xref: /aosp_15_r20/external/angle/src/compiler/translator/glsl/OutputESSL.cpp (revision 8975f5c5ed3d1c378011245431ada316dfb6f244) 
1 //
2 // Copyright 2002 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/translator/glsl/OutputESSL.h"
8 
9 namespace sh
10 {
11 
TOutputESSL(TCompiler * compiler,TInfoSinkBase & objSink,const ShCompileOptions & compileOptions)12 TOutputESSL::TOutputESSL(TCompiler *compiler,
13                          TInfoSinkBase &objSink,
14                          const ShCompileOptions &compileOptions)
15     : TOutputGLSLBase(compiler, objSink, compileOptions)
16 {}
17 
writeVariablePrecision(TPrecision precision)18 bool TOutputESSL::writeVariablePrecision(TPrecision precision)
19 {
20     if (precision == EbpUndefined)
21         return false;
22 
23     if (precision == EbpHigh && !isHighPrecisionSupported())
24     {
25         precision = EbpMedium;
26     }
27 
28     TInfoSinkBase &out = objSink();
29     out << getPrecisionString(precision);
30     return true;
31 }
32 
translateTextureFunction(const ImmutableString & name,const ShCompileOptions & option)33 ImmutableString TOutputESSL::translateTextureFunction(const ImmutableString &name,
34                                                       const ShCompileOptions &option)
35 {
36     // Check WEBGL_video_texture invocation first.
37     if (name == "textureVideoWEBGL")
38     {
39         if (option.takeVideoTextureAsExternalOES)
40         {
41             // TODO(http://anglebug.com/42262534): Implement external image situation.
42             UNIMPLEMENTED();
43             return ImmutableString("");
44         }
45         else
46         {
47             // Default translating textureVideoWEBGL to texture2D.
48             return ImmutableString("texture2D");
49         }
50     }
51 
52     return name;
53 }
54 
55 }  // namespace sh
56