Quake2 SDL

This is a port of Quake2 based on icculus quake2lnx. Changes are:

• Switched to SDL2 from SDL1.2. This allows you to run the game on Wayland.
• The building system is now cmake.
• Lots of unmaintained source code removed, including the code for different platforms like Solaris, IRIX, etc. This code was almost identical to one found in src/linux. Also I removed the code related to X11 and SVGAlib.
• Software renderer has a bug in a code which draws alpha surfaces. Just switch drawing of alpha surfaces off now.
• Audio CD playback is switched off (Does anyone have CD drive now? ).
• Apply bugfixes from FreeBSD ports.
• Fix some compiler warnings and possible bugs.
• Add 1920x1080 screen resolution.

TODO:

• Remove even more boilerplate and machine-dependent code, use SDL crossplatform stuff.
• Fix alpha surfaces rendering in software renderer.
• Build CTF mode.

Building and installation

To build Quake2 SDL install SDL2, OpenGL and jpeg libraries, then run the following commands:

mkdir build
cd build
cmake ..
make
make install

You can pass -DWITH_QMAX=ON option to cmake to build an improved OpenGL renderer or -DWITH_RETEX=ON to allow retexture packs. You will need to download these packs from icculus site (download .pak files). You will also need pak0.pak from the original game. Place these files where game.so is installed or to /install/prefix/share/quake2/baseq2.