| 1 | |
| 2 | /* Copyright (c) 1995, 1997, 1998, 1999, 2000, 2002 by Arkkra Enterprises */ |
| 3 | /* All rights reserved */ |
| 4 | |
| 5 | /* initialization table and routine for Mup/Ghostscript display program */ |
| 6 | |
| 7 | /* when adding support for additional terminal types, you will need to |
| 8 | * add the declarations of relevant functions and add an entry to the |
| 9 | * Config table */ |
| 10 | |
| 11 | |
| 12 | #include <string.h> |
| 13 | #include <stdlib.h> |
| 14 | #include "mupdisp.h" |
| 15 | |
| 16 | /* declare the functions, etc for each supported terminal type */ |
| 17 | |
| 18 | #ifdef XWINDOW |
| 19 | extern void parse_X_options P((void)); |
| 20 | extern void xterm_setup P((void)); |
| 21 | extern void xterm_cleanup P((int status)); |
| 22 | extern void xterm_draw P((int line, int small)); |
| 23 | extern void xterm_user_interf P((void)); |
| 24 | extern void xterm_error P((char *msg)); |
| 25 | extern void xterm_raster P((unsigned char *bitmap, int width, int height)); |
| 26 | #define XVIDLINES (400) /* request 400 lines when in 640x480 mode */ |
| 27 | #endif |
| 28 | |
| 29 | #if defined(AT386) && ! defined(__DOS__) |
| 30 | extern void at386_setup P((void)); |
| 31 | extern void at386_cleanup P((int status)); |
| 32 | extern void at386_draw P((int line, int small)); |
| 33 | extern void at386_user_interf P((void)); |
| 34 | extern void at386_error P((char *msg)); |
| 35 | extern void at386_raster P((unsigned char *bitmap, int width, int height)); |
| 36 | #define VIDLINES (350) /* for 640x350 display mode */ |
| 37 | #endif |
| 38 | |
| 39 | #if defined(linux) && ! defined(NO_VGA_LIB) |
| 40 | extern void vgalib_setup P((void)); |
| 41 | extern void vgalib_cleanup P((int status)); |
| 42 | extern void vgalib_draw P((int line, int small)); |
| 43 | extern void vgalib_user_interf P((void)); |
| 44 | extern void vgalib_error P((char *msg)); |
| 45 | extern void vgalib_raster P((unsigned char *bitmap, int width, int height)); |
| 46 | #define LINVGAVIDLINES (480) /* for 640x480 display mode */ |
| 47 | #endif |
| 48 | |
| 49 | #ifdef __WATCOMC__ |
| 50 | extern void dos_setup P((void)); |
| 51 | extern void dos_cleanup P((int status)); |
| 52 | extern void dos_draw P((int line, int small)); |
| 53 | extern void dos_user_interf P((void)); |
| 54 | extern void dos_error P((char *msg)); |
| 55 | extern void dos_raster P((unsigned char *bitmap, int width, int height)); |
| 56 | /* video lines determined at run time */ |
| 57 | #endif |
| 58 | \f |
| 59 | |
| 60 | |
| 61 | /* list of supported $TERM types and which functions and parameters to use |
| 62 | * to implement them. To support a new terminal type, write appropriate |
| 63 | * functions, and add to the Config table. |
| 64 | */ |
| 65 | struct CONFIG Config [] = { |
| 66 | |
| 67 | #if defined(AT386) && ! defined(__DOS__) |
| 68 | { |
| 69 | "AT386", /* terminal type name */ |
| 70 | at386_setup, /* setup function */ |
| 71 | at386_cleanup, /* cleanup function */ |
| 72 | at386_draw, /* function for drawing a screen full of bits */ |
| 73 | at386_user_interf, /* function to read user input and call do_cmd on it */ |
| 74 | at386_error, /* error reporting function */ |
| 75 | at386_raster, /* function to display a raster bitmap centered on screen */ |
| 76 | VIDLINES, /* screen vertical lines */ |
| 77 | 0.75 /* aspect ratio */ |
| 78 | }, |
| 79 | #endif |
| 80 | |
| 81 | #ifdef XWINDOW |
| 82 | { |
| 83 | "xterm", /* terminal type name */ |
| 84 | xterm_setup, /* setup function */ |
| 85 | xterm_cleanup, /* cleanup function */ |
| 86 | xterm_draw, /* function for drawing a screen full of bits */ |
| 87 | xterm_user_interf, /* function to read user input and call do_cmd on it */ |
| 88 | xterm_error, /* error reporting function */ |
| 89 | xterm_raster, /* function to display a raster bitmap centered on screen */ |
| 90 | XVIDLINES, /* screen vertical lines */ |
