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BLI: move safe math functions to separate header

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This commit is contained in:
Jacques Lucke
2020-07-16 11:28:31 +02:00
parent f6f93b5b12
commit d897228682
8 changed files with 170 additions and 62 deletions
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25
source/blender/blenlib/intern/math_base_inline.c
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@@ -70,13 +70,6 @@ MINLINE float pow7f(float x)
{
return pow2f(pow3f(x)) * x;
}
MINLINE float safe_powf(float base, float exponent)
{
if (UNLIKELY(base < 0.0f && exponent != (int)exponent)) {
return 0.0f;
}
return powf(base, exponent);
}
MINLINE float sqrt3f(float f)
{
@@ -348,24 +341,6 @@ MINLINE signed char round_db_to_char_clamp(double a){
#undef _round_clamp_fl_impl
#undef _round_clamp_db_impl
MINLINE float safe_divide(float a, float b)
{
return (b != 0.0f) ? a / b : 0.0f;
}
MINLINE float safe_modf(float a, float b)
{
return (b != 0.0f) ? fmodf(a, b) : 0.0f;
}
MINLINE float safe_logf(float a, float base)
{
if (UNLIKELY(a <= 0.0f || base <= 0.0f)) {
return 0.0f;
}
return safe_divide(logf(a), logf(base));
}
/* integer division that rounds 0.5 up, particularly useful for color blending
* with integers, to avoid gradual darkening when rounding down */
MINLINE int divide_round_i(int a, int b)