From e420752e82f8c1aad421d3928bda53841e975a0e Mon Sep 17 00:00:00 2001 From: Chris Robinson Date: Sat, 28 Apr 2018 18:52:40 -0700 Subject: Fix a comment about a float's mantissa --- Alc/ALu.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Alc/ALu.c b/Alc/ALu.c index d6b15183..92483aee 100644 --- a/Alc/ALu.c +++ b/Alc/ALu.c @@ -1679,9 +1679,10 @@ static inline ALfloat Conv_ALfloat(ALfloat val) { return val; } static inline ALint Conv_ALint(ALfloat val) { - /* Floats only have a 24-bit mantissa, so [-16777216, +16777216] is the max - * integer range normalized floats can be safely converted to (a bit of the - * exponent helps out, effectively giving 25 bits). + /* Floats have a 23-bit mantissa. A bit of the exponent helps out along + * with the sign bit, giving 25 bits. So [-16777216, +16777216] is the max + * integer range normalized floats can be converted to before losing + * precision. */ return fastf2i(clampf(val*16777216.0f, -16777216.0f, 16777215.0f))<<7; } -- cgit v1.2.3