src/px/pvalue.c

/* Copyright (c) 1992 Regents of the University of California */

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif

/*
 *  pvalue.c - program to print pixel values.
 *
 *     4/23/86
 */

#include  "standard.h"

#include  "color.h"

#include  "resolu.h"

#define  min(a,b)               ((a)<(b)?(a):(b))

RESOLU  picres;                 /* resolution of picture */

int  uniq = 0;                  /* print only unique values? */

int  original = 0;              /* convert back to original values? */

int  dataonly = 0;              /* data only format? */

int  brightonly = 0;            /* only brightness values? */

int  reverse = 0;               /* reverse conversion? */

int  format = 'a';              /* input/output format */
char  *fmtid = "ascii";         /* format identifier for header */

int  header = 1;                /* do header? */

int  resolution = 1;            /* put/get resolution string? */

int  wrongformat = 0;           /* wrong input format? */

double  gamcor = 1.0;           /* gamma correction */

int  ord[3] = {RED, GRN, BLU};  /* RGB ordering */
int  rord[4];                   /* reverse ordering */

COLOR  exposure = WHTCOLOR;

char  *progname;

FILE  *fin;

int  (*getval)(), (*putval)();


main(argc, argv)
int  argc;
char  **argv;
{
        extern int  checkhead();
        int  i;

        progname = argv[0];

        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-' || argv[i][0] == '+')
                        switch (argv[i][1]) {
                        case 'h':               /* header */
                                header = argv[i][0] == '+';
                                break;
                        case 'H':               /* resolution string */
                                resolution = argv[i][0] == '+';
                                break;
                        case 'u':               /* unique values */
                                uniq = argv[i][0] == '-';
                                break;
                        case 'o':               /* original values */
                                original = argv[i][0] == '-';
                                break;
                        case 'g':               /* gamma correction */
                                gamcor = atof(argv[++i]);
                                if (argv[i][0] == '+')
                                        gamcor = 1.0/gamcor;
                                break;
                        case 'R':               /* reverse byte sequence */
                                if (argv[i][0] == '-') {
                                        ord[0]=BLU; ord[1]=GRN; ord[2]=RED;
                                } else {
                                        ord[0]=RED; ord[1]=GRN; ord[2]=BLU;
                                }
                                break;
                        case 'r':               /* reverse conversion */
                                reverse = argv[i][0] == '-';
                                break;
                        case 'b':               /* brightness values */
                                brightonly = argv[i][0] == '-';
                                break;
                        case 'd':               /* data only (no indices) */
                                dataonly = argv[i][0] == '-';
                                switch (argv[i][2]) {
                                case '\0':
                                case 'a':               /* ascii */
                                        format = 'a';
                                        fmtid = "ascii";
                                        break;
                                case 'i':               /* integer */
                                        format = 'i';
                                        fmtid = "ascii";
                                        break;
                                case 'b':               /* byte */
                                        dataonly = 1;
                                        format = 'b';
                                        fmtid = "byte";
                                        break;
                                case 'f':               /* float */
                                        dataonly = 1;
                                        format = 'f';
                                        fmtid = "float";
                                        break;
                                case 'd':               /* double */
                                        dataonly = 1;
                                        format = 'd';
                                        fmtid = "double";
                                        break;
                                default:
                                        goto unkopt;
                                }
                                break;
                        case 'x':               /* x resolution */
                                resolution = 0;
                                if (argv[i][0] == '-')
                                        picres.or |= XDECR;
                                picres.xr = atoi(argv[++i]);
                                break;
                        case 'y':               /* y resolution */
                                resolution = 0;
                                if (argv[i][0] == '-')
                                        picres.or |= YDECR;
                                if (picres.xr == 0)
                                        picres.or |= YMAJOR;
                                picres.yr = atoi(argv[++i]);
                                break;
                        default:
unkopt:
                                fprintf(stderr, "%s: unknown option: %s\n",
                                                progname, argv[i]);
                                quit(1);
                                break;
                        }
                else
                        break;
                                        /* recognize special formats */
        if (dataonly && format == 'b')
                if (brightonly)
                        fmtid = "8-bit_grey";
                else
                        fmtid = "24-bit_rgb";
                                        /* assign reverse ordering */
        rord[ord[0]] = 0;
        rord[ord[1]] = 1;
        rord[ord[2]] = 2;
                                        /* get input */
        if (i == argc) {
                fin = stdin;
        } else if (i == argc-1) {
                if ((fin = fopen(argv[i], "r")) == NULL) {
                        fprintf(stderr, "%s: can't open file \"%s\"\n",
                                                progname, argv[i]);
                        quit(1);
                }
        } else {
                fprintf(stderr, "%s: bad # file arguments\n", progname);
                quit(1);
        }

        set_io();

