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First stab at system value interpretation

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This commit is contained in:
Dan Baker 2016-08-25 11:59:17 -04:00
parent ab89bbe702
commit deec03cfca
1 changed files with 118 additions and 21 deletions
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111
hlsl/hlslParseHelper.cpp
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@ -755,9 +755,25 @@ TIntermAggregate* HlslParseContext::handleFunctionDefinition(const TSourceLoc& l
inEntrypoint = (function.getName() == intermediate.getEntryPoint().c_str());
if (inEntrypoint) {
// parameters are actually shader-level inputs
unsigned int inCount = 0, outCount = 0;
for (int i = 0; i < function.getParamCount(); i++)
{
// Fragment programs do not use ordering for the output layout position, rather it is
// embedded in the semantic
if (function[i].type->getQualifier().isParamOutput() && language != EShLangFragment)
{
if (function[i].type->getQualifier().builtIn == EbvNone)
function[i].type->getQualifier().layoutLocation = outCount++;
function[i].type->getQualifier().storage = EvqVaryingOut;
}
else
{
if (function[i].type->getQualifier().builtIn == EbvNone)
function[i].type->getQualifier().layoutLocation = inCount++;
function[i].type->getQualifier().storage = EvqVaryingIn;
}
}
}
//
// New symbol table scope for body of function plus its arguments
@ -2261,10 +2277,19 @@ void HlslParseContext::handleSemantic(TType& type, const TString& semantic)
// The following sketches what needs to be done, but can't be right
// without taking into account stage and input/output.
// 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)
{
if (semantic == "PSIZE")
type.getQualifier().builtIn = EbvPointSize;
else if (semantic == "POSITION")
type.getQualifier().builtIn = EbvPosition;
else if (semantic == "FOG")
type.getQualifier().builtIn = EbvFogFragCoord;
else if (semantic == "DEPTH" || semantic == "SV_Depth")
@ -2273,14 +2298,86 @@ void HlslParseContext::handleSemantic(TType& type, const TString& semantic)
type.getQualifier().builtIn = EbvFace;
else if (semantic == "VPOS" || semantic == "SV_Position")
type.getQualifier().builtIn = EbvFragCoord;
else if (semantic == "SV_ClipDistance")
}
TString semanticUpperCase = semantic;
std::transform(semanticUpperCase.begin(), semanticUpperCase.end(), semanticUpperCase.begin(), ::toupper);
{
//SV Position has a different meaning in vertex vs fragment
if (semanticUpperCase == "SV_POSITION" && language != EShLangFragment)
type.getQualifier().builtIn = EbvPosition;
else if (semanticUpperCase == "SV_POSITION" && language == EShLangFragment)
type.getQualifier().builtIn = EbvFragCoord;
else if (semanticUpperCase == "SV_CLIPDISTANCE")
type.getQualifier().builtIn = EbvClipDistance;
else if (semantic == "SV_CullDistance")
else if (semanticUpperCase == "SV_CULLDISTANCE")
type.getQualifier().builtIn = EbvCullDistance;
else if (semantic == "SV_VertexID")
type.getQualifier().builtIn = EbvVertexId;
else if (semantic == "SV_ViewportArrayIndex")
else if (semanticUpperCase == "SV_VERTEXID")
type.getQualifier().builtIn = EbvVertexIndex;
else if (semanticUpperCase == "SV_VIEWPORTARRAYINDEX")
type.getQualifier().builtIn = EbvViewportIndex;
else if (semanticUpperCase == "SV_TESSFACTOR")
type.getQualifier().builtIn = EbvTessLevelOuter;
//Targets are defined 0-7
else if (semanticUpperCase == "SV_TARGET") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 0; }
else if (semanticUpperCase == "SV_TARGET0") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 0; }
else if (semanticUpperCase == "SV_TARGET1") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 1; }
else if (semanticUpperCase == "SV_TARGET2") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 2; }
else if (semanticUpperCase == "SV_TARGET3") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 3; }
else if (semanticUpperCase == "SV_TARGET4") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 4; }
else if (semanticUpperCase == "SV_TARGET5") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 5; }
else if (semanticUpperCase == "SV_TARGET6") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 6; }
else if (semanticUpperCase == "SV_TARGET7") {
type.getQualifier().builtIn = EbvNone; type.getQualifier().layoutLocation = 7; }
else if (semanticUpperCase == "SV_SAMPLEINDEX")
type.getQualifier().builtIn = EbvSampleId;
else if (semanticUpperCase == "SV_RENDERTARGETARRAYINDEX")
type.getQualifier().builtIn = EbvLayer;
else if (semanticUpperCase == "SV_PRIMITIVEID")
type.getQualifier().builtIn = EbvPrimitiveId;
else if (semanticUpperCase == "SV_OUTPUTCONTROLPOINTID")
type.getQualifier().builtIn = EbvInvocationId;
else if (semanticUpperCase == "SV_ISFRONTFACE")
type.getQualifier().builtIn = EbvFace;
else if (semanticUpperCase == "SV_INSTANCEID")
type.getQualifier().builtIn = EbvInstanceIndex;
else if (semanticUpperCase == "SV_INSIDETESSFACTOR")
type.getQualifier().builtIn = EbvTessLevelInner;
else if (semanticUpperCase == "SV_GSINSTANCEID")
type.getQualifier().builtIn = EbvInvocationId;
else if (semanticUpperCase == "SV_GROUPTHREADID")
type.getQualifier().builtIn = EbvLocalInvocationId;
else if (semanticUpperCase == "SV_GROUPID")
type.getQualifier().builtIn = EbvWorkGroupId;
else if (semanticUpperCase == "SV_DOMAINLOCATION")
type.getQualifier().builtIn = EbvTessCoord;
else if (semanticUpperCase == "SV_DEPTH")
type.getQualifier().builtIn = EbvFragDepth;
//not supported or not trivial
//else if( semanticUpperCase == "SV_STENCILREF")
// type.getQualifier().builtIn = gl_FragStencilRef
//else if( semanticUpperCase == "SV_DEPTHGREATEREQUAL")
// type.getQualifier().builtIn = ??
//else if( semanticUpperCase == "SV_DEPTHLESSEQUAL")
// type.getQualifier().builtIn = ??
//else if( semanticUpperCase == "SV_COVERAGE")
// type.getQualifier().builtIn = ??
}
}
//