Grx April 2003

grx@gnu.de

6 participants
7 discussions

Problem with GRX/RHIDE/Win98
by Hugo Simon 30 Apr '03

30 Apr '03

Hi, I just startet to play with the GRX library for DOS (DJGPP). Looks fine for me, but I have a small problem. For development I would like to use DJGPP under Win98. I did this before with the Allegro library without any problems. When I start a graphics application (even a hello world programm) using GRX from RHIDE the program runs fine but after ending Win98 says that "this application cannot be run in window mode", crashing the whole RHIDE programm. I can switch to fullscreen before starting my application but then after a few runs the linker gets stuck with "too many open files". Can you give me some advice how to solve that? Thank you Thorsten

3 5

Re: Problem with GRX/RHIDE/Win98
by Dimitar Zhekov 30 Apr '03

30 Apr '03

>> Your Win~1 (or the video driver, doesn't matter) does not >> fully support graphics programs running in a window. > I tried VESA and I tried VGA, all the same. But that Windows > generally does not support graphics [...] isn't true. I have that very problem from the time when vpic (remember?) was the best picture viewer for any MSDOS based systems. The VGA-mode GIF-s were OK, but any JPEG-s terminated vpic with an "This application can not be run in windowed mode" error. > But there is something more wrong. If I use GRX two times > within RHide, I cannot link anymore. The linker says "memory > exhausted" and I have to end and restart RHide. [...] So I > think somehow GRX does not clean up it's resources very good. That may well be. I'm using a command-line "make" (bcc, djgpp and mingw) under Win~1, and everything works fine. Can you please debug GRX? BTW, keep in mind that Win~1 looses DPMI selectors at a _very_ high rate (see djgpp docs) and cleanups them on application exit only - could that be your problem? -- E-gards: Jimmy

1 0

Touch Screen
by subs＠saintrochtree.com 17 Apr '03

17 Apr '03

Hello all, I write a software with DJGPP DOS and GRX. It uses a touch screen from Elo. The Elo driver handle mickeys. How can I disable mickeys in GRX's mouse library and use absolute value ? Thanks for your help. Michel

1 0

Refresh problem on Linux/X11
by Waldek Hebisch 15 Apr '03

15 Apr '03

I have the following problem: when a window is obscured and then made visible again the obscured part is lost. I have tried grx245 and grx246 on Debian Woody with KDE. The problem vanishes when the display is redirected to a machine which uses fvwm as a window manager. I long I can see the only effort grx makes to make display persistent is to request backing store. My impression was that backing store is always optional. For my own simple program I used pixmap as a window background and directed all drawing to that pixmap -- it works on the machine where grx method failed. So the question is if grx method to avoid refresh should be changed? -- Waldek Hebisch hebisch(a)math.uni.wroc.pl or hebisch(a)hera.math.uni.wroc.pl

2 1

small test fixes
by Dimitar Zhekov 08 Apr '03

08 Apr '03

test/demogrx.c: Now that GrLoadFont() can safely be used before GrSetMode(), load lucb21.fnt and lucb40b.fnt before switching to graphics mode. This eliminates the need to switch back to text mode when aborting because of a missing font, i.e. disaster(). linetest.c: don't #include <pc.h> if __DJGPP__, that's pointless speedtst.c: use fgets() instead of getch() when in text mode test.c: don't declare the old style keyboard I/O getch() and kbhit() functions - someone with watcom C, please verify if this was the only reason for including <conio.h> in __WATCOMC__; use fgets() instead of getch() when in text mode, as in speedtst.c textpatt.c: Simplified p1/p2/font conditions - we're not using ADA, so if(pointer) and if(!pointer) should be valid tests even if the pointer has been free()-d; also, no ordinary GRX function can (or should be able to) set it's pointer argument to NULL. -- E-gards: Jimmy

1 0

bcc cleanall sync
by Dimitar Zhekov 08 Apr '03

08 Apr '03

makefile.bcc: add a cleanall target, as in the other makefiles src/makefile.bcc: sync clean/cleanall with the other makefiles -- E-gards: Jimmy

1 0

GRX 2.4.6 pre-release 3
by Mariano Alvarez Fernandez 05 Apr '03

05 Apr '03

Hi, I have uploaded a new pre-release of GRX 2.4.6, big changes: - Included the new Dimitar's DGA2 video driver, experimental, not compiled by default (Indeed it doesn't work in my ssytem, Xfree86 4.2 and Vodoo 3, the screen is blanked and nothing happens). - New Win32 framedrivers. Using the Thomas idea about the DIB, Josu Onandia and I have written new 8bpp and 24bpp framedrivers based on the standard LFB drivers. Now the Win32 GRX version run very fast and doesn't suffer the bugs that the old framedrivers had. http://grx.gnu.de/more.html Enjoy, M.Alvarez

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Grx April 2003