src/px/ra_xyze.c

#ifndef lint
static const char       RCSid[] = "$Id: ra_xyze.c,v 2.12 2018/08/02 18:33:48 greg Exp $";
#endif
/*
 *  Program to convert between RADIANCE RGBE and XYZE formats
 *  Added white-balance adjustment 10/01 (GW).
 */

#include  <math.h>

#include  "platform.h"
#include  "color.h"
#include  "resolu.h"
#include  "rtio.h"

int  rgbinp = -1;                       /* input is RGBE? */
int  rgbout = 0;                        /* output should be RGBE? */
RGBPRIMS  inprims = STDPRIMS;           /* input primaries */
RGBPRIMS  outprims = STDPRIMS;          /* output primaries */
double  expcomp = 1.0;                  /* exposure compensation */
int  doflat = -1;                       /* produce flat file? */
double  origexp = -1.0;                 /* original exposure */
char  *progname;

static gethfunc headline;
static void quiterr(char *err);
static void convert(void);


static int
headline(                               /* process header line */
        char    *s,
        void    *p
)
{
        char    fmt[MAXFMTLEN];

        if (formatval(fmt, s)) {        /* check if format string */
                if (!strcmp(fmt,COLRFMT))
                        rgbinp = 1;
                else if (!strcmp(fmt,CIEFMT))
                        rgbinp = 0;
                else
                        rgbinp = -2;
                return(0);              /* don't echo */
        }
        if (origexp > 0.0 && isexpos(s)) {
                origexp *= exposval(s);
                return(0);              /* don't echo */
        }
        if (isprims(s)) {               /* get input primaries */
                primsval(inprims, s);
                return(0);              /* don't echo */
        }
                                        /* should I grok colcorr also? */
        return(fputs(s, stdout));
}


int
main(int  argc, char  *argv[])
{
        int  i;
        SET_DEFAULT_BINARY();
        SET_FILE_BINARY(stdin);
        SET_FILE_BINARY(stdout);
        progname = argv[0];

        for (i = 1; i < argc; i++)
                if (argv[i][0] == '-')
                        switch (argv[i][1]) {
                        case 'c':               /* rle-compressed output */
                                doflat = 0;
                                break;
                        case 'u':               /* flat output */
                                doflat = 1;
                                break;
                        case 'r':               /* RGBE output */
                                rgbout = 1;
                                break;
                        case 'p':               /* RGB primaries */
                                if (i+8 >= argc)
                                        goto userr;
                                outprims[RED][CIEX] = atof(argv[++i]);
                                outprims[RED][CIEY] = atof(argv[++i]);
                                outprims[GRN][CIEX] = atof(argv[++i]);
                                outprims[GRN][CIEY] = atof(argv[++i]);
                                outprims[BLU][CIEX] = atof(argv[++i]);
                                outprims[BLU][CIEY] = atof(argv[++i]);
                                outprims[WHT][CIEX] = atof(argv[++i]);
                                outprims[WHT][CIEY] = atof(argv[++i]);
                                break;
                        case 'o':               /* original exposure */
                                origexp = 1.0;
                                break;
                        case 'e':               /* exposure compensation */
                                expcomp = atof(argv[++i]);
                                if (argv[i][0] == '+' || argv[i][0] == '-')
                                        expcomp = pow(2., expcomp);
                                break;
                        default:
                                goto userr;
                        }
                else
                        break;

        if (doflat < 0)
                doflat = !rgbout;
        if (i < argc-2)
                goto userr;
        if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
                fprintf(stderr, "%s: can't open input \"%s\"\n",
                                progname, argv[i]);
                exit(1);
        }
        if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
                fprintf(stderr, "%s: can't open output \"%s\"\n",
                                progname, argv[i+1]);
                exit(1);
        }
        getheader(stdin, headline, NULL);
        if (rgbinp == -2)
                quiterr("unrecognized input file format");
        if (rgbinp == -1)
                rgbinp = !rgbout;
        printargs(argc, argv, stdout);          /* add to header */
        convert();                              /* convert picture */
        exit(0);
userr:
        fprintf(stderr, "Usage: %s [-r][-o][-e exp][-c|-u]", progname);
        fprintf(stderr, "[-p rx ry gx gy bx by wx wy] [input [output]]\n");
        exit(1);
}


