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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 #include "gpu/command_buffer/service/buffer_manager.h" | 5 #include "gpu/command_buffer/service/buffer_manager.h" |
6 #include <limits> | 6 #include <limits> |
7 #include "base/debug/trace_event.h" | 7 #include "base/debug/trace_event.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "gpu/command_buffer/common/gles2_cmd_utils.h" | 9 #include "gpu/command_buffer/common/gles2_cmd_utils.h" |
10 #include "gpu/command_buffer/service/feature_info.h" | |
11 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" | 10 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" |
12 #include "gpu/command_buffer/service/memory_tracking.h" | 11 #include "gpu/command_buffer/service/memory_tracking.h" |
13 #include "ui/gl/gl_bindings.h" | |
14 | 12 |
15 namespace gpu { | 13 namespace gpu { |
16 namespace gles2 { | 14 namespace gles2 { |
17 | 15 |
18 BufferManager::BufferManager( | 16 BufferManager::BufferManager(MemoryTracker* memory_tracker) |
19 MemoryTracker* memory_tracker, | |
20 FeatureInfo* feature_info) | |
21 : memory_tracker_( | 17 : memory_tracker_( |
22 new MemoryTypeTracker(memory_tracker, MemoryTracker::kManaged)), | 18 new MemoryTypeTracker(memory_tracker, MemoryTracker::kManaged)), |
23 feature_info_(feature_info), | |
24 allow_buffers_on_multiple_targets_(false), | 19 allow_buffers_on_multiple_targets_(false), |
25 buffer_info_count_(0), | 20 buffer_info_count_(0), |
26 have_context_(true), | 21 have_context_(true) { |
27 use_client_side_arrays_for_stream_buffers_( | |
28 feature_info ? feature_info->workarounds( | |
29 ).use_client_side_arrays_for_stream_buffers : 0) { | |
30 } | 22 } |
31 | 23 |
32 BufferManager::~BufferManager() { | 24 BufferManager::~BufferManager() { |
33 DCHECK(buffer_infos_.empty()); | 25 DCHECK(buffer_infos_.empty()); |
34 CHECK_EQ(buffer_info_count_, 0u); | 26 CHECK_EQ(buffer_info_count_, 0u); |
35 } | 27 } |
36 | 28 |
37 void BufferManager::Destroy(bool have_context) { | 29 void BufferManager::Destroy(bool have_context) { |
38 have_context_ = have_context; | 30 have_context_ = have_context; |
39 buffer_infos_.clear(); | 31 buffer_infos_.clear(); |
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71 --buffer_info_count_; | 63 --buffer_info_count_; |
72 } | 64 } |
73 | 65 |
74 Buffer::Buffer(BufferManager* manager, GLuint service_id) | 66 Buffer::Buffer(BufferManager* manager, GLuint service_id) |
75 : manager_(manager), | 67 : manager_(manager), |
76 deleted_(false), | 68 deleted_(false), |
77 service_id_(service_id), | 69 service_id_(service_id), |
78 target_(0), | 70 target_(0), |
79 size_(0), | 71 size_(0), |
80 usage_(GL_STATIC_DRAW), | 72 usage_(GL_STATIC_DRAW), |
81 shadowed_(false), | 73 shadowed_(false) { |
82 is_client_side_array_(false) { | |
83 manager_->StartTracking(this); | 74 manager_->StartTracking(this); |
84 } | 75 } |
85 | 76 |
86 Buffer::~Buffer() { | 77 Buffer::~Buffer() { |
87 if (manager_) { | 78 if (manager_) { |
88 if (manager_->have_context_) { | 79 if (manager_->have_context_) { |
89 GLuint id = service_id(); | 80 GLuint id = service_id(); |
90 glDeleteBuffersARB(1, &id); | 81 glDeleteBuffersARB(1, &id); |
91 } | 82 } |
92 manager_->StopTracking(this); | 83 manager_->StopTracking(this); |
93 manager_ = NULL; | 84 manager_ = NULL; |
94 } | 85 } |
95 } | 86 } |
96 | 87 |
97 void Buffer::SetInfo( | 88 void Buffer::SetInfo( |
98 GLsizeiptr size, GLenum usage, bool shadow, const GLvoid* data, | 89 GLsizeiptr size, GLenum usage, bool shadow) { |
99 bool is_client_side_array) { | |
100 usage_ = usage; | 90 usage_ = usage; |
101 is_client_side_array_ = is_client_side_array; | |
102 if (size != size_ || shadow != shadowed_) { | 91 if (size != size_ || shadow != shadowed_) { |
103 shadowed_ = shadow; | 92 shadowed_ = shadow; |
104 size_ = size; | 93 size_ = size; |
105 ClearCache(); | 94 ClearCache(); |
106 if (shadowed_) { | 95 if (shadowed_) { |
107 shadow_.reset(new int8[size]); | 96 shadow_.reset(new int8[size]); |
108 } else { | |
109 shadow_.reset(); | |
110 } | |
111 } | |
112 if (shadowed_) { | |
113 if (data) { | |
114 memcpy(shadow_.get(), data, size); | |
115 } else { | |
116 memset(shadow_.get(), 0, size); | 97 memset(shadow_.get(), 0, size); |
117 } | 98 } |
118 } | 99 } |
