tom fogal wrote: > Our package includes Mesa as part of its build, and we use swrast > for rendering in certain cases. For quite some time now, we've been > patching the Mesa source to define the MAX_WIDTH/HEIGHT in config.h to > be a bit larger: currently 16k^2. > > Is there interest in bumping this limit up? Are there issues we're not > considering when we do this? > > Perhaps we could have a config.h.in which gets generated during > configuration, and a --with-max-width=16384 could accomodate our case > without inflating the standard buffer sizes.
I should add this to the FAQ because I answer it every 6 months or so... The swrast triangle code uses fixed point arithmetic. If there aren't enough fractional bits, the edge stepping for a very long edge can stray, possibly introducing cracks between adjacent triangles, etc. See the comments in s_tritemp.h Also, there are quite a few arrays dimensioned by MAX_WIDTH so you'll be using more memory in various places. I'd be OK with modifying config.h to read: #ifndef MAX_WIDTH #define MAX_WIDTH 4096 #endif Then allowing a config option like --with-max-width=16384 which defines MAX_WIDTH, MAX_HEIGHT. Feel free to submit a patch. -Brian ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