static void
quiterr(                /* print message and exit */
        char  *err
)
{
        if (err != NULL) {
                fprintf(stderr, "%s: %s\n", progname, err);
                exit(1);
        }
        exit(0);
}


static void
convert(void)                           /* convert to XYZE or RGBE picture */
{
        int     order;
        int     xmax, ymax;
        COLORMAT        xfm;
        register COLOR  *scanin;
        register COLR   *scanout;
        double  exp2do = expcomp;
        double  exp2report = expcomp;
        int     y;
        register int    x;
                                                /* recover original? */
        if (origexp > 0.0)
                exp2do /= origexp;
                                                /* compute transform */
        if (rgbout) {
                if (rgbinp) {                   /* RGBE -> RGBE */
                        comprgb2rgbWBmat(xfm, inprims, outprims);
                } else {                        /* XYZE -> RGBE */
                        compxyz2rgbWBmat(xfm, outprims);
                        if (origexp > 0.0)
                                exp2do /= WHTEFFICACY;
                        else
                                exp2report *= WHTEFFICACY;
                }
        } else {
                if (rgbinp) {                   /* RGBE -> XYZE */
                        comprgb2xyzWBmat(xfm, inprims);
                        if (origexp > 0.0)
                                exp2do *= WHTEFFICACY;
                        else
                                exp2report /= WHTEFFICACY;
                } else {                        /* XYZE -> XYZE */
                        for (y = 0; y < 3; y++)
                                for (x = 0; x < 3; x++)
                                        xfm[y][x] = x==y ? 1. : 0.;
                }
        }
        for (y = 0; y < 3; y++)
                for (x = 0; x < 3; x++)
                        xfm[y][x] *= exp2do;
                                                /* get input resolution */
        if ((order = fgetresolu(&xmax, &ymax, stdin)) < 0)
                quiterr("bad picture format");
                                                /* complete output header */
        if ((exp2report < 0.99) | (exp2report > 1.01))
                fputexpos(exp2report, stdout);
        if (rgbout) {
                fputprims(outprims, stdout);
                fputformat(COLRFMT, stdout);
        } else
                fputformat(CIEFMT, stdout);
        putc('\n', stdout);
        fputresolu(order, xmax, ymax, stdout);
                                                /* allocate scanline */
        scanin = (COLOR *)malloc(xmax*sizeof(COLOR));
        if (scanin == NULL)
                quiterr("out of memory in convert");
        scanout = doflat ? (COLR *)malloc(xmax*sizeof(COLR)) : NULL;
                                                /* convert image */
        for (y = 0; y < ymax; y++) {
                if (freadscan(scanin, xmax, stdin) < 0)
                        quiterr("error reading input picture");
                for (x = 0; x < xmax; x++) {
                        colortrans(scanin[x], xfm, scanin[x]);
                        if (rgbout)
                                clipgamut(scanin[x], bright(scanin[x]),
                                                CGAMUT_LOWER, cblack, cwhite);
                }
                if (scanout != NULL) {
                        for (x = 0; x < xmax; x++)
                                setcolr(scanout[x], colval(scanin[x],RED),
                                                colval(scanin[x],GRN),
                                                colval(scanin[x],BLU));
                        putbinary((char *)scanout, sizeof(COLR), xmax, stdout);
