1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.4 |
static const char RCSid[] = "$Id: ra_bmp.c,v 2.3 2004/03/28 20:33:14 schorsch Exp $"; |
3 |
greg |
2.1 |
#endif |
4 |
|
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/* |
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 |
|
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#include <stdio.h> |
9 |
schorsch |
2.3 |
#include <string.h> |
10 |
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|
11 |
greg |
2.1 |
#include "platform.h" |
12 |
|
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#include "color.h" |
13 |
greg |
2.4 |
#include "tonemap.h" |
14 |
greg |
2.1 |
#include "resolu.h" |
15 |
|
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#include "bmpfile.h" |
16 |
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|
17 |
|
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int bradj = 0; /* brightness adjustment */ |
18 |
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|
19 |
|
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double gamcor = 2.2; /* gamma correction value */ |
20 |
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|
21 |
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char *progname; |
22 |
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|
23 |
greg |
2.4 |
static void quiterr(const char *err); |
24 |
|
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static void tmap2bmp(char *fnin, char *fnout, char *expec, |
25 |
|
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RGBPRIMP monpri, double gamval); |
26 |
schorsch |
2.3 |
static void rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, int gry); |
27 |
|
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static void bmp2rad(BMPReader *brd, FILE *rfp, int inv); |
28 |
greg |
2.1 |
|
29 |
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|
30 |
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int |
31 |
|
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main(int argc, char *argv[]) |
32 |
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{ |
33 |
greg |
2.4 |
char *inpfile=NULL, *outfile=NULL; |
34 |
|
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char *expec = NULL; |
35 |
|
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int reverse = 0; |
36 |
|
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RGBPRIMP rgbp = stdprims; |
37 |
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RGBPRIMS myprims; |
38 |
|
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RESOLU rs; |
39 |
|
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int i; |
40 |
greg |
2.1 |
|
41 |
|
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progname = argv[0]; |
42 |
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|
43 |
|
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for (i = 1; i < argc; i++) |
44 |
|
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if (argv[i][0] == '-') |
45 |
|
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switch (argv[i][1]) { |
46 |
|
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case 'b': |
47 |
greg |
2.4 |
rgbp = NULL; |
48 |
greg |
2.1 |
break; |
49 |
|
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case 'g': |
50 |
|
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gamcor = atof(argv[++i]); |
51 |
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break; |
52 |
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case 'e': |
53 |
|
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
54 |
greg |
2.4 |
expec = argv[++i]; |
55 |
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else |
56 |
|
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bradj = atoi(argv[++i]); |
57 |
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break; |
58 |
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case 'p': |
59 |
|
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if (argc-i < 9) |
60 |
greg |
2.1 |
goto userr; |
61 |
greg |
2.4 |
myprims[RED][CIEX] = atof(argv[++i]); |
62 |
