1 // Copyright 2018 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef GPU_IPC_COMMON_COMMAND_BUFFER_ID_H_
6 #define GPU_IPC_COMMON_COMMAND_BUFFER_ID_H_
7 
8 #include "gpu/command_buffer/common/command_buffer_id.h"
9 
10 namespace gpu {
11 
12 enum class GpuChannelReservedRoutes : int32_t {
13   kSharedImageInterface = 0,
14   kImageDecodeAccelerator = 1,
15   kMaxValue = kImageDecodeAccelerator,
16 };
17 
CommandBufferIdFromChannelAndRoute(int channel_id,int32_t route_id)18 inline CommandBufferId CommandBufferIdFromChannelAndRoute(int channel_id,
19                                                           int32_t route_id) {
20   return CommandBufferId::FromUnsafeValue(
21       (static_cast<uint64_t>(channel_id) << 32) | route_id);
22 }
23 
ChannelIdFromCommandBufferId(gpu::CommandBufferId command_buffer_id)24 inline int ChannelIdFromCommandBufferId(
25     gpu::CommandBufferId command_buffer_id) {
26   return static_cast<int>(command_buffer_id.GetUnsafeValue() >> 32);
27 }
28 
RouteIdFromCommandBufferId(gpu::CommandBufferId command_buffer_id)29 inline int32_t RouteIdFromCommandBufferId(
30     gpu::CommandBufferId command_buffer_id) {
31   return 0xffffffff & command_buffer_id.GetUnsafeValue();
32 }
33 
34 }  // namespace gpu
35 
36 #endif  // GPU_IPC_COMMON_COMMAND_BUFFER_ID_H_
37