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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /***************************************************************************/ |
| 2 | /* */ |
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| 3 | /* pshrec.h */ |
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| 4 | /* */ |
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| 5 | /* Postscript (Type1/Type2) hints recorder (specification). */ |
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| 6 | /* */ |
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| 7 | /* Copyright 2001, 2002, 2003, 2006, 2008 by */ |
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| 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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| 9 | /* */ |
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| 10 | /* This file is part of the FreeType project, and may only be used, */ |
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| 11 | /* modified, and distributed under the terms of the FreeType project */ |
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| 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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| 13 | /* this file you indicate that you have read the license and */ |
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| 14 | /* understand and accept it fully. */ |
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| 15 | /* */ |
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| 16 | /***************************************************************************/ |
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| 17 | |||
| 18 | |||
| 19 | /**************************************************************************/ |
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| 20 | /* */ |
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| 21 | /* The functions defined here are called from the Type 1, CID and CFF */ |
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| 22 | /* font drivers to record the hints of a given character/glyph. */ |
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| 23 | /* */ |
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| 24 | /* The hints are recorded in a unified format, and are later processed */ |
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| 25 | /* by the `optimizer' and `fitter' to adjust the outlines to the pixel */ |
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| 26 | /* grid. */ |
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| 27 | /* */ |
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| 28 | /**************************************************************************/ |
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| 29 | |||
| 30 | |||
| 31 | #ifndef __PSHREC_H__ |
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| 32 | #define __PSHREC_H__ |
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| 33 | |||
| 34 | |||
| 35 | #include |
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| 36 | #include FT_INTERNAL_POSTSCRIPT_HINTS_H |
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| 37 | #include "pshglob.h" |
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| 38 | |||
| 39 | |||
| 40 | FT_BEGIN_HEADER |
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| 41 | |||
| 42 | |||
| 43 | /*************************************************************************/ |
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| 44 | /*************************************************************************/ |
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| 45 | /***** *****/ |
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| 46 | /***** GLYPH HINTS RECORDER INTERNALS *****/ |
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| 47 | /***** *****/ |
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| 48 | /*************************************************************************/ |
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| 49 | /*************************************************************************/ |
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| 50 | |||
| 51 | /* handle to hint record */ |
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| 52 | typedef struct PS_HintRec_* PS_Hint; |
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| 53 | |||
| 54 | /* hint types */ |
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| 55 | typedef enum PS_Hint_Type_ |
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| 56 | { |
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| 57 | PS_HINT_TYPE_1 = 1, |
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| 58 | PS_HINT_TYPE_2 = 2 |
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| 59 | |||
| 60 | } PS_Hint_Type; |
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| 61 | |||
| 62 | |||
| 63 | /* hint flags */ |
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| 64 | typedef enum PS_Hint_Flags_ |
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| 65 | { |
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| 66 | PS_HINT_FLAG_GHOST = 1, |
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| 67 | PS_HINT_FLAG_BOTTOM = 2 |
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| 68 | |||
| 69 | } PS_Hint_Flags; |
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| 70 | |||
| 71 | |||
| 72 | /* hint descriptor */ |
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| 73 | typedef struct PS_HintRec_ |
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| 74 | { |
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| 75 | FT_Int pos; |
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| 76 | FT_Int len; |
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| 77 | FT_UInt flags; |
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| 78 | |||
| 79 | } PS_HintRec; |
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| 80 | |||
| 81 | |||
| 82 | #define ps_hint_is_active( x ) ( (x)->flags & PS_HINT_FLAG_ACTIVE ) |
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| 83 | #define ps_hint_is_ghost( x ) ( (x)->flags & PS_HINT_FLAG_GHOST ) |
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| 84 | #define ps_hint_is_bottom( x ) ( (x)->flags & PS_HINT_FLAG_BOTTOM ) |
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| 85 | |||
| 86 | |||
| 87 | /* hints table descriptor */ |
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| 88 | typedef struct PS_Hint_TableRec_ |
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| 89 | { |
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| 90 | FT_UInt num_hints; |
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| 91 | FT_UInt max_hints; |
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| 92 | PS_Hint hints; |
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| 93 | |||
| 94 | } PS_Hint_TableRec, *PS_Hint_Table; |
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| 95 | |||
| 96 | |||
| 97 | /* hint and counter mask descriptor */ |
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| 98 | typedef struct PS_MaskRec_ |
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| 99 | { |
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| 100 | FT_UInt num_bits; |
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| 101 | FT_UInt max_bits; |
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| 102 | FT_Byte* bytes; |
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| 103 | FT_UInt end_point; |
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| 104 | |||
| 105 | } PS_MaskRec, *PS_Mask; |
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| 106 | |||
| 107 | |||
| 108 | /* masks and counters table descriptor */ |
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| 109 | typedef struct PS_Mask_TableRec_ |
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| 110 | { |
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| 111 | FT_UInt num_masks; |
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| 112 | FT_UInt max_masks; |
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| 113 | PS_Mask masks; |
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| 114 | |||
| 115 | } PS_Mask_TableRec, *PS_Mask_Table; |
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| 116 | |||
| 117 | |||
| 118 | /* dimension-specific hints descriptor */ |
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| 119 | typedef struct PS_DimensionRec_ |
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| 120 | { |
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| 121 | PS_Hint_TableRec hints; |
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| 122 | PS_Mask_TableRec masks; |
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| 123 | PS_Mask_TableRec counters; |
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| 124 | |||
| 125 | } PS_DimensionRec, *PS_Dimension; |
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| 126 | |||
| 127 | |||
| 128 | /* glyph hints descriptor */ |
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| 129 | /* dimension 0 => X coordinates + vertical hints/stems */ |
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| 130 | /* dimension 1 => Y coordinates + horizontal hints/stems */ |
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| 131 | typedef struct PS_HintsRec_ |
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| 132 | { |
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| 133 | FT_Memory memory; |
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| 134 | FT_Error error; |
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| 135 | FT_UInt32 magic; |
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| 136 | PS_Hint_Type hint_type; |
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| 137 | PS_DimensionRec dimension[2]; |
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| 138 | |||
| 139 | } PS_HintsRec, *PS_Hints; |
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| 140 | |||
| 141 | /* */ |
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| 142 | |||
| 143 | /* initialize hints recorder */ |
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| 144 | FT_LOCAL( FT_Error ) |
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| 145 | ps_hints_init( PS_Hints hints, |
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| 146 | FT_Memory memory ); |
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| 147 | |||
| 148 | /* finalize hints recorder */ |
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| 149 | FT_LOCAL( void ) |
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| 150 | ps_hints_done( PS_Hints hints ); |
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| 151 | |||
| 152 | /* initialize Type1 hints recorder interface */ |
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| 153 | FT_LOCAL( void ) |
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| 154 | t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ); |
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| 155 | |||
| 156 | /* initialize Type2 hints recorder interface */ |
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| 157 | FT_LOCAL( void ) |
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| 158 | t2_hints_funcs_init( T2_Hints_FuncsRec* funcs ); |
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| 159 | |||
| 160 | |||
| 161 | #ifdef DEBUG_HINTER |
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| 162 | extern PS_Hints ps_debug_hints; |
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| 163 | extern int ps_debug_no_horz_hints; |
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| 164 | extern int ps_debug_no_vert_hints; |
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| 165 | #endif |
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| 166 | |||
| 167 | /* */ |
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| 168 | |||
| 169 | |||
| 170 | FT_END_HEADER |
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| 171 | |||
| 172 | |||
| 173 | #endif /* __PS_HINTER_RECORD_H__ */ |
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| 174 | |||
| 175 | |||
| 176 | /* END */ |