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Side by Side Diff: src/core/SkColorSpaceXform_Base.h

Issue 2389983002: Refactored SkColorSpace and added in a Lab PCS GM (Closed)
Patch Set: migrated call from SkColorSpace_Base::makeLinearGamma() to SkColorSpace_XYZ::makeLinearGamma() Created 4 years, 2 months ago
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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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