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Front-end: Implement GL_EXT_shader_non_constant_global_initializers.

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This lets ES shaders use non-constant initializers for non-constant globals.
This commit is contained in:
John Kessenich 2016-06-17 12:43:31 -06:00
parent b901ade058
commit 21f1286f57
5 changed files with 48 additions and 6 deletions
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12
glslang/MachineIndependent/ParseHelper.cpp
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@ -5083,11 +5083,13 @@ TIntermNode* TParseContext::executeInitializer(const TSourceLoc& loc, TIntermTyp
// "In declarations of global variables with no storage qualifier or with a const
// qualifier any initializer must be a constant expression."
if (symbolTable.atGlobalLevel() && ! initializer->getType().getQualifier().isConstant()) {
const char* initFeature = "non-constant global initializer";
if (relaxedErrors())
warn(loc, "not allowed in this version", initFeature, "");
else
requireProfile(loc, ~EEsProfile, initFeature);
const char* initFeature = "non-constant global initializer (needs GL_EXT_shader_non_constant_global_initializers)";
if (profile == EEsProfile) {
if (relaxedErrors() && ! extensionTurnedOn(E_GL_EXT_shader_non_constant_global_initializers))
warn(loc, "not allowed in this version", initFeature, "");
else
profileRequires(loc, EEsProfile, 0, E_GL_EXT_shader_non_constant_global_initializers, initFeature);
}
}
}