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myprims[RED][CIEY] = atof(argv[++i]); |
63 |
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myprims[GRN][CIEX] = atof(argv[++i]); |
64 |
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myprims[GRN][CIEY] = atof(argv[++i]); |
65 |
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myprims[BLU][CIEX] = atof(argv[++i]); |
66 |
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myprims[BLU][CIEY] = atof(argv[++i]); |
67 |
|
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myprims[WHT][CIEX] = atof(argv[++i]); |
68 |
|
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myprims[WHT][CIEY] = atof(argv[++i]); |
69 |
|
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if (rgbp == stdprims) |
70 |
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rgbp = myprims; |
71 |
greg |
2.1 |
break; |
72 |
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case 'r': |
73 |
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reverse = !reverse; |
74 |
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break; |
75 |
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case '\0': |
76 |
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break; |
77 |
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default: |
78 |
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goto userr; |
79 |
|
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} |
80 |
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else |
81 |
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break; |
82 |
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|
83 |
|
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if (i < argc-2) |
84 |
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goto userr; |
85 |
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|
86 |
|
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SET_FILE_BINARY(stdin); |
87 |
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SET_FILE_BINARY(stdout); |
88 |
|
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SET_DEFAULT_BINARY(); |
89 |
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|
90 |
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if (i <= argc-1 && strcmp(argv[i], "-")) |
91 |
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inpfile = argv[i]; |
92 |
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|
93 |
|
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if (i == argc-2 && strcmp(argv[i+1], "-")) |
94 |
|
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outfile = argv[i+1]; |
95 |
greg |
2.4 |
/* check for tone-mapping */ |
96 |
|
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if (expec != NULL) { |
97 |
|
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if (reverse) |
98 |
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goto userr; |
99 |
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tmap2bmp(inpfile, outfile, expec, rgbp, gamcor); |
100 |
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return(0); |
101 |
|
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} |
102 |
greg |
2.1 |
|
103 |
|
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setcolrgam(gamcor); /* set up conversion */ |
104 |
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|
105 |
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if (reverse) { |
106 |
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BMPReader *rdr; |
107 |
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/* open BMP file or stream */ |
108 |
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if (inpfile != NULL) |
109 |
|
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rdr = BMPopenInputFile(inpfile); |
110 |
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else |
111 |
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rdr = BMPopenInputStream(stdin); |
112 |
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|
113 |
|
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if (rdr == NULL) { |
114 |
|
