diff options
Diffstat (limited to 'src/libdraw/md-defont.c')
-rw-r--r-- | src/libdraw/md-defont.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/libdraw/md-defont.c b/src/libdraw/md-defont.c new file mode 100644 index 00000000..446c2e93 --- /dev/null +++ b/src/libdraw/md-defont.c @@ -0,0 +1,68 @@ +#include <u.h> +#include <libc.h> +#include <draw.h> +#include <memdraw.h> + +Memsubfont* +getmemdefont(void) +{ + char *hdr, *p; + int n; + Fontchar *fc; + Memsubfont *f; + int ld; + Rectangle r; + Memdata *md; + Memimage *i; + + /* + * make sure data is word-aligned. this is true with Plan 9 compilers + * but not in general. the byte order is right because the data is + * declared as char*, not u32int*. + */ + p = (char*)defontdata; + n = (u32int)p & 3; + if(n != 0){ + memmove(p+(4-n), p, sizeofdefont-n); + p += 4-n; + } + ld = atoi(p+0*12); + r.min.x = atoi(p+1*12); + r.min.y = atoi(p+2*12); + r.max.x = atoi(p+3*12); + r.max.y = atoi(p+4*12); + + md = mallocz(sizeof(Memdata), 1); + if(md == nil) + return nil; + + p += 5*12; + + md->base = nil; /* so freememimage doesn't free p */ + md->bdata = (uchar*)p; /* ick */ + md->ref = 1; + md->allocd = 1; /* so freememimage does free md */ + + i = allocmemimaged(r, drawld2chan[ld], md, nil); + if(i == nil){ + free(md); + return nil; + } + + hdr = p+Dy(r)*i->width*sizeof(u32int); + n = atoi(hdr); + p = hdr+3*12; + fc = malloc(sizeof(Fontchar)*(n+1)); + if(fc == 0){ + freememimage(i); + return 0; + } + _unpackinfo(fc, (uchar*)p, n); + f = allocmemsubfont("*default*", n, atoi(hdr+12), atoi(hdr+24), fc, i); + if(f == 0){ + freememimage(i); + free(fc); + return 0; + } + return f; +} |