        if (reverse) {
#ifdef MSDOS
                setmode(fileno(stdout), O_BINARY);
                if (format != 'a' && format != 'i')
                        setmode(fileno(fin), O_BINARY);
#endif
                                        /* get header */
                if (header && checkheader(fin, fmtid, stdout) < 0) {
                        fprintf(stderr, "%s: wrong input format\n", progname);
                        quit(1);
                }
                                        /* get resolution */
                if ((resolution && !fgetsresolu(&picres, fin)) ||
                                picres.xr <= 0 || picres.yr <= 0) {
                        fprintf(stderr, "%s: missing resolution\n", progname);
                        quit(1);
                }
                                                /* add to header */
                printargs(i, argv, stdout);
                fputformat(COLRFMT, stdout);
                putchar('\n');
                fputsresolu(&picres, stdout);   /* always put resolution */
                valtopix();
        } else {
#ifdef MSDOS
                setmode(fileno(fin), O_BINARY);
                if (format != 'a' && format != 'i')
                        setmode(fileno(stdout), O_BINARY);
#endif
                                                /* get header */
                getheader(fin, checkhead, NULL);
                if (wrongformat) {
                        fprintf(stderr, "%s: input not a Radiance picture\n",
                                        progname);
                        quit(1);
                }
                if (!fgetsresolu(&picres, fin)) {
                        fprintf(stderr, "%s: missing resolution\n", progname);
                        quit(1);
                }
                if (header) {
                        printargs(i, argv, stdout);
                        fputformat(fmtid, stdout);
                        putchar('\n');
                }
                if (resolution)                 /* put resolution */
                        fputsresolu(&picres, stdout);
                pixtoval();
        }

        quit(0);
}


checkhead(line)                         /* deal with line from header */
char  *line;
{
        char    fmt[32];
        double  d;
        COLOR   ctmp;

        if (isformat(line)) {
                formatval(fmt, line);
                wrongformat = strcmp(fmt, COLRFMT);
        } else if (original && isexpos(line)) {
                d = 1.0/exposval(line);
                scalecolor(exposure, d);
        } else if (original && iscolcor(line)) {
                colcorval(ctmp, line);
                setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED),
                                colval(exposure,GRN)/colval(ctmp,GRN),
                                colval(exposure,BLU)/colval(ctmp,BLU));
        } else if (header)
                fputs(line, stdout);
}


pixtoval()                              /* convert picture to values */
{
        register COLOR  *scanln;
        int  dogamma;
        COLOR  lastc;
        FLOAT  hv[2];
        int  y;
        register int  x;

        scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR));
        if (scanln == NULL) {
                fprintf(stderr, "%s: out of memory\n", progname);
                quit(1);
        }
        dogamma = gamcor < .95 || gamcor > 1.05;
        setcolor(lastc, 0.0, 0.0, 0.0);
        for (y = 0; y < numscans(&picres); y++) {
                if (freadscan(scanln, scanlen(&picres), fin) < 0) {
                        fprintf(stderr, "%s: read error\n", progname);
                        quit(1);
                }
                for (x = 0; x < scanlen(&picres); x++) {
                        if (uniq)
                                if (    colval(scanln[x],RED) ==
                                                colval(lastc,RED) &&
                                        colval(scanln[x],GRN) ==
                                                colval(lastc,GRN) &&
                                        colval(scanln[x],BLU) ==
                                                colval(lastc,BLU)       )
                                        continue;
                                else
                                        copycolor(lastc, scanln[x]);
                        if (original)
                                multcolor(scanln[x], exposure);
                        if (dogamma)
                                setcolor(scanln[x],
                                pow(colval(scanln[x],RED), 1.0/gamcor),
                                pow(colval(scanln[x],GRN), 1.0/gamcor),
                                pow(colval(scanln[x],BLU), 1.0/gamcor));
                        if (!dataonly) {
                                pix2loc(hv, &picres, x, y);
                                printf("%7d %7d ", (int)(hv[0]*picres.xr),
                                                (int)(hv[1]*picres.yr));
                        }
                        if ((*putval)(scanln[x], stdout) < 0) {
                                fprintf(stderr, "%s: write error\n", progname);
                                quit(1);
                        }
                }
        }
        free((char *)scanln);
}


valtopix()                      /* convert values to a pixel file */
{
        int  dogamma;
        register COLOR  *scanln;
        int  y;
        register int  x;

        scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR));
        if (scanln == NULL) {
                fprintf(stderr, "%s: out of memory\n", progname);
                quit(1);
        }
        dogamma = gamcor < .95 || gamcor > 1.05;
        for (y = 0; y < numscans(&picres); y++) {
                for (x = 0; x < scanlen(&picres); x++) {
                        if (!dataonly)
                                fscanf(fin, "%*d %*d");
                        if ((*getval)(scanln[x], fin) < 0) {
                                fprintf(stderr, "%s: read error\n", progname);
                                quit(1);
                        }
                        if (dogamma)
                                setcolor(scanln[x],
                                        pow(colval(scanln[x],RED), gamcor),
                                        pow(colval(scanln[x],GRN), gamcor),
                                        pow(colval(scanln[x],BLU), gamcor));
                }
                if (fwritescan(scanln, scanlen(&picres), stdout) < 0) {
                        fprintf(stderr, "%s: write error\n", progname);
                        quit(1);
                }
        }
        free((char *)scanln);
}


quit(code)
int  code;
{
        exit(code);
}


getcascii(col, fp)              /* get an ascii color value from fp */
COLOR  col;
FILE  *fp;
{
        double  vd[3];

