| 1 |
greg |
1.1 |
#ifndef lint
|
| 2 |
greg |
1.6 |
static const char RCSid[] = "$Id: d48c.c,v 1.5 2004/03/28 20:33:13 schorsch Exp $";
|
| 3 |
greg |
1.1 |
#endif
|
| 4 |
greg |
1.2 |
/*
|
| 5 |
greg |
1.1 |
* d48c.c - driver for dicomed D48 film recorder w/ color optics.
|
| 6 |
|
|
*
|
| 7 |
|
|
* 3/26/87
|
| 8 |
|
|
*/
|
| 9 |
|
|
|
| 10 |
|
|
#include <stdio.h>
|
| 11 |
schorsch |
1.5 |
#include <string.h>
|
| 12 |
greg |
1.1 |
#include <signal.h>
|
| 13 |
|
|
|
| 14 |
schorsch |
1.5 |
#include "paths.h"
|
| 15 |
schorsch |
1.4 |
#include "rterror.h"
|
| 16 |
greg |
1.1 |
#include "color.h"
|
| 17 |
|
|
|
| 18 |
|
|
|
| 19 |
|
|
#define HSIZE 4096 /* device width */
|
| 20 |
|
|
#define VSIZE 4096 /* device height */
|
| 21 |
|
|
|
| 22 |
|
|
#define MAXMULT 15 /* maximum element size */
|
| 23 |
|
|
|
| 24 |
|
|
/* dicomed commands */
|
| 25 |
|
|
#define O_ECS 0 /* encoded command select */
|
| 26 |
|
|
#define O_CONF 03400 /* configuration code */
|
| 27 |
|
|
#define O_FES 020000 /* function element select */
|
| 28 |
|
|
#define O_VPA 040000 /* vector or position absolute */
|
| 29 |
|
|
#define O_ICS 0100000 /* initial condition select */
|
| 30 |
|
|
#define O_PES 0120000 /* point element select */
|
| 31 |
|
|
|
| 32 |
|
|
/* ECS commands */
|
| 33 |
|
|
#define ECS_FA 07 /* film advance */
|
| 34 |
|
|
#define ECS_RED 011 /* select red filter */
|
| 35 |
|
|
#define ECS_GRN 012 /* select green filter */
|
| 36 |
|
|
#define ECS_BLU 014 /* select blue filter */
|
| 37 |
|
|
#define ECS_NEU 017 /* select neutral filter */
|
| 38 |
|
|
#define ECS_RAS 020 /* select raster mode */
|
| 39 |
|
|
#define ECS_COL 022 /* select color mode */
|
| 40 |
|
|
#define ECS_BW 023 /* select black and white mode */
|
| 41 |
|
|
#define ECS_BT 024 /* bypass translation tables */
|
| 42 |
|
|
|
| 43 |
|
|
/* FES functions */
|
| 44 |
|
|
#define FES_RE 030000 /* raster element */
|
| 45 |
|
|
#define FES_RL 0170000 /* run length */
|
| 46 |
|
|
|
| 47 |
|
|
/* ICS fields */
|
| 48 |
|
|
#define ICS_HVINT 040 /* interchange h and v axes */
|
| 49 |
|
|
#define ICS_VREV 0100 /* reverse v axis direction */
|
| 50 |
|
|
#define ICS_HREV 0200 /* reverse h axis direction */
|
| 51 |
|
|
|
| 52 |
|
|
int nrows; /* number of rows for output */
|
| 53 |
|
|
int ncols; /* number of columns for output */
|
