IOQ3 commit 1951

This commit is contained in:
Richard Allen 2011-06-27 20:39:13 +00:00
parent 61c5198a85
commit 4bc128dcc2

View file

@ -91,8 +91,16 @@ Makefile.local:
USE_CURL - use libcurl for http/ftp download support
USE_CURL_DLOPEN - link with libcurl at runtime
USE_CODEC_VORBIS - enable Ogg Vorbis support
USE_MUMBLE - enable Mumble support
USE_VOIP - enable built-in VoIP support
USE_INTERNAL_SPEEX - build internal speex library instead of dynamically
linking against system libspeex
USE_INTERNAL_ZLIB - build and link against internal zlib
USE_INTERNAL_JPEG - build and link against internal JPEG library
USE_LOCAL_HEADERS - use headers local to ioq3 instead of system ones
DEBUG_CFLAGS - C compiler flags to use for building debug version
COPYDIR - the target installation directory
TEMPDIR - specify user defined directory for temp files
The defaults for these variables differ depending on the target platform.
@ -107,6 +115,11 @@ New cvars
cl_cURLLib - filename of cURL library to load
cl_consoleKeys - space delimited list of key names or
characters that toggle the console
cl_mouseAccelStyle - Set to 1 for QuakeLive mouse acceleration
behaviour, 0 for standard q3
cl_mouseAccelOffset - Tuning the acceleration curve, see below
cl_gamename - Gamename sent to master server in
getserversExt query
in_joystickUseAnalog - Do not translate joystick axis events
to keyboard commands
@ -146,26 +159,48 @@ New cvars
s_alDriver - which OpenAL library to use
s_alDevice - which OpenAL device to use
s_alAvailableDevices - list of available OpenAL devices
s_alInputDevice - which OpenAL input device to use
s_alAvailableInputDevices - list of available OpenAL input devices
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
com_ansiColor - enable use of ANSI escape codes in the tty
com_altivec - enable use of altivec on PowerPC systems
com_standalone - Run in standalone mode
com_maxfpsUnfocused - Maximum frames per second when unfocused
com_maxfpsMinimized - Maximum frames per second when minimized
s_backend - read only, indicates the current sound
backend
s_muteWhenMinimized - mute sound when minimized
s_muteWhenUnfocused - mute sound when window is unfocused
com_ansiColor - enable use of ANSI escape codes in the tty
com_altivec - enable use of altivec on PowerPC systems
com_standalone (read only) - If set to 1, quake3 is running in
standalone mode
com_basegame - Use a different base than baseq3. If no
original Quake3 or TeamArena pak files
are found, this will enable running in
standalone mode
com_homepath - Specify name that is to be appended to the
home path
com_maxfpsUnfocused - Maximum frames per second when unfocused
com_maxfpsMinimized - Maximum frames per second when minimized
com_busyWait - Will use a busy loop to wait for rendering
next frame when set to non-zero value
com_pipefile - Specify filename to create a named pipe
through which other processes can control
the server while it is running.
Nonfunctional on Windows.
in_joystickNo - select which joystick to use
in_availableJoysticks - list of available Joysticks
in_keyboardDebug - print keyboard debug info
r_ext_texture_filter_anisotropic - anisotropic texture filtering
sv_dlURL - the base of the HTTP or FTP site that
holds custom pk3 files for your server
sv_banFile - Name of the file that is used for storing
the server bans
sv_heartbeat - Heartbeat string sent to master server
sv_flatline - Heartbeat string sent to master server
when server is killed
net_ip6 - IPv6 address to bind to
net_port6 - port to bind to using the ipv6 address
@ -179,9 +214,21 @@ New cvars
ipv6 servers on the local network
net_mcastiface - outgoing interface to use for scan
oldprotocol - when encountering a server/client that
only supports the version configured in
this cvar, ioquake3 will use the old and
less secure protocol from quake3 1.32c.