| 91 | 1.0 /* aspect ratio */ |
| 92 | }, |
| 93 | #endif |
| 94 | |
| 95 | #if defined(linux) && ! defined(NO_VGA_LIB) |
| 96 | { |
| 97 | "linux", /* terminal type name */ |
| 98 | vgalib_setup, /* setup function */ |
| 99 | vgalib_cleanup, /* cleanup function */ |
| 100 | vgalib_draw, /* function for drawing a screen full of bits */ |
| 101 | vgalib_user_interf, /* function to read user input and call do_cmd on it */ |
| 102 | vgalib_error, /* error reporting function */ |
| 103 | vgalib_raster, /* function to display a raster bitmap centered on screen */ |
| 104 | LINVGAVIDLINES, /* screen vertical lines */ |
| 105 | 1.0 /* aspect ratio */ |
| 106 | }, |
| 107 | |
| 108 | #endif |
| 109 | #ifdef __WATCOMC__ |
| 110 | { |
| 111 | "DOS", /* terminal type name */ |
| 112 | dos_setup, /* setup function */ |
| 113 | dos_cleanup, /* cleanup function */ |
| 114 | dos_draw, /* function for drawing a screen full of bits */ |
| 115 | dos_user_interf, /* function to read user input and call do_cmd on it */ |
| 116 | dos_error, /* error reporting function */ |
| 117 | dos_raster, /* function to display a raster bitmap centered on screen */ |
| 118 | 0, /* screen vertical lines--will get set at run time */ |
| 119 | 0.0 /* aspect ratio adjust--will get set at run time */ |
| 120 | } |
| 121 | #endif |
| 122 | }; |
| 123 | \f |
| 124 | |
| 125 | /* initialize. Make sure TERM is supported, and set up for it. */ |
| 126 | |
| 127 | void |
| 128 | init() |
| 129 | |
| 130 | { |
| 131 | struct CONFIG *c_p; /* terminal configuration info */ |
| 132 | char *termname; /* $TERM */ |
| 133 | int numtypes; |
| 134 | #ifdef XWINDOW |
| 135 | struct CONFIG *xwindow_conf_p = 0; /* info for running under X */ |
| 136 | #endif |
| 137 | |
| 138 | |
| 139 | #ifdef __WATCOMC__ |
| 140 | termname = "DOS"; |
| 141 | #else |
| 142 | if ((termname = getenv("TERM")) == NULL) { |
| 143 | fprintf(stderr, "can't determine $TERM\n"); |
| 144 | generalcleanup(1); |
| 145 | } |
| 146 | #endif |
| 147 | |
| 148 | /* find appropriate functions to use based on terminal type */ |
| 149 | numtypes = sizeof(Config) / sizeof(struct CONFIG); |
| 150 | for (c_p = Config; numtypes > 0; c_p++, numtypes--) { |
| 151 | if (strcmp(c_p->termname, termname) == 0) { |
| 152 | Conf_info_p = c_p; |
| 153 | break; |
| 154 | } |
| 155 | #ifdef XWINDOW |
| 156 | /* save the xwindow config. If we don't find a |
| 157 | * matching terminal type here, we're try some other |
| 158 | * tricks later to guess if we're running under X */ |
| 159 | if (strcmp(c_p->termname, "xterm") == 0) { |
| 160 | xwindow_conf_p = c_p; |
| 161 | } |
| 162 | #endif |
| 163 | } |
| 164 | |
| 165 | #ifdef XWINDOW |
| 166 | if (Conf_info_p == (struct CONFIG *) 0) { |
| 167 | /* There can be several variations on xterm, so |
| 168 | * if $TERM at least starts with xterm, consider that |
| 169 | * good enough to try. And to try even harder to |
| 170 | * recognize if we're probably running under X, and |
| 171 | * thus the 'xterm' type will probably work, check if |
| 172 | * $DISPLAY is set. Chances are, if it is, we're probably |
| 173 | * in X. If it turns out we're not, we'll fail eventually, |
| 174 | * but we will have at least tried pretty hard |
| 175 | * to find something that would work... */ |
| 176 | if (strncmp(termname, "xterm", 5) == 0 || |
| 177 | getenv("DISPLAY") != (char *) 0) { |
| 178 | Conf_info_p = xwindow_conf_p; |
| 179 | } |
| 180 | } |
| 181 | #endif |
| 182 | |
| 183 | /* Make sure we managed to find a $TERM we can work with */ |
| 184 | if (Conf_info_p == (struct CONFIG *) 0 ) { |
| 185 | fprintf(stderr, "$TERM type not supported\n"); |
| 186 | generalcleanup(1); |
| 187 | } |
| 188 | |
| 189 | #ifdef XWINDOW |
| 190 | /* X has some extra options, so handle them */ |
| 191 | if (strcmp(Conf_info_p->termname, "xterm") == 0) { |
| 192 | parse_X_options(); |
| 193 | } |
| 194 | #endif |
| 195 | } |