1 |
greg |
1.8 |
/* Copyright (c) 1991 Regents of the University of California */ |
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greg |
1.1 |
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3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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* Combine picture files according to calcomp functions. |
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* |
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* 1/4/89 |
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*/ |
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#include <stdio.h> |
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15 |
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#include <errno.h> |
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#include "color.h" |
18 |
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19 |
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#include "calcomp.h" |
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21 |
greg |
1.6 |
#define MAXINP 32 /* maximum number of input files */ |
22 |
greg |
1.1 |
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23 |
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struct { |
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char *name; /* file name */ |
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FILE *fp; /* stream pointer */ |
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COLOR *scan; /* input scanline */ |
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greg |
1.3 |
COLOR coef; /* coefficient */ |
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greg |
1.1 |
} input[MAXINP]; /* input pictures */ |
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30 |
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int nfiles; /* number of input files */ |
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32 |
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char *vcolin[3] = {"ri", "gi", "bi"}; |
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char *vcolout[3] = {"ro", "go", "bo"}; |
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greg |
1.8 |
#define vbrtin "li" |
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#define vbrtout "lo" |
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greg |
1.1 |
|
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greg |
1.8 |
#define vnfiles "nfiles" |
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#define vxres "xres" |
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#define vyres "yres" |
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greg |
1.1 |
#define vxpos "x" |
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#define vypos "y" |
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int nowarn = 0; /* no warning messages? */ |
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greg |
1.9 |
int original = 0; /* origninal values? */ |
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greg |
1.1 |
int xres=0, yres=0; /* picture resolution */ |
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49 |
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int xpos, ypos; /* picture position */ |
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greg |
1.10 |
int wrongformat = 0; |
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greg |
1.1 |
|
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greg |
1.10 |
|
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greg |
1.1 |
tputs(s) /* put out string preceded by a tab */ |
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char *s; |
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{ |
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greg |
1.10 |
char fmt[32]; |
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greg |
1.9 |
double d; |
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COLOR ctmp; |
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greg |
1.10 |
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if (isformat(s)) { /* check format */ |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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} else if (original && isexpos(s)) { /* exposure */ |
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greg |
1.9 |
d = 1.0/exposval(s); |
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scalecolor(input[nfiles].coef, d); |
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greg |
1.10 |
} else if (original && iscolcor(s)) { /* color correction */ |
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greg |
1.9 |
colcorval(ctmp, s); |
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colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
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colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
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colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
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greg |
1.10 |
} else { /* echo unaffected line */ |
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putchar('\t'); |
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fputs(s, stdout); |
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greg |
1.9 |
} |
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greg |
1.10 |
|
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greg |
1.1 |
} |
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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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greg |
1.8 |
extern double l_redin(), l_grnin(), l_bluin(), l_brtin(), atof(); |
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greg |
1.3 |
double f; |
86 |
greg |
1.1 |
int a; |
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greg |
1.12 |
funset(vcolin[RED], 1, '=', l_redin); |
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funset(vcolin[GRN], 1, '=', l_grnin); |
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funset(vcolin[BLU], 1, '=', l_bluin); |
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funset(vbrtin, 1, '=', l_brtin); |
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greg |
1.1 |
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93 |
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for (a = 1; a < argc; a++) |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case '\0': |
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greg |
1.3 |
case 's': |
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case 'c': |
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greg |
1.1 |
goto getfiles; |
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case 'x': |
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xres = atoi(argv[++a]); |
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break; |
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case 'y': |
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yres = atoi(argv[++a]); |
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break; |
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case 'w': |
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nowarn = !nowarn; |
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break; |
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greg |
1.9 |
case 'o': |
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original = !original; |
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break; |
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greg |
1.1 |
case 'f': |
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fcompile(argv[++a]); |
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break; |
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case 'e': |
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greg |
1.7 |
scompile(argv[++a], NULL, 0); |
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greg |
