mirror of https://github.com/odrling/Aegisub
146 lines
3.6 KiB
C
146 lines
3.6 KiB
C
/*
|
|
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
|
*
|
|
* This file is part of libass.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#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 "ass.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))
|
|
#define FFMINMAX(c,a,b) FFMIN(FFMAX(c, a), b)
|
|
|
|
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(ASS_Library *library, char **q, uint32_t *res, int hex);
|
|
char parse_bool(char *str);
|
|
unsigned ass_utf8_get_char(char **str);
|
|
void ass_msg(ASS_Library *priv, int lvl, char *fmt, ...);
|
|
#ifdef CONFIG_ENCA
|
|
void *ass_guess_buffer_cp(ASS_Library *library, unsigned char *buffer,
|
|
int buflen, char *preferred_language,
|
|
char *fallback);
|
|
#endif
|
|
|
|
/* defined in ass_strtod.c */
|
|
double ass_strtod(const char *string, char **endPtr);
|
|
|
|
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);
|
|
}
|
|
static inline double d22_to_double(int x)
|
|
{
|
|
return ((double) x) / 0x400000;
|
|
}
|
|
static inline int double_to_d22(double x)
|
|
{
|
|
return (int) (x * 0x400000);
|
|
}
|
|
|
|
// Calculate cache key for a rotational angle in degrees
|
|
static inline int rot_key(double a)
|
|
{
|
|
const int m = double_to_d22(360.0);
|
|
return double_to_d22(a) % m;
|
|
}
|
|
|
|
#define FNV1_32A_INIT (unsigned)0x811c9dc5
|
|
|
|
static inline unsigned fnv_32a_buf(void *buf, size_t len, unsigned hval)
|
|
{
|
|
unsigned char *bp = buf;
|
|
unsigned char *be = bp + len;
|
|
while (bp < be) {
|
|
hval ^= (unsigned) *bp++;
|
|
hval +=
|
|
(hval << 1) + (hval << 4) + (hval << 7) + (hval << 8) +
|
|
(hval << 24);
|
|
}
|
|
return hval;
|
|
}
|
|
static inline unsigned fnv_32a_str(char *str, unsigned hval)
|
|
{
|
|
unsigned char *s = (unsigned char *) str;
|
|
while (*s) {
|
|
hval ^= (unsigned) *s++;
|
|
hval +=
|
|
(hval << 1) + (hval << 4) + (hval << 7) + (hval << 8) +
|
|
(hval << 24);
|
|
}
|
|
return hval;
|
|
}
|
|
|
|
#endif /* LIBASS_UTILS_H */
|