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ioq3/README
Thilo Schulz 7d51d75b05 - Fix arbitrary cvar overwrite flaw: http://aluigi.altervista.org/adv.htm 
- Add myself to maintainer list :)
2006-07-03 21:37:50 +00:00

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`------------------------------------------ http://icculus.org/quake3 ---------'
The intent of this project is to provide a baseline Quake 3 which may be used
for further development. Some of the major features currently implemented are:
* SDL backend for unix-like operating systems
* OpenAL sound API support (multiple speaker support and better sound
quality)
* Full x86_64 support on Linux
* MinGW compilation support on Windows and cross compilation support on Linux
* AVI video capture of demos
* Much improved console autocompletion
* Persistent console history
* Colorized terminal output
* Optional Ogg Vorbis support
* Much improved QVM tools
* Support for various esoteric operating systems (see
http://icculus.org/quake3/?page=status)
* Many, many bug fixes
The map editor and associated compiling tools are not included. We suggest you
use a modern copy from http://www.qeradiant.com/.
The original id software readme that accompanied the Q3 source release has been
renamed to id-readme.txt so as to prevent confusion. Please refer to the
web-site for updated status.
--------------------------------------------- Compilation and installation -----
For *nix
1. Change to the directory containing this readme.
2. Run 'make'.
For Windows, using MinGW
1. Download and install MinGW and MSys from http://www.mingw.org/.
2. Download http://www.libsdl.org/extras/win32/common/directx-devel.tar.gz
and untar it into your MinGW directory (usually C:\MinGW).
3. Open an MSys terminal, and follow the instructions for compiling on *nix.
For Windows, using MSVC
1. Run Visual Studio and open the quake3.sln file in the code/win32/msvc
directory.
2. Build.
3. Copy the resultant Quake3.exe to your quake 3 directory, make a backup if
you want to keep your original. If you wish to use native libraries, copy
the resultant dlls to your baseq3 directory.
Installation, for *nix
1. Set the COPYDIR variable in the shell to be where you installed Quake 3
to. By default it will be /usr/local/games/quake3 if you haven't set it.
This is the path as used by the original Linux Q3 installer and subsequent
point releases.
2. Run 'make copyfiles'.
It is also possible to cross compile for Windows under *nix using MinGW. A
script is available to build a cross compilation environment from
http://www.libsdl.org/extras/win32/cross/build-cross.sh. The gcc/binutils
version numbers that the script downloads may need to be altered. After you
have successfully run this script cross compiling is simply a case of using
'./cross-make-mingw.sh' in place of 'make'.
If the make based build system is being used (i.e. *nix or MinGW), the
following variables may be set, either on the command line or in
Makefile.local:
OPTIMIZE - use this for custom CFLAGS
DEFAULT_BASEDIR - extra path to search for baseq3 and such
BUILD_SERVER - build the 'ioq3ded' server binary
BUILD_CLIENT - build the 'ioquake3' client binary
BUILD_CLIENT_SMP - build the 'ioquake3-smp' client binary
BUILD_GAME_SO - build the game shared libraries
BUILD_GAME_QVM - build the game qvms
USE_SDL - use the SDL backend where available
USE_OPENAL - use OpenAL where available
USE_OPENAL_DLOPEN - link with OpenAL at runtime
USE_CODEC_VORBIS - enable Ogg Vorbis support
USE_LOCAL_HEADERS - use headers local to ioq3 instead of system ones
USE_CCACHE - use ccache compiler caching tool
COPYDIR - the target installation directory
The defaults for these variables differ depending on the target platform.
------------------------------------------------------------------ Console -----
New cvars
cl_autoRecordDemo - record a new demo on each map change
cl_aviFrameRate - the framerate to use when capturing video
cl_aviMotionJpeg - use the mjpeg codec when capturing video
s_useOpenAL - use the OpenAL sound backend if available
s_alPrecache - cache OpenAL sounds before use
s_alGain - the value of AL_GAIN for each source
s_alSources - the total number of sources (memory) to
allocate
s_alDopplerFactor - the value passed to alDopplerFactor
s_alDopplerSpeed - the value passed to alDopplerVelocity
s_alMinDistance - the value of AL_REFERENCE_DISTANCE for
each source
s_alRolloff - the value of AL_ROLLOFF_FACTOR for each
source
s_alMaxSpeakerDistance - ET_SPEAKERS beyond this distance are
culled
s_alDriver - which OpenAL library to use
s_sdlBits - SDL bit resolution
s_sdlSpeed - SDL sample rate
s_sdlChannels - SDL number of channels
s_sdlDevSamps - SDL DMA buffer size override
s_sdlMixSamps - SDL mix buffer size override
ttycon_ansicolor - enable use of ANSI escape codes in the tty
r_GLlibCoolDownMsec - wait for some milliseconds to close GL
library
com_altivec - enable use of altivec on PowerPC systems
s_backend - read only, indicates the current sound
backend
in_shiftedKeys - non-SDL Linux only; enables binding to
shifted keys
in_joystickNo - SDL only; select which joystick to use
cl_consoleHistory - read only, stores the console history
cl_platformSensitivity - read only, indicates the mouse input
scaling
r_ext_texture_filter_anisotropic - anisotropic texture filtering
New commands
video [filename] - start video capture (use with demo command)
stopvideo - stop video capture
------------------------------------------------------------ Miscellaneous -----
Using shared libraries instead of qvm
To force Q3 to use shared libraries instead of qvms run it with the following
parameters: +set sv_pure 0 +set vm_cgame 0 +set vm_game 0 +set vm_ui 0
Using Demo Data Files
Copy demoq3/pak0.pk3 from the demo installer to your baseq3 directory. The
qvm files in this pak0.pk3 will not work, so you have to use the native
shared libraries or qvms from this project. To use the new qvms, they must be
put into a pk3 file. A pk3 file is just a zip file, so any compression tool
that can create such files will work. The shared libraries should already be
in the correct place. Use the instructions above to use them.
