ciolib.c 28.2 KB
Newer Older
deuce's avatar
deuce committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
/* $Id$ */

/****************************************************************************
 * @format.tab-size 4		(Plain Text/Source Code File Header)			*
 * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
 *																			*
 * Copyright 2004 Rob Swindell - http://www.synchro.net/copyright.html		*
 *																			*
 * This library is free software; you can redistribute it and/or			*
 * modify it under the terms of the GNU Lesser General Public License		*
 * as published by the Free Software Foundation; either version 2			*
 * of the License, or (at your option) any later version.					*
 * See the GNU Lesser General Public License for more details: lgpl.txt or	*
 * http://www.fsf.org/copyleft/lesser.html									*
 *																			*
 * Anonymous FTP access to the most recent released source is available at	*
 * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net	*
 *																			*
 * Anonymous CVS access to the development source and modification history	*
 * is available at cvs.synchro.net:/cvsroot/sbbs, example:					*
 * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs login			*
 *     (just hit return, no password is necessary)							*
 * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs checkout src		*
 *																			*
 * For Synchronet coding style and modification guidelines, see				*
 * http://www.synchro.net/source.html										*
 *																			*
 * You are encouraged to submit any modifications (preferably in Unix diff	*
 * format) via e-mail to mods@synchro.net									*
 *																			*
 * Note: If this box doesn't appear square, then you need to fix your tabs.	*
 ****************************************************************************/

34
/* Icon file! */
rswindell's avatar
rswindell committed
35
#ifdef __BORLANDC__
36
#pragma resource "ciolib.res"
rswindell's avatar
rswindell committed
37
#endif
38

39
#include <stdarg.h>
40
#include <stdlib.h>	/* alloca */
41
#include <stdio.h>
42
43
44
#if defined(_WIN32)
 #include <malloc.h>	/* alloca() on Win32 */
#endif
45

deuce's avatar
deuce committed
46
#include <threadwrap.h>
47
48
#include <genwrap.h>
#include <xpbeep.h>
deuce's avatar
deuce committed
49

50
51
52
#define CIOLIB_NO_MACROS
#include "ciolib.h"

deuce's avatar
deuce committed
53
#if defined(WITH_SDL) || defined(WITH_SDL_AUDIO)
54
55
 #include "sdl_con.h"
#endif
deuce's avatar
deuce committed
56
57
58
#ifdef _WIN32
 #include "win32cio.h"
#else
59
60
61
62
63
64
65
 #ifndef NO_X
  #include "x_cio.h"
 #endif
 #include "curs_cio.h"
 #undef getch
#endif

deuce's avatar
deuce committed
66
#include "bitmap_con.h"
67
68
#include "ansi_cio.h"

69
CIOLIBEXPORT cioapi_t	cio_api;
70

71
static const int tabs[10]={9,17,25,33,41,49,57,65,73,80};
72
static int ungotch;
73
struct text_info cio_textinfo;
74
static int lastmode=3;
75
76
77
CIOLIBEXPORT int _wscroll=1;
CIOLIBEXPORT int directvideo=0;
CIOLIBEXPORT int hold_update=0;
78
CIOLIBEXPORT int puttext_can_move=0;
79
80
static int initialized=0;

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
CIOLIBEXPORT int CIOLIBCALL ciolib_movetext(int sx, int sy, int ex, int ey, int dx, int dy);
CIOLIBEXPORT char * CIOLIBCALL ciolib_cgets(char *str);
CIOLIBEXPORT int CIOLIBCALL ciolib_cscanf (char *format , ...);
CIOLIBEXPORT int CIOLIBCALL ciolib_kbhit(void);
CIOLIBEXPORT int CIOLIBCALL ciolib_getch(void);
CIOLIBEXPORT int CIOLIBCALL ciolib_getche(void);
CIOLIBEXPORT int CIOLIBCALL ciolib_ungetch(int ch);
CIOLIBEXPORT void CIOLIBCALL ciolib_gettextinfo(struct text_info *info);
CIOLIBEXPORT int CIOLIBCALL ciolib_wherex(void);
CIOLIBEXPORT int CIOLIBCALL ciolib_wherey(void);
CIOLIBEXPORT void CIOLIBCALL ciolib_wscroll(void);
CIOLIBEXPORT void CIOLIBCALL ciolib_gotoxy(int x, int y);
CIOLIBEXPORT void CIOLIBCALL ciolib_clreol(void);
CIOLIBEXPORT void CIOLIBCALL ciolib_clrscr(void);
CIOLIBEXPORT int CIOLIBCALL ciolib_cputs(char *str);
CIOLIBEXPORT int	CIOLIBCALL ciolib_cprintf(char *fmat, ...);
CIOLIBEXPORT void CIOLIBCALL ciolib_textbackground(int colour);
CIOLIBEXPORT void CIOLIBCALL ciolib_textcolor(int colour);
CIOLIBEXPORT void CIOLIBCALL ciolib_highvideo(void);
CIOLIBEXPORT void CIOLIBCALL ciolib_lowvideo(void);
CIOLIBEXPORT void CIOLIBCALL ciolib_normvideo(void);
CIOLIBEXPORT int CIOLIBCALL ciolib_puttext(int a,int b,int c,int d,unsigned char *e);
CIOLIBEXPORT int CIOLIBCALL ciolib_gettext(int a,int b,int c,int d,unsigned char *e);
CIOLIBEXPORT void CIOLIBCALL ciolib_textattr(int a);
CIOLIBEXPORT void CIOLIBCALL ciolib_delay(long a);
CIOLIBEXPORT int CIOLIBCALL ciolib_putch(int a);
CIOLIBEXPORT void CIOLIBCALL ciolib_setcursortype(int a);
CIOLIBEXPORT void CIOLIBCALL ciolib_textmode(int mode);
CIOLIBEXPORT void CIOLIBCALL ciolib_window(int sx, int sy, int ex, int ey);
CIOLIBEXPORT void CIOLIBCALL ciolib_delline(void);
CIOLIBEXPORT void CIOLIBCALL ciolib_insline(void);
CIOLIBEXPORT char * CIOLIBCALL ciolib_getpass(const char *prompt);
CIOLIBEXPORT void CIOLIBCALL ciolib_copytext(const char *text, size_t buflen);
CIOLIBEXPORT char * CIOLIBCALL ciolib_getcliptext(void);
115
CIOLIBEXPORT int CIOLIBCALL ciolib_get_window_info(int *width, int *height, int *xpos, int *ypos);
116

