cc/surfaces/surface_factory.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_SURFACE_FACTORY_H_
   6 #define CC_SURFACES_SURFACE_FACTORY_H_
   7
   8 #include "base/containers/scoped_ptr_hash_map.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "cc/surfaces/surface_id.h"
  12 #include "cc/surfaces/surface_resource_holder.h"
  13 #include "cc/surfaces/surfaces_export.h"
  14
  15 namespace gfx {
  16 class Size;
  17 }
  18
  19 namespace cc {
  20 class CompositorFrame;
  21 class Surface;
  22 class SurfaceFactoryClient;
  23 class SurfaceManager;
  24
  25 // A SurfaceFactory is used to create surfaces that may share resources and
  26 // receive returned resources for frames submitted to those surfaces. Resources
  27 // submitted to frames created by a particular factory will be returned to that
  28 // factory's client when they are no longer being used. This is the only class
  29 // most users of surfaces will need to directly interact with.
  30 class CC_SURFACES_EXPORT SurfaceFactory
  31     : public base::SupportsWeakPtr<SurfaceFactory> {
  32  public:
  33   SurfaceFactory(SurfaceManager* manager, SurfaceFactoryClient* client);
  34   ~SurfaceFactory();
  35
  36   void Create(SurfaceId surface_id, const gfx::Size& size);
  37   void Destroy(SurfaceId surface_id);
  38   // A frame can only be submitted to a surface created by this factory,
  39   // although the frame may reference surfaces created by other factories.
  40   void SubmitFrame(SurfaceId surface_id, scoped_ptr<CompositorFrame> frame);
  41
  42   SurfaceFactoryClient* client() { return client_; }
  43
  44   void ReceiveFromChild(const TransferableResourceArray& resources);
  45   void RefResources(const TransferableResourceArray& resources);
  46   void UnrefResources(const ReturnedResourceArray& resources);
  47
  48  private:
  49   SurfaceManager* manager_;
  50   SurfaceFactoryClient* client_;
  51   typedef base::ScopedPtrHashMap<SurfaceId, Surface> OwningSurfaceMap;
  52   base::ScopedPtrHashMap<SurfaceId, Surface> surface_map_;
  53
  54   SurfaceResourceHolder holder_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(SurfaceFactory);
  57 };
  58
  59 }  // namespace cc
  60
  61 #endif  // CC_SURFACES_SURFACE_FACTORY_H_