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authorLiang Qi <liang.qi@qt.io>2018-10-26 10:28:24 +0000
committerThe Qt Project <gerrit-noreply@qt-project.org>2018-10-26 10:28:24 +0000
commit00b2e45a97205975ee91aa43f00e3dbef1a8907b (patch)
treeed44e50bc893e87434d72470c2c809b1fb34de72 /src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h
parent9cd527bc1f384926985d63c741641316a66f17a4 (diff)
parente28e91ae99b8c3859899e04cc9370534c7c7b86d (diff)
Merge "Merge remote-tracking branch 'origin/5.12' into dev" into refs/staging/dev
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h')
-rw-r--r--src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h b/src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h
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+++ b/src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h
@@ -0,0 +1,31 @@
+//
+// Copyright (c) 2002-2016 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_EMULATEGLFRAGCOLORBROADCAST_H_
+#define COMPILER_TRANSLATOR_EMULATEGLFRAGCOLORBROADCAST_H_
+
+#include <vector>
+
+namespace sh
+{
+struct OutputVariable;
+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.
+void EmulateGLFragColorBroadcast(TIntermBlock *root,
+ int maxDrawBuffers,
+ std::vector<OutputVariable> *outputVariables,
+ TSymbolTable *symbolTable,
+ int shaderVersion);
+}
+
+#endif // COMPILER_TRANSLATOR_EMULATEGLFRAGCOLORBROADCAST_H_