void emb_otf_get_pdf_fontdescr(OTF_FILE *otf,EMB_PDF_FONTDESCR *ret) // {{{
{
int len;
// TODO
// ... fill in struct
char *head=otf_get_table(otf,OTF_TAG('h','e','a','d'),&len);
assert(head); // version is 1.0 from otf_load
ret->bbxmin=get_SHORT(head+36)*1000/otf->unitsPerEm;
ret->bbymin=get_SHORT(head+38)*1000/otf->unitsPerEm;
ret->bbxmax=get_SHORT(head+40)*1000/otf->unitsPerEm;
ret->bbymax=get_SHORT(head+42)*1000/otf->unitsPerEm;
const int macStyle=get_USHORT(head+44);
free(head);
char *post=otf_get_table(otf,OTF_TAG('p','o','s','t'),&len);
assert(post);
const unsigned int post_version=get_ULONG(post);
// check length
assert( (post_version!=0x00010000)||(len==32) );
assert( (post_version!=0x00020000)||(len>=34+2*otf->numGlyphs) );
assert( (post_version!=0x00025000)||(len==35+otf->numGlyphs) );
assert( (post_version!=0x00030000)||(len==32) );
assert( (post_version!=0x00020000)||(get_USHORT(post+32)==otf->numGlyphs) );
// assert( (post_version==0x00030000)==(!!(otf->flags&OTF_F_FMT_CFF)) ); // ghostscript embedding does this..
// TODO: v4 (apple) : uint16 reencoding[numGlyphs]
if ( (post_version==0x00010000)||
(post_version==0x00020000)||
(post_version==0x00025000)||
(post_version==0x00030000) ) {
ret->italicAngle=get_LONG(post+4)>>16;
if (get_ULONG(post+12)>0) { // monospaced
ret->flags|=1;
}
} else {
// include components (set bit in >glyphs) of currently loaded compound glyph (with >curgid)
// returns additional space requirements (when bits below >donegid are touched)
static int otf_subset_glyf(OTF_FILE *otf,int curgid,int donegid,BITSET glyphs) // {{{
{
int ret=0;
if (get_SHORT(otf->gly)>=0) { // not composite
return ret; // done
}
char *cur=otf->gly+10;
unsigned short flags;
do {
flags=get_USHORT(cur);
const unsigned short sub_gid=get_USHORT(cur+2);
assert(sub_gid<otf->numGlyphs);
if (!bit_check(glyphs,sub_gid)) {
// bad: temporarily load sub glyph
const int len=otf_get_glyph(otf,sub_gid);
assert(len>0);
bit_set(glyphs,sub_gid);
if (sub_gid<donegid) {
ret+=len;
ret+=otf_subset_glyf(otf,sub_gid,donegid,glyphs); // composite of composites?, e.g. in DejaVu
}
const int res=otf_get_glyph(otf,curgid); // reload current glyph
assert(res);
}
// skip parameters
cur+=6;
if (flags&0x01) {
cur+=2;
}
if (flags&0x08) {
cur+=2;
} else if (flags&0x40) {
cur+=4;
} else if (flags&0x80) {
cur+=8;
}
} while (flags&0x20); // more components
return ret;
}
