| // 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 "webkit/common/gpu/grcontext_for_webgraphicscontext3d.h" |
| #include "webkit/common/gpu/managed_memory_policy_convert.h" |
| |
| namespace webkit { |
| namespace gpu { |
| |
| class ContextProviderInProcess::LostContextCallbackProxy |
| : public WebKit::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_; |
| }; |
| |
| class ContextProviderInProcess::SwapBuffersCompleteCallbackProxy |
| : public WebKit::WebGraphicsContext3D:: |
| WebGraphicsSwapBuffersCompleteCallbackCHROMIUM { |
| public: |
| explicit SwapBuffersCompleteCallbackProxy(ContextProviderInProcess* provider) |
| : provider_(provider) { |
| provider_->context3d_->setSwapBuffersCompleteCallbackCHROMIUM(this); |
| } |
| |
| virtual ~SwapBuffersCompleteCallbackProxy() { |
| provider_->context3d_->setSwapBuffersCompleteCallbackCHROMIUM(NULL); |
| } |
| |
| virtual void onSwapBuffersComplete() { |
| provider_->OnSwapBuffersComplete(); |
| } |
| |
| private: |
| ContextProviderInProcess* provider_; |
| }; |
| |
| class ContextProviderInProcess::MemoryAllocationCallbackProxy |
| : public WebKit::WebGraphicsContext3D:: |
| WebGraphicsMemoryAllocationChangedCallbackCHROMIUM { |
| public: |
| explicit MemoryAllocationCallbackProxy(ContextProviderInProcess* provider) |
| : provider_(provider) { |
| provider_->context3d_->setMemoryAllocationChangedCallbackCHROMIUM(this); |
| } |
| |
| virtual ~MemoryAllocationCallbackProxy() { |
| provider_->context3d_->setMemoryAllocationChangedCallbackCHROMIUM(NULL); |
| } |
| |
| virtual void onMemoryAllocationChanged( |
| WebKit::WebGraphicsMemoryAllocation allocation) { |
| provider_->OnMemoryAllocationChanged(allocation); |
| } |
| |
| 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() { |
| WebKit::WebGraphicsContext3D::Attributes attributes; |
| attributes.depth = false; |
| attributes.stencil = true; |
| attributes.antialias = false; |
| attributes.shareResources = true; |
| attributes.noAutomaticFlushes = true; |
| |
| return Create( |
| WebGraphicsContext3DInProcessCommandBufferImpl::CreateOffscreenContext( |
| attributes), "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()); |
| } |
| |
| 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_->makeContextCurrent()) |
| return false; |
| |
| 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)); |
| swap_buffers_complete_callback_proxy_.reset( |
| new SwapBuffersCompleteCallbackProxy(this)); |
| memory_allocation_callback_proxy_.reset( |
| new MemoryAllocationCallbackProxy(this)); |
| return true; |
| } |
| |
| cc::ContextProvider::Capabilities |
| ContextProviderInProcess::ContextCapabilities() { |
| // We always use a WebGraphicsContext3DInProcessCommandBufferImpl which |
| // provides the following capabilities: |
| Capabilities caps; |
| caps.bind_uniform_location = true; |
| caps.discard_backbuffer = true; |
| caps.map_image = true; |
| caps.map_sub = true; |
| caps.set_visibility = true; |
| caps.shallow_flush = true; |
| caps.texture_format_bgra8888 = true; |
| caps.texture_rectangle = true; |
| |
| WebKit::WebString extensions = |
| context3d_->getString(0x1F03 /* GL_EXTENSIONS */); |
| std::vector<std::string> extension_list; |
| base::SplitString(extensions.utf8(), ' ', &extension_list); |
| std::set<std::string> extension_set(extension_list.begin(), |
| extension_list.end()); |
| |
| caps.post_sub_buffer = extension_set.count("GL_CHROMIUM_post_sub_buffer") > 0; |
| return caps; |
| } |
| |
| WebKit::WebGraphicsContext3D* ContextProviderInProcess::Context3d() { |
| DCHECK(context3d_); |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| return context3d_.get(); |
| } |
| |
| class GrContext* ContextProviderInProcess::GrContext() { |
| DCHECK(context3d_); |
| 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(); |
| } |
| |
| void ContextProviderInProcess::VerifyContexts() { |
| DCHECK(context3d_); |
| DCHECK(lost_context_callback_proxy_); // Is bound to thread. |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| if (context3d_->isContextLost()) |
| OnLostContext(); |
| } |
| |
| 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(); |
| } |
| |
| void ContextProviderInProcess::OnSwapBuffersComplete() { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| if (!swap_buffers_complete_callback_.is_null()) |
| swap_buffers_complete_callback_.Run(); |
| } |
| |
| void ContextProviderInProcess::OnMemoryAllocationChanged( |
| const WebKit::WebGraphicsMemoryAllocation& allocation) { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| |
| if (gr_context_) { |
| bool nonzero_allocation = !!allocation.gpuResourceSizeInBytes; |
| gr_context_->SetMemoryLimit(nonzero_allocation); |
| } |
| |
| if (memory_policy_changed_callback_.is_null()) |
| return; |
| |
| bool discard_backbuffer_when_not_visible; |
| cc::ManagedMemoryPolicy policy = |
| ManagedMemoryPolicyConvert::Convert(allocation, |
| &discard_backbuffer_when_not_visible); |
| |
| memory_policy_changed_callback_.Run( |
| policy, discard_backbuffer_when_not_visible); |
| } |
| |
| 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::SetSwapBuffersCompleteCallback( |
| const SwapBuffersCompleteCallback& swap_buffers_complete_callback) { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| DCHECK(swap_buffers_complete_callback_.is_null() || |
| swap_buffers_complete_callback.is_null()); |
| swap_buffers_complete_callback_ = swap_buffers_complete_callback; |
| } |
| |
| void ContextProviderInProcess::SetMemoryPolicyChangedCallback( |
| const MemoryPolicyChangedCallback& memory_policy_changed_callback) { |
| DCHECK(context_thread_checker_.CalledOnValidThread()); |
| DCHECK(memory_policy_changed_callback_.is_null() || |
| memory_policy_changed_callback.is_null()); |
| memory_policy_changed_callback_ = memory_policy_changed_callback; |
| } |
| |
| } // namespace gpu |
| } // namespace webkit |