1 |
greg |
1.1 |
#ifndef lint |
2 |
schorsch |
2.10 |
static const char RCSid[] = "$Id: ra_pict.c,v 2.9 2003/06/05 19:29:34 schorsch Exp $"; |
3 |
greg |
1.1 |
#endif |
4 |
greg |
2.5 |
/* Convert an Radiance image to APPLE pict format. |
5 |
greg |
2.2 |
* |
6 |
|
|
* Orginally Iris to PICT by Paul Haeberli - 1990 |
7 |
|
|
* Hacked into Rad to PICT by Russell Street 1990 |
8 |
|
|
* |
9 |
|
|
* History: |
10 |
|
|
* V 1 -- Does basic conversion |
11 |
|
|
* V 1.1 (2/11/91) -- Added options for Gamma |
12 |
|
|
* -- verbose option |
13 |
|
|
* -- man page |
14 |
|
|
* -- better about allocating buffers |
15 |
|
|
* V 1.2 (19/11/91) -- Revised to handle opening "The Radiance Way" |
16 |
|
|
* -- Added exposure level adjustment |
17 |
|
|
*/ |
18 |
|
|
|
19 |
greg |
1.1 |
#include <stdio.h> |
20 |
greg |
2.6 |
#include <math.h> |
21 |
greg |
2.8 |
#include <time.h> |
22 |
greg |
2.2 |
|
23 |
schorsch |
2.9 |
#include "platform.h" |
24 |
greg |
1.1 |
#include "pict.h" |
25 |
|
|
#include "color.h" |
26 |
greg |
1.4 |
#include "resolu.h" |
27 |
greg |
2.3 |
|
28 |
greg |
2.2 |
int outbytes; /* This had better be 32 bits! */ |
29 |
|
|
char *progname; |
30 |
|
|
int verbose = 0; |
31 |
greg |
2.7 |
float gamcor = 2.0; |
32 |
greg |
2.2 |
int bradj = 0; |
33 |
greg |
1.1 |
|
34 |
schorsch |
2.10 |
static void putrect(int xorg, int yorg, int xsize, int ysize); |
35 |
|
|
static void putfprect(int xorg, int yorg, int xsize, int ysize); |
36 |
|
|
static void putalong(long l); |
37 |
|
|
static void putashort(short s); |
38 |
|
|
static void putbyte(int b); |
39 |
|
|
static void putbytes(unsigned char *buf, int n ); |
40 |
|
|
static void putpict(int xsize, int ysize); |
41 |
|
|
static void getrow(FILE *in, char *cbuf, int xsize); |
42 |
|
|
static int packbits(unsigned char *ibits, unsigned char *pbits, int nbits); |
43 |
|
|
static void usage(void); |
44 |
|
|
|
45 |
|
|
|
46 |
greg |
2.2 |
/* First some utility routines */ |
47 |
schorsch |
2.10 |
static void |
48 |
|
|
putrect( |
49 |
|
|
int xorg, |
50 |
|
|
int yorg, |
51 |
|
|
int xsize, |
52 |
|
|
int ysize |
53 |
|
|
) |
54 |
greg |
1.1 |
{ |
55 |
|
|
putashort(yorg); |
56 |
|
|
putashort(xorg); |
57 |
|
|
putashort(ysize); |
58 |
|
|
putashort(xsize); |
59 |
|
|
} |
60 |
|
|
|
61 |
schorsch |
2.10 |
static void |
62 |
|
|
putfprect( |
63 |
|
|
int xorg, |
64 |
|
|
int yorg, |
65 |
|
|
int xsize, |
66 |
|
|
int ysize |
67 |
|
|
) |
68 |
greg |
1.1 |
{ |
69 |
|
|
putalong(yorg<<16); |
70 |
|
|
putalong(xorg<<16); |
71 |
|
|
putalong(ysize<<16); |
72 |
|
|
putalong(xsize<<16); |
73 |
|
|
} |
74 |
|
|
|
75 |
schorsch |
2.10 |
static void |
76 |
|
|
putalong( |
77 |
|
|
long l |
78 |
|
|
) |
79 |
greg |
