wine/dlls/usp10/usp10_internal.h
Aric Stewart 6c73258725 usp10: Handle Ligature Substitution Subtable from GSUB.
This also involves a restructuring of the handling of glyph lookups
from GSUB since Ligature Substitution can result in many glyphs being
replaced with 1 glyph, and future looksup may result in one glyph
being replaces with many glyphs.
2010-05-24 11:18:59 +02:00

51 lines
1.9 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 Script_Syriac 8
#define Script_Hebrew 7
#define Script_Arabic 6
#define Script_Latin 1
#define Script_Numeric 5
#define Script_CR 22
#define Script_LF 23
#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 {
LOGFONTW lf;
TEXTMETRICW tm;
WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE];
ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE];
LPVOID *GSUB_Table;
} ScriptCache;
#define odd(x) ((x) & 1)
BOOL BIDI_DetermineLevels( LPCWSTR lpString, INT uCount, const SCRIPT_STATE *s,
const SCRIPT_CONTROL *c, WORD *lpOutLevels );
INT BIDI_ReorderV2lLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse);
INT BIDI_ReorderL2vLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse);
void SHAPE_ShapeArabicGlyphs(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs);