Revert "Delete CC."

cc/surfaces/display.cc

+// 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 "cc/surfaces/display.h"
+
+#include "base/message_loop/message_loop.h"
+#include "base/trace_event/trace_event.h"
+#include "cc/output/compositor_frame.h"
+#include "cc/output/compositor_frame_ack.h"
+#include "cc/output/direct_renderer.h"
+#include "cc/output/gl_renderer.h"
+#include "cc/output/renderer_settings.h"
+#include "cc/output/software_renderer.h"
+#include "cc/resources/texture_mailbox_deleter.h"
+#include "cc/surfaces/display_client.h"
+#include "cc/surfaces/surface.h"
+#include "cc/surfaces/surface_aggregator.h"
+#include "cc/surfaces/surface_manager.h"
+
+namespace cc {
+
+Display::Display(DisplayClient* client,
+                 SurfaceManager* manager,
+                 SharedBitmapManager* bitmap_manager,
+                 gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
+                 const RendererSettings& settings)
+    : client_(client),
+      manager_(manager),
+      bitmap_manager_(bitmap_manager),
+      gpu_memory_buffer_manager_(gpu_memory_buffer_manager),
+      settings_(settings),
+      device_scale_factor_(1.f),
+      texture_mailbox_deleter_(
+          new TextureMailboxDeleter(base::MessageLoopProxy::current())) {
+  manager_->AddObserver(this);
+}
+
+Display::~Display() {
+  manager_->RemoveObserver(this);
+  if (aggregator_) {
+    for (const auto& id_entry : aggregator_->previous_contained_surfaces()) {
+      Surface* surface = manager_->GetSurfaceForId(id_entry.first);
+      if (surface)
+        surface->RunDrawCallbacks(SurfaceDrawStatus::DRAW_SKIPPED);
+    }
+  }
+}
+
+bool Display::Initialize(scoped_ptr<OutputSurface> output_surface) {
+  output_surface_ = output_surface.Pass();
+  return output_surface_->BindToClient(this);
+}
+
+void Display::SetSurfaceId(SurfaceId id, float device_scale_factor) {
+  current_surface_id_ = id;
+  device_scale_factor_ = device_scale_factor;
+  client_->DisplayDamaged();
+}
+
+void Display::Resize(const gfx::Size& size) {
+  if (size == current_surface_size_)
+    return;
+  // Need to ensure all pending swaps have executed before the window is
+  // resized, or D3D11 will scale the swap output.
+  if (renderer_ && settings_.finish_rendering_on_resize)
+    renderer_->Finish();
+  current_surface_size_ = size;
+  client_->DisplayDamaged();
+}
+
+void Display::InitializeRenderer() {
+  if (resource_provider_)
+    return;
+
+  scoped_ptr<ResourceProvider> resource_provider = ResourceProvider::Create(
+      output_surface_.get(), bitmap_manager_, gpu_memory_buffer_manager_,
+      nullptr, settings_.highp_threshold_min, settings_.use_rgba_4444_textures,
+      settings_.texture_id_allocation_chunk_size);
+  if (!resource_provider)
+    return;
+
+  if (output_surface_->context_provider()) {
+    scoped_ptr<GLRenderer> renderer = GLRenderer::Create(
+        this, &settings_, output_surface_.get(), resource_provider.get(),
+        texture_mailbox_deleter_.get(), settings_.highp_threshold_min);
+    if (!renderer)
+      return;
+    renderer_ = renderer.Pass();
+  } else {
+    scoped_ptr<SoftwareRenderer> renderer = SoftwareRenderer::Create(
+        this, &settings_, output_surface_.get(), resource_provider.get());
+    if (!renderer)
+      return;
+    renderer_ = renderer.Pass();
+  }
+
+  resource_provider_ = resource_provider.Pass();
+  aggregator_.reset(new SurfaceAggregator(manager_, resource_provider_.get()));
+}
+
+void Display::DidLoseOutputSurface() {
+  client_->OutputSurfaceLost();
+}
+
+bool Display::Draw() {
+  if (current_surface_id_.is_null())
+    return false;
+
+  InitializeRenderer();
+  if (!output_surface_)
+    return false;
+
+  // TODO(skyostil): We should hold a BlockingTaskRunner::CapturePostTasks
+  // while Aggregate is called to immediately run release callbacks afterward.
