| 1 |
greg |
1.1 |
/* Copyright (c) 1988 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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#endif
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/*
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* sundev.c - standalone driver for Sunwindows.
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*
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* 10/3/88
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <suntool/sunview.h>
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#include <suntool/canvas.h>
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#include <suntool/tty.h>
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#include "color.h"
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#include "driver.h"
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short icon_image[] = {
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#include "suntools.icon"
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};
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DEFINE_ICON_FROM_IMAGE(sun_icon, icon_image);
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#ifndef TTYPROG
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#define TTYPROG "sun.com" /* tty program */
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#endif
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#define GAMMA 2.0 /* exponent for color correction */
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#define COMLH 3 /* number of command lines */
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#define hashcolr(c) ((67*(c)[RED]+59*(c)[GRN]+71*(c)[BLU])%NCOLORS)
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int colres = 128; /* color resolution */
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COLR colrmap[256]; /* our color mapping */
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#define NCOLORS 251 /* color table size (prime) */
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#define FIRSTCOLOR 2 /* first usable entry */
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COLR colrtbl[NCOLORS]; /* our color table */
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int sun_clear(), sun_paintr(), sun_getcur(),
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sun_comout(), sun_comin();
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int (*dev_func[NREQUESTS])() = { /* request handlers */
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sun_clear, sun_paintr, sun_getcur,
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sun_comout, sun_comin
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};
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FILE *ttyin;
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Frame frame = 0;
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Tty tty = 0;
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Canvas canvas = 0;
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int xres = 0, yres = 0;
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char *progname;
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main(argc, argv)
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int argc;
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char *argv[];
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{
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extern Notify_value my_notice_destroy();
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char *ttyargv[4], arg1[10], arg2[10];
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int pd[2];
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int com;
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progname = argv[0];
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frame = window_create(0, FRAME,
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FRAME_LABEL, argc > 1 ? argv[1] : argv[0],
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FRAME_ICON, &sun_icon,
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WIN_X, 0, WIN_Y, 0,
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0);
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if (frame == 0)
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quit("cannot create frame");
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if (pipe(pd) == -1)
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quit("cannot create pipe");
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sprintf(arg1, "%d", getppid());
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sprintf(arg2, "%d", pd[1]);
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ttyargv[0] = TTYPROG;
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ttyargv[1] = arg1;
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ttyargv[2] = arg2;
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ttyargv[3] = NULL;
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#ifdef BSD
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fcntl(pd[0], F_SETFD, 1);
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#endif
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tty = window_create(frame, TTY,
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TTY_ARGV, ttyargv,
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WIN_ROWS, COMLH,
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0);
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if (tty == 0)
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quit("cannot create tty subwindow");
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close(pd[1]);
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if ((ttyin = fdopen(pd[0], "r")) == NULL)
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quit("cannot open tty");
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canvas = window_create(frame, CANVAS,
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CANVAS_RETAINED, FALSE,
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WIN_INPUT_DESIGNEE, window_get(tty,WIN_DEVICE_NUMBER),
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WIN_CONSUME_PICK_EVENTS, WIN_NO_EVENTS,
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MS_LEFT, MS_MIDDLE, MS_RIGHT, 0,
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0);
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if (canvas == 0)
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quit("cannot create canvas");
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if (getmap() < 0)
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quit("not a color screen");
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window_set(canvas, CANVAS_RETAINED, TRUE, 0);
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notify_interpose_destroy_func(frame, my_notice_destroy);
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while ((com = getc(stdin)) != EOF) { /* loop on requests */
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if (com >= NREQUESTS || dev_func[com] == NULL)
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quit("invalid request");
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(*dev_func[com])();
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}
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quit(NULL);
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}
