullDistance, m_cullDistances);
this->emitMainFunctionEnd();
}
@ -5447,6 +5601,8 @@ namespace dxvk {
void DxbcCompiler::emitPsFinalize() {
this->emitMainFunctionBegin();
this->emitInputSetup();
this->emitClipCullLoad(DxbcSystemValue::ClipDistance, m_clipDistances);
this->emitClipCullLoad(DxbcSystemValue::CullDistance, m_cullDistances);
m_module.opFunctionCall(
m_module.defVoidType(),
m_ps.functionId, 0, nullptr);
@ -5514,6 +5670,29 @@ namespace dxvk {
}
uint32_t DxbcCompiler::emitDclClipCullDistanceArray(
uint32_t length,
spv::BuiltIn builtIn,
spv::StorageClass storageClass) {
if (length == 0)
return 0;
uint32_t t_f32 = m_module.defFloatType(32);
uint32_t t_arr = m_module.defArrayType(t_f32, m_module.constu32(length));
uint32_t t_ptr = m_module.defPointerType(t_arr, storageClass);
uint32_t varId = m_module.newVar(t_ptr, storageClass);
m_module.decorateBuiltIn(varId, builtIn);
m_module.setDebugName(varId,
builtIn == spv::BuiltInClipDistance
? "clip_distances"
: "cull_distances");
m_entryPointInterfaces.push_back(varId);
return varId;
}
DxbcCompilerHsControlPointPhase DxbcCompiler::emitNewHullShaderControlPointPhase() {
uint32_t funTypeId = m_module.defFunctionType(
m_module.defVoidType(), 0, nullptr);

18
src/dxbc/dxbc_compiler.h
View File

@ -392,6 +392,9 @@ namespace dxvk {
// the shader stage, these may be declared as arrays.
uint32_t m_perVertexOut = 0;
uint32_t m_clipDistances = 0;
uint32_t m_cullDistances = 0;
//////////////////////////////////////////////////
// Immediate constant buffer. If defined, this is
// an array of four-component uint32 vectors.
@ -877,6 +880,16 @@ namespace dxvk {
DxbcRegMask mask,
const DxbcRegisterValue& value);
///////////////////////////////
// Special system value stores
void emitClipCullStore(
DxbcSystemValue sv,
uint32_t dstArray);
void emitClipCullLoad(
DxbcSystemValue sv,
uint32_t srcArray);
//////////////////////////////////////
// Common function definition methods
void emitInit();
@ -930,6 +943,11 @@ namespace dxvk {
void emitDclInputArray(
uint32_t vertexCount);
uint32_t emitDclClipCullDistanceArray(
uint32_t length,
spv::BuiltIn builtIn,
spv::StorageClass storageClass);
DxbcCompilerHsControlPointPhase emitNewHullShaderControlPointPhase();
DxbcCompilerHsControlPointPhase emitNewHullShaderPassthroughPhase();