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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #include "SkColor.h" | 10 #include "SkColor.h" |
11 #include "SkColorPriv.h" | 11 #include "SkColorPriv.h" |
12 | 12 |
13 SkPMColor SkPreMultiplyARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b) { | 13 SkPMColor SkPreMultiplyARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b) { |
14 return SkPremultiplyARGBInline(a, r, g, b); | 14 return SkPremultiplyARGBInline(a, r, g, b); |
15 } | 15 } |
16 | 16 |
17 SkPMColor SkPreMultiplyColor(SkColor c) { | 17 SkPMColor SkPreMultiplyColor(SkColor c) { |
18 return SkPremultiplyARGBInline(SkColorGetA(c), SkColorGetR(c), | 18 return SkPremultiplyARGBInline(SkColorGetA(c), SkColorGetR(c), |
19 SkColorGetG(c), SkColorGetB(c)); | 19 SkColorGetG(c), SkColorGetB(c)); |
20 } | 20 } |
21 | 21 |
| 22 SkPMColor SkPreMultiplyUnPMColor(SkUnPMColor c) { |
| 23 U8CPU a = SkGetPackedA32(c); |
| 24 U8CPU r = SkGetPackedR32(c); |
| 25 U8CPU g = SkGetPackedG32(c); |
| 26 U8CPU b = SkGetPackedB32(c); |
| 27 return SkPreMultiplyARGB(a, r, g, b); |
| 28 } |
| 29 |
22 /////////////////////////////////////////////////////////////////////////////// | 30 /////////////////////////////////////////////////////////////////////////////// |
23 | 31 |
24 static inline SkScalar ByteToScalar(U8CPU x) { | 32 static inline SkScalar ByteToScalar(U8CPU x) { |
25 SkASSERT(x <= 255); | 33 SkASSERT(x <= 255); |
26 return SkIntToScalar(x) / 255; | 34 return SkIntToScalar(x) / 255; |
27 } | 35 } |
28 | 36 |
29 static inline SkScalar ByteDivToScalar(int numer, U8CPU denom) { | 37 static inline SkScalar ByteDivToScalar(int numer, U8CPU denom) { |
30 // cast to keep the answer signed | 38 // cast to keep the answer signed |
31 return SkIntToScalar(numer) / (int)denom; | 39 return SkIntToScalar(numer) / (int)denom; |
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104 switch (hx >> 16) { | 112 switch (hx >> 16) { |
105 case 0: r = v; g = t; b = p; break; | 113 case 0: r = v; g = t; b = p; break; |
106 case 1: r = q; g = v; b = p; break; | 114 case 1: r = q; g = v; b = p; break; |
107 case 2: r = p; g = v; b = t; break; | 115 case 2: r = p; g = v; b = t; break; |
108 case 3: r = p; g = q; b = v; break; | 116 case 3: r = p; g = q; b = v; break; |
109 case 4: r = t; g = p; b = v; break; | 117 case 4: r = t; g = p; b = v; break; |
110 default: r = v; g = p; b = q; break; | 118 default: r = v; g = p; b = q; break; |
111 } | 119 } |
112 return SkColorSetARGB(a, r, g, b); | 120 return SkColorSetARGB(a, r, g, b); |
113 } | 121 } |
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