1 |
greg |
1.12 |
/* Copyright (c) 1991 Regents of the University of California */ |
2 |
greg |
1.1 |
|
3 |
|
|
#ifndef lint |
4 |
|
|
static char SCCSid[] = "$SunId$ LBL"; |
5 |
|
|
#endif |
6 |
|
|
|
7 |
|
|
/* |
8 |
|
|
* ra_t16.c - program to convert between RADIANCE and |
9 |
|
|
* Targa 16, 24 and 32-bit images. |
10 |
|
|
* |
11 |
|
|
* 11/2/88 Adapted from ra_t8.c |
12 |
|
|
*/ |
13 |
|
|
|
14 |
|
|
#include <stdio.h> |
15 |
|
|
|
16 |
greg |
2.3 |
#ifdef MSDOS |
17 |
|
|
#include <fcntl.h> |
18 |
|
|
#endif |
19 |
|
|
|
20 |
|
|
#include <math.h> |
21 |
|
|
|
22 |
greg |
1.1 |
#include "color.h" |
23 |
|
|
|
24 |
greg |
1.15 |
#include "resolu.h" |
25 |
|
|
|
26 |
greg |
1.5 |
#include "random.h" |
27 |
|
|
|
28 |
greg |
1.1 |
#include "targa.h" |
29 |
|
|
|
30 |
|
|
#define goodpic(h) (((h)->dataType==IM_RGB || (h)->dataType==IM_CRGB) \ |
31 |
|
|
&& ((h)->dataBits==16 || (h)->dataBits==24)) |
32 |
|
|
|
33 |
|
|
#define taralloc(h) (unsigned char *)emalloc((h)->x*(h)->y*(h)->dataBits/8) |
34 |
|
|
|
35 |
|
|
#define readtarga(h,d,f) ((h)->dataBits==16 ? readt16(h,d,f) : \ |
36 |
|
|
readt24(h,d,f)) |
37 |
|
|
|
38 |
|
|
#define writetarga(h,d,f) ((h)->dataBits==16 ? writet16(h,d,f) : \ |
39 |
|
|
writet24(h,d,f)) |
40 |
|
|
|
41 |
|
|
extern char *ecalloc(), *emalloc(); |
42 |
|
|
|
43 |
greg |
2.4 |
double gamcor = 2.2; /* gamma correction */ |
44 |
greg |
1.1 |
|
45 |
greg |
1.13 |
int bradj = 0; /* brightness adjustment */ |
46 |
|
|
|
47 |
greg |
1.1 |
char *progname; |
48 |
|
|
|
49 |
|
|
char msg[128]; |
50 |
|
|
|
51 |
|
|
|
52 |
|
|
main(argc, argv) |
53 |
|
|
int argc; |
54 |
|
|
char *argv[]; |
55 |
|
|
{ |
56 |
|
|
struct hdStruct head; |
57 |
|
|
int reverse = 0; |
58 |
|
|
int i; |
59 |
greg |
2.3 |
#ifdef MSDOS |
60 |
|
|
extern int _fmode; |
61 |
|
|
_fmode = O_BINARY; |
62 |
|
|
setmode(fileno(stdin), O_BINARY); |
63 |
|
|
setmode(fileno(stdout), O_BINARY); |
64 |
|
|
#endif |
65 |
greg |
1.1 |
progname = argv[0]; |
66 |
|
|
|
67 |
|
|
head.dataBits = 16; |
68 |
|
|
for (i = 1; i < argc; i++) |
69 |
|
|
if (argv[i][0] == '-') |
70 |
|
|
switch (argv[i][1]) { |
71 |
|
|
case 'g': |
72 |
greg |
2.4 |
gamcor = atof(argv[++i]); |
73 |
greg |
1.1 |
break; |
74 |
|
|
case 'r': |
75 |
|
|
reverse = !reverse; |
76 |
|
|
break; |
77 |
|
|
case '2': |
78 |
|
|
head.dataBits = 16; |
79 |
|
|
break; |
80 |
|
|
case '3': |
81 |
|
|
head.dataBits = 24; |
82 |