1.1 |
{ |
80 |
|
|
putbyte((l>>24)&0xff); |
81 |
|
|
putbyte((l>>16)&0xff); |
82 |
|
|
putbyte((l>>8)&0xff); |
83 |
|
|
putbyte((l>>0)&0xff); |
84 |
|
|
} |
85 |
|
|
|
86 |
schorsch |
2.10 |
static void |
87 |
|
|
putashort( |
88 |
|
|
short s |
89 |
|
|
) |
90 |
greg |
1.1 |
{ |
91 |
|
|
putbyte((s>>8)&0xff); |
92 |
|
|
putbyte((s>>0)&0xff); |
93 |
|
|
} |
94 |
|
|
|
95 |
schorsch |
2.10 |
static void |
96 |
|
|
putbyte( |
97 |
|
|
int b |
98 |
|
|
) |
99 |
greg |
1.1 |
{ |
100 |
greg |
2.2 |
if (putc(b,stdout) == EOF && ferror(stdout)) { |
101 |
|
|
fprintf(stderr,"%s: error on write\n", progname); |
102 |
greg |
1.1 |
exit(1); |
103 |
|
|
} |
104 |
|
|
outbytes++; |
105 |
|
|
} |
106 |
|
|
|
107 |
schorsch |
2.10 |
static void |
108 |
|
|
putbytes( |
109 |
|
|
unsigned char *buf, |
110 |
|
|
int n |
111 |
|
|
) |
112 |
greg |
1.1 |
{ |
113 |
greg |
2.2 |
if(!fwrite(buf,n,1,stdout)) { |
114 |
|
|
fprintf(stderr,"%s: error on write\n", progname); |
115 |
greg |
1.1 |
exit(1); |
116 |
|
|
} |
117 |
|
|
outbytes+=n; |
118 |
|
|
} |
119 |
|
|
|
120 |
schorsch |
2.10 |
int |
121 |
|
|
main( |
122 |
|
|
int argc, |
123 |
|
|
char **argv |
124 |
|
|
) |
125 |
greg |
1.1 |
{ |
126 |
|
|
int xsize, ysize; |
127 |
|
|
int i, picsize; |
128 |
|
|
int ssizepos, lsizepos; |
129 |
schorsch |
2.9 |
SET_DEFAULT_BINARY(); |
130 |
|
|
SET_FILE_BINARY(stdin); |
131 |
|
|
SET_FILE_BINARY(stdout); |
132 |
greg |
2.2 |
progname = argv[0]; |
133 |
greg |
1.1 |
|
134 |
greg |
2.2 |
for (i = 1; i < argc ; i++) |
135 |
greg |
2.5 |
if (argv[i][0] == '-') |
136 |
greg |
2.2 |
switch (argv[i][1]) { |
137 |
greg |
2.7 |
case 'g': gamcor = atof(argv[++i]); |
138 |
greg |
2.2 |
break; |
139 |
greg |
1.1 |
|
140 |
greg |
2.2 |
case 'e': if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
141 |
|
|
usage(); |
142 |
|
|
else |
143 |
|
|
bradj = atoi(argv[++i]); |
144 |
|
|
break; |
145 |
|
|
|
146 |
|
|
case 'v': ; |
147 |
|
|
verbose = 1; |
148 |
|
|
break; |
149 |
|
|
|
150 |
|
|
case 'r': fprintf(stderr, "Sorry. Get a Macintosh :-)\n"); |
151 |
|
|
exit(1); |
152 |
|
|
|
153 |
|
|
case '-': i++; |
154 |
|
|
goto outofparse; |
155 |
|
|
break; /* NOTREACHED */ |
156 |
|
|
|
157 |
schorsch |
2.10 |
default: |
158 |
|
|
usage(); |
159 |
greg |
2.2 |
break; |
160 |
|
|
} |
161 |
|
|
else |
162 |
|
|
break; |
163 |
|
|
|
164 |
|
|
outofparse: |
165 |
|
|
|
166 |
|
|
if (i < argc - 2) |
167 |
|
|
usage(); |
168 |
|
|
|
169 |
|
|
if (i <= argc - 1 && freopen(argv[i], "r", stdin) == NULL) { |
170 |
|
|
fprintf(stderr, "%s: can not open input \"%s\"\n", |
171 |
|
|
progname, argv[i]); |
172 |
greg |
1.1 |
exit(1); |
173 |
|
|
} |
174 |
|
|
|
175 |
greg |
2.2 |
