5 |
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* program to convert between RADIANCE and Windows BMP file |
6 |
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*/ |
7 |
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|
8 |
< |
#include <stdio.h> |
8 |
> |
#include <math.h> |
9 |
> |
|
10 |
> |
#include "rtio.h" |
11 |
|
#include "platform.h" |
12 |
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#include "color.h" |
13 |
+ |
#include "tonemap.h" |
14 |
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#include "resolu.h" |
15 |
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#include "bmpfile.h" |
16 |
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|
17 |
< |
int bradj = 0; /* brightness adjustment */ |
17 |
> |
int bradj = 0; /* brightness adjustment */ |
18 |
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|
19 |
< |
double gamcor = 2.2; /* gamma correction value */ |
19 |
> |
double gamcor = 2.2; /* gamma correction value */ |
20 |
|
|
21 |
< |
char *progname; |
21 |
> |
char *progname; |
22 |
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|
23 |
< |
void quiterr(const char *); |
24 |
< |
void rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, int gry); |
25 |
< |
void bmp2rad(BMPReader *brd, FILE *rfp, int inv); |
23 |
> |
static void quiterr(const char *err); |
24 |
> |
static void tmap2bmp(char *fnin, char *fnout, char *expec, |
25 |
> |
RGBPRIMP monpri, double gamval); |
26 |
> |
static void rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, RGBPRIMP monpri); |
27 |
> |
static void bmp2rad(BMPReader *brd, FILE *rfp, int inv); |
28 |
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|
29 |
+ |
static RGBPRIMP rgbinp = stdprims; /* RGB input primitives */ |
30 |
+ |
static RGBPRIMS myinprims; /* custom primitives holder */ |
31 |
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|
32 |
+ |
static gethfunc headline; |
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+ |
|
34 |
+ |
|
35 |
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int |
36 |
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main(int argc, char *argv[]) |
37 |
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{ |
38 |
< |
char *inpfile=NULL, *outfile=NULL; |
39 |
< |
int gryflag = 0; |
40 |
< |
int reverse = 0; |
41 |
< |
RESOLU rs; |
42 |
< |
int i; |
38 |
> |
char *inpfile=NULL, *outfile=NULL; |
39 |
> |
char *expec = NULL; |
40 |
> |
int reverse = 0; |
41 |
> |
RGBPRIMP rgbp = stdprims; |
42 |
> |
RGBPRIMS myprims; |
43 |
> |
RESOLU rs; |
44 |
> |
int i; |
45 |
|
|
46 |
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progname = argv[0]; |
47 |
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|
48 |
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for (i = 1; i < argc; i++) |
49 |
< |
if (argv[i][0] == '-') |
49 |
> |
if (argv[i][0] == '-' && argv[i][1]) |
50 |
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switch (argv[i][1]) { |
51 |
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case 'b': |
52 |
< |
gryflag = 1; |
52 |
> |
rgbp = NULL; |
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break; |
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case 'g': |
55 |
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gamcor = atof(argv[++i]); |
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break; |
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case 'e': |
58 |
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
59 |
+ |
expec = argv[++i]; |
60 |
+ |
else |
61 |
+ |
bradj = atoi(argv[++i]); |
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+ |
break; |
63 |
+ |
case 'p': |
64 |
+ |
if (argc-i < 9) |
65 |
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goto userr; |
66 |
< |
bradj = atoi(argv[++i]); |
66 |
> |
myprims[RED][CIEX] = atof(argv[++i]); |
67 |
> |
myprims[RED][CIEY] = atof(argv[++i]); |
68 |
> |
myprims[GRN][CIEX] = atof(argv[++i]); |
69 |
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myprims[GRN][CIEY] = atof(argv[++i]); |
70 |
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myprims[BLU][CIEX] = atof(argv[++i]); |
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myprims[BLU][CIEY] = atof(argv[++i]); |
72 |
> |
myprims[WHT][CIEX] = atof(argv[++i]); |
73 |
> |
myprims[WHT][CIEY] = atof(argv[++i]); |
74 |
> |
if (rgbp == stdprims) |
