src/rt/aed.c

#ifndef lint
static const char       RCSid[] = "$Id: aed.c,v 2.4 2003/02/25 02:47:22 greg Exp $";
#endif
/*
 *  aed.c - driver for AED 512 terminal.
 */

#include "copyright.h"

#include  <stdio.h>

#include  "rterror.h"
#include  "color.h"
#include  "driver.h"


        /* AED command characters */

#define AEDFMT  "1888N" /* Format string to send to AED */
#define CSTAT   0100    /* Console status: lower case */
#define SCT     75      /* Set color lookup table */
#define SEC     67      /* Set color for vector drawing */
#define MOV     81      /* Set CAP (current access pointer) to x, y */
#define OPT     40      /* Miscellaneous terminal control */
#define SEN     71      /* Set encoding types */
#define RST     48      /* Reset terminal */
#define FFD     12      /* Clear screen */
#define EJC     85      /* Enable Joystick cursor positioning */
#define DJC     100     /* Disable Joystick cursor positioning */
#define SCC     99      /* Set Cursor Colors */
#define SCP     93      /* Set Cursor Parameters */
#define DFR     111     /* Draw Filled Rectangle */
#define RCP     106     /* Read Cursor Position */
#define ESC     27      /* Escape starts a command sequence */
#define SCS     96      /* Set Console Status */
#define END     1       /* Ctrl-A used to terminate command mode */

#define BLK     0       /* color table entry for black */
#define WHT     7       /* color table entry for white */

#define command(c)      (putc(ESC, stdout), putc(c, stdout))
#define byte(b)         putc(b, stdout)
#define string(s)       fputs(s, stdout)
#define flush()         fflush(stdout)

#define  GAMMA          2.5             /* exponent for color correction */

#define  NCOLORS        248             /* our color table size */
#define  MINPIX         8               /* minimum hardware color */

#define  NCOLS          512             /* maximum # columns for output */
#define  NROWS          483-COMHT       /* maximum # rows for output */
#define  COMHT          16              /* height of command line */
#define  COMCW          63              /* maximum chars on command line */

static void  aed_close(void);
static void aed_errout(char*);
static void longwait(int t);
static void aedgetcap(int  *xp, int *yp);
static void aedsetcap(int  x, int y);
static void anewcolr(int  index, int  r,int g,int b);
static void aed_paintr(COLOR  col, int  xmin, int ymin, int xmax, int ymax);
static void aedcoord(int  x, int y);
static void aed_comout(char  *out);
static int aed_getcur(int  *xp, int *yp);
static aed_clear(int  x, int y);

static struct driver  aed_driver = {
        aed_close, aed_clear, aed_paintr, aed_getcur,
        aed_comout, NULL, NULL,
        1.0, NCOLS, NROWS
};


struct driver *
aed_init(name, id)                      /* open AED */
char  *name, *id;
{
        if (ttyset(&aed_driver, fileno(stdin)) < 0) {   /* set tty driver */
                eputs("cannot access terminal\n");
                return(NULL);
        }
        command(RST);                                   /* reset AED */
        longwait(2);
        command(OPT);
        byte(6); byte(1);                               /* AED command set */
        command(SEN);
        string(AEDFMT);
        command(SCS);                                   /* set console status */
        byte(CSTAT);
        command(SCC);                                   /* set cursor type */
        byte(BLK); byte(WHT); byte(15);
        command(SCP);
        byte('+'); byte(0); byte(1);
        make_gmap(GAMMA);                               /* make color map */
        erract[USER].pf =                               /* set error vector */
        erract[SYSTEM].pf =
        erract[INTERNAL].pf =
        erract[CONSISTENCY].pf = aed_errout;
        erract[COMMAND].pf = aed_errout;
        if (erract[WARNING].pf != NULL)
                erract[WARNING].pf = aed_errout;
        return(&aed_driver);
}


static void
aed_close(void)                                 /* close AED */
{
        erract[USER].pf =                       /* reset error vector */
        erract[SYSTEM].pf =
        erract[INTERNAL].pf =
        erract[CONSISTENCY].pf = eputs;
        erract[COMMAND].pf = NULL;
        if (erract[WARNING].pf != NULL)
                erract[WARNING].pf = wputs;
        aedsetcap(0, 0);                        /* go to bottom */
        command(SEC);
        byte(WHT);                              /* white text */
        byte(END);
        byte('\n');                             /* scroll */
        flush();
        ttydone();
}


