Isn't DGA mode being phased out? I been using XPutImage and the XVidMode extension to provide fullscreen instead. Only problem being you have no control over when the image is actually copied to the display, so tearing results, unless someone else here would like to enlighten me...
On Thu, 25 Nov 2004 11:38:17 -0800 (PST) Mark Vojkovich <[EMAIL PROTECTED]> wrote: > If you want tearless rendering you should be flipping. Ie. render > to a non displayed portion of the framebuffer, then call XDGASetViewport > to display it after the copy is finished. See the DGA test apps at > http://www.xfree86.org/~mvojkovi/, specifically texture.tar.gz. > If the texture and skull demos aren't tearless, there is a bug in the > DGA driver support for your card. > > > Mark. > > On Thu, 25 Nov 2004, Eugene Farinas wrote: > > > Hi guys! We're developing a DGA program that render full screen at > > 1280x1024 16 bpp 15fps the video image read from a sony camera, but we're > > experiencing tearing artifacts during rendering. This is a part of the code > > that copies the data to the frame buffer: > > > > void CAM_APP::DisplayImage_NoPartial(unsigned char* offset) > > { > > register int j; > > register unsigned long caddr = (unsigned long) offset; > > for(j=0; j<iSize; caddr+=2,j++){ > > *( (unsigned short*) caddr ) = sTable[g_pBuf[j]]; > > } > > } > > > > Where the offset is the start of the buffer destination, and g_pBuf is the > > data captured from the camera. we've tried copying the data during vertical > > resync but we're still experiencing tearing on the image. We're using an > > AMD gx2 geode processor w/ 128 mb ram and 8mb vram. I would like to ask > > your help in removing the tearing artifacts. Thanks. > > > > --- > > Outgoing mail is certified Virus Free. > > Checked by AVG anti-virus system (http://www.grisoft.com). > > Version: 6.0.797 / Virus Database: 541 - Release Date: 11/15/2004 > > > > > > _______________________________________________ > > Devel mailing list > > [EMAIL PROTECTED] > > http://XFree86.Org/mailman/listinfo/devel > > > _______________________________________________ > Devel mailing list > [EMAIL PROTECTED] > http://XFree86.Org/mailman/listinfo/devel > _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
