133 lines
5.1 KiB
C
133 lines
5.1 KiB
C
/*
|
|
* Implementation of Uniscribe Script Processor (usp10.dll)
|
|
*
|
|
* Copyright 2010 CodeWeavers, Aric Stewart
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*
|
|
*/
|
|
#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
|
|
( ( (ULONG)_x4 << 24 ) | \
|
|
( (ULONG)_x3 << 16 ) | \
|
|
( (ULONG)_x2 << 8 ) | \
|
|
(ULONG)_x1 )
|
|
|
|
|
|
#define Script_Latin 1
|
|
#define Script_CR 2
|
|
#define Script_Numeric 3
|
|
#define Script_Control 4
|
|
#define Script_Punctuation 5
|
|
#define Script_Arabic 6
|
|
#define Script_Arabic_Numeric 7
|
|
#define Script_Hebrew 8
|
|
#define Script_Syriac 9
|
|
#define Script_Persian 10
|
|
#define Script_Thaana 11
|
|
#define Script_Greek 12
|
|
#define Script_Cyrillic 13
|
|
#define Script_Armenian 14
|
|
#define Script_Georgian 15
|
|
/* Unicode Chapter 10 */
|
|
#define Script_Sinhala 16
|
|
#define Script_Tibetan 17
|
|
#define Script_Tibetan_Numeric 18
|
|
#define Script_Phags_pa 19
|
|
/* Unicode Chapter 11 */
|
|
#define Script_Thai 20
|
|
#define Script_Thai_Numeric 21
|
|
#define Script_Lao 22
|
|
#define Script_Lao_Numeric 23
|
|
/* Unicode Chapter 9 */
|
|
#define Script_Devanagari 24
|
|
#define Script_Devanagari_Numeric 25
|
|
#define Script_Bengali 26
|
|
#define Script_Bengali_Numeric 27
|
|
#define Script_Bengali_Currency 28
|
|
#define Script_Gurmukhi 29
|
|
#define Script_Gurmukhi_Numeric 30
|
|
#define Script_Gujarati 31
|
|
#define Script_Gujarati_Numeric 32
|
|
#define Script_Gujarati_Currency 33
|
|
#define Script_Oriya 34
|
|
#define Script_Oriya_Numeric 35
|
|
#define Script_Tamil 36
|
|
#define Script_Tamil_Numeric 37
|
|
#define Script_Telugu 38
|
|
#define Script_Telugu_Numeric 39
|
|
#define Script_Kannada 40
|
|
#define Script_Kannada_Numeric 41
|
|
#define Script_Malayalam 42
|
|
#define Script_Malayalam_Numeric 43
|
|
|
|
#define GLYPH_BLOCK_SHIFT 8
|
|
#define GLYPH_BLOCK_SIZE (1UL << GLYPH_BLOCK_SHIFT)
|
|
#define GLYPH_BLOCK_MASK (GLYPH_BLOCK_SIZE - 1)
|
|
#define GLYPH_MAX 65536
|
|
|
|
typedef struct {
|
|
char tag[4];
|
|
LPCVOID feature;
|
|
} LoadedFeature;
|
|
|
|
typedef struct {
|
|
LOGFONTW lf;
|
|
TEXTMETRICW tm;
|
|
WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE];
|
|
ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE];
|
|
LPVOID GSUB_Table;
|
|
LPVOID GDEF_Table;
|
|
INT feature_count;
|
|
LoadedFeature *features;
|
|
|
|
OPENTYPE_TAG userScript;
|
|
OPENTYPE_TAG userLang;
|
|
} ScriptCache;
|
|
|
|
typedef struct {
|
|
INT start;
|
|
INT base;
|
|
INT ralf;
|
|
INT blwf;
|
|
INT pref;
|
|
INT end;
|
|
} IndicSyllable;
|
|
|
|
enum {lex_Halant, lex_Composed_Vowel, lex_Matra_post, lex_Matra_pre, lex_Matra_above, lex_Matra_below, lex_ZWJ, lex_ZWNJ, lex_NBSP, lex_Modifier, lex_Vowel, lex_Consonant, lex_Generic, lex_Ra, lex_Vedic, lex_Anudatta, lex_Nukta};
|
|
|
|
static inline BOOL is_consonant( int type )
|
|
{
|
|
return (type == lex_Ra || type == lex_Consonant);
|
|
}
|
|
|
|
typedef int (*lexical_function)(WCHAR c);
|
|
typedef void (*reorder_function)(LPWSTR pwChar, IndicSyllable *syllable, lexical_function lex);
|
|
|
|
#define odd(x) ((x) & 1)
|
|
|
|
BOOL BIDI_DetermineLevels( LPCWSTR lpString, INT uCount, const SCRIPT_STATE *s,
|
|
const SCRIPT_CONTROL *c, WORD *lpOutLevels ) DECLSPEC_HIDDEN;
|
|
BOOL BIDI_GetStrengths(LPCWSTR lpString, INT uCount, const SCRIPT_CONTROL *c,
|
|
WORD* lpStrength) DECLSPEC_HIDDEN;
|
|
INT BIDI_ReorderV2lLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
|
|
INT BIDI_ReorderL2vLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
|
|
void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) DECLSPEC_HIDDEN;
|
|
void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust) DECLSPEC_HIDDEN;
|
|
HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa) DECLSPEC_HIDDEN;
|
|
void SHAPE_CharGlyphProp(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD *pwLogClust, SCRIPT_CHARPROP *pCharProp, SCRIPT_GLYPHPROP *pGlyphProp) DECLSPEC_HIDDEN;
|
|
INT SHAPE_does_GSUB_feature_apply_to_chars(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, const WCHAR *chars, INT write_dir, INT count, const char* feature) DECLSPEC_HIDDEN;
|
|
|
|
void Indic_ReorderCharacters( HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, LPWSTR input, int cChars, IndicSyllable **syllables, int *syllable_count, lexical_function lexical_f, reorder_function reorder_f, BOOL modern) DECLSPEC_HIDDEN;
|