| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: ra_pict.c,v 2.10 2004/03/28 20:33:14 schorsch Exp $"; |
| 3 |
#endif |
| 4 |
/* Convert an Radiance image to APPLE pict format. |
| 5 |
* |
| 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 |
#include <stdio.h> |
| 20 |
#include <math.h> |
| 21 |
#include <time.h> |
| 22 |
|
| 23 |
#include "platform.h" |
| 24 |
#include "rtio.h" |
| 25 |
#include "pict.h" |
| 26 |
#include "color.h" |
| 27 |
#include "resolu.h" |
| 28 |
|
| 29 |
int outbytes; /* This had better be 32 bits! */ |
| 30 |
char *progname; |
| 31 |
int verbose = 0; |
| 32 |
float gamcor = 2.0; |
| 33 |
int bradj = 0; |
| 34 |
|
| 35 |
static void putrect(int xorg, int yorg, int xsize, int ysize); |
| 36 |
static void putfprect(int xorg, int yorg, int xsize, int ysize); |
| 37 |
static void putalong(long l); |
| 38 |
static void putashort(short s); |
| 39 |
static void putbyte(int b); |
| 40 |
static void putbytes(unsigned char *buf, int n ); |
| 41 |
static void putpict(int xsize, int ysize); |
| 42 |
static void getrow(FILE *in, char *cbuf, int xsize); |
| 43 |
static int packbits(unsigned char *ibits, unsigned char *pbits, int nbits); |
| 44 |
static void usage(void); |
| 45 |
|
| 46 |
|
| 47 |
/* First some utility routines */ |
| 48 |
static void |
| 49 |
putrect( |
| 50 |
int xorg, |
| 51 |
int yorg, |
| 52 |
int xsize, |
| 53 |
int ysize |
| 54 |
) |
| 55 |
{ |
| 56 |
putashort(yorg); |
| 57 |
putashort(xorg); |
| 58 |
putashort(ysize); |
| 59 |
putashort(xsize); |
| 60 |
} |
| 61 |
|
| 62 |
static void |
| 63 |
putfprect( |
| 64 |
int xorg, |
| 65 |
int yorg, |
| 66 |
int xsize, |
| 67 |
int ysize |
| 68 |
) |
| 69 |
{ |
| 70 |
putalong(yorg<<16); |
| 71 |
putalong(xorg<<16); |
| 72 |
putalong(ysize<<16); |
| 73 |
putalong(xsize<<16); |
| 74 |
} |
| 75 |
|
| 76 |
static void |
| 77 |
putalong( |
| 78 |
long l |
| 79 |
) |
| 80 |
{ |
| 81 |
putbyte((l>>24)&0xff); |
| 82 |
putbyte((l>>16)&0xff); |
| 83 |
putbyte((l>>8)&0xff); |
| 84 |
putbyte((l>>0)&0xff); |
| 85 |
} |
| 86 |
|
| 87 |
static void |
| 88 |
putashort( |
| 89 |
short s |
| 90 |
) |
| 91 |
{ |
| 92 |
putbyte((s>>8)&0xff); |
| 93 |
putbyte((s>>0)&0xff); |
| 94 |
} |
| 95 |
|
| 96 |
static void |
| 97 |
putbyte( |
| 98 |
int b |
| 99 |
) |
| 100 |
{ |
| 101 |
if (putc(b,stdout) == EOF && ferror(stdout)) { |
| 102 |
fprintf(stderr,"%s: error on write\n", progname); |
| 103 |
exit(1); |
| 104 |
} |
| 105 |
outbytes++; |
| 106 |
} |
| 107 |
|
| 108 |
static void |
| 109 |
putbytes( |
| 110 |
unsigned char *buf, |
| 111 |
int n |
| 112 |
) |
| 113 |
{ |
| 114 |
if(!fwrite(buf,n,1,stdout)) { |
| 115 |
fprintf(stderr,"%s: error on write\n", progname); |
| 116 |
exit(1); |
| 117 |
} |
| 118 |
outbytes+=n; |
