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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/TranslatorESSL.h"
#include "compiler/translator/OutputESSL.h"
#include "angle_gl.h"
TranslatorESSL::TranslatorESSL(sh::GLenum type, ShShaderSpec spec)
: TCompiler(type, spec, SH_ESSL_OUTPUT) {
}
void TranslatorESSL::translate(TIntermNode* root) {
TInfoSinkBase& sink = getInfoSink().obj;
writePragma();
// Write built-in extension behaviors.
writeExtensionBehavior();
// Write emulated built-in functions if needed.
getBuiltInFunctionEmulator().OutputEmulatedFunctionDefinition(
sink, getShaderType() == GL_FRAGMENT_SHADER);
// Write array bounds clamping emulation if needed.
getArrayBoundsClamper().OutputClampingFunctionDefinition(sink);
// Write translated shader.
TOutputESSL outputESSL(sink, getArrayIndexClampingStrategy(), getHashFunction(), getNameMap(), getSymbolTable(), getShaderVersion());
root->traverse(&outputESSL);
}
void TranslatorESSL::writeExtensionBehavior() {
TInfoSinkBase& sink = getInfoSink().obj;
const TExtensionBehavior& extensionBehavior = getExtensionBehavior();
for (TExtensionBehavior::const_iterator iter = extensionBehavior.begin();
iter != extensionBehavior.end(); ++iter) {
if (iter->second != EBhUndefined) {
if (getResources().NV_draw_buffers && iter->first == "GL_EXT_draw_buffers") {
sink << "#extension GL_NV_draw_buffers : "
<< getBehaviorString(iter->second) << "\n";
} else {
sink << "#extension " << iter->first << " : "
<< getBehaviorString(iter->second) << "\n";
}
}
}
}
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