--- ray/src/rt/devmain.c 1989/10/25 15:37:42 1.1 +++ ray/src/rt/devmain.c 2003/02/22 02:07:28 2.3 @@ -1,40 +1,87 @@ -/* Copyright (c) 1989 Regents of the University of California */ - #ifndef lint -static char SCCSid[] = "$SunId$ LBL"; +static const char RCSid[] = "$Id: devmain.c,v 2.3 2003/02/22 02:07:28 greg Exp $"; #endif - /* * devmain.c - main for independent drivers. * * Redefine your initialization routine to dinit. + */ + +/* ==================================================================== + * The Radiance Software License, Version 1.0 * - * 10/25/89 + * Copyright (c) 1990 - 2002 The Regents of the University of California, + * through Lawrence Berkeley National Laboratory. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes Radiance software + * (http://radsite.lbl.gov/) + * developed by the Lawrence Berkeley National Laboratory + * (http://www.lbl.gov/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Radiance," "Lawrence Berkeley National Laboratory" + * and "The Regents of the University of California" must + * not be used to endorse or promote products derived from this + * software without prior written permission. For written + * permission, please contact radiance@radsite.lbl.gov. + * + * 5. Products derived from this software may not be called "Radiance", + * nor may "Radiance" appear in their name, without prior written + * permission of Lawrence Berkeley National Laboratory. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of Lawrence Berkeley National Laboratory. For more + * information on Lawrence Berkeley National Laboratory, please see + * . */ -#include +#include "standard.h" -#include - #include "color.h" #include "driver.h" -int (*wrnvec)(), (*errvec)(), (*cmdvec)(); /* error vectors, unused */ - struct driver *dev = NULL; /* output device */ FILE *devin, *devout; /* communications channels */ -int notified = 0; /* notified parent of input? */ - char *progname; /* driver name */ -int r_clear(), r_paintr(), r_getcur(), r_comout(), r_comin(); +int r_clear(), r_paintr(), r_getcur(), r_comout(), r_comin(), r_flush(); int (*dev_func[NREQUESTS])() = { /* request handlers */ r_clear, r_paintr, - r_getcur, r_comout, r_comin + r_getcur, r_comout, + r_comin, r_flush }; @@ -47,28 +94,25 @@ char *argv[]; /* set up I/O */ progname = argv[0]; if (argc < 3) { - stderr_v("arg count\n"); + eputs("arg count\n"); quit(1); } devin = fdopen(atoi(argv[1]), "r"); devout = fdopen(atoi(argv[2]), "w"); if (devin == NULL || devout == NULL || getw(devin) != COM_SENDM) { - stderr_v("connection failure\n"); + eputs("connection failure\n"); quit(1); } /* open device */ - if ((dev = dinit(argv[0], argv[3])) == NULL) { - stderr_v("initialization failure\n"); + if ((dev = dinit(argv[0], argv[3])) == NULL) quit(1); - } putw(COM_RECVM, devout); /* verify initialization */ - putw(dev->xsiz, devout); - putw(dev->ysiz, devout); + sendstate(); fflush(devout); /* loop on requests */ while ((com = getc(devin)) != EOF) { if (com >= NREQUESTS || dev_func[com] == NULL) { - stderr_v("invalid request\n"); + eputs("invalid request\n"); quit(1); } (*dev_func[com])(); /* process request */ @@ -77,6 +121,7 @@ char *argv[]; } +void quit(code) /* close device and exit */ int code; { @@ -101,18 +146,23 @@ r_paintr() /* paint a rectangle */ COLOR col; int xmin, ymin, xmax, ymax; - fread(col, sizeof(COLOR), 1, devin); + fread((char *)col, sizeof(COLOR), 1, devin); xmin = getw(devin); ymin = getw(devin); xmax = getw(devin); ymax = getw(devin); (*dev->paintr)(col, xmin, ymin, xmax, ymax); - /* check for input */ - if (dev->inpready > notified) { - kill(getppid(), SIGIO); - notified = dev->inpready; - } } +r_flush() /* flush output */ +{ + if (dev->flush != NULL) + (*dev->flush)(); + putc(COM_FLUSH, devout); + sendstate(); + fflush(devout); +} + + r_getcur() /* get and return cursor position */ { int c; @@ -143,15 +193,20 @@ r_comout() /* print string to command line */ r_comin() /* read string from command line */ { - char buf[256]; + char buf[256], *prompt; + /* get prompt */ + if (getc(devin)) { + mygets(buf, devin); + prompt = buf; + } else + prompt = NULL; /* get string */ - (*dev->comin)(buf); + (*dev->comin)(buf, prompt); /* reply */ putc(COM_COMIN, devout); myputs(buf, devout); + sendstate(); fflush(devout); - /* reset notify */ - notified = 0; } @@ -178,25 +233,30 @@ register FILE *fp; } -repaint(xmin, ymin, xmax, ymax) /* repaint section of display */ -int xmin, ymin, xmax, ymax; -{ - stderr_v("repaint called!\n"); /* no can do! */ -} - - -stderr_v(s) /* put string to stderr */ +void +eputs(s) /* put string to stderr */ register char *s; { - static int inline = 0; + static int midline = 0; - if (!inline++) { + if (!*s) + return; + if (!midline++) { fputs(progname, stderr); fputs(": ", stderr); } fputs(s, stderr); - if (*s && s[strlen(s)-1] == '\n') { + if (s[strlen(s)-1] == '\n') { fflush(stderr); - inline = 0; + midline = 0; } +} + + +sendstate() /* send driver state variables */ +{ + fwrite((char *)&dev->pixaspect, sizeof(dev->pixaspect), 1, devout); + putw(dev->xsiz, devout); + putw(dev->ysiz, devout); + putw(dev->inpready, devout); }