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quit(msg) /* exit */
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char *msg;
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{
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if (msg != NULL) {
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fprintf(stderr, "%s: %s\n", progname, msg);
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greg |
1.2 |
kill(getppid(), SIGPIPE);
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greg |
1.1 |
exit(1);
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}
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exit(0);
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}
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Notify_value
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my_notice_destroy(fr, st) /* we're on our way out */
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Frame fr;
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Destroy_status st;
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{
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if (st != DESTROY_CHECKING) {
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greg |
1.3 |
kill((int)window_get(tty, TTY_PID), SIGPIPE);
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kill(getppid(), SIGPIPE);
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greg |
1.1 |
}
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return(notify_next_destroy_func(fr, st));
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}
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sun_clear() /* clear our canvas */
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{
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register Pixwin *pw;
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int nwidth, nheight;
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fread(&nwidth, sizeof(nwidth), 1, stdin);
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fread(&nheight, sizeof(nheight), 1, stdin);
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pw = canvas_pixwin(canvas);
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if (nwidth != xres || nheight != yres) {
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window_set(frame, WIN_SHOW, FALSE, 0);
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window_set(canvas, CANVAS_AUTO_SHRINK, TRUE,
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CANVAS_AUTO_EXPAND, TRUE, 0);
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window_set(canvas, WIN_WIDTH, nwidth, WIN_HEIGHT, nheight, 0);
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window_set(canvas, CANVAS_AUTO_SHRINK, FALSE,
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CANVAS_AUTO_EXPAND, FALSE, 0);
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window_fit(frame);
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window_set(frame, WIN_SHOW, TRUE, 0);
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notify_do_dispatch();
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xres = nwidth;
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yres = nheight;
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}
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pw_writebackground(pw, 0, 0, xres, xres, PIX_SRC);
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newmap();
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}
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sun_paintr() /* fill a rectangle */
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{
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COLOR col;
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int pval;
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int xmin, ymin, xmax, ymax;
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register Pixwin *pw;
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fread(col, sizeof(COLOR), 1, stdin);
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fread(&xmin, sizeof(xmin), 1, stdin);
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fread(&ymin, sizeof(ymin), 1, stdin);
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fread(&xmax, sizeof(xmax), 1, stdin);
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fread(&ymax, sizeof(ymax), 1, stdin);
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pval = pixel(col);
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pw = canvas_pixwin(canvas);
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pw_rop(pw, xmin, yres-ymax, xmax-xmin, ymax-ymin,
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PIX_SRC|PIX_COLOR(pval), NULL, 0, 0);
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}
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sun_comout() /* output a string to command line */
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{
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char out[256];
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mygets(out, stdin);
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ttyputs(out);
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}
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sun_comin() /* input a string from the command line */
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{
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char buf[256];
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/* echo characters */
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do {
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mygets(buf, ttyin);
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ttyputs(buf);
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} while (buf[0]);
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/* get result */
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mygets(buf, ttyin);
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/* send reply */
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putc(COM_COMIN, stdout);
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myputs(buf, stdout);
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fflush(stdout);
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}
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sun_getcur() /* get cursor position */
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{
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greg |
1.3 |
Event ev;
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greg |
1.1 |
int xpos, ypos;
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int c;
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notify_no_dispatch(); /* allow read to block */
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window_set(canvas, WIN_CONSUME_KBD_EVENT, WIN_ASCII_EVENTS, 0);
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greg |
1.3 |
again:
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if (window_read_event(canvas, &ev) == -1) {
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notify_perror();
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quit("window event read error");
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}
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c = event_id(&ev);
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switch (c) {
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case MS_LEFT:
