src/px/ra_pict.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*              Convert an Radiance image to APPLE pict format.
 *
 *                      Orginally Iris to PICT by       Paul Haeberli - 1990
 *                      Hacked into Rad to PICT by Russell Street 1990
 *
 *      History:
 *          V 1                 -- Does basic conversion
 *          V 1.1 (2/11/91)     -- Added options for Gamma
 *                              -- verbose option
 *                              -- man page
 *                              -- better about allocating buffers
 *          V 1.2 (19/11/91)    -- Revised to handle opening "The Radiance Way"
 *                              -- Added exposure level adjustment
 */

#include <stdio.h>
#include <math.h>
#ifdef MSDOS
#include <fcntl.h>
#endif
#include  <time.h>

#include "pict.h"
#include "color.h"
#include "resolu.h"

int     outbytes;                   /* This had better be 32 bits! */
char    *progname;
int     verbose = 0;
float   gamcor = 2.0;
int     bradj = 0;

        /* First some utility routines */

putrect(xorg,yorg,xsize,ysize)
int xorg, yorg, xsize, ysize;
{
    putashort(yorg);
    putashort(xorg);
    putashort(ysize);
    putashort(xsize);
}

putfprect(xorg,yorg,xsize,ysize)
int xorg, yorg, xsize, ysize;
{
    putalong(yorg<<16);
    putalong(xorg<<16);
    putalong(ysize<<16);
    putalong(xsize<<16);
}

putalong(l)
long l;
{
    putbyte((l>>24)&0xff);
    putbyte((l>>16)&0xff);
    putbyte((l>>8)&0xff);
    putbyte((l>>0)&0xff);
}

putashort(s)
short s;
{
    putbyte((s>>8)&0xff);
    putbyte((s>>0)&0xff);
}

putbyte(b)
int b;
{
    if (putc(b,stdout) == EOF && ferror(stdout)) {
        fprintf(stderr,"%s: error on write\n", progname);
        exit(1);
    }
    outbytes++;
}

putbytes(buf,n)
unsigned char *buf;
int n;
{
    if(!fwrite(buf,n,1,stdout)) {
        fprintf(stderr,"%s: error on write\n", progname);
        exit(1);
    }
    outbytes+=n;
}

main(argc,argv)
int argc;
char **argv;
{
    int xsize, ysize;
    int i, picsize;
    int ssizepos, lsizepos;
#ifdef MSDOS
    extern int  _fmode;
    _fmode = O_BINARY;
    setmode(fileno(stdin), O_BINARY);
    setmode(fileno(stdout), O_BINARY);
#endif
    progname = argv[0];

    for (i = 1; i < argc ; i++)
        if (argv[i][0] ==  '-')
            switch (argv[i][1]) {
                case 'g':       gamcor = atof(argv[++i]);
                                break;

                case 'e':       if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
                                   usage();
                                else
                                    bradj = atoi(argv[++i]);
                                break;

                case 'v':       ;
                                verbose = 1;
                                break;

                case 'r':       fprintf(stderr, "Sorry. Get a Macintosh :-)\n");
                                exit(1);

                case '-':       i++;
                                goto outofparse;
                                break;              /* NOTREACHED */

                otherwise:      usage();
                                break;
                 }
        else
            break;

outofparse:

    if (i < argc - 2)
        usage();

    if (i <= argc - 1 && freopen(argv[i], "r", stdin) == NULL) {
        fprintf(stderr, "%s: can not open input \"%s\"\n",
            progname, argv[i]);
        exit(1);
    }

    if (i <= argc - 2 && freopen(argv[i+1], "w", stdout) == NULL) {
        fprintf(stderr, "%s: can not open input \"%s\"\n",
            progname, argv[i+1]);
        exit(1);
    }
        
