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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 "webkit/common/gpu/context_provider_in_process.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/callback_helpers.h" | |
9 #include "base/strings/stringprintf.h" | |
10 #include "cc/output/managed_memory_policy.h" | |
11 #include "gpu/blink/webgraphicscontext3d_in_process_command_buffer_impl.h" | |
12 #include "gpu/command_buffer/client/gles2_implementation.h" | |
13 #include "webkit/common/gpu/grcontext_for_webgraphicscontext3d.h" | |
14 | |
15 using gpu_blink::WebGraphicsContext3DInProcessCommandBufferImpl; | |
16 | |
17 namespace webkit { | |
18 namespace gpu { | |
19 | |
20 class ContextProviderInProcess::LostContextCallbackProxy | |
21 : public blink::WebGraphicsContext3D::WebGraphicsContextLostCallback { | |
22 public: | |
23 explicit LostContextCallbackProxy(ContextProviderInProcess* provider) | |
24 : provider_(provider) { | |
25 provider_->context3d_->setContextLostCallback(this); | |
26 } | |
27 | |
28 virtual ~LostContextCallbackProxy() { | |
29 provider_->context3d_->setContextLostCallback(NULL); | |
30 } | |
31 | |
32 virtual void onContextLost() { | |
33 provider_->OnLostContext(); | |
34 } | |
35 | |
36 private: | |
37 ContextProviderInProcess* provider_; | |
38 }; | |
39 | |
40 // static | |
41 scoped_refptr<ContextProviderInProcess> ContextProviderInProcess::Create( | |
42 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d, | |
43 const std::string& debug_name) { | |
44 if (!context3d) | |
45 return NULL; | |
46 return new ContextProviderInProcess(context3d.Pass(), debug_name); | |
47 } | |
48 | |
49 // static | |
50 scoped_refptr<ContextProviderInProcess> | |
51 ContextProviderInProcess::CreateOffscreen( | |
52 bool lose_context_when_out_of_memory) { | |
53 blink::WebGraphicsContext3D::Attributes attributes; | |
54 attributes.depth = false; | |
55 attributes.stencil = true; | |
56 attributes.antialias = false; | |
57 attributes.shareResources = true; | |
58 attributes.noAutomaticFlushes = true; | |
59 | |
60 return Create( | |
61 WebGraphicsContext3DInProcessCommandBufferImpl::CreateOffscreenContext( | |
62 attributes, lose_context_when_out_of_memory), | |
63 "Offscreen"); | |
64 } | |
65 | |
66 ContextProviderInProcess::ContextProviderInProcess( | |
67 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d, | |
68 const std::string& debug_name) | |
69 : context3d_(context3d.Pass()), | |
70 destroyed_(false), | |
71 debug_name_(debug_name) { | |
72 DCHECK(main_thread_checker_.CalledOnValidThread()); | |
73 DCHECK(context3d_); | |
74 context_thread_checker_.DetachFromThread(); | |
75 } | |
76 | |
77 ContextProviderInProcess::~ContextProviderInProcess() { | |
78 DCHECK(main_thread_checker_.CalledOnValidThread() || | |
79 context_thread_checker_.CalledOnValidThread()); | |
80 } | |
81 | |
82 blink::WebGraphicsContext3D* ContextProviderInProcess::WebContext3D() { | |
83 DCHECK(lost_context_callback_proxy_); // Is bound to thread. | |
84 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
85 | |
86 return context3d_.get(); | |
87 } | |
88 | |
89 bool ContextProviderInProcess::BindToCurrentThread() { | |
90 DCHECK(context3d_); | |
91 | |
92 // This is called on the thread the context will be used. | |
93 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
94 | |
95 if (lost_context_callback_proxy_) | |
96 return true; | |
97 | |
98 if (!context3d_->InitializeOnCurrentThread()) | |
99 return false; | |
100 | |
101 InitializeCapabilities(); | |
102 | |
103 std::string unique_context_name = | |
104 base::StringPrintf("%s-%p", debug_name_.c_str(), context3d_.get()); | |
105 context3d_->traceBeginCHROMIUM("gpu_toplevel", | |
106 unique_context_name.c_str()); | |
107 | |
108 lost_context_callback_proxy_.reset(new LostContextCallbackProxy(this)); | |
109 return true; | |
110 } | |
111 | |
112 void ContextProviderInProcess::DetachFromThread() { | |
113 context_thread_checker_.DetachFromThread(); | |
114 } | |
115 | |
116 void ContextProviderInProcess::InitializeCapabilities() { | |