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fprintf(stderr, "%s: cannot open or recognize BMP\n", |
115 |
|
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inpfile != NULL ? inpfile : "<stdin>"); |
116 |
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exit(1); |
117 |
|
|
} |
118 |
|
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/* open Radiance output */ |
119 |
|
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if (outfile != NULL && freopen(outfile, "w", stdout) == NULL) { |
120 |
|
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fprintf(stderr, "%s: cannot open for output\n", |
121 |
|
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outfile); |
122 |
|
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exit(1); |
123 |
|
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} |
124 |
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/* put Radiance header */ |
125 |
|
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newheader("RADIANCE", stdout); |
126 |
|
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printargs(i, argv, stdout); |
127 |
|
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fputformat(COLRFMT, stdout); |
128 |
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putchar('\n'); |
129 |
|
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rs.xr = rdr->hdr->width; |
130 |
|
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rs.yr = rdr->hdr->height; |
131 |
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rs.rt = YMAJOR; |
132 |
greg |
2.2 |
/* write scans downward if we can */ |
133 |
greg |
2.1 |
if (rdr->hdr->yIsDown || inpfile != NULL) |
134 |
|
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rs.rt |= YDECR; |
135 |
|
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fputsresolu(&rs, stdout); |
136 |
|
|
/* convert file */ |
137 |
|
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bmp2rad(rdr, stdout, !rdr->hdr->yIsDown && inpfile!=NULL); |
138 |
|
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/* flush output */ |
139 |
greg |
2.2 |
BMPcloseInput(rdr); |
140 |
greg |
2.1 |
if (fflush(stdout) < 0) |
141 |
|
|
quiterr("error writing Radiance output"); |
142 |
|
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} else { |
143 |
|
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BMPHeader *hdr; |
144 |
|
|
BMPWriter *wtr; |
145 |
|
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/* open Radiance input */ |
146 |
|
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if (inpfile != NULL && freopen(inpfile, "r", stdin) == NULL) { |
147 |
|
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fprintf(stderr, "%s: cannot open input file\n", |
148 |
|
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inpfile); |
149 |
|
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exit(1); |
150 |
|
|
} |
151 |
|
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/* get header info. */ |
152 |
|
|
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
153 |
|
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!fgetsresolu(&rs, stdin)) |
154 |
|
|
quiterr("bad Radiance picture format"); |
155 |
|
|
/* initialize BMP header */ |
156 |
greg |
2.4 |
if (rgbp == NULL) { |
157 |
|
|
hdr = BMPmappedHeader(scanlen(&rs), |
158 |
|
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numscans(&rs), 0, 256); |
159 |
greg |
2.2 |
if (outfile != NULL) |
160 |
|
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hdr->compr = BI_RLE8; |
161 |
|
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} else |
162 |
greg |
2.4 |
hdr = BMPtruecolorHeader(scanlen(&rs), |
163 |
|
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numscans(&rs), 0); |
164 |
greg |
2.1 |
if (hdr == NULL) |
165 |
|
|
quiterr("cannot initialize BMP header"); |
166 |
greg |
2.2 |
/* set up output direction */ |
167 |
|
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hdr->yIsDown = (rs.rt & YDECR) && |
168 |
schorsch |
2.3 |
((outfile == NULL) | (hdr->compr == BI_RLE8)); |
169 |
greg |
2.1 |
/* open BMP output */ |
