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Add implementation of SPV_EXT_fragment_fully_covered

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This implementation uses the GLSL extension
GL_NV_conservative_raster_underestimation to generate the new SPIR-V
FullyCoveredEXT built in.
This commit is contained in:
Piers Daniell 2017-12-13 13:07:22 -07:00 • committed by John Kessenich
parent e9e0cb60ec
commit 1c5443c693
11 changed files with 116 additions and 1 deletions
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14
glslang/MachineIndependent/Initialize.cpp
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@ -3963,6 +3963,13 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
"in vec3 gl_BaryCoordPullModelAMD;"
);
#endif
#ifdef NV_EXTENSIONS
if (version >= 430)
stageBuiltins[EShLangFragment].append(
"in bool gl_FragFullyCoveredNV;"
);
#endif
} else {
// ES profile
@ -5858,6 +5865,13 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
}
#endif
#ifdef NV_EXTENSIONS
if (profile != EEsProfile && version >= 430) {
symbolTable.setVariableExtensions("gl_FragFullyCoveredNV", 1, &E_GL_NV_conservative_raster_underestimation);
BuiltInVariable("gl_FragFullyCoveredNV", EbvFragFullyCoveredNV, symbolTable);
}
#endif
symbolTable.setVariableExtensions("gl_FragDepthEXT", 1, &E_GL_EXT_frag_depth);
if (profile == EEsProfile && version < 320) {