| 1 |
– |
/* Copyright (c) 1986 Regents of the University of California */ |
| 2 |
– |
|
| 1 |
|
#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
|
#endif |
| 6 |
– |
|
| 4 |
|
/* |
| 5 |
|
* ra_bn.c - program to convert between RADIANCE and barneyscan picture format. |
| 6 |
|
* |
| 8 |
|
*/ |
| 9 |
|
|
| 10 |
|
#include <stdio.h> |
| 11 |
+ |
#include <time.h> |
| 12 |
+ |
#include <math.h> |
| 13 |
|
|
| 14 |
+ |
#include "platform.h" |
| 15 |
|
#include "color.h" |
| 16 |
+ |
#include "resolu.h" |
| 17 |
|
|
| 18 |
< |
extern double atof(), pow(); |
| 18 |
> |
double gamcor = 2.0; /* gamma correction */ |
| 19 |
|
|
| 20 |
< |
double gamma = 2.0; /* gamma correction */ |
| 20 |
> |
int bradj = 0; /* brightness adjustment */ |
| 21 |
|
|
| 22 |
|
char *progname; |
| 23 |
|
|
| 34 |
|
{ |
| 35 |
|
int reverse = 0; |
| 36 |
|
int i; |
| 37 |
< |
|
| 37 |
> |
SET_DEFAULT_BINARY(); |
| 38 |
> |
SET_FILE_BINARY(stdin); |
| 39 |
> |
SET_FILE_BINARY(stdout); |
| 40 |
|
progname = argv[0]; |
| 41 |
|
|
| 42 |
|
for (i = 1; i < argc; i++) |
| 43 |
|
if (argv[i][0] == '-') |
| 44 |
|
switch (argv[i][1]) { |
| 45 |
|
case 'g': |
| 46 |
< |
gamma = atof(argv[++i]); |
| 46 |
> |
gamcor = atof(argv[++i]); |
| 47 |
|
break; |
| 48 |
|
case 'r': |
| 49 |
|
reverse = !reverse; |
| 50 |
|
break; |
| 51 |
+ |
case 'e': |
| 52 |
+ |
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
| 53 |
+ |
goto userr; |
| 54 |
+ |
bradj = atoi(argv[++i]); |
| 55 |
+ |
break; |
| 56 |
|
default: |
| 57 |
|
goto userr; |
| 58 |
|
} |
| 59 |
|
else |
| 60 |
|
break; |
| 61 |
+ |
/* set gamma correction */ |
| 62 |
+ |
setcolrgam(gamcor); |
| 63 |
|
|
| 64 |
|
if (reverse) { |
| 65 |
|
if (i > argc-1 || i < argc-2) |
| 76 |
|
quiterr(errmsg); |
| 77 |
|
} |
| 78 |
|
/* put header */ |
| 79 |
+ |
newheader("RADIANCE", stdout); |
| 80 |
|
printargs(i, argv, rafp); |
| 81 |
+ |
fputformat(COLRFMT, rafp); |
| 82 |
|
putc('\n', rafp); |
| 83 |
< |
fputresolu(YMAJOR|YDECR, xmax, ymax, rafp); |
| 83 |
> |
fprtresolu(xmax, ymax, rafp); |
| 84 |
|
/* convert file */ |
| 85 |
|
bn2ra(); |
| 86 |
|
} else { |
| 94 |
|
quiterr(errmsg); |
| 95 |
|
} |
| 96 |
|
/* get header */ |
| 97 |
< |
getheader(rafp, NULL); |
| 98 |
< |
if (fgetresolu(&xmax, &ymax, rafp) != (YMAJOR|YDECR)) |
| 97 |
> |
if (checkheader(rafp, COLRFMT, NULL) < 0 || |
| 98 |
> |
fgetresolu(&xmax, &ymax, rafp) < 0) |
| 99 |
|
quiterr("bad RADIANCE format"); |
| 100 |
|
if (openbarney(argv[i+1], "w") < 0) { |
| 101 |
|
sprintf(errmsg, "cannot open output \"%s\"", argv[i+1]); |
| 106 |
|
} |
| 107 |
|
quiterr(NULL); |
| 108 |
|
userr: |
| 109 |
< |
fprintf(stderr, "Usage: %s {input|-} output\n", progname); |
| 98 |
< |
fprintf(stderr, " or: %s -r [-g gamma] input [output|-]\n", |
| 109 |
> |
fprintf(stderr, "Usage: %s [-g gamma][-e +/-stops] {input|-} output\n", |
| 110 |
|
progname); |
| 111 |
+ |
fprintf(stderr, " or: %s -r [-g gamma][-e +/-stops] input [output|-]\n", |
| 112 |
+ |
progname); |
| 113 |
|
exit(1); |
| 114 |
|
} |
| 115 |
|
|
| 178 |
|
|
| 179 |
|
