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1 // Copyright (c) 2013 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 #include "ui/gl/async_pixel_transfer_delegate_idle.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/debug/trace_event.h" | |
9 #include "base/lazy_instance.h" | |
10 #include "base/message_loop.h" | |
11 #include "base/process_util.h" | |
12 #include "base/shared_memory.h" | |
13 #include "build/build_config.h" | |
14 #include "ui/gl/gl_bindings.h" | |
15 #include "ui/gl/gl_context.h" | |
16 #include "ui/gl/gl_surface.h" | |
17 #include "ui/gl/safe_shared_memory_pool.h" | |
18 #include "ui/gl/scoped_make_current.h" | |
19 | |
20 using base::SharedMemory; | |
21 using base::SharedMemoryHandle; | |
22 | |
23 namespace gfx { | |
24 | |
25 namespace { | |
26 | |
27 // Gets the address of the data from shared memory. | |
28 void* GetAddress(SharedMemory* shared_memory, uint32 shm_data_offset) { | |
29 // Memory bounds have already been validated, so there | |
30 // is just DCHECKS here. | |
31 DCHECK(shared_memory); | |
32 DCHECK(shared_memory->memory()); | |
33 return static_cast<int8*>(shared_memory->memory()) + shm_data_offset; | |
34 } | |
35 | |
36 base::LazyInstance<SafeSharedMemoryPool> g_safe_shared_memory_pool = | |
37 LAZY_INSTANCE_INITIALIZER; | |
38 | |
39 SafeSharedMemoryPool* safe_shared_memory_pool() { | |
40 return g_safe_shared_memory_pool.Pointer(); | |
41 } | |
42 | |
43 static uint64 g_next_pixel_transfer_state_id = 1; | |
44 | |
45 } // namespace | |
46 | |
47 #if !defined(OS_ANDROID) | |
48 scoped_ptr<AsyncPixelTransferDelegate> | |
49 AsyncPixelTransferDelegate::Create(gfx::GLContext* context) { | |
50 return AsyncPixelTransferDelegateIdle::Create(context); | |
51 } | |
52 #endif | |
53 | |
54 scoped_ptr<AsyncPixelTransferDelegate> | |
55 AsyncPixelTransferDelegateIdle::Create(gfx::GLContext* context) { | |
56 return make_scoped_ptr( | |
57 static_cast<AsyncPixelTransferDelegate*>( | |
58 new AsyncPixelTransferDelegateIdle())); | |
59 } | |
60 | |
61 class AsyncPixelTransferStateIdle : public AsyncPixelTransferState { | |
62 public: | |
63 typedef base::Callback<void(GLuint)> TransferCallback; | |
64 | |
65 explicit AsyncPixelTransferStateIdle(GLuint texture_id) | |
66 : id_(g_next_pixel_transfer_state_id++), | |
67 texture_id_(texture_id), | |
68 transfer_in_progress_(false) { | |
69 } | |
70 virtual ~AsyncPixelTransferStateIdle() {} | |
71 | |
72 // Overridden from gfx::AsyncPixelTransferState: | |
73 virtual bool TransferIsInProgress() OVERRIDE { | |
74 return transfer_in_progress_; | |
75 } | |
76 | |
77 uint64 id() const { return id_; } | |
78 | |
79 void set_transfer_in_progress(bool transfer_in_progress) { | |
80 transfer_in_progress_ = transfer_in_progress; | |
81 } | |
82 | |
83 void PerformTransfer(const TransferCallback& callback) { | |
84 DCHECK(texture_id_); | |
85 DCHECK(transfer_in_progress_); | |
86 callback.Run(texture_id_); | |
87 transfer_in_progress_ = false; | |
88 } | |
89 | |
90 private: | |
91 uint64 id_; | |
92 GLuint texture_id_; | |
93 bool transfer_in_progress_; | |
94 }; | |
95 | |
96 AsyncPixelTransferDelegateIdle::Transfer::Transfer( | |
97 uint64 id, const base::Closure& task) | |
98 : id(id), | |
99 task(task) { | |
epenner
2013/03/14 18:23:24
id=id? Would we call it 'id_' by making it a class
reveman
2013/03/14 19:21:47
Yes, but I prefer using a struct for this simple c
epenner
2013/03/14 20:31:00
Touche! I thought it was a bug, but it's totally f
| |
100 } | |
101 | |
102 AsyncPixelTransferDelegateIdle::Transfer::~Transfer() {} | |
103 | |
104 AsyncPixelTransferDelegateIdle::AsyncPixelTransferDelegateIdle() | |
105 : texture_upload_count_(0) { | |
106 } | |
107 | |
108 AsyncPixelTransferDelegateIdle::~AsyncPixelTransferDelegateIdle() { | |
