WebGL: tex(Sub)Image(2D|3D) texImageSource support for RGB10_A2 textures.

gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 56 matching lines @@
   D_FORMAT_RGB9_E5,
   D_FORMAT_R16F,
   D_FORMAT_R32F,
   D_FORMAT_RG16F,
   D_FORMAT_RG32F,
   D_FORMAT_RGB16F,
   D_FORMAT_RGB32F,
   D_FORMAT_RGBA16F,
   D_FORMAT_RGBA32F,
   D_FORMAT_R11F_G11F_B10F,
+  D_FORMAT_RGB10_A2,
   NUM_D_FORMAT
 };
 
 const unsigned kNumVertexShaders = NUM_SAMPLERS;
 const unsigned kNumFragmentShaders =
     4 * NUM_SAMPLERS * NUM_S_FORMAT * NUM_D_FORMAT;
 
 typedef unsigned ShaderId;
 
 ShaderId GetVertexShaderId(GLenum target) {
@@ skipping 175 matching lines @@
       break;
     case GL_RGBA16F:
       destFormatIndex = D_FORMAT_RGBA16F;
       break;
     case GL_RGBA32F:
       destFormatIndex = D_FORMAT_RGBA32F;
       break;
     case GL_R11F_G11F_B10F:
       destFormatIndex = D_FORMAT_R11F_G11F_B10F;
       break;
+    case GL_RGB10_A2:
+      destFormatIndex = D_FORMAT_RGB10_A2;
+      break;
     default:
       NOTREACHED();
       break;
   }
 
   return alphaIndex + targetIndex * 4 + sourceFormatIndex * 4 * NUM_SAMPLERS +
          destFormatIndex * 4 * NUM_SAMPLERS * NUM_S_FORMAT;
 }
 
 const char* kShaderPrecisionPreamble =
@@ skipping 1061 matching lines @@
   decoder->RestoreTextureUnitBindings(0);
   decoder->RestoreActiveTexture();
   decoder->RestoreProgramBindings();
   decoder->RestoreBufferBindings();
   decoder->RestoreFramebufferBindings();
   decoder->RestoreGlobalState();
 }
 
 }  // namespace gles2
 }  // namespace gpu