        if (fscanf(fp, "%lf %lf %lf", &vd[0], &vd[1], &vd[2]) != 3)
                return(-1);
        setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]);
        return(0);
}


getcdouble(col, fp)             /* get a double color value from fp */
COLOR  col;
FILE  *fp;
{
        double  vd[3];

        if (fread((char *)vd, sizeof(double), 3, fp) != 3)
                return(-1);
        setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]);
        return(0);
}


getcfloat(col, fp)              /* get a float color value from fp */
COLOR  col;
FILE  *fp;
{
        float  vf[3];

        if (fread((char *)vf, sizeof(float), 3, fp) != 3)
                return(-1);
        setcolor(col, vf[rord[RED]], vf[rord[GRN]], vf[rord[BLU]]);
        return(0);
}


getcint(col, fp)                /* get an int color value from fp */
COLOR  col;
FILE  *fp;
{
        int  vi[3];

        if (fscanf(fp, "%d %d %d", &vi[0], &vi[1], &vi[2]) != 3)
                return(-1);
        setcolor(col, (vi[rord[RED]]+.5)/256.,
                        (vi[rord[GRN]]+.5)/256., (vi[rord[BLU]]+.5)/256.);
        return(0);
}


getcbyte(col, fp)               /* get a byte color value from fp */
COLOR  col;
FILE  *fp;
{
        BYTE  vb[3];

        if (fread((char *)vb, sizeof(BYTE), 3, fp) != 3)
                return(-1);
        setcolor(col, (vb[rord[RED]]+.5)/256.,
                        (vb[rord[GRN]]+.5)/256., (vb[rord[BLU]]+.5)/256.);
        return(0);
}


getbascii(col, fp)              /* get an ascii brightness value from fp */
COLOR  col;
FILE  *fp;
{
        double  vd;

        if (fscanf(fp, "%lf", &vd) != 1)
                return(-1);
        setcolor(col, vd, vd, vd);
        return(0);
}


getbdouble(col, fp)             /* get a double brightness value from fp */
COLOR  col;
FILE  *fp;
{
        double  vd;

        if (fread((char *)&vd, sizeof(double), 1, fp) != 1)
                return(-1);
        setcolor(col, vd, vd, vd);
        return(0);
}


getbfloat(col, fp)              /* get a float brightness value from fp */
COLOR  col;
FILE  *fp;
{
        float  vf;

        if (fread((char *)&vf, sizeof(float), 1, fp) != 1)
                return(-1);
        setcolor(col, vf, vf, vf);
        return(0);
}


getbint(col, fp)                /* get an int brightness value from fp */
COLOR  col;
FILE  *fp;
{
        int  vi;
        double  d;

        if (fscanf(fp, "%d", &vi) != 1)
                return(-1);
        d = (vi+.5)/256.;
        setcolor(col, d, d, d);
        return(0);
}


getbbyte(col, fp)               /* get a byte brightness value from fp */
COLOR  col;
FILE  *fp;
{
        BYTE  vb;
        double  d;

        if (fread((char *)&vb, sizeof(BYTE), 1, fp) != 1)
                return(-1);
        d = (vb+.5)/256.;
        setcolor(col, d, d, d);
        return(0);
}


putcascii(col, fp)                      /* put an ascii color to fp */
COLOR  col;
FILE  *fp;
{
        fprintf(fp, "%15.3e %15.3e %15.3e\n",
                        colval(col,ord[0]),
                        colval(col,ord[1]),
                        colval(col,ord[2]));

        return(ferror(fp) ? -1 : 0);
}


putcfloat(col, fp)                      /* put a float color to fp */
COLOR  col;
FILE  *fp;
{
        float  vf[3];

        vf[0] = colval(col,ord[0]);
        vf[1] = colval(col,ord[1]);
        vf[2] = colval(col,ord[2]);
        fwrite((char *)vf, sizeof(float), 3, fp);

        return(ferror(fp) ? -1 : 0);
}


putcdouble(col, fp)                     /* put a double color to fp */
COLOR  col;
FILE  *fp;
{
        double  vd[3];

        vd[0] = colval(col,ord[0]);
        vd[1] = colval(col,ord[1]);
        vd[2] = colval(col,ord[2]);
        fwrite((char *)vd, sizeof(double), 3, fp);

        return(ferror(fp) ? -1 : 0);
}


putcint(col, fp)                        /* put an int color to fp */
COLOR  col;
FILE  *fp;
{
        fprintf(fp, "%d %d %d\n",
                        (int)(colval(col,ord[0])*256.),
                        (int)(colval(col,ord[1])*256.),
                        (int)(colval(col,ord[2])*256.));

        return(ferror(fp) ? -1 : 0);
}


putcbyte(col, fp)                       /* put a byte color to fp */
COLOR  col;
FILE  *fp;
{
        register int  i;
        BYTE  vb[3];

        i = colval(col,ord[0])*256.;
        vb[0] = min(i,255);
        i = colval(col,ord[1])*256.;
        vb[1] = min(i,255);
        i = colval(col,ord[2])*256.;
        vb[2] = min(i,255);
        fwrite((char *)vb, sizeof(BYTE), 3, fp);

