Aegisub/libass/ass_utils.c

125 lines
2.9 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 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.
*/
#include "config.h"
#include <stdlib.h>
#include <inttypes.h>
#include <ft2build.h>
#include FT_GLYPH_H
#include "mputils.h"
#include "ass_utils.h"
int mystrtoi(char** p, int base, int* res)
{
// NOTE: base argument is ignored, but not used in libass anyway
double temp_res;
char* start = *p;
temp_res = strtod(*p, p);
*res = (int) (temp_res + 0.5);
if (*p != start) return 1;
else return 0;
}
int mystrtoll(char** p, int base, long long* res)
{
double temp_res;
char* start = *p;
temp_res = strtod(*p, p);
*res = (long long) (temp_res + 0.5);
if (*p != start) return 1;
else return 0;
}
int mystrtou32(char** p, int base, uint32_t* res)
{
char* start = *p;
*res = strtoll(*p, p, base);
if (*p != start) return 1;
else return 0;
}
int mystrtod(char** p, double* res)
{
char* start = *p;
*res = strtod(*p, p);
if (*p != start) return 1;
else return 0;
}
int strtocolor(char** q, uint32_t* res)
{
uint32_t color = 0;
int result;
char* p = *q;
if (*p == '&') ++p;
else mp_msg(MSGT_ASS, MSGL_DBG2, "suspicious color format: \"%s\"\n", p);
if (*p == 'H' || *p == 'h') {
++p;
result = mystrtou32(&p, 16, &color);
} else {
result = mystrtou32(&p, 0, &color);
}
{
unsigned char* tmp = (unsigned char*)(&color);
unsigned char b;
b = tmp[0]; tmp[0] = tmp[3]; tmp[3] = b;
b = tmp[1]; tmp[1] = tmp[2]; tmp[2] = b;
}
if (*p == '&') ++p;
*q = p;
*res = color;
return result;
}
#if 0
static void sprint_tag(uint32_t tag, char* dst)
{
dst[0] = (tag >> 24) & 0xFF;
dst[1] = (tag >> 16) & 0xFF;
dst[2] = (tag >> 8) & 0xFF;
dst[3] = tag & 0xFF;
dst[4] = 0;
}
void dump_glyph(FT_Glyph g)
{
char tag[5];
int i;
FT_OutlineGlyph og = (FT_OutlineGlyph)g;
FT_Outline* o = &(og->outline);
sprint_tag(g->format, tag);
printf("glyph: %p \n", g);
printf("format: %s \n", tag);
printf("outline: %p \n", o);
printf("contours: %d, points: %d, points ptr: %p \n", o->n_contours, o->n_points, o->points);
for (i = 0; i < o->n_points; ++i) {
printf(" point %f, %f \n", d6_to_double(o->points[i].x), d6_to_double(o->points[i].y));
}
}
#endif