src/px/ra_pict.c

#ifndef lint
static char SCCSid[] = "$SunId$ AU";
#endif
/*
    rad2pict - Convert an Radiance image to APPLE pict format.
        
    School of Architecture, Auckland University, Private Bag
    Auckland, New Zealand
*/
#include <stdio.h>
#include "pict.h"
#include "color.h"

extern char  *malloc();

char cbuf[8192*5]; 
char pbuf[8192]; 
int outbytes;
FILE *outf, *inf;
char **gargv;

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)
unsigned char b;
{
    char c[1];

    c[0] = b;
    if(!fwrite(c,1,1,outf)) {
        fprintf(stderr,"%s: error on write\n", gargv[0]);
        exit(1);
    }
    outbytes++;
}

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

main(argc,argv)
int argc;
char **argv;
{
    int xsize, ysize;
    int i, picsize;
    int ssizepos, lsizepos;

    gargv = argv;

    if( argc<3 ) {
        fprintf(stderr, "Usage: %s inimage out.pict\n", gargv[0]);
        exit(1);
    } 

    if( (inf=fopen(gargv[1],"rb")) == NULL ) {
        fprintf(stderr,"%s: can't open input file %s\n",gargv[0], gargv[1]);
        exit(1);
    }

    if( (outf=fopen(gargv[2],"wb")) == NULL ) {
        fprintf(stderr,"%s: can't open output file %s\n", gargv[0], gargv[1]);
        exit(1);
    }

    if (checkheader(inf, COLRFMT, NULL) < 0 ||
            fgetresolu(&xsize, &ysize, inf) != (YMAJOR|YDECR)) {
        fprintf(stderr, "%s: not a radiance picture\n", argv[1]);
        exit(1);
    }

    setcolrgam(2.0);

    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);

    putpict(xsize, ysize);

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

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

    fclose(outf);
    exit(0);
}

putpict(xsize, ysize)
int xsize;
int ysize;
{
    int y;
    int nbytes, rowbytes;

    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(inf, cbuf, xsize);

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

    if(outbytes&1) 
        putbyte(0);
}

int
getrow(in, mybuff, xsize)
FILE  *in;
char  *mybuff;
int  xsize;
{
    COLOR    color;
    COLR    *scanin = (COLR*) malloc(xsize * sizeof(COLR));
    int     x;

    if (scanin == NULL) {
        printf("scanin null");
    }


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

    colrs_gambs(scanin, xsize);
    
    for (x = 0; x < xsize; x++) {
        colr_color(color, scanin[x]);
        cbuf[xsize * 0 + x] = color[RED] * 255;
        cbuf[xsize * 1 + x] = color[GRN] * 255;
        cbuf[xsize * 2 + x] = color[BLU] * 255;
    }
    free(scanin);
}

