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21 | |
21 | |
22 | #ifndef UTIL_H__ |
22 | #ifndef UTIL_H__ |
23 | #define UTIL_H__ |
23 | #define UTIL_H__ |
24 | |
24 | |
25 | //#define PREFER_MALLOC |
25 | //#define PREFER_MALLOC |
26 | //#define DEBUG_SALLOC |
26 | #define DEBUG_SALLOC |
27 | |
27 | |
28 | #if __GNUC__ >= 3 |
28 | #if __GNUC__ >= 3 |
29 | # define is_constant(c) __builtin_constant_p (c) |
29 | # define is_constant(c) __builtin_constant_p (c) |
30 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
30 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
31 | # define prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
31 | # define prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
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89 | template<typename T, typename U> static inline T min (T a, U b) { return (U)a < b ? (U)a : b; } |
89 | template<typename T, typename U> static inline T min (T a, U b) { return (U)a < b ? (U)a : b; } |
90 | template<typename T, typename U> static inline T max (T a, U b) { return (U)a > b ? (U)a : b; } |
90 | template<typename T, typename U> static inline T max (T a, U b) { return (U)a > b ? (U)a : b; } |
91 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; } |
91 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; } |
92 | |
92 | |
93 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
93 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
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94 | |
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95 | template<typename T, typename U, typename V> static inline T min (T a, U b, V c) { return min (a, min (b, c)); } |
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96 | template<typename T, typename U, typename V> static inline T max (T a, U b, V c) { return max (a, max (b, c)); } |
94 | |
97 | |
95 | template<typename T> |
98 | template<typename T> |
96 | static inline T |
99 | static inline T |
97 | lerp (T val, T min_in, T max_in, T min_out, T max_out) |
100 | lerp (T val, T min_in, T max_in, T min_out, T max_out) |
98 | { |
101 | { |