1.1 |
break; |
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default: |
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greg |
1.3 |
goto usage; |
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greg |
1.1 |
} |
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else |
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break; |
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getfiles: |
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greg |
1.3 |
for (nfiles = 0; nfiles < MAXINP; nfiles++) |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
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greg |
1.1 |
nfiles = 0; |
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for ( ; a < argc; a++) { |
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if (nfiles >= MAXINP) { |
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eputs(argv[0]); |
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eputs(": too many picture files\n"); |
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quit(1); |
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} |
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greg |
1.3 |
if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case '\0': |
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input[nfiles].name = "<stdin>"; |
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input[nfiles].fp = stdin; |
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break; |
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case 's': |
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f = atof(argv[++a]); |
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scalecolor(input[nfiles].coef, f); |
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continue; |
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case 'c': |
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colval(input[nfiles].coef,RED)*=atof(argv[++a]); |
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colval(input[nfiles].coef,GRN)*=atof(argv[++a]); |
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colval(input[nfiles].coef,BLU)*=atof(argv[++a]); |
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continue; |
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default: |
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goto usage; |
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} |
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else { |
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greg |
1.1 |
input[nfiles].name = argv[a]; |
153 |
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input[nfiles].fp = fopen(argv[a], "r"); |
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if (input[nfiles].fp == NULL) { |
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greg |
1.6 |
perror(argv[a]); |
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greg |
1.1 |
quit(1); |
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} |
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} |
159 |
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fputs(input[nfiles].name, stdout); |
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fputs(":\n", stdout); |
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greg |
1.10 |
getheader(input[nfiles].fp, tputs, NULL); |
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if (wrongformat) { |
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eputs(input[nfiles].name); |
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eputs(": not in Radiance picture format\n"); |
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quit(1); |
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} |
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greg |
1.5 |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != |
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(YMAJOR|YDECR)) { |
169 |
greg |
1.1 |
eputs(input[nfiles].name); |
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eputs(": bad picture size\n"); |
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quit(1); |
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} |
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if (xres == 0 && yres == 0) { |
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xres = xpos; |
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yres = ypos; |
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} else if (xpos != xres || ypos != yres) { |
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eputs(argv[0]); |
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eputs(": resolution mismatch\n"); |
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quit(1); |
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} |
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input[nfiles].scan = (COLOR *)emalloc(xres*sizeof(COLOR)); |
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nfiles++; |
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} |
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printargs(argc, argv, stdout); |
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greg |
1.10 |
fputformat(COLRFMT, stdout); |
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greg |
1.1 |
putchar('\n'); |
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greg |
1.5 |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
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greg |
1.1 |
combine(); |
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quit(0); |
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greg |
1.3 |
usage: |
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eputs("Usage: "); |
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eputs(argv[0]); |
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greg |
1.9 |
eputs( |
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" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
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greg |
1.3 |
quit(1); |
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greg |
1.1 |
} |
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combine() /* combine pictures */ |
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{ |
201 |
greg |
1.8 |
EPNODE *coldef[3], *brtdef; |
202 |
greg |
1.1 |
COLOR *scanout; |
203 |
greg |
1.8 |
double d; |
204 |
greg |
1.1 |
register int i, j; |
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/* check defined variables */ |
206 |
greg |
1.4 |
for (j = 0; j < 3; j++) { |
207 |
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if (vardefined(vcolout[j])) |
208 |
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coldef[j] = eparse(vcolout[j]); |
209 |
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else |
210 |
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coldef[j] = NULL; |
211 |
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} |
212 |
greg |
1.8 |
if (vardefined(vbrtout)) |
213 |
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brtdef = eparse(vbrtout); |
214 |
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else |
215 |
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brtdef = NULL; |
216 |
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/* predefine variables */ |
217 |
greg |
1.11 |
varset(vnfiles, '=', (double)nfiles); |
218 |
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varset(vxres, '=', (double)xres); |
219 |
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varset(vyres, '=', (double)yres); |
220 |
greg |
1.1 |
/* allocate scanline */ |
221 |
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scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
222 |
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/* combine files */ |
223 |
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for (ypos = yres-1; ypos >= 0; ypos--) { |
224 |
greg |
1.8 |
for (i = 0; i < nfiles; i++) |