+  scoped_ptr<CompositorFrame> frame =
+      aggregator_->Aggregate(current_surface_id_);
+  if (!frame)
+    return false;
+
+  TRACE_EVENT0("cc", "Display::Draw");
+
+  // Run callbacks early to allow pipelining.
+  for (const auto& id_entry : aggregator_->previous_contained_surfaces()) {
+    Surface* surface = manager_->GetSurfaceForId(id_entry.first);
+    if (surface)
+      surface->RunDrawCallbacks(SurfaceDrawStatus::DRAWN);
+  }
+  DelegatedFrameData* frame_data = frame->delegated_frame_data.get();
+
+  frame->metadata.latency_info.insert(frame->metadata.latency_info.end(),
+                                      stored_latency_info_.begin(),
+                                      stored_latency_info_.end());
+  stored_latency_info_.clear();
+  bool have_copy_requests = false;
+  for (const auto* pass : frame_data->render_pass_list) {
+    have_copy_requests |= !pass->copy_requests.empty();
+  }
+
+  gfx::Size surface_size;
+  bool have_damage = false;
+  if (!frame_data->render_pass_list.empty()) {
+    surface_size = frame_data->render_pass_list.back()->output_rect.size();
+    have_damage =
+        !frame_data->render_pass_list.back()->damage_rect.size().IsEmpty();
+  }
+  bool avoid_swap = surface_size != current_surface_size_;
+  bool should_draw = !frame->metadata.latency_info.empty() ||
+                     have_copy_requests || (have_damage && !avoid_swap);
+
+  if (should_draw) {
+    gfx::Rect device_viewport_rect = gfx::Rect(current_surface_size_);
+    gfx::Rect device_clip_rect = device_viewport_rect;
+    bool disable_picture_quad_image_filtering = false;
+
+    renderer_->DecideRenderPassAllocationsForFrame(
+        frame_data->render_pass_list);
+    renderer_->DrawFrame(&frame_data->render_pass_list, device_scale_factor_,
+                         device_viewport_rect, device_clip_rect,
+                         disable_picture_quad_image_filtering);
+  }
+
+  if (should_draw && !avoid_swap) {
+    renderer_->SwapBuffers(frame->metadata);
+  } else {
+    stored_latency_info_.insert(stored_latency_info_.end(),
+                                frame->metadata.latency_info.begin(),
+                                frame->metadata.latency_info.end());
+    DidSwapBuffers();
+    DidSwapBuffersComplete();
+  }
+
+  return true;
+}
+
+void Display::DidSwapBuffers() {
+  client_->DidSwapBuffers();
+}
+
+void Display::DidSwapBuffersComplete() {
+  client_->DidSwapBuffersComplete();
+}
+
+void Display::CommitVSyncParameters(base::TimeTicks timebase,
+                                    base::TimeDelta interval) {
+  client_->CommitVSyncParameters(timebase, interval);
+}
+
+void Display::OnSurfaceDamaged(SurfaceId surface_id, bool* changed) {
+  if (aggregator_ &&
+      aggregator_->previous_contained_surfaces().count(surface_id)) {
+    Surface* surface = manager_->GetSurfaceForId(surface_id);
+    if (surface) {
+      const CompositorFrame* current_frame = surface->GetEligibleFrame();
+      if (!current_frame || !current_frame->delegated_frame_data ||
+          !current_frame->delegated_frame_data->resource_list.size())
+        aggregator_->ReleaseResources(surface_id);
+    }
+    client_->DisplayDamaged();
+    *changed = true;
+  } else if (surface_id == current_surface_id_) {
+    client_->DisplayDamaged();
+    *changed = true;
+  }
+}
+
+SurfaceId Display::CurrentSurfaceId() {
+  return current_surface_id_;
+}
+
+int Display::GetMaxFramesPending() {
+  int max_frames_pending =
+      output_surface_ ? output_surface_->capabilities().max_frames_pending : 0;
+  if (max_frames_pending <= 0)
+    max_frames_pending = OutputSurface::DEFAULT_MAX_FRAMES_PENDING;
+  return max_frames_pending;
+}
+
+}  // namespace cc