Grx July 2002

grx@gnu.de

5 participants
9 discussions

[Fwd: GRX 2.4.3 makefile.dj2]
by Mariano Alvarez Fernandez 31 Jul '02

31 Jul '02

Hi, this seems to be a problem with gcc 3.1 or a bad DJGPP instalation. Can somebody check it? Thanks, M.Alvarez -------- Original Message -------- Asunto: GRX 2.4.3 makefile.dj2 Fecha: Tue, 30 Jul 2002 18:53:12 +0200 De: "Dr. Peter Prinz" <prinz_peter(a)t-online.de> A: <malfer(a)telefonica.net> Dear M. Alvarez, would you please let me know how to build the GRX-Lib (2.4.3)? Runing 'make -f makefile.dj2 install' results in the following error: gcc -c -O2 -Wall -I. -I./include -I../include -I../addons/print -I../addons/ bmp mouse/mscursor.c -o mouse/mscursor.o In file included from include/libgrx.h:35, from mouse/mscursor.c:22: d:/gnu-c/include/stdio.h:35: conflicting types for `va_list' d:/gnu-c/lib/gcc-lib/djgpp/3.1/include/stdarg.h:110: previous declaration of `va _list' mouse/mscursor.c: In function `GrMouseSetCursorMode': mouse/mscursor.c:166: first argument to `va_arg' not of type `va_list' mouse/mscursor.c:167: first argument to `va_arg' not of type `va_list' mouse/mscursor.c:171: first argument to `va_arg' not of type `va_list' mouse/mscursor.c:172: first argument to `va_arg' not of type `va_list' mouse/mscursor.c:173: first argument to `va_arg' not of type `va_list' Thank You! Best regards, Peter Prinz

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bpp graphics
by Dimitar Zhekov 29 Jul '02

29 Jul '02

Overflow: 1[ul] << 32 == 0, GrSetMode(w, h, 1 << 32) => GrSetMode(w, h, 1) BTW, fontdemo has CR+LF as line separators. How about removing the CRs?

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use suidroot exec
by Dimitar Zhekov 29 Jul '02

29 Jul '02

An option to enable (default) or disable GRX suid root executables. In root mode, everything is as before. In user mode, the drivers that use inport/outport (egavga1, ega4, svga4 and vga8x) are disabled. Tested with 8, 15, 16 and 32bpp, linear and banked (my GeForce3 has no 24bpp, but that shouldn't be a problem). So, if you are ready (like me) to sacrifice the 1 and 4bpp modes for security, edit makedefs.grx and comment out USE_SUIDROOT_EXEC (or set it to 'n'). I wrote fd_svgal (1 and 4bpp) and fd_vgagl (8bpp or more) drivers first, but they were 3 to 30 _times_ slower than the default ones.

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off by one
by Dimitar Zhekov 29 Jul '02

29 Jul '02

While testing fontdemo (which, BTW, works with BCC too) I encountered an off-by-one error in raw font driver for psf without unicode data.

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macroi16.dif -> .zip
by Dimitar Zhekov 29 Jul '02

29 Jul '02

Hi. I was away from keyboard from some time (or at least away from internet). >> Second version og statif16.dif plus some more stuff: >Hi Dimitar. Can you resend me the patch like a zip file?. Attached. >I assume the first patch you sent about is not aplicable If you mean stati16.dif, it works. But the original BCCBGI author, Hartmut Schirmer, proposed using macros instead, and they're really better. So yes, stati16.dif is unapplicable. E-gards: Jimmy