75 |
> |
rgbp = myprims; |
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break; |
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case 'r': |
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reverse = !reverse; |
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break; |
53 |
– |
case '\0': |
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– |
break; |
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default: |
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goto userr; |
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} |
95 |
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|
96 |
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if (i == argc-2 && strcmp(argv[i+1], "-")) |
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outfile = argv[i+1]; |
98 |
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/* check for tone-mapping */ |
99 |
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if (expec != NULL) { |
100 |
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if (reverse) |
101 |
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goto userr; |
102 |
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tmap2bmp(inpfile, outfile, expec, rgbp, gamcor); |
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return(0); |
104 |
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} |
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|
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setcolrgam(gamcor); /* set up conversion */ |
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|
152 |
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exit(1); |
153 |
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} |
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/* get header info. */ |
155 |
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if (checkheader(stdin, COLRFMT, NULL) < 0 || |
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> |
if (getheader(stdin, headline, NULL) < 0 || |
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!fgetsresolu(&rs, stdin)) |
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quiterr("bad Radiance picture format"); |
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/* initialize BMP header */ |
159 |
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if (gryflag) { |
160 |
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hdr = BMPmappedHeader(numscans(&rs), |
161 |
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scanlen(&rs), 0, 256); |
159 |
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if (rgbp == NULL) { |
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hdr = BMPmappedHeader(scanlen(&rs), |
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numscans(&rs), 0, 256); |
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/* |
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if (outfile != NULL) |
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hdr->compr = BI_RLE8; |
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*/ |
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} else |
167 |
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hdr = BMPtruecolorHeader(numscans(&rs), |
168 |
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scanlen(&rs), 0); |
167 |
> |
hdr = BMPtruecolorHeader(scanlen(&rs), |
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> |
numscans(&rs), 0); |
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if (hdr == NULL) |
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quiterr("cannot initialize BMP header"); |
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/* set up output direction */ |
172 |
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hdr->yIsDown = (rs.rt & YDECR) && |
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(outfile == NULL | hdr->compr == BI_RLE8); |
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> |
hdr->yIsDown = ((outfile == NULL) | (hdr->compr == BI_RLE8)); |
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/* open BMP output */ |
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if (outfile != NULL) |
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wtr = BMPopenOutputFile(outfile, hdr); |
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if (wtr == NULL) |
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quiterr("cannot allocate writer structure"); |
