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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 #include "SkColorSpace.h" | 8 #include "SkColorSpace.h" |
9 #include "SkColorSpace_Base.h" | 9 #include "SkColorSpace_Base.h" |
10 #include "SkColorSpacePriv.h" | 10 #include "SkColorSpacePriv.h" |
11 #include "SkOnce.h" | 11 #include "SkOnce.h" |
12 | 12 |
13 SkColorSpace::SkColorSpace(GammaNamed gammaNamed, const SkMatrix44& toXYZD50, Na
med named) | 13 SkColorSpace::SkColorSpace(GammaNamed gammaNamed, const SkMatrix44& toXYZD50, Na
med named) |
14 : fGammaNamed(gammaNamed) | 14 : fGammaNamed(gammaNamed) |
15 , fToXYZD50(toXYZD50) | 15 , fToXYZD50(toXYZD50) |
16 , fNamed(named) | 16 , fNamed(named) |
17 {} | 17 {} |
18 | 18 |
19 SkColorSpace_Base::SkColorSpace_Base(GammaNamed gammaNamed, const SkMatrix44& to
XYZD50, Named named) | 19 SkColorSpace_Base::SkColorSpace_Base(GammaNamed gammaNamed, const SkMatrix44& to
XYZD50, Named named) |
20 : INHERITED(gammaNamed, toXYZD50, named) | 20 : INHERITED(gammaNamed, toXYZD50, named) |
21 , fGammas(nullptr) | 21 , fGammas(nullptr) |
22 , fProfileData(nullptr) | 22 , fProfileData(nullptr) |
23 {} | 23 {} |
24 | 24 |
25 SkColorSpace_Base::SkColorSpace_Base(sk_sp<SkColorLookUpTable> colorLUT, GammaNa
med gammaNamed, | 25 SkColorSpace_Base::SkColorSpace_Base(sk_sp<SkColorLookUpTable> colorLUT, sk_sp<S
kGammas> gammas, |
26 sk_sp<SkGammas> gammas, const SkMatrix44& t
oXYZD50, | 26 const SkMatrix44& toXYZD50, sk_sp<SkData> p
rofileData) |
27 sk_sp<SkData> profileData) | 27 : INHERITED(kNonStandard_GammaNamed, toXYZD50, kUnknown_Named) |
28 : INHERITED(gammaNamed, toXYZD50, kUnknown_Named) | |
29 , fColorLUT(std::move(colorLUT)) | 28 , fColorLUT(std::move(colorLUT)) |
30 , fGammas(std::move(gammas)) | 29 , fGammas(std::move(gammas)) |
31 , fProfileData(std::move(profileData)) | 30 , fProfileData(std::move(profileData)) |
32 {} | 31 {} |
33 | 32 |
34 static constexpr float gSRGB_toXYZD50[] { | 33 static constexpr float gSRGB_toXYZD50[] { |
35 0.4358f, 0.2224f, 0.0139f, // * R | 34 0.4358f, 0.2224f, 0.0139f, // * R |
36 0.3853f, 0.7170f, 0.0971f, // * G | 35 0.3853f, 0.7170f, 0.0971f, // * G |
37 0.1430f, 0.0606f, 0.7139f, // * B | 36 0.1430f, 0.0606f, 0.7139f, // * B |
38 }; | 37 }; |
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62 color_space_almost_equal(toXYZD50.getFloat(0, 3), 0.0f) && | 61 color_space_almost_equal(toXYZD50.getFloat(0, 3), 0.0f) && |
63 color_space_almost_equal(toXYZD50.getFloat(1, 3), 0.0f) && | 62 color_space_almost_equal(toXYZD50.getFloat(1, 3), 0.0f) && |
64 color_space_almost_equal(toXYZD50.getFloat(2, 3), 0.0f) && | 63 color_space_almost_equal(toXYZD50.getFloat(2, 3), 0.0f) && |
65 color_space_almost_equal(toXYZD50.getFloat(3, 0), 0.0f) && | 64 color_space_almost_equal(toXYZD50.getFloat(3, 0), 0.0f) && |
66 color_space_almost_equal(toXYZD50.getFloat(3, 1), 0.0f) && | 65 color_space_almost_equal(toXYZD50.getFloat(3, 1), 0.0f) && |
67 color_space_almost_equal(toXYZD50.getFloat(3, 2), 0.0f) && | 66 color_space_almost_equal(toXYZD50.getFloat(3, 2), 0.0f) && |
68 color_space_almost_equal(toXYZD50.getFloat(3, 3), 1.0f); | 67 color_space_almost_equal(toXYZD50.getFloat(3, 3), 1.0f); |