        return(ferror(fp) ? -1 : 0);
}


putbascii(col, fp)                      /* put an ascii brightness to fp */
COLOR  col;
FILE  *fp;
{
        fprintf(fp, "%15.3e\n", bright(col));

        return(ferror(fp) ? -1 : 0);
}


putbfloat(col, fp)                      /* put a float brightness to fp */
COLOR  col;
FILE  *fp;
{
        float  vf;

        vf = bright(col);
        fwrite((char *)&vf, sizeof(float), 1, fp);

        return(ferror(fp) ? -1 : 0);
}


putbdouble(col, fp)                     /* put a double brightness to fp */
COLOR  col;
FILE  *fp;
{
        double  vd;

        vd = bright(col);
        fwrite((char *)&vd, sizeof(double), 1, fp);

        return(ferror(fp) ? -1 : 0);
}


putbint(col, fp)                        /* put an int brightness to fp */
COLOR  col;
FILE  *fp;
{
        fprintf(fp, "%d\n", (int)(bright(col)*256.));

        return(ferror(fp) ? -1 : 0);
}


putbbyte(col, fp)                       /* put a byte brightness to fp */
COLOR  col;
FILE  *fp;
{
        register int  i;
        BYTE  vb;

        i = bright(col)*256.;
        vb = min(i,255);
        fwrite((char *)&vb, sizeof(BYTE), 1, fp);