119 } | 100 } |
120 | 101 |
121 bool Buffer::CheckRange( | 102 bool Buffer::CheckRange( |
122 GLintptr offset, GLsizeiptr size) const { | 103 GLintptr offset, GLsizeiptr size) const { |
123 int32 end = 0; | 104 int32 end = 0; |
124 return offset >= 0 && size >= 0 && | 105 return offset >= 0 && size >= 0 && |
125 offset <= std::numeric_limits<int32>::max() && | 106 offset <= std::numeric_limits<int32>::max() && |
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229 for (BufferInfoMap::const_iterator it = buffer_infos_.begin(); | 210 for (BufferInfoMap::const_iterator it = buffer_infos_.begin(); |
230 it != buffer_infos_.end(); ++it) { | 211 it != buffer_infos_.end(); ++it) { |
231 if (it->second->service_id() == service_id) { | 212 if (it->second->service_id() == service_id) { |
232 *client_id = it->first; | 213 *client_id = it->first; |
233 return true; | 214 return true; |
234 } | 215 } |
235 } | 216 } |
236 return false; | 217 return false; |
237 } | 218 } |
238 | 219 |
239 bool BufferManager::IsUsageClientSideArray(GLenum usage) { | |
240 return usage == GL_STREAM_DRAW && use_client_side_arrays_for_stream_buffers_; | |
241 } | |
242 | |
243 void BufferManager::SetInfo( | 220 void BufferManager::SetInfo( |
244 Buffer* info, GLsizeiptr size, GLenum usage, const GLvoid* data) { | 221 Buffer* info, GLsizeiptr size, GLenum usage) { |
245 DCHECK(info); | 222 DCHECK(info); |
246 memory_tracker_->TrackMemFree(info->size()); | 223 memory_tracker_->TrackMemFree(info->size()); |
247 bool is_client_side_array = IsUsageClientSideArray(usage); | 224 info->SetInfo(size, |
248 bool shadow = info->target() == GL_ELEMENT_ARRAY_BUFFER || | 225 usage, |
249 allow_buffers_on_multiple_targets_ || | 226 info->target() == GL_ELEMENT_ARRAY_BUFFER || |
250 is_client_side_array; | 227 allow_buffers_on_multiple_targets_); |
251 info->SetInfo(size, usage, shadow, data, is_client_side_array); | |
252 memory_tracker_->TrackMemAlloc(info->size()); | 228 memory_tracker_->TrackMemAlloc(info->size()); |
253 } | 229 } |
254 | 230 |
255 void BufferManager::DoBufferData( | |
256 GLES2Decoder* decoder, | |
257 Buffer* buffer, | |
258 GLsizeiptr size, | |
259 GLenum usage, | |
260 const GLvoid* data) { | |
261 // Clear the buffer to 0 if no initial data was passed in. | |
262 scoped_array<int8> zero; | |
263 if (!data) { | |
264 zero.reset(new int8[size]); | |
265 memset(zero.get(), 0, size); | |
266 data = zero.get(); | |
267 } | |
268 | |
269 decoder->CopyRealGLErrorsToWrapper(); | |
270 if (IsUsageClientSideArray(usage)) { | |
271 glBufferData(buffer->target(), 0, NULL, usage); | |
272 } else { | |
273 glBufferData(buffer->target(), size, data, usage); | |
274 } | |
275 GLenum error = decoder->PeekGLError(); | |
276 if (error == GL_NO_ERROR) { | |
277 SetInfo(buffer, size, usage, data); | |
278 } else { | |
279 SetInfo(buffer, 0, usage, NULL); | |
280 } | |
281 } | |
282 | |
283 void BufferManager::DoBufferSubData( | |
284 GLES2Decoder* decoder, | |
285 Buffer* buffer, | |
286 GLintptr offset, | |
287 GLsizeiptr size, | |
288 const GLvoid* data) { | |
289 if (!buffer->SetRange(offset, size, data)) { | |
290 decoder->SetGLError(GL_INVALID_VALUE, "glBufferSubData", "out of range"); | |
291 return; | |
292 } | |
293 | |
294 if (!buffer->IsClientSideArray()) { | |
295 glBufferSubData(buffer->target(), offset, size, data); | |
296 } | |
297 } | |
298 | |
299 bool BufferManager::SetTarget(Buffer* info, GLenum target) { | 231 bool BufferManager::SetTarget(Buffer* info, GLenum target) { |
300 // Check that we are not trying to bind it to a different target. | 232 // Check that we are not trying to bind it to a different target. |
301 if (info->target() != 0 && info->target() != target && | 233 if (info->target() != 0 && info->target() != target && |
302 !allow_buffers_on_multiple_targets_) { | 234 !allow_buffers_on_multiple_targets_) { |
303 return false; | 235 return false; |
304 } | 236 } |
305 if (info->target() == 0) { | 237 if (info->target() == 0) { |
306 info->set_target(target); | 238 info->set_target(target); |
307 } | 239 } |
308 return true; | 240 return true; |
309 } | 241 } |
310 | 242 |
311 } // namespace gles2 | 243 } // namespace gles2 |
312 } // namespace gpu | 244 } // namespace gpu |
313 | 245 |
314 | 246 |
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