|
|
break; |
83 |
greg |
1.13 |
case 'e': |
84 |
|
|
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
85 |
|
|
goto userr; |
86 |
|
|
bradj = atoi(argv[++i]); |
87 |
|
|
break; |
88 |
greg |
1.1 |
default: |
89 |
|
|
goto userr; |
90 |
|
|
} |
91 |
|
|
else |
92 |
|
|
break; |
93 |
|
|
|
94 |
|
|
if (i < argc-2) |
95 |
|
|
goto userr; |
96 |
|
|
/* open input file */ |
97 |
|
|
if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) { |
98 |
|
|
sprintf(msg, "can't open input \"%s\"", argv[i]); |
99 |
|
|
quiterr(msg); |
100 |
|
|
} |
101 |
|
|
/* open output file */ |
102 |
|
|
if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) { |
103 |
|
|
sprintf(msg, "can't open output \"%s\"", argv[i+1]); |
104 |
|
|
quiterr(msg); |
105 |
|
|
} |
106 |
greg |
1.9 |
/* set gamma */ |
107 |
greg |
2.4 |
setcolrgam(gamcor); |
108 |
greg |
1.1 |
/* convert */ |
109 |
|
|
if (reverse) { |
110 |
|
|
/* get header */ |
111 |
|
|
if (getthead(&head, NULL, stdin) < 0) |
112 |
|
|
quiterr("bad targa file"); |
113 |
|
|
if (!goodpic(&head)) |
114 |
|
|
quiterr("incompatible format"); |
115 |
|
|
/* put header */ |
116 |
greg |
1.7 |
printargs(i, argv, stdout); |
117 |
greg |
1.11 |
fputformat(COLRFMT, stdout); |
118 |
greg |
1.1 |
putchar('\n'); |
119 |
greg |
1.15 |
fprtresolu(head.x, head.y, stdout); |
120 |
greg |
1.1 |
/* convert file */ |
121 |
|
|
tg2ra(&head); |
122 |
|
|
} else { |
123 |
greg |
1.11 |
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
124 |
greg |
1.15 |
fgetresolu(&head.x, &head.y, stdin) < 0) |
125 |
greg |
1.1 |
quiterr("bad picture file"); |
126 |
|
|
/* assign header */ |
127 |
|
|
head.textSize = 0; |
128 |
|
|
head.mapType = CM_NOMAP; |
129 |
|
|
head.dataType = IM_RGB; |
130 |
|
|
head.XOffset = 0; |
131 |
|
|
head.YOffset = 0; |
132 |
|
|
head.imType = 0; |
133 |
|
|
/* write header */ |
134 |
|
|
putthead(&head, NULL, stdout); |
135 |
|
|
/* convert file */ |
136 |
|
|
ra2tg(&head); |
137 |
|
|
} |
138 |
|
|
exit(0); |
139 |
|
|
userr: |
140 |
greg |
1.13 |
fprintf(stderr, "Usage: %s [-2|-3|-r][-g gamma][-e +/-stops] [input [output]]\n", |
141 |
greg |
1.1 |
progname); |
142 |
|
|
exit(1); |
143 |
|
|
} |
144 |
|
|
|
145 |
|
|
|
146 |
|
|
int |
147 |
|
|
getint2(fp) /* get a 2-byte positive integer */ |
148 |
|
|
register FILE *fp; |
149 |
|
|
{ |
150 |
|
|
register int b1, b2; |
151 |
|
|
|
152 |
|
|
if ((b1 = getc(fp)) == EOF || (b2 = getc(fp)) == EOF) |
