forked from Mirrors/wine-wine
286 lines
11 KiB
C
286 lines
11 KiB
C
/*
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* Implementation of Uniscribe Script Processor (usp10.dll)
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*
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* Copyright 2010 CodeWeavers, Aric Stewart
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include "wine/list.h"
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#define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
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( ( (ULONG)_x4 << 24 ) | \
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( (ULONG)_x3 << 16 ) | \
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( (ULONG)_x2 << 8 ) | \
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(ULONG)_x1 )
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enum usp10_script
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{
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Script_Undefined = 0x00,
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Script_Latin = 0x01,
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Script_CR = 0x02,
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Script_Numeric = 0x03,
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Script_Control = 0x04,
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Script_Punctuation = 0x05,
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Script_Arabic = 0x06,
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Script_Arabic_Numeric = 0x07,
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Script_Hebrew = 0x08,
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Script_Syriac = 0x09,
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Script_Persian = 0x0a,
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Script_Thaana = 0x0b,
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Script_Greek = 0x0c,
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Script_Cyrillic = 0x0d,
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Script_Armenian = 0x0e,
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Script_Georgian = 0x0f,
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/* Unicode Chapter 10 */
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Script_Sinhala = 0x10,
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Script_Tibetan = 0x11,
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Script_Tibetan_Numeric = 0x12,
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Script_Phags_pa = 0x13,
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/* Unicode Chapter 11 */
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Script_Thai = 0x14,
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Script_Thai_Numeric = 0x15,
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Script_Lao = 0x16,
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Script_Lao_Numeric = 0x17,
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/* Unicode Chapter 9 */
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Script_Devanagari = 0x18,
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Script_Devanagari_Numeric = 0x19,
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Script_Bengali = 0x1a,
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Script_Bengali_Numeric = 0x1b,
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Script_Bengali_Currency = 0x1c,
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Script_Gurmukhi = 0x1d,
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Script_Gurmukhi_Numeric = 0x1e,
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Script_Gujarati = 0x1f,
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Script_Gujarati_Numeric = 0x20,
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Script_Gujarati_Currency = 0x21,
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Script_Oriya = 0x22,
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Script_Oriya_Numeric = 0x23,
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Script_Tamil = 0x24,
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Script_Tamil_Numeric = 0x25,
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Script_Telugu = 0x26,
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Script_Telugu_Numeric = 0x27,
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Script_Kannada = 0x28,
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Script_Kannada_Numeric = 0x29,
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Script_Malayalam = 0x2a,
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Script_Malayalam_Numeric = 0x2b,
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/* More supplemental */
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Script_Diacritical = 0x2c,
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Script_Punctuation2 = 0x2d,
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Script_Numeric2 = 0x2e,
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/* Unicode Chapter 11 continued */
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Script_Myanmar = 0x2f,
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Script_Myanmar_Numeric = 0x30,
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Script_Tai_Le = 0x31,
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Script_New_Tai_Lue = 0x32,
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Script_New_Tai_Lue_Numeric = 0x33,
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Script_Khmer = 0x34,
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Script_Khmer_Numeric = 0x35,
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/* Unicode Chapter 12 */
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Script_CJK_Han = 0x36,
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Script_Ideograph = 0x37,
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Script_Bopomofo = 0x38,
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Script_Kana = 0x39,
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Script_Hangul = 0x3a,
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Script_Yi = 0x3b,
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/* Unicode Chapter 13 */
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Script_Ethiopic = 0x3c,
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Script_Ethiopic_Numeric = 0x3d,
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Script_Mongolian = 0x3e,
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Script_Mongolian_Numeric = 0x3f,
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Script_Tifinagh = 0x40,
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Script_NKo = 0x41,
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Script_Vai = 0x42,
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Script_Vai_Numeric = 0x43,
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Script_Cherokee = 0x44,
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Script_Canadian = 0x45,
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/* Unicode Chapter 14 */
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Script_Ogham = 0x46,
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Script_Runic = 0x47,
