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/*
 * 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 *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, 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
        ass_msg(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;
}

// Return a boolean value for a string
char parse_bool(char *str)
{
    while (*str == ' ' || *str == '\t')
        str++;
    if (!strncasecmp(str, "yes", 3))
        return 1;
    else if (strtol(str, NULL, 10) > 0)
        return 1;
    return 0;
}

#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