fix transparency detection in merge

a typo meant we were just testing the first band for zero, not all three thanks Haida!
2017-08-02 10:41:10 +01:00 · 2017-08-02 10:41:10 +01:00 · 58f9757467
commit 58f9757467
parent a3b226aa9b
3 changed files with 3 additions and 2 deletions
--- a/1
+++ b/1
@ -1,4 +1,5 @@
 2/8/17 started 8.5.8
+- fix transparency detection in merge, thanks Haida

 9/6/17 started 8.5.7
 - better smartcrop
--- a/libvips/mosaicing/im_lrmerge.c
+++ b/libvips/mosaicing/im_lrmerge.c
@ -392,7 +392,7 @@ make_firstlast( MergeInfo *inf, Overlapping *ovlap, Rect *oreg )
 	int ii; \
 	\
 	for( ii = 0; ii < cb; ii++ ) \
-		if( tt[i] ) \
+		if( tt[ii] ) \
 			break; \
 	if( ii == cb )  \
 		(RESULT) = 1; \
--- a/libvips/mosaicing/im_tbmerge.c
+++ b/libvips/mosaicing/im_tbmerge.c
@ -335,7 +335,7 @@ make_firstlast( MergeInfo *inf, Overlapping *ovlap, Rect *oreg )
 	int ii; \
 	\
 	for( ii = 0; ii < cb; ii++ ) \
-		if( tt[i] ) \
+		if( tt[ii] ) \
 			break; \
 	if( ii == cb )  \
 		(RESULT) = 1; \