2247 lines
80 KiB
C
2247 lines
80 KiB
C
/*
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* Opentype font interfaces for the Uniscribe Script Processor (usp10.dll)
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*
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* Copyright 2012 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 <stdarg.h>
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#include <stdlib.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "winnls.h"
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#include "usp10.h"
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#include "winternl.h"
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#include "usp10_internal.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(uniscribe);
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#ifdef WORDS_BIGENDIAN
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#define GET_BE_WORD(x) (x)
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#define GET_BE_DWORD(x) (x)
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#else
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#define GET_BE_WORD(x) RtlUshortByteSwap(x)
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#define GET_BE_DWORD(x) RtlUlongByteSwap(x)
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#endif
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#define round(x) (((x) < 0) ? (int)((x) - 0.5) : (int)((x) + 0.5))
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/* These are all structures needed for the cmap format 12 table */
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#define CMAP_TAG MS_MAKE_TAG('c', 'm', 'a', 'p')
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typedef struct {
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WORD platformID;
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WORD encodingID;
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DWORD offset;
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} CMAP_EncodingRecord;
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typedef struct {
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WORD version;
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WORD numTables;
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CMAP_EncodingRecord tables[1];
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} CMAP_Header;
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typedef struct {
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DWORD startCharCode;
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DWORD endCharCode;
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DWORD startGlyphID;
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} CMAP_SegmentedCoverage_group;
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typedef struct {
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WORD format;
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WORD reserved;
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DWORD length;
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DWORD language;
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DWORD nGroups;
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CMAP_SegmentedCoverage_group groups[1];
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} CMAP_SegmentedCoverage;
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/* These are all structures needed for the GDEF table */
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#define GDEF_TAG MS_MAKE_TAG('G', 'D', 'E', 'F')
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enum {BaseGlyph=1, LigatureGlyph, MarkGlyph, ComponentGlyph};
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typedef struct {
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DWORD Version;
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WORD GlyphClassDef;
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WORD AttachList;
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WORD LigCaretList;
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WORD MarkAttachClassDef;
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} GDEF_Header;
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typedef struct {
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WORD ClassFormat;
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WORD StartGlyph;
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WORD GlyphCount;
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WORD ClassValueArray[1];
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} OT_ClassDefFormat1;
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typedef struct {
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WORD Start;
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WORD End;
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WORD Class;
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} OT_ClassRangeRecord;
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typedef struct {
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WORD ClassFormat;
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WORD ClassRangeCount;
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OT_ClassRangeRecord ClassRangeRecord[1];
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} OT_ClassDefFormat2;
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/* These are all structures needed for the GSUB table */
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typedef struct {
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DWORD version;
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WORD ScriptList;
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WORD FeatureList;
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WORD LookupList;
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} GSUB_Header;
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typedef struct {
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CHAR ScriptTag[4];
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WORD Script;
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} OT_ScriptRecord;
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typedef struct {
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WORD ScriptCount;
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OT_ScriptRecord ScriptRecord[1];
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} OT_ScriptList;
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typedef struct {
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CHAR LangSysTag[4];
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WORD LangSys;
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} OT_LangSysRecord;
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typedef struct {
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WORD DefaultLangSys;
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WORD LangSysCount;
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OT_LangSysRecord LangSysRecord[1];
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} OT_Script;
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typedef struct {
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WORD LookupOrder; /* Reserved */
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WORD ReqFeatureIndex;
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WORD FeatureCount;
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WORD FeatureIndex[1];
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} OT_LangSys;
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typedef struct {
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CHAR FeatureTag[4];
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WORD Feature;
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} OT_FeatureRecord;
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typedef struct {
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WORD FeatureCount;
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OT_FeatureRecord FeatureRecord[1];
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} OT_FeatureList;
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typedef struct {
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WORD FeatureParams; /* Reserved */
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WORD LookupCount;
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WORD LookupListIndex[1];
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} OT_Feature;
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typedef struct {
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WORD LookupCount;
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WORD Lookup[1];
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} OT_LookupList;
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typedef struct {
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WORD LookupType;
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WORD LookupFlag;
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WORD SubTableCount;
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WORD SubTable[1];
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} OT_LookupTable;
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typedef struct {
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WORD CoverageFormat;
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WORD GlyphCount;
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WORD GlyphArray[1];
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} OT_CoverageFormat1;
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typedef struct {
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WORD Start;
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WORD End;
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WORD StartCoverageIndex;
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} OT_RangeRecord;
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typedef struct {
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WORD CoverageFormat;
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WORD RangeCount;
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OT_RangeRecord RangeRecord[1];
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} OT_CoverageFormat2;
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typedef struct {
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WORD SubstFormat; /* = 1 */
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WORD Coverage;
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WORD DeltaGlyphID;
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} GSUB_SingleSubstFormat1;
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typedef struct {
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WORD SubstFormat; /* = 2 */
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WORD Coverage;
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WORD GlyphCount;
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WORD Substitute[1];
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}GSUB_SingleSubstFormat2;
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typedef struct {
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WORD SubstFormat; /* = 1 */
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WORD Coverage;
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WORD SequenceCount;
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WORD Sequence[1];
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}GSUB_MultipleSubstFormat1;
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typedef struct {
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WORD GlyphCount;
