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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkPorterDuff_DEFINED | 8 #ifndef SkPorterDuff_DEFINED |
9 #define SkPorterDuff_DEFINED | 9 #define SkPorterDuff_DEFINED |
10 | 10 |
11 #include "SkColor.h" | 11 #include "SkColor.h" |
12 #include "SkXfermode.h" | 12 #include "SkXfermode.h" |
13 | 13 |
14 class SkXfermode; | 14 class SkXfermode; |
15 | 15 |
16 /** DEPRECATED - use SkXfermode::Mode instead | |
17 */ | |
18 class SK_API SkPorterDuff { | 16 class SK_API SkPorterDuff { |
19 public: | 17 public: |
20 /** List of predefined xfermodes. In general, the algebra for the modes | 18 /** List of predefined xfermodes. In general, the algebra for the modes |
21 uses the following symbols: | 19 uses the following symbols: |
22 Sa, Sc - source alpha and color | 20 Sa, Sc - source alpha and color |
23 Da, Dc - destination alpha and color (before compositing) | 21 Da, Dc - destination alpha and color (before compositing) |
24 [a, c] - Resulting (alpha, color) values | 22 [a, c] - Resulting (alpha, color) values |
25 For these equations, the colors are in premultiplied state. | 23 For these equations, the colors are in premultiplied state. |
26 If no xfermode is specified, kSrcOver is assumed. | 24 If no xfermode is specified, kSrcOver is assumed. |
27 */ | 25 */ |
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69 /** If the specified xfermode advertises itself as one of the porterduff | 67 /** If the specified xfermode advertises itself as one of the porterduff |
70 modes (via SkXfermode::Coeff), return true and if not null, set mode | 68 modes (via SkXfermode::Coeff), return true and if not null, set mode |
71 to the corresponding porterduff mode. If it is not recognized as a one, | 69 to the corresponding porterduff mode. If it is not recognized as a one, |
72 return false and ignore the mode parameter. | 70 return false and ignore the mode parameter. |
73 */ | 71 */ |
74 static bool IsMode(SkXfermode*, Mode* mode); | 72 static bool IsMode(SkXfermode*, Mode* mode); |
75 | 73 |
76 /** Return the corersponding SkXfermode::Mode | 74 /** Return the corersponding SkXfermode::Mode |
77 */ | 75 */ |
78 static SkXfermode::Mode ToXfermodeMode(Mode); | 76 static SkXfermode::Mode ToXfermodeMode(Mode); |
79 }; | 77 } SK_ATTR_DEPRECATED("use SkXfermode::Mode"); |
80 | 78 |
81 #endif | 79 #endif |
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