Fixed bug #15 SDL_blit_A.mmx-speed.patch.txt -- Speed improvements and a bugfix for the current GCC inline mmx asm code: - Changed some ops and removed some resulting useless ones. - Added some instruction parallelism (some gain) The resulting speed on my Xeon improved upto 35% depending on the function (measured in fps). - Fixed a bug where BlitRGBtoRGBSurfaceAlphaMMX() was setting the alpha component on the destination surfaces (to opaque-alpha) even when the surface had none. SDL_blit_A.mmx-msvc.patch.txt -- MSVC mmx intrinsics version of the same GCC asm code. MSVC compiler tries to parallelize the code and to avoid register stalls, but does not always do a very good job. Per-surface blending MSVC functions run quite a bit faster than their pure-asm counterparts (upto 55% faster for 16bit ones), but the per-pixel blending runs somewhat slower than asm. - BlitRGBtoRGBSurfaceAlphaMMX and BlitRGBtoRGBPixelAlphaMMX (and all variants) can now also handle formats other than (A)RGB8888. Formats like RGBA8888 and some quite exotic ones are allowed -- like RAGB8888, or actually anything having channels aligned on 8bit boundary and full 8bit alpha (for per-pixel alpha blending). The performance cost of this change is virtually 0 for per-surface alpha blending (no extra ops inside the loop) and a single non-MMX op inside the loop for per-pixel blending. In testing, the per-pixel alpha blending takes a ~2% performance hit, but it still runs much faster than the current code in CVS. If necessary, a separate function with this functionality can be made. This code requires Processor Pack for VC6.

SDL for Dreamcast (beta2)

	BERO
	berobero@users.sourceforge.net 

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

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

compile
- source environ.sh (from the KOS distribution)
- make -f Makefile.dc

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