cc/layers/video_layer_impl.h

   1 // Copyright 2012 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_LAYERS_VIDEO_LAYER_IMPL_H_
   6 #define CC_LAYERS_VIDEO_LAYER_IMPL_H_
   7
   8 #include <vector>
   9
  10 #include "cc/base/cc_export.h"
  11 #include "cc/layers/layer_impl.h"
  12 #include "cc/resources/release_callback_impl.h"
  13 #include "cc/resources/video_resource_updater.h"
  14 #include "media/base/video_rotation.h"
  15
  16 namespace media {
  17 class VideoFrame;
  18 }
  19
  20 namespace cc {
  21 class VideoFrameProvider;
  22 class VideoFrameProviderClientImpl;
  23
  24 class CC_EXPORT VideoLayerImpl : public LayerImpl {
  25  public:
  26   // Must be called on the impl thread while the main thread is blocked. This is
  27   // so that |provider| stays alive while this is being created.
  28   static scoped_ptr<VideoLayerImpl> Create(LayerTreeImpl* tree_impl,
  29                                            int id,
  30                                            VideoFrameProvider* provider,
  31                                            media::VideoRotation video_rotation);
  32   ~VideoLayerImpl() override;
  33
  34   // LayerImpl implementation.
  35   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
  36   bool WillDraw(DrawMode draw_mode,
  37                 ResourceProvider* resource_provider) override;
  38   void AppendQuads(RenderPass* render_pass,
  39                    AppendQuadsData* append_quads_data) override;
  40   void DidDraw(ResourceProvider* resource_provider) override;
  41   SimpleEnclosedRegion VisibleOpaqueRegion() const override;
  42   void DidBecomeActive() override;
  43   void ReleaseResources() override;
  44
  45   void SetNeedsRedraw();
  46   media::VideoRotation video_rotation() const { return video_rotation_; }
  47
  48  private:
  49   VideoLayerImpl(
  50       LayerTreeImpl* tree_impl,
  51       int id,
  52       const scoped_refptr<VideoFrameProviderClientImpl>& provider_client_impl,
  53       media::VideoRotation video_rotation);
  54
  55   const char* LayerTypeAsString() const override;
  56
  57   scoped_refptr<VideoFrameProviderClientImpl> provider_client_impl_;
  58
  59   scoped_refptr<media::VideoFrame> frame_;
  60
  61   media::VideoRotation video_rotation_;
  62
  63   scoped_ptr<VideoResourceUpdater> updater_;
  64   VideoFrameExternalResources::ResourceType frame_resource_type_;
  65   struct FrameResource {
  66     FrameResource(ResourceId id, gfx::Size size_in_pixels, bool allow_overlay)
  67         : id(id),
  68           size_in_pixels(size_in_pixels),
  69           allow_overlay(allow_overlay) {}
  70     ResourceId id;
  71     gfx::Size size_in_pixels;
  72     bool allow_overlay;
  73   };
  74   std::vector<FrameResource> frame_resources_;
  75
  76   // TODO(danakj): Remove these, hide software path inside ResourceProvider and
  77   // ExternalResource (aka TextureMailbox) classes.
  78   std::vector<unsigned> software_resources_;
  79   // Called once for each software resource.
  80   ReleaseCallbackImpl software_release_callback_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(VideoLayerImpl);
  83 };
  84
  85 }  // namespace cc
  86
  87 #endif  // CC_LAYERS_VIDEO_LAYER_IMPL_H_