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mpv/libass/ass_utils.h
eugeni 42871d8220 Move conversions between 16.16, 26.6 fixed point and int, double to separate
functions. Some rounding errors are fixed along the way.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22231 b3059339-0415-0410-9bf9-f77b7e298cf2
2007-02-16 17:49:35 +00:00

56 lines
1.5 KiB
C

// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/*
Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __ASS_UTILS_H__
#define __ASS_UTILS_H__
int mystrtoi(char** p, int base, int* res);
int mystrtou32(char** p, int base, uint32_t* res);
int mystrtod(char** p, double* res);
int strtocolor(char** q, uint32_t* res);
static inline int d6_to_int(int x) {
return (x + 32) >> 6;
}
static inline int d16_to_int(int x) {
return (x + 32768) >> 16;
}
static inline int int_to_d6(int x) {
return x << 6;
}
static inline int int_to_d16(int x) {
return x << 16;
}
static inline int d16_to_d6(int x) {
return (x + 512) >> 10;
}
static inline int d6_to_d16(int x) {
return x << 10;
}
static inline double d6_to_double(int x) {
return x / 64.;
}
static inline int double_to_d6(double x) {
return (int)(x * 64);
}
#endif