109 } | |
110 | |
111 AsyncPixelTransferState* | |
112 AsyncPixelTransferDelegateIdle::CreateRawPixelTransferState( | |
113 GLuint texture_id, | |
114 const AsyncTexImage2DParams& define_params) { | |
115 return static_cast<AsyncPixelTransferState*>( | |
116 new AsyncPixelTransferStateIdle(texture_id)); | |
117 } | |
118 | |
119 bool AsyncPixelTransferDelegateIdle::BindCompletedAsyncTransfers() { | |
120 // Everything is already bound. | |
121 return false; | |
122 } | |
123 | |
124 void AsyncPixelTransferDelegateIdle::AsyncNotifyCompletion( | |
125 const AsyncMemoryParams& mem_params, | |
126 const CompletionCallback& callback) { | |
127 if (transfers_.empty()) { | |
128 callback.Run(mem_params); | |
129 return; | |
130 } | |
131 | |
132 transfers_.back().notifications.push( | |
133 base::Bind( | |
134 &AsyncPixelTransferDelegateIdle::PerformNotifyCompletion, | |
135 AsWeakPtr(), | |
136 mem_params, | |
137 base::Owned(new ScopedSafeSharedMemory(safe_shared_memory_pool(), | |
138 mem_params.shared_memory, | |
139 mem_params.shm_size)), | |
140 callback)); | |
141 } | |
142 | |
143 void AsyncPixelTransferDelegateIdle::AsyncTexImage2D( | |
144 AsyncPixelTransferState* transfer_state, | |
145 const AsyncTexImage2DParams& tex_params, | |
146 const AsyncMemoryParams& mem_params, | |
147 const base::Closure& bind_callback) { | |
148 AsyncPixelTransferStateIdle* state = | |
149 static_cast<AsyncPixelTransferStateIdle*>(transfer_state); | |
150 DCHECK(mem_params.shared_memory); | |
151 DCHECK_LE(mem_params.shm_data_offset + mem_params.shm_data_size, | |
152 mem_params.shm_size); | |
153 DCHECK(state); | |
154 | |
155 transfers_.push_back( | |
156 Transfer( | |
157 state->id(), | |
158 base::Bind( | |
159 &AsyncPixelTransferStateIdle::PerformTransfer, | |
160 base::AsWeakPtr(state), | |
161 base::Bind( | |
162 &AsyncPixelTransferDelegateIdle::PerformAsyncTexImage2D, | |
163 AsWeakPtr(), | |
164 tex_params, | |
165 mem_params, | |
166 bind_callback, | |
167 base::Owned(new ScopedSafeSharedMemory( | |
168 safe_shared_memory_pool(), | |
169 mem_params.shared_memory, | |
170 mem_params.shm_size)))))); | |
171 | |
172 state->set_transfer_in_progress(true); | |
173 } | |
174 | |
175 void AsyncPixelTransferDelegateIdle::AsyncTexSubImage2D( | |
176 AsyncPixelTransferState* transfer_state, | |
177 const AsyncTexSubImage2DParams& tex_params, | |
178 const AsyncMemoryParams& mem_params) { | |
179 AsyncPixelTransferStateIdle* state = | |
180 static_cast<AsyncPixelTransferStateIdle*>(transfer_state); | |
181 DCHECK(mem_params.shared_memory); | |
182 DCHECK_LE(mem_params.shm_data_offset + mem_params.shm_data_size, | |
183 mem_params.shm_size); | |
184 DCHECK(state); | |
185 | |
186 transfers_.push_back( | |
187 Transfer( | |
188 state->id(), | |
189 base::Bind( | |
190 &AsyncPixelTransferStateIdle::PerformTransfer, | |
191 base::AsWeakPtr(state), | |
192 base::Bind( | |
193 &AsyncPixelTransferDelegateIdle::PerformAsyncTexSubImage2D, | |
194 AsWeakPtr(), | |
195 tex_params, | |
196 mem_params, | |
197 base::Owned(new ScopedSafeSharedMemory( | |
198 safe_shared_memory_pool(), | |
199 mem_params.shared_memory, | |
200 mem_params.shm_size)))))); | |
201 | |
202 state->set_transfer_in_progress(true); | |
203 } | |
204 | |
205 void AsyncPixelTransferDelegateIdle::WaitForTransferCompletion( | |
206 AsyncPixelTransferState* transfer_state) { | |
207 AsyncPixelTransferStateIdle* state = | |
208 static_cast<AsyncPixelTransferStateIdle*>(transfer_state); | |
209 DCHECK(state); | |
210 | |
211 for (std::list<Transfer>::iterator iter = transfers_.begin(); | |
212 iter != transfers_.end(); ++iter) { | |
213 if (iter->id != state->id()) | |
214 continue; | |
215 | |
216 ProcessTransfer(*iter); | |
217 transfers_.erase(iter); | |