(startup only)
protocol - Allow changing protocol version that is
sent to the server (startup only)
r_allowResize - make window resizable (SDL only)
r_ext_texture_filter_anisotropic - anisotropic texture filtering
r_zProj - distance of observer camera to projection
plane in quake3 standard units
r_greyscale - render black and white images
r_greyscale - desaturate textures, useful for anaglyph,
supports values in the range of 0 to 1
r_stereoEnabled - enable stereo rendering for techniques
like shutter glasses (untested)
r_anaglyphMode - Enable rendering of anaglyph images
@ -199,16 +246,27 @@ New cvars
See also
http://wiki.ioquake3.org/Stereo_Rendering
for more information
r_marksOnTriangleMeshes - Support impact marks on md3 models, MOD
developers should increase the mark
triangle limits in cg_marks.c if they
intend to use this.
r_sdlDriver - read only, indicates the SDL driver
backend being used
sv_banFile - Name of the file that is used for storing
the server bans.
r_noborder - Remove window decoration from window
managers, like borders and titlebar.
r_screenshotJpegQuality - Controls quality of jpeg screenshots
captured using screenshotJPEG
r_aviMotionJpegQuality - Controls quality of video capture when
cl_aviMotionJpeg is enabled
New commands
video [filename] - start video capture (use with demo command)
stopvideo - stop video capture
stopmusic - stop background music
minimize - Minimize the game and show desktop
print - print out the contents of a cvar
unset - unset a user created cvar
banaddr <range> - ban an ip address range from joining a game on this
server, valid <range> is either playernum or CIDR
@ -221,8 +279,12 @@ New commands
flushbans - delete all bans
net_restart - restart network subsystem to change latched settings
game_restart <fs_game> - Switch to another mod
------------------------------------------------------------ Miscellaneous -----
which <filename/path> - print out the path on disk to a loaded item
--------------------------------------------------------- README for Users -----
Using shared libraries instead of qvm
To force Q3 to use shared libraries instead of qvms run it with the following
@ -240,101 +302,15 @@ Using Demo Data Files
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.
Creating standalone games
Have you finished the daunting task of removing all dependencies on the Q3
game data? You probably now want to give your users the opportunity to play
the game without owning a copy of Q3, which consequently means removing cd-key
and authentication server checks. In addition to being a straightforward Q3
client, ioquake3 also purports to be a reliable and stable code base on which
to base your game project.
However, before you start compiling your own version of ioquake3, you have to
ask yourself: Have we changed or will we need to change anything of importance
in the engine?
If your answer to this question is "no", it probably makes no sense to build
your own binaries. Instead, you can just use the pre-built binaries on the
website. Just make sure the game is called with:
+set com_standalone 1 +set fs_game <yourgamedir>
in any links/scripts you install for your users to start the game. Note that
the com_standalone setting is rendered ineffective, if the binary detects pk3
files in the directory "baseq3", so you cannot use that one as game dir.
If you really changed parts that would make vanilla ioquake3 incompatible with
your mod, we have included another way to conveniently build a stand-alone
binary. Just run make with the option BUILD_STANDALONE=1. Don't forget to edit
the PRODUCT_NAME and subsequent #defines in qcommon/q_shared.h with
information appropriate for your project.
While a lot of work has been put into ioquake3 that you can benefit from free
of charge, it does not mean that you have no obligations to fulfil. Please be
aware that as soon as you start distributing your game with an engine based on
our sources we expect you to fully comply with the requirements as stated in
the GPL. That includes making sources and modifications you made to the
ioquake3 engine as well as the game-code used to compile the .qvm files for
the game logic freely available to everyone. Furthermore, note that the "QIIIA
Game Source License" prohibits distribution of mods that are intended to
operate on a version of Q3 not sanctioned by id software:
"with this Agreement, ID grants to you the non-exclusive and limited right
to distribute copies of the Software ... for operation only with the full
version of the software game QUAKE III ARENA"
This means that if you're creating a standalone game, you cannot use said
license on any portion of the product. As the only other license this code has
been released under is the GPL, this is the only option.
This does NOT mean that you cannot market this game commercially. The GPL does
not prohibit commercial exploitation and all assets (e.g. textures, sounds,
maps) created by yourself are your property and can be sold like every other
game you find in stores.
cl_guid Support
cl_guid is a cvar which is part of the client's USERINFO string. Its value
is a 32 character string made up of [a-f] and [0-9] characters. This
value is pseudo-unique for every player. Id's Quake 3 Arena client also
sets cl_guid, but only if Punkbuster is enabled on the client.
If cl_guidServerUniq is non-zero (the default), then this value is also
pseudo-unique for each server a client connects to (based on IP:PORT of
the server).
The purpose of cl_guid is to add an identifier for each player on
a server. This value can be reset by the client at any time so it's not
useful for blocking access. However, it can have at least two uses in
your mod's game code:
1) improve logging to allow statistical tools to index players by more
than just name
2) granting some weak admin rights to players without requiring passwords
Help! Ioquake3 won't give me an fps of X anymore when setting com_maxfps!
