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HLSL: Accept SV_Cull/ClipDistanceN, by refactoring the way semantics are mapped.

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This commit is contained in:
John Kessenich
2017-03-09 14:37:32 -07:00
parent 229a6f7f7b
commit 6e1d50a7a2
13 changed files with 754 additions and 114 deletions
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85
hlsl/hlslScanContext.cpp
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@@ -47,7 +47,6 @@
#include "../glslang/MachineIndependent/ParseHelper.h"
#include "hlslScanContext.h"
#include "hlslTokens.h"
//#include "Scan.h"
// preprocessor includes
#include "../glslang/MachineIndependent/preprocessor/PpContext.h"
@@ -82,6 +81,7 @@ struct str_hash
// After a single process-level initialization, this is read only and thread safe
std::unordered_map<const char*, glslang::EHlslTokenClass, str_hash, str_eq>* KeywordMap = nullptr;
std::unordered_set<const char*, str_hash, str_eq>* ReservedSet = nullptr;
std::unordered_map<const char*, glslang::TBuiltInVariable, str_hash, str_eq>* SemanticMap = nullptr;
};
@@ -381,6 +381,73 @@ void HlslScanContext::fillInKeywordMap()
ReservedSet->insert("unsigned");
ReservedSet->insert("using");
ReservedSet->insert("virtual");
SemanticMap = new std::unordered_map<const char*, glslang::TBuiltInVariable, str_hash, str_eq>;
// in DX9, all outputs had to have a semantic associated with them, that was either consumed
// by the system or was a specific register assignment
// in DX10+, only semantics with the SV_ prefix have any meaning beyond decoration
// Fxc will only accept DX9 style semantics in compat mode
// Also, in DX10 if a SV value is present as the input of a stage, but isn't appropriate for that
// stage, it would just be ignored as it is likely there as part of an output struct from one stage
// to the next
bool bParseDX9 = false;
if (bParseDX9) {
(*SemanticMap)["PSIZE"] = EbvPointSize;
(*SemanticMap)["FOG"] = EbvFogFragCoord;
(*SemanticMap)["DEPTH"] = EbvFragDepth;
(*SemanticMap)["VFACE"] = EbvFace;
(*SemanticMap)["VPOS"] = EbvFragCoord;
}
(*SemanticMap)["SV_POSITION"] = EbvPosition;
(*SemanticMap)["SV_CLIPDISTANCE"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE0"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE1"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE2"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE3"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE4"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE5"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE6"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE7"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE8"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE9"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE10"] = EbvClipDistance;
(*SemanticMap)["SV_CLIPDISTANCE11"] = EbvClipDistance;
(*SemanticMap)["SV_CULLDISTANCE"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE0"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE1"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE2"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE3"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE4"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE5"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE6"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE7"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE8"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE9"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE10"] = EbvCullDistance;
(*SemanticMap)["SV_CULLDISTANCE11"] = EbvCullDistance;
(*SemanticMap)["SV_VERTEXID"] = EbvVertexIndex;
(*SemanticMap)["SV_VIEWPORTARRAYINDEX"] = EbvViewportIndex;
(*SemanticMap)["SV_TESSFACTOR"] = EbvTessLevelOuter;
(*SemanticMap)["SV_SAMPLEINDEX"] = EbvSampleId;
(*SemanticMap)["SV_RENDERTARGETARRAYINDEX"] = EbvLayer;
(*SemanticMap)["SV_PRIMITIVEID"] = EbvPrimitiveId;
(*SemanticMap)["SV_OUTPUTCONTROLPOINTID"] = EbvInvocationId;
(*SemanticMap)["SV_ISFRONTFACE"] = EbvFace;
(*SemanticMap)["SV_INSTANCEID"] = EbvInstanceIndex;
(*SemanticMap)["SV_INSIDETESSFACTOR"] = EbvTessLevelInner;
(*SemanticMap)["SV_GSINSTANCEID"] = EbvInvocationId;
(*SemanticMap)["SV_DISPATCHTHREADID"] = EbvGlobalInvocationId;
(*SemanticMap)["SV_GROUPTHREADID"] = EbvLocalInvocationId;
(*SemanticMap)["SV_GROUPINDEX"] = EbvLocalInvocationIndex;
(*SemanticMap)["SV_GROUPID"] = EbvWorkGroupId;
(*SemanticMap)["SV_DOMAINLOCATION"] = EbvTessCoord;
(*SemanticMap)["SV_DEPTH"] = EbvFragDepth;
(*SemanticMap)["SV_COVERAGE"] = EbvSampleMask;
(*SemanticMap)["SV_DEPTHGREATEREQUAL"] = EbvFragDepthGreater;
(*SemanticMap)["SV_DEPTHLESSEQUAL"] = EbvFragDepthLesser;
(*SemanticMap)["SV_STENCILREF"] = EbvStencilRef;
}
void HlslScanContext::deleteKeywordMap()
@@ -389,15 +456,29 @@ void HlslScanContext::deleteKeywordMap()
KeywordMap = nullptr;
delete ReservedSet;
ReservedSet = nullptr;
delete SemanticMap;
SemanticMap = nullptr;
}
// Wrapper for tokenizeClass()"] = to get everything inside the token.
// Wrapper for tokenizeClass() to get everything inside the token.
void HlslScanContext::tokenize(HlslToken& token)
{
EHlslTokenClass tokenClass = tokenizeClass(token);
token.tokenClass = tokenClass;
}
glslang::TBuiltInVariable HlslScanContext::mapSemantic(const TString& semantic)
{
TString semanticUpperCase = semantic;
std::transform(semanticUpperCase.begin(), semanticUpperCase.end(), semanticUpperCase.begin(), ::toupper);
auto it = SemanticMap->find(semanticUpperCase.c_str());
if (it != SemanticMap->end())
return it->second;
else
return glslang::EbvNone;
}
//
// Fill in token information for the next token, except for the token class.
// Returns the enum value of the token class of the next token found.