From: JAB Newsgroups: comp.os.msdos.djgpp Subject: Re: Plotting a 24bit color pixel in Allegro Date: Thu, 24 Feb 2000 17:03:00 GMT Organization: Deja.com - Before you buy. Lines: 36 Message-ID: <893o80$vag$1@nnrp1.deja.com> References: <8935rr$hs0$1 AT nnrp1 DOT deja DOT com> NNTP-Posting-Host: 161.112.232.10 X-Article-Creation-Date: Thu Feb 24 17:03:00 2000 GMT X-Http-User-Agent: Mozilla/4.0 (compatible; MSIE 5.0; Windows NT) X-Http-Proxy: 1.0 diaphanous:3128 (Squid/1.1.22), 1.0 x43.deja.com:80 (Squid/1.1.22) for client 161.112.78.136, 161.112.232.10 X-MyDeja-Info: XMYDJUIDjab_joe To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com In article , Damian Yerrick wrote: > On Thu, 24 Feb 2000 11:49:15 GMT, JAB wrote: > > > How do you plot a pixel in 24bit (or 32bit) color with Allegro? > > I have the image I want on screen in a unsigned long 1D array. I need > >to write that to screen as fast as possible. (It's gfx 3D thing I've > >made and converting to the PC). Before on the good old Acorn what I was > >doing was just writing this array to another array that's memory > >pointer was at the screen address. I know that you can't really do that > >on the PC in 24bit color at things like 640 by 480 so I need to find > >another fast way. Anyone got any words of advice, or at least telling > >me how to get a 24bit color pixel on the screen. > > Look in the Allegro docs for putpixel() and direct memory access. > I have. I'm doing putpixel(screen, x,y,makecol(Rendered[temp].r,Rendere[temp].g,Rendered [temp].b)); at the moment and it's not working. Well I'll getting an image. But not in a way that imply working true color to me, because there is no more then 16 colors on the screen. Could I be missing something? -- Catch ya later JAB Sent via Deja.com http://www.deja.com/ Before you buy.