diff options
Diffstat (limited to 'src/cmd/jpg/png.c')
| -rw-r--r-- | src/cmd/jpg/png.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/cmd/jpg/png.c b/src/cmd/jpg/png.c index d653fe6a..a815abfc 100644 --- a/src/cmd/jpg/png.c +++ b/src/cmd/jpg/png.c @@ -44,6 +44,13 @@ eresized(int new) } void +usage(void) +{ + fprint(2, "usage: png -39cdekrtv -W winsize [file.png ...]\n"); + exits("usage"); +} + +void main(int argc, char *argv[]) { int fd, i; @@ -51,6 +58,9 @@ main(int argc, char *argv[]) char buf[12+1]; ARGBEGIN{ + case 'W': + winsize = EARGF(usage()); + break; case 'c': /* produce encoded, compressed, bitmap file; no display by default */ cflag++; dflag++; @@ -96,8 +106,7 @@ main(int argc, char *argv[]) outchan = CMAP8; break; default: - fprint(2, "usage: png -39cdekrtv [file.png ...]\n"); - exits("usage"); + usage(); }ARGEND; if(dflag==0 && colorspace==CYCbCr){ /* see if we should convert right to RGB */ |