packbits(ibits,pbits,nbits)
unsigned char *ibits, *pbits;
int nbits;
{
    int bytes;
    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;
}
Revision:	1.3
Committed:	Mon Oct 28 16:41:31 1991 UTC (32 years, 5 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+2 -1 lines
Log Message:	compatibility fixes
#	Content
1	#ifndef lint
2	static char SCCSid[] = "$SunId$ AU";
3	#endif
4	/*
5	rad2pict - Convert an Radiance image to APPLE pict format.
6
7	School of Architecture, Auckland University, Private Bag
8	Auckland, New Zealand
9	*/
10	#include <stdio.h>
11	#include "pict.h"
12	#include "color.h"
13
14	extern char *malloc();
15
16	char cbuf[8192*5];
17	char pbuf[8192];
18	int outbytes;
19	FILE outf, inf;
20	char **gargv;
21
22	putrect(xorg,yorg,xsize,ysize)
23	int xorg, yorg, xsize, ysize;
24	{
25	putashort(yorg);
26	putashort(xorg);
27	putashort(ysize);
28	putashort(xsize);
29	}
30
31	putfprect(xorg,yorg,xsize,ysize)
32	int xorg, yorg, xsize, ysize;
33	{
34	putalong(yorg<<16);
35	putalong(xorg<<16);
36	putalong(ysize<<16);
37	putalong(xsize<<16);
38	}
39
40	putalong(l)
41	long l;
42	{
43	putbyte((l>>24)&0xff);
44	putbyte((l>>16)&0xff);
45	putbyte((l>>8)&0xff);
46	putbyte((l>>0)&0xff);
47	}
48
49	putashort(s)
50	short s;
51	{
52	putbyte((s>>8)&0xff);
53	putbyte((s>>0)&0xff);
54	}
55
56	putbyte(b)
57	unsigned char b;
58	{
59	char c[1];
60
61	c[0] = b;
62	if(!fwrite(c,1,1,outf)) {
63	fprintf(stderr,"%s: error on write\n", gargv[0]);
64	exit(1);
65	}
66	outbytes++;
67	}
68
69	putbytes(buf,n)
70	unsigned char *buf;
71	int n;
72	{
73	if(!fwrite(buf,n,1,outf)) {
74	fprintf(stderr,"topict: error on write\n");
75	exit(1);
76	}
77	outbytes+=n;
78	}
79
80	main(argc,argv)
81	int argc;
82	char **argv;
83	{
84	int xsize, ysize;
85	int i, picsize;
86	int ssizepos, lsizepos;
87
88	gargv = argv;
89
90	if( argc<3 ) {
91	fprintf(stderr, "Usage: %s inimage out.pict\n", gargv[0]);
92	exit(1);
93	}
94
95	if( (inf=fopen(gargv[1],"rb")) == NULL ) {
96	fprintf(stderr,"%s: can't open input file %s\n",gargv[0], gargv[1]);
97	exit(1);
98	}
99
100	if( (outf=fopen(gargv[2],"wb")) == NULL ) {
101	fprintf(stderr,"%s: can't open output file %s\n", gargv[0], gargv[1]);
102	exit(1);
103	}
104
105	if (checkheader(inf, COLRFMT, NULL) < 0 \|\|
106	fgetresolu(&xsize, &ysize, inf) != (YMAJOR\|YDECR)) {
107	fprintf(stderr, "%s: not a radiance picture\n", argv[1]);
108	exit(1);
109	}
110
111	setcolrgam(2.0);
112
113	for(i=0; i<HEADER_SIZE; i++)
114	putbyte(0);
115	ssizepos = outbytes;
116	putashort(0); /* low 16 bits of file size less HEADER_SIZE */
117	putrect(0,0,xsize,ysize); /* bounding box of picture */
118	putashort(PICT_picVersion);
119	putashort(0x02ff); /* version 2 pict */
120	putashort(PICT_reservedHeader); /* reserved header opcode */
121
122	lsizepos = outbytes;
123	putalong(0); /* full size of the file */
124	putfprect(0,0,xsize,ysize); /* fixed point bounding box of picture */
125	putalong(0); /* reserved */
126
127	putashort(PICT_clipRgn); /* the clip region */
128	putashort(10);
129	putrect(0,0,xsize,ysize);
130
131	putpict(xsize, ysize);
132
133	putashort(PICT_EndOfPicture); /* end of pict */
134
135	picsize = outbytes-HEADER_SIZE;
136	fseek(outf,ssizepos,0);
137	putashort(picsize&0xffff);
138	fseek(outf,lsizepos,0);
139	putalong(picsize);
140
141	fclose(outf);
142	exit(0);
143	}
144
145	putpict(xsize, ysize)
146	int xsize;
147	int ysize;
148	{
149	int y;
150	int nbytes, rowbytes;
151
152	putashort(PICT_Pack32BitsRect); /* 32 bit rgb */
153	rowbytes = 4*xsize;
154	putalong(0x000000ff); /* base address */
155
156	if(rowbytes&1)
157	rowbytes++;
158	putashort(rowbytes\|0x8000); /* rowbytes */
159	putrect(0,0,xsize,ysize); /* bounds */
160	putashort(0); /* version */
161
162	putashort(4); /* packtype */
163	putalong(0); /* packsize */
164	putalong(72<<16); /* hres */
165	putalong(72<<16); /* vres */
166
167	putashort(16); /* pixeltype */
168	putashort(32); /* pixelsize */
169	putashort(3); /* cmpcount */
170
171	putashort(8); /* cmpsize */
172	putalong(0); /* planebytes */
173	putalong(0); /* pmtable */
174	putalong(0); /* pmreserved */
175
176	putrect(0,0,xsize,ysize); /* scr rect */
177	putrect(0,0,xsize,ysize); /* dest rect */
178
179	putashort(0x40); /* transfer mode */
180	for(y=0; y<ysize; y++) {
181	getrow(inf, cbuf, xsize);
182
183	nbytes = packbits(cbuf,pbuf,24*xsize);
184	if(rowbytes>250)
185	putashort(nbytes);
186	else
187	putbyte(nbytes);
188	putbytes(pbuf,nbytes);
189	}
190
191	if(outbytes&1)
192	putbyte(0);
193	}
194
195	int
196	getrow(in, mybuff, xsize)
197	FILE *in;
198	char *mybuff;
199	int xsize;
200	{
201	COLOR color;
202	COLR scanin = (COLR) malloc(xsize * sizeof(COLR));
203	int x;
204
205	if (scanin == NULL) {
206	printf("scanin null");
207	}
208
209
210	if (freadcolrs(scanin, xsize, in) < 0) {
211	fprintf(stderr, " read error\n");
212	exit(1);
213	}
214
215	colrs_gambs(scanin, xsize);
216
217	for (x = 0; x < xsize; x++) {
218	colr_color(color, scanin[x]);
219	cbuf[xsize * 0 + x] = color[RED] * 255;
220	cbuf[xsize * 1 + x] = color[GRN] * 255;
221	cbuf[xsize * 2 + x] = color[BLU] * 255;
222	}
223	free(scanin);
224	}
225
226	packbits(ibits,pbits,nbits)
227	unsigned char ibits, pbits;
228	int nbits;
229	{
230	int bytes;
231	unsigned char *sptr;
232	unsigned char *ibitsend;
233	unsigned char *optr = pbits;
234	int nbytes, todo, cc, count;
235
236	nbytes = ((nbits-1)/8)+1;
237	ibitsend = ibits+nbytes;
238	while (ibits<ibitsend) {
239	sptr = ibits;
240	ibits += 2;
241	while((ibits<ibitsend)&&((ibits[-2]!=ibits[-1])\|\|(ibits[-1]!=ibits[0])))
242	ibits++;
243	if(ibits != ibitsend) {
244	ibits -= 2;
245	}
246	count = ibits-sptr;
247	while(count) {
248	todo = count>127 ? 127:count;
249	count -= todo;
250	*optr++ = todo-1;
251	while(todo--)
252	optr++ = sptr++;
253	}
254	if(ibits == ibitsend)
255	break;
256	sptr = ibits;
257	cc = *ibits++;
258	while( (ibits<ibitsend) && (*ibits == cc) )
259	ibits++;
260	count = ibits-sptr;
261	while(count) {
262	todo = count>128 ? 128:count;
263	count -= todo;
264	*optr++ = 257-todo;
265	*optr++ = cc;
266	}
267	}
268	return optr-pbits;
269	}