ra2bn() /* convert radiance to barneyscan */ |
| 180 |
|
{ |
| 181 |
< |
unsigned char gmap[1024]; |
| 182 |
< |
register int i,k,c; |
| 170 |
< |
register COLOR *inline; |
| 181 |
> |
register int i; |
| 182 |
> |
register COLR *inl; |
| 183 |
|
int j; |
| 184 |
|
|
| 185 |
< |
if ((inline = (COLOR *)malloc(xmax*sizeof(COLOR))) == NULL) |
| 185 |
> |
if ((inl = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
| 186 |
|
quiterr("out of memory"); |
| 175 |
– |
for (i = 0; i < 1024; i++) |
| 176 |
– |
gmap[i] = 256.*pow((i+.5)/1024., 1./gamma); |
| 187 |
|
for (j = 0; j < ymax; j++) { |
| 188 |
< |
if (freadscan(inline, xmax, rafp) < 0) |
| 188 |
> |
if (freadcolrs(inl, xmax, rafp) < 0) |
| 189 |
|
quiterr("error reading RADIANCE file"); |
| 190 |
< |
for (i = 0; i < xmax; i++) |
| 191 |
< |
for (k = 0; k < 3; k++) { |
| 192 |
< |
c = 1024.*colval(inline[i],k); |
| 193 |
< |
if (c >= 1024) |
| 194 |
< |
c = 1023; |
| 195 |
< |
putc(gmap[c], bnfp[k]); |
| 196 |
< |
} |
| 190 |
> |
if (bradj) |
| 191 |
> |
shiftcolrs(inl, xmax, bradj); |
| 192 |
> |
colrs_gambs(inl, xmax); |
| 193 |
> |
for (i = 0; i < xmax; i++) { |
| 194 |
> |
putc(inl[i][RED], bnfp[0]); |
| 195 |
> |
putc(inl[i][GRN], bnfp[1]); |
| 196 |
> |
putc(inl[i][BLU], bnfp[2]); |
| 197 |
> |
} |
| 198 |
> |
if (ferror(bnfp[0]) || ferror(bnfp[1]) || ferror(bnfp[2])) |
| 199 |
> |
quiterr("error writing Barney files"); |
| 200 |
|
} |
| 201 |
< |
free((char *)inline); |
| 201 |
> |
free((void *)inl); |
| 202 |
|
} |
| 203 |
|
|
| 204 |
|
|
| 205 |
|
bn2ra() /* convert barneyscan to radiance */ |
| 206 |
|
{ |
| 207 |
< |
float gmap[256]; |
| 208 |
< |
register int i,k,c; |
| 196 |
< |
register COLOR *outline; |
| 207 |
> |
register int i; |
| 208 |
> |
register COLR *outline; |
| 209 |
|
int j; |
| 210 |
|
|
| 211 |
< |
if ((outline = (COLOR *)malloc(xmax*sizeof(COLOR))) == NULL) |
| 211 |
> |
if ((outline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
| 212 |
|
quiterr("out of memory"); |
| 201 |
– |
for (i = 0; i < 256; i++) |
| 202 |
– |
gmap[i] = pow((i+.5)/256., gamma); |
| 213 |
|
for (j = 0; j < ymax; j++) { |
| 214 |
< |
for (i = 0; i < xmax; i++) |
| 215 |
< |
for (k = 0; k < 3; k++) |
| 216 |
< |
if ((c = getc(bnfp[k])) == EOF) |
| 217 |
< |
quiterr("error reading barney file"); |
| 218 |
< |
else |
| 219 |
< |
colval(outline[i],k) = gmap[c]; |
| 220 |
< |
if (fwritescan(outline, xmax, rafp) < 0) |
| 214 |
> |
for (i = 0; i < xmax; i++) { |
| 215 |
> |
outline[i][RED] = getc(bnfp[0]); |
| 216 |
> |
outline[i][GRN] = getc(bnfp[1]); |
| 217 |
> |
outline[i][BLU] = getc(bnfp[2]); |
| 218 |
> |
} |
| 219 |
> |
if (feof(bnfp[0]) || feof(bnfp[1]) || feof(bnfp[2])) |
| 220 |
> |
quiterr("error reading barney file"); |
| 221 |
> |
gambs_colrs(outline, xmax); |
| 222 |
> |
if (bradj) |
| 223 |
> |
shiftcolrs(outline, xmax, bradj); |
| 224 |
> |
if (fwritecolrs(outline, xmax, rafp) < 0) |
| 225 |
|
quiterr("error writing RADIANCE file"); |
| 226 |
|
} |
| 227 |
< |
free((char *)outline); |
| 227 |
> |
free((void *)outline); |
| 228 |
|
} |