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/* convert file */ |
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< |
rad2bmp(stdin, wtr, !hdr->yIsDown && (rs.rt&YDECR), gryflag); |
181 |
> |
rad2bmp(stdin, wtr, !hdr->yIsDown, rgbp); |
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/* flush output */ |
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if (fflush((FILE *)wtr->c_data) < 0) |
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quiterr("error writing BMP output"); |
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BMPcloseOutput(wtr); |
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} |
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< |
exit(0); /* success */ |
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> |
return(0); /* success */ |
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userr: |
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fprintf(stderr, |
190 |
< |
"Usage: %s [-r][-g gamma][-e +/-stops] [input [output]]\n", |
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> |
"Usage: %s [-b][-g gamma][-e spec][-p xr yr xg yg xb yb xw yw] [input|- [output]]\n", |
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progname); |
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< |
exit(1); |
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< |
return(1); /* gratis return */ |
192 |
> |
fprintf(stderr, |
193 |
> |
" or: %s -r [-g gamma][-e +/-stops] [input|- [output]]\n", |
194 |
> |
progname); |
195 |
> |
return(1); |
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} |
197 |
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|
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/* print message and exit */ |
199 |
< |
void |
199 |
> |
static void |
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quiterr(const char *err) |
201 |
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{ |
202 |
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if (err != NULL) { |
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exit(0); |
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} |
208 |
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|
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+ |
/* process header line (don't echo) */ |
210 |
+ |
static int |
211 |
+ |
headline(char *s, void *p) |
212 |
+ |
{ |
213 |
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char fmt[MAXFMTLEN]; |
214 |
+ |
|
215 |
+ |
if (formatval(fmt, s)) { /* check if format string */ |
216 |
+ |
if (!strcmp(fmt,COLRFMT)) |
217 |
+ |
return(0); |
218 |
+ |
if (!strcmp(fmt,CIEFMT)) { |
219 |
+ |
rgbinp = TM_XYZPRIM; |
220 |
+ |
return(0); |
221 |
+ |
} |
222 |
+ |
return(-1); |
223 |
+ |
} |
224 |
+ |
if (isprims(s)) { /* get input primaries */ |
225 |
+ |
primsval(myinprims, s); |
226 |
+ |
rgbinp = myinprims; |
227 |
+ |
return(0); |
228 |
+ |
} |
229 |
+ |
/* should I grok colcorr also? */ |
230 |
+ |
return(0); |
231 |
+ |
} |
232 |
+ |
|
233 |
+ |
|
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/* convert Radiance picture to BMP */ |
235 |
< |
void |
236 |
< |
rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, int gry) |
235 |
> |
static void |
236 |
> |
rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, RGBPRIMP monpri) |
237 |
|
{ |
238 |
+ |
int usexfm = 0; |
239 |
+ |
COLORMAT xfm; |
240 |
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COLR *scanin; |
241 |
+ |
COLOR cval; |
242 |
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int y, yend, ystp; |
243 |
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int x; |
244 |
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/* allocate scanline */ |
245 |
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scanin = (COLR *)malloc(bwr->hdr->width*sizeof(COLR)); |
246 |
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if (scanin == NULL) |
247 |
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quiterr("out of memory in rad2bmp"); |
248 |
+ |
/* set up color conversion */ |
249 |
+ |
usexfm = (monpri != NULL ? rgbinp != monpri : |
250 |
+ |
rgbinp != TM_XYZPRIM && rgbinp != stdprims); |
251 |
+ |
if (usexfm) { |
252 |
+ |
double expcomp = pow(2.0, (double)bradj); |
253 |
+ |
if (rgbinp == TM_XYZPRIM) |
254 |
+ |
compxyz2rgbWBmat(xfm, monpri); |
255 |
+ |
else |
