src/content/browser/android/in_process/synchronous_compositor_factory_impl.cc

   1 // Copyright 2014 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 "content/browser/android/in_process/synchronous_compositor_factory_impl.h"
   6
   7 #include "content/browser/android/in_process/synchronous_compositor_output_surface.h"
   8 #include "content/public/browser/browser_thread.h"
   9 #include "content/renderer/gpu/frame_swap_message_queue.h"
  10 #include "gpu/command_buffer/client/gl_in_process_context.h"
  11 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  12 #include "ui/gl/android/surface_texture.h"
  13 #include "ui/gl/gl_surface.h"
  14 #include "ui/gl/gl_surface_stub.h"
  15 #include "webkit/common/gpu/context_provider_in_process.h"
  16 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
  17
  18 using webkit::gpu::ContextProviderWebContext;
  19
  20 namespace content {
  21
  22 namespace {
  23
  24 blink::WebGraphicsContext3D::Attributes GetDefaultAttribs() {
  25   blink::WebGraphicsContext3D::Attributes attributes;
  26   attributes.antialias = false;
  27   attributes.depth = false;
  28   attributes.stencil = false;
  29   attributes.shareResources = true;
  30   attributes.noAutomaticFlushes = true;
  31
  32   return attributes;
  33 }
  34
  35 using webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl;
  36 using webkit::gpu::WebGraphicsContext3DImpl;
  37
  38 scoped_ptr<gpu::GLInProcessContext> CreateOffscreenContext(
  39     const blink::WebGraphicsContext3D::Attributes& attributes) {
  40   const gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
  41
  42   gpu::gles2::ContextCreationAttribHelper in_process_attribs;
  43   WebGraphicsContext3DImpl::ConvertAttributes(
  44       attributes, &in_process_attribs);
  45   in_process_attribs.lose_context_when_out_of_memory = true;
  46
  47   scoped_ptr<gpu::GLInProcessContext> context(gpu::GLInProcessContext::Create(
  48       NULL /* service */,
  49       NULL /* surface */,
  50       true /* is_offscreen */,
  51       gfx::kNullAcceleratedWidget,
  52       gfx::Size(1, 1),
  53       NULL /* share_context */,
  54       false /* share_resources */,
  55       in_process_attribs,
  56       gpu_preference,
  57       gpu::GLInProcessContextSharedMemoryLimits()));
  58   return context.Pass();
  59 }
  60
  61 scoped_ptr<gpu::GLInProcessContext> CreateContext(
  62     scoped_refptr<gpu::InProcessCommandBuffer::Service> service,
  63     gpu::GLInProcessContext* share_context,
  64     const gpu::GLInProcessContextSharedMemoryLimits& mem_limits) {
  65   const gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
  66   gpu::gles2::ContextCreationAttribHelper in_process_attribs;
  67   WebGraphicsContext3DImpl::ConvertAttributes(
  68       GetDefaultAttribs(), &in_process_attribs);
  69   in_process_attribs.lose_context_when_out_of_memory = true;
  70
  71   scoped_ptr<gpu::GLInProcessContext> context(gpu::GLInProcessContext::Create(
  72       service,
  73       NULL /* surface */,
  74       false /* is_offscreen */,
  75       gfx::kNullAcceleratedWidget,
  76       gfx::Size(1, 1),
  77       share_context,
  78       false /* share_resources */,
  79       in_process_attribs,
  80       gpu_preference,
  81       mem_limits));
  82   return context.Pass();
  83 }
  84
  85 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> WrapContext(
  86     scoped_ptr<gpu::GLInProcessContext> context) {
  87   if (!context.get())
  88     return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>();
  89
  90   return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>(
  91       WebGraphicsContext3DInProcessCommandBufferImpl::WrapContext(
  92           context.Pass(), GetDefaultAttribs()));
  93 }
  94
  95 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  96 WrapContextWithAttributes(
  97     scoped_ptr<gpu::GLInProcessContext> context,
