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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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