Please bear in mind that you will not be able to play online using the demo
data, nor is it something that we like to spend much time maintaining or
supporting.
64bit mods
If you wish to compile external mods as shared libraries on a 64bit platform,
and the mod source is derived from the id Q3 SDK, you will need to modify the
interface code a little. Open the files ending in _syscalls.c and change
every instance of int to intptr_t in the declaration of the syscall function
pointer and the dllEntry function. Also find the vmMain function for each
module (usually in cg_main.c g_main.c etc.) and similarly replace the return
value in the prototype with intptr_t (arg0, arg1, ...stay int).
Add the following code snippet to q_shared.h:
#ifdef Q3_VM
typedef int intptr_t;
#else
#include <stdint.h>
#endif
Note if you simply wish to run mods on a 64bit platform you do not need to
recompile anything since by default Q3 uses a virtual machine system.
Creating mods compatible with Q3 1.32b
If you're using this package to create mods for the last official release of
Q3, it is necessary to pass the commandline option '-vq3' to your invocation
of q3asm. This is because by default q3asm outputs an updated qvm format that
is necessary to fix a bug involving the optimizing pass of the x86 vm JIT
compiler. See http://www.quakesrc.org/forums/viewtopic.php?t=5665 (if it
still exists when you read this) for more details.
------------------------------------------------------------- Contributing -----
Please send all patches to bugzilla (https://bugzilla.icculus.org), or join the
mailing list (quake3-subscribe@icculus.org) and submit your patch there. The
best case scenario is that you submit your patch to bugzilla, and then post the
URL to the mailing list. If you're too lazy for either method, then it would be
better if you emailed your patches to zakk@icculus.org directly than not at
all.
The focus for ioq3 to develop a stable base suitable for further development,
and provide players with the same Quake 3 experience they've had for years.
As such ioq3 does not have any significant graphical enhancements and none are
planned at this time. However, improved graphics and sound patches will be
accepted as long as they are entirely optional, do not require new media and
are off by default.
--------------------------------------------- Building Official Installers -----
We need help getting automated installers on all the platforms that icculus.org/
quake3 supports. We don't neccesarily care about all the installers being
identical, but we have some general guidelines:
* Please include the id patch pk3s in your installer, which are available
from http://icculus.org/quake3/?page=getdata subject to agreement to the id
EULA. Your installer shall also ask the user to agree to this EULA (which
is in the /web/include directory for your convenience) and subsequently
refuse to continue the installation of the patch pk3s and pak0.pk3 if they
do not.
* Please don't require pak0.pk3, since not everyone using the engine
plans on playing Quake 3 Arena on it. It's fine to (optionally) assist the
user in copying the file or tell them how.
* It is fine to just install the binaries without requiring id EULA agreement,
providing pak0.pk3 and the patch pk3s are not refered to or included in the
installer.
* Please include at least an SDL so/dylib on every platform but Windows
(which doesn't use it yet).
* Please include an OpenAL so/dylib/dll, since every platform should be using
it by now.
* We'll bump the version to 1.34 as soon as we get enough people who can
demonstrate a competent build for Windows and Mac.
* Please contact the mailing list and/or zakk@timedoctor.org after you've
made your installer.
* Please be prepared to alter your installer on the whim of the maintainers.
* Your installer will be mirrored to an "official" directory, thus making it
a done deal.
------------------------------------------------------------------ Credits -----
Maintainers
Aaron Gyes <floam at sh dot nu>
Ludwig Nussel <ludwig.nussel@suse.de>
Ryan C. Gordon <icculus@icculus.org>
Thilo Schulz <arny@ats.s.bawue.de>
Tim Angus <tim@ngus.net>
Zachary J. Slater <zakk@timedoctor.org>
Significant contributions from
Andreas Kohn <andreas@syndrom23.de>
Joerg Dietrich <Dietrich_Joerg@t-online.de>
Stuart Dalton <badcdev@gmail.com>
Vincent S. Cojot <vincent at cojot dot name>
optical <alex@rigbo.se>
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