Allow creation of BI_BITFIELDS DIBSections since they're not really compressed

[Dmitry Timoshkov]

Hello,

Changelog:
    Ulrich Czekalla <ulrich at codeweavers.com>
    - allow creation of BI_BITFIELDS DIBSections since they're not
    really compressed.

--- cvs/hq/wine/dlls/gdi/dib.c	2005-12-13 19:54:09.000000000 +0800
+++ wine/dlls/gdi/dib.c	2006-01-02 16:02:21.000000000 +0800
@@ -1148,6 +1148,12 @@ HBITMAP DIB_CreateDIBSection(HDC hdc, co
                                            &planes, &bpp, &compression, &sizeImage )) == -1))
         return 0;
 
+    if (compression && compression != BI_BITFIELDS)
+    {
+        TRACE("can't create a compressed (%lu) dibsection\n", compression);
+        return 0;
+    }
+
     if (!(dib = HeapAlloc( GetProcessHeap(), 0, sizeof(*dib) ))) return 0;
 
     TRACE("format (%ld,%ld), planes %d, bpp %d, size %ld, %s\n",