153 |
|
|
quiterr("read error"); |
154 |
|
|
|
155 |
|
|
return(b1 | b2<<8); |
156 |
|
|
} |
157 |
|
|
|
158 |
|
|
|
159 |
|
|
putint2(i, fp) /* put a 2-byte positive integer */ |
160 |
|
|
register int i; |
161 |
|
|
register FILE *fp; |
162 |
|
|
{ |
163 |
|
|
putc(i&0xff, fp); |
164 |
|
|
putc(i>>8&0xff, fp); |
165 |
|
|
} |
166 |
|
|
|
167 |
|
|
|
168 |
|
|
quiterr(err) /* print message and exit */ |
169 |
|
|
char *err; |
170 |
|
|
{ |
171 |
|
|
fprintf(stderr, "%s: %s\n", progname, err); |
172 |
|
|
exit(1); |
173 |
|
|
} |
174 |
|
|
|
175 |
|
|
|
176 |
|
|
eputs(s) |
177 |
|
|
char *s; |
178 |
|
|
{ |
179 |
|
|
fputs(s, stderr); |
180 |
|
|
} |
181 |
|
|
|
182 |
|
|
|
183 |
|
|
quit(code) |
184 |
|
|
int code; |
185 |
|
|
{ |
186 |
|
|
exit(code); |
187 |
|
|
} |
188 |
|
|
|
189 |
|
|
|
190 |
|
|
getthead(hp, ip, fp) /* read header from input */ |
191 |
|
|
struct hdStruct *hp; |
192 |
|
|
char *ip; |
193 |
|
|
register FILE *fp; |
194 |
|
|
{ |
195 |
|
|
int nidbytes; |
196 |
|
|
|
197 |
|
|
if ((nidbytes = getc(fp)) == EOF) |
198 |
|
|
return(-1); |
199 |
|
|
hp->mapType = getc(fp); |
200 |
|
|
hp->dataType = getc(fp); |
201 |
|
|
hp->mapOrig = getint2(fp); |
202 |
|
|
hp->mapLength = getint2(fp); |
203 |
|
|
hp->CMapBits = getc(fp); |
204 |
|
|
hp->XOffset = getint2(fp); |
205 |
|
|
hp->YOffset = getint2(fp); |
206 |
|
|
hp->x = getint2(fp); |
207 |
|
|
hp->y = getint2(fp); |
208 |
|
|
hp->dataBits = getc(fp); |
209 |
|
|
hp->imType = getc(fp); |
210 |
|
|
|
211 |
|
|
if (ip != NULL) |
212 |
|
|
if (nidbytes) |
213 |
greg |
1.6 |
fread((char *)ip, nidbytes, 1, fp); |
214 |
greg |
1.1 |
else |
215 |
|
|
*ip = '\0'; |
216 |
|
|
else if (nidbytes) |
217 |
|
|
fseek(fp, (long)nidbytes, 1); |
218 |
|
|
|
219 |
|
|
return(feof(fp) || ferror(fp) ? -1 : 0); |
220 |
|
|
} |
221 |
|
|
|
222 |
|
|
|
223 |
|
|
putthead(hp, ip, fp) /* write header to output */ |
224 |
|
|
struct hdStruct *hp; |
225 |
|
|
char *ip; |
226 |
|
|
register FILE *fp; |
227 |
|
|
{ |
228 |
|
|
if (ip != NULL) |
229 |
|
|
putc(strlen(ip), fp); |
230 |
|
|
else |
231 |
|
|
putc(0, fp); |
232 |
|
|
putc(hp->mapType, fp); |
233 |
|
|
putc(hp->dataType, fp); |
234 |
|
|
putint2(hp->mapOrig, fp); |
235 |
|
|
putint2(hp->mapLength, fp); |
236 |
|
|
putc(hp->CMapBits, fp); |
237 |
|
|
putint2(hp->XOffset, fp); |
238 |
|
|
putint2(hp->YOffset, fp); |
239 |
|
|
putint2(hp->x, fp); |
240 |
|
|
