Annotation of OpenXM_contrib/gnuplot/term/pc.trm, Revision 1.1.1.2
1.1 maekawa 1: /*
1.1.1.2 ! maekawa 2: * $Id: pc.trm,v 1.12 1998/12/14 18:40:51 lhecking Exp $
1.1 maekawa 3: *
4: */
5:
6: /* GNUPLOT - pc.trm */
7:
8: /*[
9: * Copyright 1990 - 1993, 1998
10: *
11: * Permission to use, copy, and distribute this software and its
12: * documentation for any purpose with or without fee is hereby granted,
13: * provided that the above copyright notice appear in all copies and
14: * that both that copyright notice and this permission notice appear
15: * in supporting documentation.
16: *
17: * Permission to modify the software is granted, but not the right to
18: * distribute the complete modified source code. Modifications are to
19: * be distributed as patches to the released version. Permission to
20: * distribute binaries produced by compiling modified sources is granted,
21: * provided you
22: * 1. distribute the corresponding source modifications from the
23: * released version in the form of a patch file along with the binaries,
24: * 2. add special version identification to distinguish your version
25: * in addition to the base release version number,
26: * 3. provide your name and address as the primary contact for the
27: * support of your modified version, and
28: * 4. retain our contact information in regard to use of the base
29: * software.
30: * Permission to distribute the released version of the source code along
31: * with corresponding source modifications in the form of a patch file is
32: * granted with same provisions 2 through 4 for binary distributions.
33: *
34: * This software is provided "as is" without express or implied warranty
35: * to the extent permitted by applicable law.
36: ]*/
37:
38: /*
39: * This file is included by ../term.c.
40: *
41: * This terminal driver supports:
42: * Under Microsoft C
43: * cga, egabios, egalib, vgabios, hercules, corona325, att
44: * Under Turboc C
45: * cga, ega/vga, vgamono, svga, mcga, hercules, att
46: * Under Watcom C
47: * cga, ega/vga, vgamono, svga, mcga, hercules, ???
48: *
49: * AUTHORS
50: * Colin Kelley, Thomas Williams, William Wilson, Russell Lang
51: * modified by David J. Liu (liu@csb.yale.edu) for version 3.6
52: *
53: * send your comments or suggestions to (info-gnuplot@dartmouth.edu).
54: *
55: * Because only one compiler is used to generate gnuplot.exe
56: * and the type of the single graphics board is auto-detected,
57: * we can combine all these parts into one terminal type: PC
58: * and let the computer take care of the rest. -- DJL
59: *
60: * Since I don't have MicroSoft C, I assume it would define MSC.
61: * Please correct it if you are using MS C. Thank you. -- DJL
62: *
63: */
64:
65: /*
66: * adapted to the new terminal layout by Stefan Bodewig (Dec. 1995)
67: */
68:
69: #include "driver.h"
70:
71: #ifdef TERM_REGISTER
72: register_term(dospc)
73: #endif
74:
75: #ifdef TERM_PROTO
76: TERM_PUBLIC void PC_text __PROTO((void));
77: TERM_PUBLIC void PC_reset __PROTO((void));
78: TERM_PUBLIC void PC_init __PROTO((void));
79: TERM_PUBLIC void PC_graphics __PROTO((void));
80: TERM_PUBLIC void PC_linetype __PROTO((int linetype));
