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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 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 SkColorSpaceXform_DEFINED | 8 #ifndef SkColorSpaceXform_DEFINED |
9 #define SkColorSpaceXform_DEFINED | 9 #define SkColorSpaceXform_DEFINED |
10 | 10 |
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27 /** | 27 /** |
28 * Apply the color conversion to a src buffer, storing the output in the ds
t buffer. | 28 * Apply the color conversion to a src buffer, storing the output in the ds
t buffer. |
29 * The src is stored in RGBA_8888 and the dst is stored in 8888 platform fo
rmat. | 29 * The src is stored in RGBA_8888 and the dst is stored in 8888 platform fo
rmat. |
30 * The output is not premultiplied. | 30 * The output is not premultiplied. |
31 */ | 31 */ |
32 virtual void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t le
n) const = 0; | 32 virtual void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t le
n) const = 0; |
33 | 33 |
34 virtual ~SkColorSpaceXform() {} | 34 virtual ~SkColorSpaceXform() {} |
35 }; | 35 }; |
36 | 36 |
37 class SkGammaByValueXform : public SkColorSpaceXform { | 37 class Sk2Dot2Xform : public SkColorSpaceXform { |
38 public: | 38 public: |
39 | 39 |
40 void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; | 40 void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; |
41 | 41 |
42 private: | 42 private: |
43 SkGammaByValueXform(float srcGammas[3], const SkMatrix44& srcToDst, float ds
tGammas[3]); | 43 Sk2Dot2Xform(const SkMatrix44& srcToDst); |
44 | 44 |
45 float fSrcGammas[3]; | 45 float fSrcToDst[16]; |
46 const SkMatrix44 fSrcToDst; | |
47 float fDstGammas[3]; | |
48 | 46 |
49 friend class SkColorSpaceXform; | 47 friend class SkColorSpaceXform; |
50 }; | 48 }; |
51 | 49 |
52 /** | 50 /** |
53 * Works for any valid src and dst profiles. | 51 * Works for any valid src and dst profiles. |
54 */ | 52 */ |
55 class SkDefaultXform : public SkColorSpaceXform { | 53 class SkDefaultXform : public SkColorSpaceXform { |
56 public: | 54 public: |
57 | 55 |
58 void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; | 56 void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; |
59 | 57 |
60 private: | 58 private: |
61 SkDefaultXform(const sk_sp<SkGammas>& srcGammas, const SkMatrix44& srcToDst, | 59 SkDefaultXform(const sk_sp<SkGammas>& srcGammas, const SkMatrix44& srcToDst, |
62 const sk_sp<SkGammas>& dstGammas); | 60 const sk_sp<SkGammas>& dstGammas); |
63 | 61 |
64 sk_sp<SkGammas> fSrcGammas; | 62 sk_sp<SkGammas> fSrcGammas; |
65 const SkMatrix44 fSrcToDst; | 63 const SkMatrix44 fSrcToDst; |
66 sk_sp<SkGammas> fDstGammas; | 64 sk_sp<SkGammas> fDstGammas; |
67 | 65 |
68 friend class SkColorSpaceXform; | 66 friend class SkColorSpaceXform; |
69 friend class ColorSpaceXformTest; | 67 friend class ColorSpaceXformTest; |
70 }; | 68 }; |
71 | 69 |
72 #endif | 70 #endif |
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