GRX graphics library
NEW: GRX v2.3.1 (= GRX v2.3 with the patch below
and some bugfixes) has been uploaded on 22 June 2000. See our
download page for details.
A patch for updating GRX v2.3 has been uploaded on 12
June 2000. This patch contains - among other bugfixes - necessary updates for
GRX v2.3 to work correctly with newer releases of GCC. It also integrates
BCC2GRX into GRX. Get it from here:
To apply the patch, cd to the GRX source directory and then type:
zcat grx23.update.000520.gz | patch -p1 -l
This has to be done to a fresh GRX source installation,
i.e. after unzipping grx23.zip.
The latest official public release GRX v2.3 is available from
this site and soon from SimTel.Net
or its mirrors.
Make sure you get all three files (grx23.zip,
grx23fnt.zip and grx23rme.1st) and carefully read the
instructions below and in grx23rme.1st before
A detailed changelog is available
Currently GRX directly supports the following platforms:
- Thomas Hahn ported GRX to DEC alpha systems
- Ulrich Leodolter contributed his latest X11 driver. Several X11
problems (readpixel, color handling in pseudo color mode) should be
fixed now. Additionally GRX will run on X11R5 systems now.
- Vincenzo Morello contributed the addons/ctx2jpeg source
- Andris Pavenis contributed the memory driver and the addons/print
- Gary Sands ported GRX to Watcom C++ (32bit, V11.0, other versions
- Michal Stencl contributed the image handling code and the
- code portability has be greatly enlarged. GRX should be easily
portable to new compilers now.
- BCC port should now work on all Borland 16bit compilers
(Tested with BCC 2.0, 3.1 and 4.52)
- GRX will work on big endian systems (sparc)
- GRX has 64bit support
- GRX uses a more flexible scheme for temporary memory allocation
now. Depending system and the SMALL_STACK switch either alloca
or malloc will be used. GRX allocates an internal buffer for
blit blits, scanline return, etc now
- GRX supports a platform independent keyboard interface
- Nearly all frame drivers have be optimized for performance
- On Linux systems GRX can be build as shared lib
- New GRX functions:
GRX should work on any X11R5 (or later) system after a few changes in
makedefs.gnu and makedefs.x11.
||GCC 2.6.3, 2.7.2, 2.8.1
||BCC 2.0, 3.1, 4.52; 16bit only
||v11.0; 32bit only
||GCC 2.7.2, 2.8.1
||GCC 2.7.2, 2.8.1
||GCC 2.7.2, SUN cc v4.1
Most makefiles (DJGPP and Unix systems) require GNU make
- create a directory for the GRX file tree. Examples:
- unzip the GRX source archive in the GRX dir:
||pkunzip -d grx23.zip|
- unzip the GRX font archive in the same base dir:
||pkunzip -d grx2fnt.zip|
This is only required if there's no pre-compiled GRX for your system
or you want to change GRX or the library configuration.
- set the default driver and graphics mode info:
SET GRX20DRV=<driver> gw <width> gh <height> nc <colors>
(very useful but not required)
Available drivers for
||stdvga, stdega, et4000, cl5426, mach64, ati28800, VESA, memory|
||svgalib, xwin, memory|
- set the GRX font dir
SET GRXFONT=<directory for the GRX fonts>
This is required for GRX graphics text output. Path: <GRX
||You can define a default font directory when compiling GRX.
E.g, if you installed the fonts in /usr/local/lib/grx/fonts add|
CCOPT += -DGRX_DEFAULT_FONT_PATH="/usr/local/lib/grx/fonts"
to makedefs.gnu (Linux / GNU-make example)
- Go to GRX base dir and check the makefile and makedefs file
for your system setup
- Switch to src sub dir and check the makefile
- run make -f <your makefile>
(some system may need additional arguments here !)
- if every thing worked fine go to <GRX base>/test,
check the makefile and build all test files / examples:
make -f <your makefile>
You'll either need to copy some GRX files to places where your compiler
will find them (1) or to change your compiler setup so it will find the GRX
files in their default place (2).
- go to <GRX base>/bin and run the modetest program. If you don't have
a modetest (or modtst16) binary, do need to compile GRX first.
- Build and run the other examples (see above)
Due to slight changes in grx20.h you'll have to recompile
your programs. Just relinking it won't work in most cases.
Some information for older GRX version is still available. See GRX v2.2
If you have problems installing or running GRX check this site
(http://www.gnu.de/software/GRX/) for updates, pre-compiled
libs, ... first.
- Copy the library from <GRX base>/lib/<your system> to the compiler
Copy the header files from <GRX base>/include to your compiler include
- See compiler documentation. Either change the default compiler behavior
(eg., change djgpp.env) or use command line switches to tell the
compiler where to find the GRX files.
Check out the known problems with the
current release before reporting a problem or bug
If this doesn't help, check your system/compiler FAQ (eg., the DJGPP
v2 FAQ is at http://www.delorie.com/djgpp/v2faq/)
Check out the DJGPP newsgroup comp.os.msdos.djgpp
(archive at http://www.delorie.com/djgpp/mail-archives/)
Send a problem report to the GRX mailing list, to comp.os.msdos.djgpp or directly
email me at email@example.com.
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Last modified: Mon Aug 10 21:00:00 MET DST 1998