cc/surfaces/display.h

   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 #ifndef CC_SURFACES_DISPLAY_H_
   6 #define CC_SURFACES_DISPLAY_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "cc/output/output_surface_client.h"
  12 #include "cc/output/renderer.h"
  13 #include "cc/resources/returned_resource.h"
  14 #include "cc/surfaces/surface_aggregator.h"
  15 #include "cc/surfaces/surface_id.h"
  16 #include "cc/surfaces/surface_manager.h"
  17 #include "cc/surfaces/surfaces_export.h"
  18
  19 namespace gfx {
  20 class Size;
  21 }
  22
  23 namespace cc {
  24
  25 class BlockingTaskRunner;
  26 class DirectRenderer;
  27 class DisplayClient;
  28 class OutputSurface;
  29 class RendererSettings;
  30 class ResourceProvider;
  31 class SharedBitmapManager;
  32 class Surface;
  33 class SurfaceAggregator;
  34 class SurfaceIdAllocator;
  35 class SurfaceFactory;
  36 class TextureMailboxDeleter;
  37
  38 // A Display produces a surface that can be used to draw to a physical display
  39 // (OutputSurface). The client is responsible for creating and sizing the
  40 // surface IDs used to draw into the display and deciding when to draw.
  41 class CC_SURFACES_EXPORT Display : public OutputSurfaceClient,
  42                                    public RendererClient,
  43                                    public SurfaceDamageObserver {
  44  public:
  45   Display(DisplayClient* client,
  46           SurfaceManager* manager,
  47           SharedBitmapManager* bitmap_manager,
  48           gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
  49           const RendererSettings& settings);
  50   ~Display() override;
  51
  52   bool Initialize(scoped_ptr<OutputSurface> output_surface);
  53
  54   // device_scale_factor is used to communicate to the external window system
  55   // what scale this was rendered at.
  56   void SetSurfaceId(SurfaceId id, float device_scale_factor);
  57   void Resize(const gfx::Size& new_size);
  58   bool Draw();
  59
  60   SurfaceId CurrentSurfaceId();
  61   int GetMaxFramesPending();
  62
  63   // OutputSurfaceClient implementation.
  64   void DeferredInitialize() override {}
  65   void ReleaseGL() override {}
  66   void CommitVSyncParameters(base::TimeTicks timebase,
  67                              base::TimeDelta interval) override;
  68   void SetNeedsRedrawRect(const gfx::Rect& damage_rect) override {}
  69   void DidSwapBuffers() override;
  70   void DidSwapBuffersComplete() override;
  71   void ReclaimResources(const CompositorFrameAck* ack) override {}
  72   void DidLoseOutputSurface() override;
  73   void SetExternalDrawConstraints(
  74       const gfx::Transform& transform,
  75       const gfx::Rect& viewport,
  76       const gfx::Rect& clip,
  77       const gfx::Rect& viewport_rect_for_tile_priority,
  78       const gfx::Transform& transform_for_tile_priority,
  79       bool resourceless_software_draw) override {}
  80   void SetMemoryPolicy(const ManagedMemoryPolicy& policy) override;
  81   void SetTreeActivationCallback(const base::Closure& callback) override {}
  82
  83   // RendererClient implementation.
  84   void SetFullRootLayerDamage() override {}
  85
  86   // SurfaceDamageObserver implementation.
  87   void OnSurfaceDamaged(SurfaceId surface, bool* changed) override;
  88
  89  private:
  90   void InitializeRenderer();
  91
  92   DisplayClient* client_;
  93   SurfaceManager* manager_;
  94   SharedBitmapManager* bitmap_manager_;
  95   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
  96   RendererSettings settings_;
  97   SurfaceId current_surface_id_;
  98   gfx::Size current_surface_size_;
  99   float device_scale_factor_;
 100   scoped_ptr<OutputSurface> output_surface_;
 101   scoped_ptr<ResourceProvider> resource_provider_;
 102   scoped_ptr<SurfaceAggregator> aggregator_;
 103   scoped_ptr<DirectRenderer> renderer_;
 104   scoped_ptr<BlockingTaskRunner> blocking_main_thread_task_runner_;
 105   scoped_ptr<TextureMailboxDeleter> texture_mailbox_deleter_;
 106   std::vector<ui::LatencyInfo> stored_latency_info_;
 107
 108   DISALLOW_COPY_AND_ASSIGN(Display);
 109 };
 110
 111 }  // namespace cc
 112
 113 #endif  // CC_SURFACES_DISPLAY_H_