Adding YUVA support for enabling Alpha Playback

cc/shader.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_SHADER_H_
 #define CC_SHADER_H_
 
 #include "third_party/skia/include/core/SkColorPriv.h"
 #include <string>
 
@@ skipping 352 matching lines @@
     FragmentShaderColor();
     std::string getShaderString() const;
 
     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
     int colorLocation() const { return m_colorLocation; }
 
 private:
     int m_colorLocation;
 };
 
+class FragmentShaderYUVAVideo {

[fgalligan1, 2013/02/12 01:20:58]

You could make this inherit from FragmentShaderYUVVideo.

+public:
+    FragmentShaderYUVAVideo();
+    std::string getShaderString() const;
+
+    void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
+
+    int yTextureLocation() const { return m_yTextureLocation; }
+    int uTextureLocation() const { return m_uTextureLocation; }
+    int vTextureLocation() const { return m_vTextureLocation; }
+    int aTextureLocation() const { return m_aTextureLocation; }
+    int alphaLocation() const { return m_alphaLocation; }
+    int yuvMatrixLocation() const { return m_yuvMatrixLocation; }
+    int yuvAdjLocation() const { return m_yuvAdjLocation; }
+
+private:
+    int m_yTextureLocation;
+    int m_uTextureLocation;
+    int m_vTextureLocation;
+    int m_aTextureLocation;
+    int m_alphaLocation;
+    int m_yuvMatrixLocation;
+    int m_yuvAdjLocation;
+};
+
 class FragmentShaderCheckerboard {
 public:
     FragmentShaderCheckerboard();
     std::string getShaderString() const;
 
     void init(WebKit::WebGraphicsContext3D*, unsigned program, bool usingBindUniform, int* baseUniformIndex);
     int alphaLocation() const { return m_alphaLocation; }
     int texTransformLocation() const { return m_texTransformLocation; }
     int frequencyLocation() const { return m_frequencyLocation; }
     int colorLocation() const { return m_colorLocation; }
 private:
     int m_alphaLocation;
     int m_texTransformLocation;
     int m_frequencyLocation;
     int m_colorLocation;
 };
 
 } // namespace cc
 
 #endif  // CC_SHADER_H_