1 |
greg |
1.1 |
#ifndef lint |
2 |
greg |
2.9 |
static const char RCSid[] = "$Id$"; |
3 |
greg |
1.1 |
#endif |
4 |
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/* |
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* program to convert between RADIANCE and 24-bit rasterfiles. |
6 |
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*/ |
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#include <stdio.h> |
9 |
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10 |
greg |
2.3 |
#ifdef MSDOS |
11 |
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#include <fcntl.h> |
12 |
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#endif |
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14 |
greg |
2.9 |
#include <time.h> |
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16 |
greg |
2.5 |
#include <math.h> |
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18 |
greg |
1.1 |
#include "rasterfile.h" |
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#include "color.h" |
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22 |
greg |
1.11 |
#include "resolu.h" |
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greg |
1.1 |
|
24 |
greg |
2.6 |
double gamcor = 2.2; /* gamma correction */ |
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greg |
1.1 |
|
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greg |
1.7 |
int bradj = 0; /* brightness adjustment */ |
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greg |
1.1 |
char *progname; |
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int xmax, ymax; |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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struct rasterfile head; |
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int reverse = 0; |
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int i; |
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greg |
2.3 |
#ifdef MSDOS |
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extern int _fmode; |
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_fmode = O_BINARY; |
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setmode(fileno(stdin), O_BINARY); |
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setmode(fileno(stdout), O_BINARY); |
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#endif |
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greg |
1.1 |
progname = argv[0]; |
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48 |
greg |
1.9 |
head.ras_type = RT_STANDARD; |
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greg |
1.1 |
for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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case 'g': |
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greg |
2.6 |
gamcor = atof(argv[++i]); |
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greg |
1.1 |
break; |
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greg |
1.7 |
case 'e': |
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
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goto userr; |
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bradj = atoi(argv[++i]); |
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break; |
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greg |
1.1 |
case 'r': |
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greg |
1.9 |
if (!strcmp(argv[i], "-rgb")) |
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head.ras_type = RT_FORMAT_RGB; |
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else |
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reverse = 1; |
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greg |
1.1 |
break; |
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default: |
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goto userr; |
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} |
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else |
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break; |
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if (i < argc-2) |
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goto userr; |
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if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) { |
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fprintf(stderr, "%s: can't open input \"%s\"\n", |
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progname, argv[i]); |
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exit(1); |
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} |
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if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) { |
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greg |
2.7 |
fprintf(stderr, "%s: can't open output \"%s\"\n", |
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greg |
1.1 |
progname, argv[i+1]); |
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exit(1); |
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} |
84 |
greg |
2.6 |
setcolrgam(gamcor); |
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greg |
1.1 |
if (reverse) { |
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/* get header */ |
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if (fread((char *)&head, sizeof(head), 1, stdin) != 1) |
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quiterr("missing header"); |
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if (head.ras_magic != RAS_MAGIC) |
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quiterr("bad raster format"); |
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xmax = head.ras_width; |
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ymax = head.ras_height; |
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greg |
1.6 |
if ((head.ras_type != RT_STANDARD |
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&& head.ras_type != RT_FORMAT_RGB) |
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|| head.ras_maptype != RMT_NONE |
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|| head.ras_depth != 24) |
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greg |
1.1 |
quiterr("incompatible format"); |
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/* put header */ |
99 |
greg |
2.8 |
newheader("RADIANCE", stdout); |
100 |
greg |
1.1 |
printargs(i, argv, stdout); |
101 |
greg |
1.5 |
fputformat(COLRFMT, stdout); |
102 |
greg |
1.1 |
putchar('\n'); |
103 |
greg |
1.11 |
fprtresolu(xmax, ymax, stdout); |
104 |
greg |
1.1 |
/* convert file */ |
105 |
greg |
2.4 |
pr2ra(head.ras_type, head.ras_length/ymax - xmax*3); |
106 |
greg |
1.1 |
} else { |
107 |
greg |
1.5 |
/* get header info. */ |
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if (checkheader(stdin, COLRFMT, NULL) < 0 || |
109 |
greg |
1.11 |
fgetresolu(&xmax, &ymax, stdin) < 0) |
110 |
greg |
1.5 |
quiterr("bad picture format"); |
111 |
greg |
1.1 |
/* write rasterfile header */ |
112 |
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head.ras_magic = RAS_MAGIC; |
113 |
greg |
2.4 |
head.ras_width = xmax + (xmax&1); |
114 |
greg |
1.1 |
head.ras_height = ymax; |
115 |
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head.ras_depth = 24; |
116 |
greg |
2.4 |
head.ras_length = head.ras_width*head.ras_height*3; |
