/***************************************************************************/
/*                                                                         */
/*  pfrtypes.h                                                             */
/*                                                                         */
/*    FreeType PFR data structures (specification only).                   */
/*                                                                         */
/*  Copyright 2002-2015 by                                                 */
/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


#ifndef __PFRTYPES_H__
#define __PFRTYPES_H__

#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H

FT_BEGIN_HEADER

  /************************************************************************/

  /* the PFR Header structure */
  typedef struct  PFR_HeaderRec_
  {
    FT_UInt32  signature;
    FT_UInt    version;
    FT_UInt    signature2;
    FT_UInt    header_size;

    FT_UInt    log_dir_size;
    FT_UInt    log_dir_offset;

    FT_UInt    log_font_max_size;
    FT_UInt32  log_font_section_size;
    FT_UInt32  log_font_section_offset;

    FT_UInt32  phy_font_max_size;
    FT_UInt32  phy_font_section_size;
    FT_UInt32  phy_font_section_offset;

    FT_UInt    gps_max_size;
    FT_UInt32  gps_section_size;
    FT_UInt32  gps_section_offset;

    FT_UInt    max_blue_values;
    FT_UInt    max_x_orus;
    FT_UInt    max_y_orus;

    FT_UInt    phy_font_max_size_high;
    FT_UInt    color_flags;

    FT_UInt32  bct_max_size;
    FT_UInt32  bct_set_max_size;
    FT_UInt32  phy_bct_set_max_size;

    FT_UInt    num_phy_fonts;
    FT_UInt    max_vert_stem_snap;
    FT_UInt    max_horz_stem_snap;
    FT_UInt    max_chars;

  } PFR_HeaderRec, *PFR_Header;


  /* used in `color_flags' field of the PFR_Header */
  typedef enum  PFR_HeaderFlags_
  {
    PFR_FLAG_BLACK_PIXEL   = 1,
    PFR_FLAG_INVERT_BITMAP = 2

  } PFR_HeaderFlags;


  /************************************************************************/

  typedef struct  PFR_LogFontRec_
  {
    FT_UInt32  size;
    FT_UInt32  offset;

    FT_Int32   matrix[4];
    FT_UInt    stroke_flags;
    FT_Int     stroke_thickness;
    FT_Int     bold_thickness;
    FT_Int32   miter_limit;

    FT_UInt32  phys_size;
    FT_UInt32  phys_offset;

  } PFR_LogFontRec, *PFR_LogFont;


  typedef enum  PFR_LogFlags_
  {
    PFR_LOG_EXTRA_ITEMS  = 0x40,
    PFR_LOG_2BYTE_BOLD   = 0x20,
    PFR_LOG_BOLD         = 0x10,
    PFR_LOG_2BYTE_STROKE = 8,
    PFR_LOG_STROKE       = 4,
    PFR_LINE_JOIN_MASK   = 3

  } PFR_LogFlags;


  typedef enum  PFR_LineJoinFlags_
  {
    PFR_LINE_JOIN_MITER = 0,
    PFR_LINE_JOIN_ROUND = 1,
    PFR_LINE_JOIN_BEVEL = 2

  } PFR_LineJoinFlags;


  /************************************************************************/

  typedef enum  PFR_BitmapFlags_
  {
    PFR_BITMAP_3BYTE_OFFSET   = 4,
    PFR_BITMAP_2BYTE_SIZE     = 2,
    PFR_BITMAP_2BYTE_CHARCODE = 1

  } PFR_BitmapFlags;


  typedef struct  PFR_BitmapCharRec_
  {
    FT_UInt    char_code;
    FT_UInt    gps_size;
    FT_UInt32  gps_offset;

  } PFR_BitmapCharRec, *PFR_BitmapChar;


  typedef enum  PFR_StrikeFlags_
  {
    PFR_STRIKE_2BYTE_COUNT  = 0x10,
    PFR_STRIKE_3BYTE_OFFSET = 0x08,
    PFR_STRIKE_3BYTE_SIZE   = 0x04,
    PFR_STRIKE_2BYTE_YPPM   = 0x02,
    PFR_STRIKE_2BYTE_XPPM   = 0x01

  } PFR_StrikeFlags;


  typedef struct  PFR_StrikeRec_
  {
    FT_UInt         x_ppm;
    FT_UInt         y_ppm;
    FT_UInt         flags;

    FT_UInt32       gps_size;
    FT_UInt32       gps_offset;

    FT_UInt32       bct_size;
    FT_UInt32       bct_offset;

    /* optional */
    FT_UInt         num_bitmaps;
    PFR_BitmapChar  bitmaps;

  } PFR_StrikeRec, *PFR_Strike;


  /************************************************************************/

  typedef struct  PFR_CharRec_
  {
    FT_UInt    char_code;
    FT_Int     advance;
    FT_UInt    gps_size;
    FT_UInt32  gps_offset;

  } PFR_CharRec, *PFR_Char;


  /************************************************************************/

  typedef struct  PFR_DimensionRec_
  {
    FT_UInt  standard;
    FT_UInt  num_stem_snaps;
    FT_Int*  stem_snaps;

  } PFR_DimensionRec, *PFR_Dimension;