| 54 |
|
|
|
| 55 |
|
|
int mult; /* number of h/v points per elem. */
|
| 56 |
|
|
|
| 57 |
|
|
int hhome; /* offset for h */
|
| 58 |
|
|
int vhome; /* offset for v */
|
| 59 |
|
|
|
| 60 |
|
|
/* dicomed configurations */
|
| 61 |
|
|
#define C_POLAROID 0 /* polaroid print */
|
| 62 |
|
|
#define C_35FRES 1 /* 35mm full resolution */
|
| 63 |
|
|
#define C_35FFRA 2 /* 35mm full frame */
|
| 64 |
|
|
#define C_SHEET 3 /* 4X5 sheet film */
|
| 65 |
|
|
|
| 66 |
|
|
#define NCONF 4 /* number of configurations */
|
| 67 |
|
|
|
| 68 |
|
|
struct config {
|
| 69 |
|
|
char *name; /* configuration name */
|
| 70 |
|
|
int ccode; /* configuration code */
|
| 71 |
|
|
int icsfield; /* initial condition select */
|
| 72 |
|
|
int hbeg, vbeg; /* coord. origin */
|
| 73 |
|
|
int hsiz, vsiz; /* dimensions */
|
| 74 |
|
|
} ctab[NCONF] = {
|
| 75 |
|
|
{ "polaroid", 11, ICS_HVINT|ICS_VREV, 0, 0, 4096, 4096 },
|
| 76 |
|
|
{ "35r", 5, 0, 0, 0, 4096, 4096 },
|
| 77 |
|
|
{ "35f", 7, 0, 39, 692, 4018, 2712 },
|
| 78 |
|
|
{ "sheet", 10, ICS_HVINT|ICS_VREV, 0, 0, 4096, 4096 },
|
| 79 |
|
|
};
|
| 80 |
|
|
|
| 81 |
|
|
#define NEU 3 /* neutral color */
|
| 82 |
|
|
|
| 83 |
|
|
struct filter {
|
| 84 |
|
|
float cv[3]; /* filter color vector */
|
| 85 |
|
|
char *fn; /* file name for this color */
|
| 86 |
|
|
FILE *fp; /* stream for this color */
|
| 87 |
|
|
} ftab[4] = {
|
| 88 |
|
|
{ {1.0, 0.0, 0.0}, NULL, NULL }, /* red */
|
| 89 |
|
|
{ {0.0, 1.0, 0.0}, NULL, NULL }, /* green */
|
| 90 |
|
|
{ {0.0, 0.0, 1.0}, NULL, NULL }, /* blue */
|
| 91 |
|
|
{ {0.3, 0.59, 0.11}, NULL, NULL }, /* neutral */
|
| 92 |
|
|
};
|
| 93 |
|
|
|
| 94 |
|
|
#define f_val(col,f) ( colval(col,0)*ftab[f].cv[0] + \
|
| 95 |
|
|
colval(col,1)*ftab[f].cv[1] + \
|
| 96 |
|
|
colval(col,2)*ftab[f].cv[2] )
|
| 97 |
|
|
|
| 98 |
|
|
float neumap[] = { /* neutral map, log w/ E6 */
|
| 99 |
|
|
.0, .0,
|
| 100 |
|
|
.0004, .059,
|
| 101 |
|
|
.0008, .122,
|
| 102 |
|
|
.0018, .184,
|
| 103 |
|
|
.0033, .247,
|
| 104 |
|
|
.0061, .310,
|
| 105 |
|
|
.0119, .373,
|
| 106 |
|
|
.0202, .435,
|
| 107 |
|
|
.0373, .498,
|
| 108 |
|
|
.065, .561,
|
| 109 |
|
|
.113, .624,
|
| 110 |
|
|
.199, .686,
|
| 111 |
|
|
.300, .749,
|
| 112 |
|
|
.432, .812,
|
| 113 |
|
|
.596, .875,
|
| 114 |
|
|
.767, .937,
|
| 115 |
|
|
1.000, 1.000,
|
| 116 |
|
|
