void
main(int argc, char *argv[])
{
Memimage *m;
int fd, r;
char f;
f = 0;
r = 0;
fd = 0;
ARGBEGIN {
case 'u':
f = 'u';
break;
case 'l':
f = 'l';
break;
case 'r':
r = atoi(EARGF(usage()));
break;
default:
usage();
} ARGEND;
if(*argv){
fd = open(*argv, OREAD);
if(fd < 0)
sysfatal("open: %r");
}
memimageinit();
if((m = readmemimage(fd)) == nil)
sysfatal("readmemimage: %r");
if(f == 'u' || f == 'l'){
m = upsidedown(m);
if(f == 'l')
r = 180;
}
switch(r % 360){
case 270:
m = rot90(m);
case 180:
m = rot90(m);
case 90:
m = rot90(m);
break;
}
if(writememimage(1, m) < 0)
sysfatal("writememimage: %r");
exits(0);
}
void
main(int argc, char **argv)
{
int fd, xsize, ysize;
Memimage *im, *nim;
ulong ochan, tchan;
xsize = ysize = 0;
ARGBEGIN{
case 'a':
xsize = ysize = getsize(EARGF(usage()));
break;
case 'x':
xsize = getsize(EARGF(usage()));
break;
case 'y':
ysize = getsize(EARGF(usage()));
break;
default:
usage();
}ARGEND
fd = 0;
if(*argv){
fd = open(*argv, OREAD);
if(fd < 0)
sysfatal("open: %r");
}
memimageinit();
if((im = readmemimage(fd)) == nil)
sysfatal("readmemimage: %r");
if(xsize & PERCENT)
xsize = ((xsize & ~PERCENT) * Dx(im->r)) / 100;
if(ysize & PERCENT)
ysize = ((ysize & ~PERCENT) * Dy(im->r)) / 100;
if(xsize || ysize){
if(ysize == 0)
ysize = (xsize * Dy(im->r)) / Dx(im->r);
if(xsize == 0)
xsize = (ysize * Dx(im->r)) / Dy(im->r);
ochan = im->chan;
switch(ochan){
default:
for(tchan = ochan; tchan; tchan >>= 8)
if(TYPE(tchan) == CAlpha){
tchan = RGBA32;
break;
}
if(tchan == 0)
tchan = RGB24;
break;
case GREY8:
case RGB24:
case RGBA32:
case ARGB32:
case XRGB32:
tchan = ochan;
break;
case GREY1:
case GREY2:
case GREY4:
tchan = GREY8;
break;
}
if(tchan != ochan){
if((nim = allocmemimage(im->r, tchan)) == nil)
sysfatal("allocimage: %r");
memimagedraw(nim, nim->r, im, im->r.min, nil, ZP, S);
freememimage(im);
im = nim;
}
if((nim = allocmemimage(
Rect(im->r.min.x, im->r.min.y, im->r.min.x+xsize, im->r.min.y+ysize),
tchan)) == nil)
sysfatal("allocmemimage: %r");
resample(nim, nim->r, im, im->r);
freememimage(im);
im = nim;
if(tchan != ochan){
if((im = allocmemimage(nim->r, ochan)) == nil)
sysfatal("allocimage: %r");
memimagedraw(im, im->r, nim, nim->r.min, nil, ZP, S);
freememimage(nim);
}
}
if(writememimage(1, im) < 0)
sysfatal("writememimage: %r");
exits(0);
}
void
main(int argc, char *argv[])
{
char *tostr, *file;
int fd, uncompressed;
ulong tochan;
Memimage *m, *n;
tostr = nil;
uncompressed = 0;
ARGBEGIN{
case 'c':
tostr = EARGF(usage());
break;
case 'u':
uncompressed = 1;
break;
default:
usage();
}ARGEND
memimageinit();
file = "<stdin>";
m = nil;
switch(argc){
case 0:
m = readmemimage(0);
break;
case 1:
file = argv[0];
fd = open(file, OREAD);
if(fd < 0)
sysfatal("can't open %s: %r", file);
m = readmemimage(fd);
close(fd);
break;
default:
usage();
}
if(m == nil)
sysfatal("can't read %s: %r", file);
if(tostr == nil)
tochan = m->chan;
else{
tochan = strtochan(tostr);
if(tochan == 0)
sysfatal("bad channel descriptor '%s'", tostr);
}
n = allocmemimage(m->r, tochan);
if(n == nil)
sysfatal("can't allocate new image: %r");
memimagedraw(n, n->r, m, m->r.min, nil, ZP, S);
if(uncompressed)
writeuncompressed(1, n);
else
writememimage(1, n);
exits(nil);
}