apdf/freetype2/pcf/pcf.h

   1 /*  pcf.h
   2
   3   FreeType font driver for pcf fonts
   4
   5   Copyright (C) 2000-2001, 2002 by
   6   Francesco Zappa Nardelli
   7
   8 Permission is hereby granted, free of charge, to any person obtaining a copy
   9 of this software and associated documentation files (the "Software"), to deal
  10 in the Software without restriction, including without limitation the rights
  11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 copies of the Software, and to permit persons to whom the Software is
  13 furnished to do so, subject to the following conditions:
  14
  15 The above copyright notice and this permission notice shall be included in
  16 all copies or substantial portions of the Software.
  17
  18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  21 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24 THE SOFTWARE.
  25 */
  26
  27
  28 #ifndef __PCF_H__
  29 #define __PCF_H__
  30
  31
  32 #include <ft2build.h>
  33 #include FT_INTERNAL_DRIVER_H
  34
  35
  36 FT_BEGIN_HEADER
  37
  38   typedef struct  PCF_TableRec_
  39   {
  40     FT_ULong  type;
  41     FT_ULong  format;
  42     FT_ULong  size;
  43     FT_ULong  offset;
  44
  45   } PCF_TableRec, *PCF_Table;
  46
  47
  48   typedef struct  PCF_TocRec_
  49   {
  50     FT_ULong   version;
  51     FT_ULong   count;
  52     PCF_Table  tables;
  53
  54   } PCF_TocRec, *PCF_Toc;
  55
  56
  57   typedef struct  PCF_ParsePropertyRec_
  58   {
  59     FT_Long  name;
  60     FT_Byte  isString;
  61     FT_Long  value;
  62
  63   } PCF_ParsePropertyRec, *PCF_ParseProperty;
  64
  65
  66   typedef struct  PCF_PropertyRec_
  67   {
  68     FT_String*  name;
  69     FT_Byte     isString;
  70
  71     union
  72     {
  73       FT_String*  atom;
  74       FT_Long     integer;
  75       FT_ULong    cardinal;
  76
  77     } value;
  78
  79   } PCF_PropertyRec, *PCF_Property;
  80
  81
  82   typedef struct  PCF_Compressed_MetricRec_
  83   {
  84     FT_Byte  leftSideBearing;
  85     FT_Byte  rightSideBearing;
  86     FT_Byte  characterWidth;
  87     FT_Byte  ascent;
  88     FT_Byte  descent;
  89
  90   } PCF_Compressed_MetricRec, *PCF_Compressed_Metric;
  91
  92
  93   typedef struct  PCF_MetricRec_
  94   {
  95     FT_Short  leftSideBearing;
  96     FT_Short  rightSideBearing;
  97     FT_Short  characterWidth;
  98     FT_Short  ascent;
  99     FT_Short  descent;
 100     FT_Short  attributes;
 101     FT_ULong  bits;
 102
 103   } PCF_MetricRec, *PCF_Metric;
 104
 105
 106   typedef struct  PCF_AccelRec_
 107   {
 108     FT_Byte        noOverlap;
 109     FT_Byte        constantMetrics;
 110     FT_Byte        terminalFont;
 111     FT_Byte        constantWidth;
 112     FT_Byte        inkInside;
 113     FT_Byte        inkMetrics;
 114     FT_Byte        drawDirection;
 115     FT_Long        fontAscent;
 116     FT_Long        fontDescent;
 117     FT_Long        maxOverlap;
 118     PCF_MetricRec  minbounds;
 119     PCF_MetricRec  maxbounds;
 120     PCF_MetricRec  ink_minbounds;
 121     PCF_MetricRec  ink_maxbounds;
 122
 123   } PCF_AccelRec, *PCF_Accel;
 124
 125
 126   typedef struct  PCD_EncodingRec_
 127   {
 128     FT_Long   enc;
 129     FT_Short  glyph;
 130
 131   } PCF_EncodingRec, *PCF_Encoding;
 132
 133
 134   typedef struct  PCF_FaceRec_
 135   {
 136     FT_FaceRec     root;