};
|
| 117 |
|
|
|
| 118 |
|
|
|
| 119 |
|
|
int docolor = 1; /* color? */
|
| 120 |
|
|
|
| 121 |
|
|
int cftype = C_35FFRA; /* configuration type */
|
| 122 |
|
|
|
| 123 |
|
|
char *progname; /* program name */
|
| 124 |
|
|
|
| 125 |
schorsch |
1.5 |
static void settype(char *cname);
|
| 126 |
|
|
static void dofile(char *fname);
|
| 127 |
|
|
static void d_init(void);
|
| 128 |
|
|
static void scanout(COLOR *scan, int y);
|
| 129 |
|
|
static void d_done(void);
|
| 130 |
|
|
static void runlength(COLOR *scan, int f);
|
| 131 |
|
|
static double mapfilter(COLOR col, int f);
|
| 132 |
|
|
static void transfer(FILE *fin, FILE *fout);
|
| 133 |
|
|
|
| 134 |
greg |
1.1 |
|
| 135 |
schorsch |
1.5 |
int
|
| 136 |
|
|
main(
|
| 137 |
|
|
int argc,
|
| 138 |
|
|
char *argv[]
|
| 139 |
|
|
)
|
| 140 |
greg |
1.1 |
{
|
| 141 |
|
|
int i;
|
| 142 |
|
|
|
| 143 |
|
|
if (signal(SIGINT, quit) == SIG_IGN)
|
| 144 |
|
|
signal(SIGINT, SIG_IGN);
|
| 145 |
schorsch |
1.4 |
#ifdef SIGHUP
|
| 146 |
greg |
1.1 |
if (signal(SIGHUP, quit) == SIG_IGN)
|
| 147 |
|
|
signal(SIGINT, SIG_IGN);
|
| 148 |
schorsch |
1.4 |
#endif
|
| 149 |
greg |
1.1 |
signal(SIGTERM, quit);
|
| 150 |
schorsch |
1.4 |
#ifdef SIGPIPE
|
| 151 |
greg |
1.1 |
signal(SIGPIPE, quit);
|
| 152 |
schorsch |
1.4 |
#endif
|
| 153 |
|
|
#ifdef SIGXCPU
|
| 154 |
greg |
1.1 |
signal(SIGXCPU, quit);
|
| 155 |
schorsch |
1.4 |
#endif
|
| 156 |
|
|
#ifdef SIGXFSZ
|
| 157 |
greg |
1.1 |
signal(SIGXFSZ, quit);
|
| 158 |
schorsch |
1.4 |
#endif
|
| 159 |
greg |
1.1 |
|
| 160 |
|
|
progname = argv[0];
|
| 161 |
|
|
|
| 162 |
|
|
for (i = 1; i < argc && argv[i][0] == '-'; i++)
|
| 163 |
|
|
switch (argv[i][1]) {
|
| 164 |
|
|
case 'c': /* color */
|
| 165 |
|
|
docolor = 1;
|
| 166 |
|
|
break;
|
| 167 |
|
|
case 'b': /* black and white */
|
| 168 |
|
|
docolor = 0;
|
| 169 |
|
|
break;
|
| 170 |
|
|
case 't': /* type */
|
| 171 |
|
|
settype(argv[++i]);
|
| 172 |
|
|
break;
|
| 173 |
|
|
default:
|
| 174 |
|
|
fprintf(stderr, "%s: Unknown option: %s\n",
|
| 175 |
|
|
progname, argv[i]);
|
| 176 |
|
|
quit(1);
|
| 177 |
|
|
break;
|
| 178 |
|
|
}
|
| 179 |
|
|
|
| 180 |
|
|
if (i < argc)
|
| 181 |
|
|
for ( ; i < argc; i++)
|
| 182 |
|
|
dofile(argv[i]);
|
| 183 |
|
|
else
|
| 184 |
|
|
dofile(NULL);
|
| 185 |
|
|
|
| 186 |
|
|
quit(0);
|
| 187 |
schorsch |
