… | |
… | |
28 | |
28 | |
29 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
29 | template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
30 | template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; } |
30 | template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; } |
31 | |
31 | |
32 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
32 | template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
|
|
33 | |
|
|
34 | // linear interpolation |
|
|
35 | template<typename T, typename U, typename P> |
|
|
36 | static inline |
|
|
37 | T lerp (T a, U b, P p) |
|
|
38 | { |
|
|
39 | return (int(a) * int(p) + int(b) * int(100 - p)) / 100; |
|
|
40 | } |
33 | |
41 | |
34 | // in range including end |
42 | // in range including end |
35 | #define IN_RANGE_INC(val,beg,end) \ |
43 | #define IN_RANGE_INC(val,beg,end) \ |
36 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
44 | ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
37 | |
45 | |