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/* Unicode Chapter 15 */
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Script_Braille = 0x48,
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/* Unicode Chapter 16 */
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Script_Surrogates = 0x49,
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Script_Private = 0x4a,
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/* Unicode Chapter 13 : Plane 1 */
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Script_Deseret = 0x4b,
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Script_Osmanya = 0x4c,
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Script_Osmanya_Numeric = 0x4d,
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/* Unicode Chapter 15 : Plane 1 */
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Script_MathAlpha = 0x4e,
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/* Additional Currency Scripts */
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Script_Hebrew_Currency = 0x4f,
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Script_Vietnamese_Currency = 0x50,
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Script_Thai_Currency = 0x51,
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};
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#define GLYPH_BLOCK_SHIFT 8
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#define GLYPH_BLOCK_SIZE (1UL << GLYPH_BLOCK_SHIFT)
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#define GLYPH_BLOCK_MASK (GLYPH_BLOCK_SIZE - 1)
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#define GLYPH_MAX 65536
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#define NUM_PAGES 17
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#define GSUB_E_NOFEATURE -20
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#define GSUB_E_NOGLYPH -10
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#define FEATURE_ALL_TABLES 0
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#define FEATURE_GSUB_TABLE 1
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#define FEATURE_GPOS_TABLE 2
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typedef struct {
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OPENTYPE_TAG tag;
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CHAR tableType;
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const void *feature;
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INT lookup_count;
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WORD *lookups;
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} LoadedFeature;
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enum usp10_language_table
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{
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USP10_LANGUAGE_TABLE_GSUB = 0,
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USP10_LANGUAGE_TABLE_GPOS,
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USP10_LANGUAGE_TABLE_COUNT
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};
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typedef struct {
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OPENTYPE_TAG tag;
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const void *table[USP10_LANGUAGE_TABLE_COUNT];
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BOOL features_initialized;
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LoadedFeature *features;
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SIZE_T features_size;
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SIZE_T feature_count;
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} LoadedLanguage;
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enum usp10_script_table
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{
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USP10_SCRIPT_TABLE_GSUB = 0,
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USP10_SCRIPT_TABLE_GPOS,
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USP10_SCRIPT_TABLE_COUNT
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};
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typedef struct {
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OPENTYPE_TAG tag;
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const void *table[USP10_SCRIPT_TABLE_COUNT];
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LoadedLanguage default_language;
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BOOL languages_initialized;
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LoadedLanguage *languages;
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SIZE_T languages_size;
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SIZE_T language_count;
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} LoadedScript;
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typedef struct {
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WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE];
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} CacheGlyphPage;
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typedef struct {
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struct list entry;
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DWORD refcount;
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LOGFONTW lf;
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TEXTMETRICW tm;
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OUTLINETEXTMETRICW *otm;
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SCRIPT_FONTPROPERTIES sfp;
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BOOL sfnt;
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CacheGlyphPage *page[NUM_PAGES];
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ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE];
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void *GSUB_Table;
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void *GDEF_Table;
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void *CMAP_Table;
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void *CMAP_format12_Table;
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void *GPOS_Table;
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BOOL scripts_initialized;
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LoadedScript *scripts;
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SIZE_T scripts_size;
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SIZE_T script_count;
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OPENTYPE_TAG userScript;
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OPENTYPE_TAG userLang;
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} ScriptCache;
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typedef struct _scriptData
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{
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SCRIPT_ANALYSIS a;
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SCRIPT_PROPERTIES props;
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OPENTYPE_TAG scriptTag;
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WCHAR fallbackFont[LF_FACESIZE];
