cc/layers/texture_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_TEXTURE_LAYER_IMPL_H_
   6 #define CC_LAYERS_TEXTURE_LAYER_IMPL_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/layers/layer_impl.h"
  13
  14 namespace cc {
  15 class SingleReleaseCallback;
  16 class ScopedResource;
  17
  18 class CC_EXPORT TextureLayerImpl : public LayerImpl {
  19  public:
  20   static scoped_ptr<TextureLayerImpl> Create(LayerTreeImpl* tree_impl,
  21                                              int id,
  22                                              bool uses_mailbox) {
  23     return make_scoped_ptr(new TextureLayerImpl(tree_impl, id, uses_mailbox));
  24   }
  25   virtual ~TextureLayerImpl();
  26
  27   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* layer_tree_impl)
  28       OVERRIDE;
  29   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
  30
  31   virtual bool WillDraw(DrawMode draw_mode,
  32                         ResourceProvider* resource_provider) OVERRIDE;
  33   virtual void AppendQuads(QuadSink* quad_sink,
  34                            AppendQuadsData* append_quads_data) OVERRIDE;
  35   virtual void DidDraw(ResourceProvider* resource_provider) OVERRIDE;
  36   virtual Region VisibleContentOpaqueRegion() const OVERRIDE;
  37   virtual void DidLoseOutputSurface() OVERRIDE;
  38
  39   unsigned texture_id() const { return texture_id_; }
  40   void set_texture_id(unsigned id) { texture_id_ = id; }
  41   void set_premultiplied_alpha(bool premultiplied_alpha) {
  42     premultiplied_alpha_ = premultiplied_alpha;
  43   }
  44   void set_blend_background_color(bool blend) {
  45     blend_background_color_ = blend;
  46   }
  47   void set_flipped(bool flipped) { flipped_ = flipped; }
  48   void set_uv_top_left(gfx::PointF top_left) { uv_top_left_ = top_left; }
  49   void set_uv_bottom_right(gfx::PointF bottom_right) {
  50     uv_bottom_right_ = bottom_right;
  51   }
  52
  53   // 1--2
  54   // |  |
  55   // 0--3
  56   void set_vertex_opacity(const float vertex_opacity[4]) {
  57     vertex_opacity_[0] = vertex_opacity[0];
  58     vertex_opacity_[1] = vertex_opacity[1];
  59     vertex_opacity_[2] = vertex_opacity[2];
  60     vertex_opacity_[3] = vertex_opacity[3];
  61   }
  62
  63   void SetTextureMailbox(const TextureMailbox& mailbox,
  64                          scoped_ptr<SingleReleaseCallback> release_callback);
  65
  66  private:
  67   TextureLayerImpl(LayerTreeImpl* tree_impl, int id, bool uses_mailbox);
  68
  69   virtual const char* LayerTypeAsString() const OVERRIDE;
  70   void FreeTextureMailbox();
  71
  72   unsigned texture_id_;
  73   ResourceProvider::ResourceId external_texture_resource_;
  74   bool premultiplied_alpha_;
  75   bool blend_background_color_;
  76   bool flipped_;
  77   gfx::PointF uv_top_left_;
  78   gfx::PointF uv_bottom_right_;
  79   float vertex_opacity_[4];
  80   // This is a resource that's a GL copy of a software texture mailbox.
  81   scoped_ptr<ScopedResource> texture_copy_;
  82
  83   TextureMailbox texture_mailbox_;
  84   scoped_ptr<SingleReleaseCallback> release_callback_;
  85   bool uses_mailbox_;
  86   bool own_mailbox_;
  87   bool valid_texture_copy_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(TextureLayerImpl);
  90 };
  91
  92 }  // namespace cc
  93
  94 #endif  // CC_LAYERS_TEXTURE_LAYER_IMPL_H_