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Bug 560283 – "Scale image..." causes distortion around edges.

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2008-11-11  Sven Neumann  <sven@gimp.org>

	Bug 560283 – "Scale image..." causes distortion around edges.

	* app/paint-funcs/scale-region.c (scale): corrected fix for
	bug #556248.


svn path=/trunk/; revision=27612
This commit is contained in:
Sven Neumann
2008-11-11 07:47:31 +00:00
committed by Sven Neumann
parent cb2e2b636a
commit 8ad82efc25
2 changed files with 9 additions and 2 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2008-11-11 Sven Neumann <sven@gimp.org>
Bug 560283 – "Scale image..." causes distortion around edges.
* app/paint-funcs/scale-region.c (scale): corrected fix for
bug #556248.
2008-11-11 Sven Neumann <sven@gimp.org> 2008-11-11 Sven Neumann <sven@gimp.org>
* plug-ins/common/file-pdf.c: also return image type and number of * plug-ins/common/file-pdf.c: also return image type and number of

4
app/paint-funcs/scale-region.c
View File

@ -509,7 +509,7 @@ scale (TileManager *srcTM,
for (y = region.y; y < y1; y++) for (y = region.y; y < y1; y++)
{ {
guchar *pixel = row; guchar *pixel = row;
gdouble yfrac = y * scaley + 0.5; gdouble yfrac = (y + 0.5) * scaley - 0.5;
gint sy = (gint) yfrac; gint sy = (gint) yfrac;
gint x; gint x;
@ -517,7 +517,7 @@ scale (TileManager *srcTM,
for (x = region.x; x < x1; x++) for (x = region.x; x < x1; x++)
{ {
gdouble xfrac = x * scalex + 0.5; gdouble xfrac = (x + 0.5) * scalex - 0.5;
gint sx = (gint) xfrac; gint sx = (gint) xfrac;
xfrac = xfrac - sx; xfrac = xfrac - sx;