src/px/ra_pict.c

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

/*
 *      rad2pict - 
 *              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 "pict.h"
#include "color.h"
#include "resolu.h"

extern char     *malloc();

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

    progname = argv[0];

    for (i = 1; i < argc ; i++)
        if (argv[i][0] ==  '-')
            switch (argv[i][1]) {
                case 'g':       gamma = 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", gamma);
        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(gamma);

    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, gamma);


    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 = malloc(4 * xsize);

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

    pbuf = 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:	2.4
Committed:	Thu Dec 19 14:52:09 1991 UTC (32 years, 4 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.3:	+0 -1 lines
Log Message:	eliminated atof declarations for NeXT
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.2	static char SCCSid[] = "$SunId$ Auckuni";
3	greg	1.1	#endif
4	greg	1.4
5	greg	1.1	/*
6	greg	2.2	* rad2pict -
7			* Convert an Radiance image to APPLE pict format.
8			*
9			* Orginally Iris to PICT by Paul Haeberli - 1990
10			* Hacked into Rad to PICT by Russell Street 1990
11			*
12			* History:
13			* V 1 -- Does basic conversion
14			* V 1.1 (2/11/91) -- Added options for Gamma
15			* -- verbose option
16			* -- man page
17			* -- better about allocating buffers
18			* V 1.2 (19/11/91) -- Revised to handle opening "The Radiance Way"
19			* -- Added exposure level adjustment
20			*/
21
22	greg	1.1	#include <stdio.h>
23	greg	2.2
24	greg	1.1	#include "pict.h"
25			#include "color.h"
26	greg	1.4	#include "resolu.h"
27	greg	2.3
28			extern char *malloc();
29	greg	1.3
30	greg	2.2	int outbytes; /* This had better be 32 bits! */
31			char *progname;
32			int verbose = 0;
33			float gamma = 2.0;
34			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
101	greg	2.2	progname = argv[0];
102	greg	1.1
103	greg	2.2	for (i = 1; i < argc ; i++)
104			if (argv[i][0] == '-')
105			switch (argv[i][1]) {
106			case 'g': gamma = atof(argv[++i]);
107			break;
108	greg	1.1
109	greg	2.2	case 'e': if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
110			usage();
111			else
112			bradj = atoi(argv[++i]);
113			break;
114
115			case 'v': ;
116			verbose = 1;
117			break;
118
119			case 'r': fprintf(stderr, "Sorry. Get a Macintosh :-)\n");
120			exit(1);
121
122			case '-': i++;
123			goto outofparse;
124			break; /* NOTREACHED */
125
126			otherwise: usage();
127			break;
128			}
129			else
130			break;
131
132			outofparse:
133
134			if (i < argc - 2)
135			usage();
136
137			if (i <= argc - 1 && freopen(argv[i], "r", stdin) == NULL) {
138			fprintf(stderr, "%s: can not open input \"%s\"\n",
139			progname, argv[i]);
140	greg	1.1	exit(1);
141			}
142
143	greg	2.2	if (i <= argc - 2 && freopen(argv[i+1], "w", stdout) == NULL) {
144			fprintf(stderr, "%s: can not open input \"%s\"\n",
145			progname, argv[i+1]);
146	greg	1.1	exit(1);
147			}
148	greg	2.2
149			#ifdef DEBUG
150			fprintf(stderr, "Input file: %s\n", i <= argc - 1 ? argv[i] : "stdin");
151			fprintf(stderr, "Outut file: %s\n", i <= argc - 2 ? argv[i+1] : "stdout" );
152			fprintf(stderr, "Gamma: %f\n", gamma);
153			fprintf(stderr, "Brightness adjust: %d\n", bradj);
154			fprintf(stderr, "Verbose: %s\n", verbose ? "on" : "off");
155			#endif
156	greg	1.1
157	greg	2.2
158			/* OK. Now we read the size of the Radiance picture */
159			if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
160			fgetresolu(&xsize, &ysize, stdin) < 0 /* != (YMAJOR\|YDECR) */ ) {
161			fprintf(stderr, "%s: not a radiance picture\n", progname);
162	greg	1.1	exit(1);
163	greg	2.2	}
164	greg	1.1
165	greg	2.2	/* Set the gamma correction */
166	greg	1.1
167	greg	2.2	setcolrgam(gamma);
168
169	greg	1.1	for(i=0; i<HEADER_SIZE; i++)
170			putbyte(0);
171	greg	2.2
172	greg	1.1	ssizepos = outbytes;
173			putashort(0); /* low 16 bits of file size less HEADER_SIZE */
174			putrect(0,0,xsize,ysize); /* bounding box of picture */
175			putashort(PICT_picVersion);
176			putashort(0x02ff); /* version 2 pict */
177			putashort(PICT_reservedHeader); /* reserved header opcode */
178
179			lsizepos = outbytes;
180			putalong(0); /* full size of the file */
181			putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */
182			putalong(0); /* reserved */
183
184			putashort(PICT_clipRgn); /* the clip region */
185			putashort(10);
186			putrect(0,0,xsize,ysize);