69 } | 68 } |
70 | 69 |
71 sk_sp<SkColorSpace> SkColorSpace_Base::NewRGB(float values[3], const SkMatrix44&
toXYZD50) { | 70 sk_sp<SkColorSpace> SkColorSpace_Base::NewRGB(float values[3], const SkMatrix44&
toXYZD50) { |
72 if (0.0f > values[0] || 0.0f > values[1] || 0.0f > values[2]) { | 71 SkGammaCurve curves[3]; |
73 return nullptr; | 72 set_gamma_value(&curves[0], values[0]); |
74 } | 73 set_gamma_value(&curves[1], values[1]); |
| 74 set_gamma_value(&curves[2], values[2]); |
75 | 75 |
76 GammaNamed gammaNamed = kNonStandard_GammaNamed; | 76 GammaNamed gammaNamed = SkGammas::Named(curves); |
77 if (color_space_almost_equal(2.2f, values[0]) && | |
78 color_space_almost_equal(2.2f, values[1]) && | |
79 color_space_almost_equal(2.2f, values[2])) { | |
80 gammaNamed = k2Dot2Curve_GammaNamed; | |
81 } else if (color_space_almost_equal(1.0f, values[0]) && | |
82 color_space_almost_equal(1.0f, values[1]) && | |
83 color_space_almost_equal(1.0f, values[2])) { | |
84 gammaNamed = kLinear_GammaNamed; | |
85 } | |
86 | |
87 if (kNonStandard_GammaNamed == gammaNamed) { | 77 if (kNonStandard_GammaNamed == gammaNamed) { |
88 sk_sp<SkGammas> gammas = sk_sp<SkGammas>(new SkGammas()); | 78 sk_sp<SkGammas> gammas(new SkGammas(std::move(curves[0]), std::move(curv
es[1]), |
89 gammas->fRedType = SkGammas::Type::kValue_Type; | 79 std::move(curves[2]))); |
90 gammas->fGreenType = SkGammas::Type::kValue_Type; | 80 return sk_sp<SkColorSpace>(new SkColorSpace_Base(nullptr, gammas, toXYZD
50, nullptr)); |
91 gammas->fBlueType = SkGammas::Type::kValue_Type; | |
92 gammas->fRedData.fValue = values[0]; | |
93 gammas->fGreenData.fValue = values[1]; | |
94 gammas->fBlueData.fValue = values[2]; | |
95 return sk_sp<SkColorSpace>(new SkColorSpace_Base(nullptr, kNonStandard_G
ammaNamed, gammas, | |
96 toXYZD50, nullptr)); | |
97 } | 81 } |
98 | 82 |
99 return SkColorSpace_Base::NewRGB(gammaNamed, toXYZD50); | 83 return SkColorSpace_Base::NewRGB(gammaNamed, toXYZD50); |
100 } | 84 } |
101 | 85 |
102 sk_sp<SkColorSpace> SkColorSpace_Base::NewRGB(GammaNamed gammaNamed, const SkMat
rix44& toXYZD50) { | 86 sk_sp<SkColorSpace> SkColorSpace_Base::NewRGB(GammaNamed gammaNamed, const SkMat
rix44& toXYZD50) { |
103 switch (gammaNamed) { | 87 switch (gammaNamed) { |
104 case kSRGB_GammaNamed: | 88 case kSRGB_GammaNamed: |
105 if (xyz_almost_equal(toXYZD50, gSRGB_toXYZD50)) { | 89 if (xyz_almost_equal(toXYZD50, gSRGB_toXYZD50)) { |
106 return SkColorSpace::NewNamed(kSRGB_Named); | 90 return SkColorSpace::NewNamed(kSRGB_Named); |
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297 | 281 |
298 uint32_t profileSize = *((uint32_t*) data); | 282 uint32_t profileSize = *((uint32_t*) data); |
299 data = SkTAddOffset<const void>(data, sizeof(uint32_t)); | 283 data = SkTAddOffset<const void>(data, sizeof(uint32_t)); |
300 length -= sizeof(uint32_t); | 284 length -= sizeof(uint32_t); |
301 if (length < profileSize) { | 285 if (length < profileSize) { |
302 return nullptr; | 286 return nullptr; |
303 } | 287 } |
304 | 288 |
305 return NewICC(data, profileSize); | 289 return NewICC(data, profileSize); |
306 } | 290 } |
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