Addition of GL_CHROMIUM_copy_texture extension.

gpu/command_buffer/service/texture_manager.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/texture_manager.h"
 #include "base/bits.h"
 #include "base/debug/trace_event.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ skipping 308 matching lines @@
     const LevelInfo& info = level_infos_[GLTargetToFaceIndex(face)][level];
     if (info.target != 0) {
       *width = info.width;
       *height = info.height;
       return true;
     }
   }
   return false;
 }
 
+bool TextureManager::TextureInfo::SetLevelSize(

[greggman, 2012/04/17 04:58:06]

Honestly, I feel like it might be better if you delete this and call
TextureManager::SetLevelInfo. There are other flags set when calling this stuff.
We can work through all of them if you want or you can just call SetLevelInfo

+    GLint face, GLint level, GLsizei width, GLsizei height) {
+  size_t face_index = GLTargetToFaceIndex(face);
+  if (level >= 0 && face_index < level_infos_.size() &&
+      static_cast<size_t>(level) < level_infos_[face_index].size()) {
+    LevelInfo& info = level_infos_[face_index][level];
+    if (info.target!= 0) {
+      info.width = width;
+      info.height = height;
+      return true;
+    }
+  }
+  return false;
+}
+
 bool TextureManager::TextureInfo::GetLevelType(
     GLint face, GLint level, GLenum* type, GLenum* internal_format) const {
   DCHECK(type);
   DCHECK(internal_format);
   size_t face_index = GLTargetToFaceIndex(face);
   if (level >= 0 && face_index < level_infos_.size() &&
       static_cast<size_t>(level) < level_infos_[face_index].size()) {
-    const LevelInfo& info = level_infos_[GLTargetToFaceIndex(face)][level];
+    const LevelInfo& info = level_infos_[face_index][level];
     if (info.target != 0) {
       *type = info.type;
       *internal_format = info.internal_format;
       return true;
     }
   }
   return false;
 }
 
 bool TextureManager::TextureInfo::SetParameter(
@@ skipping 562 matching lines @@
 GLsizei TextureManager::ComputeMipMapCount(
     GLsizei width, GLsizei height, GLsizei depth) {
   return 1 + base::bits::Log2Floor(std::max(std::max(width, height), depth));
 }
 
 
 }  // namespace gles2
 }  // namespace gpu