diff options
Diffstat (limited to 'core/math/math_funcs.h')
| -rw-r--r-- | core/math/math_funcs.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h index 4e4f566517..8df45255c9 100644 --- a/core/math/math_funcs.h +++ b/core/math/math_funcs.h @@ -159,7 +159,7 @@ public: } ieee754; ieee754.f = p_val; return ((unsigned)(ieee754.u >> 32) & 0x7fffffff) == 0x7ff00000 && - ((unsigned)ieee754.u == 0); + ((unsigned)ieee754.u == 0); #else return isinf(p_val); #endif @@ -266,8 +266,8 @@ public: float s = CLAMP((p_s - p_from) / (p_to - p_from), 0.0f, 1.0f); return s * s * (3.0f - 2.0f * s); } - static _ALWAYS_INLINE_ double move_toward(double p_from, double p_to, double p_delta) { return abs(p_to - p_from) <= p_delta ? p_to : p_from + SGN(p_to - p_from) * p_delta; } - static _ALWAYS_INLINE_ float move_toward(float p_from, float p_to, float p_delta) { return abs(p_to - p_from) <= p_delta ? p_to : p_from + SGN(p_to - p_from) * p_delta; } + static _ALWAYS_INLINE_ double move_toward(double p_from, double p_to, double p_delta) { return abs(p_to - p_from) <= p_delta ? p_to : p_from + SIGN(p_to - p_from) * p_delta; } + static _ALWAYS_INLINE_ float move_toward(float p_from, float p_to, float p_delta) { return abs(p_to - p_from) <= p_delta ? p_to : p_from + SIGN(p_to - p_from) * p_delta; } static _ALWAYS_INLINE_ double linear2db(double p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; } static _ALWAYS_INLINE_ float linear2db(float p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; } @@ -291,6 +291,19 @@ public: return is_zero_approx(range) ? min : value - (range * Math::floor((value - min) / range)); } + static _ALWAYS_INLINE_ float fract(float value) { + return value - floor(value); + } + static _ALWAYS_INLINE_ double fract(double value) { + return value - floor(value); + } + static _ALWAYS_INLINE_ float pingpong(float value, float length) { + return (length != 0.0f) ? abs(fract((value - length) / (length * 2.0f)) * length * 2.0f - length) : 0.0f; + } + static _ALWAYS_INLINE_ double pingpong(double value, double length) { + return (length != 0.0) ? abs(fract((value - length) / (length * 2.0)) * length * 2.0 - length) : 0.0; + } + // double only, as these functions are mainly used by the editor and not performance-critical, static double ease(double p_x, double p_c); static int step_decimals(double p_step); @@ -305,6 +318,7 @@ public: static uint32_t rand(); static _ALWAYS_INLINE_ double randd() { return (double)rand() / (double)Math::RANDOM_32BIT_MAX; } static _ALWAYS_INLINE_ float randf() { return (float)rand() / (float)Math::RANDOM_32BIT_MAX; } + static double randfn(double mean, double deviation); static double random(double from, double to); static float random(float from, float to); @@ -461,7 +475,7 @@ public: mantissa = 0; } hf = (((uint16_t)sign) << 15) | (uint16_t)((0x1F << 10)) | - (uint16_t)(mantissa >> 13); + (uint16_t)(mantissa >> 13); } // check if exponent is <= -15 else if (exp <= 0x38000000) { @@ -474,8 +488,8 @@ public: hf = 0; //denormals do not work for 3D, convert to zero } else { hf = (((uint16_t)sign) << 15) | - (uint16_t)((exp - 0x38000000) >> 13) | - (uint16_t)(mantissa >> 13); + (uint16_t)((exp - 0x38000000) >> 13) | + (uint16_t)(mantissa >> 13); } return hf; |