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WORD Substitute[1];
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}GSUB_Sequence;
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typedef struct {
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WORD SubstFormat; /* = 1 */
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WORD Coverage;
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WORD LigSetCount;
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WORD LigatureSet[1];
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}GSUB_LigatureSubstFormat1;
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typedef struct {
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WORD LigatureCount;
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WORD Ligature[1];
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}GSUB_LigatureSet;
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typedef struct{
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WORD LigGlyph;
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WORD CompCount;
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WORD Component[1];
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}GSUB_Ligature;
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typedef struct{
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WORD SequenceIndex;
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WORD LookupListIndex;
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}GSUB_SubstLookupRecord;
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typedef struct{
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WORD SubstFormat; /* = 1 */
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WORD Coverage;
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WORD ChainSubRuleSetCount;
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WORD ChainSubRuleSet[1];
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}GSUB_ChainContextSubstFormat1;
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typedef struct {
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WORD SubstFormat; /* = 3 */
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WORD BacktrackGlyphCount;
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WORD Coverage[1];
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}GSUB_ChainContextSubstFormat3_1;
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typedef struct{
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WORD InputGlyphCount;
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WORD Coverage[1];
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}GSUB_ChainContextSubstFormat3_2;
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typedef struct{
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WORD LookaheadGlyphCount;
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WORD Coverage[1];
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}GSUB_ChainContextSubstFormat3_3;
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typedef struct{
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WORD SubstCount;
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GSUB_SubstLookupRecord SubstLookupRecord[1];
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}GSUB_ChainContextSubstFormat3_4;
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typedef struct {
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WORD SubstFormat; /* = 1 */
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WORD Coverage;
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WORD AlternateSetCount;
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WORD AlternateSet[1];
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} GSUB_AlternateSubstFormat1;
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typedef struct{
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WORD GlyphCount;
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WORD Alternate[1];
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} GSUB_AlternateSet;
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/* These are all structures needed for the GPOS table */
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typedef struct {
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DWORD version;
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WORD ScriptList;
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WORD FeatureList;
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WORD LookupList;
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} GPOS_Header;
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typedef struct {
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WORD StartSize;
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WORD EndSize;
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WORD DeltaFormat;
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WORD DeltaValue[1];
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} OT_DeviceTable;
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typedef struct {
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WORD AnchorFormat;
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WORD XCoordinate;
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WORD YCoordinate;
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} GPOS_AnchorFormat1;
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typedef struct {
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WORD AnchorFormat;
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WORD XCoordinate;
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WORD YCoordinate;
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WORD AnchorPoint;
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} GPOS_AnchorFormat2;
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typedef struct {
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WORD AnchorFormat;
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WORD XCoordinate;
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WORD YCoordinate;
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WORD XDeviceTable;
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WORD YDeviceTable;
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} GPOS_AnchorFormat3;
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typedef struct {
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WORD XPlacement;
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WORD YPlacement;
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WORD XAdvance;
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WORD YAdvance;
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WORD XPlaDevice;
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WORD YPlaDevice;
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WORD XAdvDevice;
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WORD YAdvDevice;
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} GPOS_ValueRecord;
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typedef struct {
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WORD PosFormat;
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WORD Coverage;
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WORD ValueFormat;
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WORD Value[1];
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} GPOS_SinglePosFormat1;
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typedef struct {
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WORD PosFormat;
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WORD Coverage;
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WORD ValueFormat;
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WORD ValueCount;
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WORD Value[1];
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} GPOS_SinglePosFormat2;
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typedef struct {
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WORD PosFormat;
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WORD Coverage;
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WORD ValueFormat1;
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WORD ValueFormat2;
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WORD PairSetCount;
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WORD PairSetOffset[1];
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} GPOS_PairPosFormat1;
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typedef struct {
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WORD PosFormat;
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WORD Coverage;
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WORD ValueFormat1;
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WORD ValueFormat2;
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WORD ClassDef1;
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WORD ClassDef2;
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WORD Class1Count;
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WORD Class2Count;
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WORD Class1Record[1];
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} GPOS_PairPosFormat2;
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typedef struct {
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WORD SecondGlyph;
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WORD Value1[1];
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WORD Value2[1];
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} GPOS_PairValueRecord;
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typedef struct {
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WORD PairValueCount;
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GPOS_PairValueRecord PairValueRecord[1];
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} GPOS_PairSet;
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typedef struct {
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WORD PosFormat;
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WORD MarkCoverage;
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WORD BaseCoverage;
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WORD ClassCount;
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WORD MarkArray;
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WORD BaseArray;
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} GPOS_MarkBasePosFormat1;
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typedef struct {
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WORD BaseAnchor[1];
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} GPOS_BaseRecord;
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typedef struct {
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WORD BaseCount;
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GPOS_BaseRecord BaseRecord[1];
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} GPOS_BaseArray;
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typedef struct {
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WORD Class;
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WORD MarkAnchor;
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} GPOS_MarkRecord;
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typedef struct {
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WORD MarkCount;
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GPOS_MarkRecord MarkRecord[1];
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} GPOS_MarkArray;
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typedef struct {
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WORD PosFormat;
