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//
// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#include "compiler/translator/OutputGLSL.h"
TOutputGLSL::TOutputGLSL(TInfoSinkBase& objSink,
ShArrayIndexClampingStrategy clampingStrategy,
ShHashFunction64 hashFunction,
NameMap& nameMap,
TSymbolTable& symbolTable,
int shaderVersion,
ShShaderOutput output)
: TOutputGLSLBase(objSink,
clampingStrategy,
hashFunction,
nameMap,
symbolTable,
shaderVersion,
output)
{
}
bool TOutputGLSL::writeVariablePrecision(TPrecision)
{
return false;
}
void TOutputGLSL::visitSymbol(TIntermSymbol *node)
{
TInfoSinkBase& out = objSink();
const TString &symbol = node->getSymbol();
if (symbol == "gl_FragDepthEXT")
{
out << "gl_FragDepth";
}
else if (symbol == "gl_FragColor" && IsGLSL130OrNewer(getShaderOutput()))
{
out << "webgl_FragColor";
}
else if (symbol == "gl_FragData" && IsGLSL130OrNewer(getShaderOutput()))
{
out << "webgl_FragData";
}
else if (symbol == "gl_SecondaryFragColorEXT")
{
out << "angle_SecondaryFragColor";
}
else if (symbol == "gl_SecondaryFragDataEXT")
{
out << "angle_SecondaryFragData";
}
else
{
TOutputGLSLBase::visitSymbol(node);
}
}
TString TOutputGLSL::translateTextureFunction(TString &name)
{
static const char *simpleRename[] = {
"texture2DLodEXT", "texture2DLod",
"texture2DProjLodEXT", "texture2DProjLod",
"textureCubeLodEXT", "textureCubeLod",
"texture2DGradEXT", "texture2DGradARB",
"texture2DProjGradEXT", "texture2DProjGradARB",
"textureCubeGradEXT", "textureCubeGradARB",
NULL, NULL
};
static const char *legacyToCoreRename[] = {
"texture2D", "texture",
"texture2DProj", "textureProj",
"texture2DLod", "textureLod",
"texture2DProjLod", "textureProjLod",
"texture2DRect", "texture",
"textureCube", "texture",
"textureCubeLod", "textureLod",
// Extensions
"texture2DLodEXT", "textureLod",
"texture2DProjLodEXT", "textureProjLod",
"textureCubeLodEXT", "textureLod",
"texture2DGradEXT", "textureGrad",
"texture2DProjGradEXT", "textureProjGrad",
"textureCubeGradEXT", "textureGrad",
NULL, NULL
};
const char **mapping = (IsGLSL130OrNewer(getShaderOutput())) ?
legacyToCoreRename : simpleRename;
for (int i = 0; mapping[i] != NULL; i += 2)
{
if (name == mapping[i])
{
return mapping[i+1];
}
}
return name;
}
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