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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* vga.c - driver for VGA graphics adaptor under MS-DOS |
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*/ |
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#include <stdio.h> |
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#include "copyright.h" |
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#include "standard.h" |
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#include <graph.h> |
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#include "driver.h" |
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vga_init(name, id) /* open VGA */ |
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char *name, *id; |
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{ |
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static short mode_pref[] = {_XRES256COLOR, _SVRES256COLOR, |
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static short mode_pref[] = {_MRES256COLOR, -1}; |
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static short smode_pref[] = {_XRES256COLOR, _SVRES256COLOR, |
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_VRES256COLOR, _MRES256COLOR, -1}; |
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char *ep; |
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register int i; |
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register short *mp; |
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for (i = 0; mode_pref[i] != -1; i++) |
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if (_setvideomode(mode_pref[i])) |
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mp = !strcmp(name, "vga") ? mode_pref : smode_pref; |
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for ( ; *mp != -1; mp++) |
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if (_setvideomode(*mp)) |
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break; |
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if (mode_pref[i] == -1) { |
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if (*mp == -1) { |
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_setvideomode(_DEFAULTMODE); |
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stderr_v(name); |
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stderr_v(": card not present or insufficient VGA memory\n"); |
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eputs(name); |
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eputs(": card not present or insufficient VGA memory\n"); |
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return(NULL); |
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} |
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_getvideoconfig(&config); |
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_remappalette(1, _BRIGHTWHITE); |
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_settextcolor(1); |
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ms_gcinit(&vga_driver); |
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errvec = vga_errout; |
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cmdvec = vga_comout; |
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if (wrnvec != NULL) |
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wrnvec = vga_comout; |
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erract[USER].pf = |
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erract[SYSTEM].pf = |
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erract[INTERNAL].pf = |
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erract[CONSISTENCY].pf = vga_errout; |
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erract[COMMAND].pf = vga_comout; |
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if (erract[WARNING].pf != NULL) |
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erract[WARNING].pf = vga_comout; |
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return(&vga_driver); |
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} |
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static |
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vga_close() /* close VGA */ |
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{ |
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ms_gcdone(&vga_driver); |
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_setvideomode(_DEFAULTMODE); |
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errvec = stderr_v; /* reset error vectors */ |
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cmdvec = NULL; |
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if (wrnvec != NULL) |
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wrnvec = stderr_v; |
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erract[USER].pf = /* reset error vector */ |
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erract[SYSTEM].pf = |
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erract[INTERNAL].pf = |
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erract[CONSISTENCY].pf = eputs; |
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erract[COMMAND].pf = NULL; |
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if (erract[WARNING].pf != NULL) |
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erract[WARNING].pf = wputs; |
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if (fatalerr[0]) |
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stderr_v(fatalerr); /* repeat error message */ |
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eputs(fatalerr); /* repeat error message */ |
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} |
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