117
#define CIOLIB_INIT()		{ if(initialized != 1) initciolib(CIOLIB_MODE_AUTO); }
118

deuce's avatar
deuce committed
119
#if defined(WITH_SDL) || defined(WITH_SDL_AUDIO)
120
121
int try_sdl_init(int mode)
{
122
	if(!sdl_initciolib(mode)) {
123
		cio_api.mouse=1;
deuce's avatar
deuce committed
124
125
126
127
128
129
130
131
		cio_api.puttext=bitmap_puttext;
		cio_api.gettext=bitmap_gettext;
		cio_api.gotoxy=bitmap_gotoxy;
		cio_api.setcursortype=bitmap_setcursortype;
		cio_api.setfont=bitmap_setfont;
		cio_api.getfont=bitmap_getfont;
		cio_api.loadfont=bitmap_loadfont;

132
133
134
135
136
		cio_api.kbhit=sdl_kbhit;
		cio_api.getch=sdl_getch;
		cio_api.textmode=sdl_textmode;
		cio_api.showmouse=sdl_showmouse;
		cio_api.hidemouse=sdl_hidemouse;
137
		cio_api.setname=sdl_setname;
138
		cio_api.seticon=sdl_seticon;
139
		cio_api.settitle=sdl_settitle;
140
141
142
143
#ifdef _WIN32
		cio_api.copytext=win32_copytext;
		cio_api.getcliptext=win32_getcliptext;
#else
144
145
		cio_api.copytext=sdl_copytext;
		cio_api.getcliptext=sdl_getcliptext;
146
#endif
147
		cio_api.get_window_info=sdl_get_window_info;
148
149
150
151
152
153
		return(1);
	}
	return(0);
}
#endif

154
155
156
157
#ifndef _WIN32
 #ifndef NO_X
int try_x_init(int mode)
{
deuce's avatar
deuce committed
158
	if(!x_init()) {
159
		cio_api.mode=CIOLIB_MODE_X;
deuce's avatar
deuce committed
160
		cio_api.mouse=1;
deuce's avatar
deuce committed
161
162
163
164
165
166
167
		cio_api.puttext=bitmap_puttext;
		cio_api.gettext=bitmap_gettext;
		cio_api.gotoxy=bitmap_gotoxy;
		cio_api.setcursortype=bitmap_setcursortype;
		cio_api.setfont=bitmap_setfont;
		cio_api.getfont=bitmap_getfont;
		cio_api.loadfont=bitmap_loadfont;
deuce's avatar
deuce committed
168
		cio_api.beep=x_beep;
169
170

		cio_api.kbhit=x_kbhit;
171
172
		cio_api.getch=x_getch;
		cio_api.textmode=x_textmode;
173
		cio_api.setname=x_setname;
174
		cio_api.settitle=x_settitle;
deuce's avatar
deuce committed
175
176
		cio_api.copytext=x_copytext;
		cio_api.getcliptext=x_getcliptext;
177
		cio_api.get_window_info=x_get_window_info;
178
179
180
181
182
183
184
185
186
		return(1);
	}
	return(0);
}
 #endif