        return(ferror(fp) ? -1 : 0);
}


set_io()                        /* set put and get functions */
{
        switch (format) {
        case 'a':                                       /* ascii */
                if (brightonly) {
                        getval = getbascii;
                        putval = putbascii;
                } else {
                        getval = getcascii;
                        putval = putcascii;
                }
                return;
        case 'f':                                       /* binary float */
                if (brightonly) {
                        getval = getbfloat;
                        putval = putbfloat;
                } else {
                        getval = getcfloat;
                        putval = putcfloat;
                }
                return;
        case 'd':                                       /* binary double */
                if (brightonly) {
                        getval = getbdouble;
                        putval = putbdouble;
                } else {
                        getval = getcdouble;
                        putval = putcdouble;
                }
                return;
        case 'i':                                       /* integer */
                if (brightonly) {
                        getval = getbint;
                        putval = putbint;
                } else {
                        getval = getcint;
                        putval = putcint;
                }
                return;
        case 'b':                                       /* byte */
                if (brightonly) {
                        getval = getbbyte;
                        putval = putbbyte;
                } else {
                        getval = getcbyte;
                        putval = putcbyte;
                }
                return;
        }
}
Revision:	2.5
Committed:	Mon Sep 21 12:14:37 1992 UTC (33 years, 1 month ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.4:	+24 -14 lines
Log Message:	Changes for PC port
#	User	Rev	Content
1	greg	2.5	/* Copyright (c) 1992 Regents of the University of California */
2	greg	1.1
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* pvalue.c - program to print pixel values.
9			*
10			* 4/23/86
11			*/
12
13	greg	1.8	#include "standard.h"
14	greg	1.1
15			#include "color.h"
16
17	greg	1.8	#include "resolu.h"
18
19	greg	2.5	#define min(a,b) ((a)<(b)?(a):(b))
20	greg	1.1
21	greg	2.5	RESOLU picres; /* resolution of picture */
22	greg	1.1
23	greg	1.6	int uniq = 0; /* print only unique values? */
24	greg	1.1
25	greg	1.6	int original = 0; /* convert back to original values? */
26	greg	1.1
27			int dataonly = 0; /* data only format? */
28
29			int brightonly = 0; /* only brightness values? */
30
31			int reverse = 0; /* reverse conversion? */
32
33			int format = 'a'; /* input/output format */
34	greg	1.6	char fmtid = "ascii"; / format identifier for header */
35	greg	1.1
36	greg	2.3	int header = 1; /* do header? */
37	greg	1.1
38	greg	2.3	int resolution = 1; /* put/get resolution string? */
39
40	greg	1.6	int wrongformat = 0; /* wrong input format? */
41
42	greg	2.5	double gamcor = 1.0; /* gamma correction */
43	greg	1.7
44	greg	2.4	int ord[3] = {RED, GRN, BLU}; /* RGB ordering */
45			int rord[4]; /* reverse ordering */
46
47	greg	1.5	COLOR exposure = WHTCOLOR;
48	greg	1.1
49			char *progname;
50
51			FILE *fin;
52
53			int (getval)(), (putval)();
54
55
56			main(argc, argv)
57			int argc;
58			char **argv;
59			{
60			extern int checkhead();
61			int i;
62
63			progname = argv[0];
64
65			for (i = 1; i < argc; i++)
66	greg	1.8	if (argv[i][0] == '-' \|\| argv[i][0] == '+')
67	greg	1.1	switch (argv[i][1]) {
68	greg	1.8	case 'h': /* header */
69			header = argv[i][0] == '+';
70	greg	1.1	break;
71	greg	2.3	case 'H': /* resolution string */
72			resolution = argv[i][0] == '+';
73			break;
74	greg	1.1	case 'u': /* unique values */
75	greg	1.8	uniq = argv[i][0] == '-';
76	greg	1.1	break;
77			case 'o': /* original values */
78	greg	1.8	original = argv[i][0] == '-';
79	greg	1.1	break;
80	greg	1.7	case 'g': /* gamma correction */
81	greg	1.8	gamcor = atof(argv[++i]);
82			if (argv[i][0] == '+')
83			gamcor = 1.0/gamcor;
84	greg	1.7	break;
85	greg	2.4	case 'R': /* reverse byte sequence */
86			if (argv[i][0] == '-') {
87			ord[0]=BLU; ord[1]=GRN; ord[2]=RED;
88			} else {
89			ord[0]=RED; ord[1]=GRN; ord[2]=BLU;
90			}
91			break;
92	greg	1.1	case 'r': /* reverse conversion */
93	greg	1.8	reverse = argv[i][0] == '-';
94	greg	1.1	break;
95			case 'b': /* brightness values */
96	greg	1.8	brightonly = argv[i][0] == '-';
97	greg	1.1	break;
98			case 'd': /* data only (no indices) */
99	greg	1.8	dataonly = argv[i][0] == '-';
100	greg	1.1	switch (argv[i][2]) {
