Andrew Eikum : quartz: Don't write past end of d3d9 buffer.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ac59a68162321610841ed072981adddb8bc78c56
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ac59a68162321610841ed072981adddb8bc78c56

Author: Andrew Eikum <aeikum at codeweavers.com>
Date:   Mon Jan  9 10:46:01 2017 -0600

quartz: Don't write past end of d3d9 buffer.

Signed-off-by: Andrew Eikum <aeikum at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/quartz/vmr9.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/quartz/vmr9.c b/dlls/quartz/vmr9.c
index 3c8393f..490d8d8 100644
--- a/dlls/quartz/vmr9.c
+++ b/dlls/quartz/vmr9.c
@@ -260,9 +260,9 @@ static DWORD VMR9_SendSampleData(struct quartz_vmr *This, VMR9PresentationInfo *
         lock.pBits = (char *)lock.pBits + (height * lock.Pitch);
         while (height--)
         {
+            lock.pBits = (char *)lock.pBits - lock.Pitch;
             memcpy(lock.pBits, data, width * bmiHeader->biBitCount / 8);
             data = data + width * bmiHeader->biBitCount / 8;
-            lock.pBits = (char *)lock.pBits - lock.Pitch;
         }
     }
     else if (lock.Pitch != width * bmiHeader->biBitCount / 8)