218 break; | |
219 } | |
220 } | |
221 | |
222 uint32 AsyncPixelTransferDelegateIdle::GetTextureUploadCount() { | |
223 return texture_upload_count_; | |
224 } | |
225 | |
226 base::TimeDelta AsyncPixelTransferDelegateIdle::GetTotalTextureUploadTime() { | |
227 return total_texture_upload_time_; | |
228 } | |
229 | |
230 bool AsyncPixelTransferDelegateIdle::ProcessMorePendingTransfers() { | |
231 if (transfers_.empty()) | |
232 return false; | |
233 | |
234 ProcessTransfer(transfers_.front()); | |
235 transfers_.pop_front(); | |
236 return true; | |
237 } | |
238 | |
239 bool AsyncPixelTransferDelegateIdle::NeedsProcessMorePendingTransfers() { | |
240 return !transfers_.empty(); | |
241 } | |
242 | |
243 void AsyncPixelTransferDelegateIdle::ProcessTransfer(Transfer& transfer) { | |
244 transfer.task.Run(); | |
245 while (!transfer.notifications.empty()) { | |
246 transfer.notifications.front().Run(); | |
247 transfer.notifications.pop(); | |
248 } | |
249 } | |
250 | |
251 void AsyncPixelTransferDelegateIdle::PerformNotifyCompletion( | |
252 AsyncMemoryParams mem_params, | |
253 ScopedSafeSharedMemory* safe_shared_memory, | |
254 const CompletionCallback& callback) { | |
255 TRACE_EVENT0("gpu", "PerformNotifyCompletion"); | |
256 gfx::AsyncMemoryParams safe_mem_params = mem_params; | |
257 safe_mem_params.shared_memory = safe_shared_memory->shared_memory(); | |
258 callback.Run(safe_mem_params); | |
259 } | |
260 | |
261 void AsyncPixelTransferDelegateIdle::PerformAsyncTexImage2D( | |
262 AsyncTexImage2DParams tex_params, | |
263 AsyncMemoryParams mem_params, | |
264 const base::Closure& bind_callback, | |
265 ScopedSafeSharedMemory* safe_shared_memory, | |
266 GLuint texture_id) { | |
267 TRACE_EVENT2("gpu", "PerformAsyncTexImage2D", | |
268 "width", tex_params.width, | |
269 "height", tex_params.height); | |
270 DCHECK_EQ(0, tex_params.level); | |
271 | |
272 void* data = GetAddress(safe_shared_memory->shared_memory(), | |
273 mem_params.shm_data_offset); | |
274 | |
275 glActiveTexture(GL_TEXTURE0); | |
276 glBindTexture(GL_TEXTURE_2D, texture_id); | |
277 | |
278 { | |
279 TRACE_EVENT0("gpu", "glTexImage2D"); | |
280 glTexImage2D( | |
281 tex_params.target, | |
282 tex_params.level, | |
283 tex_params.internal_format, | |
284 tex_params.width, | |
285 tex_params.height, | |
286 tex_params.border, | |
287 tex_params.format, | |
288 tex_params.type, | |
289 data); | |
290 } | |
291 | |
292 // The texture is already fully bound so just call it now. | |
293 bind_callback.Run(); | |
294 } | |
295 | |
296 void AsyncPixelTransferDelegateIdle::PerformAsyncTexSubImage2D( | |
297 AsyncTexSubImage2DParams tex_params, | |
298 AsyncMemoryParams mem_params, | |
299 ScopedSafeSharedMemory* safe_shared_memory, | |
300 GLuint texture_id) { | |
301 TRACE_EVENT2("gpu", "PerformAsyncTexSubImage2D", | |
302 "width", tex_params.width, | |
303 "height", tex_params.height); | |
304 DCHECK_EQ(0, tex_params.level); | |
305 | |
306 void* data = GetAddress(safe_shared_memory->shared_memory(), | |
307 mem_params.shm_data_offset); | |
308 | |
309 base::TimeTicks begin_time(base::TimeTicks::HighResNow()); | |
310 glActiveTexture(GL_TEXTURE0); | |
311 glBindTexture(GL_TEXTURE_2D, texture_id); | |
312 | |
313 { | |
314 TRACE_EVENT0("gpu", "glTexSubImage2D"); | |
315 glTexSubImage2D( | |
316 GL_TEXTURE_2D, | |
317 tex_params.level, | |
318 tex_params.xoffset, | |
319 tex_params.yoffset, | |
320 tex_params.width, | |
321 tex_params.height, | |
322 tex_params.format, | |
323 tex_params.type, | |
324 data); | |
325 } | |
326 | |
327 texture_upload_count_++; | |
328 total_texture_upload_time_ += base::TimeTicks::HighResNow() - begin_time; | |
329 } | |
330 | |
331 } // namespace gfx | |
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