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WORD MarkCoverage;
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WORD LigatureCoverage;
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WORD ClassCount;
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WORD MarkArray;
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WORD LigatureArray;
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} GPOS_MarkLigPosFormat1;
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typedef struct {
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WORD LigatureCount;
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WORD LigatureAttach[1];
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} GPOS_LigatureArray;
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typedef struct {
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WORD LigatureAnchor[1];
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} GPOS_ComponentRecord;
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typedef struct {
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WORD ComponentCount;
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GPOS_ComponentRecord ComponentRecord[1];
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} GPOS_LigatureAttach;
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typedef struct {
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WORD PosFormat;
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WORD Mark1Coverage;
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WORD Mark2Coverage;
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WORD ClassCount;
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WORD Mark1Array;
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WORD Mark2Array;
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} GPOS_MarkMarkPosFormat1;
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typedef struct {
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WORD Mark2Anchor[1];
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} GPOS_Mark2Record;
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typedef struct {
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WORD Mark2Count;
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GPOS_Mark2Record Mark2Record[1];
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} GPOS_Mark2Array;
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typedef struct {
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WORD SequenceIndex;
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WORD LookupListIndex;
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} GPOS_PosLookupRecord;
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typedef struct {
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WORD PosFormat;
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WORD BacktrackGlyphCount;
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WORD Coverage[1];
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} GPOS_ChainContextPosFormat3_1;
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typedef struct {
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WORD InputGlyphCount;
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WORD Coverage[1];
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} GPOS_ChainContextPosFormat3_2;
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typedef struct {
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WORD LookaheadGlyphCount;
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WORD Coverage[1];
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} GPOS_ChainContextPosFormat3_3;
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typedef struct {
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WORD PosCount;
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GPOS_PosLookupRecord PosLookupRecord[1];
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} GPOS_ChainContextPosFormat3_4;
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/**********
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* CMAP
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**********/
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static VOID *load_CMAP_format12_table(HDC hdc, ScriptCache *psc)
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{
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CMAP_Header *CMAP_Table = NULL;
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int length;
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int i;
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if (!psc->CMAP_Table)
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{
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length = GetFontData(hdc, CMAP_TAG , 0, NULL, 0);
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if (length != GDI_ERROR)
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{
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psc->CMAP_Table = HeapAlloc(GetProcessHeap(),0,length);
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GetFontData(hdc, CMAP_TAG , 0, psc->CMAP_Table, length);
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TRACE("Loaded cmap table of %i bytes\n",length);
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}
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else
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return NULL;
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}
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CMAP_Table = psc->CMAP_Table;
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for (i = 0; i < GET_BE_WORD(CMAP_Table->numTables); i++)
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{
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if ( (GET_BE_WORD(CMAP_Table->tables[i].platformID) == 3) &&
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(GET_BE_WORD(CMAP_Table->tables[i].encodingID) == 10) )
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{
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CMAP_SegmentedCoverage *format = (CMAP_SegmentedCoverage*)(((BYTE*)CMAP_Table) + GET_BE_DWORD(CMAP_Table->tables[i].offset));
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if (GET_BE_WORD(format->format) == 12)
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return format;
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}
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}
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return NULL;
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}
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static int compare_group(const void *a, const void* b)
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{
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const DWORD *chr = a;
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const CMAP_SegmentedCoverage_group *group = b;
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if (*chr < GET_BE_DWORD(group->startCharCode))
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return -1;
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if (*chr > GET_BE_DWORD(group->endCharCode))
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return 1;
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return 0;
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}
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DWORD OpenType_CMAP_GetGlyphIndex(HDC hdc, ScriptCache *psc, DWORD utf32c, LPWORD pgi, DWORD flags)
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{
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/* BMP: use gdi32 for ease */
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if (utf32c < 0x10000)
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{
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WCHAR ch = utf32c;
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return GetGlyphIndicesW(hdc,&ch, 1, pgi, flags);
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}
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if (!psc->CMAP_format12_Table)
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psc->CMAP_format12_Table = load_CMAP_format12_table(hdc, psc);
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|
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if (flags & GGI_MARK_NONEXISTING_GLYPHS)
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*pgi = 0xffff;
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else
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*pgi = 0;
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|
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if (psc->CMAP_format12_Table)
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{
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CMAP_SegmentedCoverage *format = NULL;
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CMAP_SegmentedCoverage_group *group = NULL;
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|
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format = (CMAP_SegmentedCoverage *)psc->CMAP_format12_Table;
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group = bsearch(&utf32c, format->groups, GET_BE_DWORD(format->nGroups),
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sizeof(CMAP_SegmentedCoverage_group), compare_group);
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if (group)
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{
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DWORD offset = utf32c - GET_BE_DWORD(group->startCharCode);
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*pgi = GET_BE_DWORD(group->startGlyphID) + offset;
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return 0;
|
|
}
|
|
}
|
|
return 0;
|
|
}
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|
|
|
/**********
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|
* GDEF
|
|
**********/
|
|
|
|
static WORD OT_get_glyph_class(const void *table, WORD glyph)
|
|
{
|
|
WORD class = 0;
|
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const OT_ClassDefFormat1 *cf1 = table;
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|
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if (!table) return 0;
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|
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if (GET_BE_WORD(cf1->ClassFormat) == 1)
|
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{
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if (glyph >= GET_BE_WORD(cf1->StartGlyph))
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{
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int index = glyph - GET_BE_WORD(cf1->StartGlyph);
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if (index < GET_BE_WORD(cf1->GlyphCount))
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class = GET_BE_WORD(cf1->ClassValueArray[index]);
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}
|
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}
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else if (GET_BE_WORD(cf1->ClassFormat) == 2)
|
|
{
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const OT_ClassDefFormat2 *cf2 = table;
|
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int i, top;
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top = GET_BE_WORD(cf2->ClassRangeCount);
|
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for (i = 0; i < top; i++)
|
|
{
|
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if (glyph >= GET_BE_WORD(cf2->ClassRangeRecord[i].Start) &&
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glyph <= GET_BE_WORD(cf2->ClassRangeRecord[i].End))
|
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{