101			case '\0':
102			case 'a': /* ascii */
103			format = 'a';
104	greg	1.6	fmtid = "ascii";
105	greg	1.1	break;
106			case 'i': /* integer */
107	greg	1.6	format = 'i';
108			fmtid = "ascii";
109			break;
110	greg	1.1	case 'b': /* byte */
111	greg	1.8	dataonly = 1;
112	greg	1.6	format = 'b';
113			fmtid = "byte";
114			break;
115	greg	1.1	case 'f': /* float */
116	greg	1.8	dataonly = 1;
117	greg	1.6	format = 'f';
118			fmtid = "float";
119			break;
120	greg	1.1	case 'd': /* double */
121	greg	1.8	dataonly = 1;
122	greg	1.6	format = 'd';
123			fmtid = "double";
124	greg	1.1	break;
125			default:
126			goto unkopt;
127			}
128			break;
129			case 'x': /* x resolution */
130	greg	2.3	resolution = 0;
131	greg	1.8	if (argv[i][0] == '-')
132			picres.or \|= XDECR;
133			picres.xr = atoi(argv[++i]);
134	greg	1.1	break;
135			case 'y': /* y resolution */
136	greg	2.3	resolution = 0;
137	greg	1.8	if (argv[i][0] == '-')
138			picres.or \|= YDECR;
139			if (picres.xr == 0)
140			picres.or \|= YMAJOR;
141			picres.yr = atoi(argv[++i]);
142	greg	1.1	break;
143			default:
144			unkopt:
145			fprintf(stderr, "%s: unknown option: %s\n",
146			progname, argv[i]);
147			quit(1);
148			break;
149			}
150			else
151			break;
152	greg	1.6	/* recognize special formats */
153			if (dataonly && format == 'b')
154			if (brightonly)
155			fmtid = "8-bit_grey";
156			else
157			fmtid = "24-bit_rgb";
158	greg	2.4	/* assign reverse ordering */
159			rord[ord[0]] = 0;
160			rord[ord[1]] = 1;
161			rord[ord[2]] = 2;
162			/* get input */
163	greg	1.1	if (i == argc) {
164			fin = stdin;
165			} else if (i == argc-1) {
166			if ((fin = fopen(argv[i], "r")) == NULL) {
167			fprintf(stderr, "%s: can't open file \"%s\"\n",
168			progname, argv[i]);
169			quit(1);
170			}
171			} else {
172			fprintf(stderr, "%s: bad # file arguments\n", progname);
173			quit(1);
174			}
175
176			set_io();
177
178			if (reverse) {
179	greg	2.5	#ifdef MSDOS
180			setmode(fileno(stdout), O_BINARY);
181			if (format != 'a' && format != 'i')
182			setmode(fileno(fin), O_BINARY);
183			#endif
184	greg	1.6	/* get header */
185			if (header && checkheader(fin, fmtid, stdout) < 0) {
186			fprintf(stderr, "%s: wrong input format\n", progname);
187			quit(1);
188			}
189	greg	2.3	/* get resolution */
190			if ((resolution && !fgetsresolu(&picres, fin)) \|\|
191			picres.xr <= 0 \|\| picres.yr <= 0) {
192			fprintf(stderr, "%s: missing resolution\n", progname);
193			quit(1);
194			}
195	greg	1.6	/* add to header */
196			printargs(i, argv, stdout);
197			fputformat(COLRFMT, stdout);
198	greg	1.8	putchar('\n');
199	greg	2.3	fputsresolu(&picres, stdout); /* always put resolution */
200	greg	1.1	valtopix();
201			} else {
202	greg	2.5	#ifdef MSDOS
203			setmode(fileno(fin), O_BINARY);
204			if (format != 'a' && format != 'i')
205			setmode(fileno(stdout), O_BINARY);
206			#endif
207	greg	1.1	/* get header */
208	greg	1.6	getheader(fin, checkhead, NULL);
209			if (wrongformat) {
210			fprintf(stderr, "%s: input not a Radiance picture\n",
211			progname);
212			quit(1);
213			}
214	greg	2.3	if (!fgetsresolu(&picres, fin)) {
215			fprintf(stderr, "%s: missing resolution\n", progname);
216			quit(1);
217			}
218	greg	1.1	if (header) {
219			printargs(i, argv, stdout);
220	greg	1.6	fputformat(fmtid, stdout);
221	greg	1.8	putchar('\n');
222	greg	1.1	}
223	greg	2.3	if (resolution) /* put resolution */
224			fputsresolu(&picres, stdout);
225	greg	1.1	pixtoval();
226			}
227
228			quit(0);
229			}
230
231
232			checkhead(line) /* deal with line from header */
233			char *line;
234			{
235	greg	1.6	char fmt[32];
236	greg	1.5	double d;
237			COLOR ctmp;
238
239	greg	1.6	if (isformat(line)) {
240			formatval(fmt, line);
241			wrongformat = strcmp(fmt, COLRFMT);
242			} else if (original && isexpos(line)) {
243	greg	1.5	d = 1.0/exposval(line);
244			scalecolor(exposure, d);
245	greg	1.6	} else if (original && iscolcor(line)) {
246	greg	1.5	colcorval(ctmp, line);
247	greg	1.7	setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED),
248			colval(exposure,GRN)/colval(ctmp,GRN),
249			colval(exposure,BLU)/colval(ctmp,BLU));
250	greg	1.6	} else if (header)
251			fputs(line, stdout);
252	greg	1.1	}
253
254
255			pixtoval() /* convert picture to values */
256			{
257	greg	2.5	register COLOR *scanln;
258	greg	1.7	int dogamma;
259	greg	1.1	COLOR lastc;
260	greg	1.8	FLOAT hv[2];
261	greg	1.1	int y;
262			register int x;
263
264	greg	1.8	scanln = (COLOR )malloc(scanlen(&picres)sizeof(COLOR));
265	greg	1.1	if (scanln == NULL) {
266			fprintf(stderr, "%s: out of memory\n", progname);
267			quit(1);
268			}
269	greg	1.8	dogamma = gamcor < .95 \|\| gamcor > 1.05;
270	greg	1.1	setcolor(lastc, 0.0, 0.0, 0.0);
271	greg	1.8	for (y = 0; y < numscans(&picres); y++) {