117 |
greg |
1.1 |
head.ras_maptype = RMT_NONE; |
118 |
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head.ras_maplength = 0; |
119 |
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fwrite((char *)&head, sizeof(head), 1, stdout); |
120 |
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/* convert file */ |
121 |
greg |
2.4 |
ra2pr(head.ras_type, head.ras_length/ymax - xmax*3); |
122 |
greg |
1.1 |
} |
123 |
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exit(0); |
124 |
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userr: |
125 |
greg |
1.7 |
fprintf(stderr, "Usage: %s [-r][-g gamma][-e +/-stops] [input [output]]\n", |
126 |
greg |
1.1 |
progname); |
127 |
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exit(1); |
128 |
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} |
129 |
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130 |
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131 |
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quiterr(err) /* print message and exit */ |
132 |
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char *err; |
133 |
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{ |
134 |
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if (err != NULL) { |
135 |
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fprintf(stderr, "%s: %s\n", progname, err); |
136 |
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exit(1); |
137 |
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} |
138 |
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exit(0); |
139 |
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} |
140 |
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141 |
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142 |
greg |
2.4 |
pr2ra(rf, pad) /* convert 24-bit scanlines to Radiance picture */ |
143 |
greg |
1.6 |
int rf; |
144 |
greg |
2.4 |
int pad; |
145 |
greg |
1.1 |
{ |
146 |
greg |
1.3 |
COLR *scanout; |
147 |
greg |
1.1 |
register int x; |
148 |
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int y; |
149 |
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/* allocate scanline */ |
150 |
greg |
1.3 |
scanout = (COLR *)malloc(xmax*sizeof(COLR)); |
151 |
greg |
1.1 |
if (scanout == NULL) |
152 |
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quiterr("out of memory in pr2ra"); |
153 |
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/* convert image */ |
154 |
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for (y = ymax-1; y >= 0; y--) { |
155 |
greg |
1.9 |
if (rf == RT_FORMAT_RGB) |
156 |
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for (x = 0; x < xmax; x++) { |
157 |
greg |
1.6 |
scanout[x][RED] = getc(stdin); |
158 |
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scanout[x][GRN] = getc(stdin); |
159 |
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scanout[x][BLU] = getc(stdin); |
160 |
greg |
1.9 |
} |
161 |
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else |
162 |
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for (x = 0; x < xmax; x++) { |
163 |
greg |
1.6 |
scanout[x][BLU] = getc(stdin); |
164 |
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scanout[x][GRN] = getc(stdin); |
165 |
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scanout[x][RED] = getc(stdin); |
166 |
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} |
167 |
greg |
2.4 |
for (x = pad; x--; getc(stdin)); |
168 |
greg |
1.3 |
if (feof(stdin) || ferror(stdin)) |
169 |
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quiterr("error reading rasterfile"); |
170 |
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gambs_colrs(scanout, xmax); |
171 |
greg |
1.7 |
if (bradj) |
172 |
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shiftcolrs(scanout, xmax, bradj); |
173 |
greg |
1.3 |
if (fwritecolrs(scanout, xmax, stdout) < 0) |
174 |
greg |
1.1 |
quiterr("error writing Radiance picture"); |
175 |
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} |
176 |
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/* free scanline */ |
177 |
greg |
2.9 |
free((void *)scanout); |
178 |
greg |
1.1 |
} |
179 |
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180 |
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181 |
greg |
2.4 |
ra2pr(rf, pad) /* convert Radiance scanlines to 24-bit rasterfile */ |
182 |
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int rf; |
183 |
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int pad; |
184 |
greg |
1.1 |
{ |
185 |
greg |
2.4 |
int ord[3]; |
186 |
greg |
1.3 |
COLR *scanin; |
187 |
greg |
1.1 |
register int x; |
188 |
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int y; |
189 |
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/* allocate scanline */ |
190 |
greg |
1.3 |
scanin = (COLR *)malloc(xmax*sizeof(COLR)); |
191 |
greg |
1.1 |
if (scanin == NULL) |
192 |
greg |
1.8 |
quiterr("out of memory in ra2pr"); |
193 |
greg |
2.4 |
if (rf == RT_FORMAT_RGB) { |
194 |
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ord[0] = RED; ord[1] = GRN; ord[2] = BLU; |
195 |
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} else { |
196 |
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ord[0] = BLU; ord[1] = GRN; ord[2] = RED; |
197 |
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} |
198 |
greg |
1.1 |
/* convert image */ |
199 |
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for (y = ymax-1; y >= 0; y--) { |
200 |
greg |
1.3 |
if (freadcolrs(scanin, xmax, stdin) < 0) |
201 |
greg |
1.1 |
quiterr("error reading Radiance picture"); |
202 |
greg |
1.7 |
if (bradj) |
203 |
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shiftcolrs(scanin, xmax, bradj); |
204 |
greg |
1.3 |
colrs_gambs(scanin, xmax); |
205 |
greg |
1.9 |
if (rf == RT_FORMAT_RGB) |
206 |
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for (x = 0; x < xmax; x++) { |
207 |
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putc(scanin[x][RED], stdout); |
208 |
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putc(scanin[x][GRN], stdout); |
209 |
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putc(scanin[x][BLU], stdout); |
210 |
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} |
211 |
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else |
212 |
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for (x = 0; x < xmax; x++) { |
213 |
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putc(scanin[x][BLU], stdout); |
214 |
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putc(scanin[x][GRN], stdout); |
215 |
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putc(scanin[x][RED], stdout); |
216 |
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} |
217 |
greg |
2.4 |
for (x = 0; x < pad; x++) |
218 |
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putc(scanin[xmax-1][ord[x%3]], stdout); |
219 |
greg |
1.1 |
if (ferror(stdout)) |
220 |
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quiterr("error writing rasterfile"); |
221 |
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} |
222 |
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/* free scanline */ |
223 |
greg |
2.9 |
free((void *)scanin); |
224 |
greg |
1.1 |
} |