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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 Sk2x_DEFINED | 8 #ifndef Sk2x_DEFINED |
9 #define Sk2x_DEFINED | 9 #define Sk2x_DEFINED |
10 | 10 |
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60 Sk2x& operator -=(const Sk2x& o) { return (*this = *this - o); } | 60 Sk2x& operator -=(const Sk2x& o) { return (*this = *this - o); } |
61 Sk2x& operator *=(const Sk2x& o) { return (*this = *this * o); } | 61 Sk2x& operator *=(const Sk2x& o) { return (*this = *this * o); } |
62 Sk2x& operator /=(const Sk2x& o) { return (*this = *this / o); } | 62 Sk2x& operator /=(const Sk2x& o) { return (*this = *this / o); } |
63 | 63 |
64 Sk2x negate() const { return Sk2x((T)0) - *this; } | 64 Sk2x negate() const { return Sk2x((T)0) - *this; } |
65 Sk2x operator -() const { return this->negate(); } | 65 Sk2x operator -() const { return this->negate(); } |
66 | 66 |
67 Sk2x rsqrt() const; // Approximate 1/this->sqrt(). | 67 Sk2x rsqrt() const; // Approximate 1/this->sqrt(). |
68 Sk2x sqrt() const; // this->multiply(this->rsqrt()) may be faster, but le
ss precise. | 68 Sk2x sqrt() const; // this->multiply(this->rsqrt()) may be faster, but le
ss precise. |
69 | 69 |
| 70 Sk2x invert() const; // 1/this. |
| 71 Sk2x approxInvert() const; // Approximate 1/this, usually faster but less p
recise. |
| 72 |
70 static Sk2x Min(const Sk2x&, const Sk2x&); | 73 static Sk2x Min(const Sk2x&, const Sk2x&); |
71 static Sk2x Max(const Sk2x&, const Sk2x&); | 74 static Sk2x Max(const Sk2x&, const Sk2x&); |
72 | 75 |
73 private: | 76 private: |
74 #define SK2X_PRIVATE 1 | 77 #define SK2X_PRIVATE 1 |
75 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 && !defined(SKNX_NO_SIMD) | 78 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 && !defined(SKNX_NO_SIMD) |
76 #include "../opts/Sk2x_sse.h" | 79 #include "../opts/Sk2x_sse.h" |
77 #elif defined(SK_ARM_HAS_NEON) && !defined(SKNX_NO_SIMD) | 80 #elif defined(SK_ARM_HAS_NEON) && !defined(SKNX_NO_SIMD) |
78 #include "../opts/Sk2x_neon.h" | 81 #include "../opts/Sk2x_neon.h" |
79 #else | 82 #else |
80 #include "../opts/Sk2x_none.h" | 83 #include "../opts/Sk2x_none.h" |
81 #endif | 84 #endif |
82 #undef SK2X_PRIVATE | 85 #undef SK2X_PRIVATE |
83 }; | 86 }; |
84 | 87 |
85 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 && !defined(SKNX_NO_SIMD) | 88 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 && !defined(SKNX_NO_SIMD) |
86 #include "../opts/Sk2x_sse.h" | 89 #include "../opts/Sk2x_sse.h" |
87 #elif defined(SK_ARM_HAS_NEON) && !defined(SKNX_NO_SIMD) | 90 #elif defined(SK_ARM_HAS_NEON) && !defined(SKNX_NO_SIMD) |
88 #include "../opts/Sk2x_neon.h" | 91 #include "../opts/Sk2x_neon.h" |
89 #else | 92 #else |
90 #include "../opts/Sk2x_none.h" | 93 #include "../opts/Sk2x_none.h" |
91 #endif | 94 #endif |
92 | 95 |
93 #endif//Sk2x_DEFINED | 96 #endif//Sk2x_DEFINED |
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