if (i <= argc - 2 && freopen(argv[i+1], "w", stdout) == NULL) { |
176 |
|
|
fprintf(stderr, "%s: can not open input \"%s\"\n", |
177 |
|
|
progname, argv[i+1]); |
178 |
greg |
1.1 |
exit(1); |
179 |
|
|
} |
180 |
greg |
2.2 |
|
181 |
|
|
#ifdef DEBUG |
182 |
|
|
fprintf(stderr, "Input file: %s\n", i <= argc - 1 ? argv[i] : "stdin"); |
183 |
greg |
2.5 |
fprintf(stderr, "Outut file: %s\n", i <= argc - 2 ? argv[i+1] : "stdout" ); |
184 |
greg |
2.7 |
fprintf(stderr, "Gamma: %f\n", gamcor); |
185 |
greg |
2.2 |
fprintf(stderr, "Brightness adjust: %d\n", bradj); |
186 |
greg |
2.5 |
fprintf(stderr, "Verbose: %s\n", verbose ? "on" : "off"); |
187 |
greg |
2.2 |
#endif |
188 |
greg |
1.1 |
|
189 |
greg |
2.2 |
|
190 |
greg |
2.5 |
/* OK. Now we read the size of the Radiance picture */ |
191 |
greg |
2.2 |
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
192 |
greg |
2.5 |
fgetresolu(&xsize, &ysize, stdin) < 0 /* != (YMAJOR|YDECR) */ ) { |
193 |
|
|
fprintf(stderr, "%s: not a radiance picture\n", progname); |
194 |
|
|
exit(1); |
195 |
greg |
2.2 |
} |
196 |
greg |
1.1 |
|
197 |
greg |
2.2 |
/* Set the gamma correction */ |
198 |
greg |
1.1 |
|
199 |
greg |
2.7 |
setcolrgam(gamcor); |
200 |
greg |
2.2 |
|
201 |
greg |
1.1 |
for(i=0; i<HEADER_SIZE; i++) |
202 |
|
|
putbyte(0); |
203 |
greg |
2.2 |
|
204 |
greg |
1.1 |
ssizepos = outbytes; |
205 |
greg |
2.5 |
putashort(0); /* low 16 bits of file size less HEADER_SIZE */ |
206 |
greg |
1.1 |
putrect(0,0,xsize,ysize); /* bounding box of picture */ |
207 |
|
|
putashort(PICT_picVersion); |
208 |
|
|
putashort(0x02ff); /* version 2 pict */ |
209 |
|
|
putashort(PICT_reservedHeader); /* reserved header opcode */ |
210 |
|
|
|
211 |
|
|
lsizepos = outbytes; |
212 |
greg |
2.5 |
putalong(0); /* full size of the file */ |
213 |
|
|
putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */ |
214 |
|
|
putalong(0); /* reserved */ |
215 |
greg |
1.1 |
|
216 |
greg |
2.5 |
putashort(PICT_clipRgn); /* the clip region */ |
217 |
greg |
1.1 |
putashort(10); |
218 |
|
|
putrect(0,0,xsize,ysize); |
219 |
|
|
|
220 |
greg |
2.2 |
if (verbose) |
221 |
|
|
fprintf(stderr, "%s: The picture is %d by %d, with a gamma of %f\n", |
222 |
greg |
2.7 |
progname, xsize, ysize, gamcor); |
223 |
greg |
1.1 |
|
224 |
greg |
2.2 |
|
225 |
|
|
putpict(xsize, ysize); /* Here is where all the work is done */ |
226 |
|
|
|
227 |
greg |
1.1 |
putashort(PICT_EndOfPicture); /* end of pict */ |
228 |
|
|
|
229 |
|
|
picsize = outbytes-HEADER_SIZE; |
230 |
greg |
2.2 |
fseek(stdout,ssizepos,0); |
231 |
greg |
1.1 |
putashort(picsize&0xffff); |
232 |
greg |
2.2 |
fseek(stdout,lsizepos,0); |
233 |
greg |
1.1 |
putalong(picsize); |
234 |
|
|
|
235 |
greg |
2.2 |
fclose(stdout); |
