--- ray/src/rt/devmain.c 1989/11/01 16:12:22 1.3
+++ ray/src/rt/devmain.c 2003/02/22 02:07:28 2.3
@@ -1,49 +1,90 @@
-/* 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 */
-
-long nrays = 0; /* fake it */
-
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(), r_mycomin();
+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
};
-char mybuf[512] = "";
-char *mybufp();
-
-
main(argc, argv) /* set up communications and main loop */
int argc;
char *argv[];
@@ -53,26 +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)
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 */
@@ -81,6 +121,7 @@ char *argv[];
}
+void
quit(code) /* close device and exit */
int code;
{
@@ -105,19 +146,23 @@ r_paintr() /* paint a rectangle */
COLOR col;
int xmin, ymin, xmax, ymax;
- nrays += 5; /* pretend */
- 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 (!notified && dev->inpready > 0) {
- notified = 1;
- kill(getppid(), SIGIO);
- }
}
+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;
@@ -148,15 +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;
}
@@ -183,59 +233,30 @@ register FILE *fp;
}
-r_mycomin() /* get command from my buffer */
-{
- register char *cp;
- /* get next command */
- for (cp = mybuf; *cp != '\n'; cp++)
- ;
- *cp++ = '\0';
- (*dev->comout)(mybuf); /* echo my command */
- /* send it as reply */
- putc(COM_COMIN, devout);
- myputs(mybuf, devout);
- fflush(devout);
- /* get next command */
- (*dev->comout)("\n");
- strcpy(mybuf, cp);
- if (mybuf[0])
- kill(getppid(), SIGIO); /* signal more */
- else
- dev_func[COM_COMIN] = r_comin; /* else reset */
-}
-
-
-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;
}
}
-char *
-mybufp() /* return buffer for my command */
+sendstate() /* send driver state variables */
{
- if (dev_func[COM_COMIN] != r_mycomin) {
- dev_func[COM_COMIN] = r_mycomin;
- kill(getppid(), SIGIO);
- }
- return(mybuf+strlen(mybuf));
-}
-
-
-repaint(xmin, ymin, xmax, ymax) /* repaint section of display */
-int xmin, ymin, xmax, ymax;
-{
- sprintf(mybufp(), "repaint %d %d %d %d\n",
- xmin, ymin, xmax, ymax);
+ fwrite((char *)&dev->pixaspect, sizeof(dev->pixaspect), 1, devout);
+ putw(dev->xsiz, devout);
+ putw(dev->ysiz, devout);
+ putw(dev->inpready, devout);
}