Execute all GL commands up to the put offset reported by a flush.

ppapi/proxy/ppb_context_3d_proxy.cc

 // Copyright (c) 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.
 
 #include "ppapi/proxy/ppb_context_3d_proxy.h"
 
 #include "base/hash_tables.h"
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 69 matching lines @@
  public:
   PepperCommandBuffer(const HostResource& resource,
                       PluginDispatcher* dispatcher);
   virtual ~PepperCommandBuffer();
 
   // CommandBuffer implementation:
   virtual bool Initialize(int32 size);
   virtual bool Initialize(base::SharedMemory* buffer, int32 size);
   virtual gpu::Buffer GetRingBuffer();
   virtual State GetState();
+  virtual State GetLastState();
   virtual void Flush(int32 put_offset);
   virtual State FlushSync(int32 put_offset, int32 last_known_get);
   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);
@@ skipping 78 matching lines @@
   if (last_state_.error == gpu::error::kNoError) {
     gpu::CommandBuffer::State state;
     if (Send(new PpapiHostMsg_PPBContext3D_GetState(
              INTERFACE_ID_PPB_CONTEXT_3D, resource_, &state)))
       UpdateState(state);
   }
 
   return last_state_;
 }
 
+gpu::CommandBuffer::State PepperCommandBuffer::GetLastState() {
+  return last_state_;
+}
+
 void PepperCommandBuffer::Flush(int32 put_offset) {
   if (last_state_.error != gpu::error::kNoError)
     return;
 
   IPC::Message* message = new PpapiHostMsg_PPBContext3D_AsyncFlush(
       INTERFACE_ID_PPB_CONTEXT_3D, resource_, put_offset);
 
   // Do not let a synchronous flush hold up this message. If this handler is
   // deferred until after the synchronous flush completes, it will overwrite the
   // cached last_state_ with out-of-date data.
@@ skipping 506 matching lines @@
   uint32_t shm_size = 0;
   if (enter.succeeded() &&
       enter.object()->GetTransferBuffer(id, &shm_handle, &shm_size)) {
     *transfer_buffer = TransportSHMHandleFromInt(dispatcher(), shm_handle);
     *size = shm_size;
   }
 }
 
 }  // namespace proxy
 }  // namespace pp