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Diffstat (limited to 'gfx/angle/checkout/src/compiler/translator/tree_ops/EmulateGLFragColorBroadcast.h')
-rw-r--r-- | gfx/angle/checkout/src/compiler/translator/tree_ops/EmulateGLFragColorBroadcast.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/tree_ops/EmulateGLFragColorBroadcast.h b/gfx/angle/checkout/src/compiler/translator/tree_ops/EmulateGLFragColorBroadcast.h new file mode 100644 index 0000000000..c71ba7c2be --- /dev/null +++ b/gfx/angle/checkout/src/compiler/translator/tree_ops/EmulateGLFragColorBroadcast.h @@ -0,0 +1,35 @@ +// +// 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. +[[nodiscard]] bool EmulateGLFragColorBroadcast(TCompiler *compiler, + TIntermBlock *root, + int maxDrawBuffers, + std::vector<ShaderVariable> *outputVariables, + TSymbolTable *symbolTable, + int shaderVersion); +} // namespace sh + +#endif // COMPILER_TRANSLATOR_TREEOPS_EMULATEGLFRAGCOLORBROADCAST_H_ |