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comparison: gfx/skia/trunk/include/effects/SkLerpXfermode.h
gfx/skia/trunk/include/effects/SkLerpXfermode.h
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:8c616ff4c9f4 |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkLerpXfermode_DEFINED | |
| 9 #define SkLerpXfermode_DEFINED | |
| 10 | |
| 11 #include "SkXfermode.h" | |
| 12 | |
| 13 class SK_API SkLerpXfermode : public SkXfermode { | |
| 14 public: | |
| 15 /** | |
| 16 * result = scale * src + (1 - scale) * dst | |
| 17 * | |
| 18 * When scale == 1, this is the same as kSrc_Mode | |
| 19 * When scale == 0, this is the same as kDst_Mode | |
| 20 */ | |
| 21 static SkXfermode* Create(SkScalar scale); | |
| 22 | |
| 23 // overrides from SkXfermode | |
| 24 virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count, | |
| 25 const SkAlpha aa[]) const SK_OVERRIDE; | |
| 26 virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count, | |
| 27 const SkAlpha aa[]) const SK_OVERRIDE; | |
| 28 virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count, | |
| 29 const SkAlpha aa[]) const SK_OVERRIDE; | |
| 30 | |
| 31 SK_TO_STRING_OVERRIDE() | |
| 32 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLerpXfermode) | |
| 33 | |
| 34 protected: | |
| 35 SkLerpXfermode(SkReadBuffer&); | |
| 36 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; | |
| 37 | |
| 38 private: | |
| 39 SkLerpXfermode(unsigned scale256); | |
| 40 | |
| 41 unsigned fScale256; // 0..256 | |
| 42 | |
| 43 typedef SkXfermode INHERITED; | |
| 44 }; | |
| 45 | |
| 46 #endif |
