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| 1 // Copyright (c) 2009 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 SKIA_EXT_BITMAP_PLATFORM_DEVICE_LINUX_H_ | 5 #ifndef SKIA_EXT_BITMAP_PLATFORM_DEVICE_LINUX_H_ | 
| 6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_LINUX_H_ | 6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_LINUX_H_ | 
| 7 #pragma once | 7 #pragma once | 
| 8 | 8 | 
| 9 #include "base/ref_counted.h" | 9 #include "base/ref_counted.h" | 
| 10 #include "skia/ext/platform_device_linux.h" | 10 #include "skia/ext/platform_device_linux.h" | 
| 11 | 11 | 
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| 59 // | 59 // | 
| 60 // This is all quite ok for test_shell. In the future we will want to use | 60 // This is all quite ok for test_shell. In the future we will want to use | 
| 61 // shared memory between the renderer and the main process at least. In this | 61 // shared memory between the renderer and the main process at least. In this | 
| 62 // case we'll probably create the buffer from a precreated region of memory. | 62 // case we'll probably create the buffer from a precreated region of memory. | 
| 63 // ----------------------------------------------------------------------------- | 63 // ----------------------------------------------------------------------------- | 
| 64 class BitmapPlatformDevice : public PlatformDevice { | 64 class BitmapPlatformDevice : public PlatformDevice { | 
| 65   // A reference counted cairo surface | 65   // A reference counted cairo surface | 
| 66   class BitmapPlatformDeviceData; | 66   class BitmapPlatformDeviceData; | 
| 67 | 67 | 
| 68  public: | 68  public: | 
| 69   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque); |  | 
| 70 |  | 
| 71   // This doesn't take ownership of |data| |  | 
| 72   static BitmapPlatformDevice* Create(int width, int height, |  | 
| 73                                       bool is_opaque, uint8_t* data); |  | 
| 74 |  | 
| 75   // Create a BitmapPlatformDeviceLinux from an already constructed bitmap; | 69   // Create a BitmapPlatformDeviceLinux from an already constructed bitmap; | 
| 76   // you should probably be using Create(). This may become private later if | 70   // you should probably be using Create(). This may become private later if | 
| 77   // we ever have to share state between some native drawing UI and Skia, like | 71   // we ever have to share state between some native drawing UI and Skia, like | 
| 78   // the Windows and Mac versions of this class do. | 72   // the Windows and Mac versions of this class do. | 
| 79   // | 73   // | 
| 80   // This object takes ownership of @data. | 74   // This object takes ownership of @data. | 
| 81   BitmapPlatformDevice(const SkBitmap& other, BitmapPlatformDeviceData* data); | 75   BitmapPlatformDevice(const SkBitmap& other, BitmapPlatformDeviceData* data); | 
| 82   virtual ~BitmapPlatformDevice(); |  | 
| 83   BitmapPlatformDevice& operator=(const BitmapPlatformDevice& other); |  | 
| 84 | 76 | 
| 85   // A stub copy constructor.  Needs to be properly implemented. | 77   // A stub copy constructor.  Needs to be properly implemented. | 
| 86   BitmapPlatformDevice(const BitmapPlatformDevice& other); | 78   BitmapPlatformDevice(const BitmapPlatformDevice& other); | 
| 87 | 79 | 
| 88   virtual SkDeviceFactory* getDeviceFactory(); | 80   virtual ~BitmapPlatformDevice(); | 
|  | 81 | 
|  | 82   BitmapPlatformDevice& operator=(const BitmapPlatformDevice& other); | 
|  | 83 | 
|  | 84   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque); | 
|  | 85 | 
|  | 86   // This doesn't take ownership of |data| | 
|  | 87   static BitmapPlatformDevice* Create(int width, int height, | 
|  | 88                                       bool is_opaque, uint8_t* data); | 
| 89 | 89 | 
| 90   virtual void makeOpaque(int x, int y, int width, int height); | 90   virtual void makeOpaque(int x, int y, int width, int height); | 
| 91 | 91 | 
| 92   // Bitmaps aren't vector graphics. | 92   // Overridden from SkDevice: | 
|  | 93   virtual SkDeviceFactory* getDeviceFactory(); | 
|  | 94   virtual void setMatrixClip(const SkMatrix& transform, const SkRegion& region); | 
|  | 95 | 
|  | 96   // Overridden from PlatformDevice: | 
| 93   virtual bool IsVectorial(); | 97   virtual bool IsVectorial(); | 
| 94 |  | 
| 95   // If someone wants to paint on a Cairo surface version of our |  | 
| 96   // buffer, then give them the surface we're already using. |  | 
| 97   virtual cairo_t* beginPlatformPaint(); | 98   virtual cairo_t* beginPlatformPaint(); | 
| 98 | 99 | 
| 99   // Loads the given transform and clipping region into the HDC. This is |  | 
| 100   // overridden from SkDevice. |  | 
| 101   virtual void setMatrixClip(const SkMatrix& transform, const SkRegion& region); |  | 
| 102 |  | 
| 103  private: | 100  private: | 
| 104   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque, | 101   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque, | 
| 105                                       cairo_surface_t* surface); | 102                                       cairo_surface_t* surface); | 
| 106 | 103 | 
| 107   scoped_refptr<BitmapPlatformDeviceData> data_; | 104   scoped_refptr<BitmapPlatformDeviceData> data_; | 
| 108 }; | 105 }; | 
| 109 | 106 | 
| 110 }  // namespace skia | 107 }  // namespace skia | 
| 111 | 108 | 
| 112 #endif  // SKIA_EXT_BITMAP_PLATFORM_DEVICE_LINUX_H_ | 109 #endif  // SKIA_EXT_BITMAP_PLATFORM_DEVICE_LINUX_H_ | 
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