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glslang: Formally track all built-in variables, right from the beginning, to enable avoiding all textual compares at any subsequent stage in the stack. (To be used in future check ins.)

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31224 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2015-05-18 16:45:49 +00:00
parent ca3457f1a7
commit dff18a2be0
105 changed files with 1262 additions and 975 deletions
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134
glslang/Include/BaseTypes.h
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@ -66,8 +66,8 @@ enum TStorageQualifier {
EvqTemporary, // For temporaries (within a function), read/write
EvqGlobal, // For globals read/write
EvqConst, // User-defined constant values, will be semantically constant and constant folded
EvqVaryingIn, // pipeline input, read only
EvqVaryingOut, // pipeline ouput, read/write
EvqVaryingIn, // pipeline input, read only, also supercategory for all built-ins not included in this enum (see TBuiltIn)
EvqVaryingOut, // pipeline ouput, read/write, also supercategory for all built-ins not included in this enum (see TBuiltIn)
EvqUniform, // read only, shared with app
EvqBuffer, // read/write, shared with app
EvqShared, // compute shader's read/write 'shared' qualifier
@ -97,7 +97,78 @@ enum TStorageQualifier {
EvqFragDepth,
// end of list
EvqLast,
EvqLast
};
//
// Subcategories of the TStorageQualifier, simply to give a direct mapping
// between built-in variable names and an numerical value (the enum).
//
// For backward compatibility, there is some redundancy between the
// TStorageQualifier and these. Both should be maintained accurately.
// However, any new built-in variable (and any existing non-redundant one)
// must follow the pattern that the specific built-in is here, and only its
// general qualifier is in TStorageQualifier.
//
// Something like gl_Position, which is sometimes 'in' and sometimes 'out'
// shows up as two different built-in variables in a single stage, but
// only has a single enum in TBuiltInVariable, so both the
// TStorageQualifier and the TBuitinVariable are needed to distinguish
// between them.
//
enum TBuiltInVariable {
EbvNone,
EbvNumWorkGroups,
EbvWorkGroupSize,
EbvWorkGroupId,
EbvLocalInvocationId,
EbvGlobalInvocationId,
EbvLocalInvocationIndex,
EbvVertexId,
EbvInstanceId,
EbvPosition,
EbvPointSize,
EbvClipVertex,
EbvClipDistance,
EbvCullDistance,
EbvNormal,
EbvVertex,
EbvMultiTexCoord0,
EbvMultiTexCoord1,
EbvMultiTexCoord2,
EbvMultiTexCoord3,
EbvMultiTexCoord4,
EbvMultiTexCoord5,
EbvMultiTexCoord6,
EbvMultiTexCoord7,
EbvFrontColor,
EbvBackColor,
EbvFrontSecondaryColor,
EbvBackSecondaryColor,
EbvTexCoord,
EbvFogFragCoord,
EbvInvocationId,
EbvPrimitiveId,
EbvLayer,
EbvViewportIndex,
EbvPatchVertices,
EbvTessLevelOuter,
EbvTessLevelInner,
EbvTessCoord,
EbvColor,
EbvSecondaryColor,
EbvFace,
EbvFragCoord,
EbvPointCoord,
EbvFragColor,
EbvFragData,
EbvFragDepth,
EbvSampleId,
EbvSamplePosition,
EbvSampleMask,
EbvHelperInvocation,
EbvLast
};
// These will show up in error messages
@ -130,6 +201,63 @@ __inline const char* GetStorageQualifierString(TStorageQualifier q)
}
}
__inline const char* GetBuiltInVariableString(TBuiltInVariable v)
{
switch (v) {
case EbvNone: return "";
case EbvNumWorkGroups: return "NumWorkGroups";
case EbvWorkGroupSize: return "WorkGroupSize";
case EbvWorkGroupId: return "WorkGroupID";
case EbvLocalInvocationId: return "LocalInvocationID";
case EbvGlobalInvocationId: return "GlobalInvocationID";
case EbvLocalInvocationIndex: return "LocalInvocationIndex";
case EbvVertexId: return "VertexId";
case EbvInstanceId: return "InstanceId";
case EbvPosition: return "Position";
case EbvPointSize: return "PointSize";
case EbvClipVertex: return "ClipVertex";
case EbvClipDistance: return "ClipDistance";
case EbvCullDistance: return "CullDistance";
case EbvNormal: return "Normal";
case EbvVertex: return "Vertex";
case EbvMultiTexCoord0: return "MultiTexCoord0";
case EbvMultiTexCoord1: return "MultiTexCoord1";
case EbvMultiTexCoord2: return "MultiTexCoord2";
case EbvMultiTexCoord3: return "MultiTexCoord3";
case EbvMultiTexCoord4: return "MultiTexCoord4";
case EbvMultiTexCoord5: return "MultiTexCoord5";
case EbvMultiTexCoord6: return "MultiTexCoord6";
case EbvMultiTexCoord7: return "MultiTexCoord7";
case EbvFrontColor: return "FrontColor";
case EbvBackColor: return "BackColor";
case EbvFrontSecondaryColor: return "FrontSecondaryColor";
case EbvBackSecondaryColor: return "BackSecondaryColor";
case EbvTexCoord: return "TexCoord";
case EbvFogFragCoord: return "FogFragCoord";
case EbvInvocationId: return "InvocationID";
case EbvPrimitiveId: return "PrimitiveID";
case EbvLayer: return "Layer";
case EbvViewportIndex: return "ViewportIndex";
case EbvPatchVertices: return "PatchVertices";
case EbvTessLevelOuter: return "TessLevelOuter";
case EbvTessLevelInner: return "TessLevelInner";
case EbvTessCoord: return "TessCoord";
case EbvColor: return "Color";
case EbvSecondaryColor: return "SecondaryColor";
case EbvFace: return "Face";
case EbvFragCoord: return "FragCoord";
case EbvPointCoord: return "PointCoord";
case EbvFragColor: return "FragColor";
case EbvFragData: return "FragData";
case EbvFragDepth: return "FragDepth";
case EbvSampleId: return "SampleId";
case EbvSamplePosition: return "SamplePosition";
case EbvSampleMask: return "SampleMaskIn";
case EbvHelperInvocation: return "HelperInvocation";
default: return "unknown built-in variable";
}
}
// In this enum, order matters; users can assume higher precision is a bigger value
// and EpqNone is 0.
enum TPrecisionQualifier {