81: TERM_PUBLIC void PC_move __PROTO((int x, int y));
82: TERM_PUBLIC void PC_vector __PROTO((int x, int y));
83: TERM_PUBLIC void PC_put_text __PROTO((int x, int y, char *str));
84: TERM_PUBLIC int PC_text_angle __PROTO((int ang));
85: TERM_PUBLIC int PC_justify_text __PROTO((enum JUSTIFY ang));
86:
87: #define PC_HCHAR FNT5X9_HCHAR
88: #define PC_VCHAR FNT5X9_VCHAR
89: #define PC_HTIC 5
90: #define PC_VTIC 4
91: #define PC_XMAX 100 /* These two entries are just place holders. */
92: #define PC_YMAX 100 /* The actual values will be found in init. */
93: #endif /* TERM_PROTO */
94:
95: #ifndef TERM_PROTO_ONLY
96: #ifdef TERM_BODY
97:
98: #ifdef __TURBOC__
99: static int huge detect_svga __PROTO((void));
100: #endif /* __TURBOC__ */
101:
102: #include <string.h>
103: #include <stdlib.h>
104: #ifdef __TURBOC__
105: #include <graphics.h>
106: #include <conio.h>
107: #include <dos.h>
108: #endif /* __TURBOC__ */
109: #ifdef __WATCOMC__
110: #include <graph.h>
111: #endif /* WATCOMC */
112: #ifdef MSC
113: #include "mcega.h"
114: #endif /* MSC */
115:
116: static int pattern[] ={ 0xffff, 0x0f0f, 0xffff, 0xaaaa, 0x3333, 0x3f3f, 0x0f0f };
117: static int vga_color[] ={ 7, 8, 2, 3, 4, 5, 9, 14, 12, 15, 13, 10, 11, 1, 6 };
118:
119: static int pc_driver, pc_mode;
120: static int graphics_on = FALSE, pc_graphics = FALSE;
121: static int startx, starty, pc_lastx, pc_lasty, pc_colors;
122: static int pc_angle, pc_hjustify, pc_vjustify, pc_text_size, pc_text_dir, pc_corscreen = -1;
123:
124:
125: #ifdef __TURBOC__
126: extern int far _Cdecl SVGA_driver_far[];
127: #endif /* __TURBOC__ */
128:
129: #ifdef __WATCOMC__
130: enum {
131: HORIZ_DIR, VERT_DIR
132: };
133: static void _settextang(ang)
134: int ang;
135: {
136: if (ang == HORIZ_DIR) {
137: _settextorient(1, 0);
138: } else {
139: _settextorient(0, 1);
140: }
141: }
142: #endif /* WATCOMC */
143:
144: static int huge detect_svga(void)
145: {
146: return 0; /* the default mode, just a place holder */
147: }
148:
149: void PC_setup()
150: { /* called from the beginning of main() */
151: int i, t, x, y;
152: char pc_modename[9];
153: #ifdef __WATCOMC__
154: struct videoconfig VC;
155: #endif /* WATCOMC */
156:
157: /* First link all BRI dribers, then detect the display card. */
158: /* If environment PCTRM is set, try initiate the card/mode. */
159:
160: /* special instruction on mode */
161: safe_strncpy(pc_modename, getenv("PCTRM"), 8);
162:
163: #ifdef __TURBOC__
164: /* Some of this code including BGI drivers are copyright Borland Intl. */
165: registerfarbgidriver(EGAVGA_driver_far);
166: registerfarbgidriver(CGA_driver_far);
167: registerfarbgidriver(Herc_driver_far);
168: registerfarbgidriver(ATT_driver_far);
169: registerfarbgidriver(PC3270_driver_far);
170: pc_driver = DETECT;
171: detectgraph(&pc_driver, &pc_mode);
172: if (graphresult()) {
173: fputs("Unable to initialize graphics.\n", stderr);
174: return;
175: }
176: #ifdef BGI_NAME
177: /* the highest standard pc_driver value, see graphics.h */
178: #define LAST_BGI 10
179: /* the last mode of the SVGA.BGI */
180: #define LAST_SVGA_MODE 6