Ioquake3 now uses the select() system call to wait for the rendering of the
next frame when com_maxfps was hit. This will improve your CPU load
considerably in these cases. However, not all systems may support a
granularity for its timing functions that is required to perform this waiting
correctly. For instance, ioquake3 tells select() to wait 2 milliseconds, but
really it can only wait for a multiple of 5ms, i.e. 5, 10, 15, 20... ms.
In this case you can always revert back to the old behaviour by setting the
cvar com_busyWait to 1.
Using HTTP/FTP Download Support (Server)
You can enable redirected downloads on your server even if it's not
@ -352,7 +328,6 @@ Using HTTP/FTP Download Support (Server)
sv_allowDownload's value is now a bitmask made up of the following
flags:
1 - ENABLE
2 - do not use HTTP/FTP downloads
4 - do not use UDP downloads
8 - do not ask the client to disconnect when using HTTP/FTP
@ -440,25 +415,207 @@ SDL Keyboard Differences
text. Also, in addition to the nominated console keys, Shift-ESC is hard
coded to always toggle the console.
Mouse Input On Windows
ioq3 uses SDL to abstract away as much as possible from platform specific
implementation details. Unfortunately, SDL 1.2 suffers from a number of bugs
and limitations with respect to mouse input on the Windows platform. We
provide a patch against the SDL subversion 1.2 branch which fixes the
following problems:
QuakeLive mouse acceleration (patch and this text written by TTimo from id)
I've been using an experimental mouse acceleration code for a while, and
decided to make it available to everyone. Don't be too worried if you don't
understand the explanations below, this is mostly intended for advanced
players:
To enable it, set cl_mouseAccelStyle 1 (0 is the default/legacy behavior)
* DirectX (and thus DirectInput) driver not functional when using an
OpenGL SDL_Surface.
New style is controlled with 3 cvars:
* DirectX (and thus DirectInput) driver not functional in windowed mode.
sensitivity
cl_mouseAccel
cl_mouseAccelOffset
* Mouse buttons 4-7 unusable with the DirectX driver due to DirectInput 5
not exposing the required functionality. Use DirectInput 7 instead.
The old code (cl_mouseAccelStyle 0) can be difficult to calibrate because if
you have a base sensitivity setup, as soon as you set a non zero acceleration
your base sensitivity at low speeds will change as well. The other problem
with style 0 is that you are stuck on a square (power of two) acceleration
curve.
* Low quality mouse input data when using the windib driver due to use of
WM_MOUSEMOVE events. Use GetCursorPos API call instead.
The new code tries to solve both problems:
The patch can be found in misc/sdl-win32-fixes.diff.
Once you setup your sensitivity to feel comfortable and accurate enough for
low mouse deltas with no acceleration (cl_mouseAccel 0), you can start
increasing cl_mouseAccel and tweaking cl_mouseAccelOffset to get the
amplification you want for high deltas with little effect on low mouse deltas.
cl_mouseAccel is a power value. Should be >= 1, 2 will be the same power curve
as style 0. The higher the value, the faster the amplification grows with the
mouse delta.
cl_mouseAccelOffset sets how much base mouse delta will be doubled by
acceleration. The closer to zero you bring it, the more acceleration will
happen at low speeds. This is also very useful if you are changing to a new
mouse with higher dpi, if you go from 500 to 1000 dpi, you can divide your
cl_mouseAccelOffset by two to keep the same overall 'feel' (you will likely
gain in precision when you do that, but that is not related to mouse
acceleration).
Mouse acceleration is tricky to configure, and when you do you'll have to
re-learn your aiming. But you will find that it's very much forth it in the
long run.
If you try the new acceleration code and start using it, I'd be very
interested by your feedback.
---------------------------------------------------- README for Developers -----
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.
Creating standalone games
Have you finished the daunting task of removing all dependencies on the Q3
game data? You probably now want to give your users the opportunity to play
the game without owning a copy of Q3, which consequently means removing cd-key
and authentication server checks. In addition to being a straightforward Q3
client, ioquake3 also purports to be a reliable and stable code base on which
to base your game project.
However, before you start compiling your own version of ioquake3, you have to
ask yourself: Have we changed or will we need to change anything of importance
in the engine?
If your answer to this question is "no", it probably makes no sense to build
your own binaries. Instead, you can just use the pre-built binaries on the
website. Just make sure the game is called with:
+set com_basegame <yournewbase>
in any links/scripts you install for your users to start the game. The
binary must not detect any original quake3 game pak files. If this
condition is met, the game will set com_standalone to 1 and is then running
in stand alone mode.
