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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
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 "SkColor.h" | 8 #include "SkColor.h" |
9 #include "SkColorPriv.h" | 9 #include "SkColorPriv.h" |
10 #include "SkFixed.h" | 10 #include "SkFixed.h" |
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93 switch (hx >> 16) { | 93 switch (hx >> 16) { |
94 case 0: r = v; g = t; b = p; break; | 94 case 0: r = v; g = t; b = p; break; |
95 case 1: r = q; g = v; b = p; break; | 95 case 1: r = q; g = v; b = p; break; |
96 case 2: r = p; g = v; b = t; break; | 96 case 2: r = p; g = v; b = t; break; |
97 case 3: r = p; g = q; b = v; break; | 97 case 3: r = p; g = q; b = v; break; |
98 case 4: r = t; g = p; b = v; break; | 98 case 4: r = t; g = p; b = v; break; |
99 default: r = v; g = p; b = q; break; | 99 default: r = v; g = p; b = q; break; |
100 } | 100 } |
101 return SkColorSetARGB(a, r, g, b); | 101 return SkColorSetARGB(a, r, g, b); |
102 } | 102 } |
103 | |
104 ////////////////////////////////////////////////////////////////////////////////
/////////////////// | |
105 #include "SkNx.h" | |
106 | |
107 SkColor4f SkColor4f::Pin(float a, float r, float g, float b) { | |
108 SkColor4f c4; | |
109 Sk4f::Min(Sk4f::Max(Sk4f(a, r, g, b), Sk4f(0)), Sk4f(1)).store(c4.vec()); | |
110 return c4; | |
111 } | |
112 | |
113 SkColor4f SkColor4f::FromColor(SkColor c) { | |
114 Sk4f value = SkNx_shuffle<3,2,1,0>(SkNx_cast<float>(Sk4b::Load((const uint8_
t*)&c))); | |
115 SkColor4f c4; | |
116 (value * Sk4f(1.0f / 255)).store(c4.vec()); | |
117 return c4; | |
118 } | |
119 | |
120 SkPM4f SkColor4f::premul() const { | |
121 auto src = Sk4f::Load(this->pin().vec()); | |
122 float srcAlpha = src.kth<0>(); // need the pinned version of our alpha | |
123 src = src * Sk4f(1, srcAlpha, srcAlpha, srcAlpha); | |
124 | |
125 #ifdef SK_PMCOLOR_IS_BGRA | |
126 // ARGB -> BGRA | |
127 Sk4f dst = SkNx_shuffle<3,2,1,0>(src); | |
128 #else | |
129 // ARGB -> RGBA | |
130 Sk4f dst = SkNx_shuffle<1,2,3,0>(src); | |
131 #endif | |
132 | |
133 SkPM4f pm4; | |
134 dst.store(pm4.fVec); | |
135 return pm4; | |
136 } | |
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