70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
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/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <libc.h>
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#include <draw.h>
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Subfont*
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readsubfonti(Display*d, char *name, int fd, Image *ai, int dolock)
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{
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char hdr[3*12+4+1];
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int n;
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uint8_t *p;
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Fontchar *fc;
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Subfont *f;
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Image *i;
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i = ai;
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if(i == nil){
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i = readimage(d, fd, dolock);
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if(i == nil)
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return nil;
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}
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if(read(fd, hdr, 3*12) != 3*12){
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if(ai == nil)
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freeimage(i);
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werrstr("rdsubfonfile: header read error: %r");
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return nil;
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}
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n = atoi(hdr);
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p = malloc(6*(n+1));
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if(p == nil)
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goto Err;
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if(read(fd, p, 6*(n+1)) != 6*(n+1)){
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werrstr("rdsubfonfile: fontchar read error: %r");
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Err:
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if(ai == nil)
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freeimage(i);
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free(p);
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return nil;
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}
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fc = malloc(sizeof(Fontchar)*(n+1));
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if(fc == nil)
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goto Err;
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_unpackinfo(fc, p, n);
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if(dolock)
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lockdisplay(d);
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f = allocsubfont(name, n, atoi(hdr+12), atoi(hdr+24), fc, i);
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if(dolock)
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unlockdisplay(d);
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if(f == nil){
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free(fc);
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goto Err;
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}
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free(p);
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return f;
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}
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Subfont*
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readsubfont(Display *d, char *name, int fd, int dolock)
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{
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return readsubfonti(d, name, fd, nil, dolock);
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}
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