2259f3fb9a
it is possible to have fonts belong to different or no display, so the check for defaultsubfont has to be against font->display, not the global display variable. remove unused freeup() routine. handle strdup() error in allocsubfont() and realloc() error in buildfont().
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
#include <u.h>
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#include <libc.h>
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#include <draw.h>
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/*
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* Cobble fake font using existing subfont
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*/
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Font*
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mkfont(Subfont *subfont, Rune min)
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{
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Font *font;
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Cachefont *c;
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font = malloc(sizeof(Font));
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if(font == nil)
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return nil;
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memset(font, 0, sizeof(Font));
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font->display = subfont->bits->display;
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font->name = strdup("<synthetic>");
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font->ncache = NFCACHE+NFLOOK;
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font->nsubf = NFSUBF;
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font->cache = malloc(font->ncache * sizeof(font->cache[0]));
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font->subf = malloc(font->nsubf * sizeof(font->subf[0]));
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if(font->name==nil || font->cache==nil || font->subf==nil){
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Err:
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free(font->name);
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free(font->cache);
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free(font->subf);
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free(font->sub);
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free(font);
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return 0;
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}
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memset(font->cache, 0, font->ncache*sizeof(font->cache[0]));
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memset(font->subf, 0, font->nsubf*sizeof(font->subf[0]));
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font->height = subfont->height;
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font->ascent = subfont->ascent;
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font->age = 1;
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font->sub = malloc(sizeof(Cachefont*));
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if(font->sub == nil)
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goto Err;
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c = malloc(sizeof(Cachefont));
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if(c == nil)
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goto Err;
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font->nsub = 1;
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font->sub[0] = c;
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c->min = min;
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c->max = min+subfont->n-1;
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c->offset = 0;
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c->name = nil; /* noticed by agefont() */
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c->subfontname = nil;
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font->subf[0].age = 0;
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font->subf[0].cf = c;
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font->subf[0].f = subfont;
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return font;
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}
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