1 //
2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 #include "compiler/TranslatorGLSL.h"
8
9 #include "compiler/OutputGLSL.h"
10 #include "compiler/VersionGLSL.h"
11
writeVersion(ShShaderType type,TIntermNode * root,TInfoSinkBase & sink)12 static void writeVersion(ShShaderType type, TIntermNode* root,
13 TInfoSinkBase& sink) {
14 TVersionGLSL versionGLSL(type);
15 root->traverse(&versionGLSL);
16 int version = versionGLSL.getVersion();
17 // We need to write version directive only if it is greater than 110.
18 // If there is no version directive in the shader, 110 is implied.
19 if (version > 110) {
20 sink << "#version " << version << "\n";
21 }
22 }
23
TranslatorGLSL(ShShaderType type,ShShaderSpec spec)24 TranslatorGLSL::TranslatorGLSL(ShShaderType type, ShShaderSpec spec)
25 : TCompiler(type, spec) {
26 }
27
translate(TIntermNode * root)28 void TranslatorGLSL::translate(TIntermNode* root) {
29 TInfoSinkBase& sink = getInfoSink().obj;
30
31 // Write GLSL version.
32 writeVersion(getShaderType(), root, sink);
33
34 // Write translated shader.
35 TOutputGLSL outputGLSL(sink);
36 root->traverse(&outputGLSL);
37 }
38