| 119 |
} |
| 120 |
|
| 121 |
int |
| 122 |
main( |
| 123 |
int argc, |
| 124 |
char **argv |
| 125 |
) |
| 126 |
{ |
| 127 |
int xsize, ysize; |
| 128 |
int i, picsize; |
| 129 |
int ssizepos, lsizepos; |
| 130 |
SET_DEFAULT_BINARY(); |
| 131 |
SET_FILE_BINARY(stdin); |
| 132 |
SET_FILE_BINARY(stdout); |
| 133 |
progname = argv[0]; |
| 134 |
|
| 135 |
for (i = 1; i < argc ; i++) |
| 136 |
if (argv[i][0] == '-') |
| 137 |
switch (argv[i][1]) { |
| 138 |
case 'g': gamcor = atof(argv[++i]); |
| 139 |
break; |
| 140 |
|
| 141 |
case 'e': if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
| 142 |
usage(); |
| 143 |
else |
| 144 |
bradj = atoi(argv[++i]); |
| 145 |
break; |
| 146 |
|
| 147 |
case 'v': ; |
| 148 |
verbose = 1; |
| 149 |
break; |
| 150 |
|
| 151 |
case 'r': fprintf(stderr, "Sorry. Get a Macintosh :-)\n"); |
| 152 |
exit(1); |
| 153 |
|
| 154 |
case '-': i++; |
| 155 |
goto outofparse; |
| 156 |
break; /* NOTREACHED */ |
| 157 |
|
| 158 |
default: |
| 159 |
usage(); |
| 160 |
break; |
| 161 |
} |
| 162 |
else |
| 163 |
break; |
| 164 |
|
| 165 |
outofparse: |
| 166 |
|
| 167 |
if (i < argc - 2) |
| 168 |
usage(); |
| 169 |
|
| 170 |
if (i <= argc - 1 && freopen(argv[i], "r", stdin) == NULL) { |
| 171 |
fprintf(stderr, "%s: can not open input \"%s\"\n", |
| 172 |
progname, argv[i]); |
| 173 |
exit(1); |
| 174 |
} |
| 175 |
|
| 176 |
if (i <= argc - 2 && freopen(argv[i+1], "w", stdout) == NULL) { |
| 177 |
fprintf(stderr, "%s: can not open input \"%s\"\n", |
| 178 |
progname, argv[i+1]); |
| 179 |
exit(1); |
| 180 |
} |
| 181 |
|
| 182 |
#ifdef DEBUG |
| 183 |
fprintf(stderr, "Input file: %s\n", i <= argc - 1 ? argv[i] : "stdin"); |
| 184 |
fprintf(stderr, "Outut file: %s\n", i <= argc - 2 ? argv[i+1] : "stdout" ); |
| 185 |
fprintf(stderr, "Gamma: %f\n", gamcor); |
| 186 |
fprintf(stderr, "Brightness adjust: %d\n", bradj); |
| 187 |
fprintf(stderr, "Verbose: %s\n", verbose ? "on" : "off"); |
| 188 |
#endif |
| 189 |
|
| 190 |
|
| 191 |
/* OK. Now we read the size of the Radiance picture */ |
| 192 |
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
| 193 |
fgetresolu(&xsize, &ysize, stdin) < 0 /* != (YMAJOR|YDECR) */ ) { |
| 194 |
fprintf(stderr, "%s: not a radiance picture\n", progname); |
| 195 |
exit(1); |
| 196 |
} |
| 197 |
|
| 198 |
/* Set the gamma correction */ |
| 199 |
|
| 200 |
setcolrgam(gamcor); |
| 201 |
|
| 202 |
for(i=0; i<HEADER_SIZE; i++) |
| 203 |
putbyte(0); |
| 204 |
|
| 205 |
ssizepos = outbytes; |
| 206 |
putashort(0); /* low 16 bits of file size less HEADER_SIZE */ |
| 207 |
putrect(0,0,xsize,ysize); /* bounding box of picture */ |
| 208 |
putashort(PICT_picVersion); |
| 209 |
putashort(0x02ff); /* version 2 pict */ |
| 210 |
