static void
draw_line(const struct rich_text *rich, struct pack_label * l, struct srt *srt, const struct sprite_trans *arg,
uint32_t color, int cy, int w, int start, int end, int *pre_char_cnt, float space_scale) {
const char *str = rich->text;
float cx;
int j;
int size = l->size;
if (l->auto_scale != 0 && w > l->width)
{
float scale = l->width * 1.0f / w;
size = scale * size;
cy = cy + (l->size - size) / 2;
w = l->width;
}
switch (l->align) {
case LABEL_ALIGN_LEFT:
cx = 0.0;
break;
case LABEL_ALIGN_RIGHT:
cx = l->width - w;
break;
case LABEL_ALIGN_CENTER:
cx = (l->width - w)/2;
break;
}
int char_cnt = 0;
for (j=start; j<end;) {
int unicode;
char_cnt++;
int len = unicode_len(str[j]);
unicode = get_unicode(str+j, len);
j+=len;
if(unicode != '\n') {
uint32_t field_color = get_rich_field_color(rich, *pre_char_cnt+char_cnt);
if (field_color == 0) {
field_color = color;
} else {
field_color = color_mul(field_color, color | 0xffffff);
}
cx+=(draw_utf8(unicode, cx, cy, size, srt, field_color, arg, l->edge) + l->space_w)*space_scale;
}
}
*pre_char_cnt += char_cnt;
}
int wcharlen(wchar_t c)
{
char *bin;
int i;
int j;
bin = get_unicode(c);
i = 0;
j = 0;
while (bin[i])
{
i += 8;
j++;
}
return (j);
}
static void
draw_line(const char *str, struct pack_label * l, struct srt *srt, const struct sprite_trans *arg,
uint32_t color, int cy, int w, int start, int end) {
int cx, j;
int size = l->size;
if (l->auto_scale != 0 && w > l->width)
{
float scale = l->width * 1.0f / w;
size = scale * size;
cy = cy + (l->size - size) / 2;
w = l->width;
}
switch (l->align) {
case LABEL_ALIGN_LEFT:
cx = 0;
break;
case LABEL_ALIGN_RIGHT:
cx = l->width - w;
break;
case LABEL_ALIGN_CENTER:
cx = (l->width - w)/2;
break;
}
for (j=start; j<end;) {
int unicode;
uint8_t c = (uint8_t)str[j];
if ((c&0x80) == 0) {
unicode = get_unicode(str+j,1);
j+=1;
} else if ((c&0xe0) == 0xc0) {
unicode = get_unicode(str+j,2);
j+=2;
} else if ((c&0xf0) == 0xe0) {
unicode = get_unicode(str+j,3);
j+=3;
} else if ((c&0xf8) == 0xf0) {
unicode = get_unicode(str+j,4);
j+=4;
} else if ((c&0xfc) == 0xf8) {
unicode = get_unicode(str+j,5);
j+=5;
} else {
unicode = get_unicode(str+j,6);
j+=6;
}
if(unicode != '\n')
cx+=draw_utf8(unicode, cx, cy, size, srt, color, arg) + l->space_w;
}
}
int wstrlen(wchar_t *s)
{
char *bin;
int i;
int j;
int k;
i = 0;
k = 0;
while (s[i])
{
j = 0;
bin = get_unicode(s[i]);
while (bin[j])
{
j += 8;
k++;
}
i++;
}
return (k);
}
/*
* Returns 1 on memory error condition
*/
int
str_convert( str *s,
int charsetin, int latexin, int utf8in, int xmlin,
int charsetout, int latexout, int utf8out, int xmlout )
{
unsigned int pos = 0;
unsigned int ch;
str ns;
int ok = 1;
if ( !s || s->len==0 ) return ok;
/* Ensure that string is internally allocated.
* This fixes NULL pointer derefernce in CVE-2018-10775 in bibutils
* as a string with a valid data pointer is potentially replaced
* by a string without a valid data pointer due to it being invalid
* unicode.
* This probably also fixes CVE-2018-10773 and CVE-2018-10774 which
* are NULL dereferences also likely due to a fuzzer, but without
* test cases in the report, I can't be completely sure.
*/
str_initstrc( &ns, "" );
if ( charsetin==CHARSET_UNKNOWN ) charsetin = CHARSET_DEFAULT;
if ( charsetout==CHARSET_UNKNOWN ) charsetout = CHARSET_DEFAULT;
while ( s->data[pos] ) {
ch = get_unicode( s, &pos, charsetin, latexin, utf8in, xmlin );
ok = write_unicode( &ns, ch, charsetout, latexout, utf8out, xmlout );
if ( !ok ) goto out;
}
str_swapstrings( s, &ns );
out:
str_free( &ns );
return ok;
}