170 |
|
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if (outfile != NULL) |
171 |
|
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wtr = BMPopenOutputFile(outfile, hdr); |
172 |
|
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else |
173 |
|
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wtr = BMPopenOutputStream(stdout, hdr); |
174 |
greg |
2.2 |
if (wtr == NULL) |
175 |
|
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quiterr("cannot allocate writer structure"); |
176 |
greg |
2.1 |
/* convert file */ |
177 |
greg |
2.4 |
rad2bmp(stdin, wtr, !hdr->yIsDown && rs.rt&YDECR, rgbp==NULL); |
178 |
greg |
2.1 |
/* flush output */ |
179 |
|
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if (fflush((FILE *)wtr->c_data) < 0) |
180 |
|
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quiterr("error writing BMP output"); |
181 |
greg |
2.2 |
BMPcloseOutput(wtr); |
182 |
greg |
2.1 |
} |
183 |
greg |
2.4 |
return(0); /* success */ |
184 |
greg |
2.1 |
userr: |
185 |
|
|
fprintf(stderr, |
186 |
greg |
2.4 |
"Usage: %s [-b][-g gamma][-e spec][-p xr yr xg yg xb yb xw yw] [input|- [output]]\n", |
187 |
greg |
2.1 |
progname); |
188 |
greg |
2.4 |
fprintf(stderr, |
189 |
|
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" or: %s -r [-g gamma][-e +/-stops] [input|- [output]]\n", |
190 |
|
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progname); |
191 |
|
|
return(1); |
192 |
greg |
2.1 |
} |
193 |
|
|
|
194 |
|
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/* print message and exit */ |
195 |
schorsch |
2.3 |
static void |
196 |
greg |
2.1 |
quiterr(const char *err) |
197 |
|
|
{ |
198 |
|
|
if (err != NULL) { |
199 |
|
|
fprintf(stderr, "%s: %s\n", progname, err); |
200 |
|
|
exit(1); |
201 |
|
|
} |
202 |
|
|
exit(0); |
203 |
|
|
} |
204 |
|
|
|
205 |
|
|
/* convert Radiance picture to BMP */ |
206 |
schorsch |
2.3 |
static void |
207 |
greg |
2.1 |
rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, int gry) |
208 |
|
|
{ |
209 |
|
|
COLR *scanin; |
210 |
|
|
int y, yend, ystp; |
211 |
|
|
int x; |
212 |
|
|
/* allocate scanline */ |
213 |
|
|
scanin = (COLR *)malloc(bwr->hdr->width*sizeof(COLR)); |
214 |
|
|
if (scanin == NULL) |
215 |
|
|
quiterr("out of memory in rad2bmp"); |
216 |
|
|
/* convert image */ |
217 |
|
|
if (inv) { |
218 |
|
|
y = bwr->hdr->height - 1; |
219 |
|
|
ystp = -1; yend = -1; |
220 |
|
|
} else { |
221 |
|
|
y = 0; |
222 |
|
|
ystp = 1; yend = bwr->hdr->height; |
223 |
|
|
} |
224 |
|
|
/* convert each scanline */ |
225 |
|
|
for ( ; y != yend; y += ystp) { |
226 |
|
|
if (freadcolrs(scanin, bwr->hdr->width, rfp) < 0) |
227 |
|
|
quiterr("error reading Radiance picture"); |
228 |
|
|
if (bradj) |
229 |
|
|
shiftcolrs(scanin, bwr->hdr->width, bradj); |
230 |
|
|
for (x = gry ? bwr->hdr->width : 0; x--; ) |
231 |
|
|
scanin[x][GRN] = normbright(scanin[x]); |
232 |
|
|
colrs_gambs(scanin, bwr->hdr->width); |
233 |
|
|
if (gry) |
234 |
|
|
for (x = bwr->hdr->width; x--; ) |
235 |
|
|
bwr->scanline[x] = scanin[x][GRN]; |
236 |
|
|
else |
237 |
|
|
for (x = bwr->hdr->width; x--; ) { |
238 |
|
|
bwr->scanline[3*x] = scanin[x][BLU]; |
239 |
|
|
bwr->scanline[3*x+1] = scanin[x][GRN]; |
240 |
|
|
bwr->scanline[3*x+2] = scanin[x][RED]; |
241 |
|
|
} |
242 |
|
|
bwr->yscan = y; |
243 |
|
|
x = BMPwriteScanline(bwr); |
244 |
|
|
if (x != BIR_OK) |
245 |
|
|
quiterr(BMPerrorMessage(x)); |
246 |
|
|
} |
247 |
|
|
/* free scanline */ |
248 |
|
|
free((void *)scanin); |
249 |
|
|
} |
250 |
|
|
|
251 |
|
|
/* convert BMP file to Radiance */ |
252 |
schorsch |
2.3 |
static void |
253 |
greg |
2.1 |
bmp2rad(BMPReader *brd, FILE *rfp, int inv) |
254 |
|
|
{ |
255 |
|
|
COLR *scanout; |
256 |
|
|
int y, yend, ystp; |
257 |
|
|
int x; |
258 |
|
|
/* allocate scanline */ |
259 |
|
|
scanout = (COLR *)malloc(brd->hdr->width*sizeof(COLR)); |
260 |
|
|
if (scanout == NULL) |
261 |
|
|
quiterr("out of memory in bmp2rad"); |
262 |
|
|
/* convert image */ |
263 |
|
|
if (inv) { |
264 |
|
|
y = brd->hdr->height - 1; |
