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start hacking

This commit is contained in:
John Cupitt 2018-07-03 10:01:14 +01:00
parent 039c716f63
commit 1cc7dd6af7
1 changed files with 76 additions and 29 deletions
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105
libvips/foreign/exif.c
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@ -877,45 +877,92 @@ vips_exif_from_s( ExifData *ed, ExifEntry *entry, const char *value )
unsigned long i;
const char *p;
if( entry->format != EXIF_FORMAT_SHORT &&
entry->format != EXIF_FORMAT_SSHORT &&
entry->format != EXIF_FORMAT_LONG &&
entry->format != EXIF_FORMAT_SLONG &&
entry->format != EXIF_FORMAT_RATIONAL &&
entry->format != EXIF_FORMAT_SRATIONAL )
return;
if( entry->components >= 10 )
return;
if( entry->format == EXIF_FORMAT_SHORT ||
entry->format == EXIF_FORMAT_SSHORT ||
entry->format == EXIF_FORMAT_LONG ||
entry->format == EXIF_FORMAT_SLONG ) {
if( entry->components >= 10 )
return;
/* Skip any leading spaces.
*/
p = value;
while( *p == ' ' )
p += 1;
/* Skip any leading spaces.
*/
p = value;
while( *p == ' ' )
p += 1;
for( i = 0; i < entry->components; i++ ) {
if( entry->format == EXIF_FORMAT_SHORT ||
entry->format == EXIF_FORMAT_SSHORT ||
entry->format == EXIF_FORMAT_LONG ||
entry->format == EXIF_FORMAT_SLONG ) {
for( i = 0; i < entry->components; i++ ) {
int value = atof( p );
vips_exif_set_int( ed, entry, i, &value );
}
else if( entry->format == EXIF_FORMAT_RATIONAL ||
entry->format == EXIF_FORMAT_SRATIONAL )
vips_exif_set_rational( ed, entry, i, (void *) p );
/* Skip to the next set of spaces, then to the beginning of
* the next item.
/* Skip to the next set of spaces, then to the
* beginning of the next item.
*/
while( *p && *p != ' ' )
p += 1;
while( *p == ' ' )
p += 1;
if( !*p )
break;
}
}
else if( entry->format == EXIF_FORMAT_RATIONAL ||
entry->format == EXIF_FORMAT_SRATIONAL ) {
if( entry->components >= 10 )
return;
/* Skip any leading spaces.
*/
while( *p && *p != ' ' )
p += 1;
p = value;
while( *p == ' ' )
p += 1;
if( !*p )
break;
for( i = 0; i < entry->components; i++ ) {
vips_exif_set_rational( ed, entry, i, (void *) p );
/* Skip to the next set of spaces, then to the
* beginning of the next item.
*/
while( *p && *p != ' ' )
p += 1;
while( *p == ' ' )
p += 1;
if( !*p )
break;
}
}
else if( entry->format == EXIF_FORMAT_ASCII ) {
int len;
char *q;
/* A copy of value which we may have to free.
*/
q = NULL;
/* The final " (xx, ASCII, yy, zz)" part of the string was
* added by us in _to_s(), we must remove it before setting
* the string back again.
*
* It may not be there if the user has changed the string.
*
* Leave p as poointing to the trimmed string.
*/
len = strlen( value );
if( len > 0 &&
value[len - 1] == ')' &&
(p = strrchr( value, '(' )) &&
p - value > 0 &&
p[-1] == ' ' ) {
q = g_strdup( value );
q[p - value - 1] = '\0';
p = q;
}
else
p = value;
for( p = value + strlen( value ) - 1; p >= value; p-- )
}
}
static void