1 0

Small Pascal update
by Frank Heckenbach 19 Jul '02

19 Jul '02

Hi, two of the Pascal demos contain a duplicated type declaration (which the current GPC will flag as an error). This will fix it. --- pascal/bgi/allmodes.pas.orig Sun Oct 7 01:17:54 2001 +++ pascal/bgi/allmodes.pas Fri Jul 19 20:48:49 2002 @@ -15,9 +15,6 @@ uses Graph; -type - WrkString = String[255]; - function MyStr(Numeric, Len: Integer):WrkString; var RetString : WrkString; --- pascal/bgi/demo.pas.orig Sat Dec 22 14:05:18 2001 +++ pascal/bgi/demo.pas Fri Jul 19 20:49:28 2002 @@ -19,9 +19,6 @@ graph, crt; (*$endif*) -type - WrkString = String[255]; - var Test, Corr : Real; @@ -561,4 +558,4 @@ Write ('Press Enter ...'); Readln; end; -end. \ No newline at end of file +end. Secondly, I've heard that the Mingw version of GRX also runs under Cygwin. So the `ifdef __MINGW32__' that I put in the Pascal units (grx.pas and graph.pas) should probably be changed to _WIN32. However, I can't test this myself since I use neither of these systems. Frank -- Frank Heckenbach, frank(a)g-n-u.de http://fjf.gnu.de/ GnuPG and PGP keys: http://fjf.gnu.de/plan (7977168E)

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colori16.dif
by Dimitar Zhekov 11 Jul '02

11 Jul '02

Yet another 16-bit fix for BGI and GRX. GrColor is not used in libbcc.h because including the grx headers is not and should not be a requirement for using GRX's BGI and the GrColor type may be unavailable. Compiled and tested with BCC / DOS only. What if I try to port GRX to BCC / WIN32 after -pre4? diff -Nru3 grx245-1/include/grx20.h grx/include/grx20.h --- grx245-1/include/grx20.h Mon Jun 17 23:13:06 2002 +++ grx/include/grx20.h Wed Jul 10 09:54:56 2002 @@ -135,7 +135,7 @@ /* ================================================================== */ /* need unsigned 32 bit integer for color stuff */ -#ifdef __TURBOC__ +#if defined(__TURBOC__) && defined(__MSDOS__) /* TCC && BCC are 16 bit compilers */ typedef unsigned long int GrColor; #else diff -Nru3 grx245-1/include/libbcc.h grx/include/libbcc.h --- grx245-1/include/libbcc.h Wed Jul 10 10:03:20 2002 +++ grx/include/libbcc.h Wed Jul 10 09:59:36 2002 @@ -339,7 +339,11 @@ extern int __gr_color; /* drawing color */ extern int __gr_colorbg; /* background color */ extern int __gr_colorfill; /* fill color */ -extern int __gr_WR; /* Write mode */ +#if defined(__TURBOC__) && defined(__MSDOS__) +extern unsigned long __gr_WR; /* Write mode, type */ +#else +extern unsigned int __gr_WR; /* must match GrColor */ +#endif extern int __gr_Xasp; /* Aspect ratio */ extern int __gr_Yasp; extern int __gr_fpatno; diff -Nru3 grx245-1/src/bgi/bccgrx.c grx/src/bgi/bccgrx.c --- grx245-1/src/bgi/bccgrx.c Wed Jul 10 10:03:20 2002 +++ grx/src/bgi/bccgrx.c Wed Jul 10 09:59:36 2002 @@ -42,7 +42,7 @@ int __gr_color; /* drawing color */ int __gr_colorbg; /* background color */ int __gr_colorfill; /* fill color */ -int __gr_WR = GrWRITE; /* Write mode */ +GrColor __gr_WR = GrWRITE; /* Write mode */ int __gr_lstyle = SOLID_LINE; /* Actual line style */ int __gr_fpatno = SOLID_FILL; /* Actual filling pattern */ int __gr_Xasp = 10000; /* Aspect ratio */ diff -Nru3 grx245-1/src/bgi/putimage.c grx/src/bgi/putimage.c --- grx245-1/src/bgi/putimage.c Sat Dec 22 14:02:42 2001 +++ grx/src/bgi/putimage.c Wed Jul 10 09:49:54 2002 @@ -40,7 +40,7 @@ void putimage(int left, int top, void *bitmap, int op) { GrContext *gc; - int gr_op; + GrColor gr_op; _DO_INIT_CHECK; GrSetContext(NULL);