272			if (freadscan(scanln, scanlen(&picres), fin) < 0) {
273	greg	1.1	fprintf(stderr, "%s: read error\n", progname);
274			quit(1);
275			}
276	greg	1.8	for (x = 0; x < scanlen(&picres); x++) {
277	greg	1.1	if (uniq)
278	greg	1.7	if ( colval(scanln[x],RED) ==
279			colval(lastc,RED) &&
280			colval(scanln[x],GRN) ==
281			colval(lastc,GRN) &&
282			colval(scanln[x],BLU) ==
283			colval(lastc,BLU) )
284	greg	1.1	continue;
285			else
286			copycolor(lastc, scanln[x]);
287			if (original)
288	greg	1.5	multcolor(scanln[x], exposure);
289	greg	1.7	if (dogamma)
290			setcolor(scanln[x],
291	greg	1.8	pow(colval(scanln[x],RED), 1.0/gamcor),
292			pow(colval(scanln[x],GRN), 1.0/gamcor),
293			pow(colval(scanln[x],BLU), 1.0/gamcor));
294			if (!dataonly) {
295			pix2loc(hv, &picres, x, y);
296			printf("%7d %7d ", (int)(hv[0]*picres.xr),
297			(int)(hv[1]*picres.yr));
298			}
299	greg	1.1	if ((*putval)(scanln[x], stdout) < 0) {
300			fprintf(stderr, "%s: write error\n", progname);
301			quit(1);
302			}
303			}
304			}
305			free((char *)scanln);
306			}
307
308
309			valtopix() /* convert values to a pixel file */
310			{
311	greg	1.7	int dogamma;
312	greg	2.5	register COLOR *scanln;
313	greg	1.1	int y;
314			register int x;
315
316	greg	1.8	scanln = (COLOR )malloc(scanlen(&picres)sizeof(COLOR));
317	greg	1.1	if (scanln == NULL) {
318			fprintf(stderr, "%s: out of memory\n", progname);
319			quit(1);
320			}
321	greg	1.8	dogamma = gamcor < .95 \|\| gamcor > 1.05;
322			for (y = 0; y < numscans(&picres); y++) {
323			for (x = 0; x < scanlen(&picres); x++) {
324	greg	1.1	if (!dataonly)
325			fscanf(fin, "%d %d");
326			if ((*getval)(scanln[x], fin) < 0) {
327			fprintf(stderr, "%s: read error\n", progname);
328			quit(1);
329			}
330	greg	1.7	if (dogamma)
331			setcolor(scanln[x],
332	greg	1.8	pow(colval(scanln[x],RED), gamcor),
333			pow(colval(scanln[x],GRN), gamcor),
334			pow(colval(scanln[x],BLU), gamcor));
335	greg	1.1	}
336	greg	1.8	if (fwritescan(scanln, scanlen(&picres), stdout) < 0) {
337	greg	1.1	fprintf(stderr, "%s: write error\n", progname);
338			quit(1);
339			}
340			}
341			free((char *)scanln);
342			}
343
344
345			quit(code)
346			int code;
347			{
348			exit(code);
349			}
350
351
352			getcascii(col, fp) /* get an ascii color value from fp */
353			COLOR col;
354			FILE *fp;
355			{
356	greg	2.5	double vd[3];
357	greg	1.1
358			if (fscanf(fp, "%lf %lf %lf", &vd[0], &vd[1], &vd[2]) != 3)
359			return(-1);
360	greg	2.4	setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]);
361	greg	1.1	return(0);
362			}
363
364
365			getcdouble(col, fp) /* get a double color value from fp */
366			COLOR col;
367			FILE *fp;
368			{
369	greg	2.5	double vd[3];
370	greg	1.1
371	greg	1.4	if (fread((char *)vd, sizeof(double), 3, fp) != 3)
372	greg	1.1	return(-1);
373	greg	2.4	setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]);
374	greg	1.1	return(0);
375			}
376
377
378			getcfloat(col, fp) /* get a float color value from fp */
379			COLOR col;
380			FILE *fp;
381			{
382			float vf[3];
383
384	greg	1.4	if (fread((char *)vf, sizeof(float), 3, fp) != 3)
385	greg	1.1	return(-1);
386	greg	2.4	setcolor(col, vf[rord[RED]], vf[rord[GRN]], vf[rord[BLU]]);
387	greg	1.1	return(0);
388			}
389
390
391			getcint(col, fp) /* get an int color value from fp */
392			COLOR col;
393			FILE *fp;
394			{
395			int vi[3];
396
397			if (fscanf(fp, "%d %d %d", &vi[0], &vi[1], &vi[2]) != 3)
398			return(-1);
399	greg	2.4	setcolor(col, (vi[rord[RED]]+.5)/256.,
400			(vi[rord[GRN]]+.5)/256., (vi[rord[BLU]]+.5)/256.);
401	greg	1.1	return(0);
402			}
403
404
405			getcbyte(col, fp) /* get a byte color value from fp */
406			COLOR col;
407			FILE *fp;
408			{
409			BYTE vb[3];
410
411	greg	1.4	if (fread((char *)vb, sizeof(BYTE), 3, fp) != 3)
412	greg	1.1	return(-1);
413	greg	2.4	setcolor(col, (vb[rord[RED]]+.5)/256.,
414			(vb[rord[GRN]]+.5)/256., (vb[rord[BLU]]+.5)/256.);
415	greg	1.1	return(0);
416			}
417
418
419			getbascii(col, fp) /* get an ascii brightness value from fp */
420			COLOR col;
421			FILE *fp;
422			{
423	greg	2.5	double vd;
424	greg	1.1
425			if (fscanf(fp, "%lf", &vd) != 1)
426			return(-1);
427			setcolor(col, vd, vd, vd);
428			return(0);
429			}
430
431
432			getbdouble(col, fp) /* get a double brightness value from fp */
433			COLOR col;
434			FILE *fp;
435			{
436	greg	2.5	double vd;
437	greg	1.1
438	greg	1.4	if (fread((char *)&vd, sizeof(double), 1, fp) != 1)
439	greg	1.1	return(-1);
440			setcolor(col, vd, vd, vd);
441			return(0);
442			}
443
444
445			getbfloat(col, fp) /* get a float brightness value from fp */
446			COLOR col;
447			FILE *fp;
448			{
449			float vf;
450
451	greg	1.4	if (fread((char *)&vf, sizeof(float), 1, fp) != 1)
452	greg	1.1	return(-1);
453			setcolor(col, vf, vf, vf);
454			return(0);