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c = MB1;
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greg |
1.1 |
break;
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greg |
1.3 |
case MS_MIDDLE:
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c = MB2;
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break;
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case MS_RIGHT:
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c = MB3;
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break;
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default:
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if (c < ASCII_FIRST || c > ASCII_LAST)
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goto again;
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break;
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greg |
1.1 |
}
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greg |
1.3 |
xpos = event_x(&ev);
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ypos = yres-1 - event_y(&ev);
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greg |
1.1 |
window_set(canvas, WIN_IGNORE_KBD_EVENT, WIN_ASCII_EVENTS, 0);
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notify_do_dispatch();
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putc(COM_GETCUR, stdout);
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putc(c, stdout);
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fwrite(&xpos, sizeof(xpos), 1, stdout);
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fwrite(&ypos, sizeof(ypos), 1, stdout);
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fflush(stdout);
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}
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mygets(s, fp) /* get string from file (with nul) */
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register char *s;
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register FILE *fp;
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{
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register int c;
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while ((c = getc(fp)) != EOF)
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if ((*s++ = c) == '\0')
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return;
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*s = '\0';
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}
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myputs(s, fp) /* put string to file (with nul) */
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register char *s;
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register FILE *fp;
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{
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do
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putc(*s, fp);
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while (*s++);
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}
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| 285 |
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ttyputs(s) /* put string out to tty subwindow */
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register char *s;
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{
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char buf[256];
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register char *cp;
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for (cp = buf; *s; s++) {
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if (*s == '\n')
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*cp++ = '\r';
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*cp++ = *s;
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}
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ttysw_output(tty, buf, cp-buf);
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}
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int
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pixel(col) /* return pixel value for color */
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COLOR col;
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| 304 |
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{
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| 305 |
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COLR clr;
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| 306 |
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register int ndx;
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| 307 |
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| 308 |
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mapcolor(clr, col);
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| 309 |
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while ((ndx = insertcolr(clr)) < 0) {
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| 310 |
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reduce_colres();
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| 311 |
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mapcolor(clr, col);
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| 312 |
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}
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| 313 |
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return(ndx+FIRSTCOLOR);
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| 314 |
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}
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| 315 |
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| 316 |
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| 317 |
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int
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| 318 |
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insertcolr(clr) /* insert a new color */
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| 319 |
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register COLR clr;
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| 320 |
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{
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| 321 |
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int hval;
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| 322 |
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register int ndx, i;
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| 323 |
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| 324 |
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hval = ndx = hashcolr(clr);
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| 325 |
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| 326 |
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for (i = 1; i < NCOLORS; i++) {
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| 327 |
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if (colrtbl[ndx][EXP] == 0) {
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| 328 |
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colrtbl[ndx][RED] = clr[RED];
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| 329 |
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colrtbl[ndx][GRN] = clr[GRN];
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| 330 |
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colrtbl[ndx][BLU] = clr[BLU];