#ifdef DEBUG
        fprintf(stderr, "Input file: %s\n", i <= argc - 1 ? argv[i] : "stdin");
        fprintf(stderr, "Outut file: %s\n", i <= argc - 2 ? argv[i+1] : "stdout" );
        fprintf(stderr, "Gamma: %f\n", gamcor);
        fprintf(stderr, "Brightness adjust: %d\n", bradj);
        fprintf(stderr, "Verbose: %s\n", verbose ? "on" : "off");
#endif


             /* OK. Now we read the size of the Radiance picture */
    if (checkheader(stdin, COLRFMT, NULL) < 0 ||
            fgetresolu(&xsize, &ysize, stdin) < 0 /* != (YMAJOR|YDECR) */ ) {
        fprintf(stderr, "%s: not a radiance picture\n", progname);
        exit(1);
        }

            /* Set the gamma correction */

    setcolrgam(gamcor);

    for(i=0; i<HEADER_SIZE; i++) 
        putbyte(0);

    ssizepos = outbytes;
    putashort(0);               /* low 16 bits of file size less HEADER_SIZE */
    putrect(0,0,xsize,ysize);   /* bounding box of picture */
    putashort(PICT_picVersion);
    putashort(0x02ff);          /* version 2 pict */
    putashort(PICT_reservedHeader);     /* reserved header opcode */

    lsizepos = outbytes;
    putalong(0);                /* full size of the file */
    putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */
    putalong(0);                /* reserved */

    putashort(PICT_clipRgn);    /* the clip region */
    putashort(10);
    putrect(0,0,xsize,ysize);

    if (verbose)
        fprintf(stderr, "%s: The picture is %d by %d, with a gamma of %f\n",
            progname, xsize, ysize, gamcor);


    putpict(xsize, ysize);      /* Here is where all the work is done */

    putashort(PICT_EndOfPicture); /* end of pict */

    picsize = outbytes-HEADER_SIZE;
    fseek(stdout,ssizepos,0);
    putashort(picsize&0xffff);
    fseek(stdout,lsizepos,0);
    putalong(picsize);

    fclose(stdout);
    fclose(stdin);
    
    exit(0);
    return 0;       /* lint fodder */
}

putpict(xsize, ysize)
int xsize;
int ysize;
{
    int     y;
    int     nbytes, rowbytes;
    char    *cbuf, *pbuf;

    cbuf = (char *)malloc(4 * xsize);

    if (cbuf == NULL) {
        fprintf(stderr, "%s: not enough memory\n", progname);
        exit(1);
        }

    pbuf = (char *)malloc(4 * xsize);

    if (pbuf == NULL) {
        fprintf(stderr, "%s: not enough memory\n", progname);
        exit(1);
        }

    putashort(PICT_Pack32BitsRect); /* 32 bit rgb */
    rowbytes = 4*xsize;
    putalong(0x000000ff);               /* base address */


    if(rowbytes&1)
        rowbytes++;
    putashort(rowbytes|0x8000); /* rowbytes */
    putrect(0,0,xsize,ysize);   /* bounds */
    putashort(0);               /* version */

    putashort(4);       /* packtype */
    putalong(0);        /* packsize */
    putalong(72<<16);   /* hres */
    putalong(72<<16);   /* vres */

    putashort(16);      /* pixeltype */
    putashort(32);      /* pixelsize */
    putashort(3);       /* cmpcount */


    putashort(8);       /* cmpsize */
    putalong(0);        /* planebytes */
    putalong(0);        /* pmtable */
    putalong(0);        /* pmreserved */


    putrect(0,0,xsize,ysize);   /* scr rect */
    putrect(0,0,xsize,ysize);   /* dest rect */


    putashort(0x40);    /* transfer mode */

    for(y=0; y<ysize; y++) {
        getrow(stdin, cbuf, xsize);

        nbytes = packbits(cbuf,pbuf,24*xsize);
        if(rowbytes>250) 
            putashort(nbytes);
        else
            putbyte(nbytes);
        putbytes(pbuf,nbytes);
        }

    if(outbytes&1) 
        putbyte(0);