1.5 |
return 0; /* pro forma return */
|
| 188 |
greg |
1.1 |
}
|
| 189 |
|
|
|
| 190 |
|
|
|
| 191 |
schorsch |
1.5 |
static void
|
| 192 |
|
|
settype( /* set configuration type */
|
| 193 |
|
|
char *cname
|
| 194 |
|
|
)
|
| 195 |
greg |
1.1 |
{
|
| 196 |
|
|
for (cftype = 0; cftype < NCONF; cftype++)
|
| 197 |
|
|
if (!strcmp(cname, ctab[cftype].name))
|
| 198 |
|
|
return;
|
| 199 |
|
|
|
| 200 |
|
|
fprintf(stderr, "%s: Unknown type: %s\n", progname, cname);
|
| 201 |
|
|
quit(1);
|
| 202 |
|
|
}
|
| 203 |
|
|
|
| 204 |
|
|
|
| 205 |
greg |
1.3 |
void
|
| 206 |
schorsch |
1.4 |
quit(int code) /* quit program */
|
| 207 |
greg |
1.1 |
{
|
| 208 |
|
|
int i;
|
| 209 |
|
|
|
| 210 |
|
|
for (i = 0; i < 4; i++)
|
| 211 |
|
|
if (ftab[i].fn != NULL)
|
| 212 |
|
|
unlink(ftab[i].fn);
|
| 213 |
|
|
exit(code);
|
| 214 |
|
|
}
|
| 215 |
|
|
|
| 216 |
|
|
|
| 217 |
schorsch |
1.5 |
static void
|
| 218 |
|
|
dofile( /* convert file to dicomed format */
|
| 219 |
|
|
char *fname
|
| 220 |
|
|
)
|
| 221 |
greg |
1.1 |
{
|
| 222 |
|
|
FILE *fin;
|
| 223 |
|
|
char sbuf[128];
|
| 224 |
|
|
COLOR scanline[HSIZE];
|
| 225 |
|
|
int i;
|
| 226 |
|
|
|
| 227 |
|
|
if (fname == NULL) {
|
| 228 |
|
|
fin = stdin;
|
| 229 |
|
|
fname = "<stdin>";
|
| 230 |
|
|
} else if ((fin = fopen(fname, "r")) == NULL) {
|
| 231 |
|
|
fprintf(stderr, "%s: Cannot open: %s\n", progname, fname);
|
| 232 |
|
|
quit(1);
|
| 233 |
|
|
}
|
| 234 |
|
|
/* discard header */
|
| 235 |
|
|
while (fgets(sbuf, sizeof(sbuf), fin) != NULL && sbuf[0] != '\n')
|
| 236 |
|
|
;
|
| 237 |
|
|
/* get picture size */
|
| 238 |
|
|
if (fgets(sbuf, sizeof(sbuf), fin) == NULL ||
|
| 239 |
|
|
sscanf(sbuf, "-Y %d +X %d\n", &nrows, &ncols) != 2) {
|
| 240 |
|
|
fprintf(stderr, "%s: Bad picture size: %s\n", progname, fname);
|
| 241 |
|
|
quit(1);
|
| 242 |
|
|
}
|
| 243 |
|
|
|
| 244 |
|
|
mult = ctab[cftype].hsiz / ncols;
|
| 245 |
|
|
if (ctab[cftype].vsiz / nrows < mult)
|
| 246 |
|
|
mult = ctab[cftype].vsiz / nrows;
|
| 247 |
|
|
|
| 248 |
|
|
if (mult < 1) {
|
| 249 |
|
|
fprintf(stderr, "%s: Resolution mismatch: %s\n",
|
| 250 |
|
|
progname, fname);
|
| 251 |
|
|
quit(1);
|
| 252 |
|
|
}
|
| 253 |
|
|
if (mult > MAXMULT)
|
| 254 |
|
|
mult = MAXMULT; /* maximum element size */
|
| 255 |
|
|
|
| 256 |
|
|
hhome = ctab[cftype].hbeg + (ctab[cftype].hsiz - ncols*mult)/2;