|
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class = GET_BE_WORD(cf2->ClassRangeRecord[i].Class);
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break;
|
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}
|
|
}
|
|
}
|
|
else
|
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ERR("Unknown Class Format %i\n",GET_BE_WORD(cf1->ClassFormat));
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|
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return class;
|
|
}
|
|
|
|
static VOID *load_gdef_table(HDC hdc)
|
|
{
|
|
VOID* GDEF_Table = NULL;
|
|
int length = GetFontData(hdc, GDEF_TAG , 0, NULL, 0);
|
|
if (length != GDI_ERROR)
|
|
{
|
|
GDEF_Table = HeapAlloc(GetProcessHeap(),0,length);
|
|
GetFontData(hdc, GDEF_TAG , 0, GDEF_Table, length);
|
|
TRACE("Loaded GDEF table of %i bytes\n",length);
|
|
}
|
|
return GDEF_Table;
|
|
}
|
|
|
|
void OpenType_GDEF_UpdateGlyphProps(HDC hdc, ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, const WORD cChars, SCRIPT_GLYPHPROP *pGlyphProp)
|
|
{
|
|
int i;
|
|
void *glyph_class_table = NULL;
|
|
|
|
if (!psc->GDEF_Table)
|
|
psc->GDEF_Table = load_gdef_table(hdc);
|
|
|
|
if (psc->GDEF_Table)
|
|
{
|
|
const GDEF_Header *header = psc->GDEF_Table;
|
|
WORD offset = GET_BE_WORD( header->GlyphClassDef );
|
|
if (offset)
|
|
glyph_class_table = (BYTE *)psc->GDEF_Table + offset;
|
|
}
|
|
|
|
for (i = 0; i < cGlyphs; i++)
|
|
{
|
|
WORD class;
|
|
int char_count = 0;
|
|
int k;
|
|
|
|
k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i);
|
|
if (k >= 0)
|
|
{
|
|
for (; k < cChars && pwLogClust[k] == i; k++)
|
|
char_count++;
|
|
}
|
|
|
|
class = OT_get_glyph_class( glyph_class_table, pwGlyphs[i] );
|
|
|
|
switch (class)
|
|
{
|
|
case 0:
|
|
case BaseGlyph:
|
|
pGlyphProp[i].sva.fClusterStart = 1;
|
|
pGlyphProp[i].sva.fDiacritic = 0;
|
|
pGlyphProp[i].sva.fZeroWidth = 0;
|
|
break;
|
|
case LigatureGlyph:
|
|
pGlyphProp[i].sva.fClusterStart = 1;
|
|
pGlyphProp[i].sva.fDiacritic = 0;
|
|
pGlyphProp[i].sva.fZeroWidth = 0;
|
|
break;
|
|
case MarkGlyph:
|
|
pGlyphProp[i].sva.fClusterStart = 0;
|
|
pGlyphProp[i].sva.fDiacritic = 1;
|
|
pGlyphProp[i].sva.fZeroWidth = 1;
|
|
break;
|
|
case ComponentGlyph:
|
|
pGlyphProp[i].sva.fClusterStart = 0;
|
|
pGlyphProp[i].sva.fDiacritic = 0;
|
|
pGlyphProp[i].sva.fZeroWidth = 0;
|
|
break;
|
|
default:
|
|
ERR("Unknown glyph class %i\n",class);
|
|
pGlyphProp[i].sva.fClusterStart = 1;
|
|
pGlyphProp[i].sva.fDiacritic = 0;
|
|
pGlyphProp[i].sva.fZeroWidth = 0;
|
|
}
|
|
|
|
if (char_count == 0)
|
|
pGlyphProp[i].sva.fClusterStart = 0;
|
|
}
|
|
}
|
|
|
|
/**********
|
|
* GSUB
|
|
**********/
|
|
static INT GSUB_apply_lookup(const OT_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count);
|
|
|
|
static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph)
|
|
{
|
|
const OT_CoverageFormat1* cf1;
|
|
|
|
cf1 = table;
|
|
|
|
if (GET_BE_WORD(cf1->CoverageFormat) == 1)
|
|
{
|
|
int count = GET_BE_WORD(cf1->GlyphCount);
|
|
int i;
|
|
TRACE("Coverage Format 1, %i glyphs\n",count);
|
|
for (i = 0; i < count; i++)
|
|
if (glyph == GET_BE_WORD(cf1->GlyphArray[i]))
|
|
return i;
|
|
return -1;
|
|
}
|
|
else if (GET_BE_WORD(cf1->CoverageFormat) == 2)
|
|
{
|
|
const OT_CoverageFormat2* cf2;
|
|
int i;
|
|
int count;
|
|
cf2 = (const OT_CoverageFormat2*)cf1;
|
|
|
|
count = GET_BE_WORD(cf2->RangeCount);
|
|
TRACE("Coverage Format 2, %i ranges\n",count);
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
if (glyph < GET_BE_WORD(cf2->RangeRecord[i].Start))
|
|
return -1;
|
|
if ((glyph >= GET_BE_WORD(cf2->RangeRecord[i].Start)) &&
|
|
(glyph <= GET_BE_WORD(cf2->RangeRecord[i].End)))
|
|
{
|
|
return (GET_BE_WORD(cf2->RangeRecord[i].StartCoverageIndex) +
|
|
glyph - GET_BE_WORD(cf2->RangeRecord[i].Start));
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
else
|
|
ERR("Unknown CoverageFormat %i\n",GET_BE_WORD(cf1->CoverageFormat));
|
|
|
|
return -1;
|
|
}
|
|
|
|
static INT GSUB_apply_SingleSubst(const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
int j;
|
|
TRACE("Single Substitution Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset;
|
|
const GSUB_SingleSubstFormat1 *ssf1;
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
ssf1 = (const GSUB_SingleSubstFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(ssf1->SubstFormat) == 1)
|
|
{
|
|
int offset = GET_BE_WORD(ssf1->Coverage);
|
|
TRACE(" subtype 1, delta %i\n", GET_BE_WORD(ssf1->DeltaGlyphID));
|
|
if (GSUB_is_glyph_covered((const BYTE*)ssf1+offset, glyphs[glyph_index]) != -1)
|
|
{
|
|
TRACE(" Glyph 0x%x ->",glyphs[glyph_index]);
|
|
glyphs[glyph_index] = glyphs[glyph_index] + GET_BE_WORD(ssf1->DeltaGlyphID);
|
|
TRACE(" 0x%x\n",glyphs[glyph_index]);
|
|
return glyph_index + write_dir;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const GSUB_SingleSubstFormat2 *ssf2;
|
|
INT index;
|
|
INT offset;
|
|
|
|
ssf2 = (const GSUB_SingleSubstFormat2 *)ssf1;
|
|
offset = GET_BE_WORD(ssf1->Coverage);
|
|
TRACE(" subtype 2, glyph count %i\n", GET_BE_WORD(ssf2->GlyphCount));
|
|
index = GSUB_is_glyph_covered((const BYTE*)ssf2+offset, glyphs[glyph_index]);
|
|
TRACE(" Coverage index %i\n",index);
|
|
if (index != -1)
|
|
{
|
|
if (glyphs[glyph_index] == GET_BE_WORD(ssf2->Substitute[index]))
|
|
return GSUB_E_NOGLYPH;
|
|
|
|
TRACE(" Glyph is 0x%x ->",glyphs[glyph_index]);
|
|
glyphs[glyph_index] = GET_BE_WORD(ssf2->Substitute[index]);
|
|
TRACE("0x%x\n",glyphs[glyph_index]);
|
|
return glyph_index + write_dir;
|
|
}
|
|
}
|
|
}
|
|
return GSUB_E_NOGLYPH;
|
|
}
|
|
|
|
static INT GSUB_apply_MultipleSubst(const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
int j;
|
|
TRACE("Multiple Substitution Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset, index;
|
|
const GSUB_MultipleSubstFormat1 *msf1;
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
msf1 = (const GSUB_MultipleSubstFormat1*)((const BYTE*)look+offset);
|
|
|
|
offset = GET_BE_WORD(msf1->Coverage);
|
|
index = GSUB_is_glyph_covered((const BYTE*)msf1+offset, glyphs[glyph_index]);
|
|
if (index != -1)
|
|
{
|
|
const GSUB_Sequence *seq;
|
|
int sub_count;
|
|
int j;
|
|
offset = GET_BE_WORD(msf1->Sequence[index]);
|
|
seq = (const GSUB_Sequence*)((const BYTE*)msf1+offset);
|
|
sub_count = GET_BE_WORD(seq->GlyphCount);
|
|
TRACE(" Glyph 0x%x (+%i)->",glyphs[glyph_index],(sub_count-1));
|
|
|
|
for (j = (*glyph_count)+(sub_count-1); j > glyph_index; j--)
|
|
glyphs[j] =glyphs[j-(sub_count-1)];
|
|
|
|
for (j = 0; j < sub_count; j++)
|
|
if (write_dir < 0)
|
|
glyphs[glyph_index + (sub_count-1) - j] = GET_BE_WORD(seq->Substitute[j]);
|
|
else
|
|
glyphs[glyph_index + j] = GET_BE_WORD(seq->Substitute[j]);
|
|
|
|
*glyph_count = *glyph_count + (sub_count - 1);
|
|
|
|
if (TRACE_ON(uniscribe))
|
|
{
|
|
for (j = 0; j < sub_count; j++)
|
|
TRACE(" 0x%x",glyphs[glyph_index+j]);
|
|
TRACE("\n");
|
|
}
|
|
|
|
return glyph_index + (sub_count * write_dir);
|
|
}
|
|
}
|
|
return GSUB_E_NOGLYPH;
|
|
}
|
|
|
|
static INT GSUB_apply_AlternateSubst(const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
int j;
|
|
TRACE("Alternate Substitution Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset;
|
|
const GSUB_AlternateSubstFormat1 *asf1;
|
|
INT index;
|
|
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
asf1 = (const GSUB_AlternateSubstFormat1*)((const BYTE*)look+offset);
|
|
offset = GET_BE_WORD(asf1->Coverage);
|
|
|
|
index = GSUB_is_glyph_covered((const BYTE*)asf1+offset, glyphs[glyph_index]);
|
|
if (index != -1)
|
|
{
|
|
const GSUB_AlternateSet *as;
|
|
offset = GET_BE_WORD(asf1->AlternateSet[index]);
|
|
as = (const GSUB_AlternateSet*)((const BYTE*)asf1+offset);
|
|
FIXME("%i alternates, picking index 0\n",GET_BE_WORD(as->GlyphCount));
|
|
if (glyphs[glyph_index] == GET_BE_WORD(as->Alternate[0]))
|
|
return GSUB_E_NOGLYPH;
|
|
|
|
TRACE(" Glyph 0x%x ->",glyphs[glyph_index]);
|
|
glyphs[glyph_index] = GET_BE_WORD(as->Alternate[0]);
|
|
TRACE(" 0x%x\n",glyphs[glyph_index]);
|
|
return glyph_index + write_dir;
|
|
}
|
|
}
|
|
return GSUB_E_NOGLYPH;
|
|
}
|
|
|
|
static INT GSUB_apply_LigatureSubst(const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
int j;
|
|
|
|
TRACE("Ligature Substitution Subtable\n");
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
const GSUB_LigatureSubstFormat1 *lsf1;
|
|
int offset,index;
|
|
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
lsf1 = (const GSUB_LigatureSubstFormat1*)((const BYTE*)look+offset);
|
|
offset = GET_BE_WORD(lsf1->Coverage);
|
|
index = GSUB_is_glyph_covered((const BYTE*)lsf1+offset, glyphs[glyph_index]);
|
|
TRACE(" Coverage index %i\n",index);
|
|
if (index != -1)
|
|
{
|
|
const GSUB_LigatureSet *ls;
|
|
int k, count;
|
|
|
|
offset = GET_BE_WORD(lsf1->LigatureSet[index]);
|
|
ls = (const GSUB_LigatureSet*)((const BYTE*)lsf1+offset);
|
|
count = GET_BE_WORD(ls->LigatureCount);
|
|
TRACE(" LigatureSet has %i members\n",count);
|
|
for (k = 0; k < count; k++)
|
|
{
|
|
const GSUB_Ligature *lig;
|
|
int CompCount,l,CompIndex;
|
|
|
|
offset = GET_BE_WORD(ls->Ligature[k]);
|
|
lig = (const GSUB_Ligature*)((const BYTE*)ls+offset);
|
|
CompCount = GET_BE_WORD(lig->CompCount) - 1;
|
|
CompIndex = glyph_index+write_dir;
|
|
for (l = 0; l < CompCount && CompIndex >= 0 && CompIndex < *glyph_count; l++)
|
|
{
|
|
int CompGlyph;
|
|
CompGlyph = GET_BE_WORD(lig->Component[l]);
|
|
if (CompGlyph != glyphs[CompIndex])
|
|
break;
|
|
CompIndex += write_dir;
|
|
}
|
|
if (l == CompCount)
|
|
{
|
|
int replaceIdx = glyph_index;
|
|
if (write_dir < 0)
|
|
replaceIdx = glyph_index - CompCount;
|
|
|
|
TRACE(" Glyph is 0x%x (+%i) ->",glyphs[glyph_index],CompCount);
|
|
glyphs[replaceIdx] = GET_BE_WORD(lig->LigGlyph);
|
|
TRACE("0x%x\n",glyphs[replaceIdx]);
|
|
if (CompCount > 0)
|
|
{
|
|
int j;
|
|
for (j = replaceIdx + 1; j < *glyph_count; j++)
|
|
glyphs[j] =glyphs[j+CompCount];
|
|
*glyph_count = *glyph_count - CompCount;
|
|
}
|
|
return replaceIdx + write_dir;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return GSUB_E_NOGLYPH;
|
|
}
|
|
|
|
static INT GSUB_apply_ChainContextSubst(const OT_LookupList* lookup, const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
int j;
|
|
BOOL done = FALSE;
|
|
|
|
TRACE("Chaining Contextual Substitution Subtable\n");
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount) && !done; j++)
|
|
{
|
|
const GSUB_ChainContextSubstFormat1 *ccsf1;
|
|
int offset;
|
|
int dirLookahead = write_dir;
|
|
int dirBacktrack = -1 * write_dir;
|
|
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
ccsf1 = (const GSUB_ChainContextSubstFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(ccsf1->SubstFormat) == 1)
|
|
{
|
|
FIXME(" TODO: subtype 1 (Simple context glyph substitution)\n");
|
|
continue;
|
|
}
|
|
else if (GET_BE_WORD(ccsf1->SubstFormat) == 2)
|
|
{
|
|
FIXME(" TODO: subtype 2 (Class-based Chaining Context Glyph Substitution)\n");
|
|
continue;
|
|
}
|
|
else if (GET_BE_WORD(ccsf1->SubstFormat) == 3)
|
|
{
|
|
int k;
|
|
int indexGlyphs;
|
|
const GSUB_ChainContextSubstFormat3_1 *ccsf3_1;
|
|
const GSUB_ChainContextSubstFormat3_2 *ccsf3_2;
|
|
const GSUB_ChainContextSubstFormat3_3 *ccsf3_3;
|
|
const GSUB_ChainContextSubstFormat3_4 *ccsf3_4;
|
|
int newIndex = glyph_index;
|
|
|
|
ccsf3_1 = (const GSUB_ChainContextSubstFormat3_1 *)ccsf1;
|
|
|
|
TRACE(" subtype 3 (Coverage-based Chaining Context Glyph Substitution)\n");
|
|
|
|
for (k = 0; k < GET_BE_WORD(ccsf3_1->BacktrackGlyphCount); k++)
|
|
{
|
|
offset = GET_BE_WORD(ccsf3_1->Coverage[k]);
|
|
if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (dirBacktrack * (k+1))]) == -1)
|
|
break;
|
|
}
|
|
if (k != GET_BE_WORD(ccsf3_1->BacktrackGlyphCount))
