src/content/browser/renderer_host/compositor_impl_android.cc

   1 // Copyright (c) 2012 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/renderer_host/compositor_impl_android.h"
   6
   7 #include <android/bitmap.h>
   8 #include <android/native_window_jni.h>
   9 #include <map>
  10
  11 #include "base/android/jni_android.h"
  12 #include "base/android/scoped_java_ref.h"
  13 #include "base/bind.h"
  14 #include "base/command_line.h"
  15 #include "base/lazy_instance.h"
  16 #include "base/logging.h"
  17 #include "base/single_thread_task_runner.h"
  18 #include "base/synchronization/lock.h"
  19 #include "base/threading/thread.h"
  20 #include "cc/input/input_handler.h"
  21 #include "cc/layers/layer.h"
  22 #include "cc/output/compositor_frame.h"
  23 #include "cc/output/context_provider.h"
  24 #include "cc/output/output_surface.h"
  25 #include "cc/resources/scoped_ui_resource.h"
  26 #include "cc/resources/ui_resource_bitmap.h"
  27 #include "cc/trees/layer_tree_host.h"
  28 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
  29 #include "content/browser/gpu/gpu_surface_tracker.h"
  30 #include "content/common/gpu/client/command_buffer_proxy_impl.h"
  31 #include "content/common/gpu/client/context_provider_command_buffer.h"
  32 #include "content/common/gpu/client/gl_helper.h"
  33 #include "content/common/gpu/client/gpu_channel_host.h"
  34 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  35 #include "content/common/gpu/gpu_process_launch_causes.h"
  36 #include "content/public/browser/android/compositor_client.h"
  37 #include "content/public/common/content_switches.h"
  38 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
  39 #include "third_party/khronos/GLES2/gl2.h"
  40 #include "third_party/khronos/GLES2/gl2ext.h"
  41 #include "ui/gfx/android/device_display_info.h"
  42 #include "ui/gfx/android/java_bitmap.h"
  43 #include "ui/gfx/frame_time.h"
  44 #include "webkit/common/gpu/context_provider_in_process.h"
  45 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
  46
  47 namespace gfx {
  48 class JavaBitmap;
  49 }
  50
  51 namespace {
  52
  53 // Used for drawing directly to the screen. Bypasses resizing and swaps.
  54 class DirectOutputSurface : public cc::OutputSurface {
  55  public:
  56   DirectOutputSurface(
  57       const scoped_refptr<cc::ContextProvider>& context_provider)
  58       : cc::OutputSurface(context_provider) {
  59     capabilities_.adjust_deadline_for_parent = false;
  60   }
  61
  62   virtual void Reshape(gfx::Size size, float scale_factor) OVERRIDE {
  63     surface_size_ = size;
  64   }
  65   virtual void SwapBuffers(cc::CompositorFrame*) OVERRIDE {
  66     context_provider_->Context3d()->shallowFlushCHROMIUM();
  67   }
  68 };
  69
  70 // Used to override capabilities_.adjust_deadline_for_parent to false
  71 class OutputSurfaceWithoutParent : public cc::OutputSurface {
  72  public:
  73   OutputSurfaceWithoutParent(
  74       const scoped_refptr<
  75         content::ContextProviderCommandBuffer>& context_provider)
  76       : cc::OutputSurface(context_provider) {
  77     capabilities_.adjust_deadline_for_parent = false;
  78   }
  79
  80   virtual void SwapBuffers(cc::CompositorFrame* frame) OVERRIDE {
  81     content::WebGraphicsContext3DCommandBufferImpl* command_buffer_context =
  82         static_cast<content::WebGraphicsContext3DCommandBufferImpl*>(
  83             context_provider_->Context3d());
  84     content::CommandBufferProxyImpl* command_buffer_proxy =
  85         command_buffer_context->GetCommandBufferProxy();
  86     DCHECK(command_buffer_proxy);
