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 #include "ui/events/latency_info.h"
  19
  20 namespace gpu {
  21 class GpuMemoryBufferManager;
  22 }
  23
  24 namespace gfx {
  25 class Size;
  26 }
  27
  28 namespace cc {
  29
  30 class BlockingTaskRunner;
  31 class DirectRenderer;
  32 class DisplayClient;
  33 class OutputSurface;
  34 class RendererSettings;
  35 class ResourceProvider;
  36 class SharedBitmapManager;
  37 class Surface;
  38 class SurfaceAggregator;
  39 class SurfaceIdAllocator;
  40 class SurfaceFactory;
  41 class TextureMailboxDeleter;
  42
  43 // A Display produces a surface that can be used to draw to a physical display
  44 // (OutputSurface). The client is responsible for creating and sizing the
  45 // surface IDs used to draw into the display and deciding when to draw.
  46 class CC_SURFACES_EXPORT Display : public OutputSurfaceClient,
  47                                    public RendererClient,
  48                                    public SurfaceDamageObserver {
  49  public:
  50   Display(DisplayClient* client,
  51           SurfaceManager* manager,
  52           SharedBitmapManager* bitmap_manager,
  53           gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
  54           const RendererSettings& settings);
  55   ~Display() override;
  56
  57   bool Initialize(scoped_ptr<OutputSurface> output_surface);
  58
  59   // device_scale_factor is used to communicate to the external window system
  60   // what scale this was rendered at.
  61   void SetSurfaceId(SurfaceId id, float device_scale_factor);
  62   void Resize(const gfx::Size& new_size);
  63   bool Draw();
  64
  65   SurfaceId CurrentSurfaceId();
  66   int GetMaxFramesPending();
  67
  68   // OutputSurfaceClient implementation.
  69   void CommitVSyncParameters(base::TimeTicks timebase,
  70                              base::TimeDelta interval) override;
  71   void SetNeedsRedrawRect(const gfx::Rect& damage_rect) override;
  72   void DidSwapBuffers() override;
  73   void DidSwapBuffersComplete() override;
  74   void ReclaimResources(const CompositorFrameAck* ack) override;
  75   void DidLoseOutputSurface() override;
  76   void SetExternalDrawConstraints(
  77       const gfx::Transform& transform,
  78       const gfx::Rect& viewport,
  79       const gfx::Rect& clip,
  80       const gfx::Rect& viewport_rect_for_tile_priority,
  81       const gfx::Transform& transform_for_tile_priority,
  82       bool resourceless_software_draw) override;
  83   void SetMemoryPolicy(const ManagedMemoryPolicy& policy) override;
  84   void SetTreeActivationCallback(const base::Closure& callback) override;
  85   void OnDraw() override;
  86
  87   // RendererClient implementation.
  88   void SetFullRootLayerDamage() override;
  89
  90   // SurfaceDamageObserver implementation.
  91   void OnSurfaceDamaged(SurfaceId surface, bool* changed) override;
  92
  93  private:
  94   void InitializeRenderer();
  95
  96   DisplayClient* client_;
  97   SurfaceManager* manager_;
  98   SharedBitmapManager* bitmap_manager_;
  99   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
 100   RendererSettings settings_;
 101   SurfaceId current_surface_id_;
 102   gfx::Size current_surface_size_;
 103   float device_scale_factor_;
 104   scoped_ptr<OutputSurface> output_surface_;
 105   scoped_ptr<ResourceProvider> resource_provider_;
 106   scoped_ptr<SurfaceAggregator> aggregator_;
 107   scoped_ptr<DirectRenderer> renderer_;
 108   scoped_ptr<BlockingTaskRunner> blocking_main_thread_task_runner_;
 109   scoped_ptr<TextureMailboxDeleter> texture_mailbox_deleter_;
 110   std::vector<ui::LatencyInfo> stored_latency_info_;
 111
 112   DISALLOW_COPY_AND_ASSIGN(Display);
 113 };
 114
 115 }  // namespace cc
 116
 117 #endif  // CC_SURFACES_DISPLAY_H_