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Side by Side Diff: skia/ext/bitmap_platform_device_android.h

Issue 22796028: Updating Chromium to Skia SkBaseDevice/SkBitmapDevice split (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Added TODOs Created 7 years, 3 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 SkBitmapDevice
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 SkDevice, public PlatformDevice { 21 class BitmapPlatformDevice : public SkBitmapDevice, public PlatformDevice {
22 public: 22 public:
23 // Construct a BitmapPlatformDevice. |is_opaque| should be set if the caller 23 // Construct a BitmapPlatformDevice. |is_opaque| should be set if the caller
24 // knows the bitmap will be completely opaque and allows some optimizations. 24 // knows the bitmap will be completely opaque and allows some optimizations.
25 // The bitmap is not initialized. 25 // The bitmap is not initialized.
26 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque); 26 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque);
27 27
28 // Construct a BitmapPlatformDevice, as above. 28 // Construct a BitmapPlatformDevice, as above.
29 // If |is_opaque| is false, the bitmap is initialized to 0. 29 // If |is_opaque| is false, the bitmap is initialized to 0.
30 static BitmapPlatformDevice* CreateAndClear(int width, int height, 30 static BitmapPlatformDevice* CreateAndClear(int width, int height,
31 bool is_opaque); 31 bool is_opaque);
32 32
33 // This doesn't take ownership of |data|. If |data| is null, the bitmap 33 // This doesn't take ownership of |data|. If |data| is null, the bitmap
34 // is not initialized to 0. 34 // is not initialized to 0.
35 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque, 35 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque,
36 uint8_t* data); 36 uint8_t* data);
37 37
38 // Create a BitmapPlatformDevice from an already constructed bitmap; 38 // Create a BitmapPlatformDevice from an already constructed bitmap;
39 // 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
40 // 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
41 // the Windows and Mac versions of this class do. 41 // the Windows and Mac versions of this class do.
42 explicit BitmapPlatformDevice(const SkBitmap& other); 42 explicit BitmapPlatformDevice(const SkBitmap& other);
43 virtual ~BitmapPlatformDevice(); 43 virtual ~BitmapPlatformDevice();
44 44
45 virtual PlatformSurface BeginPlatformPaint() OVERRIDE; 45 virtual PlatformSurface BeginPlatformPaint() OVERRIDE;
46 virtual void DrawToNativeContext(PlatformSurface surface, int x, int y, 46 virtual void DrawToNativeContext(PlatformSurface surface, int x, int y,
47 const PlatformRect* src_rect) OVERRIDE; 47 const PlatformRect* src_rect) OVERRIDE;
48 48
49 protected: 49 protected:
50 virtual SkDevice* onCreateCompatibleDevice(SkBitmap::Config, int width, 50 virtual SkBaseDevice* onCreateCompatibleDevice(SkBitmap::Config, int width,
51 int height, bool isOpaque, 51 int height, bool isOpaque,
52 Usage usage) OVERRIDE; 52 Usage usage) OVERRIDE;
53 53
54 private: 54 private:
55 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice); 55 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice);
56 }; 56 };
57 57
58 } // namespace skia 58 } // namespace skia
59 59
60 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_ 60 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_ANDROID_H_
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