332 lines
7.9 KiB
C
332 lines
7.9 KiB
C
/****************************************************************************
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*
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* pfrtypes.h
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*
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* FreeType PFR data structures (specification only).
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*
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* Copyright (C) 2002-2021 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* This file is part of the FreeType project, and may only be used,
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* modified, and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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*/
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#ifndef PFRTYPES_H_
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#define PFRTYPES_H_
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#include <freetype/internal/ftobjs.h>
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FT_BEGIN_HEADER
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/************************************************************************/
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/* the PFR Header structure */
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typedef struct PFR_HeaderRec_
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{
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FT_UInt32 signature;
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FT_UInt version;
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FT_UInt signature2;
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FT_UInt header_size;
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FT_UInt log_dir_size;
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FT_UInt log_dir_offset;
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FT_UInt log_font_max_size;
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FT_UInt32 log_font_section_size;
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FT_UInt32 log_font_section_offset;
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FT_UInt32 phy_font_max_size;
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FT_UInt32 phy_font_section_size;
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FT_UInt32 phy_font_section_offset;
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FT_UInt gps_max_size;
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FT_UInt32 gps_section_size;
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FT_UInt32 gps_section_offset;
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FT_UInt max_blue_values;
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FT_UInt max_x_orus;
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FT_UInt max_y_orus;
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FT_UInt phy_font_max_size_high;
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FT_UInt color_flags;
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FT_UInt32 bct_max_size;
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FT_UInt32 bct_set_max_size;
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FT_UInt32 phy_bct_set_max_size;
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FT_UInt num_phy_fonts;
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FT_UInt max_vert_stem_snap;
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FT_UInt max_horz_stem_snap;
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FT_UInt max_chars;
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} PFR_HeaderRec, *PFR_Header;
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/* used in `color_flags' field of the PFR_Header */
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#define PFR_FLAG_BLACK_PIXEL 0x01U
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#define PFR_FLAG_INVERT_BITMAP 0x02U
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/************************************************************************/
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typedef struct PFR_LogFontRec_
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{
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FT_UInt32 size;
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FT_UInt32 offset;
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FT_Int32 matrix[4];
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FT_UInt stroke_flags;
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FT_Int stroke_thickness;
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FT_Int bold_thickness;
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FT_Int32 miter_limit;
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FT_UInt32 phys_size;
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FT_UInt32 phys_offset;
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} PFR_LogFontRec, *PFR_LogFont;
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#define PFR_LINE_JOIN_MITER 0x00U
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#define PFR_LINE_JOIN_ROUND 0x01U
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#define PFR_LINE_JOIN_BEVEL 0x02U
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#define PFR_LINE_JOIN_MASK ( PFR_LINE_JOIN_ROUND | PFR_LINE_JOIN_BEVEL )
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#define PFR_LOG_STROKE 0x04U
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#define PFR_LOG_2BYTE_STROKE 0x08U
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#define PFR_LOG_BOLD 0x10U
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#define PFR_LOG_2BYTE_BOLD 0x20U
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#define PFR_LOG_EXTRA_ITEMS 0x40U
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/************************************************************************/
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#define PFR_BITMAP_2BYTE_CHARCODE 0x01U
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#define PFR_BITMAP_2BYTE_SIZE 0x02U
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#define PFR_BITMAP_3BYTE_OFFSET 0x04U
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/* not part of the specification but used for implementation */
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#define PFR_BITMAP_CHARCODES_VALIDATED 0x40U
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#define PFR_BITMAP_VALID_CHARCODES 0x80U
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typedef struct PFR_BitmapCharRec_
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{
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FT_UInt char_code;
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FT_UInt gps_size;
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FT_UInt32 gps_offset;
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} PFR_BitmapCharRec, *PFR_BitmapChar;
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#define PFR_STRIKE_2BYTE_XPPM 0x01U
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#define PFR_STRIKE_2BYTE_YPPM 0x02U
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#define PFR_STRIKE_3BYTE_SIZE 0x04U
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#define PFR_STRIKE_3BYTE_OFFSET 0x08U
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#define PFR_STRIKE_2BYTE_COUNT 0x10U
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typedef struct PFR_StrikeRec_
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{
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FT_UInt x_ppm;
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FT_UInt y_ppm;
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FT_UInt flags;
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FT_UInt32 gps_size;
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FT_UInt32 gps_offset;
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FT_UInt32 bct_size;
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FT_UInt32 bct_offset;
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/* optional */
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FT_UInt num_bitmaps;
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PFR_BitmapChar bitmaps;
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} PFR_StrikeRec, *PFR_Strike;
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/************************************************************************/
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typedef struct PFR_CharRec_
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{
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FT_UInt char_code;
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FT_Int advance;
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FT_UInt gps_size;
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FT_UInt32 gps_offset;
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} PFR_CharRec, *PFR_Char;
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/************************************************************************/
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typedef struct PFR_DimensionRec_