  87     command_buffer_proxy->SetLatencyInfo(frame->metadata.latency_info);
  88
  89     OutputSurface::SwapBuffers(frame);
  90   }
  91 };
  92
  93 static bool g_initialized = false;
  94 static base::Thread* g_impl_thread = NULL;
  95
  96 } // anonymous namespace
  97
  98 namespace content {
  99
 100 typedef std::map<int, base::android::ScopedJavaGlobalRef<jobject> >
 101     SurfaceMap;
 102 static base::LazyInstance<SurfaceMap>
 103     g_surface_map = LAZY_INSTANCE_INITIALIZER;
 104 static base::LazyInstance<base::Lock> g_surface_map_lock;
 105
 106 // static
 107 Compositor* Compositor::Create(CompositorClient* client) {
 108   return client ? new CompositorImpl(client) : NULL;
 109 }
 110
 111 // static
 112 void Compositor::Initialize() {
 113   DCHECK(!CompositorImpl::IsInitialized());
 114   g_initialized = true;
 115 }
 116
 117 // static
 118 bool CompositorImpl::IsInitialized() {
 119   return g_initialized;
 120 }
 121
 122 // static
 123 bool CompositorImpl::IsThreadingEnabled() {
 124   return g_impl_thread;
 125 }
 126
 127 // static
 128 jobject CompositorImpl::GetSurface(int surface_id) {
 129   base::AutoLock lock(g_surface_map_lock.Get());
 130   SurfaceMap* surfaces = g_surface_map.Pointer();
 131   SurfaceMap::iterator it = surfaces->find(surface_id);
 132   jobject jsurface = it == surfaces->end() ? NULL : it->second.obj();
 133
 134   LOG_IF(WARNING, !jsurface) << "No surface for surface id " << surface_id;
 135   return jsurface;
 136 }
 137
 138 CompositorImpl::CompositorImpl(CompositorClient* client)
 139     : root_layer_(cc::Layer::Create()),
 140       has_transparent_background_(false),
 141       window_(NULL),
 142       surface_id_(0),
 143       client_(client),
 144       weak_factory_(this) {
 145   DCHECK(client);
 146   ImageTransportFactoryAndroid::AddObserver(this);
 147 }
 148
 149 CompositorImpl::~CompositorImpl() {
 150   ImageTransportFactoryAndroid::RemoveObserver(this);
 151   // Clean-up any surface references.
 152   SetSurface(NULL);
 153 }
 154
 155 void CompositorImpl::Composite() {
 156   if (host_)
 157     host_->Composite(gfx::FrameTime::Now());
 158 }
 159
 160 void CompositorImpl::SetRootLayer(scoped_refptr<cc::Layer> root_layer) {
 161   root_layer_->RemoveAllChildren();
 162   root_layer_->AddChild(root_layer);
 163 }
 164
 165 void CompositorImpl::SetWindowSurface(ANativeWindow* window) {
 166   GpuSurfaceTracker* tracker = GpuSurfaceTracker::Get();
 167
 168   if (window_) {
 169     tracker->RemoveSurface(surface_id_);
 170     ANativeWindow_release(window_);
 171     window_ = NULL;
 172     surface_id_ = 0;
 173     SetVisible(false);
 174   }
 175
 176   if (window) {
 177     window_ = window;
 178     ANativeWindow_acquire(window);
 179     surface_id_ = tracker->AddSurfaceForNativeWidget(window);
 180     tracker->SetSurfaceHandle(
 181         surface_id_,
 182         gfx::GLSurfaceHandle(gfx::kNullPluginWindow, gfx::NATIVE_DIRECT));
 183     SetVisible(true);
 184   }
 185 }
 186
 187 void CompositorImpl::SetSurface(jobject surface) {
 188   JNIEnv* env = base::android::AttachCurrentThread();
 189   base::android::ScopedJavaLocalRef<jobject> j_surface(env, surface);
 190
 191   // First, cleanup any existing surface references.
 192   if (surface_id_) {
 193     DCHECK(g_surface_map.Get().find(surface_id_) !=
 194            g_surface_map.Get().end());
 195     base::AutoLock lock(g_surface_map_lock.Get());
 196     g_surface_map.Get().erase(surface_id_);
 197   }
 198   SetWindowSurface(NULL);
 199
 200   // Now, set the new surface if we have one.