  98     const blink::WebGraphicsContext3D::Attributes& attributes) {
  99   if (!context.get())
 100     return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>();
 101
 102   return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>(
 103       WebGraphicsContext3DInProcessCommandBufferImpl::WrapContext(
 104           context.Pass(), attributes));
 105 }
 106
 107 class VideoContextProvider
 108     : public StreamTextureFactorySynchronousImpl::ContextProvider {
 109  public:
 110   VideoContextProvider(
 111       scoped_ptr<gpu::GLInProcessContext> gl_in_process_context)
 112       : gl_in_process_context_(gl_in_process_context.get()) {
 113
 114     context_provider_ = webkit::gpu::ContextProviderInProcess::Create(
 115         WrapContext(gl_in_process_context.Pass()),
 116         "Video-Offscreen-main-thread");
 117     context_provider_->BindToCurrentThread();
 118   }
 119
 120   virtual scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture(
 121       uint32 stream_id) OVERRIDE {
 122     return gl_in_process_context_->GetSurfaceTexture(stream_id);
 123   }
 124
 125   virtual gpu::gles2::GLES2Interface* ContextGL() OVERRIDE {
 126     return context_provider_->ContextGL();
 127   }
 128
 129  private:
 130   friend class base::RefCountedThreadSafe<VideoContextProvider>;
 131   virtual ~VideoContextProvider() {}
 132
 133   scoped_refptr<cc::ContextProvider> context_provider_;
 134   gpu::GLInProcessContext* gl_in_process_context_;
 135
 136   DISALLOW_COPY_AND_ASSIGN(VideoContextProvider);
 137 };
 138
 139 }  // namespace
 140
 141 using webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl;
 142
 143 SynchronousCompositorFactoryImpl::SynchronousCompositorFactoryImpl()
 144     : record_full_layer_(true),
 145       num_hardware_compositors_(0) {
 146   SynchronousCompositorFactory::SetInstance(this);
 147 }
 148
 149 SynchronousCompositorFactoryImpl::~SynchronousCompositorFactoryImpl() {}
 150
 151 scoped_refptr<base::MessageLoopProxy>
 152 SynchronousCompositorFactoryImpl::GetCompositorMessageLoop() {
 153   return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI);
 154 }
 155
 156 bool
 157 SynchronousCompositorFactoryImpl::RecordFullLayer() {
 158   return record_full_layer_;
 159 }
 160
 161 scoped_ptr<cc::OutputSurface>
 162 SynchronousCompositorFactoryImpl::CreateOutputSurface(
 163     int routing_id,
 164     scoped_refptr<content::FrameSwapMessageQueue> frame_swap_message_queue) {
 165   scoped_ptr<SynchronousCompositorOutputSurface> output_surface(
 166       new SynchronousCompositorOutputSurface(routing_id,
 167                                              frame_swap_message_queue));
 168   return output_surface.PassAs<cc::OutputSurface>();
 169 }
 170
 171 InputHandlerManagerClient*
 172 SynchronousCompositorFactoryImpl::GetInputHandlerManagerClient() {
 173   return synchronous_input_event_filter();
 174 }
 175
 176 scoped_refptr<ContextProviderWebContext>
 177 SynchronousCompositorFactoryImpl::CreateOffscreenContextProvider(
 178     const blink::WebGraphicsContext3D::Attributes& attributes,
 179     const std::string& debug_name) {
 180   scoped_ptr<gpu::GLInProcessContext> context =
 181       CreateOffscreenContext(attributes);
 182   return webkit::gpu::ContextProviderInProcess::Create(
 183       WrapContext(context.Pass()), debug_name);
 184 }
 185
 186 scoped_refptr<cc::ContextProvider> SynchronousCompositorFactoryImpl::
 187     CreateOnscreenContextProviderForCompositorThread() {
 188   DCHECK(service_);
 189
 190   if (!share_context_.get()) {
 191     share_context_ = CreateContext(
 192         service_, NULL, gpu::GLInProcessContextSharedMemoryLimits());
 193   }
 194   gpu::GLInProcessContextSharedMemoryLimits mem_limits;
 195   // This is half of what RenderWidget uses because synchronous compositor
 196   // pipeline is only one frame deep.