|
|
continue;
|
|
TRACE("Matched Backtrack\n");
|
|
|
|
ccsf3_2 = (const GSUB_ChainContextSubstFormat3_2 *)((BYTE *)ccsf1 +
|
|
FIELD_OFFSET(GSUB_ChainContextSubstFormat3_1, Coverage[GET_BE_WORD(ccsf3_1->BacktrackGlyphCount)]));
|
|
|
|
indexGlyphs = GET_BE_WORD(ccsf3_2->InputGlyphCount);
|
|
for (k = 0; k < indexGlyphs; k++)
|
|
{
|
|
offset = GET_BE_WORD(ccsf3_2->Coverage[k]);
|
|
if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (write_dir * k)]) == -1)
|
|
break;
|
|
}
|
|
if (k != indexGlyphs)
|
|
continue;
|
|
TRACE("Matched IndexGlyphs\n");
|
|
|
|
ccsf3_3 = (const GSUB_ChainContextSubstFormat3_3 *)((BYTE *)ccsf3_2 +
|
|
FIELD_OFFSET(GSUB_ChainContextSubstFormat3_2, Coverage[GET_BE_WORD(ccsf3_2->InputGlyphCount)]));
|
|
|
|
for (k = 0; k < GET_BE_WORD(ccsf3_3->LookaheadGlyphCount); k++)
|
|
{
|
|
offset = GET_BE_WORD(ccsf3_3->Coverage[k]);
|
|
if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (dirLookahead * (indexGlyphs + k))]) == -1)
|
|
break;
|
|
}
|
|
if (k != GET_BE_WORD(ccsf3_3->LookaheadGlyphCount))
|
|
continue;
|
|
TRACE("Matched LookAhead\n");
|
|
|
|
ccsf3_4 = (const GSUB_ChainContextSubstFormat3_4 *)((BYTE *)ccsf3_3 +
|
|
FIELD_OFFSET(GSUB_ChainContextSubstFormat3_3, Coverage[GET_BE_WORD(ccsf3_3->LookaheadGlyphCount)]));
|
|
|
|
if (GET_BE_WORD(ccsf3_4->SubstCount))
|
|
{
|
|
for (k = 0; k < GET_BE_WORD(ccsf3_4->SubstCount); k++)
|
|
{
|
|
int lookupIndex = GET_BE_WORD(ccsf3_4->SubstLookupRecord[k].LookupListIndex);
|
|
int SequenceIndex = GET_BE_WORD(ccsf3_4->SubstLookupRecord[k].SequenceIndex) * write_dir;
|
|
|
|
TRACE("SUBST: %i -> %i %i\n",k, SequenceIndex, lookupIndex);
|
|
newIndex = GSUB_apply_lookup(lookup, lookupIndex, glyphs, glyph_index + SequenceIndex, write_dir, glyph_count);
|
|
if (newIndex == -1)
|
|
{
|
|
ERR("Chain failed to generate a glyph\n");
|
|
continue;
|
|
}
|
|
}
|
|
return newIndex;
|
|
}
|
|
else return GSUB_E_NOGLYPH;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static INT GSUB_apply_lookup(const OT_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
int offset;
|
|
const OT_LookupTable *look;
|
|
|
|
offset = GET_BE_WORD(lookup->Lookup[lookup_index]);
|
|
look = (const OT_LookupTable*)((const BYTE*)lookup + offset);
|
|
TRACE("type %i, flag %x, subtables %i\n",GET_BE_WORD(look->LookupType),GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount));
|
|
switch(GET_BE_WORD(look->LookupType))
|
|
{
|
|
case 1:
|
|
return GSUB_apply_SingleSubst(look, glyphs, glyph_index, write_dir, glyph_count);
|
|
case 2:
|
|
return GSUB_apply_MultipleSubst(look, glyphs, glyph_index, write_dir, glyph_count);
|
|
case 3:
|
|
return GSUB_apply_AlternateSubst(look, glyphs, glyph_index, write_dir, glyph_count);
|
|
case 4:
|
|
return GSUB_apply_LigatureSubst(look, glyphs, glyph_index, write_dir, glyph_count);
|
|
case 6:
|
|
return GSUB_apply_ChainContextSubst(lookup, look, glyphs, glyph_index, write_dir, glyph_count);
|
|
default:
|
|
FIXME("We do not handle SubType %i\n",GET_BE_WORD(look->LookupType));
|
|
}
|
|
return GSUB_E_NOGLYPH;
|
|
}
|
|
|
|
INT OpenType_apply_GSUB_lookup(LPCVOID table, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
|
{
|
|
const GSUB_Header *header = (const GSUB_Header *)table;
|
|
const OT_LookupList *lookup = (const OT_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList));
|
|
|
|
return GSUB_apply_lookup(lookup, lookup_index, glyphs, glyph_index, write_dir, glyph_count);
|
|
}
|
|
|
|
/**********
|
|
* GPOS
|
|
**********/
|
|
static INT GPOS_apply_lookup(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, INT* piAdvance, const OT_LookupList* lookup, INT lookup_index, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, GOFFSET *pGoffset);
|
|
|
|
static INT GPOS_get_device_table_value(const OT_DeviceTable *DeviceTable, WORD ppem)
|
|
{
|
|
static const WORD mask[3] = {3,0xf,0xff};
|
|
if (DeviceTable && ppem >= GET_BE_WORD(DeviceTable->StartSize) && ppem <= GET_BE_WORD(DeviceTable->EndSize))
|
|
{
|
|
int format = GET_BE_WORD(DeviceTable->DeltaFormat);
|
|
int index = ppem - GET_BE_WORD(DeviceTable->StartSize);
|
|
int value;
|
|
TRACE("device table, format %i, index %i\n",format, index);
|
|
index = index << format;
|
|
value = (DeviceTable->DeltaValue[index/sizeof(WORD)] << (index%sizeof(WORD)))&mask[format-1];
|
|
TRACE("offset %i, value %i\n",index, value);
|
|
if (value > mask[format-1]/2)
|
|
value = -1 * ((mask[format-1]+1) - value);
|
|
return value;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static VOID GPOS_get_anchor_values(LPCVOID table, LPPOINT pt, WORD ppem)
|
|
{
|
|
const GPOS_AnchorFormat1* anchor1 = (const GPOS_AnchorFormat1*)table;
|
|
|
|
switch (GET_BE_WORD(anchor1->AnchorFormat))
|
|
{
|
|
case 1:
|
|
{
|
|
TRACE("Anchor Format 1\n");
|
|
pt->x = (short)GET_BE_WORD(anchor1->XCoordinate);
|
|
pt->y = (short)GET_BE_WORD(anchor1->YCoordinate);
|
|
break;
|
|
}
|
|
case 2:
|
|
{
|
|
const GPOS_AnchorFormat2* anchor2 = (const GPOS_AnchorFormat2*)table;
|
|
TRACE("Anchor Format 2\n");
|
|
pt->x = (short)GET_BE_WORD(anchor2->XCoordinate);
|
|
pt->y = (short)GET_BE_WORD(anchor2->YCoordinate);
|
|
break;
|
|
}
|
|
case 3:
|
|
{
|
|
int offset;
|
|
const GPOS_AnchorFormat3* anchor3 = (const GPOS_AnchorFormat3*)table;
|
|
TRACE("Anchor Format 3\n");
|
|
pt->x = (short)GET_BE_WORD(anchor3->XCoordinate);
|
|
pt->y = (short)GET_BE_WORD(anchor3->YCoordinate);
|
|
offset = GET_BE_WORD(anchor3->XDeviceTable);
|
|
TRACE("ppem %i\n",ppem);
|
|
if (offset)
|
|
{
|
|
const OT_DeviceTable* DeviceTableX = NULL;
|
|
DeviceTableX = (const OT_DeviceTable*)((const BYTE*)anchor3 + offset);
|
|
pt->x += GPOS_get_device_table_value(DeviceTableX, ppem);
|
|
}
|
|
offset = GET_BE_WORD(anchor3->YDeviceTable);
|
|
if (offset)
|
|
{
|
|
const OT_DeviceTable* DeviceTableY = NULL;
|
|
DeviceTableY = (const OT_DeviceTable*)((const BYTE*)anchor3 + offset);
|
|
pt->y += GPOS_get_device_table_value(DeviceTableY, ppem);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
ERR("Unknown Anchor Format %i\n",GET_BE_WORD(anchor1->AnchorFormat));
|
|
pt->x = 0;
|
|
pt->y = 0;
|
|
}
|
|
}
|
|
|
|
static void GPOS_convert_design_units_to_device(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, int desX, int desY, double *devX, double *devY)
|
|
{
|
|
int emHeight = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading;
|
|
|
|
TRACE("emHeight %i lfWidth %i\n",emHeight, lplogfont->lfWidth);
|
|
*devX = (desX * emHeight) / (double)lpotm->otmEMSquare;
|
|
*devY = (desY * emHeight) / (double)lpotm->otmEMSquare;
|
|
if (lplogfont->lfWidth)
|
|
FIXME("Font with lfWidth set no handled properly\n");
|
|
}
|
|
|
|
static INT GPOS_get_value_record(WORD ValueFormat, const WORD data[], GPOS_ValueRecord *record)
|
|
{
|
|
INT offset = 0;
|
|
if (ValueFormat & 0x0001) { if (data) record->XPlacement = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0002) { if (data) record->YPlacement = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0004) { if (data) record->XAdvance = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0008) { if (data) record->YAdvance = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0010) { if (data) record->XPlaDevice = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0020) { if (data) record->YPlaDevice = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0040) { if (data) record->XAdvDevice = GET_BE_WORD(data[offset]); offset++; }
|
|
if (ValueFormat & 0x0080) { if (data) record->YAdvDevice = GET_BE_WORD(data[offset]); offset++; }
|
|
return offset;
|
|
}
|
|
|
|
static VOID GPOS_get_value_record_offsets(const BYTE* head, GPOS_ValueRecord *ValueRecord, WORD ValueFormat, INT ppem, LPPOINT ptPlacement, LPPOINT ptAdvance)
|
|
{
|
|
if (ValueFormat & 0x0001) ptPlacement->x += (short)ValueRecord->XPlacement;
|
|
if (ValueFormat & 0x0002) ptPlacement->y += (short)ValueRecord->YPlacement;
|
|
if (ValueFormat & 0x0004) ptAdvance->x += (short)ValueRecord->XAdvance;
|
|
if (ValueFormat & 0x0008) ptAdvance->y += (short)ValueRecord->YAdvance;
|
|
if (ValueFormat & 0x0010) ptPlacement->x += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->XPlaDevice), ppem);
|
|
if (ValueFormat & 0x0020) ptPlacement->y += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->YPlaDevice), ppem);
|
|
if (ValueFormat & 0x0040) ptAdvance->x += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->XAdvDevice), ppem);
|
|
if (ValueFormat & 0x0080) ptAdvance->y += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->YAdvDevice), ppem);
|
|
if (ValueFormat & 0xFF00) FIXME("Unhandled Value Format %x\n",ValueFormat&0xFF00);
|
|
}
|
|
|
|
static VOID GPOS_apply_SingleAdjustment(const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, INT ppem, LPPOINT ptAdjust, LPPOINT ptAdvance)
|
|
{
|
|
int j;
|
|
|
|
TRACE("Single Adjustment Positioning Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
const GPOS_SinglePosFormat1 *spf1;
|
|
WORD offset = GET_BE_WORD(look->SubTable[j]);
|
|
spf1 = (const GPOS_SinglePosFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(spf1->PosFormat) == 1)
|
|
{
|
|
offset = GET_BE_WORD(spf1->Coverage);
|
|
if (GSUB_is_glyph_covered((const BYTE*)spf1+offset, glyphs[glyph_index]) != -1)
|
|
{
|
|
GPOS_ValueRecord ValueRecord = {0,0,0,0,0,0,0,0};
|
|
WORD ValueFormat = GET_BE_WORD(spf1->ValueFormat);
|
|
GPOS_get_value_record(ValueFormat, spf1->Value, &ValueRecord);
|
|
GPOS_get_value_record_offsets((const BYTE*)spf1, &ValueRecord, ValueFormat, ppem, ptAdjust, ptAdvance);
|
|
TRACE("Glyph Adjusted by %i,%i\n",ValueRecord.XPlacement,ValueRecord.YPlacement);
|
|
}
|
|
}
|
|
else if (GET_BE_WORD(spf1->PosFormat) == 2)
|
|
{
|
|
int index;
|
|
const GPOS_SinglePosFormat2 *spf2;
|
|
spf2 = (const GPOS_SinglePosFormat2*)spf1;
|
|
offset = GET_BE_WORD(spf2->Coverage);
|
|
index = GSUB_is_glyph_covered((const BYTE*)spf2+offset, glyphs[glyph_index]);
|
|
if (index != -1)
|
|
{
|
|
int size;
|
|
GPOS_ValueRecord ValueRecord = {0,0,0,0,0,0,0,0};
|
|
WORD ValueFormat = GET_BE_WORD(spf2->ValueFormat);
|
|
size = GPOS_get_value_record(ValueFormat, spf2->Value, &ValueRecord);
|
|
if (index > 0)
|
|
{
|
|
offset = size * index;
|
|
GPOS_get_value_record(ValueFormat, &spf2->Value[offset], &ValueRecord);
|
|
}
|
|
GPOS_get_value_record_offsets((const BYTE*)spf2, &ValueRecord, ValueFormat, ppem, ptAdjust, ptAdvance);
|
|
TRACE("Glyph Adjusted by %i,%i\n",ValueRecord.XPlacement,ValueRecord.YPlacement);
|
|
}
|
|
}
|
|
else
|
|
FIXME("Single Adjustment Positioning: Format %i Unhandled\n",GET_BE_WORD(spf1->PosFormat));
|
|
}
|
|
}
|
|
|
|
static void apply_pair_value( const void *pos_table, WORD val_fmt1, WORD val_fmt2, const WORD *pair,
|
|
INT ppem, POINT *adjust, POINT *advance )
|
|
{
|
|
GPOS_ValueRecord val_rec1 = {0,0,0,0,0,0,0,0};
|
|
GPOS_ValueRecord val_rec2 = {0,0,0,0,0,0,0,0};
|
|
INT size;
|
|
|
|
size = GPOS_get_value_record( val_fmt1, pair, &val_rec1 );
|
|
GPOS_get_value_record( val_fmt2, pair + size, &val_rec2 );
|
|
|
|
if (val_fmt1)
|
|
{
|
|
GPOS_get_value_record_offsets( pos_table, &val_rec1, val_fmt1, ppem, adjust, advance );
|
|
TRACE( "Glyph 1 resulting cumulative offset is %i,%i design units\n", adjust[0].x, adjust[0].y );
|
|
TRACE( "Glyph 1 resulting cumulative advance is %i,%i design units\n", advance[0].x, advance[0].y );
|
|
}
|
|
if (val_fmt2)
|
|
{
|
|
GPOS_get_value_record_offsets( pos_table, &val_rec2, val_fmt2, ppem, adjust + 1, advance + 1 );
|
|
TRACE( "Glyph 2 resulting cumulative offset is %i,%i design units\n", adjust[1].x, adjust[1].y );
|
|
TRACE( "Glyph 2 resulting cumulative advance is %i,%i design units\n", advance[1].x, advance[1].y );
|
|
}
|
|
}
|
|
|
|
static INT GPOS_apply_PairAdjustment(const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, INT ppem, LPPOINT ptAdjust, LPPOINT ptAdvance)
