| 1 |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* prot.c - program to rotate picture file 90 degrees clockwise. |
| 9 |
* |
| 10 |
* 2/26/88 |
| 11 |
*/ |
| 12 |
|
| 13 |
#include "standard.h" |
| 14 |
|
| 15 |
#include "color.h" |
| 16 |
|
| 17 |
#include "resolu.h" |
| 18 |
|
| 19 |
int order; /* input scanline order */ |
| 20 |
int xres, yres; /* input resolution */ |
| 21 |
|
| 22 |
int correctorder = 0; /* order correction? */ |
| 23 |
int ccw = 0; /* rotate CCW? */ |
| 24 |
|
| 25 |
#ifdef BIGMEM |
| 26 |
char buf[1<<22]; /* output buffer */ |
| 27 |
#else |
| 28 |
char buf[1<<20]; /* output buffer */ |
| 29 |
#endif |
| 30 |
|
| 31 |
int nrows; /* number of rows output at once */ |
| 32 |
|
| 33 |
#define scanbar ((COLR *)buf) |
| 34 |
|
| 35 |
char *progname; |
| 36 |
|
| 37 |
short ordertab[4][2] = { |
| 38 |
{0,XDECR}, {XDECR,XDECR|YDECR}, {XDECR|YDECR,YDECR}, {YDECR,0} |
| 39 |
}; |
| 40 |
|
| 41 |
|
| 42 |
int |
| 43 |
neworder() /* return corrected order */ |
| 44 |
{ |
| 45 |
register int i; |
| 46 |
|
| 47 |
if (correctorder) |
| 48 |
return(order); |
| 49 |
for (i = 4; i--; ) |
| 50 |
if ((order&~YMAJOR) == ordertab[i][ccw]) |
| 51 |
return(ordertab[i][1-ccw] | ((order&YMAJOR)^YMAJOR)); |
| 52 |
fputs("Order botch!\n", stderr); |
| 53 |
exit(2); |
| 54 |
} |
| 55 |
|
| 56 |
|
| 57 |
main(argc, argv) |
| 58 |
int argc; |
| 59 |
char *argv[]; |
| 60 |
{ |
| 61 |
static char picfmt[LPICFMT+1] = PICFMT; |
| 62 |
int rval; |
| 63 |
FILE *fin; |
| 64 |
|
| 65 |
progname = argv[0]; |
| 66 |
|
| 67 |
while (argc > 2 && argv[1][0] == '-') { |
| 68 |
switch (argv[1][1]) { |
| 69 |
case 'c': |
| 70 |
correctorder = 1; |
| 71 |
break; |
| 72 |
case 'r': |
| 73 |
ccw = 1; |
| 74 |
break; |
| 75 |
default: |
| 76 |
goto userr; |
| 77 |
} |
| 78 |
argc--; argv++; |
| 79 |
} |
| 80 |
if (argc != 2 && argc != 3) |
| 81 |
goto userr; |
| 82 |
if ((fin = fopen(argv[1], "r")) == NULL) { |
| 83 |
fprintf(stderr, "%s: cannot open\n", argv[1]); |
| 84 |
exit(1); |
| 85 |
} |
| 86 |
if (argc == 3 && freopen(argv[2], "w", stdout) == NULL) { |
| 87 |
fprintf(stderr, "%s: cannot open\n", argv[2]); |
| 88 |
exit(1); |
| 89 |
} |
| 90 |
/* transfer header */ |
| 91 |
if ((rval = checkheader(fin, picfmt, stdout)) < 0) { |
| 92 |
fprintf(stderr, "%s: not a Radiance picture\n", progname); |
| 93 |
exit(1); |
| 94 |
} |
| 95 |
if (rval) |
| 96 |
fputformat(picfmt, stdout); |
| 97 |
/* add new header info. */ |
| 98 |
fputs(progname, stdout); |
| 99 |
if (ccw) fputs(" -r", stdout); |
| 100 |
if (correctorder) fputs(" -c", stdout); |
| 101 |
fputs("\n\n", stdout); |
| 102 |
/* get picture size */ |
| 103 |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
| 104 |
fprintf(stderr, "%s: bad picture size\n", progname); |
| 105 |
exit(1); |
| 106 |
} |
| 107 |
