src/cc/layers/delegated_renderer_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_DELEGATED_RENDERER_LAYER_IMPL_H_
   6 #define CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_
   7
   8 #include "base/containers/hash_tables.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "cc/base/cc_export.h"
  11 #include "cc/base/scoped_ptr_vector.h"
  12 #include "cc/layers/layer_impl.h"
  13
  14 namespace cc {
  15 class DelegatedFrameData;
  16 class RenderPassSink;
  17
  18 class CC_EXPORT DelegatedRendererLayerImpl : public LayerImpl {
  19  public:
  20   static scoped_ptr<DelegatedRendererLayerImpl> Create(
  21       LayerTreeImpl* tree_impl, int id) {
  22     return make_scoped_ptr(new DelegatedRendererLayerImpl(tree_impl, id));
  23   }
  24   virtual ~DelegatedRendererLayerImpl();
  25
  26   // LayerImpl overrides.
  27   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
  28       OVERRIDE;
  29   virtual bool HasDelegatedContent() const OVERRIDE;
  30   virtual bool HasContributingDelegatedRenderPasses() const OVERRIDE;
  31   virtual RenderPass::Id FirstContributingRenderPassId() const OVERRIDE;
  32   virtual RenderPass::Id NextContributingRenderPassId(
  33       RenderPass::Id previous) const OVERRIDE;
  34   virtual void ReleaseResources() OVERRIDE;
  35   virtual bool WillDraw(DrawMode draw_mode,
  36                         ResourceProvider* resource_provider) OVERRIDE;
  37   virtual void AppendQuads(QuadSink* quad_sink,
  38                            AppendQuadsData* append_quads_data) OVERRIDE;
  39   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
  40
  41   void AppendContributingRenderPasses(RenderPassSink* render_pass_sink);
  42
  43   // Creates an ID with the resource provider for the child renderer
  44   // that will be sending quads to the layer. Registers the callback to
  45   // inform when resources are no longer in use.
  46   void CreateChildIdIfNeeded(const ReturnCallback& return_callback);
  47
  48   void SetFrameData(const DelegatedFrameData* frame_data,
  49                     const gfx::RectF& damage_in_frame);
  50
  51  protected:
  52   DelegatedRendererLayerImpl(LayerTreeImpl* tree_impl, int id);
  53
  54   int ChildIdForTesting() const { return child_id_; }
  55   const ScopedPtrVector<RenderPass>& RenderPassesInDrawOrderForTesting() const {
  56     return render_passes_in_draw_order_;
  57   }
  58   const ResourceProvider::ResourceIdArray& ResourcesForTesting() const {
  59     return resources_;
  60   }
  61
  62  private:
  63   void ClearChildId();
  64
  65   void AppendRainbowDebugBorder(QuadSink* quad_sink,
  66                                 AppendQuadsData* append_quads_data);
  67
  68   void SetRenderPasses(
  69       ScopedPtrVector<RenderPass>* render_passes_in_draw_order);
  70   void ClearRenderPasses();
  71
  72   // Returns |true| if the delegated_render_pass_id is part of the current
  73   // frame and can be converted.
  74   bool ConvertDelegatedRenderPassId(
  75       RenderPass::Id delegated_render_pass_id,
  76       RenderPass::Id* output_render_pass_id) const;
  77
  78   void AppendRenderPassQuads(
  79       QuadSink* quad_sink,
  80       AppendQuadsData* append_quads_data,
  81       const RenderPass* delegated_render_pass,
  82       const gfx::Size& frame_size) const;
  83
  84   // LayerImpl overrides.
  85   virtual const char* LayerTypeAsString() const OVERRIDE;
  86
  87   bool have_render_passes_to_push_;
  88   float inverse_device_scale_factor_;
  89   ScopedPtrVector<RenderPass> render_passes_in_draw_order_;
  90   base::hash_map<RenderPass::Id, int> render_passes_index_by_id_;
  91   ResourceProvider::ResourceIdArray resources_;
  92
  93   int child_id_;
  94   bool own_child_id_;
  95
  96   DISALLOW_COPY_AND_ASSIGN(DelegatedRendererLayerImpl);
  97 };
  98
  99 }  // namespace cc
 100
 101 #endif  // CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_