181: /* test SVGA if we have VGA */
182: if ((pc_driver == VGA) && (pc_modename[0] == 'S')) {
183: installuserdriver(BGI_NAME, &detect_svga);
184: registerfarbgidriver(SVGA_driver_far);
185: pc_driver = DETECT;
186: initgraph(&pc_driver, &pc_mode, "");
187: /* The following code, which is independent of the actual SVGA.BGI
188: * used, tries to find a mode of width defined in the environment
189: * variable PCTRM */
190: if (pc_driver > LAST_BGI) { /* success */
191: sscanf(pc_modename, "S%d", &t);
192: switch (t) {
193: case 800:
194: break; /* S800 */
195: case 1024:
196: break; /* S1024 */
197: case 1280:
198: break; /* S1280 */
199: default:
200: t = 640; /* 640x480 */
201: }
202: for (i = 0; i <= LAST_SVGA_MODE; i++) {
203: setgraphmode(i);
204: if ((getmaxx() + 1 == t) && (getmaxcolor() > 14))
205: pc_mode = i;
206: }
207: setgraphmode(pc_mode);
208: if (graphresult()) { /* error, go back to VGA */
209: pc_driver = VGA;
210: pc_mode = 4;
211: }
212: }
213: } /* SVGA tested */
214: if (pc_driver <= LAST_BGI)
215: #endif /* BGI_NAME */
216: initgraph(&pc_driver, &pc_mode, "");
217: pc_colors = getmaxcolor() + 1;
218: pc_lastx = getmaxx();
219: pc_lasty = getmaxy();
220: restorecrtmode();
221: clrscr();
222: #endif /* __TURBOC__ */
223: #ifdef __WATCOMC__
224: _getvideoconfig(&VC);
225: if ((pc_driver = VC.adapter) == 0) {
226: fprintf(stderr, "Unable to initialize graphics.\n");
227: return;
228: }
229: switch (pc_driver = VC.adapter) {
230: case _HERCULES:
231: pc_mode = _HERCMONO;
232: break;
233: case _CGA:
234: pc_mode = _HRESBW;
235: break;
236: case _MCGA:
237: pc_mode = _MRES256COLOR;
238: break;
239: case _EGA:
240: pc_mode = (VC.monitor == _MONO ? _ERESCOLOR : _ERESNOCOLOR);
241: break;
242: case _VGA:
243: pc_mode = _VRES16COLOR;
244: break;
245: case _SVGA:
246: if (pc_modename[0] == 'S') { /* test SVGA resolution */
247: sscanf(pc_modename, "S%d", &t);
248: switch (t) {
249: case 800:
250: pc_mode = _SVRES256COLOR;
251: break; /* S800 */
252: case 1024:
253: pc_mode = _XRES256COLOR;
254: break; /* S1024 */
255: case 1280:
256: pc_mode = _XRES256COLOR + 2;
257: break; /* S1280 */
258: /* Someone help me, who knows, how a newer Watcom calls that */
259: default:
260: t = 640;
261: pc_mode = _VRES256COLOR; /* 640x480 */
262: }
263: while (_setvideomode(pc_mode) == 0)
264: pc_mode--;
265: }
266: break;
267: default:
268: fputs("Unable to initialize graphics.\n", stderr);
269: return;
270: }
271: _setvideomode(pc_mode);
272: _getvideoconfig(&VC);
273: pc_lastx = VC.numxpixels - 1;
274: pc_lasty = VC.numypixels - 1;
275: pc_colors = VC.numcolors;
276: _setvideomode(_DEFAULTMODE);
277: #endif /* WATCOMC */
278: x = pc_lastx + 1;
279: y = pc_lasty + 1;
280: fprintf(stderr, "\tScreen of %d x %d pixels and %d colors.\n",
281: x, y, pc_colors);
282: pc_graphics = TRUE;
283: }
284:
285: TERM_PUBLIC void PC_init()
286: {
287: char *pathp;
288: #ifdef __WATCOMC__
289: struct _fontinfo fi;
290: #endif
291:
292: if (!pc_graphics) {
293: fputs("Unable to initialize graphics.\n", stderr);
294: term = 0;
295: return;
296: }
297: /* Double the tic/font sizes. */
298: pc_text_size = (pc_lasty > 590) ? 2 : 1;