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{
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FT_UInt standard;
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FT_UInt num_stem_snaps;
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FT_Int* stem_snaps;
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} PFR_DimensionRec, *PFR_Dimension;
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/************************************************************************/
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typedef struct PFR_KernItemRec_* PFR_KernItem;
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typedef struct PFR_KernItemRec_
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{
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PFR_KernItem next;
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FT_Byte pair_count;
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FT_Byte flags;
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FT_Short base_adj;
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FT_UInt pair_size;
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FT_Offset offset;
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FT_UInt32 pair1;
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FT_UInt32 pair2;
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} PFR_KernItemRec;
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#define PFR_KERN_INDEX( g1, g2 ) \
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( ( (FT_UInt32)(g1) << 16 ) | (FT_UInt16)(g2) )
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#define PFR_KERN_PAIR_INDEX( pair ) \
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PFR_KERN_INDEX( (pair)->glyph1, (pair)->glyph2 )
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#define PFR_NEXT_KPAIR( p ) ( p += 2, \
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( (FT_UInt32)p[-2] << 16 ) | p[-1] )
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/************************************************************************/
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typedef struct PFR_PhyFontRec_
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{
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FT_Memory memory;
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FT_UInt32 offset;
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FT_UInt font_ref_number;
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FT_UInt outline_resolution;
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FT_UInt metrics_resolution;
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FT_BBox bbox;
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FT_UInt flags;
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FT_Int standard_advance;
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FT_Int ascent; /* optional, bbox.yMax if not present */
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FT_Int descent; /* optional, bbox.yMin if not present */
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FT_Int leading; /* optional, 0 if not present */
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PFR_DimensionRec horizontal;
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PFR_DimensionRec vertical;
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FT_String* font_id;
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FT_String* family_name;
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FT_String* style_name;
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FT_UInt num_strikes;
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FT_UInt max_strikes;
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PFR_StrikeRec* strikes;
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FT_UInt num_blue_values;
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FT_Int *blue_values;
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FT_UInt blue_fuzz;
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FT_UInt blue_scale;
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FT_UInt num_chars;
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FT_Offset chars_offset;
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PFR_Char chars;
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FT_UInt num_kern_pairs;
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PFR_KernItem kern_items;
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PFR_KernItem* kern_items_tail;
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/* not part of the spec, but used during load */
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FT_ULong bct_offset;
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FT_Byte* cursor;
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} PFR_PhyFontRec, *PFR_PhyFont;
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#define PFR_PHY_VERTICAL 0x01U
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#define PFR_PHY_2BYTE_CHARCODE 0x02U
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#define PFR_PHY_PROPORTIONAL 0x04U
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#define PFR_PHY_ASCII_CODE 0x08U
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#define PFR_PHY_2BYTE_GPS_SIZE 0x10U
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#define PFR_PHY_3BYTE_GPS_OFFSET 0x20U
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#define PFR_PHY_EXTRA_ITEMS 0x80U
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#define PFR_KERN_2BYTE_CHAR 0x01U
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#define PFR_KERN_2BYTE_ADJ 0x02U
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/************************************************************************/
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#define PFR_GLYPH_YCOUNT 0x01U
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#define PFR_GLYPH_XCOUNT 0x02U
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#define PFR_GLYPH_1BYTE_XYCOUNT 0x04U
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#define PFR_GLYPH_SINGLE_EXTRA_ITEMS 0x08U
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#define PFR_GLYPH_COMPOUND_EXTRA_ITEMS 0x40U
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#define PFR_GLYPH_IS_COMPOUND 0x80U
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/* controlled coordinate */
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typedef struct PFR_CoordRec_
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{
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FT_UInt org;
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FT_UInt cur;
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} PFR_CoordRec, *PFR_Coord;
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typedef struct PFR_SubGlyphRec_
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{
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FT_Fixed x_scale;
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FT_Fixed y_scale;
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FT_Int x_delta;
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FT_Int y_delta;
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FT_UInt32 gps_offset;
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FT_UInt gps_size;
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} PFR_SubGlyphRec, *PFR_SubGlyph;
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#define PFR_SUBGLYPH_XSCALE 0x10U
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#define PFR_SUBGLYPH_YSCALE 0x20U
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#define PFR_SUBGLYPH_2BYTE_SIZE 0x40U
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#define PFR_SUBGLYPH_3BYTE_OFFSET 0x80U
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typedef struct PFR_GlyphRec_
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{
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FT_Byte format;
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#if 0
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FT_UInt num_x_control;
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FT_UInt num_y_control;
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#endif
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FT_UInt max_xy_control;
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FT_Pos* x_control;
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FT_Pos* y_control;
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FT_UInt num_subs;
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FT_UInt max_subs;
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PFR_SubGlyphRec* subs;
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FT_GlyphLoader loader;
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FT_Bool path_begun;
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} PFR_GlyphRec, *PFR_Glyph;
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FT_END_HEADER
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#endif /* PFRTYPES_H_ */
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/* END */
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