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im_*bandjoin() work with images of varying formats

This commit is contained in:
John Cupitt 2010-01-27 10:57:45 +00:00
parent f0baf6e108
commit 2db0c87549
3 changed files with 18 additions and 7 deletions
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4
ChangeLog
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@ -24,7 +24,9 @@
- flood_blob could loop if start point == ink
- added im_meta_remove()
- added remove profile option to vipsthumbnail
- added vips_bandfmt_iscomplex() and friends, im_iscomplex() deprecated
- added vips_bandfmt_iscomplex() and friends, im_iscomplex() and friends
deprecated
- im_bandjoin()/im_gbandjoin() work with images of varying formats
26/11/09 started 7.20.3
- updated en_GB.po translation

20
libvips/conversion/im_gbandjoin.c
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@ -18,6 +18,8 @@
* - gtk-doc
* - im_bandjoin() just calls this
* - works for RAD coding too
* 27/1/10
* - formatalike inputs
*/
/*
@ -83,12 +85,18 @@ join_new( IMAGE *out, IMAGE **in, int nim )
!(join->is = IM_ARRAY( out, nim, int )) )
return( NULL );
/* Remember to NULL-terminate.
/* Cast inputs up to a common format.
*/
if( im_open_local_array( out, join->in, nim, "im_gbandjoin", "p" ) ||
im__formatalike_vec( in, join->in, nim ) )
return( -1 );
for( i = 0; i < nim; i++ )
join->is[i] = IM_IMAGE_SIZEOF_PEL( join->in[i] );
/* Remember to NULL-terminate. We pass ->in[] to
* im_demand_hint_array() and friends later.
*/
for( i = 0; i < nim; i++ ) {
join->in[i] = in[i];
join->is[i] = IM_IMAGE_SIZEOF_PEL( in[i] );
}
join->in[nim] = NULL;
return( join );
@ -222,7 +230,7 @@ im_gbandjoin( IMAGE **in, IMAGE *out, int nim )
*
* Join two images bandwise.
* If the two images
* have n and m bands respectively, then the output image will have n+m
* have n and m bands respectively, then the output image will have n + m
* bands, with the first n coming from the first image and the last m
* from the second.
*

1
libvips/include/vips/internal.h
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@ -147,6 +147,7 @@ void im__buffer_init( void );
int im__bandup( IMAGE *in, IMAGE *out, int n );
int im__bandalike( IMAGE *in1, IMAGE *in2, IMAGE *out1, IMAGE *out2 );
int im__formatalike_vec( IMAGE **in, IMAGE **out, int n );
int im__formatalike( IMAGE *in1, IMAGE *in2, IMAGE *out1, IMAGE *out2 );
int im__arith_binary( const char *name,
IMAGE *in1, IMAGE *in2, IMAGE *out,