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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This file contains the command parser class. | 5 // This file contains the command parser class. |
| 6 | 6 |
| 7 #ifndef GPU_COMMAND_BUFFER_SERVICE_CMD_PARSER_H_ | 7 #ifndef GPU_COMMAND_BUFFER_SERVICE_CMD_PARSER_H_ |
| 8 #define GPU_COMMAND_BUFFER_SERVICE_CMD_PARSER_H_ | 8 #define GPU_COMMAND_BUFFER_SERVICE_CMD_PARSER_H_ |
| 9 | 9 |
| 10 #include <stddef.h> |
| 11 #include <stdint.h> |
| 12 |
| 13 #include "gpu/command_buffer/common/cmd_buffer_common.h" |
| 10 #include "gpu/command_buffer/common/constants.h" | 14 #include "gpu/command_buffer/common/constants.h" |
| 11 #include "gpu/command_buffer/common/cmd_buffer_common.h" | |
| 12 #include "gpu/gpu_export.h" | 15 #include "gpu/gpu_export.h" |
| 13 | 16 |
| 14 namespace gpu { | 17 namespace gpu { |
| 15 | 18 |
| 16 class AsyncAPIInterface; | 19 class AsyncAPIInterface; |
| 17 | 20 |
| 18 // Command parser class. This class parses commands from a shared memory | 21 // Command parser class. This class parses commands from a shared memory |
| 19 // buffer, to implement some asynchronous RPC mechanism. | 22 // buffer, to implement some asynchronous RPC mechanism. |
| 20 class GPU_EXPORT CommandParser { | 23 class GPU_EXPORT CommandParser { |
| 21 public: | 24 public: |
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| 59 // if there are no commands in the buffer. | 62 // if there are no commands in the buffer. |
| 60 error::Error ProcessCommands(int num_commands); | 63 error::Error ProcessCommands(int num_commands); |
| 61 | 64 |
| 62 // Processes all commands until get == put. | 65 // Processes all commands until get == put. |
| 63 error::Error ProcessAllCommands(); | 66 error::Error ProcessAllCommands(); |
| 64 | 67 |
| 65 private: | 68 private: |
| 66 CommandBufferOffset get_; | 69 CommandBufferOffset get_; |
| 67 CommandBufferOffset put_; | 70 CommandBufferOffset put_; |
| 68 CommandBufferEntry* buffer_; | 71 CommandBufferEntry* buffer_; |
| 69 int32 entry_count_; | 72 int32_t entry_count_; |
| 70 AsyncAPIInterface* handler_; | 73 AsyncAPIInterface* handler_; |
| 71 }; | 74 }; |
| 72 | 75 |
| 73 // This class defines the interface for an asynchronous API handler, that | 76 // This class defines the interface for an asynchronous API handler, that |
| 74 // is responsible for de-multiplexing commands and their arguments. | 77 // is responsible for de-multiplexing commands and their arguments. |
| 75 class GPU_EXPORT AsyncAPIInterface { | 78 class GPU_EXPORT AsyncAPIInterface { |
| 76 public: | 79 public: |
| 77 AsyncAPIInterface() {} | 80 AsyncAPIInterface() {} |
| 78 virtual ~AsyncAPIInterface() {} | 81 virtual ~AsyncAPIInterface() {} |
| 79 | 82 |
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| 101 int num_entries, | 104 int num_entries, |
| 102 int* entries_processed); | 105 int* entries_processed); |
| 103 | 106 |
| 104 // Returns a name for a command. Useful for logging / debuging. | 107 // Returns a name for a command. Useful for logging / debuging. |
| 105 virtual const char* GetCommandName(unsigned int command_id) const = 0; | 108 virtual const char* GetCommandName(unsigned int command_id) const = 0; |
| 106 }; | 109 }; |
| 107 | 110 |
| 108 } // namespace gpu | 111 } // namespace gpu |
| 109 | 112 |
| 110 #endif // GPU_COMMAND_BUFFER_SERVICE_CMD_PARSER_H_ | 113 #endif // GPU_COMMAND_BUFFER_SERVICE_CMD_PARSER_H_ |
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