static
aed_clear(x, y)                                 /* clear AED */
int  x, y;
{
        command(FFD);
        new_ctab(NCOLORS);                      /* init color table */
        flush();
}


static void
aed_paintr(col, xmin, ymin, xmax, ymax)         /* paint a rectangle */
COLOR  col;
int  xmin, ymin, xmax, ymax;
{
        int  ndx;

        ndx = get_pixel(col, anewcolr);         /* calls anewcolr() */
        command(SEC);                           /* draw rectangle */
        byte(ndx+MINPIX);
        aedsetcap(xmin, ymin+COMHT);
        command(DFR);
        aedcoord(xmax-1, ymax+(-1+COMHT));
        flush();
}


static int
aed_getcur(xp, yp)                      /* get cursor position */
int  *xp, *yp;
{
        int  com;

        command(EJC);                   /* enable cursor */
        com = getch();                  /* get key */
        command(DJC);                   /* disable cursor */
        aedgetcap(xp, yp);              /* get cursor position */
        *yp -= COMHT;                   /* convert coordinates */
        return(com);                    /* return key hit */
}


static void
aed_comout(out)                         /* output to command line */
register char  *out;
{
        static int  newl = 1;
        static int  inmsg = 0;

        while (*out) {
                if (newl) {                     /* new line */
                        command(SEC);
                        byte(BLK);
                        aedsetcap(0, 0);
                        command(DFR);
                        aedcoord(NCOLS-1, COMHT-1);
                        aedsetcap(1, 4);
                        command(SEC);           /* white text */
                        byte(WHT);
                        byte(END);
                        newl = 0;
                }
                switch (*out) {
                case '\n':                      /* end of line */
                        newl = 1;
                /* fall through */
                case '\r':
                        inmsg = 0;
                        byte('\r');
                        break;
                case '\b':                      /* back space */
                        if (inmsg > 0 && --inmsg < COMCW)
                                byte('\b');
                        break;
                default:                        /* character */
                        if (inmsg++ < COMCW)
                                byte(*out);
                        break;
                }
                out++;
        }
        flush();
}


static void
aed_errout(msg)                         /* print an error message */
char  *msg;
{
        aed_comout(msg);
        if (*msg && msg[strlen(msg)-1] == '\n')
                longwait(2);
}


/*
 * aedsetcap - sets AED's current access pointer to (x, y).
 */

static void
aedsetcap(x, y)
register int  x, y;
{
        command(MOV);
        aedcoord(x, y);
}

/*
 * aedcoord - puts out an (x, y) coordinate in AED 8 bit format.
 */

static void
aedcoord(x, y)
register int  x, y;
{
        byte(((x >> 4) & 0x30) | ((y >> 8) & 0x3));
        byte(x & 0xff);
        byte(y & 0xff);
}


static void
aedgetcap(xp, yp)               /* get cursor postion */
int  *xp, *yp;
{
        register int  c;
                                /* get cursor postition */
        command(RCP);
        flush();
        c = getch();
        *xp = (c & 0x30) << 4;
        *yp = (c & 0x3) << 8;
        *xp |= getch();
        *yp |= getch();
}


static void
anewcolr(index, r, g, b)                /* enter a color into our table */
int  index;
int  r, g, b;
{
        command(SCT);
        byte((index+MINPIX)&255);
        byte(1);
        byte(r);
        byte(g);
        byte(b);
        flush();
}