putint2(hp->y, fp); |
241 |
|
|
putc(hp->dataBits, fp); |
242 |
|
|
putc(hp->imType, fp); |
243 |
|
|
|
244 |
|
|
if (ip != NULL) |
245 |
|
|
fputs(ip, fp); |
246 |
|
|
|
247 |
|
|
return(ferror(fp) ? -1 : 0); |
248 |
|
|
} |
249 |
|
|
|
250 |
|
|
|
251 |
|
|
tg2ra(hp) /* targa file to RADIANCE file */ |
252 |
|
|
struct hdStruct *hp; |
253 |
|
|
{ |
254 |
greg |
1.9 |
COLR *scanline; |
255 |
greg |
1.1 |
unsigned char *tarData; |
256 |
|
|
register int i, j; |
257 |
|
|
/* skip color table */ |
258 |
|
|
if (hp->mapType == CM_HASMAP) |
259 |
|
|
fseek(stdin, (long)hp->mapLength*hp->CMapBits/8, 1); |
260 |
|
|
/* allocate targa data */ |
261 |
|
|
tarData = taralloc(hp); |
262 |
|
|
/* get data */ |
263 |
|
|
readtarga(hp, tarData, stdin); |
264 |
|
|
/* allocate input scanline */ |
265 |
greg |
1.9 |
scanline = (COLR *)emalloc(hp->x*sizeof(COLR)); |
266 |
greg |
1.1 |
/* convert file */ |
267 |
|
|
for (i = hp->y-1; i >= 0; i--) { |
268 |
|
|
if (hp->dataBits == 16) { |
269 |
|
|
register unsigned short *dp; |
270 |
|
|
dp = (unsigned short *)tarData + i*hp->x; |
271 |
|
|
for (j = 0; j < hp->x; j++) { |
272 |
greg |
1.9 |
scanline[j][RED] = *dp>>7 & 0xf8; |
273 |
|
|
scanline[j][GRN] = *dp>>2 & 0xf8; |
274 |
|
|
scanline[j][BLU] = *dp<<3 & 0xf8; |
275 |
greg |
1.1 |
dp++; |
276 |
|
|
} |
277 |
|
|
} else { /* hp->dataBits == 24 */ |
278 |
|
|
register unsigned char *dp; |
279 |
|
|
dp = (unsigned char *)tarData + i*3*hp->x; |
280 |
|
|
for (j = 0; j < hp->x; j++) { |
281 |
greg |
1.9 |
scanline[j][RED] = dp[2]; |
282 |
|
|
scanline[j][GRN] = dp[1]; |
283 |
|
|
scanline[j][BLU] = dp[0]; |
284 |
greg |
1.1 |
dp += 3; |
285 |
|
|
} |
286 |
|
|
} |
287 |
greg |
1.9 |
gambs_colrs(scanline, hp->x); |
288 |
greg |
1.13 |
if (bradj) |
289 |
|
|
shiftcolrs(scanline, hp->x, bradj); |
290 |
greg |
1.9 |
if (fwritecolrs(scanline, hp->x, stdout) < 0) |
291 |
greg |
1.1 |
quiterr("error writing RADIANCE file"); |
292 |
|
|
} |
293 |
|
|
free((char *)scanline); |
294 |
|
|
free((char *)tarData); |
295 |
|
|
} |
296 |
|
|
|
297 |
|
|
|
298 |
|
|
ra2tg(hp) /* convert radiance to targa file */ |
299 |
|
|
struct hdStruct *hp; |
300 |
|
|
{ |
301 |
greg |
1.3 |
register int i, j; |
302 |
greg |
1.1 |
unsigned char *tarData; |
303 |
greg |
1.9 |
COLR *inl; |
304 |
greg |
1.1 |
/* allocate space for data */ |
305 |
greg |
1.9 |
inl = (COLR *)emalloc(hp->x*sizeof(COLR)); |
306 |
greg |
1.1 |
