71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/*
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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 <lib9.h>
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#include <draw.h>
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Subfont*
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getdefont(Display *d)
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{
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char *hdr, *p;
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int n;
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Fontchar *fc;
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Subfont *f;
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int ld;
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Rectangle r;
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Image *i;
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/*
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* make sure data is word-aligned. this is true with Plan 9 compilers
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* but not in general. the byte order is right because the data is
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* declared as char*, not ulong*.
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*/
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p = (char*)defontdata;
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n = (int)(uint64_t)p & 3; /* stupid ape */
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if(n != 0){
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memmove(p+(4-n), p, sizeofdefont-n);
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p += 4-n;
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}
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ld = atoi(p+0*12);
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r.min.x = atoi(p+1*12);
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r.min.y = atoi(p+2*12);
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r.max.x = atoi(p+3*12);
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r.max.y = atoi(p+4*12);
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i = allocimage(d, r, drawld2chan[ld], 0, 0);
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if(i == 0)
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return 0;
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p += 5*12;
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n = loadimage(i, r, (uint8_t*)p,
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(defontdata+sizeofdefont)-(uint8_t*)p);
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if(n < 0){
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freeimage(i);
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return 0;
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}
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hdr = p+n;
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n = atoi(hdr);
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p = hdr+3*12;
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fc = malloc(sizeof(Fontchar)*(n+1));
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if(fc == 0){
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freeimage(i);
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return 0;
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}
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_unpackinfo(fc, (uint8_t*)p, n);
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f = allocsubfont("*default*", n, atoi(hdr+12), atoi(hdr+24), fc, i);
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if(f == 0){
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freeimage(i);
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free(fc);
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return 0;
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}
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return f;
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}
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