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Side by Side Diff: ui/gfx/compositor/compositor.h

Issue 7659015: Revert 96982 - Add gl.dll, compositor.dll, and surface.dll. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 9 years, 4 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_GFX_COMPOSITOR_COMPOSITOR_H_ 5 #ifndef UI_GFX_COMPOSITOR_COMPOSITOR_H_
6 #define UI_GFX_COMPOSITOR_COMPOSITOR_H_ 6 #define UI_GFX_COMPOSITOR_COMPOSITOR_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/memory/ref_counted.h" 9 #include "base/memory/ref_counted.h"
10 #include "ui/gfx/compositor/compositor_export.h"
11 #include "ui/gfx/transform.h" 10 #include "ui/gfx/transform.h"
12 #include "ui/gfx/native_widget_types.h" 11 #include "ui/gfx/native_widget_types.h"
13 12
14 class SkCanvas; 13 class SkCanvas;
15 namespace gfx { 14 namespace gfx {
16 class Point; 15 class Point;
17 class Rect; 16 class Rect;
18 class Size; 17 class Size;
19 } 18 }
20 19
(...skipping 13 matching lines...) Expand all
34 }; 33 };
35 34
36 // Textures are created by a Compositor for managing an accelerated view. 35 // Textures are created by a Compositor for managing an accelerated view.
37 // Any time a View with a texture needs to redraw itself it invokes SetCanvas(). 36 // Any time a View with a texture needs to redraw itself it invokes SetCanvas().
38 // When the view is ready to be drawn Draw() is invoked. 37 // When the view is ready to be drawn Draw() is invoked.
39 // 38 //
40 // Texture is really a proxy to the gpu. Texture does not itself keep a copy of 39 // Texture is really a proxy to the gpu. Texture does not itself keep a copy of
41 // the bitmap. 40 // the bitmap.
42 // 41 //
43 // Views own the Texture. 42 // Views own the Texture.
44 class COMPOSITOR_EXPORT Texture : public base::RefCounted<Texture> { 43 class Texture : public base::RefCounted<Texture> {
45 public: 44 public:
46 // Sets the canvas of this texture. The origin is at |origin|. 45 // Sets the canvas of this texture. The origin is at |origin|.
47 // |overall_size| gives the total size of texture. 46 // |overall_size| gives the total size of texture.
48 virtual void SetCanvas(const SkCanvas& canvas, 47 virtual void SetCanvas(const SkCanvas& canvas,
49 const gfx::Point& origin, 48 const gfx::Point& origin,
50 const gfx::Size& overall_size) = 0; 49 const gfx::Size& overall_size) = 0;
51 50
52 // Draws the texture. 51 // Draws the texture.
53 virtual void Draw(const ui::TextureDrawParams& params) = 0; 52 virtual void Draw(const ui::TextureDrawParams& params) = 0;
54 53
55 // Draws the portion of the texture contained within clip_bounds 54 // Draws the portion of the texture contained within clip_bounds
56 virtual void Draw(const ui::TextureDrawParams& params, 55 virtual void Draw(const ui::TextureDrawParams& params,
57 const gfx::Rect& clip_bounds_in_texture) = 0; 56 const gfx::Rect& clip_bounds_in_texture) = 0;
58 57
59 protected: 58 protected:
60 virtual ~Texture() {} 59 virtual ~Texture() {}
61 60
62 private: 61 private:
63 friend class base::RefCounted<Texture>; 62 friend class base::RefCounted<Texture>;
64 }; 63 };
65 64
66 // Compositor object to take care of GPU painting. 65 // Compositor object to take care of GPU painting.
67 // A Browser compositor object is responsible for generating the final 66 // A Browser compositor object is responsible for generating the final
68 // displayable form of pixels comprising a single widget's contents. It draws an 67 // displayable form of pixels comprising a single widget's contents. It draws an
69 // appropriately transformed texture for each transformed view in the widget's 68 // appropriately transformed texture for each transformed view in the widget's
70 // view hierarchy. 69 // view hierarchy.
71 class COMPOSITOR_EXPORT Compositor : public base::RefCounted<Compositor> { 70 class Compositor : public base::RefCounted<Compositor> {
72 public: 71 public:
73 // Create a compositor from the provided handle. 72 // Create a compositor from the provided handle.
74 static Compositor* Create(gfx::AcceleratedWidget widget, 73 static Compositor* Create(gfx::AcceleratedWidget widget,
75 const gfx::Size& size); 74 const gfx::Size& size);
76 75
77 // Creates a new texture. The caller owns the returned object. 76 // Creates a new texture. The caller owns the returned object.
78 virtual Texture* CreateTexture() = 0; 77 virtual Texture* CreateTexture() = 0;
79 78
80 // Notifies the compositor that compositing is about to start. 79 // Notifies the compositor that compositing is about to start.
81 virtual void NotifyStart() = 0; 80 virtual void NotifyStart() = 0;
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96 protected: 95 protected:
97 virtual ~Compositor() {} 96 virtual ~Compositor() {}
98 97
99 private: 98 private:
100 friend class base::RefCounted<Compositor>; 99 friend class base::RefCounted<Compositor>;
101 }; 100 };
102 101
103 } // namespace ui 102 } // namespace ui
104 103
105 #endif // UI_GFX_COMPOSITOR_COMPOSITOR_H_ 104 #endif // UI_GFX_COMPOSITOR_COMPOSITOR_H_
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