| // Copyright 2014 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 "services/ui/surfaces/surfaces_context_provider.h" |
| |
| #include <stddef.h> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/command_line.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "build/build_config.h" |
| #include "cc/output/context_cache_controller.h" |
| #include "gpu/command_buffer/client/gles2_cmd_helper.h" |
| #include "gpu/command_buffer/client/gles2_implementation.h" |
| #include "gpu/command_buffer/client/shared_memory_limits.h" |
| #include "gpu/command_buffer/client/transfer_buffer.h" |
| #include "gpu/ipc/client/command_buffer_proxy_impl.h" |
| #include "gpu/ipc/client/gpu_channel_host.h" |
| #include "services/ui/common/switches.h" |
| #include "services/ui/surfaces/surfaces_context_provider_delegate.h" |
| #include "ui/gl/gpu_preference.h" |
| #include "url/gurl.h" |
| |
| namespace ui { |
| |
| SurfacesContextProvider::SurfacesContextProvider( |
| gfx::AcceleratedWidget widget, |
| scoped_refptr<gpu::GpuChannelHost> gpu_channel) |
| : delegate_(nullptr), |
| widget_(widget), |
| task_runner_(base::ThreadTaskRunnerHandle::Get()) { |
| gpu::CommandBufferProxyImpl* shared_command_buffer = nullptr; |
| gpu::GpuStreamId stream_id = gpu::GpuStreamId::GPU_STREAM_DEFAULT; |
| gpu::GpuStreamPriority stream_priority = gpu::GpuStreamPriority::NORMAL; |
| gpu::gles2::ContextCreationAttribHelper attributes; |
| attributes.alpha_size = -1; |
| attributes.depth_size = 0; |
| attributes.stencil_size = 0; |
| attributes.samples = 0; |
| attributes.sample_buffers = 0; |
| attributes.bind_generates_resource = false; |
| attributes.lose_context_when_out_of_memory = true; |
| GURL active_url; |
| command_buffer_proxy_impl_ = gpu::CommandBufferProxyImpl::Create( |
| std::move(gpu_channel), widget, shared_command_buffer, stream_id, |
| stream_priority, attributes, active_url, task_runner_); |
| CHECK(command_buffer_proxy_impl_); |
| command_buffer_proxy_impl_->SetSwapBuffersCompletionCallback( |
| base::Bind(&SurfacesContextProvider::OnGpuSwapBuffersCompleted, |
| base::Unretained(this))); |
| command_buffer_proxy_impl_->SetUpdateVSyncParametersCallback( |
| base::Bind(&SurfacesContextProvider::OnUpdateVSyncParameters, |
| base::Unretained(this))); |
| } |
| |
| void SurfacesContextProvider::SetDelegate( |
| SurfacesContextProviderDelegate* delegate) { |
| DCHECK(!delegate_); |
| delegate_ = delegate; |
| } |
| |
| // This routine needs to be safe to call more than once. |
| // This is called when we have an accelerated widget. |
| bool SurfacesContextProvider::BindToCurrentThread() { |
| if (implementation_) |
| return true; |
| |
| // SurfacesContextProvider should always live on the same thread as the |
| // Window Manager. |
| DCHECK(CalledOnValidThread()); |
| if (!command_buffer_proxy_impl_) |
| return false; |
| gpu::GpuControl* gpu_control = command_buffer_proxy_impl_.get(); |
| gpu::CommandBuffer* command_buffer = command_buffer_proxy_impl_.get(); |
| |
| gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(command_buffer)); |
| constexpr gpu::SharedMemoryLimits default_limits; |
| if (!gles2_helper_->Initialize(default_limits.command_buffer_size)) |
| return false; |
| gles2_helper_->SetAutomaticFlushes(false); |
| transfer_buffer_.reset(new gpu::TransferBuffer(gles2_helper_.get())); |
| capabilities_ = gpu_control->GetCapabilities(); |
| bool bind_generates_resource = |
| !!capabilities_.bind_generates_resource_chromium; |
| // TODO(piman): Some contexts (such as compositor) want this to be true, so |
| // this needs to be a public parameter. |
| bool lose_context_when_out_of_memory = false; |
| bool support_client_side_arrays = false; |
| implementation_.reset(new gpu::gles2::GLES2Implementation( |
| gles2_helper_.get(), NULL, transfer_buffer_.get(), |
| bind_generates_resource, lose_context_when_out_of_memory, |
| support_client_side_arrays, gpu_control)); |
| cache_controller_.reset( |
| new cc::ContextCacheController(implementation_.get(), task_runner_)); |
| return implementation_->Initialize( |
| default_limits.start_transfer_buffer_size, |
| default_limits.min_transfer_buffer_size, |
| default_limits.max_transfer_buffer_size, |
| default_limits.mapped_memory_reclaim_limit); |
| } |
| |
| gpu::gles2::GLES2Interface* SurfacesContextProvider::ContextGL() { |
| DCHECK(implementation_); |
| return implementation_.get(); |
| } |
| |
| gpu::ContextSupport* SurfacesContextProvider::ContextSupport() { |
| return implementation_.get(); |
| } |
| |
| class GrContext* SurfacesContextProvider::GrContext() { |
| return NULL; |
| } |
| |
| cc::ContextCacheController* SurfacesContextProvider::CacheController() { |
| return cache_controller_.get(); |
| } |
| |
| void SurfacesContextProvider::InvalidateGrContext(uint32_t state) {} |
| |
| gpu::Capabilities SurfacesContextProvider::ContextCapabilities() { |
| return capabilities_; |
| } |
| |
| base::Lock* SurfacesContextProvider::GetLock() { |
| // This context provider is not used on multiple threads. |
| NOTREACHED(); |
| return nullptr; |
| } |
| |
| void SurfacesContextProvider::SetLostContextCallback( |
| const LostContextCallback& lost_context_callback) { |
| implementation_->SetLostContextCallback(lost_context_callback); |
| } |
| |
| SurfacesContextProvider::~SurfacesContextProvider() { |
| implementation_->Flush(); |
| implementation_.reset(); |
| transfer_buffer_.reset(); |
| gles2_helper_.reset(); |
| command_buffer_proxy_impl_.reset(); |
| } |
| |
| void SurfacesContextProvider::OnGpuSwapBuffersCompleted( |
| const std::vector<ui::LatencyInfo>& latency_info, |
| gfx::SwapResult result, |
| const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) { |
| if (!swap_buffers_completion_callback_.is_null()) { |
| swap_buffers_completion_callback_.Run(result); |
| } |
| } |
| |
| void SurfacesContextProvider::OnUpdateVSyncParameters( |
| base::TimeTicks timebase, |
| base::TimeDelta interval) { |
| if (delegate_) |
| delegate_->OnVSyncParametersUpdated(timebase, interval); |
| } |
| |
| void SurfacesContextProvider::SetSwapBuffersCompletionCallback( |
| gl::GLSurface::SwapCompletionCallback callback) { |
| swap_buffers_completion_callback_ = callback; |
| } |
| |
| } // namespace ui |