    free(cbuf);
    free(pbuf);
}

int getrow(in, cbuf, xsize)
FILE *in;
char *cbuf;
int xsize;
{
    extern char *tempbuffer();          /* defined in color.c */
    COLR    *scanin = NULL;
    int     x;

    if ((scanin = (COLR *)tempbuffer(xsize*sizeof(COLR))) == NULL) {
        fprintf(stderr, "%s: not enough memory\n", progname);
        exit(1);
    }

    if (freadcolrs(scanin, xsize, in) < 0) {
        fprintf(stderr, "%s: read error\n", progname);
        exit(1);
        }

    if (bradj)      /* Adjust exposure level */
        shiftcolrs(scanin, xsize, bradj);


    colrs_gambs(scanin, xsize);     /* Gamma correct it */
    
    for (x = 0; x < xsize; x++) {
        cbuf[x] = scanin[x][RED];
        cbuf[xsize + x] = scanin[x][GRN];
        cbuf[2*xsize + x] = scanin[x][BLU];
        }

}


packbits(ibits,pbits,nbits)
unsigned char *ibits, *pbits;
int nbits;
{
    int bytes;                      /* UNUSED */
    unsigned char *sptr;
    unsigned char *ibitsend;
    unsigned char *optr = pbits;
    int nbytes, todo, cc, count;

    nbytes = ((nbits-1)/8)+1;
    ibitsend = ibits+nbytes;
    while(ibits<ibitsend) {
        sptr = ibits;
        ibits += 2;
        while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])||(ibits[-1]!=ibits[0])))
            ibits++;
        if(ibits != ibitsend) {
            ibits -= 2;
        }
        count = ibits-sptr;
        while(count) {
            todo = count>127 ? 127:count;
            count -= todo;
            *optr++ = todo-1;
            while(todo--)
                *optr++ = *sptr++;
        }
        if(ibits == ibitsend)
            break;
        sptr = ibits;
        cc = *ibits++;
        while( (ibits<ibitsend) && (*ibits == cc) )
            ibits++;
        count = ibits-sptr;
        while(count) {
            todo = count>128 ? 128:count;
            count -= todo;
            *optr++ = 257-todo;
            *optr++ = cc;
        }
    }
    return optr-pbits;
}