299: term->h_char = PC_HCHAR;
300: term->v_char = PC_VCHAR;
301: term->h_tic = PC_HTIC * pc_text_size;
302: term->v_tic = PC_VTIC * pc_text_size;
303: term->xmax = pc_lastx + 1;
304: term->ymax = pc_lasty + 1;
305: #ifdef __TURBOC__
306: setgraphmode(pc_mode);
307: settextstyle(DEFAULT_FONT, HORIZ_DIR, pc_text_size);
308: settextjustify(pc_hjustify, pc_vjustify);
309: term->h_char = textheight("X"); /* overriding the default */
310: term->v_char = textwidth("X"); /* overriding the default */
311: #endif /* __TURBOC__ */
312: #ifdef __WATCOMC__
313: _setvideomode(pc_mode);
314: _settextang(HORIZ_DIR);
315: _settextalign(pc_hjustify, pc_vjustify);
316: _setcharsize(pc_text_size * PC_HCHAR, pc_text_size * PC_VCHAR);
317: _getfontinfo(&fi);
318: term->h_char = fi.avgwidth;
319: term->v_char = fi.pixheight * 1.5;
320: #endif /* WATCOMC */
321: #ifdef MSC
322: #endif /* MSC */
323: }
324:
325: TERM_PUBLIC void PC_graphics()
326: {
327: graphics_on = TRUE;
328: #ifdef __TURBOC__
329: setgraphmode(pc_mode);
330: #endif /* __TURBOC__ */
331: #ifdef __WATCOMC__
332: _setvideomode(pc_mode);
333: #endif /* WATCOMC */
334: #ifdef MSC
335: if (pc_corscreen == -1)
336: Vmode(18); /* VGA */
337: else {
338: grinit(corscreen);
339: grandtx();
340: } /* corolla */
341: #endif /* MSC */
342: }
343:
344: TERM_PUBLIC void PC_linetype(linetype)
345: {
346: if (pc_colors > 14) { /* 16 or more colors */
347: if (linetype >= 13)
348: linetype %= 13;
349: #ifdef __TURBOC__
350: setcolor(vga_color[linetype + 2]);
351: #endif /* __TURBOC__ */
352: #ifdef __WATCOMC__
353: _setcolor(vga_color[linetype + 2]);
354: #endif /* WATCOMC */
355: #ifdef MSC
356: #endif /* MSC */
357: } else { /* MONO */
358: if (linetype >= 5)
359: linetype %= 5;
360: #ifdef __TURBOC__
361: setlinestyle(4, pattern[linetype + 2], 1);
362: #endif /* __TURBOC__ */
363: #ifdef __WATCOMC__
364: _setlinestyle(pattern[linetype + 2]);
365: #endif /* WATCOMC */
366: #ifdef MSC
367: if (pc_corscreen != -1)
368: Cor_mask(pattern[linetype + 2]);
369: #endif /* MSC */
370: }
371: }
372:
373: TERM_PUBLIC void PC_move(x, y)
374: int x, y;
375: {
376: #ifdef __TURBOC__
377: moveto(x, pc_lasty - y);
378: #endif /* __TURBOC__ */
379: #ifdef __WATCOMC__
380: _moveto(x, pc_lasty - y);
381: #endif /* WATCOMC */
382: #ifdef MSC
383: #endif /* MSC */
384: startx = x;
385: starty = y;
386: }
387:
388: TERM_PUBLIC void PC_vector(x, y)
389: int x, y;
390: {
391: #ifdef __TURBOC__
392: lineto(x, pc_lasty - y);
393: #endif /* __TURBOC__ */
394: #ifdef __WATCOMC__
395: _lineto(x, pc_lasty - y);
396: #endif /* WATCOMC */
397: #ifdef MSC
398: if (pc_corscreen != -1)
399: Cor_line(startx, COR_YLAST - starty, x, COR_YLAST - y);
400: #endif /* MSC */
401: startx = x;
402: starty = y;
403: }
404:
405: TERM_PUBLIC void PC_reset()
406: {
407: graphics_on = FALSE;
408: #ifdef __TURBOC__
409: restorecrtmode();
410: clrscr();
411: #endif /* __TURBOC__ */
412: #ifdef __WATCOMC__
413: _setvideomode(_DEFAULTMODE);
414: #endif /* WATCOMC */
415: #ifdef MSC
416: Vmode(3);
417: #endif /* MSC */
418: }
419:
420: TERM_PUBLIC void PC_text()
421: {
422: if (graphics_on) {