int try_curses_init(int mode)
{
	if(curs_initciolib(mode)) {
187
		cio_api.mode=CIOLIB_MODE_CURSES_IBM;
188
189
190
191
192
193
194
195
		cio_api.puttext=curs_puttext;
		cio_api.gettext=curs_gettext;
		cio_api.textattr=curs_textattr;
		cio_api.kbhit=curs_kbhit;
		cio_api.gotoxy=curs_gotoxy;
		cio_api.setcursortype=curs_setcursortype;
		cio_api.getch=curs_getch;
		cio_api.textmode=curs_textmode;
deuce's avatar
deuce committed
196
197
		cio_api.showmouse=curs_showmouse;
		cio_api.hidemouse=curs_hidemouse;
198
199
		cio_api.suspend=curs_suspend;
		cio_api.resume=curs_resume;
200
		cio_api.beep=curs_beep;
201
#if defined(NCURSES_VERSION_MAJOR) || defined (__NetBSD__)
202
203
		cio_api.ESCDELAY=&ESCDELAY;
#endif
204
205
206
207
208
209
210
211
212
		return(1);
	}
	return(0);
}
#endif

int try_ansi_init(int mode)
{
	if(ansi_initciolib(mode)) {
213
		cio_api.mode=CIOLIB_MODE_ANSI;
deuce's avatar
deuce committed
214
		cio_api.mouse=0;
215
216
217
218
219
220
221
222
		cio_api.puttext=ansi_puttext;
		cio_api.gettext=ansi_gettext;
		cio_api.textattr=ansi_textattr;
		cio_api.kbhit=ansi_kbhit;
		cio_api.gotoxy=ansi_gotoxy;
		cio_api.setcursortype=ansi_setcursortype;
		cio_api.getch=ansi_getch;
		cio_api.textmode=ansi_textmode;
deuce's avatar
deuce committed
223
		cio_api.ESCDELAY=&CIOLIB_ANSI_TIMEOUT;
deuce's avatar
deuce committed
224
		cio_api.beep=ansi_beep;
225
226
227
228
229
230
		return(1);
	}
	return(0);
}

#ifdef _WIN32
231
232
233
#if defined(__BORLANDC__)
        #pragma argsused
#endif
234
int try_conio_init(int mode)
235
236
{
	/* This should test for something or other */
237
	if(win32_initciolib(mode)) {
238
		cio_api.mode=CIOLIB_MODE_CONIO;
deuce's avatar
deuce committed
239
		cio_api.mouse=1;
240
241
		cio_api.puttext=win32_puttext;
		cio_api.gettext=win32_gettext;
deuce's avatar
deuce committed
242
		cio_api.kbhit=win32_kbhit;
243
244
		cio_api.gotoxy=win32_gotoxy;
		cio_api.setcursortype=win32_setcursortype;
deuce's avatar
deuce committed
245
		cio_api.getch=win32_getch;
246
		cio_api.textmode=win32_textmode;
deuce's avatar
deuce committed
247
248
		cio_api.showmouse=win32_showmouse;
		cio_api.hidemouse=win32_hidemouse;
249
		cio_api.setname=win32_settitle;
250
		cio_api.settitle=win32_settitle;
deuce's avatar
deuce committed
251
252
		cio_api.copytext=win32_copytext;
		cio_api.getcliptext=win32_getcliptext;
253
254
		cio_api.suspend=win32_suspend;
		cio_api.resume=win32_resume;
255
256
257
258
259
260
		return(1);
	}
	return(0);
}
#endif

261
/* Optional */
262
263
CIOLIBEXPORT void CIOLIBCALL suspendciolib(void)
{
264
	ciolib_clrscr();
265
266
267
268
269
	if(cio_api.suspend != NULL)
		cio_api.suspend();
	initialized=-1;
}

270
CIOLIBEXPORT int CIOLIBCALL initciolib(int mode)
271
{
272
273
274
275
	switch(initialized) {
		case 1:
			return(0);
		case -1:
276
			initialized=1;
277
278
			if(cio_api.resume != NULL)
				cio_api.resume();
279
			ciolib_clrscr();
280
281
282
			return(0);
	}

283
284
	memset(&cio_api,0,sizeof(cio_api));

285
	switch(mode) {
286
		case CIOLIB_MODE_AUTO:
deuce's avatar
deuce committed
287
#if defined(WITH_SDL) || defined(WITH_SDL_AUDIO)
288
			if(!try_sdl_init(CIOLIB_MODE_SDL))
289
#endif
290
#ifdef _WIN32
291
				if(!try_conio_init(mode))
292
#else
293
#ifndef NO_X
294
				if(!try_x_init(mode))
295
#endif
296
					if(!try_curses_init(mode))
297
#endif
298
						try_ansi_init(mode);
299
300
			break;
#ifdef _WIN32
301
		case CIOLIB_MODE_CONIO:
302
			try_conio_init(mode);
303
304
			break;
#else
305
306
		case CIOLIB_MODE_CURSES:
		case CIOLIB_MODE_CURSES_IBM:
307
308
			try_curses_init(mode);
			break;
309