 197   mem_limits.mapped_memory_reclaim_limit = 6 * 1024 * 1024;
 198   return webkit::gpu::ContextProviderInProcess::Create(
 199       WrapContext(CreateContext(service_, share_context_.get(), mem_limits)),
 200       "Child-Compositor");
 201 }
 202
 203 gpu::GLInProcessContext* SynchronousCompositorFactoryImpl::GetShareContext() {
 204   DCHECK(share_context_.get());
 205   return share_context_.get();
 206 }
 207
 208 scoped_refptr<StreamTextureFactory>
 209 SynchronousCompositorFactoryImpl::CreateStreamTextureFactory(int frame_id) {
 210   scoped_refptr<StreamTextureFactorySynchronousImpl> factory(
 211       StreamTextureFactorySynchronousImpl::Create(
 212           base::Bind(
 213               &SynchronousCompositorFactoryImpl::TryCreateStreamTextureFactory,
 214               base::Unretained(this)),
 215           frame_id));
 216   return factory;
 217 }
 218
 219 blink::WebGraphicsContext3D*
 220 SynchronousCompositorFactoryImpl::CreateOffscreenGraphicsContext3D(
 221     const blink::WebGraphicsContext3D::Attributes& attributes) {
 222   return WrapContextWithAttributes(CreateOffscreenContext(attributes),
 223                                    attributes).release();
 224 }
 225
 226 void SynchronousCompositorFactoryImpl::CompositorInitializedHardwareDraw() {
 227   base::AutoLock lock(num_hardware_compositor_lock_);
 228   num_hardware_compositors_++;
 229 }
 230
 231 void SynchronousCompositorFactoryImpl::CompositorReleasedHardwareDraw() {
 232   base::AutoLock lock(num_hardware_compositor_lock_);
 233   DCHECK_GT(num_hardware_compositors_, 0u);
 234   num_hardware_compositors_--;
 235 }
 236
 237 bool SynchronousCompositorFactoryImpl::CanCreateMainThreadContext() {
 238   base::AutoLock lock(num_hardware_compositor_lock_);
 239   return num_hardware_compositors_ > 0;
 240 }
 241
 242 scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>
 243 SynchronousCompositorFactoryImpl::TryCreateStreamTextureFactory() {
 244   // Always fail creation even if |video_context_provider_| is not NULL.
 245   // This is to avoid synchronous calls that may deadlock. Setting
 246   // |video_context_provider_| to null is also not safe since it makes
 247   // synchronous destruction uncontrolled and possibly deadlock.
 248   if (!CanCreateMainThreadContext()) {
 249     return
 250         scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>();
 251   }
 252
 253   if (!video_context_provider_) {
 254     DCHECK(service_);
 255     DCHECK(share_context_.get());
 256
 257     video_context_provider_ = new VideoContextProvider(
 258         CreateContext(service_,
 259                       share_context_.get(),
 260                       gpu::GLInProcessContextSharedMemoryLimits()));
 261   }
 262   return video_context_provider_;
 263 }
 264
 265 void SynchronousCompositorFactoryImpl::SetDeferredGpuService(
 266     scoped_refptr<gpu::InProcessCommandBuffer::Service> service) {
 267   DCHECK(!service_);
 268   service_ = service;
 269 }
 270
 271 void SynchronousCompositorFactoryImpl::SetRecordFullDocument(
 272     bool record_full_document) {
 273   record_full_layer_ = record_full_document;
 274 }
 275
 276 }  // namespace content