|
|
{
|
|
int j;
|
|
|
|
TRACE("Pair Adjustment Positioning Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
const GPOS_PairPosFormat1 *ppf1;
|
|
WORD offset = GET_BE_WORD(look->SubTable[j]);
|
|
ppf1 = (const GPOS_PairPosFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(ppf1->PosFormat) == 1)
|
|
{
|
|
int index;
|
|
WORD ValueFormat1 = GET_BE_WORD(ppf1->ValueFormat1);
|
|
WORD ValueFormat2 = GET_BE_WORD(ppf1->ValueFormat2);
|
|
INT val_fmt1_size = GPOS_get_value_record( ValueFormat1, NULL, NULL );
|
|
INT val_fmt2_size = GPOS_get_value_record( ValueFormat2, NULL, NULL );
|
|
offset = GET_BE_WORD(ppf1->Coverage);
|
|
index = GSUB_is_glyph_covered((const BYTE*)ppf1+offset, glyphs[glyph_index]);
|
|
if (index != -1 && index < GET_BE_WORD(ppf1->PairSetCount))
|
|
{
|
|
int k;
|
|
int pair_count;
|
|
const GPOS_PairSet *ps;
|
|
const GPOS_PairValueRecord *pair_val_rec;
|
|
offset = GET_BE_WORD(ppf1->PairSetOffset[index]);
|
|
ps = (const GPOS_PairSet*)((const BYTE*)ppf1+offset);
|
|
pair_count = GET_BE_WORD(ps->PairValueCount);
|
|
pair_val_rec = ps->PairValueRecord;
|
|
for (k = 0; k < pair_count; k++)
|
|
{
|
|
WORD second_glyph = GET_BE_WORD(pair_val_rec->SecondGlyph);
|
|
if (glyphs[glyph_index+write_dir] == second_glyph)
|
|
{
|
|
int next = 1;
|
|
TRACE("Format 1: Found Pair %x,%x\n",glyphs[glyph_index],glyphs[glyph_index+write_dir]);
|
|
apply_pair_value( ppf1, ValueFormat1, ValueFormat2, pair_val_rec->Value1, ppem, ptAdjust, ptAdvance );
|
|
if (ValueFormat2) next++;
|
|
return glyph_index + next;
|
|
}
|
|
pair_val_rec = (const GPOS_PairValueRecord *)(pair_val_rec->Value1 + val_fmt1_size + val_fmt2_size);
|
|
}
|
|
}
|
|
}
|
|
else if (GET_BE_WORD(ppf1->PosFormat) == 2)
|
|
{
|
|
const GPOS_PairPosFormat2 *ppf2 = (const GPOS_PairPosFormat2*)((const BYTE*)look + offset);
|
|
int index;
|
|
WORD ValueFormat1 = GET_BE_WORD( ppf2->ValueFormat1 );
|
|
WORD ValueFormat2 = GET_BE_WORD( ppf2->ValueFormat2 );
|
|
INT val_fmt1_size = GPOS_get_value_record( ValueFormat1, NULL, NULL );
|
|
INT val_fmt2_size = GPOS_get_value_record( ValueFormat2, NULL, NULL );
|
|
WORD class1_count = GET_BE_WORD( ppf2->Class1Count );
|
|
WORD class2_count = GET_BE_WORD( ppf2->Class2Count );
|
|
|
|
offset = GET_BE_WORD( ppf2->Coverage );
|
|
index = GSUB_is_glyph_covered( (const BYTE*)ppf2 + offset, glyphs[glyph_index] );
|
|
if (index != -1)
|
|
{
|
|
WORD class1, class2;
|
|
class1 = OT_get_glyph_class( (const BYTE *)ppf2 + GET_BE_WORD(ppf2->ClassDef1), glyphs[glyph_index] );
|
|
class2 = OT_get_glyph_class( (const BYTE *)ppf2 + GET_BE_WORD(ppf2->ClassDef2), glyphs[glyph_index + write_dir] );
|
|
if (class1 < class1_count && class2 < class2_count)
|
|
{
|
|
const WORD *pair_val = ppf2->Class1Record + (class1 * class2_count + class2) * (val_fmt1_size + val_fmt2_size);
|
|
int next = 1;
|
|
|
|
TRACE( "Format 2: Found Pair %x,%x\n", glyphs[glyph_index], glyphs[glyph_index + write_dir] );
|
|
|
|
apply_pair_value( ppf2, ValueFormat1, ValueFormat2, pair_val, ppem, ptAdjust, ptAdvance );
|
|
if (ValueFormat2) next++;
|
|
return glyph_index + next;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
FIXME("Pair Adjustment Positioning: Format %i Unhandled\n",GET_BE_WORD(ppf1->PosFormat));
|
|
}
|
|
return glyph_index+1;
|
|
}
|
|
|
|
static VOID GPOS_apply_MarkToBase(const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, INT ppem, LPPOINT pt)
|
|
{
|
|
int j;
|
|
|
|
TRACE("MarkToBase Attachment Positioning Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset;
|
|
const GPOS_MarkBasePosFormat1 *mbpf1;
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
mbpf1 = (const GPOS_MarkBasePosFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(mbpf1->PosFormat) == 1)
|
|
{
|
|
int offset = GET_BE_WORD(mbpf1->MarkCoverage);
|
|
int mark_index;
|
|
mark_index = GSUB_is_glyph_covered((const BYTE*)mbpf1+offset, glyphs[glyph_index]);
|
|
if (mark_index != -1)
|
|
{
|
|
int base_index;
|
|
offset = GET_BE_WORD(mbpf1->BaseCoverage);
|
|
base_index = GSUB_is_glyph_covered((const BYTE*)mbpf1+offset, glyphs[glyph_index - write_dir]);
|
|
if (base_index != -1)
|
|
{
|
|
const GPOS_MarkArray *ma;
|
|
const GPOS_MarkRecord *mr;
|
|
const GPOS_BaseArray *ba;
|
|
const GPOS_BaseRecord *br;
|
|
int mark_class;
|
|
int class_count = GET_BE_WORD(mbpf1->ClassCount);
|
|
int baserecord_size;
|
|
POINT base_pt;
|
|
POINT mark_pt;
|
|
TRACE("Mark %x(%i) and base %x(%i)\n",glyphs[glyph_index], mark_index, glyphs[glyph_index - write_dir], base_index);
|
|
offset = GET_BE_WORD(mbpf1->MarkArray);
|
|
ma = (const GPOS_MarkArray*)((const BYTE*)mbpf1 + offset);
|
|
if (mark_index > GET_BE_WORD(ma->MarkCount))
|
|
{
|
|
ERR("Mark index exeeded mark count\n");
|
|
return;
|
|
}
|
|
mr = &ma->MarkRecord[mark_index];
|
|
mark_class = GET_BE_WORD(mr->Class);
|
|
TRACE("Mark Class %i total classes %i\n",mark_class,class_count);
|
|
offset = GET_BE_WORD(mbpf1->BaseArray);
|
|
ba = (const GPOS_BaseArray*)((const BYTE*)mbpf1 + offset);
|
|
baserecord_size = class_count * sizeof(WORD);
|
|
br = (const GPOS_BaseRecord*)((const BYTE*)ba + sizeof(WORD) + (baserecord_size * base_index));
|
|
offset = GET_BE_WORD(br->BaseAnchor[mark_class]);
|
|
GPOS_get_anchor_values((const BYTE*)ba + offset, &base_pt, ppem);
|
|
offset = GET_BE_WORD(mr->MarkAnchor);
|
|
GPOS_get_anchor_values((const BYTE*)ma + offset, &mark_pt, ppem);
|
|
TRACE("Offset on base is %i,%i design units\n",base_pt.x,base_pt.y);
|
|
TRACE("Offset on mark is %i,%i design units\n",mark_pt.x, mark_pt.y);
|
|
pt->x += base_pt.x - mark_pt.x;
|
|
pt->y += base_pt.y - mark_pt.y;
|
|
TRACE("Resulting cumulative offset is %i,%i design units\n",pt->x,pt->y);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
FIXME("Unhandled Mark To Base Format %i\n",GET_BE_WORD(mbpf1->PosFormat));
|
|
}
|
|
}
|
|
|
|
static VOID GPOS_apply_MarkToLigature(const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, INT ppem, LPPOINT pt)
|
|
{
|
|
int j;
|
|
|
|
TRACE("MarkToLigature Attachment Positioning Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset;
|
|
const GPOS_MarkLigPosFormat1 *mlpf1;
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
mlpf1 = (const GPOS_MarkLigPosFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(mlpf1->PosFormat) == 1)
|
|
{
|
|
int offset = GET_BE_WORD(mlpf1->MarkCoverage);
|
|
int mark_index;
|
|
mark_index = GSUB_is_glyph_covered((const BYTE*)mlpf1+offset, glyphs[glyph_index]);
|
|
if (mark_index != -1)
|
|
{
|
|
int ligature_index;
|
|
offset = GET_BE_WORD(mlpf1->LigatureCoverage);
|
|
ligature_index = GSUB_is_glyph_covered((const BYTE*)mlpf1+offset, glyphs[glyph_index - write_dir]);
|
|
if (ligature_index != -1)
|
|
{
|
|
const GPOS_MarkArray *ma;
|
|
const GPOS_MarkRecord *mr;
|
|
|
|
const GPOS_LigatureArray *la;
|
|
const GPOS_LigatureAttach *lt;
|
|
int mark_class;
|
|
int class_count = GET_BE_WORD(mlpf1->ClassCount);
|
|
int component_count;
|
|
int component_size;
|
|
int i;
|
|
POINT ligature_pt;
|
|
POINT mark_pt;
|
|
|
|
TRACE("Mark %x(%i) and ligature %x(%i)\n",glyphs[glyph_index], mark_index, glyphs[glyph_index - write_dir], ligature_index);
|
|
offset = GET_BE_WORD(mlpf1->MarkArray);
|
|
ma = (const GPOS_MarkArray*)((const BYTE*)mlpf1 + offset);
|
|
if (mark_index > GET_BE_WORD(ma->MarkCount))
|
|
{
|
|
ERR("Mark index exeeded mark count\n");
|
|
return;
|
|
}
|
|
mr = &ma->MarkRecord[mark_index];
|
|
mark_class = GET_BE_WORD(mr->Class);
|
|
TRACE("Mark Class %i total classes %i\n",mark_class,class_count);
|
|
offset = GET_BE_WORD(mlpf1->LigatureArray);
|
|
la = (const GPOS_LigatureArray*)((const BYTE*)mlpf1 + offset);
|
|
if (ligature_index > GET_BE_WORD(la->LigatureCount))
|
|
{
|
|
ERR("Ligature index exeeded ligature count\n");
|
|
return;
|
|
}
|
|
offset = GET_BE_WORD(la->LigatureAttach[ligature_index]);
|
|
lt = (const GPOS_LigatureAttach*)((const BYTE*)la + offset);
|
|
|
|
component_count = GET_BE_WORD(lt->ComponentCount);
|
|
component_size = class_count * sizeof(WORD);
|
|
offset = 0;
|
|
for (i = 0; i < component_count && !offset; i++)
|
|
{
|
|
int k;
|
|
const GPOS_ComponentRecord *cr = (const GPOS_ComponentRecord*)((const BYTE*)lt->ComponentRecord + (component_size * i));
|
|
for (k = 0; k < class_count && !offset; k++)
|
|
offset = GET_BE_WORD(cr->LigatureAnchor[k]);
|
|
cr = (const GPOS_ComponentRecord*)((const BYTE*)cr + component_size);
|
|
}
|
|
if (!offset)
|
|
{
|
|
ERR("Failed to find avalible ligature connection point\n");
|
|
return;
|
|
}
|
|
|
|
GPOS_get_anchor_values((const BYTE*)lt + offset, &ligature_pt, ppem);
|
|
offset = GET_BE_WORD(mr->MarkAnchor);
|
|
GPOS_get_anchor_values((const BYTE*)ma + offset, &mark_pt, ppem);
|
|
TRACE("Offset on ligature is %i,%i design units\n",ligature_pt.x,ligature_pt.y);
|
|
TRACE("Offset on mark is %i,%i design units\n",mark_pt.x, mark_pt.y);
|
|
pt->x += ligature_pt.x - mark_pt.x;
|
|
pt->y += ligature_pt.y - mark_pt.y;
|
|
TRACE("Resulting cumulative offset is %i,%i design units\n",pt->x,pt->y);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
FIXME("Unhandled Mark To Ligature Format %i\n",GET_BE_WORD(mlpf1->PosFormat));
|
|
}
|
|
}
|
|
|
|
static VOID GPOS_apply_MarkToMark(const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, INT ppem, LPPOINT pt)
|
|
{
|
|
int j;
|
|
|
|
TRACE("MarkToMark Attachment Positioning Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset;
|
|
const GPOS_MarkMarkPosFormat1 *mmpf1;
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
mmpf1 = (const GPOS_MarkMarkPosFormat1*)((const BYTE*)look+offset);
|
|
if (GET_BE_WORD(mmpf1->PosFormat) == 1)
|
|
{
|
|
int offset = GET_BE_WORD(mmpf1->Mark1Coverage);
|
|
int mark_index;
|
|
mark_index = GSUB_is_glyph_covered((const BYTE*)mmpf1+offset, glyphs[glyph_index]);
|
|
if (mark_index != -1)
|
|
{
|
|
int mark2_index;
|
|
offset = GET_BE_WORD(mmpf1->Mark2Coverage);
|
|
mark2_index = GSUB_is_glyph_covered((const BYTE*)mmpf1+offset, glyphs[glyph_index - write_dir]);
|
|
if (mark2_index != -1)
|
|
{
|
|
const GPOS_MarkArray *ma;
|
|
const GPOS_MarkRecord *mr;
|
|
const GPOS_Mark2Array *m2a;
|
|
const GPOS_Mark2Record *m2r;
|
|
int mark_class;
|
|
int class_count = GET_BE_WORD(mmpf1->ClassCount);
|
|
int mark2record_size;
|
|
POINT mark2_pt;
|
|
POINT mark_pt;
|
|
TRACE("Mark %x(%i) and Mark2 %x(%i)\n",glyphs[glyph_index], mark_index, glyphs[glyph_index - write_dir], mark2_index);
|
|
offset = GET_BE_WORD(mmpf1->Mark1Array);
|
|
ma = (const GPOS_MarkArray*)((const BYTE*)mmpf1 + offset);
|
|
if (mark_index > GET_BE_WORD(ma->MarkCount))
|
|
{
|
|
ERR("Mark index exeeded mark count\n");
|
|
return;
|
|
}
|
|
mr = &ma->MarkRecord[mark_index];
|
|
mark_class = GET_BE_WORD(mr->Class);
|
|
TRACE("Mark Class %i total classes %i\n",mark_class,class_count);
|
|
offset = GET_BE_WORD(mmpf1->Mark2Array);
|
|
m2a = (const GPOS_Mark2Array*)((const BYTE*)mmpf1 + offset);
|
|
mark2record_size = class_count * sizeof(WORD);
|
|
m2r = (const GPOS_Mark2Record*)((const BYTE*)m2a + sizeof(WORD) + (mark2record_size * mark2_index));
|
|
offset = GET_BE_WORD(m2r->Mark2Anchor[mark_class]);
|
|
GPOS_get_anchor_values((const BYTE*)m2a + offset, &mark2_pt, ppem);
|
|
offset = GET_BE_WORD(mr->MarkAnchor);
|
|
GPOS_get_anchor_values((const BYTE*)ma + offset, &mark_pt, ppem);
|
|
TRACE("Offset on mark2 is %i,%i design units\n",mark2_pt.x,mark2_pt.y);
|
|
TRACE("Offset on mark is %i,%i design units\n",mark_pt.x, mark_pt.y);
|
|
pt->x += mark2_pt.x - mark_pt.x;
|
|
pt->y += mark2_pt.y - mark_pt.y;
|
|
TRACE("Resulting cumulative offset is %i,%i design units\n",pt->x,pt->y);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