                } else
                        fwritescan(scanin, xmax, stdout);
                if (ferror(stdout))
                        quiterr("error writing output picture");
        }
                                                /* free scanline */
        free((void *)scanin);
        if (scanout != NULL)
                free((void *)scanout);
}
Revision:	2.13
Committed:	Sat Dec 28 18:05:14 2019 UTC (4 years, 4 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R4, rad5R3, HEAD
Changes since 2.12:	+1 -4 lines
Log Message:	Removed redundant include files
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	greg	2.13	static const char RCSid[] = "$Id: ra_xyze.c,v 2.12 2018/08/02 18:33:48 greg Exp $";
3	greg	2.1	#endif
4			/*
5			* Program to convert between RADIANCE RGBE and XYZE formats
6	greg	2.6	* Added white-balance adjustment 10/01 (GW).
7	greg	2.1	*/
8
9			#include <math.h>
10	schorsch	2.7
11			#include "platform.h"
12	greg	2.1	#include "color.h"
13			#include "resolu.h"
14	greg	2.11	#include "rtio.h"
15	greg	2.1
16			int rgbinp = -1; /* input is RGBE? */
17			int rgbout = 0; /* output should be RGBE? */
18			RGBPRIMS inprims = STDPRIMS; /* input primaries */
19			RGBPRIMS outprims = STDPRIMS; /* output primaries */
20			double expcomp = 1.0; /* exposure compensation */
21			int doflat = -1; /* produce flat file? */
22	greg	2.10	double origexp = -1.0; /* original exposure */
23	greg	2.1	char *progname;
24
25	schorsch	2.8	static gethfunc headline;
26	schorsch	2.9	static void quiterr(char *err);
27			static void convert(void);
28
29	greg	2.1
30	schorsch	2.8
31			static int
32			headline( /* process header line */
33			char *s,
34			void *p
35			)
36	greg	2.1	{
37	greg	2.12	char fmt[MAXFMTLEN];
38	greg	2.1
39			if (formatval(fmt, s)) { /* check if format string */
40			if (!strcmp(fmt,COLRFMT))
41			rgbinp = 1;
42			else if (!strcmp(fmt,CIEFMT))
43			rgbinp = 0;
44			else
45			rgbinp = -2;
46	gwlarson	2.5	return(0); /* don't echo */
47	greg	2.1	}
48	greg	2.10	if (origexp > 0.0 && isexpos(s)) {
49			origexp *= exposval(s);
50			return(0); /* don't echo */
51			}
52	greg	2.1	if (isprims(s)) { /* get input primaries */
53			primsval(inprims, s);
54	gwlarson	2.5	return(0); /* don't echo */
55	greg	2.1	}
56			/* should I grok colcorr also? */
57	gwlarson	2.5	return(fputs(s, stdout));
58	greg	2.1	}
59
60
61	schorsch	2.9	int
62			main(int argc, char *argv[])
63	greg	2.1	{
64			int i;
65	schorsch	2.7	SET_DEFAULT_BINARY();
66			SET_FILE_BINARY(stdin);
67			SET_FILE_BINARY(stdout);
68	greg	2.1	progname = argv[0];
69
70			for (i = 1; i < argc; i++)
71			if (argv[i][0] == '-')
72			switch (argv[i][1]) {
73			case 'c': /* rle-compressed output */
74			doflat = 0;
75			break;
76			case 'u': /* flat output */
77			doflat = 1;
78			break;
79			case 'r': /* RGBE output */
80			rgbout = 1;
81			break;
82			case 'p': /* RGB primaries */
83	greg	2.2	if (i+8 >= argc)
84	greg	2.1	goto userr;
85			outprims[RED][CIEX] = atof(argv[++i]);
86			outprims[RED][CIEY] = atof(argv[++i]);
87			outprims[GRN][CIEX] = atof(argv[++i]);
88			outprims[GRN][CIEY] = atof(argv[++i]);
89			outprims[BLU][CIEX] = atof(argv[++i]);
90			outprims[BLU][CIEY] = atof(argv[++i]);
91			outprims[WHT][CIEX] = atof(argv[++i]);
92			outprims[WHT][CIEY] = atof(argv[++i]);
93			break;
94	greg	2.10	case 'o': /* original exposure */
95			origexp = 1.0;
96			break;
97	greg	2.1	case 'e': /* exposure compensation */
98			expcomp = atof(argv[++i]);
99			if (argv[i][0] == '+' \|\| argv[i][0] == '-')
100			expcomp = pow(2., expcomp);
101			break;
102			default:
103			goto userr;
104			}
105			else
106			break;
107
108			if (doflat < 0)
109			doflat = !rgbout;
110			if (i < argc-2)
111			goto userr;
112			if (i <= argc-1 && freopen(argv[i], "r", stdin) == NULL) {
113			fprintf(stderr, "%s: can't open input \"%s\"\n",