225 |
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if (freadscan(input[i].scan, xres, input[i].fp) < 0) { |
226 |
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eputs(input[i].name); |
227 |
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eputs(": read error\n"); |
228 |
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quit(1); |
229 |
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} |
230 |
greg |
1.11 |
varset(vypos, '=', (double)ypos); |
231 |
greg |
1.8 |
for (xpos = 0; xpos < xres; xpos++) { |
232 |
greg |
1.9 |
for (i = 0; i < nfiles; i++) |
233 |
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multcolor(input[i].scan[xpos],input[i].coef); |
234 |
greg |
1.11 |
varset(vxpos, '=', (double)xpos); |
235 |
greg |
1.8 |
eclock++; |
236 |
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if (brtdef != NULL) { |
237 |
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d = evalue(brtdef); |
238 |
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if (d < 0.0) |
239 |
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d = 0.0; |
240 |
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setcolor(scanout[xpos], d, d, d); |
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} else { |
242 |
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for (j = 0; j < 3; j++) { |
243 |
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if (coldef[j] != NULL) { |
244 |
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colval(scanout[xpos],j) = evalue(coldef[j]); |
245 |
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} else { |
246 |
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colval(scanout[xpos],j) = 0.0; |
247 |
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for (i = 0; i < nfiles; i++) |
248 |
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colval(scanout[xpos],j) += |
249 |
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colval(input[i].scan[xpos],j); |
250 |
greg |
1.1 |
} |
251 |
greg |
1.8 |
if (colval(scanout[xpos],j) < 0.0) |
252 |
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colval(scanout[xpos],j) = 0.0; |
253 |
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} |
254 |
greg |
1.1 |
} |
255 |
greg |
1.8 |
} |
256 |
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if (fwritescan(scanout, xres, stdout) < 0) { |
257 |
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perror("write error"); |
258 |
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quit(1); |
259 |
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} |
260 |
greg |
1.1 |
} |
261 |
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efree(scanout); |
262 |
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} |
263 |
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264 |
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265 |
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double |
266 |
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colin(fn, ci) /* return color value for picture */ |
267 |
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register int fn, ci; |
268 |
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{ |
269 |
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if (fn == 0) |
270 |
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return((double)nfiles); |
271 |
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if (fn < 1 || fn > nfiles) { |
272 |
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errno = EDOM; |
273 |
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return(0.0); |
274 |
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} |
275 |
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return(colval(input[fn-1].scan[xpos],ci)); |
276 |
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} |
277 |
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278 |
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279 |
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double |
280 |
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l_redin() /* get red color */ |
281 |
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{ |
282 |
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return(colin((int)(argument(1)+.5), RED)); |
283 |
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} |
284 |
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285 |
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286 |
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double |
287 |
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l_grnin() /* get green color */ |
288 |
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{ |
289 |
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return(colin((int)(argument(1)+.5), GRN)); |
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} |
291 |
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292 |
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293 |
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double |
294 |
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l_bluin() /* get blue color */ |
295 |
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{ |
296 |
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return(colin((int)(argument(1)+.5), BLU)); |
297 |
greg |
1.8 |
} |
298 |
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299 |
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300 |
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double |
301 |
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l_brtin() /* get brightness value */ |
302 |
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{ |
303 |
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register int fn; |
304 |
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305 |
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fn = argument(1)+.5; |
306 |
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if (fn == 0) |
307 |
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return((double)nfiles); |
308 |
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if (fn < 1 || fn > nfiles) { |
309 |
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errno = EDOM; |
310 |
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return(0.0); |
311 |
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} |
312 |
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return(bright(input[fn-1].scan[xpos])); |
313 |
greg |
1.1 |
} |
314 |
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315 |
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316 |
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wputs(msg) |
317 |
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char *msg; |
318 |
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{ |
319 |
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if (!nowarn) |
320 |
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eputs(msg); |
321 |
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} |
322 |
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323 |
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324 |
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eputs(msg) |
325 |
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char *msg; |
326 |
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{ |
327 |
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fputs(msg, stderr); |
328 |
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} |
329 |
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330 |
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331 |
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quit(code) |
332 |
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int code; |
333 |
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{ |
334 |
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exit(code); |
335 |
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} |