If you want the engine to use a different directory in your homepath than
e.g. "Quake3" on Windows or ".q3a" on Linux, then set a new name at startup
by adding
+set com_homepath <homedirname>
to the command line. You can also control which kind of messages to send to
the master server:
+set sv_heartbeat <heartbeat> +set sv_flatline <flatline>
+set cl_gamename <gamename>
The <heartbeat> and <flatline> message can be specific to your game. The
flatline message is sent to signal the master server that the game server is
quitting. Vanilla quake3 uses "QuakeArena-1" both for the heartbeat and
flatline messages.
The cl_gamename message is for dpmaster to specify which game the client
wants a server list for. It is only used in the new ipv6 based getServersExt
query.
Example line:
+set com_basegame basefoo +set com_homepath .foo
+set sv_heartbeat fooalive +set sv_flatline foodead
+set cl_gamename foo
If you really changed parts that would make vanilla ioquake3 incompatible with
your mod, we have included another way to conveniently build a stand-alone
binary. Just run make with the option BUILD_STANDALONE=1. Don't forget to edit
the PRODUCT_NAME and subsequent #defines in qcommon/q_shared.h with
information appropriate for your project.
While a lot of work has been put into ioquake3 that you can benefit from free
of charge, it does not mean that you have no obligations to fulfil. Please be
aware that as soon as you start distributing your game with an engine based on
our sources we expect you to fully comply with the requirements as stated in
the GPL. That includes making sources and modifications you made to the
ioquake3 engine as well as the game-code used to compile the .qvm files for
the game logic freely available to everyone. Furthermore, note that the "QIIIA
Game Source License" prohibits distribution of mods that are intended to
operate on a version of Q3 not sanctioned by id software:
"with this Agreement, ID grants to you the non-exclusive and limited right
to distribute copies of the Software ... for operation only with the full
version of the software game QUAKE III ARENA"
This means that if you're creating a standalone game, you cannot use said
license on any portion of the product. As the only other license this code has
been released under is the GPL, this is the only option.
This does NOT mean that you cannot market this game commercially. The GPL does
not prohibit commercial exploitation and all assets (e.g. textures, sounds,
maps) created by yourself are your property and can be sold like every other
game you find in stores.
Network protocols
There are now two cvars that give you some degree of freedom over the reported
protocol versions between clients and servers: "protocol" and "oldprotocol".
The reason for this is that some standalone games increased the protocol
number even though nothing really changed in their protocol and the ioquake3
engine is still fully compatible.
In order to fix a vulnerability in the network protocol as outlined in
http://aluigi.altervista.org/papers/q3noclient.txt
a new network protocol was introduced that defends against such attacks.
Unfortunately, this protocol will be incompatible to the original quake3 1.32c
which is the latest official release from id.
Luckily, ioquake3 has backwards compatibility, on the client as well as on the
server. This means ioquake3 players can play on old servers just as ioquake3
servers are able to service old clients.
The cvar "protocol" denotes the protocol version for the new hardened
protocol, whereas the "oldprotocol" cvar denotes the protocol version for the
legacy protocol.
If the value for "oldprotocol" and "protocol" is identical, then the legacy
protocol is always used. If oldprotocol is set to 0, then support for the
legacy protocol is disabled.
Mods that use a standalone engine obviously do not require dual protocol
support, and it is turned off if the engine is compiled with STANDALONE per
default. You can enable it in q_shared.h if desired by defining
PROTOCOL_SUPPORT_OLD.
cl_guid Support
cl_guid is a cvar which is part of the client's USERINFO string. Its value
is a 32 character string made up of [a-f] and [0-9] characters. This
value is pseudo-unique for every player. Id's Quake 3 Arena client also
sets cl_guid, but only if Punkbuster is enabled on the client.
If cl_guidServerUniq is non-zero (the default), then this value is also
pseudo-unique for each server a client connects to (based on IP:PORT of
the server).
The purpose of cl_guid is to add an identifier for each player on
a server. This value can be reset by the client at any time so it's not
useful for blocking access. However, it can have at least two uses in
your mod's game code:
1) improve logging to allow statistical tools to index players by more
than just name
2) granting some weak admin rights to players without requiring passwords
PNG support
ioquake3 supports the use of PNG (Portable Network Graphic) images as