usage()
{
    fprintf(stderr, "Usage: %s [-v] [-g gamma] [infile [outfile]]\n",
        progname);
    exit(2);
}
Revision:	2.8
Committed:	Sat Feb 22 02:07:27 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.7:	+4 -8 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.8	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4	greg	2.5	/* Convert an Radiance image to APPLE pict format.
5	greg	2.2	*
6			* Orginally Iris to PICT by Paul Haeberli - 1990
7			* Hacked into Rad to PICT by Russell Street 1990
8			*
9			* History:
10			* V 1 -- Does basic conversion
11			* V 1.1 (2/11/91) -- Added options for Gamma
12			* -- verbose option
13			* -- man page
14			* -- better about allocating buffers
15			* V 1.2 (19/11/91) -- Revised to handle opening "The Radiance Way"
16			* -- Added exposure level adjustment
17			*/
18
19	greg	1.1	#include <stdio.h>
20	greg	2.6	#include <math.h>
21	greg	2.5	#ifdef MSDOS
22			#include <fcntl.h>
23			#endif
24	greg	2.8	#include <time.h>
25	greg	2.2
26	greg	1.1	#include "pict.h"
27			#include "color.h"
28	greg	1.4	#include "resolu.h"
29	greg	2.3
30	greg	2.2	int outbytes; /* This had better be 32 bits! */
31			char *progname;
32			int verbose = 0;
33	greg	2.7	float gamcor = 2.0;
34	greg	2.2	int bradj = 0;
35	greg	1.1
36	greg	2.2	/* First some utility routines */
37	greg	1.1
38			putrect(xorg,yorg,xsize,ysize)
39			int xorg, yorg, xsize, ysize;
40			{
41			putashort(yorg);
42			putashort(xorg);
43			putashort(ysize);
44			putashort(xsize);
45			}
46
47			putfprect(xorg,yorg,xsize,ysize)
48			int xorg, yorg, xsize, ysize;
49			{
50			putalong(yorg<<16);
51			putalong(xorg<<16);
52			putalong(ysize<<16);
53			putalong(xsize<<16);
54			}
55
56			putalong(l)
57			long l;
58			{
59			putbyte((l>>24)&0xff);
60			putbyte((l>>16)&0xff);
61			putbyte((l>>8)&0xff);
62			putbyte((l>>0)&0xff);
63			}
64
65			putashort(s)
66			short s;
67			{
68			putbyte((s>>8)&0xff);
69			putbyte((s>>0)&0xff);
70			}
71
72			putbyte(b)
73	greg	2.2	int b;
74	greg	1.1	{
75	greg	2.2	if (putc(b,stdout) == EOF && ferror(stdout)) {
76			fprintf(stderr,"%s: error on write\n", progname);
77	greg	1.1	exit(1);
78			}
79			outbytes++;
80			}
81
82			putbytes(buf,n)
83			unsigned char *buf;
84			int n;
85			{
86	greg	2.2	if(!fwrite(buf,n,1,stdout)) {
87			fprintf(stderr,"%s: error on write\n", progname);
88	greg	1.1	exit(1);
89			}
90			outbytes+=n;
91			}
92
93			main(argc,argv)
94			int argc;
95			char **argv;
96			{
97			int xsize, ysize;
98			int i, picsize;
99			int ssizepos, lsizepos;
100	greg	2.5	#ifdef MSDOS
101			extern int _fmode;
102			_fmode = O_BINARY;
103			setmode(fileno(stdin), O_BINARY);
104			setmode(fileno(stdout), O_BINARY);
105			#endif
106	greg	2.2	progname = argv[0];
107	greg	1.1
108	greg	2.2	for (i = 1; i < argc ; i++)
109	greg	2.5	if (argv[i][0] == '-')
110	greg	2.2	switch (argv[i][1]) {
111	greg	2.7	case 'g': gamcor = atof(argv[++i]);
112	greg	2.2	break;
113	greg	1.1
114	greg	2.2	case 'e': if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
115			usage();
116			else
117			bradj = atoi(argv[++i]);
118			break;
119
120			case 'v': ;
121			verbose = 1;
122			break;
123
124			case 'r': fprintf(stderr, "Sorry. Get a Macintosh :-)\n");
125			exit(1);
126
127			case '-': i++;
128			goto outofparse;
129			break; /* NOTREACHED */
130
131			otherwise: usage();
132			break;
133			}
