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