Tony Wasserka : d3dx9: Fix an off by one error in point_filter_simple_data.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ecce9eebcf14ed31a4613e7fc7902a35bd2430d3
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ecce9eebcf14ed31a4613e7fc7...

Author: Tony Wasserka 
Date:   Sat Aug 21 13:07:09 2010 +0200

d3dx9: Fix an off by one error in point_filter_simple_data.

---

dlls/d3dx9_36/surface.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/d3dx9_36/surface.c b/dlls/d3dx9_36/surface.c
index ca4fd25..199209f 100644
--- a/dlls/d3dx9_36/surface.c
+++ b/dlls/d3dx9_36/surface.c
@@ -586,16 +586,16 @@ static void point_filter_simple_data(CONST BYTE *src,  UINT  srcpitch, POINT  sr
     for(y = 0;y < destsize.y;y++) {
         BYTE *destptr = dest + y * destpitch;
         const BYTE *bufptr = src + srcpitch * (y * srcsize.y / destsize.y);
-        const BYTE *srcptr = bufptr;

for(x = 0;x < destsize.x;x++) {
+            const BYTE *srcptr = bufptr + (x * srcsize.x / destsize.x) * srcformat->bytes_per_pixel;
+
             /* extract source color components */
             if(srcformat->type == FORMAT_ARGB) get_relevant_argb_components(&conv_info, *(const DWORD*)srcptr, channels);

/* recombine the components */
             if(destformat->type == FORMAT_ARGB) make_argb_color(&conv_info, channels, (DWORD*)destptr);

-            srcptr = bufptr + (x * srcsize.x / destsize.x) * srcformat->bytes_per_pixel;
             destptr += destformat->bytes_per_pixel;
         }
     }