310
		case CIOLIB_MODE_X:
311
#ifndef NO_X
312
			try_x_init(mode);
313
#endif
314
315
			break;
#endif
316
		case CIOLIB_MODE_ANSI:
317
318
			try_ansi_init(mode);
			break;
319

deuce's avatar
deuce committed
320
#if defined(WITH_SDL) || defined(WITH_SDL_AUDIO)
321
		case CIOLIB_MODE_SDL:
322
		case CIOLIB_MODE_SDL_FULLSCREEN:
deuce's avatar
deuce committed
323
324
		case CIOLIB_MODE_SDL_YUV:
		case CIOLIB_MODE_SDL_YUV_FULLSCREEN:
325
326
327
			try_sdl_init(mode);
			break;
#endif
328
	}
329
	if(cio_api.mode==CIOLIB_MODE_AUTO) {
deuce's avatar
deuce committed
330
		fprintf(stderr,"CIOLIB initialization failed!\n");
331
332
333
334
335
336
337
338
		return(-1);
	}

	initialized=1;
	cio_textinfo.winleft=1;
	cio_textinfo.wintop=1;
	cio_textinfo.winright=cio_textinfo.screenwidth;
	cio_textinfo.winbottom=cio_textinfo.screenheight;
339
	/* Default C64 is Lt Blue on Black (As per CGTerm) */
deuce's avatar
Typo.    
deuce committed
340
	switch(cio_textinfo.currmode) {
341
342
343
344
345
346
347
348
		case C64_40X25:
		case C128_40X25:
		case C128_80X25:
			cio_textinfo.normattr=14;
			break;
		default:
			cio_textinfo.normattr=7;
	}
deuce's avatar
deuce committed
349
	_beginthread(ciolib_mouse_thread,0,NULL);
350
351
352
	return(0);
}

353
/* **MUST** be implemented */
354
CIOLIBEXPORT int CIOLIBCALL ciolib_kbhit(void)
355
{
356
	CIOLIB_INIT();
357
358
359
360
361
	if(ungotch)
		return(1);
	return(cio_api.kbhit());
}

362
/* **MUST** be implemented */
363
CIOLIBEXPORT int CIOLIBCALL ciolib_getch(void)
364
365
366
{
	int ch;

367
368
	CIOLIB_INIT();

369
370
371
372
373
374
375
376
	if(ungotch) {
		ch=ungotch;
		ungotch=0;
		return(ch);
	}
	return(cio_api.getch());
}

377
/* Optional */
378
CIOLIBEXPORT int CIOLIBCALL ciolib_getche(void)
379
380
381
{
	int ch;

382
383
	CIOLIB_INIT();

384
385
386
387
388
389
	if(ungotch) {
		ch=ungotch;
		ungotch=0;
		ciolib_putch(ch);
		return(ch);
	}
390
391
392
393
394
395
396
397
398
399
400
401
402
	if(cio_api.getche())
		return(cio_api.getche());
	else {
		while(1) {
			ch=ciolib_getch();
			if(ch) {
				ciolib_putch(ch);
				return(ch);
			}
			/* Eat extended chars */
			ciolib_getch();
		}
	}
403
404
}

405
/* Optional */
406
CIOLIBEXPORT int CIOLIBCALL ciolib_ungetch(int ch)
407
{
408
	CIOLIB_INIT();
409

410
411
	if(ungotch)
		return(EOF);
412
413
	if(cio_api.ungetch)
		return(cio_api.ungetch(ch));
414
415
416
417
	ungotch=ch;
	return(ch);
}

418
/* Optional */
419
CIOLIBEXPORT int CIOLIBCALL ciolib_movetext(int sx, int sy, int ex, int ey, int dx, int dy)
420
421
422
{
	int width;
	int height;
423
	unsigned char *buf;
424

425
	CIOLIB_INIT();
426
427

	if(cio_api.movetext != NULL)
deuce's avatar
deuce committed
428
		return(cio_api.movetext(sx, sy, ex, ey, dx, dy));
429

430
431
	width=ex-sx;
	height=ey-sy;
432
	buf=(unsigned char *)alloca((width+1)*(height+1)*2);
433
434
	if(buf==NULL)
		return(0);
435
	if(!ciolib_gettext(sx,sy,ex,ey,buf))
436
		return(0);
437
	if(!ciolib_puttext(dx,dy,dx+width,dy+height,buf))
438
439
440
441
		return(0);
	return(1);
}

442
/* Optional */
443
CIOLIBEXPORT char * CIOLIBCALL ciolib_cgets(char *str)
444
445
446
447
448
{
	int	maxlen;
	int len=0;
	int ch;

449
	CIOLIB_INIT();
450

451
452
453
	if(cio_api.cgets)
		return(cio_api.cgets(str));

