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Merge pull request #521 from yavn/frag-shader-primitive-id-capability

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SPV: PrimitiveId in frag shader will emit OpCapability
This commit is contained in:
John Kessenich 2016-10-01 11:38:18 -06:00 committed by GitHub
commit 074ced3e00
3 changed files with 21 additions and 3 deletions
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8
SPIRV/GlslangToSpv.cpp
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@ -499,11 +499,17 @@ spv::BuiltIn TGlslangToSpvTraverser::TranslateBuiltInDecoration(glslang::TBuiltI
case glslang::EbvInstanceIndex: return spv::BuiltInInstanceIndex;
case glslang::EbvBaseVertex:
case glslang::EbvBaseInstance:
case glslang::EbvDrawId:
// TODO: Add SPIR-V builtin ID.
logger->missingFunctionality("shader draw parameters");
return spv::BuiltInMax;
case glslang::EbvPrimitiveId: return spv::BuiltInPrimitiveId;
case glslang::EbvPrimitiveId:
if (glslangIntermediate->getStage() == EShLangFragment)
builder.addCapability(spv::CapabilityGeometry);
return spv::BuiltInPrimitiveId;
case glslang::EbvInvocationId: return spv::BuiltInInvocationId;
case glslang::EbvTessLevelInner: return spv::BuiltInTessLevelInner;
case glslang::EbvTessLevelOuter: return spv::BuiltInTessLevelOuter;

14
Test/baseResults/spv.400.frag.out
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@ -7,16 +7,17 @@ Linked fragment stage:
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 1114
// Id's are bound by 1118
Capability Shader
Capability Geometry
Capability Float64
Capability ImageGatherExtended
Capability ClipDistance
Capability SampledRect
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 13 1027 1033 1038 1050 1076 1097 1099 1105 1107
EntryPoint Fragment 4 "main" 13 1027 1033 1038 1050 1076 1097 1099 1105 1107 1116
ExecutionMode 4 OriginUpperLeft
Source GLSL 400
SourceExtension "GL_ARB_separate_shader_objects"
@ -55,6 +56,8 @@ Linked fragment stage:
Name 1099 "vl2"
Name 1105 "uo"
Name 1107 "u"
Name 1115 "id"
Name 1116 "gl_PrimitiveID"
Decorate 17(u2drs) DescriptorSet 0
Decorate 1025(arrayedSampler) DescriptorSet 0
Decorate 1027(i) Flat
@ -64,6 +67,8 @@ Linked fragment stage:
Decorate 1097(gl_FragCoord) BuiltIn FragCoord
Decorate 1099(vl2) Location 6
Decorate 1107(u) Flat
Decorate 1116(gl_PrimitiveID) Flat
Decorate 1116(gl_PrimitiveID) BuiltIn PrimitiveId
2: TypeVoid
3: TypeFunction 2
10: TypeFloat 32
@ -185,9 +190,12 @@ Linked fragment stage:
1105(uo): 1104(ptr) Variable Output
1106: TypePointer Input 32(int)
1107(u): 1106(ptr) Variable Input
1114: TypePointer Function 23(int)
1116(gl_PrimitiveID): 1026(ptr) Variable Input
4(main): 2 Function None 3
5: Label
1019(v): 1018(ptr) Variable Function
1115(id): 1114(ptr) Variable Function
1028: 23(int) Load 1027(i)
1030: 1029(ptr) AccessChain 1025(arrayedSampler) 1028
1031: 1021 Load 1030
@ -242,6 +250,8 @@ Linked fragment stage:
Store 1105(uo) 1111
1112: 2 FunctionCall 6(foo23()
1113: 2 FunctionCall 8(doubles()
1117: 23(int) Load 1116(gl_PrimitiveID)
Store 1115(id) 1117
Return
FunctionEnd
6(foo23(): 2 Function None 3

2
Test/spv.400.frag
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@ -259,5 +259,7 @@ void main()
uo = u % i;
foo23();
doubles();
int id = gl_PrimitiveID;
}