Adding YUVA support for enabling Alpha Playback

cc/output/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_OUTPUT_SHADER_H_
 #define CC_OUTPUT_SHADER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 394 matching lines @@
   int y_texture_location_;
   int u_texture_location_;
   int v_texture_location_;
   int alpha_location_;
   int yuv_matrix_location_;
   int yuv_adj_location_;
 
   DISALLOW_COPY_AND_ASSIGN(FragmentShaderYUVVideo);
 };
 
+
+class FragmentShaderYUVAVideo {
+public:

[danakj, 2013/04/04 15:01:55]

nit: 1 space before public/private:

does the presubmit not mention this on upload?

[vignesh, 2013/04/04 22:06:14]

not sure why, presubmit did not mention this.

Done.

+  FragmentShaderYUVAVideo();
+  std::string GetShaderString() const;
+
+  void Init(WebKit::WebGraphicsContext3D*,

[danakj, 2013/04/04 15:01:55]

nit: give all arguments variable names

[vignesh, 2013/04/04 22:06:14]

Done.

+            unsigned program,
+            bool using_bind_uniform,
+            int* base_uniform_index);
+
+  int y_texture_location() const { return y_texture_location_; }
+  int u_texture_location() const { return u_texture_location_; }
+  int v_texture_location() const { return v_texture_location_; }
+  int a_texture_location() const { return a_texture_location_; }
+  int alpha_location() const { return alpha_location_; }
+  int yuv_matrix_location() const { return yuv_matrix_location_; }
+  int yuv_adj_location() const { return yuv_adj_location_; }
+
+private:
+  int y_texture_location_;
+  int u_texture_location_;
+  int v_texture_location_;
+  int a_texture_location_;
+  int alpha_location_;
+  int yuv_matrix_location_;
+  int yuv_adj_location_;
+
+  DISALLOW_COPY_AND_ASSIGN(FragmentShaderYUVAVideo);
+};
+
 class FragmentShaderColor {
  public:
   FragmentShaderColor();
   std::string GetShaderString() const;
 
   void Init(WebKit::WebGraphicsContext3D*,
             unsigned program,
             bool using_bind_uniform,
             int* base_uniform_index);
   int edge_location() const { return -1; }
@@ skipping 43 matching lines @@
   int tex_transform_location_;
   int frequency_location_;
   int color_location_;
 
   DISALLOW_COPY_AND_ASSIGN(FragmentShaderCheckerboard);
 };
 
 } // namespace cc
 
 #endif  // CC_OUTPUT_SHADER_H_