putashort(PICT_reservedHeader); /* reserved header opcode */ |
| 211 |
|
| 212 |
lsizepos = outbytes; |
| 213 |
putalong(0); /* full size of the file */ |
| 214 |
putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */ |
| 215 |
putalong(0); /* reserved */ |
| 216 |
|
| 217 |
putashort(PICT_clipRgn); /* the clip region */ |
| 218 |
putashort(10); |
| 219 |
putrect(0,0,xsize,ysize); |
| 220 |
|
| 221 |
if (verbose) |
| 222 |
fprintf(stderr, "%s: The picture is %d by %d, with a gamma of %f\n", |
| 223 |
progname, xsize, ysize, gamcor); |
| 224 |
|
| 225 |
|
| 226 |
putpict(xsize, ysize); /* Here is where all the work is done */ |
| 227 |
|
| 228 |
putashort(PICT_EndOfPicture); /* end of pict */ |
| 229 |
|
| 230 |
picsize = outbytes-HEADER_SIZE; |
| 231 |
fseek(stdout,ssizepos,0); |
| 232 |
putashort(picsize&0xffff); |
| 233 |
fseek(stdout,lsizepos,0); |
| 234 |
putalong(picsize); |
| 235 |
|
| 236 |
fclose(stdout); |
| 237 |
fclose(stdin); |
| 238 |
|
| 239 |
exit(0); |
| 240 |
return 0; /* lint fodder */ |
| 241 |
} |
| 242 |
|
| 243 |
static void |
| 244 |
putpict( |
| 245 |
int xsize, |
| 246 |
int ysize |
| 247 |
) |
| 248 |
{ |
| 249 |
int y; |
| 250 |
int nbytes, rowbytes; |
| 251 |
char *cbuf, *pbuf; |
| 252 |
|
| 253 |
cbuf = (char *)malloc(4 * xsize); |
| 254 |
|
| 255 |
if (cbuf == NULL) { |
| 256 |
fprintf(stderr, "%s: not enough memory\n", progname); |
| 257 |
exit(1); |
| 258 |
} |
| 259 |
|
| 260 |
pbuf = (char *)malloc(4 * xsize); |
| 261 |
|
| 262 |
if (pbuf == NULL) { |
| 263 |
fprintf(stderr, "%s: not enough memory\n", progname); |
| 264 |
exit(1); |
| 265 |
} |
| 266 |
|
| 267 |
putashort(PICT_Pack32BitsRect); /* 32 bit rgb */ |
| 268 |
rowbytes = 4*xsize; |
| 269 |
putalong(0x000000ff); /* base address */ |
| 270 |
|
| 271 |
|
| 272 |
if(rowbytes&1) |
| 273 |
rowbytes++; |
| 274 |
putashort(rowbytes|0x8000); /* rowbytes */ |
| 275 |
putrect(0,0,xsize,ysize); /* bounds */ |
| 276 |
putashort(0); /* version */ |
| 277 |
|
| 278 |
putashort(4); /* packtype */ |
| 279 |
putalong(0); /* packsize */ |
| 280 |
putalong(72<<16); /* hres */ |
| 281 |
putalong(72<<16); /* vres */ |
| 282 |
|
| 283 |
putashort(16); /* pixeltype */ |
| 284 |
putashort(32); /* pixelsize */ |
| 285 |
putashort(3); /* cmpcount */ |
| 286 |
|
| 287 |
|
| 288 |
putashort(8); /* cmpsize */ |
| 289 |
putalong(0); /* planebytes */ |
| 290 |
putalong(0); /* pmtable */ |
| 291 |
putalong(0); /* pmreserved */ |
| 292 |
|
| 293 |
|
| 294 |
putrect(0,0,xsize,ysize); /* scr rect */ |
| 295 |
putrect(0,0,xsize,ysize); /* dest rect */ |
| 296 |
|
| 297 |
|
| 298 |
putashort(0x40); /* transfer mode */ |
| 299 |
|
| 300 |
for(y=0; y<ysize; y++) { |
| 301 |
getrow(stdin, cbuf, xsize); |
| 302 |
|
| 303 |