423: graphics_on = FALSE;
424: (void) getch();
425: #ifdef __TURBOC__
426: restorecrtmode();
427: clrscr();
428: #endif /* __TURBOC__ */
429: #ifdef __WATCOMC__
430: _setvideomode(_DEFAULTMODE);
431: #endif /* WATCOMC */
432: #ifdef MSC
433: if (pc_corscreen != -1) {
434: grreset();
435: txonly();
436: }
437: Vmode(3);
438: #endif /* MSC */
439: }
440: }
441:
442: TERM_PUBLIC int PC_text_angle(ang)
443: int ang;
444: {
445: switch (ang) {
446: case 0:
447: pc_text_dir = HORIZ_DIR;
448: break;
449: case 1:
450: pc_text_dir = VERT_DIR;
451: break;
452: }
453: return TRUE;
454: }
455:
456: TERM_PUBLIC int PC_justify_text(just)
457: enum JUSTIFY just;
458: {
459: #if defined(__TURBOC__)
460: switch (just) {
461: case LEFT:
462: pc_hjustify = LEFT_TEXT;
463: pc_vjustify = CENTER_TEXT;
464: break;
465: case CENTRE:
466: pc_hjustify = CENTER_TEXT;
467: pc_vjustify = CENTER_TEXT;
468: break;
469: case RIGHT:
470: pc_hjustify = RIGHT_TEXT;
471: pc_vjustify = CENTER_TEXT;
472: break;
473: }
474: settextjustify(pc_hjustify, pc_vjustify);
475: return 1;
476: #elif defined(__WATCOMC__)
477: switch (just) {
478: case LEFT:
479: pc_hjustify = _LEFT;
480: pc_vjustify = _HALF;
481: break;
482: case CENTRE:
483: pc_hjustify = _CENTER;
484: pc_vjustify = _HALF;
485: break;
486: case RIGHT:
487: pc_hjustify = _RIGHT;
488: pc_vjustify = _HALF;
489: break;
490: }
491: _settextalign(pc_hjustify, pc_vjustify);
492: return 1;
493: #else
494: return (just == LEFT);
495: #endif
496: }
497:
498: TERM_PUBLIC void PC_put_text(x, y, str)
499: int x, y;
500: char *str;
501: {
502: #ifdef __TURBOC__
503: settextstyle(DEFAULT_FONT, pc_text_dir, pc_text_size);
504: settextjustify(pc_hjustify, pc_vjustify);
505: outtextxy(x, pc_lasty - y, str);
506: #endif /* __TURBOC__ */
507: #ifdef __WATCOMC__
508: _setcharsize(pc_text_size * PC_VCHAR, pc_text_size * PC_HCHAR);
509: _settextang(pc_text_dir);
510: _settextalign(pc_hjustify, pc_vjustify);
511: _grtext(x, pc_lasty - y, str);
512: #endif /* WATCOMC */
513: #ifdef MSC
514: #endif /* MSC */
515: }
516:
517: #endif /* TERM_BODY */
518:
519: #ifdef TERM_TABLE
520:
521: TERM_TABLE_START(dospc_driver)
522: "dospc", "IBM PC/Clone running DOS",
523: PC_XMAX, PC_YMAX, PC_VCHAR, PC_HCHAR,
524: PC_VTIC, PC_HTIC, options_null, PC_init, PC_reset,
525: PC_text, null_scale, PC_graphics, PC_move, PC_vector,
526: PC_linetype, PC_put_text, PC_text_angle,
527: PC_justify_text, line_and_point, do_arrow, set_font_null
528: TERM_TABLE_END(pc_driver)
529:
530: #undef LAST_TERM
531: #define LAST_TERM dospc_driver
532:
533: #endif /* TERM_TABLE */
534: #endif /* TERM_PROTO_ONLY */
535:
536: #ifdef TERM_HELP
537: START_HELP(dospc)
538: "1 dospc",
539: "?commands set terminal dospc",
540: "?set terminal dospc",
541: "?set term dospc",
542: "?terminal dospc",
543: "?term dospc",
544: "?dospc",
545: " The `dospc` terminal driver supports PCs with arbitrary graphics boards, which",
546: " will be automatically detected. It should be used only if you are not using",
547: " the gcc or Zortec C/C++ compilers."
548: END_HELP(dospc)
549: #endif /* TERM_HELP */
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