114			progname, argv[i]);
115			exit(1);
116			}
117			if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
118			fprintf(stderr, "%s: can't open output \"%s\"\n",
119			progname, argv[i+1]);
120			exit(1);
121			}
122			getheader(stdin, headline, NULL);
123			if (rgbinp == -2)
124			quiterr("unrecognized input file format");
125			if (rgbinp == -1)
126			rgbinp = !rgbout;
127			printargs(argc, argv, stdout); /* add to header */
128			convert(); /* convert picture */
129			exit(0);
130			userr:
131	greg	2.10	fprintf(stderr, "Usage: %s [-r][-o][-e exp][-c\|-u]", progname);
132	greg	2.1	fprintf(stderr, "[-p rx ry gx gy bx by wx wy] [input [output]]\n");
133			exit(1);
134			}
135
136
137	schorsch	2.9	static void
138			quiterr( /* print message and exit */
139			char *err
140			)
141	greg	2.1	{
142			if (err != NULL) {
143			fprintf(stderr, "%s: %s\n", progname, err);
144			exit(1);
145			}
146			exit(0);
147			}
148
149
150	schorsch	2.9	static void
151			convert(void) /* convert to XYZE or RGBE picture */
152	greg	2.1	{
153			int order;
154			int xmax, ymax;
155			COLORMAT xfm;
156			register COLOR *scanin;
157			register COLR *scanout;
158	greg	2.10	double exp2do = expcomp;
159			double exp2report = expcomp;
160	greg	2.1	int y;
161			register int x;
162	greg	2.10	/* recover original? */
163			if (origexp > 0.0)
164			exp2do /= origexp;
165	greg	2.1	/* compute transform */
166			if (rgbout) {
167			if (rgbinp) { /* RGBE -> RGBE */
168	greg	2.6	comprgb2rgbWBmat(xfm, inprims, outprims);
169	greg	2.1	} else { /* XYZE -> RGBE */
170	greg	2.6	compxyz2rgbWBmat(xfm, outprims);
171	greg	2.10	if (origexp > 0.0)
172			exp2do /= WHTEFFICACY;
173			else
174			exp2report *= WHTEFFICACY;
175	greg	2.1	}
176			} else {
177			if (rgbinp) { /* RGBE -> XYZE */
178	greg	2.6	comprgb2xyzWBmat(xfm, inprims);
179	greg	2.10	if (origexp > 0.0)
180			exp2do *= WHTEFFICACY;
181			else
182			exp2report /= WHTEFFICACY;
183	greg	2.1	} else { /* XYZE -> XYZE */
184			for (y = 0; y < 3; y++)
185			for (x = 0; x < 3; x++)
186	gregl	2.4	xfm[y][x] = x==y ? 1. : 0.;
187	greg	2.1	}
188			}
189	gregl	2.4	for (y = 0; y < 3; y++)
190			for (x = 0; x < 3; x++)
191	greg	2.10	xfm[y][x] *= exp2do;
192	greg	2.1	/* get input resolution */
193			if ((order = fgetresolu(&xmax, &ymax, stdin)) < 0)
194			quiterr("bad picture format");
195			/* complete output header */
196	greg	2.10	if ((exp2report < 0.99) \| (exp2report > 1.01))
197			fputexpos(exp2report, stdout);
198	greg	2.1	if (rgbout) {
199			fputprims(outprims, stdout);
200			fputformat(COLRFMT, stdout);
201			} else
202			fputformat(CIEFMT, stdout);
203			putc('\n', stdout);
204			fputresolu(order, xmax, ymax, stdout);
205			/* allocate scanline */
206			scanin = (COLOR )malloc(xmaxsizeof(COLOR));
207			if (scanin == NULL)
208			quiterr("out of memory in convert");
209			scanout = doflat ? (COLR )malloc(xmaxsizeof(COLR)) : NULL;
210			/* convert image */
211			for (y = 0; y < ymax; y++) {
212			if (freadscan(scanin, xmax, stdin) < 0)
213			quiterr("error reading input picture");
214	greg	2.3	for (x = 0; x < xmax; x++) {
215	greg	2.1	colortrans(scanin[x], xfm, scanin[x]);
216	greg	2.3	if (rgbout)
217			clipgamut(scanin[x], bright(scanin[x]),
218			CGAMUT_LOWER, cblack, cwhite);
219			}
220	greg	2.1	if (scanout != NULL) {
221			for (x = 0; x < xmax; x++)
222			setcolr(scanout[x], colval(scanin[x],RED),
223			colval(scanin[x],GRN),
224			colval(scanin[x],BLU));
225	greg	2.11	putbinary((char *)scanout, sizeof(COLR), xmax, stdout);
226	greg	2.1	} else
227			fwritescan(scanin, xmax, stdout);
228			if (ferror(stdout))
229			quiterr("error writing output picture");
230			}
231			/* free scanline */
232	greg	2.6	free((void *)scanin);
233	greg	2.1	if (scanout != NULL)
234	greg	2.6	free((void *)scanout);
235	greg	2.1	}