static void
longwait(t)             /* longer wait */
int  t;
{
        flush();
        sleep(t);
}
Revision:	2.5
Committed:	Wed Aug 20 10:00:09 2003 UTC (20 years, 8 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.4:	+24 -16 lines
Log Message:	Continued ansification (though aed.c depends on tty.c, which doesn't work on Linux).
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.5	static const char RCSid[] = "$Id: aed.c,v 2.4 2003/02/25 02:47:22 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* aed.c - driver for AED 512 terminal.
6	greg	2.3	*/
7
8	greg	2.4	#include "copyright.h"
9	greg	1.1
10			#include <stdio.h>
11
12	schorsch	2.5	#include "rterror.h"
13			#include "color.h"
14	greg	1.1	#include "driver.h"
15
16
17			/* AED command characters */
18
19			#define AEDFMT "1888N" /* Format string to send to AED */
20			#define CSTAT 0100 /* Console status: lower case */
21			#define SCT 75 /* Set color lookup table */
22			#define SEC 67 /* Set color for vector drawing */
23			#define MOV 81 /* Set CAP (current access pointer) to x, y */
24			#define OPT 40 /* Miscellaneous terminal control */
25			#define SEN 71 /* Set encoding types */
26			#define RST 48 /* Reset terminal */
27			#define FFD 12 /* Clear screen */
28			#define EJC 85 /* Enable Joystick cursor positioning */
29			#define DJC 100 /* Disable Joystick cursor positioning */
30			#define SCC 99 /* Set Cursor Colors */
31			#define SCP 93 /* Set Cursor Parameters */
32			#define DFR 111 /* Draw Filled Rectangle */
33			#define RCP 106 /* Read Cursor Position */
34			#define ESC 27 /* Escape starts a command sequence */
35			#define SCS 96 /* Set Console Status */
36			#define END 1 /* Ctrl-A used to terminate command mode */
37
38			#define BLK 0 /* color table entry for black */
39			#define WHT 7 /* color table entry for white */
40
41			#define command(c) (putc(ESC, stdout), putc(c, stdout))
42			#define byte(b) putc(b, stdout)
43			#define string(s) fputs(s, stdout)
44			#define flush() fflush(stdout)
45
46	greg	1.3	#define GAMMA 2.5 /* exponent for color correction */
47	greg	1.1
48	greg	1.3	#define NCOLORS 248 /* our color table size */
49	greg	1.2	#define MINPIX 8 /* minimum hardware color */
50	greg	1.1
51			#define NCOLS 512 /* maximum # columns for output */
52	greg	1.6	#define NROWS 483-COMHT /* maximum # rows for output */
53	greg	1.1	#define COMHT 16 /* height of command line */
54			#define COMCW 63 /* maximum chars on command line */
55
56	schorsch	2.5	static void aed_close(void);
57			static void aed_errout(char*);
58			static void longwait(int t);
59			static void aedgetcap(int xp, int yp);
60			static void aedsetcap(int x, int y);
61			static void anewcolr(int index, int r,int g,int b);
62			static void aed_paintr(COLOR col, int xmin, int ymin, int xmax, int ymax);
63			static void aedcoord(int x, int y);
64			static void aed_comout(char *out);
65			static int aed_getcur(int xp, int yp);
66			static aed_clear(int x, int y);
67	greg	1.1
68			static struct driver aed_driver = {
69			aed_close, aed_clear, aed_paintr, aed_getcur,
70	greg	1.7	aed_comout, NULL, NULL,
71	greg	1.6	1.0, NCOLS, NROWS
72	greg	1.1	};
73
74
75			struct driver *
76	greg	1.5	aed_init(name, id) /* open AED */
77			char name, id;
78	greg	1.1	{
79			if (ttyset(&aed_driver, fileno(stdin)) < 0) { /* set tty driver */
80	gregl	2.2	eputs("cannot access terminal\n");
81	greg	1.1	return(NULL);
82			}
83			command(RST); /* reset AED */
84			longwait(2);
85			command(OPT);
86			byte(6); byte(1); /* AED command set */
87			command(SEN);
88			string(AEDFMT);
89			command(SCS); /* set console status */
90			byte(CSTAT);
91			command(SCC); /* set cursor type */
92			byte(BLK); byte(WHT); byte(15);
93			command(SCP);
94			byte('+'); byte(0); byte(1);
95	greg	1.4	make_gmap(GAMMA); /* make color map */
96	gregl	2.2	erract[USER].pf = /* set error vector */
97			erract[SYSTEM].pf =
98			erract[INTERNAL].pf =
99			erract[CONSISTENCY].pf = aed_errout;
100			erract[COMMAND].pf = aed_errout;
101			if (erract[WARNING].pf != NULL)
