Redesigned CommandBuffer and NPDevice3D interfaces

chrome/common/command_buffer_messages_internal.h

 // Copyright (c) 2009 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 "base/shared_memory.h"
 #include "ipc/ipc_message_macros.h"
 
 IPC_BEGIN_MESSAGES(CommandBuffer)
   // Initialize a command buffer with the given number of command entries.
   // Returns the shared memory handle for the command buffer mapped to the
   // calling process.
   IPC_SYNC_MESSAGE_ROUTED1_1(CommandBufferMsg_Initialize,
                              int32 /* size */,
                              base::SharedMemoryHandle /* ring_buffer */)
 
-  // Get the number of command entries in the command buffer.
-  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetSize,
-                             int32 /* size */)
+  // Get the current state of the command buffer, optionally reseting the
+  // parse error.
+  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetState,
+                             gpu::CommandBuffer::State /* state */)
 
   // Synchronize the put and get offsets of both processes. Caller passes its
   // current put offset. Current get offset is returned.
-  IPC_SYNC_MESSAGE_ROUTED1_1(CommandBufferMsg_SyncOffsets,
+  IPC_SYNC_MESSAGE_ROUTED1_1(CommandBufferMsg_Flush,
                              int32 /* put_offset */,
-                             int32 /* get_offset */)
-
-  // Get the current get offset.
-  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetGetOffset,
-                             int32 /* get_offset */)
-
-  // Get the current put offset.
-  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetPutOffset,
-                             int32 /* put_offset */)
+                             gpu::CommandBuffer::State /* state */)
 
   // Create a shared memory transfer buffer. Returns an id that can be used to
   // identify the transfer buffer from a comment.
   IPC_SYNC_MESSAGE_ROUTED1_1(CommandBufferMsg_CreateTransferBuffer,
                              int32 /* size */,
                              int32 /* id */)
 
   // Destroy a previously created transfer buffer.
   IPC_SYNC_MESSAGE_ROUTED1_0(CommandBufferMsg_DestroyTransferBuffer,
                              int32 /* id */)
 
   // Get the shared memory handle for a transfer buffer mapped to the callers
   // process.
   IPC_SYNC_MESSAGE_ROUTED1_2(CommandBufferMsg_GetTransferBuffer,
                              int32 /* id */,
                              base::SharedMemoryHandle /* transfer_buffer */,
                              size_t /* size */)
 
-  // Get the most recently processed token. Used for implementing fences.
-  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetToken,
-                             int32 /* token */)
-
-  // Get the current parse error. Calling this resets the parse error if it is
-  // recoverable.
-  // TODO(apatrick): Switch to the parse_error::ParseError enum now that NPAPI
-  //    no longer limits to restricted set of datatypes.
-  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_ResetParseError,
-                             int32 /* parse_error */)
-
-  // Get the current error status.
-  IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetErrorStatus,
-                             bool /* status */)
-
 IPC_END_MESSAGES(CommandBuffer)