FIXME("Unhandled Mark To Mark Format %i\n",GET_BE_WORD(mmpf1->PosFormat));
|
|
}
|
|
}
|
|
|
|
static INT GPOS_apply_ChainContextPos(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, INT* piAdvance, const OT_LookupList *lookup, const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, INT ppem, GOFFSET *pGoffset)
|
|
{
|
|
int j;
|
|
|
|
TRACE("Chaining Contextual Positioning Subtable\n");
|
|
|
|
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
|
|
{
|
|
int offset;
|
|
const GPOS_ChainContextPosFormat3_1 *ccpf3;
|
|
int dirLookahead = write_dir;
|
|
int dirBacktrack = -1 * write_dir;
|
|
|
|
offset = GET_BE_WORD(look->SubTable[j]);
|
|
ccpf3 = (const GPOS_ChainContextPosFormat3_1*)((const BYTE*)look+offset);
|
|
|
|
if (GET_BE_WORD(ccpf3->PosFormat) == 1)
|
|
{
|
|
FIXME(" TODO: subtype 1 (Simple Chaining Context Glyph Positioning)\n");
|
|
continue;
|
|
}
|
|
else if (GET_BE_WORD(ccpf3->PosFormat) == 2)
|
|
{
|
|
FIXME(" TODO: subtype 2 (Class-based Chaining Context Glyph Positioning)\n");
|
|
continue;
|
|
}
|
|
else if (GET_BE_WORD(ccpf3->PosFormat) == 3)
|
|
{
|
|
int k;
|
|
int indexGlyphs;
|
|
const GPOS_ChainContextPosFormat3_2 *ccpf3_2;
|
|
const GPOS_ChainContextPosFormat3_3 *ccpf3_3;
|
|
const GPOS_ChainContextPosFormat3_4 *ccpf3_4;
|
|
|
|
TRACE(" subtype 3 (Coverage-based Chaining Context Glyph Positioning)\n");
|
|
|
|
for (k = 0; k < GET_BE_WORD(ccpf3->BacktrackGlyphCount); k++)
|
|
{
|
|
offset = GET_BE_WORD(ccpf3->Coverage[k]);
|
|
if (GSUB_is_glyph_covered((const BYTE*)ccpf3+offset, glyphs[glyph_index + (dirBacktrack * (k+1))]) == -1)
|
|
break;
|
|
}
|
|
if (k != GET_BE_WORD(ccpf3->BacktrackGlyphCount))
|
|
continue;
|
|
TRACE("Matched Backtrack\n");
|
|
|
|
ccpf3_2 = (const GPOS_ChainContextPosFormat3_2*)((BYTE *)ccpf3 +
|
|
FIELD_OFFSET(GPOS_ChainContextPosFormat3_1, Coverage[GET_BE_WORD(ccpf3->BacktrackGlyphCount)]));
|
|
|
|
indexGlyphs = GET_BE_WORD(ccpf3_2->InputGlyphCount);
|
|
for (k = 0; k < indexGlyphs; k++)
|
|
{
|
|
offset = GET_BE_WORD(ccpf3_2->Coverage[k]);
|
|
if (GSUB_is_glyph_covered((const BYTE*)ccpf3+offset, glyphs[glyph_index + (write_dir * k)]) == -1)
|
|
break;
|
|
}
|
|
if (k != indexGlyphs)
|
|
continue;
|
|
TRACE("Matched IndexGlyphs\n");
|
|
|
|
ccpf3_3 = (const GPOS_ChainContextPosFormat3_3*)((BYTE *)ccpf3_2 +
|
|
FIELD_OFFSET(GPOS_ChainContextPosFormat3_2, Coverage[GET_BE_WORD(ccpf3_2->InputGlyphCount)]));
|
|
|
|
for (k = 0; k < GET_BE_WORD(ccpf3_3->LookaheadGlyphCount); k++)
|
|
{
|
|
offset = GET_BE_WORD(ccpf3_3->Coverage[k]);
|
|
if (GSUB_is_glyph_covered((const BYTE*)ccpf3+offset, glyphs[glyph_index + (dirLookahead * (indexGlyphs + k))]) == -1)
|
|
break;
|
|
}
|
|
if (k != GET_BE_WORD(ccpf3_3->LookaheadGlyphCount))
|
|
continue;
|
|
TRACE("Matched LookAhead\n");
|
|
|
|
ccpf3_4 = (const GPOS_ChainContextPosFormat3_4*)((BYTE *)ccpf3_3 +
|
|
FIELD_OFFSET(GPOS_ChainContextPosFormat3_3, Coverage[GET_BE_WORD(ccpf3_3->LookaheadGlyphCount)]));
|
|
|
|
if (GET_BE_WORD(ccpf3_4->PosCount))
|
|
{
|
|
for (k = 0; k < GET_BE_WORD(ccpf3_4->PosCount); k++)
|
|
{
|
|
int lookupIndex = GET_BE_WORD(ccpf3_4->PosLookupRecord[k].LookupListIndex);
|
|
int SequenceIndex = GET_BE_WORD(ccpf3_4->PosLookupRecord[k].SequenceIndex) * write_dir;
|
|
|
|
TRACE("Position: %i -> %i %i\n",k, SequenceIndex, lookupIndex);
|
|
GPOS_apply_lookup(lpotm, lplogfont, piAdvance, lookup, lookupIndex, glyphs, glyph_index + SequenceIndex, write_dir, glyph_count, pGoffset);
|
|
}
|
|
return glyph_index + indexGlyphs + GET_BE_WORD(ccpf3_3->LookaheadGlyphCount);
|
|
}
|
|
else return glyph_index + 1;
|
|
}
|
|
else
|
|
FIXME("Unhandled Chaining Contextual Positioning Format %i\n",GET_BE_WORD(ccpf3->PosFormat));
|
|
}
|
|
return glyph_index + 1;
|
|
}
|
|
|
|
static INT GPOS_apply_lookup(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, INT* piAdvance, const OT_LookupList* lookup, INT lookup_index, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, GOFFSET *pGoffset)
|
|
{
|
|
int offset;
|
|
const OT_LookupTable *look;
|
|
int ppem = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading;
|
|
|
|
offset = GET_BE_WORD(lookup->Lookup[lookup_index]);
|
|
look = (const OT_LookupTable*)((const BYTE*)lookup + offset);
|
|
TRACE("type %i, flag %x, subtables %i\n",GET_BE_WORD(look->LookupType),GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount));
|
|
switch(GET_BE_WORD(look->LookupType))
|
|
{
|
|
case 1:
|
|
{
|
|
double devX, devY;
|
|
POINT adjust = {0,0};
|
|
POINT advance = {0,0};
|
|
GPOS_apply_SingleAdjustment(look, glyphs, glyph_index, write_dir, glyph_count, ppem, &adjust, &advance);
|
|
if (adjust.x || adjust.y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, adjust.x, adjust.y, &devX, &devY);
|
|
pGoffset[glyph_index].du += round(devX);
|
|
pGoffset[glyph_index].dv += round(devY);
|
|
}
|
|
if (advance.x || advance.y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, advance.x, advance.y, &devX, &devY);
|
|
piAdvance[glyph_index] += round(devX);
|
|
if (advance.y)
|
|
FIXME("Unhandled adjustment to Y advancement\n");
|
|
}
|
|
break;
|
|
}
|
|
case 2:
|
|
{
|
|
POINT advance[2]= {{0,0},{0,0}};
|
|
POINT adjust[2]= {{0,0},{0,0}};
|
|
double devX, devY;
|
|
int index;
|
|
index = GPOS_apply_PairAdjustment(look, glyphs, glyph_index, write_dir, glyph_count, ppem, adjust, advance);
|
|
if (adjust[0].x || adjust[0].y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, adjust[0].x, adjust[0].y, &devX, &devY);
|
|
pGoffset[glyph_index].du += round(devX);
|
|
pGoffset[glyph_index].dv += round(devY);
|
|
}
|
|
if (advance[0].x || advance[0].y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, advance[0].x, advance[0].y, &devX, &devY);
|
|
piAdvance[glyph_index] += round(devX);
|
|
}
|
|
if (adjust[1].x || adjust[1].y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, adjust[1].x, adjust[1].y, &devX, &devY);
|
|
pGoffset[glyph_index + write_dir].du += round(devX);
|
|
pGoffset[glyph_index + write_dir].dv += round(devY);
|
|
}
|
|
if (advance[1].x || advance[1].y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, advance[1].x, advance[1].y, &devX, &devY);
|
|
piAdvance[glyph_index + write_dir] += round(devX);
|
|
}
|
|
return index;
|
|
}
|
|
case 4:
|
|
{
|
|
double devX, devY;
|
|
POINT desU = {0,0};
|
|
GPOS_apply_MarkToBase(look, glyphs, glyph_index, write_dir, glyph_count, ppem, &desU);
|
|
if (desU.x || desU.y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY);
|
|
pGoffset[glyph_index].du += (round(devX) - piAdvance[glyph_index-1]);
|
|
pGoffset[glyph_index].dv += round(devY);
|
|
}
|
|
break;
|
|
}
|
|
case 5:
|
|
{
|
|
double devX, devY;
|
|
POINT desU = {0,0};
|
|
GPOS_apply_MarkToLigature(look, glyphs, glyph_index, write_dir, glyph_count, ppem, &desU);
|
|
if (desU.x || desU.y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY);
|
|
pGoffset[glyph_index].du += (round(devX) - piAdvance[glyph_index-1]);
|
|
pGoffset[glyph_index].dv += round(devY);
|
|
}
|
|
break;
|
|
}
|
|
case 6:
|
|
{
|
|
double devX, devY;
|
|
POINT desU = {0,0};
|
|
GPOS_apply_MarkToMark(look, glyphs, glyph_index, write_dir, glyph_count, ppem, &desU);
|
|
if (desU.x || desU.y)
|
|
{
|
|
GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY);
|
|
pGoffset[glyph_index].du += round(devX) + pGoffset[glyph_index-1].du;
|
|
pGoffset[glyph_index].dv += round(devY) + pGoffset[glyph_index-1].dv;
|
|
}
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
return GPOS_apply_ChainContextPos(lpotm, lplogfont, piAdvance, lookup, look, glyphs, glyph_index, write_dir, glyph_count, ppem, pGoffset);
|
|
}
|
|
default:
|
|
FIXME("We do not handle SubType %i\n",GET_BE_WORD(look->LookupType));
|
|
}
|
|
return glyph_index+1;
|
|
}
|
|
|
|
INT OpenType_apply_GPOS_lookup(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, INT* piAdvance, LPCVOID table, INT lookup_index, const WORD *glyphs, INT glyph_index, INT write_dir, INT glyph_count, GOFFSET *pGoffset)
|
|
{
|
|
const GPOS_Header *header = (const GPOS_Header *)table;
|
|
const OT_LookupList *lookup = (const OT_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList));
|
|
|
|
return GPOS_apply_lookup(lpotm, lplogfont, piAdvance, lookup, lookup_index, glyphs, glyph_index, write_dir, glyph_count, pGoffset);
|
|
}
|
|
|
|
static void GSUB_initialize_script_cache(ScriptCache *psc)
|
|
{
|
|
int i;
|
|
|
|
if (psc->GSUB_Table)
|
|
{
|
|
const OT_ScriptList *script;
|
|
const GSUB_Header* header = (const GSUB_Header*)psc->GSUB_Table;
|
|
script = (const OT_ScriptList*)((const BYTE*)header + GET_BE_WORD(header->ScriptList));
|
|
psc->script_count = GET_BE_WORD(script->ScriptCount);
|
|
TRACE("initializing %i scripts in this font\n",psc->script_count);
|
|
if (psc->script_count)
|
|
{
|
|
psc->scripts = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(LoadedScript) * psc->script_count);
|
|
for (i = 0; i < psc->script_count; i++)
|
|
{
|
|
int offset = GET_BE_WORD(script->ScriptRecord[i].Script);
|
|
psc->scripts[i].tag = MS_MAKE_TAG(script->ScriptRecord[i].ScriptTag[0], script->ScriptRecord[i].ScriptTag[1], script->ScriptRecord[i].ScriptTag[2], script->ScriptRecord[i].ScriptTag[3]);
|
|
psc->scripts[i].gsub_table = ((const BYTE*)script + offset);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void GPOS_expand_script_cache(ScriptCache *psc)
|
|
{
|
|
int i, count;
|
|
const OT_ScriptList *script;
|
|
const GPOS_Header* header = (const GPOS_Header*)psc->GPOS_Table;
|
|
|
|
if (!header)
|
|
return;
|
|
|
|
script = (const OT_ScriptList*)((const BYTE*)header + GET_BE_WORD(header->ScriptList));
|
|
count = GET_BE_WORD(script->ScriptCount);
|
|
|
|
if (!psc->script_count)
|
|
{
|
|
psc->script_count = count;
|
|
TRACE("initializing %i scripts in this font\n",psc->script_count);
|
|
if (psc->script_count)
|
|
{
|
|
psc->scripts = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(LoadedScript) * psc->script_count);
|
|
for (i = 0; i < psc->script_count; i++)
|
|
{
|
|
int offset = GET_BE_WORD(script->ScriptRecord[i].Script);
|
|
psc->scripts[i].tag = MS_MAKE_TAG(script->ScriptRecord[i].ScriptTag[0], script->ScriptRecord[i].ScriptTag[1], script->ScriptRecord[i].ScriptTag[2], script->ScriptRecord[i].ScriptTag[3]);
|
|
psc->scripts[i].gpos_table = ((const BYTE*)script + offset);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
int j;
|
|
int offset = GET_BE_WORD(script->ScriptRecord[i].Script);
|
|
OPENTYPE_TAG tag = MS_MAKE_TAG(script->ScriptRecord[i].ScriptTag[0], script->ScriptRecord[i].ScriptTag[1], script->ScriptRecord[i].ScriptTag[2], script->ScriptRecord[i].ScriptTag[3]);
|
|
for (j = 0; j < psc->script_count; j++)
|
|
{
|
|
if (psc->scripts[j].tag == tag)
|
|
{
|
|
psc->scripts[j].gpos_table = ((const BYTE*)script + offset);
|
|
break;
|
|
}
|
|
}
|
|
if (j == psc->script_count)
|
|
{
|
|
psc->script_count++;
|
|
psc->scripts = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,psc->scripts, sizeof(LoadedScript) * psc->script_count);
|
|
psc->scripts[j].tag = tag;
|
|
psc->scripts[j].gpos_table = ((const BYTE*)script + offset);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void _initialize_script_cache(ScriptCache *psc)
|
|
{
|
|
if (!psc->script_count)
|
|
{
|
|
GSUB_initialize_script_cache(psc);
|
|
GPOS_expand_script_cache(psc);
|
|
}
|
|
}
|
|
|
|
HRESULT OpenType_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags)
|
|
{
|
|
int i;
|
|
HRESULT rc = S_OK;
|
|
|
|
_initialize_script_cache(psc);
|
|
|
|
*pcTags = psc->script_count;
|
|
|
|
if (!searchingFor && cMaxTags < *pcTags)
|
|
rc = E_OUTOFMEMORY;
|
|
else if (searchingFor)
|
|
rc = USP_E_SCRIPT_NOT_IN_FONT;
|
|
|
|
for (i = 0; i < psc->script_count; i++)
|
|
{
|
|
if (i < cMaxTags)
|
|
pScriptTags[i] = psc->scripts[i].tag;
|
|
|
|
