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| 1 /* | 1 /* |
| 2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 SkMathPriv_DEFINED | 8 #ifndef SkMathPriv_DEFINED |
| 9 #define SkMathPriv_DEFINED | 9 #define SkMathPriv_DEFINED |
| 10 | 10 |
| (...skipping 64 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 75 */ | 75 */ |
| 76 static inline unsigned SkDiv255Round(unsigned prod) { | 76 static inline unsigned SkDiv255Round(unsigned prod) { |
| 77 prod += 128; | 77 prod += 128; |
| 78 return (prod + (prod >> 8)) >> 8; | 78 return (prod + (prod >> 8)) >> 8; |
| 79 } | 79 } |
| 80 | 80 |
| 81 static inline float SkPinToUnitFloat(float x) { | 81 static inline float SkPinToUnitFloat(float x) { |
| 82 return SkTMin(SkTMax(x, 0.0f), 1.0f); | 82 return SkTMin(SkTMax(x, 0.0f), 1.0f); |
| 83 } | 83 } |
| 84 | 84 |
| 85 /** |
| 86 * Swap byte order of a 4-byte value, e.g. 0xaarrggbb -> 0xbbggrraa. |
| 87 */ |
| 88 #if defined(_MSC_VER) |
| 89 #include <intrin.h> |
| 90 static inline uint32_t SkBSwap32(uint32_t v) { return _byteswap_ulong(v); } |
| 91 #else |
| 92 static inline uint32_t SkBSwap32(uint32_t v) { return __builtin_bswap32(v);
} |
| 85 #endif | 93 #endif |
| 94 |
| 95 #endif |
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