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author | rsc <devnull@localhost> | 2003-09-30 17:47:42 +0000 |
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committer | rsc <devnull@localhost> | 2003-09-30 17:47:42 +0000 |
commit | 76193d7cb0457807b2f0b95f909ab5de19480cd7 (patch) | |
tree | 97e538c7e38181431e90289a0fe8b6b7ce1f8f3c /src/libdraw/readsubfont.c | |
parent | ed7c8e8d02c02bdbff1e88a6d8d1419f39af48ad (diff) | |
download | plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.tar.gz plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.tar.bz2 plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.zip |
Initial revision
Diffstat (limited to 'src/libdraw/readsubfont.c')
-rw-r--r-- | src/libdraw/readsubfont.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/libdraw/readsubfont.c b/src/libdraw/readsubfont.c new file mode 100644 index 00000000..0e587b48 --- /dev/null +++ b/src/libdraw/readsubfont.c @@ -0,0 +1,58 @@ +#include <u.h> +#include <libc.h> +#include <draw.h> + +Subfont* +readsubfonti(Display*d, char *name, int fd, Image *ai, int dolock) +{ + char hdr[3*12+4+1]; + int n; + uchar *p; + Fontchar *fc; + Subfont *f; + Image *i; + + i = ai; + if(i == nil){ + i = readimage(d, fd, dolock); + if(i == nil) + return nil; + } + if(read(fd, hdr, 3*12) != 3*12){ + if(ai == nil) + freeimage(i); + werrstr("rdsubfonfile: header read error: %r"); + return nil; + } + n = atoi(hdr); + p = malloc(6*(n+1)); + if(p == nil) + return nil; + if(read(fd, p, 6*(n+1)) != 6*(n+1)){ + werrstr("rdsubfonfile: fontchar read error: %r"); + Err: + free(p); + return nil; + } + fc = malloc(sizeof(Fontchar)*(n+1)); + if(fc == nil) + goto Err; + _unpackinfo(fc, p, n); + if(dolock) + lockdisplay(d); + f = allocsubfont(name, n, atoi(hdr+12), atoi(hdr+24), fc, i); + if(dolock) + unlockdisplay(d); + if(f == nil){ + free(fc); + goto Err; + } + free(p); + return f; +} + +Subfont* +readsubfont(Display*d, char *name, int fd, int dolock) +{ + return readsubfonti(d, name, fd, nil, dolock); +} |