| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "webkit/common/gpu/context_provider_in_process.h" |
| |
| #include <set> |
| |
| #include "base/bind.h" |
| #include "base/callback_helpers.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/stringprintf.h" |
| #include "cc/output/managed_memory_policy.h" |
| #include "gpu/command_buffer/client/gles2_implementation.h" |
| #include "webkit/common/gpu/grcontext_for_webgraphicscontext3d.h" |
| |
| namespace webkit { |
| namespace gpu { |
| |
| class ContextProviderInProcess::LostContextCallbackProxy |
| : public blink::WebGraphicsContext3D::WebGraphicsContextLostCallback { |
| public: |
| explicit LostContextCallbackProxy(ContextProviderInProcess* provider) |
| : provider_(provider) { |
| provider_->context3d_->setContextLostCallback(this); |
| } |
| |
| virtual ~LostContextCallbackProxy() { |
| provider_->context3d_->setContextLostCallback(NULL); |
| } |
| |
| virtual void onContextLost() { |
| provider_->OnLostContext(); |
| } |
| |
| private: |
| ContextProviderInProcess* provider_; |
| }; |
| |
| // static |
| scoped_refptr<ContextProviderInProcess> ContextProviderInProcess::Create( |
| scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d, |
| const std::string& debug_name) { |
| if (!context3d) |
| return NULL; |
| return new ContextProviderInProcess(context3d.Pass(), debug_name); |
| } |
| |
| // static |
| scoped_refptr<ContextProviderInProcess> |
| ContextProviderInProcess::CreateOffscreen( |
| bool lose_context_when_out_of_memory) { |
| blink::WebGraphicsContext3D::Attributes attributes; |
| attributes.depth = false; |
| attributes.stencil = true; |
| attributes.antialias = false; |
| attributes.shareResources = true; |
| attributes.noAutomaticFlushes = true; |
| |
| return Create( |
| WebGraphicsContext3DInProcessCommandBufferImpl::CreateOffscreenContext( |
| attributes, lose_context_when_out_of_memory), |
| "Offscreen"); |
| } |
| |
| ContextProviderInProcess::ContextProviderInProcess( |
| scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d, |
| const std::string& debug_name) |
| : context3d_(context3d.Pass()), |
| destroyed_(false), |
| debug_name_(debug_name) { |
| DCHECK(main_thread_checker_.CalledOnValidThread()); |
| DCHECK(context3d_); |
| context_thread_checker_.DetachFromThread(); |
| } |
| |
| ContextProviderInProcess::~ContextProviderInProcess() { |
| DCHECK(main_thread_checker_.CalledOnValidThread() || |
| context_thread_checker_.CalledOnValidThread()); |
| } |
| |
| blink::WebGraphicsContext3D* ContextProviderInProcess::WebContext3D() { |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| return context3d_.get(); |
| } |
| |
| bool ContextProviderInProcess::BindToCurrentThread() { |
| DCHECK(context3d_); |
| |
| // This is called on the thread the context will be used. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| if (lost_context_callback_proxy_) |
| return true; |
| |
| if (!context3d_->InitializeOnCurrentThread()) |
| return false; |
| |
| InitializeCapabilities(); |
| |
| std::string unique_context_name = |
| base::StringPrintf("%s-%p", debug_name_.c_str(), context3d_.get()); |
| context3d_->pushGroupMarkerEXT(unique_context_name.c_str()); |
| |
| lost_context_callback_proxy_.reset(new LostContextCallbackProxy(this)); |
| return true; |
| } |
| |
| void ContextProviderInProcess::InitializeCapabilities() { |
| capabilities_.gpu = context3d_->GetImplementation()->capabilities(); |
| |
| size_t mapped_memory_limit = context3d_->GetMappedMemoryLimit(); |
| capabilities_.max_transfer_buffer_usage_bytes = |
| mapped_memory_limit == |
| WebGraphicsContext3DInProcessCommandBufferImpl::kNoLimit |
| ? std::numeric_limits<size_t>::max() |
| : mapped_memory_limit; |
| } |
| |
| cc::ContextProvider::Capabilities |
| ContextProviderInProcess::ContextCapabilities() { |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| return capabilities_; |
| } |
| |
| ::gpu::gles2::GLES2Interface* ContextProviderInProcess::ContextGL() { |
| DCHECK(context3d_); |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| return context3d_->GetGLInterface(); |
| } |
| |
| ::gpu::ContextSupport* ContextProviderInProcess::ContextSupport() { |
| DCHECK(context3d_); |
| if (!lost_context_callback_proxy_) |
| return NULL; // Not bound to anything. |
| |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| return context3d_->GetContextSupport(); |
| } |
| |
| class GrContext* ContextProviderInProcess::GrContext() { |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| if (gr_context_) |
| return gr_context_->get(); |
| |
| gr_context_.reset( |
| new webkit::gpu::GrContextForWebGraphicsContext3D(context3d_.get())); |
| return gr_context_->get(); |
| } |
| |
| bool ContextProviderInProcess::IsContextLost() { |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| return context3d_->isContextLost(); |
| } |
| |
| void ContextProviderInProcess::VerifyContexts() { |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| if (context3d_->isContextLost()) |
| OnLostContext(); |
| } |
| |
| void ContextProviderInProcess::DeleteCachedResources() { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| if (gr_context_) |
| gr_context_->FreeGpuResources(); |
| } |
| |
| void ContextProviderInProcess::OnLostContext() { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| { |
| base::AutoLock lock(destroyed_lock_); |
| if (destroyed_) |
| return; |
| destroyed_ = true; |
| } |
| if (!lost_context_callback_.is_null()) |
| base::ResetAndReturn(&lost_context_callback_).Run(); |
| if (gr_context_) |
| gr_context_->OnLostContext(); |
| } |
| |
| bool ContextProviderInProcess::DestroyedOnMainThread() { |
| DCHECK(main_thread_checker_.CalledOnValidThread()); |
| |
| base::AutoLock lock(destroyed_lock_); |
| return destroyed_; |
| } |
| |
| void ContextProviderInProcess::SetLostContextCallback( |
| const LostContextCallback& lost_context_callback) { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| DCHECK(lost_context_callback_.is_null() || |
| lost_context_callback.is_null()); |
| lost_context_callback_ = lost_context_callback; |
| } |
| |
| void ContextProviderInProcess::SetMemoryPolicyChangedCallback( |
| const MemoryPolicyChangedCallback& memory_policy_changed_callback) { |
| // There's no memory manager for the in-process implementation. |
| } |
| |
| } // namespace gpu |
| } // namespace webkit |