te: Thu, 17 Apr 2003 11:25:26 -0700 From: "Jim" Subject: [SDL] Frame buffer patches... Would seem that GCC 3.2.2 promotes all signed values to unsigned if any single vlaue is unsigned in an expression... for instance when calculating an elo touch position....evertyhign is an (int) except for cach_vinfo.xres which is unsigned. THerefore if y ou reverse the SDL_ELO_MIN_X and SDL_ELO_MAX_X values the resulging negative value pegs the expression to it's max. Attached it the accumu lated patch to typecast the unsigned values to (int) - *dx = (cache_vinfo.xres - (cache_vinfo.xres * (input_x - ELO_MIN_X)) / width); + *dx = ((int)cache_vinfo.xres - ((int)cache_vinfo.xres * (input_x - ELO_MIN_X)) / width); and also to provide quite failure to operations which have the screen currently locked... The touch screen I'm using the original values were exactly opposite of any position I touched on the screen - evaluating the math the expr ession SHOULD have handled reversing the min and max values - and after casting the unsigned .xres and .yres to a signed int - worked well. .. Jim

SDL for Dreamcast (beta2)

	BERO
	bero@geocities.co.jp

	http://www.geocities.co.jp/Playtown/2004/

this work with kos-newlib
http://sourceforge.net/projects/dcquake/

compile
- edit KOS_BASE in Makefie.dc for your enviroment
- make -f Makefile.dc

FIXME: The KOS thread files can be found on HERO's site - not in the SDL source.
- overwrite thread/*.c to kos-1.1.7/kernel/thread
- rebuild kos

compile with gl support
- install latest libgl from http://sourceforge.net/projects/dcquake/
- uncomment GL=1 in Makefile.dc
- make -f Makefile.dc clean
- make -f Makefile.dc

install
- copy include/*.h and libSDL.a or libSDL_gl.a for your enviroment

changelog:

beta2
- OpenGL support
- Hardware page flip support

beta
- thread, timer don't tested so much.
- not support OpenGL