|
| 257 |
|
|
vhome = ctab[cftype].vbeg + (ctab[cftype].vsiz - nrows*mult)/2;
|
| 258 |
|
|
|
| 259 |
|
|
d_init();
|
| 260 |
|
|
|
| 261 |
|
|
for (i = nrows-1; i >= 0; i--) {
|
| 262 |
|
|
if (freadscan(scanline, ncols, fin) < 0) {
|
| 263 |
|
|
fprintf(stderr, "%s: Read error in row %d: %s\n",
|
| 264 |
|
|
progname, i, fname);
|
| 265 |
|
|
quit(1);
|
| 266 |
|
|
}
|
| 267 |
|
|
scanout(scanline, i);
|
| 268 |
|
|
}
|
| 269 |
|
|
|
| 270 |
|
|
d_done();
|
| 271 |
|
|
|
| 272 |
|
|
fclose(fin);
|
| 273 |
|
|
}
|
| 274 |
|
|
|
| 275 |
|
|
|
| 276 |
schorsch |
1.5 |
static void
|
| 277 |
|
|
d_init(void) /* set up dicomed, files */
|
| 278 |
greg |
1.1 |
{
|
| 279 |
schorsch |
1.5 |
//char *mktemp();
|
| 280 |
greg |
1.1 |
/* initial condition select */
|
| 281 |
|
|
putw(O_ICS|ctab[cftype].icsfield, stdout);
|
| 282 |
|
|
/* configuration code */
|
| 283 |
|
|
putw(O_CONF|ctab[cftype].ccode, stdout);
|
| 284 |
|
|
/* select raster mode */
|
| 285 |
|
|
putw(O_ECS|ECS_RAS, stdout);
|
| 286 |
|
|
/* color or black and white */
|
| 287 |
|
|
putw(O_ECS|(docolor?ECS_COL:ECS_BW), stdout);
|
| 288 |
|
|
/* bypass translation tables */
|
| 289 |
|
|
putw(O_ECS|ECS_BT, stdout);
|
| 290 |
|
|
/* point element select */
|
| 291 |
|
|
putw(O_PES|mult<<9|010, stdout);
|
| 292 |
|
|
putw(mult<<9|010, stdout);
|
| 293 |
|
|
putw(mult<<4|mult, stdout);
|
| 294 |
|
|
|
| 295 |
|
|
if (docolor) { /* color output */
|
| 296 |
|
|
/* set up red file */
|
| 297 |
|
|
if (ftab[RED].fn == NULL)
|
| 298 |
|
|
ftab[RED].fn = mktemp(TEMPLATE);
|
| 299 |
|
|
if ((ftab[RED].fp = fopen(ftab[RED].fn, "w+")) == NULL) {
|
| 300 |
|
|
fprintf(stderr, "%s: Cannot open: %s\n",
|
| 301 |
|
|
progname, ftab[RED].fn);
|
| 302 |
|
|
quit(1);
|
| 303 |
|
|
}
|
| 304 |
|
|
putw(O_ECS|ECS_RED, ftab[RED].fp); /* red filter */
|
| 305 |
|
|
putw(O_VPA, ftab[RED].fp); /* home */
|
| 306 |
|
|
putw(hhome<<3, ftab[RED].fp);
|
| 307 |
|
|
putw(vhome<<3, ftab[RED].fp);
|
| 308 |
|
|
/* set up green file */
|
| 309 |
|
|
ftab[GRN].fp = stdout;
|
| 310 |
|
|
putw(O_ECS|ECS_GRN, ftab[GRN].fp); /* green filter */
|
| 311 |
|
|
putw(O_VPA, ftab[GRN].fp); /* home */
|
| 312 |
|
|
putw(hhome<<3, ftab[GRN].fp);
|
| 313 |
|
|
putw(vhome<<3, ftab[GRN].fp);
|
| 314 |
|
|
/* set up blue file */
|
| 315 |
|
|