134			else
135			break;
136
137			outofparse:
138
139			if (i < argc - 2)
140			usage();
141
142			if (i <= argc - 1 && freopen(argv[i], "r", stdin) == NULL) {
143			fprintf(stderr, "%s: can not open input \"%s\"\n",
144			progname, argv[i]);
145	greg	1.1	exit(1);
146			}
147
148	greg	2.2	if (i <= argc - 2 && freopen(argv[i+1], "w", stdout) == NULL) {
149			fprintf(stderr, "%s: can not open input \"%s\"\n",
150			progname, argv[i+1]);
151	greg	1.1	exit(1);
152			}
153	greg	2.2
154			#ifdef DEBUG
155			fprintf(stderr, "Input file: %s\n", i <= argc - 1 ? argv[i] : "stdin");
156	greg	2.5	fprintf(stderr, "Outut file: %s\n", i <= argc - 2 ? argv[i+1] : "stdout" );
157	greg	2.7	fprintf(stderr, "Gamma: %f\n", gamcor);
158	greg	2.2	fprintf(stderr, "Brightness adjust: %d\n", bradj);
159	greg	2.5	fprintf(stderr, "Verbose: %s\n", verbose ? "on" : "off");
160	greg	2.2	#endif
161	greg	1.1
162	greg	2.2
163	greg	2.5	/* OK. Now we read the size of the Radiance picture */
164	greg	2.2	if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
165	greg	2.5	fgetresolu(&xsize, &ysize, stdin) < 0 /* != (YMAJOR\|YDECR) */ ) {
166			fprintf(stderr, "%s: not a radiance picture\n", progname);
167			exit(1);
168	greg	2.2	}
169	greg	1.1
170	greg	2.2	/* Set the gamma correction */
171	greg	1.1
172	greg	2.7	setcolrgam(gamcor);
173	greg	2.2
174	greg	1.1	for(i=0; i<HEADER_SIZE; i++)
175			putbyte(0);
176	greg	2.2
177	greg	1.1	ssizepos = outbytes;
178	greg	2.5	putashort(0); /* low 16 bits of file size less HEADER_SIZE */
179	greg	1.1	putrect(0,0,xsize,ysize); /* bounding box of picture */
180			putashort(PICT_picVersion);
181			putashort(0x02ff); /* version 2 pict */
182			putashort(PICT_reservedHeader); /* reserved header opcode */
183
184			lsizepos = outbytes;
185	greg	2.5	putalong(0); /* full size of the file */
186			putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */
187			putalong(0); /* reserved */
188	greg	1.1
189	greg	2.5	putashort(PICT_clipRgn); /* the clip region */
190	greg	1.1	putashort(10);
191			putrect(0,0,xsize,ysize);
192
193	greg	2.2	if (verbose)
194			fprintf(stderr, "%s: The picture is %d by %d, with a gamma of %f\n",
195	greg	2.7	progname, xsize, ysize, gamcor);
196	greg	1.1
197	greg	2.2
198			putpict(xsize, ysize); /* Here is where all the work is done */
199
200	greg	1.1	putashort(PICT_EndOfPicture); /* end of pict */
201
202			picsize = outbytes-HEADER_SIZE;
203	greg	2.2	fseek(stdout,ssizepos,0);
204	greg	1.1	putashort(picsize&0xffff);
205	greg	2.2	fseek(stdout,lsizepos,0);
206	greg	1.1	putalong(picsize);
207
208	greg	2.2	fclose(stdout);
209			fclose(stdin);
210
211	greg	1.1	exit(0);
212	greg	2.2	return 0; /* lint fodder */
213	greg	1.1	}
214
215			putpict(xsize, ysize)
216			int xsize;
217			int ysize;
218			{
219	greg	2.2	int y;
220			int nbytes, rowbytes;
221			char cbuf, pbuf;
222	greg	1.1
223	greg	2.8	cbuf = (char )malloc(4 xsize);
224	greg	2.2
225			if (cbuf == NULL) {
226			fprintf(stderr, "%s: not enough memory\n", progname);
227			exit(1);
228			}
229
230	greg	2.8	pbuf = (char )malloc(4 xsize);
231	greg	2.2
232			if (pbuf == NULL) {
233			fprintf(stderr, "%s: not enough memory\n", progname);
234			exit(1);
235			}
236
237	greg	1.1	putashort(PICT_Pack32BitsRect); /* 32 bit rgb */
238			rowbytes = 4*xsize;
239			putalong(0x000000ff); /* base address */
240
241	greg	2.2
242	greg	1.1	if(rowbytes&1)
