| // |
| // Copyright 2002 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. |
| // |
| // Emulate gl_FragColor broadcast behaviors in ES2 where |
| // GL_EXT_draw_buffers is explicitly enabled in a fragment shader. |
| // |
| |
| #ifndef COMPILER_TRANSLATOR_TREEOPS_EMULATEGLFRAGCOLORBROADCAST_H_ |
| #define COMPILER_TRANSLATOR_TREEOPS_EMULATEGLFRAGCOLORBROADCAST_H_ |
| |
| #include <vector> |
| |
| #include "common/angleutils.h" |
| |
| namespace sh |
| { |
| struct ShaderVariable; |
| class TCompiler; |
| class TIntermBlock; |
| class TSymbolTable; |
| |
| // Replace all gl_FragColor with gl_FragData[0], and in the end of main() function, |
| // assign gl_FragData[1] ... gl_FragData[maxDrawBuffers - 1] with gl_FragData[0]. |
| // If gl_FragColor is in outputVariables, it is replaced by gl_FragData. |
| ANGLE_NO_DISCARD bool EmulateGLFragColorBroadcast(TCompiler *compiler, |
| TIntermBlock *root, |
| int maxDrawBuffers, |
| std::vector<ShaderVariable> *outputVariables, |
| TSymbolTable *symbolTable, |
| int shaderVersion); |
| } // namespace sh |
| |
| #endif // COMPILER_TRANSLATOR_TREEOPS_EMULATEGLFRAGCOLORBROADCAST_H_ |