tarData = taralloc(hp); |
307 |
|
|
/* convert file */ |
308 |
|
|
for (j = hp->y-1; j >= 0; j--) { |
309 |
greg |
1.9 |
if (freadcolrs(inl, hp->x, stdin) < 0) |
310 |
greg |
1.1 |
quiterr("error reading RADIANCE file"); |
311 |
greg |
1.13 |
if (bradj) |
312 |
|
|
shiftcolrs(inl, hp->x, bradj); |
313 |
greg |
1.9 |
colrs_gambs(inl, hp->x); |
314 |
greg |
1.1 |
if (hp->dataBits == 16) { |
315 |
|
|
register unsigned short *dp; |
316 |
greg |
1.12 |
register int v; |
317 |
greg |
1.1 |
dp = (unsigned short *)tarData + j*hp->x; |
318 |
|
|
for (i = 0; i < hp->x; i++) { |
319 |
greg |
1.12 |
v = inl[i][RED] + (random()&7); |
320 |
|
|
if (v > 255) v = 255; |
321 |
|
|
*dp = (v&0xf8)<<7; |
322 |
|
|
v = inl[i][GRN] + (random()&7); |
323 |
|
|
if (v > 255) v = 255; |
324 |
|
|
*dp |= (v&0xf8)<<2; |
325 |
|
|
v = inl[i][BLU] + (random()&7); |
326 |
|
|
if (v > 255) v = 255; |
327 |
|
|
*dp++ |= v>>3; |
328 |
greg |
1.1 |
} |
329 |
|
|
} else { /* hp->dataBits == 24 */ |
330 |
|
|
register unsigned char *dp; |
331 |
|
|
dp = (unsigned char *)tarData + j*3*hp->x; |
332 |
|
|
for (i = 0; i < hp->x; i++) { |
333 |
greg |
1.10 |
*dp++ = inl[i][BLU]; |
334 |
|
|
*dp++ = inl[i][GRN]; |
335 |
greg |
1.9 |
*dp++ = inl[i][RED]; |
336 |
greg |
1.1 |
} |
337 |
|
|
} |
338 |
|
|
} |
339 |
|
|
/* write out targa data */ |
340 |
|
|
writetarga(hp, tarData, stdout); |
341 |
|
|
|
342 |
greg |
1.8 |
free((char *)inl); |
343 |
greg |
1.1 |
free((char *)tarData); |
344 |
|
|
} |
345 |
|
|
|
346 |
|
|
|
347 |
|
|
writet24(h, d, fp) /* write out 24-bit targa data */ |
348 |
|
|
struct hdStruct *h; |
349 |
|
|
unsigned char *d; |
350 |
|
|
FILE *fp; |
351 |
|
|
{ |
352 |
|
|
if (h->dataType == IM_RGB) { /* uncompressed */ |
353 |
greg |
1.6 |
if (fwrite((char *)d, 3*h->x, h->y, fp) != h->y) |
354 |
greg |
1.1 |
quiterr("error writing targa file"); |
355 |
|
|
return; |
356 |
|
|
} |
357 |
|
|
quiterr("unsupported output type"); |
358 |
|
|
} |
359 |
|
|
|
360 |
|
|
|
361 |
|
|
writet16(h, d, fp) /* write out 16-bit targa data */ |
362 |
|
|
struct hdStruct *h; |
363 |
|
|
register unsigned short *d; |
364 |
|
|
FILE *fp; |
365 |
|
|
{ |
366 |
|
|
register int cnt; |
367 |
|
|
|
368 |
|
|
if (h->dataType == IM_RGB) { /* uncompressed */ |
369 |
|
|
for (cnt = h->x*h->y; cnt-- > 0; ) |
370 |
|
|
putint2(*d++, fp); |
371 |
|
|
if (ferror(fp)) |
372 |
|
|
quiterr("error writing targa file"); |
373 |
|
|
