1 files changed, 92 insertions, 0 deletions
diff --git a/fontembed/embed.h b/fontembed/embed.h
new file mode 100644
index 000000000..682471f45
--- /dev/null
+++ b/fontembed/embed.h
@@ -0,0 +1,92 @@
+#ifndef EMBED_H
+#define EMBED_H
+
+#include "bitset.h"
+#include "fontfile.h"
+#include "iofn.h"
+
+typedef enum { EMB_FMT_T1,       // type1, with AFM/PFM,PFA/PFB
+               EMB_FMT_TTF,      // sfnt, for TTF(glyf)
+               EMB_FMT_OTF,      // sfnt+cff, for OTF(cff)
+               EMB_FMT_CFF,      // cff, for raw CFF
+               EMB_FMT_STDFONT   // don't embed (already present)
+               } EMB_FORMAT;
+typedef enum { EMB_DEST_NATIVE,  // just subsetting/conversion
+               EMB_DEST_PS,
+//               EMB_DEST_PS2,
+//               EMB_DEST_PDF13,
+               EMB_DEST_PDF16
+               } EMB_DESTINATION;
+
+typedef enum { EMB_RIGHT_FULL=0, EMB_RIGHT_NONE=0x02,
+               EMB_RIGHT_READONLY=0x04,
+               EMB_RIGHT_NO_SUBSET=0x0100,
+               EMB_RIGHT_BITMAPONLY=0x0200 } EMB_RIGHT_TYPE;
+
+typedef enum { EMB_A_MULTIBYTE=0x01,    // embedd as multibyte font?
+               EMB_A_SUBSET=0x02,       // do subsetting?
+               EMB_A_T1_TO_CFF=0x04,    // convert Type1 to CFF?
+               EMB_A_CFF_TO_OTF=0x08,   // wrap CFF(from input or T1+CONVERT_CFF) in sfnt? (OTF)
+               EMB_A_OTF_TO_CFF=0x10,   // unwrap CFF
+
+               EMB_A_CLOSE_FONTFILE=0x8000
+               } EMB_ACTIONS;
+
+typedef enum { EMB_C_MUST_SUBSET=0x01,     // (fail, when not possible)
+               EMB_C_EDITABLE_SUBSET=0x02, // (...)
+               EMB_C_NEVER_SUBSET=0x04,    // (...)
+
+               EMB_C_FORCE_MULTIBYTE=0x08, // always use multibyte fonts
+
+               EMB_C_PDF_OT=0x10, // output TTF/OTF (esp. CFF to OTF)
+               EMB_C_KEEP_T1=0x20, // don't convert T1 to CFF
+
+               EMB_C_TAKE_FONTFILE=0x8000 // take ownership of fontfile
+               } EMB_CONSTRAINTS;
+
+typedef struct _EMB_PARAMS {
+  EMB_FORMAT intype;
+  EMB_FORMAT outtype;
+  EMB_DESTINATION dest;
+
+  EMB_ACTIONS plan;
+
+  // font infos
+  FONTFILE *font;
+  EMB_RIGHT_TYPE rights;
+// public:
+  BITSET subset;
+
+} EMB_PARAMS;
+
+EMB_PARAMS *emb_new(FONTFILE *font,EMB_DESTINATION dest,EMB_CONSTRAINTS mode);
+// emb_embedd does only the "binary" part
+int emb_embed(EMB_PARAMS *emb,OUTPUT_FN output,void *context); // returns number of bytes written
+void emb_close(EMB_PARAMS *emb);
+
+// TODO: encoding, TODO: ToUnicode
+static inline void emb_set(EMB_PARAMS *emb,int unicode,unsigned short gid) // {{{
+{
+  if (emb->subset) {
+    if (emb->plan&EMB_A_MULTIBYTE) {
+      bit_set(emb->subset,gid);
+      // ToUnicode.add(gid,unicode);
+    } else {
+      // TODO ... encoding
+    }
+  }
+}
+// }}}
+
+// TODO: encoding?, TODO: non-sfnt
+static inline unsigned short emb_get(EMB_PARAMS *emb,int unicode) // {{{ gid
+{
+  const unsigned short gid=otf_from_unicode(emb->font->sfnt,unicode);
+  emb_set(emb,unicode,gid);
+  return gid;
+}
+// }}}
+
+#include "embed_pdf.h"
+
+#endif