PageRenderTime 259ms CodeModel.GetById 130ms app.highlight 11ms RepoModel.GetById 110ms app.codeStats 0ms

/src/compiler/android-ndk/jni/freetype/src/cff/cffgload.h

http://ftk.googlecode.com/
C++ Header | 201 lines | 90 code | 47 blank | 64 comment | 0 complexity | 2ceafd2faec8309c5e41cf57f9167c48 MD5 | raw file
  1/***************************************************************************/
  2/*                                                                         */
  3/*  cffgload.h                                                             */
  4/*                                                                         */
  5/*    OpenType Glyph Loader (specification).                               */
  6/*                                                                         */
  7/*  Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by       */
  8/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  9/*                                                                         */
 10/*  This file is part of the FreeType project, and may only be used,       */
 11/*  modified, and distributed under the terms of the FreeType project      */
 12/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
 13/*  this file you indicate that you have read the license and              */
 14/*  understand and accept it fully.                                        */
 15/*                                                                         */
 16/***************************************************************************/
 17
 18
 19#ifndef __CFFGLOAD_H__
 20#define __CFFGLOAD_H__
 21
 22
 23#include <ft2build.h>
 24#include FT_FREETYPE_H
 25#include "cffobjs.h"
 26
 27
 28FT_BEGIN_HEADER
 29
 30
 31#define CFF_MAX_OPERANDS        48
 32#define CFF_MAX_SUBRS_CALLS     32
 33#define CFF_MAX_TRANS_ELEMENTS  32
 34
 35
 36  /*************************************************************************/
 37  /*                                                                       */
 38  /* <Structure>                                                           */
 39  /*    CFF_Builder                                                        */
 40  /*                                                                       */
 41  /* <Description>                                                         */
 42  /*     A structure used during glyph loading to store its outline.       */
 43  /*                                                                       */
 44  /* <Fields>                                                              */
 45  /*    memory        :: The current memory object.                        */
 46  /*                                                                       */
 47  /*    face          :: The current face object.                          */
 48  /*                                                                       */
 49  /*    glyph         :: The current glyph slot.                           */
 50  /*                                                                       */
 51  /*    loader        :: The current glyph loader.                         */
 52  /*                                                                       */
 53  /*    base          :: The base glyph outline.                           */
 54  /*                                                                       */
 55  /*    current       :: The current glyph outline.                        */
 56  /*                                                                       */
 57  /*    pos_x         :: The horizontal translation (if composite glyph).  */
 58  /*                                                                       */
 59  /*    pos_y         :: The vertical translation (if composite glyph).    */
 60  /*                                                                       */
 61  /*    left_bearing  :: The left side bearing point.                      */
 62  /*                                                                       */
 63  /*    advance       :: The horizontal advance vector.                    */
 64  /*                                                                       */
 65  /*    bbox          :: Unused.                                           */
 66  /*                                                                       */
 67  /*    path_begun    :: A flag which indicates that a new path has begun. */
 68  /*                                                                       */
 69  /*    load_points   :: If this flag is not set, no points are loaded.    */
 70  /*                                                                       */
 71  /*    no_recurse    :: Set but not used.                                 */
 72  /*                                                                       */
 73  /*    metrics_only  :: A boolean indicating that we only want to compute */
 74  /*                     the metrics of a given glyph, not load all of its */
 75  /*                     points.                                           */
 76  /*                                                                       */
 77  /*    hints_funcs   :: Auxiliary pointer for hinting.                    */
 78  /*                                                                       */
 79  /*    hints_globals :: Auxiliary pointer for hinting.                    */
 80  /*                                                                       */
 81  typedef struct  CFF_Builder_
 82  {
 83    FT_Memory       memory;
 84    TT_Face         face;
 85    CFF_GlyphSlot   glyph;
 86    FT_GlyphLoader  loader;
 87    FT_Outline*     base;
 88    FT_Outline*     current;
 89
 90    FT_Pos          pos_x;
 91    FT_Pos          pos_y;
 92
 93    FT_Vector       left_bearing;
 94    FT_Vector       advance;
 95
 96    FT_BBox         bbox;          /* bounding box */
 97    FT_Bool         path_begun;
 98    FT_Bool         load_points;
 99    FT_Bool         no_recurse;
100
101    FT_Bool         metrics_only;
102
103    void*           hints_funcs;    /* hinter-specific */
104    void*           hints_globals;  /* hinter-specific */
105
106  } CFF_Builder;
107
108
109  /* execution context charstring zone */
110
111  typedef struct  CFF_Decoder_Zone_
112  {
113    FT_Byte*  base;
114    FT_Byte*  limit;
115    FT_Byte*  cursor;
116
117  } CFF_Decoder_Zone;
118
119
120  typedef struct  CFF_Decoder_
121  {
122    CFF_Builder        builder;
123    CFF_Font           cff;
124
125    FT_Fixed           stack[CFF_MAX_OPERANDS + 1];
126    FT_Fixed*          top;
127
128    CFF_Decoder_Zone   zones[CFF_MAX_SUBRS_CALLS + 1];
129    CFF_Decoder_Zone*  zone;
130
131    FT_Int             flex_state;
132    FT_Int             num_flex_vectors;
133    FT_Vector          flex_vectors[7];
134
135    FT_Pos             glyph_width;
136    FT_Pos             nominal_width;
137
138    FT_Bool            read_width;
139    FT_Bool            width_only;
140    FT_Int             num_hints;
141    FT_Fixed           buildchar[CFF_MAX_TRANS_ELEMENTS];
142
143    FT_UInt            num_locals;
144    FT_UInt            num_globals;
145
146    FT_Int             locals_bias;
147    FT_Int             globals_bias;
148
149    FT_Byte**          locals;
150    FT_Byte**          globals;
151
152    FT_Byte**          glyph_names;   /* for pure CFF fonts only  */
153    FT_UInt            num_glyphs;    /* number of glyphs in font */
154
155    FT_Render_Mode     hint_mode;
156
157    FT_Bool            seac;
158
159  } CFF_Decoder;
160
161
162  FT_LOCAL( void )
163  cff_decoder_init( CFF_Decoder*    decoder,
164                    TT_Face         face,
165                    CFF_Size        size,
166                    CFF_GlyphSlot   slot,
167                    FT_Bool         hinting,
168                    FT_Render_Mode  hint_mode );
169
170  FT_LOCAL( FT_Error )
171  cff_decoder_prepare( CFF_Decoder*  decoder,
172                       CFF_Size      size,
173                       FT_UInt       glyph_index );
174
175#if 0  /* unused until we support pure CFF fonts */
176
177  /* Compute the maximum advance width of a font through quick parsing */
178  FT_LOCAL( FT_Error )
179  cff_compute_max_advance( TT_Face  face,
180                           FT_Int*  max_advance );
181
182#endif /* 0 */
183
184  FT_LOCAL( FT_Error )
185  cff_decoder_parse_charstrings( CFF_Decoder*  decoder,
186                                 FT_Byte*      charstring_base,
187                                 FT_ULong      charstring_len );
188
189  FT_LOCAL( FT_Error )
190  cff_slot_load( CFF_GlyphSlot  glyph,
191                 CFF_Size       size,
192                 FT_UInt        glyph_index,
193                 FT_Int32       load_flags );
194
195
196FT_END_HEADER
197
198#endif /* __CFFGLOAD_H__ */
199
200
201/* END */