454
	maxlen=*(unsigned char *)str;
455
	while((ch=ciolib_getch())!='\n' && ch !='\r') {
456
457
		switch(ch) {
			case 0:	/* Skip extended keys */
458
				ciolib_getche();
459
				break;
deuce's avatar
deuce committed
460
			case '\r':	/* Skip \r (ToDo: Should this be treated as a \n? */
461
462
463
				break;
			case '\b':
				if(len==0) {
464
					ciolib_putch(7);
465
466
467
468
469
470
					break;
				}
				ciolib_putch('\b');
				len--;
				break;
			default:
471
				ciolib_putch(ch);
472
473
474
475
				str[(len++)+2]=ch;
				if(len==maxlen) {
					str[len+2]=0;
					*((unsigned char *)(str+1))=(unsigned char)len;
deuce's avatar
deuce committed
476
					ciolib_putch('\r');
477
					ciolib_putch('\n');
478
479
480
481
482
					return(&str[2]);
				}
				break;
		}
	}
483
484
	str[len+2]=0;
	*((unsigned char *)(str+1))=(unsigned char)len;
deuce's avatar
deuce committed
485
	ciolib_putch('\r');
486
	ciolib_putch('\n');
487
	return(&str[2]);
488
489
}

490
491
492
493
494
495
496
497
498
499
500
501
#ifdef _MSC_VER	/* Use lame vsscanf() implementation */
/* This is a way to do _vsscanf without using fancy stack tricks or using the
 * "_input" method provided by Microsoft, which is no longer exported as of .NET.
 * The function has a limit of 25 arguments (or less if you run out of stack space),
 *  but how many arguments do you need?
 */
/* From "krabsheva" - http://www.codeguru.com/Cpp/Cpp/string/comments.php/c5631/?thread=1051 */
int vsscanf( const char *buffer, const char *format, va_list arg_ptr )
{
	int i, ret;
	void *arg_arr[25];

502
	/* Do exception handling in case we go too far // */
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
	__try
	{
		for ( i = 0; i < 25; i++ )
			arg_arr[i] = va_arg( arg_ptr, void * );
	}
	__except( EXCEPTION_EXECUTE_HANDLER )
	{
	}

	/* This is lame, but the extra arguments won't be used by sscanf */
	ret = sscanf( buffer, format, arg_arr[0], arg_arr[1], arg_arr[2], arg_arr[3],
		arg_arr[4], arg_arr[5], arg_arr[6], arg_arr[7], arg_arr[8], arg_arr[9],
		arg_arr[10], arg_arr[11], arg_arr[12], arg_arr[13], arg_arr[14],
		arg_arr[15], arg_arr[16], arg_arr[17], arg_arr[18], arg_arr[19],
		arg_arr[20], arg_arr[21], arg_arr[22], arg_arr[23], arg_arr[24] );

	return ret;
}
#endif

523
/* Optional... in fact, since it's varargs, you can't override it */
524
CIOLIBEXPORT int CIOLIBCALL ciolib_cscanf (char *format , ...)
525
526
527
528
529
{
	char str[255];
    va_list argptr;
	int ret;

530
	CIOLIB_INIT();
531

532
533
534
535
536
537
538
	str[0]=-1;
	va_start(argptr,format);
	ret=vsscanf(ciolib_cgets(str),format,argptr);
	va_end(argptr);
	return(ret);
}

539
/* Optional */
540
CIOLIBEXPORT char * CIOLIBCALL ciolib_getpass(const char *prompt)
541
542
543
544
545
{
	static char pass[9];
	int len=0;
	int ch;

546
	CIOLIB_INIT();
547
548
549
550

	if(cio_api.getpass)
		return(cio_api.getpass(prompt));

551
	ciolib_cputs((char *)prompt);
deuce's avatar
deuce committed
552
	while((ch=ciolib_getch())!='\n') {
553
554
		switch(ch) {
			case 0:	/* Skip extended keys */
deuce's avatar
deuce committed
555
				ciolib_getch();
556
557
558
559
560
				break;
			case '\r':	/* Skip \r (ToDo: Should this be treeated as a \n? */
				break;
			case '\b':
				if(len==0) {
561
					ciolib_putch(7);
562
563
564
565
566
567
					break;
				}
				len--;
				break;
			default:
				if(len==8)
568
					ciolib_putch(7);
569
570
571
572
573
				else
					pass[len++]=ch;
				break;
		}
	}
574
575
	pass[len]=0;
	return(pass);
576
577
}

578
579
/* TODO: Hackery here... must fix */
/* Optional */
580
CIOLIBEXPORT void CIOLIBCALL ciolib_gettextinfo(struct text_info *info)
581
{
582
583
584
585

	CIOLIB_INIT()

	if(cio_api.gettextinfo) {
586
		cio_api.gettextinfo(&cio_textinfo);
587
		return;
588
	}
589
	
