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 double   atof();
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:	2.3
Committed:	Wed Nov 27 09:14:03 1991 UTC (32 years, 5 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.2:	+3 -1 lines
Log Message:	removed reference to stdlib.h
#	Content
1	#ifndef lint
2	static char SCCSid[] = "$SunId$ Auckuni";
3	#endif
4
5	/*
6	* 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	#include <stdio.h>
23
24	#include "pict.h"
25	#include "color.h"
26	#include "resolu.h"
27
28	extern double atof();
29	extern char *malloc();
30
31	int outbytes; /* This had better be 32 bits! */
32	char *progname;
33	int verbose = 0;
34	float gamma = 2.0;
35	int bradj = 0;
36
37	/* First some utility routines */
38
39	putrect(xorg,yorg,xsize,ysize)
40	int xorg, yorg, xsize, ysize;
41	{
42	putashort(yorg);
43	putashort(xorg);
44	putashort(ysize);
45	putashort(xsize);
46	}
47
48	putfprect(xorg,yorg,xsize,ysize)
49	int xorg, yorg, xsize, ysize;
50	{
51	putalong(yorg<<16);
52	putalong(xorg<<16);
53	putalong(ysize<<16);
54	putalong(xsize<<16);
55	}
56
57	putalong(l)
58	long l;
59	{
60	putbyte((l>>24)&0xff);
61	putbyte((l>>16)&0xff);
62	putbyte((l>>8)&0xff);
63	putbyte((l>>0)&0xff);
64	}
65
66	putashort(s)
67	short s;
68	{
69	putbyte((s>>8)&0xff);
70	putbyte((s>>0)&0xff);
71	}
72
73	putbyte(b)
74	int b;
75	{
76	if (putc(b,stdout) == EOF && ferror(stdout)) {
77	fprintf(stderr,"%s: error on write\n", progname);
78	exit(1);
79	}
80	outbytes++;
81	}
82
83	putbytes(buf,n)
84	unsigned char *buf;
85	int n;
86	{
87	if(!fwrite(buf,n,1,stdout)) {
88	fprintf(stderr,"%s: error on write\n", progname);
89	exit(1);
90	}
91	outbytes+=n;
92	}
93
94	main(argc,argv)
95	int argc;
96	char **argv;
97	{
98	int xsize, ysize;
99	int i, picsize;
100	int ssizepos, lsizepos;
101
102	progname = argv[0];
103
104	for (i = 1; i < argc ; i++)
105	if (argv[i][0] == '-')
106	switch (argv[i][1]) {
107	case 'g': gamma = atof(argv[++i]);
108	break;
109
110	case 'e': if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
111	usage();
112	else
113	bradj = atoi(argv[++i]);
114	break;
115
116	case 'v': ;
117	verbose = 1;
118	break;
119
120	case 'r': fprintf(stderr, "Sorry. Get a Macintosh :-)\n");
121	exit(1);
122
123	case '-': i++;
124	goto outofparse;
125	break; /* NOTREACHED */
126
127	otherwise: usage();
128	break;
129	}
130	else
131	break;
132
133	outofparse:
134
135	if (i < argc - 2)
136	usage();
137
138	if (i <= argc - 1 && freopen(argv[i], "r", stdin) == NULL) {
139	fprintf(stderr, "%s: can not open input \"%s\"\n",
140	progname, argv[i]);
141	exit(1);
142	}
143
144	if (i <= argc - 2 && freopen(argv[i+1], "w", stdout) == NULL) {
145	fprintf(stderr, "%s: can not open input \"%s\"\n",
146	progname, argv[i+1]);
147	exit(1);
148	}
149
150	#ifdef DEBUG
151	fprintf(stderr, "Input file: %s\n", i <= argc - 1 ? argv[i] : "stdin");
152	fprintf(stderr, "Outut file: %s\n", i <= argc - 2 ? argv[i+1] : "stdout" );
153	fprintf(stderr, "Gamma: %f\n", gamma);
154	fprintf(stderr, "Brightness adjust: %d\n", bradj);
155	fprintf(stderr, "Verbose: %s\n", verbose ? "on" : "off");
156	#endif
157
158
159	/* OK. Now we read the size of the Radiance picture */
160	if (checkheader(stdin, COLRFMT, NULL) < 0 \|\|
161	fgetresolu(&xsize, &ysize, stdin) < 0 /* != (YMAJOR\|YDECR) */ ) {
162	fprintf(stderr, "%s: not a radiance picture\n", progname);
163	exit(1);
164	}
165
166	/* Set the gamma correction */
167
168	setcolrgam(gamma);
169
170	for(i=0; i<HEADER_SIZE; i++)
171	putbyte(0);
172
173	ssizepos = outbytes;
174	putashort(0); /* low 16 bits of file size less HEADER_SIZE */
175	putrect(0,0,xsize,ysize); /* bounding box of picture */
176	putashort(PICT_picVersion);
177	putashort(0x02ff); /* version 2 pict */
178	putashort(PICT_reservedHeader); /* reserved header opcode */
179
180	lsizepos = outbytes;
181	putalong(0); /* full size of the file */
182	putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */
183	putalong(0); /* reserved */
184
