/* Copyright (C) 2001-2020 Artifex Software, Inc.
   All Rights Reserved.

   This software is provided AS-IS with no warranty, either express or
   implied.

   This software is distributed under license and may not be copied,
   modified or distributed except as expressly authorized under the terms
   of the license contained in the file LICENSE in this distribution.

   Refer to licensing information at http://www.artifex.com or contact
   Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,
   CA 94945, U.S.A., +1(415)492-9861, for further information.
*/


/* A bridge to True Type interpreter. */

#ifndef gxttfb_INCLUDED
#  define gxttfb_INCLUDED

#include "ttfoutl.h"
#include "gxfont.h"
#include "gslibctx.h"
#include "gsgcache.h"
#include "gxfcache.h"

struct gx_ttfReader_s {
    ttfReader super;
    int pos;
    int error;
    int extra_glyph_index;
    gs_font_type42 *pfont;
    gs_memory_t *memory;
    gs_glyph_data_t glyph_data;
    /*  When TT interpreter is invoked, a font and the TT interpreter instance
        may use different memory allocators (local and global correspondingly).
        Since we don't want to change Free Type function prototypes,
        we place the gx_ttfReader instance into the global memory,
        to provide an access to it through TExecution_Context.
        Due to that, the fields 'pfont' and 'glyph_data' may contain pointers from global
        to local memory. They must be NULL when a garbager is invoked.
        We reset them whan the TT interpreter exits.
     */
};

gx_ttfReader *gx_ttfReader__create(gs_memory_t *mem);
void gx_ttfReader__destroy(gx_ttfReader *this);
void gx_ttfReader__set_font(gx_ttfReader *this, gs_font_type42 *pfont);
ttfFont *ttfFont__create(gs_font_dir *dir);
void ttfFont__destroy(ttfFont *this, gs_font_dir *dir);
int ttfFont__Open_aux(ttfFont *this, ttfInterpreter *tti, gx_ttfReader *r, gs_font_type42 *pfont,
               const gs_matrix * char_tm, const gs_log2_scale_point *log2_scale,
               bool design_grid);
int gx_ttf_outline(ttfFont *ttf, gx_ttfReader *r, gs_font_type42 *pfont, int glyph_index,
        const gs_matrix *m, const gs_log2_scale_point * pscale,
        gx_path *path, bool grid_fit);

#endif /* gxttfb_INCLUDED */
