/* Auto-rotate, if rotate_image is set.
*/
static VipsImage *
read_jpeg_rotate( VipsObject *process, VipsImage *im )
{
VipsImage **t = (VipsImage **) vips_object_local_array( process, 2 );
VipsAngle angle = vips_autorot_get_angle( im );
if( angle != VIPS_ANGLE_D0 ) {
/* Need to copy to memory or disc, we have to stay seq.
*/
const guint64 image_size = VIPS_IMAGE_SIZEOF_IMAGE( im );
const guint64 disc_threshold = vips_get_disc_threshold();
if( image_size > disc_threshold )
t[0] = vips_image_new_temp_file( "%s.v" );
else
t[0] = vips_image_new_memory();
if( vips_image_write( im, t[0] ) ||
vips_rot( t[0], &t[1], angle, NULL ) )
return( NULL );
im = t[1];
(void) vips_image_remove( im, ORIENTATION );
}
return( im );
}
/* Auto-rotate, if rotate_image is set.
*/
static VipsImage *
thumbnail_rotate( VipsObject *process, VipsImage *im )
{
VipsImage **t = (VipsImage **) vips_object_local_array( process, 1 );
if( rotate_image ) {
if( vips_rot( im, &t[0], get_angle( im ), NULL ) )
return( NULL );
im = t[0];
(void) vips_image_remove( im, ORIENTATION );
}
return( im );
}
/* Auto-rotate, if rotate_image is set.
*/
static VipsImage *
thumbnail_rotate( VipsObject *process, VipsImage *im )
{
VipsImage **t = (VipsImage **) vips_object_local_array( process, 2 );
VipsAngle angle = vips_autorot_get_angle( im );
if( rotate_image &&
angle != VIPS_ANGLE_D0 ) {
vips_info( "vipsthumbnail", "rotating by %s",
vips_enum_nick( VIPS_TYPE_ANGLE, angle ) );
/* Need to copy to memory, we have to stay seq.
*/
t[0] = vips_image_new_memory();
if( vips_image_write( im, t[0] ) ||
vips_rot( t[0], &t[1], angle, NULL ) )
return( NULL );
im = t[1];
vips_autorot_remove_angle( im );
}
return( im );
}
