summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/angle/src/compiler/translator/EmulateGLFragColorBroadcast.h
diff options
context:
space:
mode:
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
new file mode 100644
index 0000000000..e652b7e07e
--- /dev/null
+++ 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_