185	putashort(PICT_clipRgn); /* the clip region */
186	putashort(10);
187	putrect(0,0,xsize,ysize);
188
189	if (verbose)
190	fprintf(stderr, "%s: The picture is %d by %d, with a gamma of %f\n",
191	progname, xsize, ysize, gamma);
192
193
194	putpict(xsize, ysize); /* Here is where all the work is done */
195
196	putashort(PICT_EndOfPicture); /* end of pict */
197
198	picsize = outbytes-HEADER_SIZE;
199	fseek(stdout,ssizepos,0);
200	putashort(picsize&0xffff);
201	fseek(stdout,lsizepos,0);
202	putalong(picsize);
203
204	fclose(stdout);
205	fclose(stdin);
206
207	exit(0);
208	return 0; /* lint fodder */
209	}
210
211	putpict(xsize, ysize)
212	int xsize;
213	int ysize;
214	{
215	int y;
216	int nbytes, rowbytes;
217	char cbuf, pbuf;
218
219	cbuf = malloc(4 * xsize);
220
221	if (cbuf == NULL) {
222	fprintf(stderr, "%s: not enough memory\n", progname);
223	exit(1);
224	}
225
226	pbuf = malloc(4 * xsize);
227
228	if (pbuf == NULL) {
229	fprintf(stderr, "%s: not enough memory\n", progname);
230	exit(1);
231	}
232
233	putashort(PICT_Pack32BitsRect); /* 32 bit rgb */
234	rowbytes = 4*xsize;
235	putalong(0x000000ff); /* base address */
236
237
238	if(rowbytes&1)
239	rowbytes++;
240	putashort(rowbytes\|0x8000); /* rowbytes */
241	putrect(0,0,xsize,ysize); /* bounds */
242	putashort(0); /* version */
243
244	putashort(4); /* packtype */
245	putalong(0); /* packsize */
246	putalong(72<<16); /* hres */
247	putalong(72<<16); /* vres */
248
249	putashort(16); /* pixeltype */
250	putashort(32); /* pixelsize */
251	putashort(3); /* cmpcount */
252
253
254	putashort(8); /* cmpsize */
255	putalong(0); /* planebytes */
256	putalong(0); /* pmtable */
257	putalong(0); /* pmreserved */
258
259
260	putrect(0,0,xsize,ysize); /* scr rect */
261	putrect(0,0,xsize,ysize); /* dest rect */
262
263
264	putashort(0x40); /* transfer mode */
265
266	for(y=0; y<ysize; y++) {
267	getrow(stdin, cbuf, xsize);
268
269	nbytes = packbits(cbuf,pbuf,24*xsize);
270	if(rowbytes>250)
271	putashort(nbytes);
272	else
273	putbyte(nbytes);
274	putbytes(pbuf,nbytes);
275	}
276
277	if(outbytes&1)
278	putbyte(0);
279
280	free(cbuf);
281	free(pbuf);
282	}
283
284	int getrow(in, cbuf, xsize)
285	FILE *in;
286	char *cbuf;
287	int xsize;
288	{
289	extern char tempbuffer(); / defined in color.c */
290	COLR *scanin = NULL;
291	int x;
292
293	if ((scanin = (COLR )tempbuffer(xsizesizeof(COLR))) == NULL) {
294	fprintf(stderr, "%s: not enough memory\n", progname);
295	exit(1);
296	}
297
298	if (freadcolrs(scanin, xsize, in) < 0) {
299	fprintf(stderr, "%s: read error\n", progname);
300	exit(1);
301	}
302
303	if (bradj) /* Adjust exposure level */
304	shiftcolrs(scanin, xsize, bradj);
305
306
307	colrs_gambs(scanin, xsize); /* Gamma correct it */
308
309	for (x = 0; x < xsize; x++) {
310	cbuf[x] = scanin[x][RED];
311	cbuf[xsize + x] = scanin[x][GRN];
312	cbuf[2*xsize + x] = scanin[x][BLU];
313	}
314
315	}
316
317
318	packbits(ibits,pbits,nbits)
319	unsigned char ibits, pbits;
320	int nbits;
321	{
322	int bytes; /* UNUSED */
323	unsigned char *sptr;
324	unsigned char *ibitsend;
325	unsigned char *optr = pbits;
326	int nbytes, todo, cc, count;
327
328	nbytes = ((nbits-1)/8)+1;
329	ibitsend = ibits+nbytes;
330	while(ibits<ibitsend) {
331	sptr = ibits;
332	ibits += 2;
333	while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])\|\|(ibits[-1]!=ibits[0])))
334	ibits++;
335	if(ibits != ibitsend) {
336	ibits -= 2;
337	}
338	count = ibits-sptr;
339	while(count) {
340	todo = count>127 ? 127:count;
341	count -= todo;
342	*optr++ = todo-1;
343	while(todo--)
344	optr++ = sptr++;
345	}
346	if(ibits == ibitsend)
347	break;
348	sptr = ibits;
349	cc = *ibits++;
350	while( (ibits<ibitsend) && (*ibits == cc) )
351	ibits++;
352	count = ibits-sptr;
353	while(count) {
354	todo = count>128 ? 128:count;
355	count -= todo;
356	*optr++ = 257-todo;
357	*optr++ = cc;
358	}
359	}
360	return optr-pbits;
361	}
362
363	usage()
364	{
365	fprintf(stderr, "Usage: %s [-v] [-g gamma] [infile [outfile]]\n",
366	progname);
367	exit(2);
368	}