117 capabilities_.gpu = context3d_->GetImplementation()->capabilities(); | |
118 | |
119 size_t mapped_memory_limit = context3d_->GetMappedMemoryLimit(); | |
120 capabilities_.max_transfer_buffer_usage_bytes = | |
121 mapped_memory_limit == | |
122 WebGraphicsContext3DInProcessCommandBufferImpl::kNoLimit | |
123 ? std::numeric_limits<size_t>::max() | |
124 : mapped_memory_limit; | |
125 } | |
126 | |
127 cc::ContextProvider::Capabilities | |
128 ContextProviderInProcess::ContextCapabilities() { | |
129 DCHECK(lost_context_callback_proxy_); // Is bound to thread. | |
130 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
131 return capabilities_; | |
132 } | |
133 | |
134 ::gpu::gles2::GLES2Interface* ContextProviderInProcess::ContextGL() { | |
135 DCHECK(context3d_); | |
136 DCHECK(lost_context_callback_proxy_); // Is bound to thread. | |
137 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
138 | |
139 return context3d_->GetGLInterface(); | |
140 } | |
141 | |
142 ::gpu::ContextSupport* ContextProviderInProcess::ContextSupport() { | |
143 DCHECK(context3d_); | |
144 if (!lost_context_callback_proxy_) | |
145 return NULL; // Not bound to anything. | |
146 | |
147 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
148 | |
149 return context3d_->GetContextSupport(); | |
150 } | |
151 | |
152 class GrContext* ContextProviderInProcess::GrContext() { | |
153 DCHECK(lost_context_callback_proxy_); // Is bound to thread. | |
154 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
155 | |
156 if (gr_context_) | |
157 return gr_context_->get(); | |
158 | |
159 gr_context_.reset(new GrContextForWebGraphicsContext3D(context3d_.get())); | |
160 return gr_context_->get(); | |
161 } | |
162 | |
163 void ContextProviderInProcess::SetupLock() { | |
164 context3d_->SetLock(&context_lock_); | |
165 } | |
166 | |
167 base::Lock* ContextProviderInProcess::GetLock() { | |
168 return &context_lock_; | |
169 } | |
170 | |
171 bool ContextProviderInProcess::IsContextLost() { | |
172 DCHECK(lost_context_callback_proxy_); // Is bound to thread. | |
173 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
174 | |
175 return context3d_->isContextLost(); | |
176 } | |
177 | |
178 void ContextProviderInProcess::VerifyContexts() { | |
179 DCHECK(lost_context_callback_proxy_); // Is bound to thread. | |
180 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
181 | |
182 if (context3d_->isContextLost()) | |
183 OnLostContext(); | |
184 } | |
185 | |
186 void ContextProviderInProcess::DeleteCachedResources() { | |
187 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
188 | |
189 if (gr_context_) | |
190 gr_context_->FreeGpuResources(); | |
191 } | |
192 | |
193 void ContextProviderInProcess::OnLostContext() { | |
194 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
195 { | |
196 base::AutoLock lock(destroyed_lock_); | |
197 if (destroyed_) | |
198 return; | |
199 destroyed_ = true; | |
200 } | |
201 if (!lost_context_callback_.is_null()) | |
202 base::ResetAndReturn(&lost_context_callback_).Run(); | |
203 if (gr_context_) | |
204 gr_context_->OnLostContext(); | |
205 } | |
206 | |
207 bool ContextProviderInProcess::DestroyedOnMainThread() { | |
208 DCHECK(main_thread_checker_.CalledOnValidThread()); | |
209 | |
210 base::AutoLock lock(destroyed_lock_); | |
211 return destroyed_; | |
212 } | |
213 | |
214 void ContextProviderInProcess::SetLostContextCallback( | |
215 const LostContextCallback& lost_context_callback) { | |
216 DCHECK(context_thread_checker_.CalledOnValidThread()); | |
217 DCHECK(lost_context_callback_.is_null() || | |
218 lost_context_callback.is_null()); | |
219 lost_context_callback_ = lost_context_callback; | |
220 } | |
221 | |
222 void ContextProviderInProcess::SetMemoryPolicyChangedCallback( | |
223 const MemoryPolicyChangedCallback& memory_policy_changed_callback) { | |
224 // There's no memory manager for the in-process implementation. | |
225 } | |
226 | |
227 } // namespace gpu | |
228 } // namespace webkit | |
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