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