kolibrios-fun/contrib/other/sdlquake-1.0.9/README.SDL
CleverMouse 3cf7852e03 autobuild sdlquake
git-svn-id: svn://kolibrios.org@5131 a494cfbc-eb01-0410-851d-a64ba20cac60
2014-09-18 11:46:53 +00:00

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This is a quick hack of Quake ported to the Simple DirectMedia Layer library.
http://www.devolution.com/~slouken/SDL/
To build under Linux, simply run ./configure; make
This game requires the original Quake datafiles. You can get the shareware
data files from http://www.idsoftware.com/.
Of interest in the original X sources is the following:
// Duff's Device
count = width;
n = (count + 7) / 8;
dest = ((PIXEL16 *)src) + x+width - 1;
src += x+width - 1;
switch (count % 8) {
case 0: do { *dest-- = st2d_8to16table[*src--];
case 7: *dest-- = st2d_8to16table[*src--];
case 6: *dest-- = st2d_8to16table[*src--];
case 5: *dest-- = st2d_8to16table[*src--];
case 4: *dest-- = st2d_8to16table[*src--];
case 3: *dest-- = st2d_8to16table[*src--];
case 2: *dest-- = st2d_8to16table[*src--];
case 1: *dest-- = st2d_8to16table[*src--];
} while (--n > 0);
}
This idea may make it into the SDL blitters if it turns out to be faster
than my current code. :)
Thanks to Zoid, Dave Taylor, John Carmack, and everyone else involved in the
open source release of id games. :)
- Sam Lantinga (slouken@devolution.com) 12/25/1999