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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
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 SkArithmeticMode_DEFINED | 8 #ifndef SkArithmeticMode_DEFINED |
9 #define SkArithmeticMode_DEFINED | 9 #define SkArithmeticMode_DEFINED |
10 | 10 |
11 #include "SkFlattenable.h" | 11 #include "SkFlattenable.h" |
12 #include "SkScalar.h" | 12 #include "SkScalar.h" |
13 | 13 #include "SkXfermode.h" |
14 class SkXfermode; | |
15 | 14 |
16 class SK_API SkArithmeticMode { | 15 class SK_API SkArithmeticMode { |
17 public: | 16 public: |
18 /** | 17 /** |
19 * result = clamp[k1 * src * dst + k2 * src + k3 * dst + k4] | 18 * result = clamp[k1 * src * dst + k2 * src + k3 * dst + k4] |
20 * | 19 * |
21 * k1=k2=k3=0, k4=1.0 results in returning opaque white | 20 * k1=k2=k3=0, k4=1.0 results in returning opaque white |
22 * k1=k3=k4=0, k2=1.0 results in returning the src | 21 * k1=k3=k4=0, k2=1.0 results in returning the src |
23 * k1=k2=k4=0, k3=1.0 results in returning the dst | 22 * k1=k2=k4=0, k3=1.0 results in returning the dst |
24 */ | 23 */ |
| 24 static sk_sp<SkXfermode> Make(SkScalar k1, SkScalar k2, SkScalar k3, SkScala
r k4, |
| 25 bool enforcePMColor = true); |
| 26 #ifdef SK_SUPPORT_LEGACY_XFERMODE_PTR |
25 static SkXfermode* Create(SkScalar k1, SkScalar k2, | 27 static SkXfermode* Create(SkScalar k1, SkScalar k2, |
26 SkScalar k3, SkScalar k4, | 28 SkScalar k3, SkScalar k4, |
27 bool enforcePMColor = true); | 29 bool enforcePMColor = true) { |
| 30 return Make(k1, k2, k3, k4, enforcePMColor).release(); |
| 31 } |
| 32 #endif |
28 | 33 |
29 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP(); | 34 SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP(); |
30 | 35 |
31 private: | 36 private: |
32 SkArithmeticMode(); // can't be instantiated | 37 SkArithmeticMode(); // can't be instantiated |
33 }; | 38 }; |
34 | 39 |
35 #endif | 40 #endif |
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