ref: 1018d7a7091fd5e0433f501a3474cdc3fec322cc
dir: /libdraw/readsubfont.c/
#include "lib9.h" #include "kernel.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|2); if(i == nil) return nil; } if(libreadn(fd, hdr, 3*12) != 3*12){ if(ai == nil) freeimage(i); kwerrstr("rdsubfonfile: header read error: %r"); return nil; } n = atoi(hdr); p = malloc(6*(n+1)); if(p == nil) return nil; if(libreadn(fd, p, 6*(n+1)) != 6*(n+1)){ kwerrstr("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); }