stuff

man/Makefile.am

@@ -531,7 +531,6 @@ man_MANS = \
 	im_vips2ppm.3 \
 	im_vips2tiff.3 \
 	im_warn.3 \
-	im_wbuffer.3 \
 	im_wrapmany.3 \
 	im_wrapone.3 \
 	im_write_dmask.3 \

man/im_wbuffer.3

@@ -1,60 +0,0 @@
-.TH IM_WBUFFER 3 "2 November 2007"
-.SH NAME
-im_wbuffer \- write an image with a background thread
-.SH SYNOPSIS
-.B #include <vips/vips.h>
-
-typedef int (*im_wbuffer_fn)( REGION *region, Rect *area, void *a, void *b );
-
-int im_wbuffer( im_threadgroup_t *tg, 
-.br
-  im_wbuffer_fn write_fn, void *a, void *b );
-
-.SH DESCRIPTION
-.B im_wbuffer(3)
-uses the 
-.B im_threadgroup_t
-to loop down the image, calculating sets of scanlines. The number of scanlines
-calculated in one group varies with the image's demand style, but might
-typically be 64 lines.
-
-As each set of scanlines is completed, a background thread calls the supplied
-.B im_wbuffer_fn
-to write those lines to the output. This callback might use the JPEG library,
-for example, to compress the pixels before writing to disc. By writing in the
-background, the threads computing the image pixels are not interrupted and
-image compression may be overlapped with image calculation. Hopefully this
-will produce a speed improvement.
-
-.SH EXAMPLE
-
-  static int
-  write_vips( REGION *region, Rect *area, void *a, void *b )
-  {
-    size_t nwritten, count;
-    void *buf;
-  
-    count = region->bpl * area->height;
-    buf = IM_REGION_ADDR( region, 0, area->top );
-    do {
-      nwritten = write( region->im->fd, buf, count ); 
-      if( nwritten == (size_t) -1 ) 
-        return( errno );
-  
-      buf = (void *) ((char *) buf + nwritten);
-      count -= nwritten;
-    } while( count > 0 );
-  
-    return( 0 );
-  }
-
-    if( !(tg = im_threadgroup_create( im )) ) {
-
-.SH RETURN VALUE
-The function returns 0 on success and non-zero on error.
-.SH SEE ALSO
-im_threadgroup_create(3)
-.SH COPYRIGHT
-Imperial College, 2007
-.SH AUTHOR
-J. Cupitt \- 2/11/07