590
591
592
593
594
595
596
597
598
599
600
	if(info!=&cio_textinfo) {
		info->winleft=cio_textinfo.winleft;        /* left window coordinate */
		info->wintop=cio_textinfo.wintop;         /* top window coordinate */
		info->winright=cio_textinfo.winright;       /* right window coordinate */
		info->winbottom=cio_textinfo.winbottom;      /* bottom window coordinate */
		info->attribute=cio_textinfo.attribute;      /* text attribute */
		info->normattr=cio_textinfo.normattr;       /* normal attribute */
		info->currmode=cio_textinfo.currmode;       /* current video mode:
                               			 BW40, BW80, C40, C80, or C4350 */
		info->screenheight=cio_textinfo.screenheight;   /* text screen's height */
		info->screenwidth=cio_textinfo.screenwidth;    /* text screen's width */
deuce's avatar
deuce committed
601
602
		info->curx=cio_textinfo.curx;           /* x-coordinate in current window */
		info->cury=cio_textinfo.cury;           /* y-coordinate in current window */
603
604
605
	}
}

606
/* Optional */
607
CIOLIBEXPORT void CIOLIBCALL ciolib_wscroll(void)
608
609
610
{
	int os;

611
	CIOLIB_INIT();
612

613
	if(cio_api.wscroll!=NULL) {
614
615
616
		cio_api.wscroll();
		return;
	}
617
618
	if(!_wscroll)
		return;
619
620
621
622
623
624
625
	ciolib_movetext(cio_textinfo.winleft
			,cio_textinfo.wintop+1
			,cio_textinfo.winright
			,cio_textinfo.winbottom
			,cio_textinfo.winleft
			,cio_textinfo.wintop);
	ciolib_gotoxy(1,cio_textinfo.winbottom-cio_textinfo.wintop+1);
626
627
	os=_wscroll;
	_wscroll=0;
628
629
	/* ciolib_cprintf("%*s",ti.winright-ti.winleft+1,""); */
	ciolib_clreol();
630
	_wscroll=os;
631
	ciolib_gotoxy(cio_textinfo.curx,cio_textinfo.cury);
632
633
}

634
/* Optional */
635
CIOLIBEXPORT int CIOLIBCALL ciolib_wherex(void)
636
637
638
{
	int x;

639
	CIOLIB_INIT();
640
641
642
643
644
645
646
647

	if(cio_api.wherex) {
		/* TODO: This is old hackery... beware */
		x=cio_api.wherex();
		x=x-cio_textinfo.winleft+1;
	}
	else
		x=cio_textinfo.curx;
648
649
650
	return(x);
}

651
/* Optional */
652
CIOLIBEXPORT int CIOLIBCALL ciolib_wherey(void)
653
654
655
{
	int y;

656
	CIOLIB_INIT();
657
658
659
660
661
662
663
664

	if(cio_api.wherey) {
		/* TODO: This is old hackery... beware */
		y=cio_api.wherey();
		y=y-cio_textinfo.wintop+1;
	}
	else
		y=cio_textinfo.cury;
665
666
667
	return(y);
}

668
/* **MUST** be implemented */
669
CIOLIBEXPORT void CIOLIBCALL ciolib_gotoxy(int x, int y)
670
{
671
	CIOLIB_INIT();
672

673
	if(		x < 1
674
			|| x > cio_textinfo.winright-cio_textinfo.winleft+1
675
			|| y < 1
676
			|| y > cio_textinfo.winbottom-cio_textinfo.wintop+1)
677
		return;
678
	cio_api.gotoxy(x,y);
679
680
}

681
/* **MUST** be implemented */
682
CIOLIBEXPORT void CIOLIBCALL ciolib_textmode(int mode)
683
{
684
	CIOLIB_INIT();
685

686
687
688
689
690
691
692
693
694
695
696
697
	if(mode==-1) {
		cio_api.textmode(lastmode);
		lastmode=cio_textinfo.currmode;
	}
	else {
		lastmode=cio_textinfo.currmode;
		cio_api.textmode(mode);
	}
	cio_textinfo.winleft=1;
	cio_textinfo.wintop=1;
	cio_textinfo.winright=cio_textinfo.screenwidth;
	cio_textinfo.winbottom=cio_textinfo.screenheight;
deuce's avatar
Typo.    
deuce committed
698
	switch(cio_textinfo.currmode) {
699
700
701
702
703
704
705
706
		case C64_40X25:
		case C128_40X25:
		case C128_80X25:
			cio_textinfo.normattr=14;
			break;
		default:
			cio_textinfo.normattr=7;
	}
707
708
}

709
/* Optional */
710
CIOLIBEXPORT void CIOLIBCALL ciolib_window(int sx, int sy, int ex, int ey)
711
{
712
	CIOLIB_INIT();
713
714
715
716

	if(cio_api.window)
		cio_api.window(sx,sy,ex,ey);

