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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 #include "SkImageInfo.h" | 13 #include "SkImageInfo.h" |
14 | 14 |
15 class SkColorSpaceXform : SkNoncopyable { | 15 class SkColorSpaceXform : SkNoncopyable { |
16 public: | 16 public: |
17 | 17 |
18 /** | 18 /** |
19 * Create an object to handle color space conversions. | 19 * Create an object to handle color space conversions. |
20 * | 20 * |
21 * @param srcSpace The encoded color space. | 21 * @param srcSpace The encoded color space. |
22 * @param dstSpace The destination color space. | 22 * @param dstSpace The destination color space. |
23 * | 23 * |
24 */ | 24 */ |
25 static std::unique_ptr<SkColorSpaceXform> New(const sk_sp<SkColorSpace>& src
Space, | 25 static std::unique_ptr<SkColorSpaceXform> New(SkColorSpace* srcSpace, SkColo
rSpace* dstSpace); |
26 const sk_sp<SkColorSpace>& dst
Space); | |
27 | 26 |
28 enum ColorFormat : uint8_t { | 27 enum ColorFormat : uint8_t { |
29 kRGBA_8888_ColorFormat, | 28 kRGBA_8888_ColorFormat, |
30 kBGRA_8888_ColorFormat, | 29 kBGRA_8888_ColorFormat, |
31 kRGBA_F16_ColorFormat, | 30 kRGBA_F16_ColorFormat, |
32 kRGBA_F32_ColorFormat, | 31 kRGBA_F32_ColorFormat, |
33 }; | 32 }; |
34 | 33 |
35 /** | 34 /** |
36 * Apply the color conversion to a |src| buffer, storing the output in the
|dst| buffer. | 35 * Apply the color conversion to a |src| buffer, storing the output in the
|dst| buffer. |
(...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
72 template <SrcGamma kSrc, DstGamma kDst, ColorSpaceMatch kCSM> | 71 template <SrcGamma kSrc, DstGamma kDst, ColorSpaceMatch kCSM> |
73 class SkColorSpaceXform_Base : public SkColorSpaceXform { | 72 class SkColorSpaceXform_Base : public SkColorSpaceXform { |
74 public: | 73 public: |
75 | 74 |
76 void apply(void* dst, const uint32_t* src, int len, ColorFormat dstColorForm
at, | 75 void apply(void* dst, const uint32_t* src, int len, ColorFormat dstColorForm
at, |
77 SkAlphaType dstAlphaType) const override; | 76 SkAlphaType dstAlphaType) const override; |
78 | 77 |
79 static constexpr int kDstGammaTableSize = 1024; | 78 static constexpr int kDstGammaTableSize = 1024; |
80 | 79 |
81 private: | 80 private: |
82 SkColorSpaceXform_Base(const sk_sp<SkColorSpace>& srcSpace, const SkMatrix44
& srcToDst, | 81 SkColorSpaceXform_Base(SkColorSpace* srcSpace, const SkMatrix44& srcToDst, |
83 const sk_sp<SkColorSpace>& dstSpace); | 82 SkColorSpace* dstSpace); |
84 | 83 |
85 sk_sp<SkColorLookUpTable> fColorLUT; | 84 sk_sp<SkColorLookUpTable> fColorLUT; |
86 | 85 |
87 // Contain pointers into storage or pointers into precomputed tables. | 86 // Contain pointers into storage or pointers into precomputed tables. |
88 const float* fSrcGammaTables[3]; | 87 const float* fSrcGammaTables[3]; |
89 const uint8_t* fDstGammaTables[3]; | 88 const uint8_t* fDstGammaTables[3]; |
90 SkAutoMalloc fStorage; | 89 SkAutoMalloc fStorage; |
91 | 90 |
92 float fSrcToDst[16]; | 91 float fSrcToDst[16]; |
93 | 92 |
94 friend class SkColorSpaceXform; | 93 friend class SkColorSpaceXform; |
95 friend std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(const sk_sp<SkCo
lorSpace>& space); | 94 friend std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(SkColorSpace* sp
ace); |
96 }; | 95 }; |
97 | 96 |
98 // For testing. Bypasses opts for when src and dst color spaces are equal. | 97 // For testing. Bypasses opts for when src and dst color spaces are equal. |
99 std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(const sk_sp<SkColorSpace>&
space); | 98 std::unique_ptr<SkColorSpaceXform> SlowIdentityXform(SkColorSpace* space); |
100 | 99 |
101 #endif | 100 #endif |
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