nbytes = packbits(cbuf,pbuf,24*xsize); |
| 304 |
if(rowbytes>250) |
| 305 |
putashort(nbytes); |
| 306 |
else |
| 307 |
putbyte(nbytes); |
| 308 |
putbytes(pbuf,nbytes); |
| 309 |
} |
| 310 |
|
| 311 |
if(outbytes&1) |
| 312 |
putbyte(0); |
| 313 |
|
| 314 |
free(cbuf); |
| 315 |
free(pbuf); |
| 316 |
} |
| 317 |
|
| 318 |
static void |
| 319 |
getrow( |
| 320 |
FILE *in, |
| 321 |
char *cbuf, |
| 322 |
int xsize |
| 323 |
) |
| 324 |
{ |
| 325 |
extern char *tempbuffer(); /* defined in color.c */ |
| 326 |
COLR *scanin = NULL; |
| 327 |
int x; |
| 328 |
|
| 329 |
if ((scanin = (COLR *)tempbuffer(xsize*sizeof(COLR))) == NULL) { |
| 330 |
fprintf(stderr, "%s: not enough memory\n", progname); |
| 331 |
exit(1); |
| 332 |
} |
| 333 |
|
| 334 |
if (freadcolrs(scanin, xsize, in) < 0) { |
| 335 |
fprintf(stderr, "%s: read error\n", progname); |
| 336 |
exit(1); |
| 337 |
} |
| 338 |
|
| 339 |
if (bradj) /* Adjust exposure level */ |
| 340 |
shiftcolrs(scanin, xsize, bradj); |
| 341 |
|
| 342 |
|
| 343 |
colrs_gambs(scanin, xsize); /* Gamma correct it */ |
| 344 |
|
| 345 |
for (x = 0; x < xsize; x++) { |
| 346 |
cbuf[x] = scanin[x][RED]; |
| 347 |
cbuf[xsize + x] = scanin[x][GRN]; |
| 348 |
cbuf[2*xsize + x] = scanin[x][BLU]; |
| 349 |
} |
| 350 |
|
| 351 |
} |
| 352 |
|
| 353 |
|
| 354 |
static int |
| 355 |
packbits( |
| 356 |
unsigned char *ibits, |
| 357 |
unsigned char *pbits, |
| 358 |
int nbits |
| 359 |
) |
| 360 |
{ |
| 361 |
unsigned char *sptr; |
| 362 |
unsigned char *ibitsend; |
| 363 |
unsigned char *optr = pbits; |
| 364 |
int nbytes, todo, cc, count; |
| 365 |
|
| 366 |
nbytes = ((nbits-1)/8)+1; |
| 367 |
ibitsend = ibits+nbytes; |
| 368 |
while(ibits<ibitsend) { |
| 369 |
sptr = ibits; |
| 370 |
ibits += 2; |
| 371 |
while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])||(ibits[-1]!=ibits[0]))) |
| 372 |
ibits++; |
| 373 |
if(ibits != ibitsend) { |
| 374 |
ibits -= 2; |
| 375 |
} |
| 376 |
count = ibits-sptr; |
| 377 |
while(count) { |
| 378 |
todo = count>127 ? 127:count; |
| 379 |
count -= todo; |
| 380 |
*optr++ = todo-1; |
| 381 |
while(todo--) |
| 382 |
*optr++ = *sptr++; |
| 383 |
} |
| 384 |
if(ibits == ibitsend) |
| 385 |
break; |
| 386 |
sptr = ibits; |
| 387 |
cc = *ibits++; |
| 388 |
while( (ibits<ibitsend) && (*ibits == cc) ) |
| 389 |
ibits++; |
| 390 |
count = ibits-sptr; |
| 391 |
while(count) { |
| 392 |
todo = count>128 ? 128:count; |
| 393 |
count -= todo; |
| 394 |
*optr++ = 257-todo; |
| 395 |
*optr++ = cc; |
| 396 |
} |
| 397 |
} |
| 398 |
return optr-pbits; |
| 399 |
} |
| 400 |
|
| 401 |
static void |
| 402 |
usage(void) |
| 403 |
{ |
| 404 |
fprintf(stderr, "Usage: %s [-v] [-g gamma] [infile [outfile]]\n", |
| 405 |
progname); |
| 406 |
exit(2); |
| 407 |
} |
