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better error message from getpoint

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This commit is contained in:
John Cupitt 2015-01-05 13:37:27 +00:00
parent ed049b4bf1
commit 3ceec6682f
1 changed files with 10 additions and 1 deletions
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11
libvips/arithmetic/getpoint.c
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@ -96,9 +96,18 @@ vips_getpoint_build( VipsObject *object )
if( VIPS_OBJECT_CLASS( vips_getpoint_parent_class )->build( object ) ) if( VIPS_OBJECT_CLASS( vips_getpoint_parent_class )->build( object ) )
return( -1 ); return( -1 );
/* <0 ruled out already.
*/
if( getpoint->x >= getpoint->in->Xsize ||
getpoint->y >= getpoint->in->Ysize ) {
vips_error( class->nickname,
"%s", _( "coordinates out of range" ) );
return( -1 );
}
if( vips_check_coding_known( class->nickname, getpoint->in ) || if( vips_check_coding_known( class->nickname, getpoint->in ) ||
!(region = vips_region_new( getpoint->in )) ) !(region = vips_region_new( getpoint->in )) )
return( -1 ); return( -1 );
area.left = getpoint->x; area.left = getpoint->x;
area.top = getpoint->y; area.top = getpoint->y;