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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 "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
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28 // DEVICE'S PIXEL DATA TO ANOTHER BITMAP, make sure you copy instead. | 28 // DEVICE'S PIXEL DATA TO ANOTHER BITMAP, make sure you copy instead. |
29 class SK_API BitmapPlatformDevice : public PlatformDevice, public SkDevice { | 29 class SK_API BitmapPlatformDevice : public PlatformDevice, public SkDevice { |
30 public: | 30 public: |
31 // Factory function. The screen DC is used to create the bitmap, and will not | 31 // Factory function. The screen DC is used to create the bitmap, and will not |
32 // be stored beyond this function. is_opaque should be set if the caller | 32 // be stored beyond this function. is_opaque should be set if the caller |
33 // knows the bitmap will be completely opaque and allows some optimizations. | 33 // knows the bitmap will be completely opaque and allows some optimizations. |
34 // | 34 // |
35 // The shared_section parameter is optional (pass NULL for default behavior). | 35 // The shared_section parameter is optional (pass NULL for default behavior). |
36 // If shared_section is non-null, then it must be a handle to a file-mapping | 36 // If shared_section is non-null, then it must be a handle to a file-mapping |
37 // object returned by CreateFileMapping. See CreateDIBSection for details. | 37 // object returned by CreateFileMapping. See CreateDIBSection for details. |
38 static BitmapPlatformDevice* create(HDC screen_dc, int width, int height, | 38 // If shared_section is null, the bitmap backing store is not initialized. |
msw
2012/03/16 07:13:22
nit: vertical bars around |shared_section|.
Jeff Timanus
2012/03/16 15:52:42
Done.
| |
39 static BitmapPlatformDevice* Create(HDC screen_dc, int width, int height, | |
39 bool is_opaque, HANDLE shared_section); | 40 bool is_opaque, HANDLE shared_section); |
40 | 41 |
41 // This version is the same as above but will get the screen DC itself. | 42 // This version is the same as above but will get the screen DC itself. |
42 static BitmapPlatformDevice* create(int width, int height, bool is_opaque, | 43 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque, |
43 HANDLE shared_section); | 44 HANDLE shared_section); |
44 | 45 |
46 // Create a BitmapPlatformDevice wit no shared section. The bitmap is not | |
msw
2012/03/16 07:13:22
spelling nit: with
Jeff Timanus
2012/03/16 15:52:42
Done.
| |
47 // initialized to 0. | |
48 static BitmapPlatformDevice* Create(int width, int height, bool is_opaque); | |
49 | |
50 // Creates a BitmapPlatformDevice instance respecting the parameters as above. | |
51 // If |is_opaque| is false, then the bitmap is initialzed to 0. | |
52 static BitmapPlatformDevice* CreateAndClear(int width, int height, | |
53 bool is_opaque); | |
54 | |
45 virtual ~BitmapPlatformDevice(); | 55 virtual ~BitmapPlatformDevice(); |
46 | 56 |
47 // PlatformDevice overrides | 57 // PlatformDevice overrides |
48 // Retrieves the bitmap DC, which is the memory DC for our bitmap data. The | 58 // Retrieves the bitmap DC, which is the memory DC for our bitmap data. The |
49 // bitmap DC is lazy created. | 59 // bitmap DC is lazy created. |
50 virtual PlatformSurface BeginPlatformPaint() OVERRIDE; | 60 virtual PlatformSurface BeginPlatformPaint() OVERRIDE; |
51 virtual void EndPlatformPaint() OVERRIDE; | 61 virtual void EndPlatformPaint() OVERRIDE; |
52 | 62 |
53 virtual void DrawToNativeContext(HDC dc, int x, int y, | 63 virtual void DrawToNativeContext(HDC dc, int x, int y, |
54 const RECT* src_rect) OVERRIDE; | 64 const RECT* src_rect) OVERRIDE; |
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85 #ifdef SK_DEBUG | 95 #ifdef SK_DEBUG |
86 int begin_paint_count_; | 96 int begin_paint_count_; |
87 #endif | 97 #endif |
88 | 98 |
89 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice); | 99 DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice); |
90 }; | 100 }; |
91 | 101 |
92 } // namespace skia | 102 } // namespace skia |
93 | 103 |
94 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_ | 104 #endif // SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_ |
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