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} scriptData;
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typedef struct {
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INT start;
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INT base;
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INT ralf;
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INT blwf;
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INT pref;
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INT end;
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} IndicSyllable;
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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};
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static inline BOOL is_consonant( int type )
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{
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return (type == lex_Ra || type == lex_Consonant);
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}
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static inline unsigned short get_table_entry( const unsigned short *table, WCHAR ch )
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{
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return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
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}
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typedef int (*lexical_function)(WCHAR c);
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typedef void (*reorder_function)(WCHAR *chars, IndicSyllable *syllable, lexical_function lex);
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#define odd(x) ((x) & 1)
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#define BIDI_STRONG 1
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#define BIDI_WEAK 2
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#define BIDI_NEUTRAL 0
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BOOL usp10_array_reserve(void **elements, SIZE_T *capacity, SIZE_T count, SIZE_T size) DECLSPEC_HIDDEN;
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int USP10_FindGlyphInLogClust(const WORD* pwLogClust, int cChars, WORD target) DECLSPEC_HIDDEN;
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BOOL BIDI_DetermineLevels(const WCHAR *string, unsigned int count, const SCRIPT_STATE *s,
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const SCRIPT_CONTROL *c, WORD *levels, WORD *overrides) DECLSPEC_HIDDEN;
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BOOL BIDI_GetStrengths(const WCHAR *string, unsigned int count,
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const SCRIPT_CONTROL *c, WORD *strength) DECLSPEC_HIDDEN;
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INT BIDI_ReorderV2lLevel(int level, int *pIndices, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
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INT BIDI_ReorderL2vLevel(int level, int *pIndices, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
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void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) DECLSPEC_HIDDEN;
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void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust) DECLSPEC_HIDDEN;
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void SHAPE_ApplyOpenTypePositions(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WORD* pwGlyphs, INT cGlyphs, int *piAdvance, GOFFSET *pGoffset ) DECLSPEC_HIDDEN;
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HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa) DECLSPEC_HIDDEN;
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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;
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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;
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HRESULT SHAPE_GetFontScriptTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) DECLSPEC_HIDDEN;
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HRESULT SHAPE_GetFontLanguageTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, OPENTYPE_TAG tagScript, int cMaxTags, OPENTYPE_TAG *pLangSysTags, int *pcTags) DECLSPEC_HIDDEN;
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HRESULT SHAPE_GetFontFeatureTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, OPENTYPE_TAG tagScript, OPENTYPE_TAG tagLangSys, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags) DECLSPEC_HIDDEN;
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void Indic_ReorderCharacters(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache *psc, WCHAR *input, unsigned int cChars,
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IndicSyllable **syllables, int *syllable_count, lexical_function lexical_f,
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reorder_function reorder_f, BOOL modern) DECLSPEC_HIDDEN;
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void Indic_ParseSyllables(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, const WCHAR *input, unsigned int cChar,
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IndicSyllable **syllables, int *syllable_count, lexical_function lex, BOOL modern) DECLSPEC_HIDDEN;
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void BREAK_line(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT_LOGATTR *la) DECLSPEC_HIDDEN;
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DWORD OpenType_CMAP_GetGlyphIndex(HDC hdc, ScriptCache *psc, DWORD utf32c, LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN;
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void OpenType_GDEF_UpdateGlyphProps(ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, const WORD cChars, SCRIPT_GLYPHPROP *pGlyphProp) DECLSPEC_HIDDEN;
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int OpenType_apply_GSUB_lookup(const void *table, unsigned int lookup_index, WORD *glyphs,
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unsigned int glyph_index, int write_dir, int *glyph_count) DECLSPEC_HIDDEN;
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unsigned int OpenType_apply_GPOS_lookup(const ScriptCache *psc, const OUTLINETEXTMETRICW *otm,
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const LOGFONTW *logfont, const SCRIPT_ANALYSIS *analysis, int *advance, unsigned int lookup_index,
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const WORD *glyphs, unsigned int glyph_index, unsigned int glyph_count, GOFFSET *goffset) DECLSPEC_HIDDEN;
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HRESULT OpenType_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) DECLSPEC_HIDDEN;
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HRESULT OpenType_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags) DECLSPEC_HIDDEN;
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HRESULT OpenType_GetFontFeatureTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG language_tag, BOOL filtered, OPENTYPE_TAG searchingFor, char tableType, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags, LoadedFeature** feature) DECLSPEC_HIDDEN;
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