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
#	User	Rev	Content
1	greg	1.1	#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	greg	1.3
14			extern char *malloc();
15	greg	1.1
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	greg	1.2	int
196			getrow(in, mybuff, xsize)
197			FILE *in;
198			char *mybuff;
199			int xsize;
200	greg	1.1	{
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			}