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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 buffer helper class. | 5 // This file contains the command buffer helper class. |
6 | 6 |
7 #ifndef GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_ | 7 #ifndef GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_ |
8 #define GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_ | 8 #define GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_ |
9 | 9 |
10 #include <string.h> | 10 #include <string.h> |
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142 } | 142 } |
143 } | 143 } |
144 | 144 |
145 void SetToken(uint32 token) { | 145 void SetToken(uint32 token) { |
146 cmd::SetToken* cmd = GetCmdSpace<cmd::SetToken>(); | 146 cmd::SetToken* cmd = GetCmdSpace<cmd::SetToken>(); |
147 if (cmd) { | 147 if (cmd) { |
148 cmd->Init(token); | 148 cmd->Init(token); |
149 } | 149 } |
150 } | 150 } |
151 | 151 |
152 void Jump(uint32 offset) { | |
153 cmd::Jump* cmd = GetCmdSpace<cmd::Jump>(); | |
154 if (cmd) { | |
155 cmd->Init(offset); | |
156 } | |
157 } | |
158 | |
159 void JumpRelative(int32 offset) { | |
160 cmd::JumpRelative* cmd = GetCmdSpace<cmd::JumpRelative>(); | |
161 if (cmd) { | |
162 cmd->Init(offset); | |
163 } | |
164 } | |
165 | |
166 void Call(uint32 offset) { | |
167 cmd::Call* cmd = GetCmdSpace<cmd::Call>(); | |
168 if (cmd) { | |
169 cmd->Init(offset); | |
170 } | |
171 } | |
172 | |
173 void CallRelative(int32 offset) { | |
174 cmd::CallRelative* cmd = GetCmdSpace<cmd::CallRelative>(); | |
175 if (cmd) { | |
176 cmd->Init(offset); | |
177 } | |
178 } | |
179 | |
180 void Return() { | |
181 cmd::Return* cmd = GetCmdSpace<cmd::Return>(); | |
182 if (cmd) { | |
183 cmd->Init(); | |
184 } | |
185 } | |
186 | |
187 void SetBucketSize(uint32 bucket_id, uint32 size) { | 152 void SetBucketSize(uint32 bucket_id, uint32 size) { |
188 cmd::SetBucketSize* cmd = GetCmdSpace<cmd::SetBucketSize>(); | 153 cmd::SetBucketSize* cmd = GetCmdSpace<cmd::SetBucketSize>(); |
189 if (cmd) { | 154 if (cmd) { |
190 cmd->Init(bucket_id, size); | 155 cmd->Init(bucket_id, size); |
191 } | 156 } |
192 } | 157 } |
193 | 158 |
194 void SetBucketData(uint32 bucket_id, | 159 void SetBucketData(uint32 bucket_id, |
195 uint32 offset, | 160 uint32 offset, |
196 uint32 size, | 161 uint32 size, |
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269 void ClearUsable() { | 234 void ClearUsable() { |
270 usable_ = false; | 235 usable_ = false; |
271 } | 236 } |
272 | 237 |
273 private: | 238 private: |
274 // Waits until get changes, updating the value of get_. | 239 // Waits until get changes, updating the value of get_. |
275 void WaitForGetChange(); | 240 void WaitForGetChange(); |
276 | 241 |
277 // Returns the number of available entries (they may not be contiguous). | 242 // Returns the number of available entries (they may not be contiguous). |
278 int32 AvailableEntries() { | 243 int32 AvailableEntries() { |
279 return (get_offset() - put_ - 1 + usable_entry_count_) % | 244 return (get_offset() - put_ - 1 + total_entry_count_) % total_entry_count_; |
280 usable_entry_count_; | |
281 } | 245 } |
282 | 246 |
283 bool AllocateRingBuffer(); | 247 bool AllocateRingBuffer(); |
284 void FreeResources(); | 248 void FreeResources(); |
285 | 249 |
286 CommandBuffer* command_buffer_; | 250 CommandBuffer* command_buffer_; |
287 int32 ring_buffer_id_; | 251 int32 ring_buffer_id_; |
288 int32 ring_buffer_size_; | 252 int32 ring_buffer_size_; |
289 Buffer ring_buffer_; | 253 Buffer ring_buffer_; |
290 CommandBufferEntry* entries_; | 254 CommandBufferEntry* entries_; |
291 int32 total_entry_count_; // the total number of entries | 255 int32 total_entry_count_; // the total number of entries |
292 int32 usable_entry_count_; // the usable number (ie, minus space for jump) | |
293 int32 token_; | 256 int32 token_; |
294 int32 put_; | 257 int32 put_; |
295 int32 last_put_sent_; | 258 int32 last_put_sent_; |
296 int commands_issued_; | 259 int commands_issued_; |
297 bool usable_; | 260 bool usable_; |
298 bool context_lost_; | 261 bool context_lost_; |
299 bool flush_automatically_; | 262 bool flush_automatically_; |
300 | 263 |
301 // Using C runtime instead of base because this file cannot depend on base. | 264 // Using C runtime instead of base because this file cannot depend on base. |
302 clock_t last_flush_time_; | 265 clock_t last_flush_time_; |
303 | 266 |
304 friend class CommandBufferHelperTest; | 267 friend class CommandBufferHelperTest; |
305 DISALLOW_COPY_AND_ASSIGN(CommandBufferHelper); | 268 DISALLOW_COPY_AND_ASSIGN(CommandBufferHelper); |
306 }; | 269 }; |
307 | 270 |
308 } // namespace gpu | 271 } // namespace gpu |
309 | 272 |
310 #endif // GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_ | 273 #endif // GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_ |
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