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_