717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
	if(		   sx < 1
			|| sy < 1
			|| ex < 1
			|| ey < 1
			|| sx > cio_textinfo.screenwidth
			|| sy > cio_textinfo.screenheight
			|| sx > ex
			|| sy > ey
			|| ex > cio_textinfo.screenwidth
			|| ey > cio_textinfo.screenheight)
		return;
	cio_textinfo.winleft=sx;
	cio_textinfo.wintop=sy;
	cio_textinfo.winright=ex;
	cio_textinfo.winbottom=ey;
	ciolib_gotoxy(1,1);
}

735
/* Optional */
736
CIOLIBEXPORT void CIOLIBCALL ciolib_clreol(void)
737
{
738
739
740
	unsigned char *buf;
	int i;
	int width,height;
741

742
743
	CIOLIB_INIT();
	
744
745
746
747
	if(cio_api.clreol) {
		cio_api.clreol();
		return;
	}
748

749
	width=cio_textinfo.winright-cio_textinfo.winleft+1-cio_textinfo.curx+1;
750
	height=1;
751
	buf=(unsigned char *)alloca(width*height*2);
752
753
	for(i=0;i<width*height*2;) {
		buf[i++]=' ';
754
		buf[i++]=cio_textinfo.attribute;
755
	}
756
757
758
759
760
761
	ciolib_puttext(
			cio_textinfo.curx+cio_textinfo.winleft-1,
			cio_textinfo.cury+cio_textinfo.wintop-1,
			cio_textinfo.winright,
			cio_textinfo.cury+cio_textinfo.wintop-1,
			buf);
762
763
}

764
/* Optional */
765
CIOLIBEXPORT void CIOLIBCALL ciolib_clrscr(void)
766
{
767
	unsigned char *buf;
768
769
	int i;
	int width,height;
770
	int old_ptcm=puttext_can_move;
771

772
	CIOLIB_INIT();
773
774
775
776
	if(cio_api.clrscr) {
		cio_api.clrscr();
		return;
	}
deuce's avatar
deuce committed
777

778
779
	width=cio_textinfo.winright-cio_textinfo.winleft+1;
	height=cio_textinfo.winbottom-cio_textinfo.wintop+1;
780
	buf=(unsigned char *)alloca(width*height*2);
781
782
	for(i=0;i<width*height*2;) {
		buf[i++]=' ';
783
		buf[i++]=cio_textinfo.attribute;
784
	}
785
	puttext_can_move=1;
786
	ciolib_puttext(cio_textinfo.winleft,cio_textinfo.wintop,cio_textinfo.winright,cio_textinfo.winbottom,buf);
787
	ciolib_gotoxy(1,1);
788
	puttext_can_move=old_ptcm;
789
790
}

791
/* Optional */
792
CIOLIBEXPORT void CIOLIBCALL ciolib_delline(void)
793
{
794
	CIOLIB_INIT();
795

796
797
798
799
800
801
802
803
804
805
806
	if(cio_api.delline) {
		cio_api.delline();
		return;
	}
	ciolib_movetext(cio_textinfo.winleft
			,cio_textinfo.cury+1
			,cio_textinfo.winright
			,cio_textinfo.winbottom
			,cio_textinfo.winleft
			,cio_textinfo.cury);
	ciolib_gotoxy(1,cio_textinfo.winbottom-cio_textinfo.wintop+1);
807
	ciolib_clreol();
808
	ciolib_gotoxy(cio_textinfo.curx,cio_textinfo.cury);
809
810
}

811
/* Optional */
812
CIOLIBEXPORT void CIOLIBCALL ciolib_insline(void)
813
{
814
	CIOLIB_INIT();
815

816
817
818
819
820
821
	if(cio_api.insline) {
		cio_api.insline();
		return;
	}
	ciolib_movetext(cio_textinfo.winleft,cio_textinfo.cury,cio_textinfo.winright,cio_textinfo.winbottom,cio_textinfo.winleft,cio_textinfo.cury+1);
	ciolib_gotoxy(1,cio_textinfo.cury);
822
	ciolib_clreol();
823
	ciolib_gotoxy(cio_textinfo.curx,cio_textinfo.cury);
824
825
}

826
/* Not overridable due to varargs */
827
CIOLIBEXPORT int CIOLIBCALL ciolib_cprintf(char *fmat, ...)
828
829
830
{
    va_list argptr;
	int		ret;
831
#ifdef _MSC_VER		/* Can't figure out a way to allocate a "big enough" buffer for Win32. */
832
833
834
	char	str[16384];
#else
	char	*str;
835
	va_list argptr2;
836
837
#endif

838
	CIOLIB_INIT();
839

840
    va_start(argptr,fmat);
841
842
843
844
845
846
847
848
849
850

#ifdef HAVE_VASPRINTF
	ret=vasprintf(&str, fmat, argptr);
	if(ret>=0)
		ciolib_cputs(str);
	else
		ret=EOF;
	free(str);
#else

851
#ifdef _MSC_VER
rswindell's avatar
rswindell committed
852
	ret=_vsnprintf(str,sizeof(str)-1,fmat,argptr);
853
#else
854
855
856
857