 201   ANativeWindow* window = NULL;
 202   if (surface)
 203     window = ANativeWindow_fromSurface(env, surface);
 204   if (window) {
 205     SetWindowSurface(window);
 206     ANativeWindow_release(window);
 207     {
 208       base::AutoLock lock(g_surface_map_lock.Get());
 209       g_surface_map.Get().insert(std::make_pair(surface_id_, j_surface));
 210     }
 211   }
 212 }
 213
 214 void CompositorImpl::SetVisible(bool visible) {
 215   if (!visible) {
 216     ui_resource_map_.clear();
 217     host_.reset();
 218     client_->UIResourcesAreInvalid();
 219   } else if (!host_) {
 220     cc::LayerTreeSettings settings;
 221     settings.refresh_rate = 60.0;
 222     settings.impl_side_painting = false;
 223     settings.allow_antialiasing = false;
 224     settings.calculate_top_controls_position = false;
 225     settings.top_controls_height = 0.f;
 226     settings.use_memory_management = false;
 227     settings.highp_threshold_min = 2048;
 228
 229     scoped_refptr<base::SingleThreadTaskRunner> impl_thread_task_runner =
 230         g_impl_thread ? g_impl_thread->message_loop()->message_loop_proxy()
 231                       : NULL;
 232
 233     host_ = cc::LayerTreeHost::Create(
 234         this, NULL, settings, impl_thread_task_runner);
 235     host_->SetRootLayer(root_layer_);
 236
 237     host_->SetVisible(true);
 238     host_->SetLayerTreeHostClientReady();
 239     host_->SetViewportSize(size_);
 240     host_->set_has_transparent_background(has_transparent_background_);
 241     // Need to recreate the UI resources because a new LayerTreeHost has been
 242     // created.
 243     client_->DidLoseUIResources();
 244   }
 245 }
 246
 247 void CompositorImpl::setDeviceScaleFactor(float factor) {
 248   if (host_)
 249     host_->SetDeviceScaleFactor(factor);
 250 }
 251
 252 void CompositorImpl::SetWindowBounds(const gfx::Size& size) {
 253   if (size_ == size)
 254     return;
 255
 256   size_ = size;
 257   if (host_)
 258     host_->SetViewportSize(size);
 259   root_layer_->SetBounds(size);
 260 }
 261
 262 bool CompositorImpl::CompositeAndReadback(void *pixels, const gfx::Rect& rect) {
 263   if (host_)
 264     return host_->CompositeAndReadback(pixels, rect);
 265   else
 266     return false;
 267 }
 268
 269 cc::UIResourceId CompositorImpl::GenerateUIResource(
 270     const cc::UIResourceBitmap& bitmap) {
 271   if (!host_)
 272     return 0;
 273   scoped_ptr<cc::ScopedUIResource> ui_resource =
 274       cc::ScopedUIResource::Create(host_.get(), bitmap);
 275   cc::UIResourceId id = ui_resource->id();
 276   ui_resource_map_.set(id, ui_resource.Pass());
 277   return id;
 278 }
 279
 280 void CompositorImpl::DeleteUIResource(cc::UIResourceId resource_id) {
 281   UIResourceMap::iterator it = ui_resource_map_.find(resource_id);
 282   if (it != ui_resource_map_.end())
 283     ui_resource_map_.erase(it);
 284 }
 285
 286 WebKit::WebGLId CompositorImpl::GenerateTexture(gfx::JavaBitmap& bitmap) {
 287   unsigned int texture_id = BuildBasicTexture();
 288   WebKit::WebGraphicsContext3D* context =
 289       ImageTransportFactoryAndroid::GetInstance()->GetContext3D();
 290   if (texture_id == 0 || context->isContextLost() ||
 291       !context->makeContextCurrent())
 292     return 0;
 293   WebKit::WebGLId format = GetGLFormatForBitmap(bitmap);
 294   WebKit::WebGLId type = GetGLTypeForBitmap(bitmap);
 295
 296   context->texImage2D(GL_TEXTURE_2D,
 297                       0,
 298                       format,
 299                       bitmap.size().width(),
 300                       bitmap.size().height(),
 301                       0,
 302                       format,
 303                       type,
 304                       bitmap.pixels());
 305   context->shallowFlushCHROMIUM();
 306   return texture_id;
 307 }
 308
 309 WebKit::WebGLId CompositorImpl::GenerateCompressedTexture(gfx::Size& size,
 310                                                           int data_size,
 311                                                           void* data) {
 312   unsigned int texture_id = BuildBasicTexture();
 313   WebKit::WebGraphicsContext3D* context =
 314         ImageTransportFactoryAndroid::GetInstance()->GetContext3D();
 315   if (texture_id == 0 || context->isContextLost() ||
 316       !context->makeContextCurrent())
 317     return 0;
 318   context->compressedTexImage2D(GL_TEXTURE_2D,
 319                                 0,
 320                                 GL_ETC1_RGB8_OES,
 321                                 size.width(),
 322                                 size.height(),
 323                                 0,
 324                                 data_size,
 325                                 data);
