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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 SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ | 5 #ifndef SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ |
6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ | 6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
10 #include "skia/ext/platform_device.h" | 10 #include "skia/ext/platform_device.h" |
11 | 11 |
12 namespace skia { | 12 namespace skia { |
13 | 13 |
14 // ----------------------------------------------------------------------------- | 14 // ----------------------------------------------------------------------------- |
15 // For now we just use SkBitmap for SkDevice | 15 // For now we just use SkBitmap for SkDevice |
16 // | 16 // |
17 // This is all quite ok for test_shell. In the future we will want to use | 17 // This is all quite ok for test_shell. In the future we will want to use |
18 // shared memory between the renderer and the main process at least. In this | 18 // shared memory between the renderer and the main process at least. In this |
19 // case we'll probably create the buffer from a precreated region of memory. | 19 // case we'll probably create the buffer from a precreated region of memory. |
20 // ----------------------------------------------------------------------------- | 20 // ----------------------------------------------------------------------------- |
21 class BitmapPlatformDevice : public PlatformDevice, public SkDevice { | 21 class BitmapPlatformDevice : public PlatformDevice, public SkDevice { |
22 public: | 22 public: |
| 23 // Construct a BitmapPlatformDevice. |is_opaque| should be set if the caller |
| 24 // knows the bitmap will be completely opaque and allows some optimizations. |
| 25 // The bitmap is not initialized. |
23 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque); | 26 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque); |
24 | 27 |
25 // This doesn't take ownership of |data| | 28 // Construct a BitmapPlatformDevice, as above. |
| 29 // If |is_opaque| is false, the bitmap is initialized to 0. |
| 30 static BitmapPlatformDevice* CreateAndClear(int width, int height, |
| 31 bool is_opaque); |
| 32 |
| 33 // This doesn't take ownership of |data|. If |data| is null, the bitmap |
| 34 // is not initialized to 0. |
26 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque, | 35 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque, |
27 uint8_t* data); | 36 uint8_t* data); |
28 | 37 |
29 // Create a BitmapPlatformDevice from an already constructed bitmap; | 38 // Create a BitmapPlatformDevice from an already constructed bitmap; |
30 // you should probably be using Create(). This may become private later if | 39 // you should probably be using Create(). This may become private later if |
31 // we ever have to share state between some native drawing UI and Skia, like | 40 // we ever have to share state between some native drawing UI and Skia, like |
32 // the Windows and Mac versions of this class do. | 41 // the Windows and Mac versions of this class do. |
33 explicit BitmapPlatformDevice(const SkBitmap& other); | 42 explicit BitmapPlatformDevice(const SkBitmap& other); |
34 virtual ~BitmapPlatformDevice(); | 43 virtual ~BitmapPlatformDevice(); |
35 | 44 |
36 virtual PlatformSurface BeginPlatformPaint() OVERRIDE; | 45 virtual PlatformSurface BeginPlatformPaint() OVERRIDE; |
37 virtual void DrawToNativeContext(PlatformSurface surface, int x, int y, | 46 virtual void DrawToNativeContext(PlatformSurface surface, int x, int y, |
38 const PlatformRect* src_rect) OVERRIDE; | 47 const PlatformRect* src_rect) OVERRIDE; |
39 | 48 |
40 protected: | 49 protected: |
41 virtual SkDevice* onCreateCompatibleDevice(SkBitmap::Config, int width, | 50 virtual SkDevice* onCreateCompatibleDevice(SkBitmap::Config, int width, |
42 int height, bool isOpaque, | 51 int height, bool isOpaque, |
43 Usage usage) OVERRIDE; | 52 Usage usage) OVERRIDE; |
44 | 53 |
45 private: | 54 private: |
46 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice); | 55 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice); |
47 }; | 56 }; |
48 | 57 |
49 } // namespace skia | 58 } // namespace skia |
50 | 59 |
51 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ | 60 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ |
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