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// 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 current state of the command buffer.
IPC_SYNC_MESSAGE_ROUTED0_1(CommandBufferMsg_GetState,
gpu::CommandBuffer::State /* state */)
// Get the current state of the command buffer asynchronously. State is
// returned via UpdateState message.
IPC_MESSAGE_ROUTED0(CommandBufferMsg_AsyncGetState)
// Synchronize the put and get offsets of both processes. Caller passes its
// current put offset. Current state (including get offset) is returned.
IPC_SYNC_MESSAGE_ROUTED1_1(CommandBufferMsg_Flush,
int32 /* put_offset */,
gpu::CommandBuffer::State /* state */)
// Asynchronously synchronize the put and get offsets of both processes.
// Caller passes its current put offset. Current state (including get offset)
// is returned via an UpdateState message.
IPC_MESSAGE_ROUTED1(CommandBufferMsg_AsyncFlush,
int32 /* put_offset */)
// Return the current state of the command buffer following a request via
// an AsyncGetState or AsyncFlush message.
IPC_MESSAGE_ROUTED1(CommandBufferMsg_UpdateState,
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 */,
uint32 /* size */)
// Send from command buffer stub to proxy when window is invalid and must be
// repainted.
IPC_MESSAGE_ROUTED0(CommandBufferMsg_NotifyRepaint)
#if defined(OS_MACOSX)
// On Mac OS X the GPU plugin must be offscreen, because there is no
// true cross-process window hierarchy. For this reason we must send
// resize events explicitly to the command buffer stub so it can
// reallocate its backing store and send the new one back to the
// browser. This message is currently used only on 10.6 and later.
IPC_MESSAGE_ROUTED2(CommandBufferMsg_SetWindowSize,
int32 /* width */,
int32 /* height */)
#endif
IPC_END_MESSAGES(CommandBuffer)
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