265 |
|
|
ystp = -1; yend = -1; |
266 |
|
|
} else { |
267 |
|
|
y = 0; |
268 |
|
|
ystp = 1; yend = brd->hdr->height; |
269 |
|
|
} |
270 |
|
|
/* convert each scanline */ |
271 |
|
|
for ( ; y != yend; y += ystp) { |
272 |
|
|
x = BMPseekScanline(y, brd); |
273 |
|
|
if (x != BIR_OK) |
274 |
|
|
quiterr(BMPerrorMessage(x)); |
275 |
|
|
for (x = brd->hdr->width; x--; ) { |
276 |
|
|
RGBquad rgbq = BMPdecodePixel(x, brd); |
277 |
|
|
scanout[x][RED] = rgbq.r; |
278 |
|
|
scanout[x][GRN] = rgbq.g; |
279 |
|
|
scanout[x][BLU] = rgbq.b; |
280 |
|
|
} |
281 |
|
|
gambs_colrs(scanout, brd->hdr->width); |
282 |
|
|
if (bradj) |
283 |
|
|
shiftcolrs(scanout, brd->hdr->width, bradj); |
284 |
|
|
if (fwritecolrs(scanout, brd->hdr->width, rfp) < 0) |
285 |
|
|
quiterr("error writing Radiance picture"); |
286 |
|
|
} |
287 |
|
|
/* clean up */ |
288 |
|
|
free((void *)scanout); |
289 |
|
|
} |
290 |
greg |
2.4 |
|
291 |
|
|
/* Tone-map and convert Radiance picture */ |
292 |
|
|
static void |
293 |
|
|
tmap2bmp(char *fnin, char *fnout, char *expec, RGBPRIMP monpri, double gamval) |
294 |
|
|
{ |
295 |
|
|
int tmflags; |
296 |
|
|
BMPHeader *hdr; |
297 |
|
|
BMPWriter *wtr; |
298 |
|
|
RESOLU rs; |
299 |
|
|
FILE *fp; |
300 |
|
|
int xr, yr; |
301 |
|
|
BYTE *pa; |
302 |
|
|
int i; |
303 |
|
|
/* check tone-mapping spec */ |
304 |
|
|
i = strlen(expec); |
305 |
|
|
if (i && !strncmp(expec, "auto", i)) |
306 |
|
|
tmflags = TM_F_CAMERA; |
307 |
|
|
else if (i && !strncmp(expec, "human", i)) |
308 |
|
|
tmflags = TM_F_HUMAN & ~TM_F_UNIMPL; |
309 |
|
|
else if (i && !strncmp(expec, "linear", i)) |
310 |
|
|
tmflags = TM_F_LINEAR; |
311 |
|
|
else |
312 |
|
|
quiterr("illegal exposure specification (auto|human|linear)"); |
313 |
|
|
if (monpri == NULL) { |
314 |
|
|
tmflags |= TM_F_BW; |
315 |
|
|
monpri = stdprims; |
316 |
|
|
} |
317 |
|
|
/* open Radiance input */ |
318 |
|
|
if (fnin == NULL) |
319 |
|
|
fp = stdin; |
320 |
|
|
else if ((fp = fopen(fnin, "r")) == NULL) { |
321 |
|
|
fprintf(stderr, "%s: cannot open\n", fnin); |
322 |
|
|
exit(1); |
323 |
|
|
} |
324 |
|
|
/* get picture orientation */ |
325 |
|
|
if (fnin != NULL) { |
326 |
|
|
if (getheader(fp, NULL, NULL) < 0 || !fgetsresolu(&rs, fp)) |
327 |
|
|
quiterr("bad Radiance picture format"); |
328 |
|
|
rewind(fp); |
329 |
|
|
} else /* assume stdin has normal orient */ |
330 |
|
|
rs.rt = PIXSTANDARD; |
331 |
|
|
/* tone-map picture */ |
332 |
|
|
if (tmMapPicture(&pa, &xr, &yr, tmflags, monpri, gamval, |
333 |
|
|
0., 0., fnin, fp) != TM_E_OK) |
334 |
|
|
exit(1); |
335 |
|
|
/* initialize BMP header */ |
336 |
|
|
if (tmflags & TM_F_BW) { |
337 |
|
|
hdr = BMPmappedHeader(xr, yr, 0, 256); |
338 |
|
|
hdr->compr = BI_RLE8; |
339 |
|
|
} else |
340 |
|
|
hdr = BMPtruecolorHeader(xr, yr, 0); |
341 |
|
|
if (hdr == NULL) |
342 |
|
|
quiterr("cannot initialize BMP header"); |
343 |
|
|
/* open BMP output */ |
344 |
|
|
if (fnout != NULL) |
345 |
|
|
wtr = BMPopenOutputFile(fnout, hdr); |
346 |
|
|
else |
347 |
|
|
wtr = BMPopenOutputStream(stdout, hdr); |
348 |
|
|
if (wtr == NULL) |
349 |
|
|
quiterr("cannot allocate writer structure"); |
350 |
|
|
/* write to BMP file */ |
351 |
|
|
while (wtr->yscan < yr) { |
352 |
|
|
BYTE *scn = pa + xr*((tmflags & TM_F_BW) ? 1 : 3)* |
353 |
|
|
((rs.rt & YDECR) ? |
354 |
|
|
(yr-1 - wtr->yscan) : |
355 |
|
|
wtr->yscan); |
356 |
|
|
if (tmflags & TM_F_BW) |
357 |
|
|
memcpy((void *)wtr->scanline, (void *)scn, xr); |
358 |
|
|
else |
359 |
|
|
for (i = xr; i--; ) { |
360 |
|
|
wtr->scanline[3*i] = scn[3*i+BLU]; |
361 |
|
|
wtr->scanline[3*i+1] = scn[3*i+GRN]; |
362 |
|
|
wtr->scanline[3*i+2] = scn[3*i+RED]; |
363 |
|
|
} |
364 |
|
|
if ((i = BMPwriteScanline(wtr)) != BIR_OK) |
365 |
|
|
quiterr(BMPerrorMessage(i)); |
366 |
|
|
} |
367 |
|
|
/* flush output */ |
368 |
|
|
if (fflush((FILE *)wtr->c_data) < 0) |
369 |
|
|
quiterr("error writing BMP output"); |
370 |
|
|
/* clean up */ |
371 |
|
|
free((void *)pa); |
372 |
|
|
BMPcloseOutput(wtr); |
373 |
|
|
} |