/*
 * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
 *
 * This file is part of libass.
 *
 * libass 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.
 *
 * libass 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 libass; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef LIBASS_UTILS_H
#define LIBASS_UTILS_H

#include <stdio.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#ifdef CONFIG_ENCA
#include <enca.h>
#endif

#include "help_mp.h"

#define MSGL_FATAL 0
#define MSGL_ERR 1
#define MSGL_WARN 2
#define MSGL_INFO 4
#define MSGL_V 6
#define MSGL_DBG2 7

#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))

int mystrtoi(char **p, int *res);
int mystrtoll(char **p, long long *res);
int mystrtou32(char **p, int base, uint32_t *res);
int mystrtod(char **p, double *res);
int strtocolor(char **q, uint32_t *res);
char parse_bool(char *str);
unsigned ass_utf8_get_char(char **str);
void ass_msg(int lvl, char *fmt, ...);
void ass_gauss_blur(unsigned char *buffer, unsigned short *tmp2,
                    int width, int height, int stride, int *m2,
                    int r, int mwidth);
void *ass_guess_buffer_cp(unsigned char *buffer, int buflen,
                          char *preferred_language, char *fallback);

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);
}
static inline double d16_to_double(int x)
{
    return ((double) x) / 0x10000;
}
static inline int double_to_d16(double x)
{
    return (int) (x * 0x10000);
}

#endif                          /* LIBASS_UTILS_H */