if (ftab[BLU].fn == NULL)
|
| 316 |
|
|
ftab[BLU].fn = mktemp(TEMPLATE);
|
| 317 |
|
|
if ((ftab[BLU].fp = fopen(ftab[BLU].fn, "w+")) == NULL) {
|
| 318 |
|
|
fprintf(stderr, "%s: Cannot open: %s\n",
|
| 319 |
|
|
progname, ftab[BLU].fn);
|
| 320 |
|
|
quit(1);
|
| 321 |
|
|
}
|
| 322 |
|
|
putw(O_ECS|ECS_BLU, ftab[BLU].fp); /* blue filter */
|
| 323 |
|
|
putw(O_VPA, ftab[BLU].fp); /* home */
|
| 324 |
|
|
putw(hhome<<3, ftab[BLU].fp);
|
| 325 |
|
|
putw(vhome<<3, ftab[BLU].fp);
|
| 326 |
|
|
|
| 327 |
|
|
} else { /* black and white */
|
| 328 |
|
|
ftab[NEU].fp = stdout;
|
| 329 |
|
|
putw(O_ECS|ECS_NEU, ftab[NEU].fp); /* neutral filter */
|
| 330 |
|
|
putw(O_VPA, ftab[NEU].fp); /* home */
|
| 331 |
|
|
putw(hhome<<3, ftab[NEU].fp);
|
| 332 |
|
|
putw(vhome<<3, ftab[NEU].fp);
|
| 333 |
|
|
}
|
| 334 |
|
|
}
|
| 335 |
|
|
|
| 336 |
|
|
|
| 337 |
schorsch |
1.5 |
static void
|
| 338 |
|
|
scanout( /* output scan line */
|
| 339 |
|
|
COLOR *scan,
|
| 340 |
|
|
int y
|
| 341 |
|
|
)
|
| 342 |
greg |
1.1 |
{
|
| 343 |
|
|
int i;
|
| 344 |
|
|
/* uses horiz. flyback */
|
| 345 |
|
|
if (docolor)
|
| 346 |
|
|
for (i = 0; i < 3; i++)
|
| 347 |
|
|
runlength(scan, i);
|
| 348 |
|
|
else
|
| 349 |
|
|
runlength(scan, NEU);
|
| 350 |
|
|
}
|
| 351 |
|
|
|
| 352 |
|
|
|
| 353 |
schorsch |
1.5 |
static void
|
| 354 |
|
|
d_done(void) /* flush files, finish frame */
|
| 355 |
greg |
1.1 |
{
|
| 356 |
|
|
if (docolor) {
|
| 357 |
|
|
transfer(ftab[RED].fp, stdout);
|
| 358 |
|
|
transfer(ftab[BLU].fp, stdout);
|
| 359 |
|
|
}
|
| 360 |
|
|
putw(O_ECS|ECS_FA, stdout); /* film advance */
|
| 361 |
|
|
fflush(stdout);
|
| 362 |
|
|
if (ferror(stdout)) {
|
| 363 |
|
|
fprintf(stderr, "%s: Write error: <stdout>\n", progname);
|
| 364 |
|
|
quit(1);
|
| 365 |
|
|
}
|
| 366 |
|
|
}
|
| 367 |
|
|
|
| 368 |
|
|
|
| 369 |
schorsch |
1.5 |
static void
|
| 370 |
|
|
runlength( /* do scanline for filter f */
|
| 371 |
|
|
COLOR *scan,
|
| 372 |
|
|
int f
|
| 373 |
|
|
)
|
| 374 |
greg |
1.1 |
{
|
| 375 |
schorsch |
1.5 |
//double mapfilter();
|
| 376 |
greg |
1.1 |
BYTE ebuf[2*HSIZE];
|
| 377 |
|
|
register int j;
|
| 378 |
|
|
register BYTE *ep;
|
| 379 |
|
|
|
| 380 |
|
|
ep = ebuf;
|
| 381 |
|
|
ep[0] = mapfilter(scan[0], f) * 255.9999;
|
| 382 |
|
|
ep[1] = 1;
|
| 383 |
|
|
ep += 2;
|
| 384 |
|
|
for (j = 1; j < ncols; j++) {