  /************************************************************************/

  typedef struct PFR_KernItemRec_*  PFR_KernItem;

  typedef struct  PFR_KernItemRec_
  {
    PFR_KernItem  next;
    FT_Byte       pair_count;
    FT_Byte       flags;
    FT_Short      base_adj;
    FT_UInt       pair_size;
    FT_Offset     offset;
    FT_UInt32     pair1;
    FT_UInt32     pair2;

  } PFR_KernItemRec;


#define PFR_KERN_INDEX( g1, g2 )                          \
          ( ( (FT_UInt32)(g1) << 16 ) | (FT_UInt16)(g2) )

#define PFR_KERN_PAIR_INDEX( pair )                        \
          PFR_KERN_INDEX( (pair)->glyph1, (pair)->glyph2 )

#define PFR_NEXT_KPAIR( p )  ( p += 2,                              \
                               ( (FT_UInt32)p[-2] << 16 ) | p[-1] )


  /************************************************************************/

  typedef struct  PFR_PhyFontRec_
  {
    FT_Memory          memory;
    FT_UInt32          offset;

    FT_UInt            font_ref_number;
    FT_UInt            outline_resolution;
    FT_UInt            metrics_resolution;
    FT_BBox            bbox;
    FT_UInt            flags;
    FT_Int             standard_advance;

    FT_Int             ascent;   /* optional, bbox.yMax if not present */
    FT_Int             descent;  /* optional, bbox.yMin if not present */
    FT_Int             leading;  /* optional, 0 if not present         */

    PFR_DimensionRec   horizontal;
    PFR_DimensionRec   vertical;

    FT_String*         font_id;
    FT_String*         family_name;
    FT_String*         style_name;

    FT_UInt            num_strikes;
    FT_UInt            max_strikes;
    PFR_StrikeRec*     strikes;

    FT_UInt            num_blue_values;
    FT_Int            *blue_values;
    FT_UInt            blue_fuzz;
    FT_UInt            blue_scale;

    FT_UInt            num_chars;
    FT_Offset          chars_offset;
    PFR_Char           chars;

    FT_UInt            num_kern_pairs;
    PFR_KernItem       kern_items;
    PFR_KernItem*      kern_items_tail;

    /* not part of the spec, but used during load */
    FT_ULong           bct_offset;
    FT_Byte*           cursor;

  } PFR_PhyFontRec, *PFR_PhyFont;


  typedef enum  PFR_PhyFlags_
  {
    PFR_PHY_EXTRA_ITEMS      = 0x80,
    PFR_PHY_3BYTE_GPS_OFFSET = 0x20,
    PFR_PHY_2BYTE_GPS_SIZE   = 0x10,
    PFR_PHY_ASCII_CODE       = 0x08,
    PFR_PHY_PROPORTIONAL     = 0x04,
    PFR_PHY_2BYTE_CHARCODE   = 0x02,
    PFR_PHY_VERTICAL         = 0x01

  } PFR_PhyFlags;


  typedef enum PFR_KernFlags_
  {
    PFR_KERN_2BYTE_CHAR  = 0x01,
    PFR_KERN_2BYTE_ADJ   = 0x02

  } PFR_KernFlags;


  /************************************************************************/

  typedef enum  PFR_GlyphFlags_
  {
    PFR_GLYPH_IS_COMPOUND   = 0x80,
    PFR_GLYPH_EXTRA_ITEMS   = 0x08,
    PFR_GLYPH_1BYTE_XYCOUNT = 0x04,
    PFR_GLYPH_XCOUNT        = 0x02,
    PFR_GLYPH_YCOUNT        = 0x01

  } PFR_GlyphFlags;


  /* controlled coordinate */
  typedef struct  PFR_CoordRec_
  {
    FT_UInt  org;
    FT_UInt  cur;

  } PFR_CoordRec, *PFR_Coord;


  typedef struct  PFR_SubGlyphRec_
  {
    FT_Fixed   x_scale;
    FT_Fixed   y_scale;
    FT_Int     x_delta;
    FT_Int     y_delta;
    FT_UInt32  gps_offset;
    FT_UInt    gps_size;

  } PFR_SubGlyphRec, *PFR_SubGlyph;


  typedef enum  PFR_SubgGlyphFlags_
  {
    PFR_SUBGLYPH_3BYTE_OFFSET = 0x80,
    PFR_SUBGLYPH_2BYTE_SIZE   = 0x40,
    PFR_SUBGLYPH_YSCALE       = 0x20,
    PFR_SUBGLYPH_XSCALE       = 0x10

  } PFR_SubGlyphFlags;


  typedef struct  PFR_GlyphRec_
  {
    FT_Byte           format;

#if 0
    FT_UInt           num_x_control;
    FT_UInt           num_y_control;
#endif
    FT_UInt           max_xy_control;
    FT_Pos*           x_control;
    FT_Pos*           y_control;


    FT_UInt           num_subs;
    FT_UInt           max_subs;
    PFR_SubGlyphRec*  subs;

    FT_GlyphLoader    loader;
    FT_Bool           path_begun;

  } PFR_GlyphRec, *PFR_Glyph;


FT_END_HEADER

#endif /* __PFRTYPES_H__ */


/* END */