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Add-support-for-SPV_NV_compute_shader_derivatives

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This commit is contained in:
Chao Chen 2018-09-19 11:40:45 -07:00
parent 9eada4b971
commit beae2251b7
14 changed files with 1257 additions and 154 deletions
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42
glslang/MachineIndependent/ParseHelper.cpp
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@ -4623,6 +4623,18 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
return;
}
}
if (language == EShLangCompute) {
if (id.compare(0, 17, "derivative_group_") == 0) {
requireExtensions(loc, 1, &E_GL_NV_compute_shader_derivatives, "compute shader derivatives");
if (id == "derivative_group_quadsnv") {
publicType.shaderQualifiers.layoutDerivativeGroupQuads = true;
return;
} else if (id == "derivative_group_linearnv") {
publicType.shaderQualifiers.layoutDerivativeGroupLinear = true;
return;
}
}
}
#else
}
#endif
@ -7027,6 +7039,36 @@ void TParseContext::updateStandaloneQualifierDefaults(const TSourceLoc& loc, con
error(loc, "can only apply to 'out'", "blend equation", "");
}
#ifdef NV_EXTENSIONS
if (publicType.shaderQualifiers.layoutDerivativeGroupQuads &&
publicType.shaderQualifiers.layoutDerivativeGroupLinear) {
error(loc, "cannot be both specified", "derivative_group_quadsNV and derivative_group_linearNV", "");
}
if (publicType.shaderQualifiers.layoutDerivativeGroupQuads) {
if (publicType.qualifier.storage == EvqVaryingIn) {
if ((intermediate.getLocalSize(0) & 1) ||
(intermediate.getLocalSize(1) & 1))
error(loc, "requires local_size_x and local_size_y to be multiple of two", "derivative_group_quadsNV", "");
else
intermediate.setLayoutDerivativeMode(LayoutDerivativeGroupQuads);
}
else
error(loc, "can only apply to 'in'", "derivative_group_quadsNV", "");
}
if (publicType.shaderQualifiers.layoutDerivativeGroupLinear) {
if (publicType.qualifier.storage == EvqVaryingIn) {
if((intermediate.getLocalSize(0) *
intermediate.getLocalSize(1) *
intermediate.getLocalSize(2)) % 4 != 0)
error(loc, "requires total group size to be multiple of four", "derivative_group_linearNV", "");
else
intermediate.setLayoutDerivativeMode(LayoutDerivativeGroupLinear);
}
else
error(loc, "can only apply to 'in'", "derivative_group_linearNV", "");
}
#endif
const TQualifier& qualifier = publicType.qualifier;
if (qualifier.isAuxiliary() ||