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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_Base_DEFINED | 8 #ifndef SkColorSpaceXform_Base_DEFINED |
9 #define SkColorSpaceXform_Base_DEFINED | 9 #define SkColorSpaceXform_Base_DEFINED |
10 | 10 |
11 #include "SkColorSpace.h" | 11 #include "SkColorSpace.h" |
12 #include "SkColorSpace_Base.h" | 12 #include "SkColorSpace_Base.h" |
13 #include "SkColorSpaceXform.h" | 13 #include "SkColorSpaceXform.h" |
14 #include "SkResourceCache.h" | 14 #include "SkResourceCache.h" |
15 | 15 |
| 16 class SkColorSpace_XYZ; |
| 17 |
16 class SkColorSpaceXform_Base : public SkColorSpaceXform { | 18 class SkColorSpaceXform_Base : public SkColorSpaceXform { |
17 public: | 19 public: |
18 static constexpr int kDstGammaTableSize = 1024; | 20 static constexpr int kDstGammaTableSize = 1024; |
19 | 21 |
20 protected: | 22 protected: |
21 virtual bool onApply(ColorFormat dstFormat, void* dst, ColorFormat srcFormat
, const void* src, | 23 virtual bool onApply(ColorFormat dstFormat, void* dst, ColorFormat srcFormat
, const void* src, |
22 int count, SkAlphaType alphaType) const = 0; | 24 int count, SkAlphaType alphaType) const = 0; |
23 | 25 |
24 private: | 26 private: |
25 static void BuildDstGammaTables(const uint8_t* outGammaTables[3], uint8_t* g
ammaTableStorage, | 27 static void BuildDstGammaTables(const uint8_t* outGammaTables[3], uint8_t* g
ammaTableStorage, |
26 const SkColorSpace* space, bool gammasAreMat
ching); | 28 const SkColorSpace_XYZ* space, bool gammasAr
eMatching); |
27 | 29 |
28 friend class SkColorSpaceXform; | 30 friend class SkColorSpaceXform; |
29 friend class SkColorSpace_Base; | 31 friend class SkColorSpace_XYZ; |
30 }; | 32 }; |
31 | 33 |
32 enum SrcGamma { | 34 enum SrcGamma { |
33 kLinear_SrcGamma, | 35 kLinear_SrcGamma, |
34 kTable_SrcGamma, | 36 kTable_SrcGamma, |
35 }; | 37 }; |
36 | 38 |
37 enum DstGamma { | 39 enum DstGamma { |
38 kLinear_DstGamma, | 40 kLinear_DstGamma, |
39 kSRGB_DstGamma, | 41 kSRGB_DstGamma, |
40 k2Dot2_DstGamma, | 42 k2Dot2_DstGamma, |
41 kTable_DstGamma, | 43 kTable_DstGamma, |
42 }; | 44 }; |
43 | 45 |
44 enum ColorSpaceMatch { | 46 enum ColorSpaceMatch { |
45 kNone_ColorSpaceMatch, | 47 kNone_ColorSpaceMatch, |
46 kGamut_ColorSpaceMatch, | 48 kGamut_ColorSpaceMatch, |
47 kFull_ColorSpaceMatch, | 49 kFull_ColorSpaceMatch, |
48 }; | 50 }; |
49 | 51 |
50 template <SrcGamma kSrc, DstGamma kDst, ColorSpaceMatch kCSM> | 52 template <SrcGamma kSrc, DstGamma kDst, ColorSpaceMatch kCSM> |
51 class SkColorSpaceXform_XYZ : public SkColorSpaceXform_Base { | 53 class SkColorSpaceXform_XYZ : public SkColorSpaceXform_Base { |
52 protected: | 54 protected: |
53 bool onApply(ColorFormat dstFormat, void* dst, ColorFormat srcFormat, const
void* src, | 55 bool onApply(ColorFormat dstFormat, void* dst, ColorFormat srcFormat, const
void* src, |
54 int count, SkAlphaType alphaType) const override; | 56 int count, SkAlphaType alphaType) const override; |
55 | 57 |
56 private: | 58 private: |
57 SkColorSpaceXform_XYZ(SkColorSpace* srcSpace, const SkMatrix44& srcToDst, | 59 SkColorSpaceXform_XYZ(SkColorSpace_XYZ* srcSpace, const SkMatrix44& srcToDst
, |
58 SkColorSpace* dstSpace); | 60 SkColorSpace_XYZ* dstSpace); |
59 | |
60 sk_sp<SkColorLookUpTable> fColorLUT; | |
61 | 61 |
62 // Contain pointers into storage or pointers into precomputed tables. | 62 // Contain pointers into storage or pointers into precomputed tables. |
63 const float* fSrcGammaTables[3]; | 63 const float* fSrcGammaTables[3]; |
64 SkAutoTMalloc<float> fSrcStorage; | 64 SkAutoTMalloc<float> fSrcStorage; |
65 const uint8_t* fDstGammaTables[3]; | 65 const uint8_t* fDstGammaTables[3]; |
66 sk_sp<SkData> fDstStorage; | 66 sk_sp<SkData> fDstStorage; |
67 | 67 |
68 float fSrcToDst[16]; | 68 float fSrcToDst[16]; |
69 | 69 |
70 friend class SkColorSpaceXform; | 70 friend class SkColorSpaceXform; |
71 friend std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(SkColorSpace* sp
ace); | 71 friend std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(SkColorSpace_XYZ
* space); |
72 }; | 72 }; |
73 | 73 |
74 // For testing. Bypasses opts for when src and dst color spaces are equal. | 74 // For testing. Bypasses opts for when src and dst color spaces are equal. |
75 std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(SkColorSpace* space); | 75 std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(SkColorSpace_XYZ* space); |
76 | 76 |
77 #endif | 77 #endif |
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