236 |
|
|
fclose(stdin); |
237 |
|
|
|
238 |
greg |
1.1 |
exit(0); |
239 |
greg |
2.2 |
return 0; /* lint fodder */ |
240 |
greg |
1.1 |
} |
241 |
|
|
|
242 |
schorsch |
2.10 |
static void |
243 |
|
|
putpict( |
244 |
|
|
int xsize, |
245 |
|
|
int ysize |
246 |
|
|
) |
247 |
greg |
1.1 |
{ |
248 |
greg |
2.2 |
int y; |
249 |
|
|
int nbytes, rowbytes; |
250 |
|
|
char *cbuf, *pbuf; |
251 |
greg |
1.1 |
|
252 |
greg |
2.8 |
cbuf = (char *)malloc(4 * xsize); |
253 |
greg |
2.2 |
|
254 |
|
|
if (cbuf == NULL) { |
255 |
|
|
fprintf(stderr, "%s: not enough memory\n", progname); |
256 |
|
|
exit(1); |
257 |
|
|
} |
258 |
|
|
|
259 |
greg |
2.8 |
pbuf = (char *)malloc(4 * xsize); |
260 |
greg |
2.2 |
|
261 |
|
|
if (pbuf == NULL) { |
262 |
|
|
fprintf(stderr, "%s: not enough memory\n", progname); |
263 |
|
|
exit(1); |
264 |
|
|
} |
265 |
|
|
|
266 |
greg |
1.1 |
putashort(PICT_Pack32BitsRect); /* 32 bit rgb */ |
267 |
|
|
rowbytes = 4*xsize; |
268 |
|
|
putalong(0x000000ff); /* base address */ |
269 |
|
|
|
270 |
greg |
2.2 |
|
271 |
greg |
1.1 |
if(rowbytes&1) |
272 |
|
|
rowbytes++; |
273 |
greg |
2.5 |
putashort(rowbytes|0x8000); /* rowbytes */ |
274 |
greg |
1.1 |
putrect(0,0,xsize,ysize); /* bounds */ |
275 |
|
|
putashort(0); /* version */ |
276 |
|
|
|
277 |
|
|
putashort(4); /* packtype */ |
278 |
|
|
putalong(0); /* packsize */ |
279 |
|
|
putalong(72<<16); /* hres */ |
280 |
|
|
putalong(72<<16); /* vres */ |
281 |
|
|
|
282 |
|
|
putashort(16); /* pixeltype */ |
283 |
|
|
putashort(32); /* pixelsize */ |
284 |
|
|
putashort(3); /* cmpcount */ |
285 |
|
|
|
286 |
greg |
2.2 |
|
287 |
greg |
1.1 |
putashort(8); /* cmpsize */ |
288 |
|
|
putalong(0); /* planebytes */ |
289 |
|
|
putalong(0); /* pmtable */ |
290 |
|
|
putalong(0); /* pmreserved */ |
291 |
|
|
|
292 |
greg |
2.2 |
|
293 |
greg |
1.1 |
putrect(0,0,xsize,ysize); /* scr rect */ |
294 |
|
|
putrect(0,0,xsize,ysize); /* dest rect */ |
295 |
|
|
|
296 |
greg |
2.2 |
|
297 |
greg |
1.1 |
putashort(0x40); /* transfer mode */ |
298 |
greg |
2.2 |
|
299 |
greg |
1.1 |
for(y=0; y<ysize; y++) { |
300 |
greg |
2.2 |
getrow(stdin, cbuf, xsize); |
301 |
greg |
1.1 |
|
302 |
|
|
nbytes = packbits(cbuf,pbuf,24*xsize); |
303 |
|
|
if(rowbytes>250) |
304 |
|
|
putashort(nbytes); |
305 |
|
|
else |
306 |
|
|
putbyte(nbytes); |
307 |
|
|
putbytes(pbuf,nbytes); |
308 |
greg |
2.2 |
} |
309 |
greg |
1.1 |
|
310 |
|
|
if(outbytes&1) |
311 |
|
|
putbyte(0); |
312 |
greg |
2.2 |
|
313 |
|
|
free(cbuf); |
314 |
|
|
free(pbuf); |
315 |
greg |
1.1 |
} |
316 |
|
|
|
317 |
schorsch |
2.10 |
static void |
318 |
|
|
getrow( |
319 |
|
|
FILE *in, |
320 |
|
|
char *cbuf, |
321 |
|
|
int xsize |
322 |
|
|
) |
