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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 |
11 #include "SkColorSpace.h" | 11 #include "SkColorSpace.h" |
12 #include "SkColorSpace_Base.h" | 12 #include "SkColorSpace_Base.h" |
13 | 13 |
14 class SkColorSpaceXform : SkNoncopyable { | 14 class SkColorSpaceXform : SkNoncopyable { |
15 public: | 15 public: |
16 | 16 |
17 /** | 17 /** |
18 * Create an object to handle color space conversions. | 18 * Create an object to handle color space conversions. |
19 * | 19 * |
20 * @param srcSpace The encoded color space. | 20 * @param srcSpace The encoded color space. |
21 * @param dstSpace The destination color space. | 21 * @param dstSpace The destination color space. |
22 * | 22 * |
23 */ | 23 */ |
24 static std::unique_ptr<SkColorSpaceXform> New(const sk_sp<SkColorSpace>& src
Space, | 24 static std::unique_ptr<SkColorSpaceXform> New(const sk_sp<SkColorSpace>& src
Space, |
25 const sk_sp<SkColorSpace>& dst
Space); | 25 const sk_sp<SkColorSpace>& dst
Space); |
26 | 26 |
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 opaque and stored in RGBA_8888, and the dst is also opaque an
d stored |
30 * The output is not premultiplied. | 30 * in 8888 platform format. |
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_RGB1_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 Sk2Dot2Xform : public SkColorSpaceXform { | 37 class SkSRGBTo2Dot2Xform : 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_RGB1_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; |
41 | 41 |
42 private: | 42 private: |
43 Sk2Dot2Xform(const SkMatrix44& srcToDst); | 43 SkSRGBTo2Dot2Xform(const SkMatrix44& srcToDst); |
44 | 44 |
45 float fSrcToDst[16]; | 45 float fSrcToDst[12]; |
46 | 46 |
47 friend class SkColorSpaceXform; | 47 friend class SkColorSpaceXform; |
48 }; | 48 }; |
| 49 |
| 50 class Sk2Dot2To2Dot2Xform : public SkColorSpaceXform { |
| 51 public: |
| 52 |
| 53 void xform_RGB1_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; |
| 54 |
| 55 private: |
| 56 Sk2Dot2To2Dot2Xform(const SkMatrix44& srcToDst); |
| 57 |
| 58 float fSrcToDst[12]; |
| 59 |
| 60 friend class SkColorSpaceXform; |
| 61 }; |
49 | 62 |
50 /** | 63 /** |
51 * Works for any valid src and dst profiles. | 64 * Works for any valid src and dst profiles. |
52 */ | 65 */ |
53 class SkDefaultXform : public SkColorSpaceXform { | 66 class SkDefaultXform : public SkColorSpaceXform { |
54 public: | 67 public: |
55 | 68 |
56 void xform_RGBA_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; | 69 void xform_RGB1_8888(uint32_t* dst, const uint32_t* src, uint32_t len) const
override; |
57 | 70 |
58 private: | 71 private: |
59 SkDefaultXform(const sk_sp<SkGammas>& srcGammas, const SkMatrix44& srcToDst, | 72 SkDefaultXform(const sk_sp<SkGammas>& srcGammas, const SkMatrix44& srcToDst, |
60 const sk_sp<SkGammas>& dstGammas); | 73 const sk_sp<SkGammas>& dstGammas); |
61 | 74 |
62 sk_sp<SkGammas> fSrcGammas; | 75 sk_sp<SkGammas> fSrcGammas; |
63 const SkMatrix44 fSrcToDst; | 76 const SkMatrix44 fSrcToDst; |
64 sk_sp<SkGammas> fDstGammas; | 77 sk_sp<SkGammas> fDstGammas; |
65 | 78 |
66 friend class SkColorSpaceXform; | 79 friend class SkColorSpaceXform; |
67 friend class ColorSpaceXformTest; | 80 friend class ColorSpaceXformTest; |
68 }; | 81 }; |
69 | 82 |
70 #endif | 83 #endif |
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