[Bug 30615] Audition CS6 (5.0) - strange UI graphics

http://bugs.winehq.org/show_bug.cgi?id=30615

Jan Boysen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|-unknown                    |gdi32

--- Comment #2 from Jan Boysen  2012-05-11 13:28:49 CDT ---
I have done some further investigations on this using the wine debugger and was
able to investigate a possible "bug"

It seems Native gdi is padding the requested bitmap width in
CreateBitmapIndirect() to next even 4 pixels.

This little quick and dirty patch helps to draw all Audition interfaces
cleanly:

--- dlls/gdi32/bitmap.c.orig    2012-05-11 20:23:35.645274907 +0200
+++ dlls/gdi32/bitmap.c 2012-05-11 20:23:05.201276520 +0200
@@ -211,6 +211,9 @@
             bm.bmHeight = -bm.bmHeight;
         if (bm.bmWidth < 0)
             bm.bmWidth = -bm.bmWidth;
+
+       if(bm.bmWidth%4 >0)
+               bm.bmWidth += 4-(bm.bmWidth%4);
     }
     TRACE("h:%d, w:%d\n", bm.bmHeight, bm.bmWidth);

This theory would have to be verified by a testcase with native windows.
Maybe by checking the attributes or size of the returned HBITMAP.

Audition requests a bitmap of 170x20 pixels but seems to fill the pixeldata for
172x20 pixels.