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WebSVN – planix.SVN – Blame – /os/branches/feature_posix/sys/src/cmd/tcs/font/merge.c – Rev 2

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#include	<u.h>
2 
#include	<libc.h>
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#include	<libg.h>
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#include	<bio.h>
5 
 
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static void usage(void);
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static void snarf(char *, int);
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static void choose(Fontchar *, Bitmap *, int, int, int);
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struct {
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	char *name;
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	Bitmap *bm;
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	Subfont *sf;
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} ft[1024];
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int nf;
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void
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main(int argc, char **argv)
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{
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	int i, errs;
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	Fontchar *fc;
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	Bitmap *b;
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	int nc, ht, as;
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	Subfont *f;
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	binit(0, 0, "font merge");
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	if(argc < 1)
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		usage();
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	nf = argc-1;
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	for(i = 0; i < nf; i++)
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		snarf(argv[i+1], i);
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	nc = ft[0].sf->n;
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	ht = ft[0].sf->height;
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	as = ft[0].sf->ascent;
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	errs = 0;
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	for(i = 0; i < nf; i++){
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		if(nc < ft[i].sf->n) nc = ft[i].sf->n;
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		if(ht != ft[1].sf->height){
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			fprint(2, "%s: %s.height=%d (!= %s.height=%d)\n", argv[0],
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				ft[i].name, ft[i].sf->height, ft[0].name, ht);
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			errs = 1;
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		}
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		if(as != ft[1].sf->ascent){
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			fprint(2, "%s: %s.ascent=%d (!= %s.ascent=%d)\n", argv[0],
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				ft[i].name, ft[i].sf->ascent, ft[0].name, ht);
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			errs = 1;
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		}
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	}
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	if(errs)
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		exits("param mismatch");
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	fc = (Fontchar *)malloc(nc*sizeof(Fontchar));
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	b = balloc(Rect(0, 0, nc*64, ht), ft[0].bm->ldepth);
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	if(b == 0 || fc == 0){
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		fprint(2, "%s: couldn't malloc %d chars\n", argv0, nc);
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		exits("out of memory");
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	}
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	bitblt(b, b->r.min, b, b->r, Zero);
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	choose(fc, b, nc, ht, as);
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	wrbitmapfile(1, b);
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bitblt(&screen, screen.r.min, b, b->r, S); bflush();sleep(5000);
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	f = subfalloc(nc, ht, as, fc, b, ~0, ~0);
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	wrsubfontfile(1, f);
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	exits(0);
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}
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static void
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usage(void)
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{
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	fprint(2, "Usage: %s file ...\n", argv0);
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	exits("usage");
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}
71 
 
72 
static void
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snarf(char *name, int i)
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{
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	int fd;
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	Bitmap *b;
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78 
	ft[i].name = name;
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	if((fd = open(name, OREAD)) < 0){
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		perror(name);
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		exits("font read");
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	}
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	if((b = rdbitmapfile(fd)) == 0){
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		fprint(2, "rdbitmapfile failed\n");
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		exits("font read");
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	}
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	if((ft[i].bm = balloc(b->r, b->ldepth)) == 0){
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		fprint(2, "ballocsnarf failed\n");
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		exits("font read");
90 
	}
91 
	bitblt(ft[i].bm, b->r.min, b, b->r, S);
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	if((ft[i].sf = rdsubfontfile(fd, b)) == 0){
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		fprint(2, "rdsubfontfile failed\n");
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		exits("font read");
95 
	}
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	close(fd);
97 
}
98 
 
99 
static void
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choose(Fontchar *f, Bitmap *b, int nc, int ht, int as)
101 
{
102 
	int j;
103 
	Fontchar *info;
104 
	int lastx = 0;
105 
	int w, n;
106 
 
107 
	for(n = 0; n < nc; n++, f++){
108 
		f->x = lastx;
109 
		for(j = 0; j < nf; j++){
110 
			if(n >= ft[j].sf->n)
111 
				continue;
112 
			info = ft[j].sf->info;
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			if(info[n+1].x != info[n].x)
114 
				goto found;
115 
		}
116 
		continue;
117 
	found:
118 
		f->left = info[n].left;
119 
		f->top = info[n].top;
120 
		f->bottom = info[n].bottom;
121 
		f->width = info[n].width;
122 
		w = info[n+1].x - info[n].x;
123 
		bitblt(b, Pt(0, lastx), ft[j].bm, Rect(0, info[n].x, ht, info[n+1].x), S);
124 
		lastx += w;
125 
	}
126 
	f->x = lastx;
127 
}