ip/ipconfig: format ipmask with %M instead of %I

[plan9front.git] / sys / src / cmd / resize.c

diff --git a/sys/src/cmd/resize.c b/sys/src/cmd/resize.c
index 3773c82367f76ccb5a7da5b008c7e3979f41f20e..eb0235a4f31124192edd9e3f9d3adceff1c4f59f 100644 (file)
--- a/sys/src/cmd/resize.c
+++ b/sys/src/cmd/resize.c
@@ -3,6 +3,8 @@
 #include <draw.h>
 #include <memdraw.h>
 
+int nflag;
+
 static void
 resample(Memimage *dst, Rectangle r, Memimage *src, Rectangle sr)
 {
@@ -29,6 +31,8 @@ resample(Memimage *dst, Rectangle r, Memimage *src, Rectangle sr)
        for(dp.y=0; dp.y<=dsize.y; dp.y++){
                sp.y = _sp.y>>12;
                ty = _sp.y&0xFFF;
+               if(nflag)
+                       ty = ty << 1 & 0x1000;
                pdst = pdst0;
                sp.x = sr.min.x;
                psrc0 = byteaddr(src, sp);
@@ -36,6 +40,8 @@ resample(Memimage *dst, Rectangle r, Memimage *src, Rectangle sr)
                for(dp.x=0; dp.x<=dsize.x; dp.x++){
                        sp.x = _sp.x>>12;
                        tx = _sp.x&0xFFF;
+                       if(nflag)
+                               tx = tx << 1 & 0x1000;
                        psrc = psrc0 + sp.x*bpp;
                        s00 = (0x1000-tx)*(0x1000-ty);
                        s01 = tx*(0x1000-ty);
@@ -109,6 +115,9 @@ main(int argc, char **argv)
        case 'y':
                ysize = getsize(EARGF(usage()));
                break;
+       case 'n':
+               nflag++;
+               break;
        default:
                usage();
        }ARGEND
@@ -164,7 +173,7 @@ main(int argc, char **argv)
                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("addocmemimage: %r");
+                       sysfatal("allocmemimage: %r");
                resample(nim, nim->r, im, im->r);
                freememimage(im);
                im = nim;