 137
 138     char*          charset_encoding;
 139     char*          charset_registry;
 140
 141     PCF_TocRec     toc;
 142     PCF_AccelRec   accel;
 143
 144     int            nprops;
 145     PCF_Property   properties;
 146
 147     FT_Long        nmetrics;
 148     PCF_Metric     metrics;
 149     FT_Long        nencodings;
 150     PCF_Encoding   encodings;
 151
 152     FT_Short       defaultChar;
 153
 154     FT_ULong       bitmapsFormat;
 155
 156     FT_CharMap     charmap_handle;
 157     FT_CharMapRec  charmap;  /* a single charmap per face */
 158
 159   } PCF_FaceRec, *PCF_Face;
 160
 161
 162   /* macros for pcf font format */
 163
 164 #define LSBFirst  0
 165 #define MSBFirst  1
 166
 167 #define PCF_FILE_VERSION        ( ( 'p' << 24 ) | \
 168                                   ( 'c' << 16 ) | \
 169                                   ( 'f' <<  8 ) | 1 )
 170 #define PCF_FORMAT_MASK         0xFFFFFF00L
 171
 172 #define PCF_DEFAULT_FORMAT      0x00000000L
 173 #define PCF_INKBOUNDS           0x00000200L
 174 #define PCF_ACCEL_W_INKBOUNDS   0x00000100L
 175 #define PCF_COMPRESSED_METRICS  0x00000100L
 176
 177 #define PCF_FORMAT_MATCH( a, b ) \
 178           ( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) )
 179
 180 #define PCF_GLYPH_PAD_MASK  ( 3 << 0 )
 181 #define PCF_BYTE_MASK       ( 1 << 2 )
 182 #define PCF_BIT_MASK        ( 1 << 3 )
 183 #define PCF_SCAN_UNIT_MASK  ( 3 << 4 )
 184
 185 #define PCF_BYTE_ORDER( f ) \
 186           ( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst )
 187 #define PCF_BIT_ORDER( f ) \
 188           ( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst )
 189 #define PCF_GLYPH_PAD_INDEX( f ) \
 190           ( (f) & PCF_GLYPH_PAD_MASK )
 191 #define PCF_GLYPH_PAD( f ) \
 192           ( 1 << PCF_GLYPH_PAD_INDEX( f ) )
 193 #define PCF_SCAN_UNIT_INDEX( f ) \
 194           ( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 )
 195 #define PCF_SCAN_UNIT( f ) \
 196           ( 1 << PCF_SCAN_UNIT_INDEX( f ) )
 197 #define PCF_FORMAT_BITS( f )             \
 198           ( (f) & ( PCF_GLYPH_PAD_MASK | \
 199                     PCF_BYTE_MASK      | \
 200                     PCF_BIT_MASK       | \
 201                     PCF_SCAN_UNIT_MASK ) )
 202
 203 #define PCF_SIZE_TO_INDEX( s )  ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 )
 204 #define PCF_INDEX_TO_SIZE( b )  ( 1 << b )
 205
 206 #define PCF_FORMAT( bit, byte, glyph, scan )          \
 207           ( ( PCF_SIZE_TO_INDEX( scan )      << 4 ) | \
 208             ( ( (bit)  == MSBFirst ? 1 : 0 ) << 3 ) | \
 209             ( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \
 210             ( PCF_SIZE_TO_INDEX( glyph )     << 0 ) )
 211
 212 #define PCF_PROPERTIES        ( 1 << 0 )
 213 #define PCF_ACCELERATORS      ( 1 << 1 )
 214 #define PCF_METRICS           ( 1 << 2 )
 215 #define PCF_BITMAPS           ( 1 << 3 )
 216 #define PCF_INK_METRICS       ( 1 << 4 )
 217 #define PCF_BDF_ENCODINGS     ( 1 << 5 )
 218 #define PCF_SWIDTHS           ( 1 << 6 )
 219 #define PCF_GLYPH_NAMES       ( 1 << 7 )
 220 #define PCF_BDF_ACCELERATORS  ( 1 << 8 )
 221
 222 #define GLYPHPADOPTIONS  4 /* I'm not sure about this */
 223
 224   FT_LOCAL( FT_Error )
 225   pcf_load_font( FT_Stream,
 226                  PCF_Face );
 227
 228
 229 FT_END_HEADER
 230
 231 #endif /* __PCF_H__ */
 232
 233
 234 /* END */