323 |
greg |
1.1 |
{ |
324 |
greg |
2.5 |
extern char *tempbuffer(); /* defined in color.c */ |
325 |
greg |
2.2 |
COLR *scanin = NULL; |
326 |
greg |
1.1 |
int x; |
327 |
|
|
|
328 |
greg |
2.2 |
if ((scanin = (COLR *)tempbuffer(xsize*sizeof(COLR))) == NULL) { |
329 |
|
|
fprintf(stderr, "%s: not enough memory\n", progname); |
330 |
|
|
exit(1); |
331 |
greg |
1.1 |
} |
332 |
|
|
|
333 |
|
|
if (freadcolrs(scanin, xsize, in) < 0) { |
334 |
greg |
2.5 |
fprintf(stderr, "%s: read error\n", progname); |
335 |
|
|
exit(1); |
336 |
|
|
} |
337 |
greg |
1.1 |
|
338 |
greg |
2.2 |
if (bradj) /* Adjust exposure level */ |
339 |
|
|
shiftcolrs(scanin, xsize, bradj); |
340 |
|
|
|
341 |
|
|
|
342 |
|
|
colrs_gambs(scanin, xsize); /* Gamma correct it */ |
343 |
greg |
1.1 |
|
344 |
|
|
for (x = 0; x < xsize; x++) { |
345 |
greg |
2.2 |
cbuf[x] = scanin[x][RED]; |
346 |
|
|
cbuf[xsize + x] = scanin[x][GRN]; |
347 |
|
|
cbuf[2*xsize + x] = scanin[x][BLU]; |
348 |
|
|
} |
349 |
|
|
|
350 |
greg |
1.1 |
} |
351 |
|
|
|
352 |
greg |
2.2 |
|
353 |
schorsch |
2.10 |
static int |
354 |
|
|
packbits( |
355 |
|
|
unsigned char *ibits, |
356 |
|
|
unsigned char *pbits, |
357 |
|
|
int nbits |
358 |
|
|
) |
359 |
greg |
1.1 |
{ |
360 |
|
|
unsigned char *sptr; |
361 |
|
|
unsigned char *ibitsend; |
362 |
|
|
unsigned char *optr = pbits; |
363 |
|
|
int nbytes, todo, cc, count; |
364 |
|
|
|
365 |
|
|
nbytes = ((nbits-1)/8)+1; |
366 |
|
|
ibitsend = ibits+nbytes; |
367 |
greg |
2.2 |
while(ibits<ibitsend) { |
368 |
greg |
1.1 |
sptr = ibits; |
369 |
|
|
ibits += 2; |
370 |
|
|
while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])||(ibits[-1]!=ibits[0]))) |
371 |
|
|
ibits++; |
372 |
greg |
2.5 |
if(ibits != ibitsend) { |
373 |
greg |
1.1 |
ibits -= 2; |
374 |
|
|
} |
375 |
|
|
count = ibits-sptr; |
376 |
|
|
while(count) { |
377 |
|
|
todo = count>127 ? 127:count; |
378 |
|
|
count -= todo; |
379 |
|
|
*optr++ = todo-1; |
380 |
|
|
while(todo--) |
381 |
|
|
*optr++ = *sptr++; |
382 |
|
|
} |
383 |
|
|
if(ibits == ibitsend) |
384 |
|
|
break; |
385 |
|
|
sptr = ibits; |
386 |
|
|
cc = *ibits++; |
387 |
|
|
while( (ibits<ibitsend) && (*ibits == cc) ) |
388 |
|
|
ibits++; |
389 |
|
|
count = ibits-sptr; |
390 |
|
|
while(count) { |
391 |
|
|
todo = count>128 ? 128:count; |
392 |
|
|
count -= todo; |
393 |
|
|
*optr++ = 257-todo; |
394 |
|
|
*optr++ = cc; |
395 |
|
|
} |
396 |
|
|
} |
397 |
|
|
return optr-pbits; |
398 |
greg |
2.2 |
} |
399 |
|
|
|
400 |
schorsch |
2.10 |
static void |
401 |
|
|
usage(void) |
402 |
greg |
2.2 |
{ |
403 |
|
|
fprintf(stderr, "Usage: %s [-v] [-g gamma] [infile [outfile]]\n", |
404 |
|
|
progname); |
405 |
|
|
exit(2); |
406 |
greg |
1.1 |
} |