|
| 385 |
|
|
ep[0] = mapfilter(scan[j], f) * 255.9999;
|
| 386 |
|
|
if (ep[0] == ep[-2] && ep[-1] < 255)
|
| 387 |
|
|
ep[-1]++;
|
| 388 |
|
|
else {
|
| 389 |
|
|
ep[1] = 1;
|
| 390 |
|
|
ep += 2;
|
| 391 |
|
|
}
|
| 392 |
|
|
}
|
| 393 |
|
|
j = ep - ebuf;
|
| 394 |
|
|
putw(O_FES, ftab[f].fp);
|
| 395 |
|
|
putw(FES_RL|j>>1, ftab[f].fp);
|
| 396 |
|
|
for (ep = ebuf; j-- > 0; ep++)
|
| 397 |
|
|
putc(*ep, ftab[f].fp);
|
| 398 |
|
|
|
| 399 |
|
|
if (ferror(ftab[f].fp)) {
|
| 400 |
|
|
fprintf(stderr, "%s: Write error: %s\n", progname,
|
| 401 |
|
|
ftab[f].fn==NULL ? "<stdout>" : ftab[f].fn);
|
| 402 |
|
|
quit(1);
|
| 403 |
|
|
}
|
| 404 |
|
|
}
|
| 405 |
|
|
|
| 406 |
|
|
|
| 407 |
schorsch |
1.5 |
static double
|
| 408 |
|
|
mapfilter( /* map filter value */
|
| 409 |
|
|
COLOR col,
|
| 410 |
|
|
register int f
|
| 411 |
|
|
)
|
| 412 |
greg |
1.1 |
{
|
| 413 |
|
|
static float *mp[4] = {neumap, neumap, neumap, neumap};
|
| 414 |
|
|
double x, y;
|
| 415 |
|
|
|
| 416 |
|
|
y = f_val(col,f);
|
| 417 |
|
|
|
| 418 |
|
|
if (y >= 1.0)
|
| 419 |
|
|
return(1.0);
|
| 420 |
|
|
|
| 421 |
|
|
while (y >= mp[f][2])
|
| 422 |
|
|
mp[f] += 2;
|
| 423 |
|
|
while (y < mp[f][0])
|
| 424 |
|
|
mp[f] -= 2;
|
| 425 |
|
|
|
| 426 |
|
|
x = (y - mp[f][0]) / (mp[f][2] - mp[f][0]);
|
| 427 |
|
|
|
| 428 |
|
|
return((1.0-x)*mp[f][1] + x*mp[f][3]);
|
| 429 |
|
|
}
|
| 430 |
|
|
|
| 431 |
|
|
|
| 432 |
schorsch |
1.5 |
/* XXX replaces putw() from stdio.h. Do we really need this? */
|
| 433 |
|
|
int
|
| 434 |
|
|
putw( /* output a (short) word */
|
| 435 |
|
|
int w,
|
| 436 |
|
|
register FILE *fp
|
| 437 |
|
|
)
|
| 438 |
greg |
1.1 |
{
|
| 439 |
|
|
putc(w&0377, fp); /* in proper order! */
|
| 440 |
|
|
putc(w>>8, fp);
|
| 441 |
schorsch |
1.5 |
return 0;
|
| 442 |
greg |
1.1 |
}
|
| 443 |
|
|
|
| 444 |
|
|
|
| 445 |
schorsch |
1.5 |
static void
|
| 446 |
|
|
transfer( /* transfer fin contents to fout, close fin */
|
| 447 |
|
|
register FILE *fin,
|
| 448 |
|
|
register FILE *fout
|
| 449 |
|
|
)
|
| 450 |
greg |
1.1 |
{
|
| 451 |
|
|
register int c;
|
| 452 |
|
|
|
| 453 |
|
|
fseek(fin, 0L, 0); /* rewind input */
|
| 454 |
|
|
|
| 455 |
|
|
while ((c = getc(fin)) != EOF) /* transfer file */
|
| 456 |
|
|
putc(c, fout);
|
| 457 |
|
|
|
| 458 |
|
|
fclose(fin); /* close input */
|
| 459 |
|
|
}
|
