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* 10/5/88 |
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*/ |
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|
13 |
< |
#include <stdio.h> |
13 |
> |
#include "standard.h" |
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|
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#include <signal.h> |
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|
26 |
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#define vfork fork |
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#endif |
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|
29 |
– |
#ifndef WFLUSH |
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#define WFLUSH 30 /* flush after this many rays */ |
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– |
#endif |
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– |
|
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extern char *getpath(), *getenv(); |
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|
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int onsigio(); |
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|
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int comm_close(), comm_clear(), comm_paintr(), comm_errout(), |
34 |
< |
comm_getcur(), comm_comout(), comm_comin(); |
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> |
comm_getcur(), comm_comout(), comm_comin(), comm_flush(); |
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|
36 |
< |
struct driver comm_driver, comm_default = { |
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> |
struct driver comm_driver = { |
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comm_close, comm_clear, comm_paintr, comm_getcur, |
38 |
< |
comm_comout, comm_comin |
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> |
comm_comout, comm_comin, comm_flush |
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}; |
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|
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FILE *devin, *devout; |
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goto syserr; |
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if ((devin = fdopen(p2[0], "r")) == NULL) |
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goto syserr; |
83 |
– |
bcopy(&comm_default, &comm_driver, sizeof(comm_driver)); |
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/* verify & get resolution */ |
80 |
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putw(COM_SENDM, devout); |
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fflush(devout); |
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if (getw(devin) != COM_RECVM) |
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return(NULL); |
84 |
+ |
fread((char *)&comm_driver.pixaspect, |
85 |
+ |
sizeof(comm_driver.pixaspect), 1, devin); |
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comm_driver.xsiz = getw(devin); |
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comm_driver.ysiz = getw(devin); |
91 |
– |
fread(comm_driver.pixaspect, sizeof(comm_driver.pixaspect), 1, devin); |
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/* input handling */ |
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signal(SIGIO, onsigio); |
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/* set error vectors */ |
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COLOR col; |
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int xmin, ymin, xmax, ymax; |
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{ |
137 |
– |
extern long nrays; /* number of rays traced */ |
138 |
– |
static long lastflush = 0; /* ray count at last flush */ |
139 |
– |
|
133 |
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putc(COM_PAINTR, devout); |
134 |
< |
fwrite(col, sizeof(COLOR), 1, devout); |
134 |
> |
fwrite((char *)col, sizeof(COLOR), 1, devout); |
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putw(xmin, devout); |
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putw(ymin, devout); |
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putw(xmax, devout); |
138 |
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putw(ymax, devout); |
146 |
– |
if (nrays - lastflush >= WFLUSH) { |
147 |
– |
fflush(devout); |
148 |
– |
lastflush = nrays; |
149 |
– |
} |
139 |
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} |
140 |
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|
141 |
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|
142 |
+ |
static |
143 |
+ |
comm_flush() /* flush output to driver */ |
144 |
+ |
{ |
145 |
+ |
putc(COM_FLUSH, devout); |
146 |
+ |
fflush(devout); |
147 |
+ |
} |
148 |
+ |
|
149 |
+ |
|
150 |
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static int |
151 |
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comm_getcur(xp, yp) /* get and return cursor position */ |
152 |
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int *xp, *yp; |
175 |
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|
176 |
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|
177 |
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static |
178 |
< |
comm_comin(buf) /* read string from command line */ |
178 |
> |
comm_comin(buf, prompt) /* read string from command line */ |
179 |
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char *buf; |
180 |
+ |
char *prompt; |
181 |
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{ |
182 |
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putc(COM_COMIN, devout); |
183 |
+ |
if (prompt == NULL) |
184 |
+ |
putc(0, devout); |
185 |
+ |
else { |
186 |
+ |
putc(1, devout); |
187 |
+ |
myputs(prompt, devout); |
188 |
+ |
} |
189 |
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fflush(devout); |
190 |
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if (getc(devin) != COM_COMIN) |
191 |
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reply_error("comin"); |