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chr\addfonts.bat
by Dimitar Zhekov 11 Jul '02

11 Jul '02

Equivalent of chr/addfonts.sh for BCC. Do not: registerbgifont(&_xxxx_font) more than the free DGROUP (up to 64KB) size fonts. Retain the addfonts.bat line separators to CR, LF. E-gards: Jimmy

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macroi16 test
by Dimitar Zhekov 09 Jul '02

09 Jul '02

I tried to test macroi16.dif under linux as promised, but got problems. Any (_not_ bgi only) grx program attempting to set graphics mode failed with sigsegv. I had the same problem with grx244 too since (_if_ I remebmer correctly) the upgrade to svgalib-1.9.13/devfs. All other svgalib programs (MPlayer, zgv, asteroids) work - the problem is specific to grx programs. This time I decided to build a debug version of grx and see what goes on, but there is another error: make -C src -f makefile.lnx make[1]: Entering directory `/tmp/grx/src' gcc -o ../bin/fnt2c utilprog/fnt2c.o ../lib/unix/libgrx20.a ../lib/unix/libgrx20.a(lnxinput.o): In function `GrMouseDetect': /tmp/grx/src/mouse/lnxinput.c:337: undefined reference to `vga_getmousetype' /tmp/grx/src/mouse/lnxinput.c:337: undefined reference to `mouse_init_return_fd' /tmp/grx/src/mouse/lnxinput.c:344: undefined reference to `mouse_close' <more undefined references> collect2: ld returned 1 exit status make[1]: *** [../bin/fnt2c] Error 1 make[1]: Leaving directory `/tmp/grx/src' make: *** [libs] Error 2 This can be quickly fixed by a: ifdef DEBUG $(UTILP): ../bin/% : utilprog/%.o $(GRX20ST) $(CC) -o $@ utilprog/$*.o $(GRX20ST) -lvga -lm $(STRIP) $@ else $(UTILP): ../bin/% : utilprog/%.o $(GRX20ST) $(CC) -o $@ utilprog/$*.o $(GRX20ST) $(STRIP) $@ endif in src/makefile.lnx, but you'll probably want to do better than that (the non-debug version builds normally). Now here is the signal bt: #0 0x40167df4 in ioctl () from /lib/libc.so.6 #1 0x4006bfcc in __svgalib_rendition_driverspecs () from /usr/lib/libvga.so.1 #2 0x080533f4 in inkey () at mouse/lnxinput.c:199 #3 0x0805366d in _GrCheckKeyboardHit () at mouse/lnxinput.c:281 #4 0x0805d5a1 in _GR_debug_printf (fmt=0x0) at utils/dbgprint.c:57 #5 0x0805925f in buildcontext (mp=0xbffff860, fdp=0xbffff880, cxt=0xbffff8e0) at setup/setmode.c:179 #6 0x080594b7 in GrSetMode (which=GR_custom_graphics) at setup/setmode.c:371 #7 0x0804fd44 in setgraphmode (mode=0) at bgi/bccgrx.c:408 #8 0x0804fed3 in __gr_initgraph (graphdriver=0x808046c, graphmode=0x0) at bgi/bccgrx.c:435 #9 0x0804ff7e in initgraph (graphdriver=0x0, graphmode=0x0, pathtodriver=0x0) at bgi/bccgrx.c:471 #10 0x08049c09 in Initialize () at bccbgi.c:279 #11 0x0804ee2e in main () at bccbgi.c:2196 #12 0x400b1541 in __libc_start_main () from /lib/libc.so.6 bgilink works normally. When using the debug version of grx, all programs display a blank screen, wait for esc to be hit and leave normally instead of immediately aborting with sigsegv (seems that sigsegv is trapped). E-gards: Jimmy

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Grx July 2002