 326   context->shallowFlushCHROMIUM();
 327   return texture_id;
 328 }
 329
 330 void CompositorImpl::DeleteTexture(WebKit::WebGLId texture_id) {
 331   WebKit::WebGraphicsContext3D* context =
 332       ImageTransportFactoryAndroid::GetInstance()->GetContext3D();
 333   if (context->isContextLost() || !context->makeContextCurrent())
 334     return;
 335   context->deleteTexture(texture_id);
 336   context->shallowFlushCHROMIUM();
 337 }
 338
 339 bool CompositorImpl::CopyTextureToBitmap(WebKit::WebGLId texture_id,
 340                                          gfx::JavaBitmap& bitmap) {
 341   return CopyTextureToBitmap(texture_id, gfx::Rect(bitmap.size()), bitmap);
 342 }
 343
 344 bool CompositorImpl::CopyTextureToBitmap(WebKit::WebGLId texture_id,
 345                                          const gfx::Rect& sub_rect,
 346                                          gfx::JavaBitmap& bitmap) {
 347   // The sub_rect should match the bitmap size.
 348   DCHECK(bitmap.size() == sub_rect.size());
 349   if (bitmap.size() != sub_rect.size() || texture_id == 0) return false;
 350
 351   GLHelper* helper = ImageTransportFactoryAndroid::GetInstance()->GetGLHelper();
 352   helper->ReadbackTextureSync(texture_id,
 353                               sub_rect,
 354                               static_cast<unsigned char*> (bitmap.pixels()));
 355   return true;
 356 }
 357
 358 static scoped_ptr<WebGraphicsContext3DCommandBufferImpl>
 359 CreateGpuProcessViewContext(
 360     const WebKit::WebGraphicsContext3D::Attributes attributes,
 361     int surface_id,
 362     base::WeakPtr<CompositorImpl> compositor_impl) {
 363   BrowserGpuChannelHostFactory* factory =
 364       BrowserGpuChannelHostFactory::instance();
 365   scoped_refptr<GpuChannelHost> gpu_channel_host(factory->EstablishGpuChannelSync(
 366       CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE));
 367   if (!gpu_channel_host)
 368     return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
 369
 370   GURL url("chrome://gpu/Compositor::createContext3D");
 371   static const size_t kBytesPerPixel = 4;
 372   gfx::DeviceDisplayInfo display_info;
 373   size_t full_screen_texture_size_in_bytes =
 374       display_info.GetDisplayHeight() *
 375       display_info.GetDisplayWidth() *
 376       kBytesPerPixel;
 377   WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits limits;
 378   limits.command_buffer_size = 64 * 1024;
 379   limits.start_transfer_buffer_size = 64 * 1024;
 380   limits.min_transfer_buffer_size = 64 * 1024;
 381   limits.max_transfer_buffer_size = std::min(
 382       3 * full_screen_texture_size_in_bytes, kDefaultMaxTransferBufferSize);
 383   limits.mapped_memory_reclaim_limit = 2 * 1024 * 1024;
 384   return make_scoped_ptr(
 385       new WebGraphicsContext3DCommandBufferImpl(surface_id,
 386                                                 url,
 387                                                 gpu_channel_host.get(),
 388                                                 compositor_impl,
 389                                                 attributes,
 390                                                 false,
 391                                                 limits,
 392                                                 true));
 393 }
 394
 395 scoped_ptr<cc::OutputSurface> CompositorImpl::CreateOutputSurface(
 396     bool fallback) {
 397   WebKit::WebGraphicsContext3D::Attributes attrs;
 398   attrs.shareResources = true;
 399   attrs.noAutomaticFlushes = true;
 400
 401   DCHECK(window_);
 402   DCHECK(surface_id_);
 403
 404   scoped_refptr<ContextProviderCommandBuffer> context_provider =
 405       ContextProviderCommandBuffer::Create(CreateGpuProcessViewContext(
 406           attrs, surface_id_, weak_factory_.GetWeakPtr()), "BrowserCompositor");
 407   if (!context_provider.get()) {
 408     LOG(ERROR) << "Failed to create 3D context for compositor.";
 409     return scoped_ptr<cc::OutputSurface>();
 410   }
 411
 412   return scoped_ptr<cc::OutputSurface>(
 413       new OutputSurfaceWithoutParent(context_provider));
 414 }
 415
 416 void CompositorImpl::OnLostResources() {
 417   client_->DidLoseResources();
 418 }
 419
 420 void CompositorImpl::DidCompleteSwapBuffers() {
 421   client_->OnSwapBuffersCompleted();
 422 }
 423
 424 void CompositorImpl::ScheduleComposite() {
 425   client_->ScheduleComposite();
 426 }
 427
 428 scoped_refptr<cc::ContextProvider> CompositorImpl::OffscreenContextProvider() {
 429   // There is no support for offscreen contexts, or compositor filters that
 430   // would require them in this compositor instance. If they are needed,
 431   // then implement a context provider that provides contexts from
 432   // ImageTransportSurfaceAndroid.
