bool TCompiler::InitBuiltInSymbolTable(const ShBuiltInResources &resources)
{
compileResources = resources;
setResourceString();
assert(symbolTable.isEmpty());
symbolTable.push(); // COMMON_BUILTINS
symbolTable.push(); // ESSL1_BUILTINS
symbolTable.push(); // ESSL3_BUILTINS
TPublicType integer;
integer.type = EbtInt;
integer.primarySize = 1;
integer.secondarySize = 1;
integer.array = false;
TPublicType floatingPoint;
floatingPoint.type = EbtFloat;
floatingPoint.primarySize = 1;
floatingPoint.secondarySize = 1;
floatingPoint.array = false;
TPublicType sampler;
sampler.primarySize = 1;
sampler.secondarySize = 1;
sampler.array = false;
switch(shaderType)
{
case GL_FRAGMENT_SHADER:
symbolTable.setDefaultPrecision(integer, EbpMedium);
break;
case GL_VERTEX_SHADER:
symbolTable.setDefaultPrecision(integer, EbpHigh);
symbolTable.setDefaultPrecision(floatingPoint, EbpHigh);
break;
default:
assert(false && "Language not supported");
}
// We set defaults for all the sampler types, even those that are
// only available if an extension exists.
for (int samplerType = EbtGuardSamplerBegin + 1;
samplerType < EbtGuardSamplerEnd; ++samplerType)
{
sampler.type = static_cast<TBasicType>(samplerType);
symbolTable.setDefaultPrecision(sampler, EbpLow);
}
InsertBuiltInFunctions(shaderType, shaderSpec, resources, symbolTable);
IdentifyBuiltIns(shaderType, shaderSpec, resources, symbolTable);
return true;
}
bool TCompiler::InitBuiltInSymbolTable(const ShBuiltInResources &resources)
{
compileResources = resources;
setResourceString();
assert(symbolTable.isEmpty());
symbolTable.push(); // COMMON_BUILTINS
symbolTable.push(); // ESSL1_BUILTINS
symbolTable.push(); // ESSL3_BUILTINS
symbolTable.push(); // ESSL3_1_BUILTINS
TPublicType integer;
integer.type = EbtInt;
integer.primarySize = 1;
integer.secondarySize = 1;
integer.array = false;
TPublicType floatingPoint;
floatingPoint.type = EbtFloat;
floatingPoint.primarySize = 1;
floatingPoint.secondarySize = 1;
floatingPoint.array = false;
switch(shaderType)
{
case GL_FRAGMENT_SHADER:
symbolTable.setDefaultPrecision(integer, EbpMedium);
break;
case GL_VERTEX_SHADER:
symbolTable.setDefaultPrecision(integer, EbpHigh);
symbolTable.setDefaultPrecision(floatingPoint, EbpHigh);
break;
default:
assert(false && "Language not supported");
}
// Set defaults for sampler types that have default precision, even those that are
// only available if an extension exists.
// New sampler types in ESSL3 don't have default precision. ESSL1 types do.
initSamplerDefaultPrecision(EbtSampler2D);
initSamplerDefaultPrecision(EbtSamplerCube);
// SamplerExternalOES is specified in the extension to have default precision.
initSamplerDefaultPrecision(EbtSamplerExternalOES);
// It isn't specified whether Sampler2DRect has default precision.
initSamplerDefaultPrecision(EbtSampler2DRect);
InsertBuiltInFunctions(shaderType, shaderSpec, resources, symbolTable);
IdentifyBuiltIns(shaderType, shaderSpec, resources, symbolTable);
return true;
}