82eec95283d618f4a78d409e52b3b2d23bee16c1
[platform/framework/web/crosswalk.git] / src / 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, int id) {
21     return make_scoped_ptr(new TextureLayerImpl(tree_impl, id));
22   }
23   virtual ~TextureLayerImpl();
24
25   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* layer_tree_impl)
26       OVERRIDE;
27   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
28
29   virtual bool WillDraw(DrawMode draw_mode,
30                         ResourceProvider* resource_provider) OVERRIDE;
31   virtual void AppendQuads(QuadSink* quad_sink,
32                            AppendQuadsData* append_quads_data) OVERRIDE;
33   virtual Region VisibleContentOpaqueRegion() const OVERRIDE;
34   virtual void ReleaseResources() OVERRIDE;
35
36   // These setter methods don't cause any implicit damage, so the texture client
37   // must explicitly invalidate if they intend to cause a visible change in the
38   // layer's output.
39   void SetTextureId(unsigned id);
40   void SetPremultipliedAlpha(bool premultiplied_alpha);
41   void SetBlendBackgroundColor(bool blend);
42   void SetFlipped(bool flipped);
43   void SetUVTopLeft(const gfx::PointF top_left);
44   void SetUVBottomRight(const gfx::PointF bottom_right);
45
46   // 1--2
47   // |  |
48   // 0--3
49   void SetVertexOpacity(const float vertex_opacity[4]);
50
51   void SetTextureMailbox(const TextureMailbox& mailbox,
52                          scoped_ptr<SingleReleaseCallback> release_callback);
53
54  private:
55   TextureLayerImpl(LayerTreeImpl* tree_impl, int id);
56
57   virtual const char* LayerTypeAsString() const OVERRIDE;
58   void FreeTextureMailbox();
59
60   ResourceProvider::ResourceId external_texture_resource_;
61   bool premultiplied_alpha_;
62   bool blend_background_color_;
63   bool flipped_;
64   gfx::PointF uv_top_left_;
65   gfx::PointF uv_bottom_right_;
66   float vertex_opacity_[4];
67   // This is a resource that's a GL copy of a software texture mailbox.
68   scoped_ptr<ScopedResource> texture_copy_;
69
70   TextureMailbox texture_mailbox_;
71   scoped_ptr<SingleReleaseCallback> release_callback_;
72   bool own_mailbox_;
73   bool valid_texture_copy_;
74
75   DISALLOW_COPY_AND_ASSIGN(TextureLayerImpl);
76 };
77
78 }  // namespace cc
79
80 #endif  // CC_LAYERS_TEXTURE_LAYER_IMPL_H_