 433   return NULL;
 434 }
 435
 436 void CompositorImpl::OnViewContextSwapBuffersPosted() {
 437   TRACE_EVENT0("compositor", "CompositorImpl::OnViewContextSwapBuffersPosted");
 438   client_->OnSwapBuffersPosted();
 439 }
 440
 441 void CompositorImpl::OnViewContextSwapBuffersComplete() {
 442   TRACE_EVENT0("compositor",
 443                "CompositorImpl::OnViewContextSwapBuffersComplete");
 444   client_->OnSwapBuffersCompleted();
 445 }
 446
 447 void CompositorImpl::OnViewContextSwapBuffersAborted() {
 448   TRACE_EVENT0("compositor", "CompositorImpl::OnViewContextSwapBuffersAborted");
 449   client_->OnSwapBuffersCompleted();
 450 }
 451
 452 WebKit::WebGLId CompositorImpl::BuildBasicTexture() {
 453   WebKit::WebGraphicsContext3D* context =
 454             ImageTransportFactoryAndroid::GetInstance()->GetContext3D();
 455   if (context->isContextLost() || !context->makeContextCurrent())
 456     return 0;
 457   WebKit::WebGLId texture_id = context->createTexture();
 458   context->bindTexture(GL_TEXTURE_2D, texture_id);
 459   context->texParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 460   context->texParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 461   context->texParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 462   context->texParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 463   return texture_id;
 464 }
 465
 466 WebKit::WGC3Denum CompositorImpl::GetGLFormatForBitmap(
 467     gfx::JavaBitmap& bitmap) {
 468   switch (bitmap.format()) {
 469     case ANDROID_BITMAP_FORMAT_A_8:
 470       return GL_ALPHA;
 471       break;
 472     case ANDROID_BITMAP_FORMAT_RGBA_4444:
 473       return GL_RGBA;
 474       break;
 475     case ANDROID_BITMAP_FORMAT_RGBA_8888:
 476       return GL_RGBA;
 477       break;
 478     case ANDROID_BITMAP_FORMAT_RGB_565:
 479     default:
 480       return GL_RGB;
 481   }
 482 }
 483
 484 WebKit::WGC3Denum CompositorImpl::GetGLTypeForBitmap(gfx::JavaBitmap& bitmap) {
 485   switch (bitmap.format()) {
 486     case ANDROID_BITMAP_FORMAT_A_8:
 487       return GL_UNSIGNED_BYTE;
 488       break;
 489     case ANDROID_BITMAP_FORMAT_RGBA_4444:
 490       return GL_UNSIGNED_SHORT_4_4_4_4;
 491       break;
 492     case ANDROID_BITMAP_FORMAT_RGBA_8888:
 493       return GL_UNSIGNED_BYTE;
 494       break;
 495     case ANDROID_BITMAP_FORMAT_RGB_565:
 496     default:
 497       return GL_UNSIGNED_SHORT_5_6_5;
 498   }
 499 }
 500
 501 } // namespace content