From: "Graham Reeds" <grahamr AT dtn DOT ntl DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <6v%E5.29784$L12 DOT 598411 AT news2-win DOT server DOT ntlworld DOT com> <8s49vu$k4l$1 AT slb6 DOT atl DOT mindspring DOT net> <JAlF5.31810$uq5 DOT 615829 AT news6-win DOT server DOT ntlworld DOT com> <8s4uou$381$1 AT slb7 DOT atl DOT mindspring DOT net>
Subject: Re: VBE2.0 w/LFB + GCC
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Date: Fri, 13 Oct 2000 01:22:29 +0100
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Okay.  We are getting somewhere.  It doesn't crash, and I do get pretty
colours, but only in what appears to be the top 8th of the screen.  If you
hit a key once and leave it running the purple smiley face appears and then
disappears back into the void.

The mode set code now looks like this:

      /* get videomemory address */
      meminfo.size = (unsigned long)(modeinfoblock.bytesperscanline *
modeinfoblock.yresolution);
      meminfo.address = (unsigned long)modeinfoblock.physbaseptr;
      __dpmi_physical_address_mapping(&meminfo);
      __dpmi_lock_linear_region(&meminfo);
      videomemory = meminfo.address;

      /* try selectors */
      videoselector = __dpmi_allocate_ldt_descriptors(1);
      __dpmi_set_segment_base_address(videoselector, videomemory);
      __dpmi_set_segment_limit(videoselector, modeinfoblock.bytesperscanline
* modeinfoblock.yresolution);

      /* set up lfb frameend() */
      remainder = (modeinfoblock.bytesperscanline *
modeinfoblock.yresolution) / 4;
      frameend = &frameendlfb;

And the new blitting function looks like:

 _movedatal(_my_ds(), (unsigned int)primarysurface->dsimage, videoselector,
0x00, remainder);

Everything works fine, and the numbers are right. So now what's the problem?

I've updated my source at http://homepage.dtn.ntl.com/grahamr/vbe2.0.zip if
you want to take a look and help me out.

Cheers.
--

Stay Lucky, Graham "Mournblade" Reeds.
ICQ No.:  30514803
http://homepage.dtn.ntl.com/grahamr