dlls/usp10/usp10_internal.h

   1 /*
   2  * Implementation of Uniscribe Script Processor (usp10.dll)
   3  *
   4  * Copyright 2010 CodeWeavers, Aric Stewart
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  */
  21
  22 #define Script_Latin   1
  23 #define Script_CR      2
  24 #define Script_Numeric 3
  25 #define Script_Control 4
  26 #define Script_Punctuation 5
  27 #define Script_Arabic  6
  28 #define Script_Arabic_Numeric  7
  29 #define Script_Hebrew  8
  30 #define Script_Syriac  9
  31 #define Script_Persian 10
  32 #define Script_Thaana  11
  33 #define Script_Greek   12
  34 #define Script_Cyrillic   13
  35 #define Script_Armenian 14
  36 #define Script_Georgian 15
  37 /* Unicode Chapter 10 */
  38 #define Script_Sinhala 16
  39 #define Script_Tibetan 17
  40 #define Script_Tibetan_Numeric 18
  41 #define Script_Phags_pa 19
  42 /* Unicode Chapter 11 */
  43 #define Script_Thai 20
  44 #define Script_Thai_Numeric 21
  45 #define Script_Lao 22
  46 #define Script_Lao_Numeric 23
  47
  48 #define GLYPH_BLOCK_SHIFT 8
  49 #define GLYPH_BLOCK_SIZE  (1UL << GLYPH_BLOCK_SHIFT)
  50 #define GLYPH_BLOCK_MASK  (GLYPH_BLOCK_SIZE - 1)
  51 #define GLYPH_MAX         65536
  52
  53 typedef struct {
  54     char    tag[4];
  55     LPCVOID  feature;
  56 } LoadedFeature;
  57
  58 typedef struct {
  59     LOGFONTW lf;
  60     TEXTMETRICW tm;
  61     WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE];
  62     ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE];
  63     LPVOID GSUB_Table;
  64     INT feature_count;
  65     LoadedFeature *features;
  66 } ScriptCache;
  67
  68 #define odd(x) ((x) & 1)
  69
  70 BOOL BIDI_DetermineLevels( LPCWSTR lpString, INT uCount, const SCRIPT_STATE *s,
  71                 const SCRIPT_CONTROL *c, WORD *lpOutLevels );
  72 BOOL BIDI_GetStrengths(LPCWSTR lpString, INT uCount, const SCRIPT_CONTROL *c,
  73                       WORD* lpStrength);
  74 INT BIDI_ReorderV2lLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse);
  75 INT BIDI_ReorderL2vLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse);
  76 void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust);
  77 void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust);
  78 HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa);