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

Issue 7273013: Stop using deprecated factory API for SkDevice (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 5 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 SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_ 5 #ifndef SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_
6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_ 6 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/basictypes.h" 9 #include "base/basictypes.h"
10 #include "skia/ext/platform_device_win.h" 10 #include "skia/ext/platform_device_win.h"
11 11
12 namespace skia { 12 namespace skia {
13 13
14 class BitmapPlatformDeviceFactory : public SkDeviceFactory {
15 public:
16 virtual SkDevice* newDevice(SkCanvas* ignored, SkBitmap::Config config,
17 int width, int height,
18 bool isOpaque, bool isForLayer);
19 };
20
21 // A device is basically a wrapper around SkBitmap that provides a surface for 14 // A device is basically a wrapper around SkBitmap that provides a surface for
22 // SkCanvas to draw into. Our device provides a surface Windows can also write 15 // SkCanvas to draw into. Our device provides a surface Windows can also write
23 // to. BitmapPlatformDevice creates a bitmap using CreateDIBSection() in a 16 // to. BitmapPlatformDevice creates a bitmap using CreateDIBSection() in a
24 // format that Skia supports and can then use this to draw ClearType into, etc. 17 // format that Skia supports and can then use this to draw ClearType into, etc.
25 // This pixel data is provided to the bitmap that the device contains so that it 18 // This pixel data is provided to the bitmap that the device contains so that it
26 // can be shared. 19 // can be shared.
27 // 20 //
28 // The device owns the pixel data, when the device goes away, the pixel data 21 // The device owns the pixel data, when the device goes away, the pixel data
29 // also becomes invalid. THIS IS DIFFERENT THAN NORMAL SKIA which uses 22 // also becomes invalid. THIS IS DIFFERENT THAN NORMAL SKIA which uses
30 // reference counting for the pixel data. In normal Skia, you could assign 23 // reference counting for the pixel data. In normal Skia, you could assign
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
68 // overridden from SkDevice. 61 // overridden from SkDevice.
69 virtual void setMatrixClip(const SkMatrix& transform, const SkRegion& region, 62 virtual void setMatrixClip(const SkMatrix& transform, const SkRegion& region,
70 const SkClipStack&); 63 const SkClipStack&);
71 64
72 protected: 65 protected:
73 // Flushes the Windows device context so that the pixel data can be accessed 66 // Flushes the Windows device context so that the pixel data can be accessed
74 // directly by Skia. Overridden from SkDevice, this is called when Skia 67 // directly by Skia. Overridden from SkDevice, this is called when Skia
75 // starts accessing pixel data. 68 // starts accessing pixel data.
76 virtual void onAccessBitmap(SkBitmap* bitmap); 69 virtual void onAccessBitmap(SkBitmap* bitmap);
77 70
78 // Override SkDevice. 71 virtual SkDevice* onCreateCompatibleDevice(SkBitmap::Config, int width,
79 virtual SkDeviceFactory* onNewDeviceFactory(); 72 int height, bool isOpaque,
73 Usage usage);
80 74
81 private: 75 private:
82 // Reference counted data that can be shared between multiple devices. This 76 // Reference counted data that can be shared between multiple devices. This
83 // allows copy constructors and operator= for devices to work properly. The 77 // allows copy constructors and operator= for devices to work properly. The
84 // bitmaps used by the base device class are already refcounted and copyable. 78 // bitmaps used by the base device class are already refcounted and copyable.
85 class BitmapPlatformDeviceData; 79 class BitmapPlatformDeviceData;
86 80
87 // Private constructor. The data should already be ref'ed for us. 81 // Private constructor. The data should already be ref'ed for us.
88 BitmapPlatformDevice(BitmapPlatformDeviceData* data, 82 BitmapPlatformDevice(BitmapPlatformDeviceData* data,
89 const SkBitmap& bitmap); 83 const SkBitmap& bitmap);
90 84
91 // Data associated with this device, guaranteed non-null. We hold a reference 85 // Data associated with this device, guaranteed non-null. We hold a reference
92 // to this object. 86 // to this object.
93 BitmapPlatformDeviceData* data_; 87 BitmapPlatformDeviceData* data_;
94 88
95 #ifdef SK_DEBUG 89 #ifdef SK_DEBUG
96 int begin_paint_count_; 90 int begin_paint_count_;
97 #endif 91 #endif
98 92
99 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice); 93 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice);
100 }; 94 };
101 95
102 } // namespace skia 96 } // namespace skia
103 97
104 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_ 98 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_
105 99
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