243			rowbytes++;
244	greg	2.5	putashort(rowbytes\|0x8000); /* rowbytes */
245	greg	1.1	putrect(0,0,xsize,ysize); /* bounds */
246			putashort(0); /* version */
247
248			putashort(4); /* packtype */
249			putalong(0); /* packsize */
250			putalong(72<<16); /* hres */
251			putalong(72<<16); /* vres */
252
253			putashort(16); /* pixeltype */
254			putashort(32); /* pixelsize */
255			putashort(3); /* cmpcount */
256
257	greg	2.2
258	greg	1.1	putashort(8); /* cmpsize */
259			putalong(0); /* planebytes */
260			putalong(0); /* pmtable */
261			putalong(0); /* pmreserved */
262
263	greg	2.2
264	greg	1.1	putrect(0,0,xsize,ysize); /* scr rect */
265			putrect(0,0,xsize,ysize); /* dest rect */
266
267	greg	2.2
268	greg	1.1	putashort(0x40); /* transfer mode */
269	greg	2.2
270	greg	1.1	for(y=0; y<ysize; y++) {
271	greg	2.2	getrow(stdin, cbuf, xsize);
272	greg	1.1
273			nbytes = packbits(cbuf,pbuf,24*xsize);
274			if(rowbytes>250)
275			putashort(nbytes);
276			else
277			putbyte(nbytes);
278			putbytes(pbuf,nbytes);
279	greg	2.2	}
280	greg	1.1
281			if(outbytes&1)
282			putbyte(0);
283	greg	2.2
284			free(cbuf);
285			free(pbuf);
286	greg	1.1	}
287
288	greg	2.2	int getrow(in, cbuf, xsize)
289			FILE *in;
290			char *cbuf;
291			int xsize;
292	greg	1.1	{
293	greg	2.5	extern char tempbuffer(); / defined in color.c */
294	greg	2.2	COLR *scanin = NULL;
295	greg	1.1	int x;
296
297	greg	2.2	if ((scanin = (COLR )tempbuffer(xsizesizeof(COLR))) == NULL) {
298			fprintf(stderr, "%s: not enough memory\n", progname);
299			exit(1);
300	greg	1.1	}
301
302			if (freadcolrs(scanin, xsize, in) < 0) {
303	greg	2.5	fprintf(stderr, "%s: read error\n", progname);
304			exit(1);
305			}
306	greg	1.1
307	greg	2.2	if (bradj) /* Adjust exposure level */
308			shiftcolrs(scanin, xsize, bradj);
309
310
311			colrs_gambs(scanin, xsize); /* Gamma correct it */
312	greg	1.1
313			for (x = 0; x < xsize; x++) {
314	greg	2.2	cbuf[x] = scanin[x][RED];
315			cbuf[xsize + x] = scanin[x][GRN];
316			cbuf[2*xsize + x] = scanin[x][BLU];
317			}
318
319	greg	1.1	}
320
321	greg	2.2
322	greg	1.1	packbits(ibits,pbits,nbits)
323			unsigned char ibits, pbits;
324			int nbits;
325			{
326	greg	2.2	int bytes; /* UNUSED */
327	greg	1.1	unsigned char *sptr;
328			unsigned char *ibitsend;
329			unsigned char *optr = pbits;
330			int nbytes, todo, cc, count;
331
332			nbytes = ((nbits-1)/8)+1;
333			ibitsend = ibits+nbytes;
334	greg	2.2	while(ibits<ibitsend) {
335	greg	1.1	sptr = ibits;
336			ibits += 2;
337			while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])\|\|(ibits[-1]!=ibits[0])))
338			ibits++;
339	greg	2.5	if(ibits != ibitsend) {
340	greg	1.1	ibits -= 2;
341			}
342			count = ibits-sptr;
343			while(count) {
344			todo = count>127 ? 127:count;
345			count -= todo;
346			*optr++ = todo-1;
347			while(todo--)
348			optr++ = sptr++;
349			}
350			if(ibits == ibitsend)
351			break;
352			sptr = ibits;
353			cc = *ibits++;
354			while( (ibits<ibitsend) && (*ibits == cc) )
355			ibits++;
356			count = ibits-sptr;
357			while(count) {
358			todo = count>128 ? 128:count;
359			count -= todo;
360			*optr++ = 257-todo;
361			*optr++ = cc;
362			}
363			}
364			return optr-pbits;
365	greg	2.2	}
366
367			usage()
368			{
369			fprintf(stderr, "Usage: %s [-v] [-g gamma] [infile [outfile]]\n",
370			progname);
371			exit(2);
372	greg	1.1	}