This patch resolves some trouble with bitmap drawing (DIBs), when the y-axis
uses negative mapping (LPtoDP). This makes Aut0CaD r. 14 usable under wine.
Please note bug #720, which was closed by this patch and note any problems w.
the patch.
The second patch is a simple suggestion about a NULL handler. IMHO all NULLs
coming from external programs-libs should be handled in a prog. In that case,
a NULL causes no harm, but I guess my 'early test' may introduce a minor
speedup.
--- ../wine-old1/objects/gdiobj.c Wed Jun 5 01:17:54 2002
+++ objects/gdiobj.c Thu Jun 20 21:40:56 2002
@@ -777,6 +776,9 @@
{
GDIOBJHDR *ptr = NULL;
+ if (!handle)
+ return NULL; /* Handle NULL (even if M$ wouldn't). Am I right? */
+
_EnterSysLevel( &GDI_level );
if (handle & 2) /* GDI heap handle */
--- ../wine-old1/graphics/x11drv/dib.c Wed Jun 5 01:16:58 2002
+++ graphics/x11drv/dib.c Thu Jun 20 21:49:55 2002
@@ -17,6 +17,8 @@
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+ /* Changelog: 20/6/2002 : some hack for partial dib on negative-y axis
+ * solves bug #720 !
+ */
#include "config.h"
@@ -4795,9 +4797,11 @@
descr.gc = physDev->gc;
descr.xSrc = xSrc;
descr.ySrc = tmpheight >= 0 ? lines-(ySrc-startscan)-cy+(oldcy-cy)
- : ySrc - startscan;
- descr.xDest = dc->DCOrgX + XLPTODP( dc, xDest );
- descr.yDest = dc->DCOrgY + YLPTODP( dc, yDest ) +
+ : lines-(ySrc-startscan)-cy+(oldcy-cy);
+ /*: ySrc - startscan; / * 0- */
+ /* The hack above was found by trial and error. Report any objections please! */
+ descr.xDest = physDev->org.x + XLPTODP( dc, xDest );
+ descr.yDest = physDev->org.y + YLPTODP( dc, yDest ) +
(tmpheight >= 0 ? oldcy-cy : 0);
descr.width = cx;
descr.height = cy;