455			}
456
457
458			getbint(col, fp) /* get an int brightness value from fp */
459			COLOR col;
460			FILE *fp;
461			{
462			int vi;
463	greg	2.5	double d;
464	greg	1.1
465			if (fscanf(fp, "%d", &vi) != 1)
466			return(-1);
467			d = (vi+.5)/256.;
468			setcolor(col, d, d, d);
469			return(0);
470			}
471
472
473			getbbyte(col, fp) /* get a byte brightness value from fp */
474			COLOR col;
475			FILE *fp;
476			{
477			BYTE vb;
478	greg	2.5	double d;
479	greg	1.1
480	greg	1.4	if (fread((char *)&vb, sizeof(BYTE), 1, fp) != 1)
481	greg	1.1	return(-1);
482			d = (vb+.5)/256.;
483			setcolor(col, d, d, d);
484			return(0);
485			}
486
487
488			putcascii(col, fp) /* put an ascii color to fp */
489			COLOR col;
490			FILE *fp;
491			{
492			fprintf(fp, "%15.3e %15.3e %15.3e\n",
493	greg	2.4	colval(col,ord[0]),
494			colval(col,ord[1]),
495			colval(col,ord[2]));
496	greg	1.1
497			return(ferror(fp) ? -1 : 0);
498			}
499
500
501			putcfloat(col, fp) /* put a float color to fp */
502			COLOR col;
503			FILE *fp;
504			{
505			float vf[3];
506
507	greg	2.4	vf[0] = colval(col,ord[0]);
508			vf[1] = colval(col,ord[1]);
509			vf[2] = colval(col,ord[2]);
510	greg	1.4	fwrite((char *)vf, sizeof(float), 3, fp);
511	greg	1.1
512			return(ferror(fp) ? -1 : 0);
513			}
514
515
516			putcdouble(col, fp) /* put a double color to fp */
517			COLOR col;
518			FILE *fp;
519			{
520	greg	2.5	double vd[3];
521	greg	1.1
522	greg	2.4	vd[0] = colval(col,ord[0]);
523			vd[1] = colval(col,ord[1]);
524			vd[2] = colval(col,ord[2]);
525	greg	1.4	fwrite((char *)vd, sizeof(double), 3, fp);
526	greg	1.1
527			return(ferror(fp) ? -1 : 0);
528			}
529
530
531			putcint(col, fp) /* put an int color to fp */
532			COLOR col;
533			FILE *fp;
534			{
535			fprintf(fp, "%d %d %d\n",
536	greg	2.4	(int)(colval(col,ord[0])*256.),
537			(int)(colval(col,ord[1])*256.),
538			(int)(colval(col,ord[2])*256.));
539	greg	1.1
540			return(ferror(fp) ? -1 : 0);
541			}
542
543
544			putcbyte(col, fp) /* put a byte color to fp */
545			COLOR col;
546			FILE *fp;
547			{
548			register int i;
549			BYTE vb[3];
550
551	greg	2.4	i = colval(col,ord[0])*256.;
552	greg	1.1	vb[0] = min(i,255);
553	greg	2.4	i = colval(col,ord[1])*256.;
554	greg	1.1	vb[1] = min(i,255);
555	greg	2.4	i = colval(col,ord[2])*256.;
556	greg	1.1	vb[2] = min(i,255);
557	greg	1.4	fwrite((char *)vb, sizeof(BYTE), 3, fp);
558	greg	1.1
559			return(ferror(fp) ? -1 : 0);
560			}
561
562
563			putbascii(col, fp) /* put an ascii brightness to fp */
564			COLOR col;
565			FILE *fp;
566			{
567			fprintf(fp, "%15.3e\n", bright(col));
568
569			return(ferror(fp) ? -1 : 0);
570			}
571
572
573			putbfloat(col, fp) /* put a float brightness to fp */
574			COLOR col;
575			FILE *fp;
576			{
577			float vf;
578
579			vf = bright(col);
580	greg	1.4	fwrite((char *)&vf, sizeof(float), 1, fp);
581	greg	1.1
582			return(ferror(fp) ? -1 : 0);
583			}
584
585
586			putbdouble(col, fp) /* put a double brightness to fp */
587			COLOR col;
588			FILE *fp;
589			{
590	greg	2.5	double vd;
591	greg	1.1
592			vd = bright(col);
593	greg	1.4	fwrite((char *)&vd, sizeof(double), 1, fp);
594	greg	1.1
595			return(ferror(fp) ? -1 : 0);
596			}
597
598
599			putbint(col, fp) /* put an int brightness to fp */
600			COLOR col;
601			FILE *fp;
602			{
603			fprintf(fp, "%d\n", (int)(bright(col)*256.));
604
605			return(ferror(fp) ? -1 : 0);
606			}
607
608
609			putbbyte(col, fp) /* put a byte brightness to fp */
610			COLOR col;
611			FILE *fp;
612			{
613			register int i;
614			BYTE vb;
615
616			i = bright(col)*256.;
617			vb = min(i,255);
618	greg	1.4	fwrite((char *)&vb, sizeof(BYTE), 1, fp);
619	greg	1.1
620			return(ferror(fp) ? -1 : 0);
621			}
622
623
624			set_io() /* set put and get functions */
625			{
626			switch (format) {
627			case 'a': /* ascii */
628			if (brightonly) {
629			getval = getbascii;
630			putval = putbascii;
631			} else {
632			getval = getcascii;
633			putval = putcascii;
634			}
635			return;
636			case 'f': /* binary float */
637			if (brightonly) {
638			getval = getbfloat;
639			putval = putbfloat;
640			} else {
641			getval = getcfloat;
642			putval = putcfloat;
643			}
644			return;
645			case 'd': /* binary double */
646			if (brightonly) {
647			getval = getbdouble;
648			putval = putbdouble;
649			} else {
650			getval = getcdouble;
651			putval = putcdouble;
652			}
653			return;
654			case 'i': /* integer */
655			if (brightonly) {
656			getval = getbint;
657			putval = putbint;
658			} else {
659			getval = getcint;
660			putval = putcint;
661			}
662			return;
663			case 'b': /* byte */
664			if (brightonly) {
665			getval = getbbyte;
666			putval = putbbyte;
667			} else {
668			getval = getcbyte;
669			putval = putcbyte;
670			}
671			return;
672			}
673			}