if (searchingFor)
|
|
{
|
|
if (searchingFor == psc->scripts[i].tag)
|
|
{
|
|
pScriptTags[0] = psc->scripts[i].tag;
|
|
*pcTags = 1;
|
|
rc = S_OK;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static void GSUB_initialize_language_cache(LoadedScript *script)
|
|
{
|
|
int i;
|
|
|
|
if (script->gsub_table)
|
|
{
|
|
DWORD offset;
|
|
const OT_Script* table = script->gsub_table;
|
|
script->language_count = GET_BE_WORD(table->LangSysCount);
|
|
offset = GET_BE_WORD(table->DefaultLangSys);
|
|
if (offset)
|
|
{
|
|
script->default_language.tag = MS_MAKE_TAG('d','f','l','t');
|
|
script->default_language.gsub_table = (const BYTE*)table + offset;
|
|
}
|
|
|
|
if (script->language_count)
|
|
{
|
|
TRACE("Deflang %p, LangCount %i\n",script->default_language.gsub_table, script->language_count);
|
|
|
|
script->languages = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LoadedLanguage) * script->language_count);
|
|
|
|
for (i = 0; i < script->language_count; i++)
|
|
{
|
|
int offset = GET_BE_WORD(table->LangSysRecord[i].LangSys);
|
|
script->languages[i].tag = MS_MAKE_TAG(table->LangSysRecord[i].LangSysTag[0], table->LangSysRecord[i].LangSysTag[1], table->LangSysRecord[i].LangSysTag[2], table->LangSysRecord[i].LangSysTag[3]);
|
|
script->languages[i].gsub_table = ((const BYTE*)table + offset);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void GPOS_expand_language_cache(LoadedScript *script)
|
|
{
|
|
int count;
|
|
const OT_Script* table = script->gpos_table;
|
|
DWORD offset;
|
|
|
|
if (!table)
|
|
return;
|
|
|
|
offset = GET_BE_WORD(table->DefaultLangSys);
|
|
if (offset)
|
|
script->default_language.gpos_table = (const BYTE*)table + offset;
|
|
|
|
count = GET_BE_WORD(table->LangSysCount);
|
|
|
|
TRACE("Deflang %p, LangCount %i\n",script->default_language.gpos_table, count);
|
|
if (!script->language_count)
|
|
{
|
|
int i;
|
|
script->language_count = count;
|
|
|
|
script->languages = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LoadedLanguage) * script->language_count);
|
|
|
|
for (i = 0; i < script->language_count; i++)
|
|
{
|
|
int offset = GET_BE_WORD(table->LangSysRecord[i].LangSys);
|
|
script->languages[i].tag = MS_MAKE_TAG(table->LangSysRecord[i].LangSysTag[0], table->LangSysRecord[i].LangSysTag[1], table->LangSysRecord[i].LangSysTag[2], table->LangSysRecord[i].LangSysTag[3]);
|
|
script->languages[i].gpos_table = ((const BYTE*)table + offset);
|
|
}
|
|
}
|
|
else if (count)
|
|
{
|
|
int i,j;
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
int offset = GET_BE_WORD(table->LangSysRecord[i].LangSys);
|
|
OPENTYPE_TAG tag = MS_MAKE_TAG(table->LangSysRecord[i].LangSysTag[0], table->LangSysRecord[i].LangSysTag[1], table->LangSysRecord[i].LangSysTag[2], table->LangSysRecord[i].LangSysTag[3]);
|
|
|
|
for (j = 0; j < script->language_count; j++)
|
|
{
|
|
if (script->languages[j].tag == tag)
|
|
{
|
|
script->languages[j].gpos_table = ((const BYTE*)table + offset);
|
|
break;
|
|
}
|
|
}
|
|
if (j == script->language_count)
|
|
{
|
|
script->language_count++;
|
|
script->languages = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,script->languages, sizeof(LoadedLanguage) * script->language_count);
|
|
script->languages[j].tag = tag;
|
|
script->languages[j].gpos_table = ((const BYTE*)table + offset);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void _initialize_language_cache(LoadedScript *script)
|
|
{
|
|
if (!script->language_count)
|
|
{
|
|
GSUB_initialize_language_cache(script);
|
|
GPOS_expand_language_cache(script);
|
|
}
|
|
}
|
|
|
|
HRESULT OpenType_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags)
|
|
{
|
|
int i;
|
|
HRESULT rc = S_OK;
|
|
LoadedScript *script = NULL;
|
|
|
|
_initialize_script_cache(psc);
|
|
|
|
for (i = 0; i < psc->script_count; i++)
|
|
{
|
|
if (psc->scripts[i].tag == script_tag)
|
|
{
|
|
script = &psc->scripts[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!script)
|
|
return E_INVALIDARG;
|
|
|
|
_initialize_language_cache(script);
|
|
|
|
if (!searchingFor && cMaxTags < script->language_count)
|
|
rc = E_OUTOFMEMORY;
|
|
else if (searchingFor)
|
|
rc = E_INVALIDARG;
|
|
|
|
*pcTags = script->language_count;
|
|
|
|
for (i = 0; i < script->language_count; i++)
|
|
{
|
|
if (i < cMaxTags)
|
|
pLanguageTags[i] = script->languages[i].tag;
|
|
|
|
if (searchingFor)
|
|
{
|
|
if (searchingFor == script->languages[i].tag)
|
|
{
|
|
pLanguageTags[0] = script->languages[i].tag;
|
|
*pcTags = 1;
|
|
rc = S_OK;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (script->default_language.gsub_table)
|
|
{
|
|
if (i < cMaxTags)
|
|
pLanguageTags[i] = script->default_language.tag;
|
|
|
|
if (searchingFor && FAILED(rc))
|
|
{
|
|
pLanguageTags[0] = script->default_language.tag;
|
|
}
|
|
i++;
|
|
*pcTags = (*pcTags) + 1;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
static void GSUB_initialize_feature_cache(LPCVOID table, LoadedLanguage *language)
|
|
{
|
|
int i;
|
|
|
|
if (language->gsub_table)
|
|
{
|
|
const OT_LangSys *lang = language->gsub_table;
|
|
const GSUB_Header *header = (const GSUB_Header *)table;
|
|
const OT_FeatureList *feature_list;
|
|
|
|
language->feature_count = GET_BE_WORD(lang->FeatureCount);
|
|
TRACE("%i features\n",language->feature_count);
|
|
|
|
if (language->feature_count)
|
|
{
|
|
language->features = HeapAlloc(GetProcessHeap(),0,sizeof(LoadedFeature)*language->feature_count);
|
|
|
|
feature_list = (const OT_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList));
|
|
|
|
for (i = 0; i < language->feature_count; i++)
|
|
{
|
|
const OT_Feature *feature;
|
|
int j;
|
|
int index = GET_BE_WORD(lang->FeatureIndex[i]);
|
|
|
|
language->features[i].tag = MS_MAKE_TAG(feature_list->FeatureRecord[index].FeatureTag[0], feature_list->FeatureRecord[index].FeatureTag[1], feature_list->FeatureRecord[index].FeatureTag[2], feature_list->FeatureRecord[index].FeatureTag[3]);
|
|
language->features[i].feature = ((const BYTE*)feature_list + GET_BE_WORD(feature_list->FeatureRecord[index].Feature));
|
|
feature = (const OT_Feature*)language->features[i].feature;
|
|
language->features[i].lookup_count = GET_BE_WORD(feature->LookupCount);
|
|
language->features[i].lookups = HeapAlloc(GetProcessHeap(),0,sizeof(WORD) * language->features[i].lookup_count);
|
|
for (j = 0; j < language->features[i].lookup_count; j++)
|
|
language->features[i].lookups[j] = GET_BE_WORD(feature->LookupListIndex[j]);
|
|
language->features[i].tableType = FEATURE_GSUB_TABLE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void GPOS_expand_feature_cache(LPCVOID table, LoadedLanguage *language)
|
|
{
|
|
int i, count;
|
|
const OT_LangSys *lang = language->gpos_table;
|
|
const GPOS_Header *header = (const GPOS_Header *)table;
|
|
const OT_FeatureList *feature_list;
|
|
|
|
if (!lang)
|
|
return;
|
|
|
|
count = GET_BE_WORD(lang->FeatureCount);
|
|
feature_list = (const OT_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList));
|
|
|
|
TRACE("%i features\n",count);
|
|
if (!language->feature_count)
|
|
{
|
|
language->feature_count = count;
|
|
|
|
if (language->feature_count)
|
|
{
|
|
language->features = HeapAlloc(GetProcessHeap(),0,sizeof(LoadedFeature)*language->feature_count);
|
|
|
|
for (i = 0; i < language->feature_count; i++)
|
|
{
|
|
const OT_Feature *feature;
|
|
int j;
|
|
int index = GET_BE_WORD(lang->FeatureIndex[i]);
|
|
|
|
language->features[i].tag = MS_MAKE_TAG(feature_list->FeatureRecord[index].FeatureTag[0], feature_list->FeatureRecord[index].FeatureTag[1], feature_list->FeatureRecord[index].FeatureTag[2], feature_list->FeatureRecord[index].FeatureTag[3]);
|
|
language->features[i].feature = ((const BYTE*)feature_list + GET_BE_WORD(feature_list->FeatureRecord[index].Feature));
|
|
feature = (const OT_Feature*)language->features[i].feature;
|
|
language->features[i].lookup_count = GET_BE_WORD(feature->LookupCount);
|
|
language->features[i].lookups = HeapAlloc(GetProcessHeap(),0,sizeof(WORD) * language->features[i].lookup_count);
|
|
for (j = 0; j < language->features[i].lookup_count; j++)
|
|
language->features[i].lookups[j] = GET_BE_WORD(feature->LookupListIndex[j]);
|
|
language->features[i].tableType = FEATURE_GPOS_TABLE;
|
|
}
|
|
}
|
|
}
|
|
else if (count)
|
|
{
|
|
language->features = HeapReAlloc(GetProcessHeap(),0,language->features, sizeof(LoadedFeature)*(language->feature_count + count));
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
const OT_Feature *feature;
|
|
int j;
|
|
int index = GET_BE_WORD(lang->FeatureIndex[i]);
|
|
int idx = language->feature_count + i;
|
|
|
|
language->features[idx].tag = MS_MAKE_TAG(feature_list->FeatureRecord[index].FeatureTag[0], feature_list->FeatureRecord[index].FeatureTag[1], feature_list->FeatureRecord[index].FeatureTag[2], feature_list->FeatureRecord[index].FeatureTag[3]);
|
|
language->features[idx].feature = ((const BYTE*)feature_list + GET_BE_WORD(feature_list->FeatureRecord[index].Feature));
|
|
feature = (const OT_Feature*)language->features[idx].feature;
|
|
language->features[idx].lookup_count = GET_BE_WORD(feature->LookupCount);
|
|
language->features[idx].lookups = HeapAlloc(GetProcessHeap(),0,sizeof(WORD) * language->features[idx].lookup_count);
|
|
for (j = 0; j < language->features[idx].lookup_count; j++)
|
|
language->features[idx].lookups[j] = GET_BE_WORD(feature->LookupListIndex[j]);
|
|
language->features[idx].tableType = FEATURE_GPOS_TABLE;
|
|
}
|
|
language->feature_count += count;
|
|
}
|
|
}
|
|
|
|
static void _initialize_feature_cache(ScriptCache *psc, LoadedLanguage *language)
|
|
{
|
|
if (!language->feature_count)
|
|
{
|
|
GSUB_initialize_feature_cache(psc->GSUB_Table, language);
|
|
GPOS_expand_feature_cache(psc->GPOS_Table, language);
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
int i;
|
|
HRESULT rc = S_OK;
|
|
LoadedScript *script = NULL;
|
|
LoadedLanguage *language = NULL;
|
|
|
|
_initialize_script_cache(psc);
|
|
|
|
for (i = 0; i < psc->script_count; i++)
|
|
{
|
|
if (psc->scripts[i].tag == script_tag)
|
|
{
|
|
script = &psc->scripts[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!script)
|
|
{
|
|
*pcTags = 0;
|
|
if (!filtered)
|
|
return S_OK;
|
|
else
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
_initialize_language_cache(script);
|
|
|
|
if ((script->default_language.gsub_table || script->default_language.gpos_table) && script->default_language.tag == language_tag)
|
|
language = &script->default_language;
|
|
else
|
|
{
|
|
for (i = 0; i < script->language_count; i++)
|
|
{
|
|
if (script->languages[i].tag == language_tag)
|
|
{
|
|
language = &script->languages[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!language)
|
|
{
|
|
*pcTags = 0;
|
|
return S_OK;
|
|
}
|
|
|
|
_initialize_feature_cache(psc, language);
|
|
|
|
if (tableType)
|
|
{
|
|
*pcTags = 0;
|
|
for (i = 0; i < language->feature_count; i++)
|
|
if (language->features[i].tableType == tableType)
|
|
*pcTags = (*pcTags)+1;
|
|
}
|
|
else
|
|
*pcTags = language->feature_count;
|
|
|
|
if (!searchingFor && cMaxTags < *pcTags)
|
|
rc = E_OUTOFMEMORY;
|
|
else if (searchingFor)
|
|
rc = E_INVALIDARG;
|
|
|
|
for (i = 0; i < language->feature_count; i++)
|
|
{
|
|
if (i < cMaxTags)
|
|
{
|
|
if (!tableType || language->features[i].tableType == tableType)
|
|
pFeatureTags[i] = language->features[i].tag;
|
|
}
|
|
|
|
if (searchingFor)
|
|
{
|
|
if ((searchingFor == language->features[i].tag) &&
|
|
(!tableType || language->features[i].tableType == tableType))
|
|
{
|
|
pFeatureTags[0] = language->features[i].tag;
|
|
*pcTags = 1;
|
|
if (feature)
|
|
*feature = &language->features[i];
|
|
rc = S_OK;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return rc;
|
|
}
|