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minor patch from David Hodson <hodsond@ozemail.com.au> to fix off-by-one 

2000-10-21  Austin Donnelly  <austin@gimp.org>

	* plug-ins/common/nlfilt.c: minor patch from David Hodson
	    <hodsond@ozemail.com.au> to fix off-by-one error in previous fix.

    	* AUTHORS
	* app/authors.h
	* tools/authorsgen/contributors: Add the prolific David Hodson
	    to the authors list.
This commit is contained in:
Austin Donnelly 2000-10-21 13:15:55 +00:00 committed by Austin Donnelly
parent 29e26b10e5
commit d37667433d
5 changed files with 22 additions and 2 deletions
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1
AUTHORS
View File

@ -71,6 +71,7 @@ Henrik Hansen
Ville Hautamaki
James Henstridge
Eric Hernes
David Hodson
Christoph Hoegl
Wolfgang Hofer
Jan Hubicka

10
ChangeLog
View File

@ -1,3 +1,13 @@
2000-10-21 Austin Donnelly <austin@gimp.org>
* plug-ins/common/nlfilt.c: minor patch from David Hodson
<hodsond@ozemail.com.au> to fix off-by-one error in previous fix.
* AUTHORS
* app/authors.h
* tools/authorsgen/contributors: Add the prolific David Hodson
to the authors list.
2000-10-19 Seth Burgess <sjburges@gimp.org>
* plug-ins/common/xbm.c : oops, should have compiled it before

1
app/authors.h
View File

@ -66,6 +66,7 @@ static gchar *authors[] =
#endif
"James Henstridge",
"Eric Hernes",
"David Hodson",
"Christoph Hoegl",
"Wolfgang Hofer",
"Jan Hubicka",

11
plug-ins/common/nlfilt.c
View File

@ -264,7 +264,7 @@ pluginCore (struct piArgs *argp)
gimp_pixel_rgn_init (&srcPr, drw, 0, 0, width, height, FALSE, FALSE);
gimp_pixel_rgn_init (&dstPr, drw, 0, 0, width, height, TRUE, TRUE);
/* source buffer gives one pixel buffer around current row */
/* source buffer gives one pixel margin all around destination buffer */
srcbuf = g_new0 (guchar, exrowsize * 3);
dstbuf = g_new0 (guchar, rowsize);
@ -278,9 +278,11 @@ pluginCore (struct piArgs *argp)
/* first row */
gimp_pixel_rgn_get_row (&srcPr, thisrow, 0, 0, width);
/* copy thisrow[0] to thisrow[-1], thisrow[width-1] to thisrow[width] */
memcpy (thisrow - Bpp, thisrow, Bpp);
memcpy (thisrow + rowsize, thisrow + rowsize - Bpp, Bpp);
memcpy (lastrow, thisrow, exrowsize);
/* copy whole thisrow to lastrow */
memcpy (lastrow - Bpp, thisrow - Bpp, exrowsize);
for (y = 0; y < height - 1; y++)
{
@ -292,6 +294,7 @@ pluginCore (struct piArgs *argp)
memcpy (nextrow + rowsize, nextrow + rowsize - Bpp, Bpp);
nlfiltRow (lastrow, thisrow, nextrow, dstbuf, width, Bpp, filtno);
gimp_pixel_rgn_set_row (&dstPr, dstbuf, 0, y, width);
/* rotate row buffers */
temprow = lastrow; lastrow = thisrow;
thisrow = nextrow; nextrow = temprow;
}
@ -713,6 +716,10 @@ gint noisevariance; /* global so that pixel processing code can get at it q
#define RUNSCALE(x) (((x) + (1 << (SCALEB-1))) >> SCALEB) /* rounded un-scale */
#define UNSCALE(x) ((x) >> SCALEB)
/* Note: modified by David Hodson, nlfiltRow now accesses
* srclast, srcthis, and srcnext from [-Bpp] to [width*Bpp-1].
* Beware if you use this code anywhere else!
*/
static void
nlfiltRow(guchar *srclast, guchar *srcthis, guchar *srcnext, guchar *dst,
gint width, gint Bpp, gint filtno) {

1
tools/authorsgen/contributors
View File

@ -68,6 +68,7 @@ Henrik Hansen
Ville Hautamaki [Ville Hautamäki]
James Henstridge
Eric Hernes
David Hodson
Christoph Hoegl
Wolfgang Hofer
Jan Hubicka