Add support for GL_CHROMIUM_pixel_transfer_buffer_object.

gpu/command_buffer/client/gles2_implementation.h

 // 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.
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
 #define GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_
 
 #include <GLES2/gl2.h>
 
 #include <map>
 #include <queue>
 #include <set>
 #include <string>
 #include <vector>
 
+#include "../client/buffer_tracker.h"
+#include "../client/client_context_state.h"
+#include "../client/gles2_cmd_helper.h"
+#include "../client/gles2_interface.h"
+#include "../client/query_tracker.h"
+#include "../client/ref_counted.h"
+#include "../client/ring_buffer.h"
+#include "../client/share_group.h"
 #include "../common/compiler_specific.h"
 #include "../common/debug_marker_manager.h"
 #include "../common/gles2_cmd_utils.h"
 #include "../common/scoped_ptr.h"
-#include "../client/ref_counted.h"
-#include "../client/client_context_state.h"
-#include "../client/gles2_cmd_helper.h"
-#include "../client/gles2_interface.h"
-#include "../client/query_tracker.h"
-#include "../client/ring_buffer.h"
-#include "../client/share_group.h"
 #include "gles2_impl_export.h"
 
 #if !defined(NDEBUG) && !defined(__native_client__) && !defined(GLES2_CONFORMANCE_TESTS)  // NOLINT
   #if defined(GLES2_INLINE_OPTIMIZATION)
     // TODO(gman): Replace with macros that work with inline optmization.
     #define GPU_CLIENT_SINGLE_THREAD_CHECK()
     #define GPU_CLIENT_LOG(args)
     #define GPU_CLIENT_LOG_CODE_BLOCK(code)
     #define GPU_CLIENT_DCHECK_CODE_BLOCK(code)
   #else
@@ skipping 415 matching lines @@
 
   IdHandlerInterface* GetIdHandler(int id_namespace) const;
 
   void FinishHelper();
 
   // Asserts that the context is lost.
   // NOTE: This is an expensive call and should only be called
   // for error checking.
   bool MustBeContextLost();
 
+  BufferTracker::Buffer* GetBoundPixelUnpackTransferBufferIfValid(
+      const char* function_name, GLuint offset, GLsizei size);
+
   const std::string& GetLogPrefix() const;
 
   GLES2Util util_;
   GLES2CmdHelper* helper_;
   TransferBufferInterface* transfer_buffer_;
   std::string last_error_;
   DebugMarkerManager debug_marker_manager_;
   std::string this_in_hex_;
 
   std::queue<int32> swap_buffers_tokens_;
@@ skipping 35 matching lines @@
 
   // The program in use by glUseProgram
   GLuint current_program_;
 
   // The currently bound array buffer.
   GLuint bound_array_buffer_id_;
 
   // The currently bound element array buffer.
   GLuint bound_element_array_buffer_id_;
 
+  // The currently bound pixel transfer buffer.
+  GLuint bound_pixel_unpack_transfer_buffer_id_;
+
   // GL names for the buffers used to emulate client side buffers.
   GLuint client_side_array_id_;
   GLuint client_side_element_array_id_;
 
   // Info for each vertex attribute saved so we can simulate client side
   // buffers.
   scoped_ptr<ClientSideBufferHelper> client_side_buffer_helper_;
 
   // The currently bound vertex array object (VAO)
   GLuint bound_vertex_array_id_;
@@ skipping 24 matching lines @@
   typedef std::map<const void*, MappedTexture> MappedTextureMap;
   MappedTextureMap mapped_textures_;
 
   scoped_ptr<MappedMemoryManager> mapped_memory_;
 
   scoped_refptr<ShareGroup> share_group_;
 
   scoped_ptr<QueryTracker> query_tracker_;
   QueryTracker::Query* current_query_;
 
+  scoped_ptr<BufferTracker> buffer_tracker_;
+
   ErrorMessageCallback* error_message_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(GLES2Implementation);
 };
 
 inline bool GLES2Implementation::GetBufferParameterivHelper(
     GLenum /* target */, GLenum /* pname */, GLint* /* params */) {
   return false;
 }
 
@@ skipping 22 matching lines @@
 
 inline bool GLES2Implementation::GetTexParameterivHelper(
     GLenum /* target */, GLenum /* pname */, GLint* /* params */) {
   return false;
 }
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_H_