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comparison: gfx/skia/trunk/include/utils/SkUnitMappers.h
gfx/skia/trunk/include/utils/SkUnitMappers.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:c92677b9e75b |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2008 The Android Open Source Project | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #ifndef SkUnitMappers_DEFINED | |
| 11 #define SkUnitMappers_DEFINED | |
| 12 | |
| 13 #include "SkUnitMapper.h" | |
| 14 | |
| 15 /** This discretizes the range [0...1) into N discret values. | |
| 16 */ | |
| 17 class SkDiscreteMapper : public SkUnitMapper { | |
| 18 public: | |
| 19 SkDiscreteMapper(int segments); | |
| 20 // override from SkUnitMapper | |
| 21 virtual uint16_t mapUnit16(uint16_t x); | |
| 22 | |
| 23 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiscreteMapper) | |
| 24 | |
| 25 protected: | |
| 26 SkDiscreteMapper(SkReadBuffer& ); | |
| 27 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; | |
| 28 | |
| 29 private: | |
| 30 int fSegments; | |
| 31 int32_t fScale; // computed from fSegments | |
| 32 | |
| 33 typedef SkUnitMapper INHERITED; | |
| 34 }; | |
| 35 | |
| 36 /** This returns cos(x), to simulate lighting a sphere, where 0 maps to the | |
| 37 center of the sphere, and 1 maps to the edge. | |
| 38 */ | |
| 39 class SkCosineMapper : public SkUnitMapper { | |
| 40 public: | |
| 41 SkCosineMapper() {} | |
| 42 // override from SkUnitMapper | |
| 43 virtual uint16_t mapUnit16(uint16_t x); | |
| 44 | |
| 45 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkCosineMapper) | |
| 46 | |
| 47 protected: | |
| 48 SkCosineMapper(SkReadBuffer&); | |
| 49 | |
| 50 private: | |
| 51 | |
| 52 typedef SkUnitMapper INHERITED; | |
| 53 }; | |
| 54 | |
| 55 #endif |
