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Add support for SPV_NV_sample_mask_override_coverage

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This commit is contained in:
chaoc 2016-12-19 16:29:34 -08:00
parent 7583ed73ef
commit 0ad6a4e60d
14 changed files with 215 additions and 1 deletions
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20
glslang/MachineIndependent/ParseHelper.cpp
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@ -3304,6 +3304,9 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
identifier == "gl_BackSecondaryColor" ||
identifier == "gl_SecondaryColor" ||
(identifier == "gl_Color" && language == EShLangFragment) ||
#ifdef NV_EXTENSIONS
identifier == "gl_SampleMask" ||
#endif
identifier == "gl_TexCoord") {
// Find the existing symbol, if any.
@ -3381,8 +3384,16 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
if (! intermediate.setDepth(publicType.layoutDepth))
error(loc, "all redeclarations must use the same depth layout on", "redeclaration", symbol->getName().c_str());
}
}
#ifdef NV_EXTENSIONS
else if (identifier == "gl_SampleMask") {
if (!publicType.layoutOverrideCoverage) {
error(loc, "redeclaration only allowed for override_coverage layout", "redeclaration", symbol->getName().c_str());
}
intermediate.setLayoutOverrideCoverage();
}
#endif
// TODO: semantics quality: separate smooth from nothing declared, then use IsInterpolation for several tests above
return symbol;
@ -4005,6 +4016,13 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
error(loc, "unknown blend equation", "blend_support", "");
return;
}
#ifdef NV_EXTENSIONS
if (id == "override_coverage") {
requireExtensions(loc, 1, &E_GL_NV_sample_mask_override_coverage, "sample mask override coverage");
publicType.shaderQualifiers.layoutOverrideCoverage = true;
return;
}
#endif
}
error(loc, "unrecognized layout identifier, or qualifier requires assignment (e.g., binding = 4)", id.c_str(), "");
}