return; |
374 |
|
|
} |
375 |
|
|
quiterr("unsupported output type"); |
376 |
|
|
} |
377 |
|
|
|
378 |
|
|
|
379 |
|
|
readt24(h, data, fp) /* read in 24-bit targa data */ |
380 |
|
|
register struct hdStruct *h; |
381 |
|
|
unsigned char *data; |
382 |
|
|
FILE *fp; |
383 |
|
|
{ |
384 |
|
|
register int cnt, c; |
385 |
|
|
register unsigned char *dp; |
386 |
|
|
int r, g, b; |
387 |
|
|
|
388 |
|
|
if (h->dataType == IM_RGB) { /* uncompressed */ |
389 |
greg |
1.6 |
if (fread((char *)data, 3*h->x, h->y, fp) != h->y) |
390 |
greg |
1.1 |
goto readerr; |
391 |
|
|
return; |
392 |
|
|
} |
393 |
|
|
for (dp = data; dp < data+3*h->x*h->y; ) { |
394 |
|
|
if ((c = getc(fp)) == EOF) |
395 |
|
|
goto readerr; |
396 |
|
|
cnt = (c & 0x7f) + 1; |
397 |
|
|
if (c & 0x80) { /* repeated pixel */ |
398 |
greg |
1.2 |
b = getc(fp); g = getc(fp); |
399 |
|
|
if ((r = getc(fp)) == EOF) |
400 |
greg |
1.1 |
goto readerr; |
401 |
|
|
while (cnt--) { |
402 |
greg |
1.2 |
*dp++ = b; |
403 |
|
|
*dp++ = g; |
404 |
greg |
1.1 |
*dp++ = r; |
405 |
|
|
} |
406 |
|
|
} else /* non-repeating pixels */ |
407 |
|
|
while (cnt--) { |
408 |
|
|
*dp++ = getc(fp); *dp++ = getc(fp); |
409 |
greg |
1.2 |
if ((r = getc(fp)) == EOF) |
410 |
greg |
1.1 |
goto readerr; |
411 |
greg |
1.2 |
*dp++ = r; |
412 |
greg |
1.1 |
} |
413 |
|
|
} |
414 |
|
|
return; |
415 |
|
|
readerr: |
416 |
|
|
quiterr("error reading targa file"); |
417 |
|
|
} |
418 |
|
|
|
419 |
|
|
|
420 |
|
|
readt16(h, data, fp) /* read in 16-bit targa data */ |
421 |
|
|
register struct hdStruct *h; |
422 |
|
|
unsigned short *data; |
423 |
|
|
FILE *fp; |
424 |
|
|
{ |
425 |
|
|
register int cnt, c; |
426 |
|
|
register unsigned short *dp; |
427 |
|
|
|
428 |
|
|
if (h->dataType == IM_RGB) { /* uncompressed */ |
429 |
|
|
dp = data; |
430 |
|
|
for (cnt = h->x*h->y; cnt-- > 0; ) |
431 |
|
|
*dp++ = getint2(fp); |
432 |
|
|
return; |
433 |
|
|
} |
434 |
|
|
for (dp = data; dp < data+h->x*h->y; ) { |
435 |
|
|
if ((c = getc(fp)) == EOF) |
436 |
|
|
goto readerr; |
437 |
|
|
cnt = (c & 0x7f) + 1; |
438 |
|
|
if (c & 0x80) { /* repeated pixel */ |
439 |
|
|
c = getint2(fp); |
440 |
|
|
while (cnt--) |
441 |
|
|
*dp++ = c; |
442 |
|
|
} else /* non-repeating pixels */ |
443 |
|
|
while (cnt--) |
444 |
|
|
*dp++ = getint2(fp); |
445 |
|
|
} |
446 |
|
|
return; |
447 |
|
|
readerr: |
448 |
|
|
quiterr("error reading targa file"); |
449 |
|
|
} |