102			erract[WARNING].pf = aed_errout;
103	greg	1.1	return(&aed_driver);
104			}
105
106
107	schorsch	2.5	static void
108			aed_close(void) /* close AED */
109	greg	1.1	{
110	gregl	2.2	erract[USER].pf = /* reset error vector */
111			erract[SYSTEM].pf =
112			erract[INTERNAL].pf =
113			erract[CONSISTENCY].pf = eputs;
114			erract[COMMAND].pf = NULL;
115			if (erract[WARNING].pf != NULL)
116			erract[WARNING].pf = wputs;
117	greg	1.1	aedsetcap(0, 0); /* go to bottom */
118			command(SEC);
119			byte(WHT); /* white text */
120			byte(END);
121			byte('\n'); /* scroll */
122			flush();
123			ttydone();
124			}
125
126
127			static
128			aed_clear(x, y) /* clear AED */
129			int x, y;
130			{
131			command(FFD);
132	greg	1.4	new_ctab(NCOLORS); /* init color table */
133	greg	1.3	flush();
134	greg	1.1	}
135
136
137	schorsch	2.5	static void
138	greg	1.1	aed_paintr(col, xmin, ymin, xmax, ymax) /* paint a rectangle */
139			COLOR col;
140			int xmin, ymin, xmax, ymax;
141			{
142	greg	1.3	int ndx;
143
144	greg	1.4	ndx = get_pixel(col, anewcolr); /* calls anewcolr() */
145	greg	1.3	command(SEC); /* draw rectangle */
146			byte(ndx+MINPIX);
147	greg	1.1	aedsetcap(xmin, ymin+COMHT);
148			command(DFR);
149			aedcoord(xmax-1, ymax+(-1+COMHT));
150			flush();
151			}
152
153
154			static int
155			aed_getcur(xp, yp) /* get cursor position */
156			int xp, yp;
157			{
158			int com;
159
160			command(EJC); /* enable cursor */
161			com = getch(); /* get key */
162			command(DJC); /* disable cursor */
163			aedgetcap(xp, yp); /* get cursor position */
164			yp -= COMHT; / convert coordinates */
165			return(com); /* return key hit */
166			}
167
168
169	schorsch	2.5	static void
170	greg	1.1	aed_comout(out) /* output to command line */
171			register char *out;
172			{
173			static int newl = 1;
174			static int inmsg = 0;
175
176			while (*out) {
177			if (newl) { /* new line */
178			command(SEC);
179			byte(BLK);
180			aedsetcap(0, 0);
181			command(DFR);
182			aedcoord(NCOLS-1, COMHT-1);
183			aedsetcap(1, 4);
184			command(SEC); /* white text */
185			byte(WHT);
186			byte(END);
187			newl = 0;
188			}
189			switch (*out) {
190			case '\n': /* end of line */
191			newl = 1;
192			/* fall through */
193			case '\r':
194			inmsg = 0;
195			byte('\r');
196			break;
197			case '\b': /* back space */
198			if (inmsg > 0 && --inmsg < COMCW)
199			byte('\b');
200			break;
201			default: /* character */
202			if (inmsg++ < COMCW)
203			byte(*out);
204			break;
205			}
206			out++;
207			}
208			flush();
209			}
210
211
212	schorsch	2.5	static void
213	greg	1.1	aed_errout(msg) /* print an error message */
214			char *msg;
215			{
216			aed_comout(msg);
217			if (*msg && msg[strlen(msg)-1] == '\n')
218			longwait(2);
219			}
220
221
222			/*
223			* aedsetcap - sets AED's current access pointer to (x, y).
224			*/
225
226	schorsch	2.5	static void
227	greg	1.1	aedsetcap(x, y)
228			register int x, y;
229			{
230			command(MOV);
231			aedcoord(x, y);
232			}
233
234			/*
235			* aedcoord - puts out an (x, y) coordinate in AED 8 bit format.
236			*/
237
238	schorsch	2.5	static void
239	greg	1.1	aedcoord(x, y)
240			register int x, y;
241			{
242			byte(((x >> 4) & 0x30) \| ((y >> 8) & 0x3));
243			byte(x & 0xff);
244			byte(y & 0xff);
245			}
246
247
248	schorsch	2.5	static void
249	greg	1.1	aedgetcap(xp, yp) /* get cursor postion */
250			int xp, yp;
251			{
252			register int c;
253			/* get cursor postition */
254			command(RCP);
255			flush();
256			c = getch();
257			*xp = (c & 0x30) << 4;
258			*yp = (c & 0x3) << 8;
259			*xp \|= getch();
260			*yp \|= getch();
261			}
262
263
264	schorsch	2.5	static void
265	greg	1.3	anewcolr(index, r, g, b) /* enter a color into our table */
266			int index;
267			int r, g, b;
268	greg	1.1	{
269	greg	1.3	command(SCT);
270			byte((index+MINPIX)&255);
271			byte(1);
272			byte(r);
273			byte(g);
274			byte(b);
275			flush();
276	greg	1.1	}
277
278
279	schorsch	2.5	static void
280	greg	1.1	longwait(t) /* longer wait */
281			int t;
282			{
283			flush();
284			sleep(t);
285			}