256 |
+ |
comprgb2rgbWBmat(xfm, rgbinp, monpri); |
257 |
+ |
for (y = 0; y < 3; y++) |
258 |
+ |
for (x = 0; x < 3; x++) |
259 |
+ |
xfm[y][x] *= expcomp; |
260 |
+ |
} |
261 |
|
/* convert image */ |
262 |
|
if (inv) { |
263 |
|
y = bwr->hdr->height - 1; |
270 |
|
for ( ; y != yend; y += ystp) { |
271 |
|
if (freadcolrs(scanin, bwr->hdr->width, rfp) < 0) |
272 |
|
quiterr("error reading Radiance picture"); |
273 |
< |
if (bradj) |
273 |
> |
if (usexfm) |
274 |
> |
for (x = bwr->hdr->width; x--; ) { |
275 |
> |
colr_color(cval, scanin[x]); |
276 |
> |
colortrans(cval, xfm, cval); |
277 |
> |
setcolr(scanin[x], colval(cval,RED), |
278 |
> |
colval(cval,GRN), |
279 |
> |
colval(cval,BLU)); |
280 |
> |
} |
281 |
> |
else if (bradj) |
282 |
|
shiftcolrs(scanin, bwr->hdr->width, bradj); |
283 |
< |
for (x = gry ? bwr->hdr->width : 0; x--; ) |
284 |
< |
scanin[x][GRN] = normbright(scanin[x]); |
283 |
> |
if (monpri == NULL && rgbinp != TM_XYZPRIM) |
284 |
> |
for (x = bwr->hdr->width; x--; ) |
285 |
> |
scanin[x][GRN] = normbright(scanin[x]); |
286 |
|
colrs_gambs(scanin, bwr->hdr->width); |
287 |
< |
if (gry) |
287 |
> |
if (monpri == NULL) |
288 |
|
for (x = bwr->hdr->width; x--; ) |
289 |
|
bwr->scanline[x] = scanin[x][GRN]; |
290 |
|
else |
303 |
|
} |
304 |
|
|
305 |
|
/* convert BMP file to Radiance */ |
306 |
< |
void |
306 |
> |
static void |
307 |
|
bmp2rad(BMPReader *brd, FILE *rfp, int inv) |
308 |
|
{ |
309 |
|
COLR *scanout; |
340 |
|
} |
341 |
|
/* clean up */ |
342 |
|
free((void *)scanout); |
343 |
+ |
} |
344 |
+ |
|
345 |
+ |
/* Tone-map and convert Radiance picture */ |
346 |
+ |
static void |
347 |
+ |
tmap2bmp(char *fnin, char *fnout, char *expec, RGBPRIMP monpri, double gamval) |
348 |
+ |
{ |
349 |
+ |
int tmflags; |
350 |
+ |
BMPHeader *hdr; |
351 |
+ |
BMPWriter *wtr; |
352 |
+ |
FILE *fp; |
353 |
+ |
int xr, yr; |
354 |
+ |
uby8 *pa; |
355 |
+ |
int i; |
356 |
+ |
/* check tone-mapping spec */ |
357 |
+ |
i = strlen(expec); |
358 |
+ |
if (i && !strncmp(expec, "auto", i)) |
359 |
+ |
tmflags = TM_F_CAMERA; |
360 |
+ |
else if (i && !strncmp(expec, "human", i)) |
361 |
+ |
tmflags = TM_F_HUMAN & ~TM_F_UNIMPL; |
362 |
+ |
else if (i && !strncmp(expec, "linear", i)) |
363 |
+ |
tmflags = TM_F_LINEAR; |
364 |
+ |
else |
365 |
+ |
quiterr("illegal exposure specification (auto|human|linear)"); |
366 |
+ |
if (monpri == NULL) { |
367 |
+ |
tmflags |= TM_F_BW; |
368 |
+ |
monpri = stdprims; |
369 |
+ |
} |
370 |
+ |
/* open Radiance input */ |
371 |
+ |
if (fnin == NULL) |
372 |
+ |
fp = stdin; |
373 |
+ |
else if ((fp = fopen(fnin, "r")) == NULL) { |
374 |
+ |
fprintf(stderr, "%s: cannot open\n", fnin); |
375 |
+ |
exit(1); |
376 |
+ |
} |
377 |
+ |
/* tone-map picture */ |
378 |
+ |
if (tmMapPicture(&pa, &xr, &yr, tmflags, monpri, gamval, |
379 |
+ |
0., 0., fnin, fp) != TM_E_OK) |
380 |
+ |
exit(1); |
381 |
+ |
/* initialize BMP header */ |
382 |
+ |
if (tmflags & TM_F_BW) { |
383 |
+ |
hdr = BMPmappedHeader(xr, yr, 0, 256); |
384 |
+ |
if (fnout != NULL) |
385 |
+ |
hdr->compr = BI_RLE8; |
386 |
+ |
} else |
387 |
+ |
hdr = BMPtruecolorHeader(xr, yr, 0); |
388 |
+ |
if (hdr == NULL) |
389 |
+ |
quiterr("cannot initialize BMP header"); |
390 |
+ |
/* open BMP output */ |
391 |
+ |
if (fnout != NULL) |
392 |
+ |
wtr = BMPopenOutputFile(fnout, hdr); |
393 |
+ |
else |
394 |
+ |
wtr = BMPopenOutputStream(stdout, hdr); |
395 |
+ |
if (wtr == NULL) |
396 |
+ |
quiterr("cannot allocate writer structure"); |
397 |
+ |
/* write to BMP file */ |
398 |
+ |
while (wtr->yscan < yr) { |
399 |
+ |
uby8 *scn = pa + xr*((tmflags & TM_F_BW) ? 1 : 3)* |
400 |
+ |
(yr-1 - wtr->yscan); |
401 |
+ |
if (tmflags & TM_F_BW) |
402 |
+ |
memcpy((void *)wtr->scanline, (void *)scn, xr); |
403 |
+ |
else |
404 |
+ |
for (i = xr; i--; ) { |
405 |
+ |
wtr->scanline[3*i] = scn[3*i+BLU]; |
406 |
+ |
wtr->scanline[3*i+1] = scn[3*i+GRN]; |
407 |
+ |
wtr->scanline[3*i+2] = scn[3*i+RED]; |
408 |
+ |
} |
409 |
+ |
if ((i = BMPwriteScanline(wtr)) != BIR_OK) |
410 |
+ |
quiterr(BMPerrorMessage(i)); |
411 |
+ |
} |
412 |
+ |
/* flush output */ |
413 |
+ |
if (fflush((FILE *)wtr->c_data) < 0) |
414 |
+ |
quiterr("error writing BMP output"); |
415 |
+ |
/* clean up */ |
416 |
+ |
if (fnin != NULL) |
417 |
+ |
fclose(fp); |
418 |
+ |
free((void *)pa); |
419 |
+ |
BMPcloseOutput(wtr); |
420 |
|
} |