Factor out the command buffer implementation in ppb_graphics_3d_proxy so that it is more general (does not depend on a dispatcher) and can be used elsewhere.

BUG=none
TEST=manually


Review URL: http://codereview.chromium.org/9420028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@125596 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 65 insertions, 0 deletions

diff --git a/ppapi/proxy/ppapi_command_buffer_proxy.h b/ppapi/proxy/ppapi_command_buffer_proxy.h
new file mode 100644
index 0000000..2d66c14
--- /dev/null
+++ b/ppapi/proxy/ppapi_command_buffer_proxy.h
@@ -0,0 +1,65 @@
+// 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 PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
+#define PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
+#pragma once
+
+#include "base/hash_tables.h"
+#include "gpu/command_buffer/common/command_buffer.h"
+#include "ppapi/proxy/ppapi_proxy_export.h"
+#include "ppapi/shared_impl/host_resource.h"
+
+namespace IPC {
+class Message;
+}
+
+namespace ppapi {
+namespace proxy {
+
+class ProxyChannel;
+
+class PPAPI_PROXY_EXPORT PpapiCommandBufferProxy : public gpu::CommandBuffer {
+ public:
+  PpapiCommandBufferProxy(const HostResource& resource,
+                          ProxyChannel* channel);
+  virtual ~PpapiCommandBufferProxy();
+
+  // gpu::CommandBuffer implementation:
+  virtual bool Initialize();
+  virtual State GetState();
+  virtual State GetLastState();
+  virtual void Flush(int32 put_offset);
+  virtual State FlushSync(int32 put_offset, int32 last_known_get);
+  virtual void SetGetBuffer(int32 transfer_buffer_id);
+  virtual void SetGetOffset(int32 get_offset);
+  virtual int32 CreateTransferBuffer(size_t size, int32 id_request);
+  virtual int32 RegisterTransferBuffer(base::SharedMemory* shared_memory,
+                                       size_t size,
+                                       int32 id_request);
+  virtual void DestroyTransferBuffer(int32 id);
+  virtual gpu::Buffer GetTransferBuffer(int32 handle);
+  virtual void SetToken(int32 token);
+  virtual void SetParseError(gpu::error::Error error);
+  virtual void SetContextLostReason(gpu::error::ContextLostReason reason);
+
+ private:
+  bool Send(IPC::Message* msg);
+  void UpdateState(const gpu::CommandBuffer::State& state);
+
+  typedef base::hash_map<int32, gpu::Buffer> TransferBufferMap;
+  TransferBufferMap transfer_buffers_;
+
+  State last_state_;
+
+  HostResource resource_;
+  ProxyChannel* channel_;
+
+  DISALLOW_COPY_AND_ASSIGN(PpapiCommandBufferProxy);
+};
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif // PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_