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| 331 |
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colrtbl[ndx][EXP] = COLXS;
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| 332 |
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newcolr(ndx, clr);
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| 333 |
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return(ndx);
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| 334 |
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}
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| 335 |
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if ( colrtbl[ndx][RED] == clr[RED] &&
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| 336 |
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colrtbl[ndx][GRN] == clr[GRN] &&
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| 337 |
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colrtbl[ndx][BLU] == clr[BLU] )
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| 338 |
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return(ndx);
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| 339 |
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ndx = (hval + i*i) % NCOLORS;
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| 340 |
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}
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| 341 |
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return(-1);
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| 342 |
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}
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| 343 |
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| 344 |
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| 345 |
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newcolr(ndx, clr) /* enter a color into hardware table */
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| 346 |
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int ndx;
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| 347 |
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COLR clr;
|
| 348 |
|
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{
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| 349 |
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register Pixwin *pw;
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| 350 |
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| 351 |
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pw = canvas_pixwin(canvas);
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| 352 |
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pw_putcolormap(pw, ndx+FIRSTCOLOR, 1,
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| 353 |
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&clr[RED], &clr[GRN], &clr[BLU]);
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| 354 |
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pw = (Pixwin *)window_get(tty, WIN_PIXWIN);
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| 355 |
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pw_putcolormap(pw, ndx+FIRSTCOLOR, 1,
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| 356 |
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&clr[RED], &clr[GRN], &clr[BLU]);
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| 357 |
|
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}
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| 358 |
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| 359 |
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|
| 360 |
|
|
reduce_colres() /* reduce the color resolution */
|
| 361 |
|
|
{
|
| 362 |
|
|
COLR oldtbl[NCOLORS];
|
| 363 |
|
|
unsigned char pixmap[256];
|
| 364 |
|
|
Pixwin *pw;
|
| 365 |
|
|
register int i, j;
|
| 366 |
|
|
register unsigned char *p;
|
| 367 |
|
|
|
| 368 |
|
|
ttyputs("remapping colors...\n");
|
| 369 |
|
|
bcopy(colrtbl, oldtbl, sizeof(oldtbl));
|
| 370 |
|
|
colres >>= 1;
|
| 371 |
|
|
newmap();
|
| 372 |
|
|
for (i = 0; i < 256; i++)
|
| 373 |
|
|
pixmap[i] = i;
|
| 374 |
|
|
for (i = 0; i < NCOLORS; i++)
|
| 375 |
|
|
if (oldtbl[i][EXP] != 0) {
|
| 376 |
|
|
for (j = 0; j < 3; j++)
|
| 377 |
|
|
oldtbl[i][j] = ((oldtbl[i][j]*colres/256) *
|
| 378 |
|
|
256 + 128)/colres;
|
| 379 |
|
|
pixmap[i+FIRSTCOLOR] = insertcolr(oldtbl[i])+FIRSTCOLOR;
|
| 380 |
|
|
}
|
| 381 |
|
|
pw = canvas_pixwin(canvas);
|
| 382 |
|
|
/* I probably should get my own memory */
|
| 383 |
|
|
p = (unsigned char *)mpr_d(pw->pw_prretained)->md_image;
|
| 384 |
|
|
for (j = 0; j < yres; j++) {
|
| 385 |
|
|
for (i = 0; i < xres; i++) {
|
| 386 |
|
|
*p = pixmap[*p];
|
| 387 |
|
|
p++;
|
| 388 |
|
|
}
|
| 389 |
|
|
if (xres&1) /* 16-bit boundaries */
|
| 390 |
|
|
p++;
|
| 391 |
|
|
}
|
| 392 |
|
|
pw_rop(pw, 0, 0, xres, yres, PIX_SRC, pw->pw_prretained, 0, 0);
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
|
| 396 |
|
|
mapcolor(clr, col) /* map to our color space */
|
| 397 |
|
|
COLR clr;
|
| 398 |
|
|
COLOR col;
|
| 399 |
|
|
{
|
| 400 |
|
|
register int i, p;
|
| 401 |
|
|
/* compute color table value */
|
| 402 |
|
|
for (i = 0; i < 3; i++) {
|
| 403 |
|
|
p = colval(col,i) * 255.0 + 0.5;
|
| 404 |
|
|
if (p < 0) p = 0;
|
| 405 |
|
|
else if (p > 255) p = 255;
|
| 406 |
|
|
clr[i] = colrmap[p][i];
|
| 407 |
|
|
}
|
| 408 |
|
|
clr[EXP] = COLXS;
|
| 409 |
|
|
}
|
| 410 |
|
|
|
| 411 |
|
|
|
| 412 |
|
|
getmap() /* allocate color map segments */
|
| 413 |
|
|
{
|
| 414 |
|
|
char cmsname[20];
|
| 415 |
|
|
unsigned char red[256], green[256], blue[256];
|
| 416 |
|
|
register Pixwin *pw;
|
| 417 |
|
|
register int i;
|
| 418 |
|
|
|
| 419 |
|
|
for (i = 0; i < 256; i++)
|
| 420 |
|
|
red[i] = green[i] = blue[i] = 128;
|
| 421 |
|
|
red[0] = green[0] = blue[0] = 255;
|
| 422 |
|
|
red[1] = green[1] = blue[1] = 0;
|
| 423 |
|
|
red[255] = green[255] = blue[255] = 0;
|
| 424 |
|
|
red[254] = green[254] = blue[254] = 255;
|
| 425 |
|
|
red[253] = green[253] = blue[253] = 0;
|
| 426 |
|
|
/* name shared segment */
|
| 427 |
|
|
sprintf(cmsname, "rv%d", getpid());
|
| 428 |
|
|
/* set canvas */
|
| 429 |
|
|
pw = canvas_pixwin(canvas);
|
| 430 |
|
|
if (pw->pw_pixrect->pr_depth < 8)
|
| 431 |
|
|
return(-1);
|
| 432 |
|
|
pw_setcmsname(pw, cmsname);
|
| 433 |
|
|
pw_putcolormap(pw, 0, 256, red, green, blue);
|
| 434 |
|
|
/* set tty subwindow */
|
| 435 |
|
|
pw = (Pixwin *)window_get(tty, WIN_PIXWIN);
|
| 436 |
|
|
pw_setcmsname(pw, cmsname);
|
| 437 |
|
|
pw_putcolormap(pw, 0, 256, red, green, blue);
|
| 438 |
|
|
/* set frame */
|
| 439 |
|
|
pw = (Pixwin *)window_get(frame, WIN_PIXWIN);
|
| 440 |
|
|
pw_setcmsname(pw, cmsname);
|
| 441 |
|
|
pw_putcolormap(pw, 0, 256, red, green, blue);
|
| 442 |
|
|
|
| 443 |
|
|
return(0);
|
| 444 |
|
|
}
|
| 445 |
|
|
|
| 446 |
|
|
|
| 447 |
|
|
newmap() /* initialize our color table */
|
| 448 |
|
|
{
|
| 449 |
|
|
double pow();
|
| 450 |
|
|
int val;
|
| 451 |
|
|
register int i;
|
| 452 |
|
|
|
| 453 |
|
|
for (i = 0; i < 256; i++) {
|
| 454 |
|
|
val = pow(i/256.0, 1.0/GAMMA) * colres;
|
| 455 |
|
|
val = (val*256 + 128) / colres;
|
| 456 |
|
|
colrmap[i][RED] = colrmap[i][GRN] = colrmap[i][BLU] = val;
|
| 457 |
|
|
colrmap[i][EXP] = COLXS;
|
| 458 |
|
|
}
|
| 459 |
|
|
for (i = 0; i < NCOLORS; i++)
|
| 460 |
|
|
colrtbl[i][EXP] = 0;
|
| 461 |
|
|
}
|