/* write new picture size */ |
| 108 |
fputresolu(neworder(), yres, xres, stdout); |
| 109 |
/* compute buffer capacity */ |
| 110 |
nrows = sizeof(buf)/sizeof(COLR)/yres; |
| 111 |
if (ccw) /* rotate the image */ |
| 112 |
rotateccw(fin); |
| 113 |
else |
| 114 |
rotatecw(fin); |
| 115 |
exit(0); |
| 116 |
userr: |
| 117 |
fprintf(stderr, "Usage: %s [-r][-c] infile [outfile]\n", progname); |
| 118 |
exit(1); |
| 119 |
} |
| 120 |
|
| 121 |
|
| 122 |
rotatecw(fp) /* rotate picture clockwise */ |
| 123 |
FILE *fp; |
| 124 |
{ |
| 125 |
register COLR *inln; |
| 126 |
register int xoff, inx, iny; |
| 127 |
long start, ftell(); |
| 128 |
|
| 129 |
if ((inln = (COLR *)malloc(xres*sizeof(COLR))) == NULL) { |
| 130 |
fprintf(stderr, "%s: out of memory\n", progname); |
| 131 |
exit(1); |
| 132 |
} |
| 133 |
start = ftell(fp); |
| 134 |
for (xoff = 0; xoff < xres; xoff += nrows) { |
| 135 |
if (fseek(fp, start, 0) < 0) { |
| 136 |
fprintf(stderr, "%s: seek error\n", progname); |
| 137 |
exit(1); |
| 138 |
} |
| 139 |
for (iny = yres-1; iny >= 0; iny--) { |
| 140 |
if (freadcolrs(inln, xres, fp) < 0) { |
| 141 |
fprintf(stderr, "%s: read error\n", progname); |
| 142 |
exit(1); |
| 143 |
} |
| 144 |
for (inx = 0; inx < nrows && xoff+inx < xres; inx++) |
| 145 |
copycolr(scanbar[inx*yres+iny], |
| 146 |
inln[xoff+inx]); |
| 147 |
} |
| 148 |
for (inx = 0; inx < nrows && xoff+inx < xres; inx++) |
| 149 |
if (fwritecolrs(scanbar+inx*yres, yres, stdout) < 0) { |
| 150 |
fprintf(stderr, "%s: write error\n", progname); |
| 151 |
exit(1); |
| 152 |
} |
| 153 |
} |
| 154 |
free((char *)inln); |
| 155 |
} |
| 156 |
|
| 157 |
|
| 158 |
rotateccw(fp) /* rotate picture counter-clockwise */ |
| 159 |
FILE *fp; |
| 160 |
{ |
| 161 |
register COLR *inln; |
| 162 |
register int xoff, inx, iny; |
| 163 |
long start, ftell(); |
| 164 |
|
| 165 |
if ((inln = (COLR *)malloc(xres*sizeof(COLR))) == NULL) { |
| 166 |
fprintf(stderr, "%s: out of memory\n", progname); |
| 167 |
exit(1); |
| 168 |
} |
| 169 |
start = ftell(fp); |
| 170 |
for (xoff = xres-1; xoff >= 0; xoff -= nrows) { |
| 171 |
if (fseek(fp, start, 0) < 0) { |
| 172 |
fprintf(stderr, "%s: seek error\n", progname); |
| 173 |
exit(1); |
| 174 |
} |
| 175 |
for (iny = 0; iny < yres; iny++) { |
| 176 |
if (freadcolrs(inln, xres, fp) < 0) { |
| 177 |
fprintf(stderr, "%s: read error\n", progname); |
| 178 |
exit(1); |
| 179 |
} |
| 180 |
for (inx = 0; inx < nrows && xoff-inx >= 0; inx++) |
| 181 |
copycolr(scanbar[inx*yres+iny], |
| 182 |
inln[xoff-inx]); |
| 183 |
} |
| 184 |
for (inx = 0; inx < nrows && xoff-inx >= 0; inx++) |
| 185 |
if (fwritecolrs(scanbar+inx*yres, yres, stdout) < 0) { |
| 186 |
fprintf(stderr, "%s: write error\n", progname); |
| 187 |
exit(1); |
| 188 |
} |
| 189 |
} |
| 190 |
free((char *)inln); |
| 191 |
} |