187
188	greg	2.2	if (verbose)
189			fprintf(stderr, "%s: The picture is %d by %d, with a gamma of %f\n",
190			progname, xsize, ysize, gamma);
191	greg	1.1
192	greg	2.2
193			putpict(xsize, ysize); /* Here is where all the work is done */
194
195	greg	1.1	putashort(PICT_EndOfPicture); /* end of pict */
196
197			picsize = outbytes-HEADER_SIZE;
198	greg	2.2	fseek(stdout,ssizepos,0);
199	greg	1.1	putashort(picsize&0xffff);
200	greg	2.2	fseek(stdout,lsizepos,0);
201	greg	1.1	putalong(picsize);
202
203	greg	2.2	fclose(stdout);
204			fclose(stdin);
205
206	greg	1.1	exit(0);
207	greg	2.2	return 0; /* lint fodder */
208	greg	1.1	}
209
210			putpict(xsize, ysize)
211			int xsize;
212			int ysize;
213			{
214	greg	2.2	int y;
215			int nbytes, rowbytes;
216			char cbuf, pbuf;
217	greg	1.1
218	greg	2.2	cbuf = malloc(4 * xsize);
219
220			if (cbuf == NULL) {
221			fprintf(stderr, "%s: not enough memory\n", progname);
222			exit(1);
223			}
224
225			pbuf = malloc(4 * xsize);
226
227			if (pbuf == NULL) {
228			fprintf(stderr, "%s: not enough memory\n", progname);
229			exit(1);
230			}
231
232	greg	1.1	putashort(PICT_Pack32BitsRect); /* 32 bit rgb */
233			rowbytes = 4*xsize;
234			putalong(0x000000ff); /* base address */
235
236	greg	2.2
237	greg	1.1	if(rowbytes&1)
238			rowbytes++;
239			putashort(rowbytes\|0x8000); /* rowbytes */
240			putrect(0,0,xsize,ysize); /* bounds */
241			putashort(0); /* version */
242
243			putashort(4); /* packtype */
244			putalong(0); /* packsize */
245			putalong(72<<16); /* hres */
246			putalong(72<<16); /* vres */
247
248			putashort(16); /* pixeltype */
249			putashort(32); /* pixelsize */
250			putashort(3); /* cmpcount */
251
252	greg	2.2
253	greg	1.1	putashort(8); /* cmpsize */
254			putalong(0); /* planebytes */
255			putalong(0); /* pmtable */
256			putalong(0); /* pmreserved */
257
258	greg	2.2
259	greg	1.1	putrect(0,0,xsize,ysize); /* scr rect */
260			putrect(0,0,xsize,ysize); /* dest rect */
261
262	greg	2.2
263	greg	1.1	putashort(0x40); /* transfer mode */
264	greg	2.2
265	greg	1.1	for(y=0; y<ysize; y++) {
266	greg	2.2	getrow(stdin, cbuf, xsize);
267	greg	1.1
268			nbytes = packbits(cbuf,pbuf,24*xsize);
269			if(rowbytes>250)
270			putashort(nbytes);
271			else
272			putbyte(nbytes);
273			putbytes(pbuf,nbytes);
274	greg	2.2	}
275	greg	1.1
276			if(outbytes&1)
277			putbyte(0);
278	greg	2.2
279			free(cbuf);
280			free(pbuf);
281	greg	1.1	}
282
283	greg	2.2	int getrow(in, cbuf, xsize)
284			FILE *in;
285			char *cbuf;
286			int xsize;
287	greg	1.1	{
288	greg	2.2	extern char tempbuffer(); / defined in color.c */
289			COLR *scanin = NULL;
290	greg	1.1	int x;
291
292	greg	2.2	if ((scanin = (COLR )tempbuffer(xsizesizeof(COLR))) == NULL) {
293			fprintf(stderr, "%s: not enough memory\n", progname);
294			exit(1);
295	greg	1.1	}
296
297			if (freadcolrs(scanin, xsize, in) < 0) {
298	greg	2.2	fprintf(stderr, "%s: read error\n", progname);
299	greg	1.1	exit(1);
300	greg	2.2	}
301	greg	1.1
302	greg	2.2	if (bradj) /* Adjust exposure level */
303			shiftcolrs(scanin, xsize, bradj);
304
305
306			colrs_gambs(scanin, xsize); /* Gamma correct it */
307	greg	1.1
308			for (x = 0; x < xsize; x++) {
309	greg	2.2	cbuf[x] = scanin[x][RED];
310			cbuf[xsize + x] = scanin[x][GRN];
311			cbuf[2*xsize + x] = scanin[x][BLU];
312			}
313
314	greg	1.1	}
315
316	greg	2.2
317	greg	1.1	packbits(ibits,pbits,nbits)
318			unsigned char ibits, pbits;
319			int nbits;
320			{
321	greg	2.2	int bytes; /* UNUSED */
322	greg	1.1	unsigned char *sptr;
323			unsigned char *ibitsend;
324			unsigned char *optr = pbits;
325			int nbytes, todo, cc, count;
326
327			nbytes = ((nbits-1)/8)+1;
328			ibitsend = ibits+nbytes;
329	greg	2.2	while(ibits<ibitsend) {
330	greg	1.1	sptr = ibits;
331			ibits += 2;
332			while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])\|\|(ibits[-1]!=ibits[0])))
333			ibits++;
334			if(ibits != ibitsend) {
335			ibits -= 2;
336			}
337			count = ibits-sptr;
338			while(count) {
339			todo = count>127 ? 127:count;
340			count -= todo;
341			*optr++ = todo-1;
342			while(todo--)
343			optr++ = sptr++;
344			}
345			if(ibits == ibitsend)
346			break;
347			sptr = ibits;
348			cc = *ibits++;
349			while( (ibits<ibitsend) && (*ibits == cc) )
350			ibits++;
351			count = ibits-sptr;
352			while(count) {
353			todo = count>128 ? 128:count;
354			count -= todo;
355			*optr++ = 257-todo;
356			*optr++ = cc;
357			}
358			}
359			return optr-pbits;
360	greg	2.2	}
361
362			usage()
363			{
364			fprintf(stderr, "Usage: %s [-v] [-g gamma] [infile [outfile]]\n",
365			progname);
366			exit(2);
367	greg	1.1	}