#ifdef __BORLANDC__
	argptr2=argptr;
#else
858
	va_copy(argptr2, argptr);
859
#endif
860
    ret=vsnprintf(NULL,0,fmat,argptr);
deuce's avatar
deuce committed
861
862
	if(ret<0)
		return(EOF);
863
	str=(char *)alloca(ret+1);
864
865
	if(str==NULL)
		return(EOF);
866
	ret=vsprintf(str,fmat,argptr2);
867
868
#endif
    va_end(argptr);
869
#ifndef _MSC_VER
870
    va_end(argptr2);
871
#endif
872
873
874
875
	if(ret>=0)
		ciolib_cputs(str);
	else
		ret=EOF;
876
877
878

#endif

879
880
881
    return(ret);
}

882
/* Optional */
883
CIOLIBEXPORT int CIOLIBCALL ciolib_cputs(char *str)
884
885
886
{
	int		pos;
	int		ret=0;
887
	int		olddmc;
888

889
	CIOLIB_INIT();
890

891
892
893
	if(cio_api.cputs)
		return(cio_api.cputs(str));

894
895
	olddmc=hold_update;
	hold_update=1;
896
897
898
899
900
901
902
	for(pos=0;str[pos];pos++)
	{
		ret=str[pos];
		if(str[pos]=='\n')
			ciolib_putch('\r');
		ciolib_putch(str[pos]);
	}
903
	hold_update=olddmc;
deuce's avatar
deuce committed
904
	ciolib_gotoxy(ciolib_wherex(),ciolib_wherey());
905
906
907
	return(ret);
}

908
/* Optional... and overriding is silly */
909
CIOLIBEXPORT void CIOLIBCALL ciolib_textbackground(int colour)
910
911
{
	unsigned char attr;
912
	unsigned char col;
913

914
	CIOLIB_INIT();
915
916
917
918
919
920

	if(cio_api.textbackground) {
		cio_api.textbackground(colour);
		return;
	}

921
922
	attr=cio_textinfo.attribute;
	attr&=143;
923
924
	col=(colour & 0x07);
	attr|=(col<<4);
925
926
927
	ciolib_textattr(attr);
}

928
/* Optional... and overriding is silly */
929
CIOLIBEXPORT void CIOLIBCALL ciolib_textcolor(int colour)
930
931
{
	unsigned char attr;
932
	unsigned char col;
933

934
	CIOLIB_INIT();
935
936
937
938
939
940

	if(cio_api.textcolor) {
		cio_api.textcolor(colour);
		return;
	}

941
942
	attr=cio_textinfo.attribute;
	attr&=240;
943
944
	col=colour&0x0f;
	attr|=col;
945
946
947
	ciolib_textattr(attr);
}

948
/* Optional... and overriding is silly */
949
CIOLIBEXPORT void CIOLIBCALL ciolib_highvideo(void)
950
951
952
{
	int attr;

953
	CIOLIB_INIT();
954
955
956
957
958
959

	if(cio_api.highvideo) {
		cio_api.highvideo();
		return;
	}

960
961
962
963
964
	attr=cio_textinfo.attribute;
	attr |= 8;
	ciolib_textattr(attr);
}

965
/* Optional... and overriding is silly */
966
CIOLIBEXPORT void CIOLIBCALL ciolib_lowvideo(void)
967
968
969
{
	int attr;

970
	CIOLIB_INIT();
971
972
973
974
975
976

	if(cio_api.lowvideo) {
		cio_api.lowvideo();
		return;
	}

977
978
979
980
981
	attr=cio_textinfo.attribute;
	attr &= 0xf7;
	ciolib_textattr(attr);
}

982
/* Optional... and overriding is silly */
983
CIOLIBEXPORT void CIOLIBCALL ciolib_normvideo(void)
984
{
985
986
	CIOLIB_INIT();
	
987
988
989
990
991
	if(cio_api.normvideo) {
		cio_api.normvideo();
		return;
	}
	ciolib_textattr(cio_textinfo.normattr);
992
993
}

994
/* **MUST** be implemented */
995
CIOLIBEXPORT int CIOLIBCALL ciolib_puttext(int a,int b,int c,int d,unsigned char *e)
996
{
997
998
	CIOLIB_INIT();
	
999
1000
1001
	return(cio_api.puttext(a,b,c,d,e));
}

1002
/* **MUST** be implemented */
1003
CIOLIBEXPORT int CIOLIBCALL ciolib_gettext(int a,int b,int c,int d,unsigned char *e)
1004
{
1005
1006
	CIOLIB_INIT();
	
1007
1008
1009
	return(cio_api.gettext(a,b,c,d,e));
}

1010
/* Optional */
1011
CIOLIBEXPORT void CIOLIBCALL ciolib_textattr(int a)
1012
{
1013
	CIOLIB_INIT();
1014
1015
1016