usp10: Move GSUB functions to opentype.c.
This commit is contained in:
Aric Stewart
Alexandre Julliard
parent
bf1ef214e6
commit
4019987391
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@ -105,6 +105,178 @@ typedef struct {
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GDEF_ClassRangeRecord ClassRangeRecord[1];
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} GDEF_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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} GSUB_ScriptRecord;
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typedef struct {
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WORD ScriptCount;
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GSUB_ScriptRecord ScriptRecord[1];
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} GSUB_ScriptList;
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typedef struct {
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CHAR LangSysTag[4];
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WORD LangSys;
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} GSUB_LangSysRecord;
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typedef struct {
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WORD DefaultLangSys;
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WORD LangSysCount;
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GSUB_LangSysRecord LangSysRecord[1];
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} GSUB_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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} GSUB_LangSys;
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typedef struct {
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CHAR FeatureTag[4];
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WORD Feature;
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} GSUB_FeatureRecord;
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typedef struct {
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WORD FeatureCount;
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GSUB_FeatureRecord FeatureRecord[1];
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} GSUB_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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} GSUB_Feature;
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typedef struct {
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WORD LookupCount;
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WORD Lookup[1];
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} GSUB_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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} GSUB_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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} GSUB_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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} GSUB_RangeRecord;
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typedef struct {
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WORD CoverageFormat;
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WORD RangeCount;
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GSUB_RangeRecord RangeRecord[1];
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} GSUB_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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/**********
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* CMAP
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**********/
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@ -306,3 +478,640 @@ void OpenType_GDEF_UpdateGlyphProps(HDC hdc, ScriptCache *psc, const WORD *pwGly
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pGlyphProp[i].sva.fClusterStart = 0;
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}
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}
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/**********
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* GSUB
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**********/
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static INT GSUB_apply_lookup(const GSUB_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count);
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static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph)
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{
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const GSUB_CoverageFormat1* cf1;
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cf1 = table;
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if (GET_BE_WORD(cf1->CoverageFormat) == 1)
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{
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int count = GET_BE_WORD(cf1->GlyphCount);
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int i;
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TRACE("Coverage Format 1, %i glyphs\n",count);
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for (i = 0; i < count; i++)
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if (glyph == GET_BE_WORD(cf1->GlyphArray[i]))
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return i;
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return -1;
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}
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else if (GET_BE_WORD(cf1->CoverageFormat) == 2)
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{
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const GSUB_CoverageFormat2* cf2;
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int i;
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int count;
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cf2 = (const GSUB_CoverageFormat2*)cf1;
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count = GET_BE_WORD(cf2->RangeCount);
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TRACE("Coverage Format 2, %i ranges\n",count);
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for (i = 0; i < count; i++)
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{
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if (glyph < GET_BE_WORD(cf2->RangeRecord[i].Start))
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return -1;
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if ((glyph >= GET_BE_WORD(cf2->RangeRecord[i].Start)) &&
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(glyph <= GET_BE_WORD(cf2->RangeRecord[i].End)))
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{
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return (GET_BE_WORD(cf2->RangeRecord[i].StartCoverageIndex) +
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glyph - GET_BE_WORD(cf2->RangeRecord[i].Start));
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}
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}
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return -1;
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}
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else
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ERR("Unknown CoverageFormat %i\n",GET_BE_WORD(cf1->CoverageFormat));
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return -1;
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}
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static INT GSUB_apply_SingleSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
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{
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int j;
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TRACE("Single Substitution Subtable\n");
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for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
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{
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int offset;
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const GSUB_SingleSubstFormat1 *ssf1;
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offset = GET_BE_WORD(look->SubTable[j]);
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ssf1 = (const GSUB_SingleSubstFormat1*)((const BYTE*)look+offset);
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if (GET_BE_WORD(ssf1->SubstFormat) == 1)
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{
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int offset = GET_BE_WORD(ssf1->Coverage);
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TRACE(" subtype 1, delta %i\n", GET_BE_WORD(ssf1->DeltaGlyphID));
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if (GSUB_is_glyph_covered((const BYTE*)ssf1+offset, glyphs[glyph_index]) != -1)
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{
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TRACE(" Glyph 0x%x ->",glyphs[glyph_index]);
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glyphs[glyph_index] = glyphs[glyph_index] + GET_BE_WORD(ssf1->DeltaGlyphID);
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TRACE(" 0x%x\n",glyphs[glyph_index]);
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return glyph_index + write_dir;
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}
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}
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else
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{
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const GSUB_SingleSubstFormat2 *ssf2;
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INT index;
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INT offset;
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ssf2 = (const GSUB_SingleSubstFormat2 *)ssf1;
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offset = GET_BE_WORD(ssf1->Coverage);
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TRACE(" subtype 2, glyph count %i\n", GET_BE_WORD(ssf2->GlyphCount));
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index = GSUB_is_glyph_covered((const BYTE*)ssf2+offset, glyphs[glyph_index]);
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TRACE(" Coverage index %i\n",index);
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if (index != -1)
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{
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if (glyphs[glyph_index] == GET_BE_WORD(ssf2->Substitute[index]))
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return GSUB_E_NOGLYPH;
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TRACE(" Glyph is 0x%x ->",glyphs[glyph_index]);
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glyphs[glyph_index] = GET_BE_WORD(ssf2->Substitute[index]);
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TRACE("0x%x\n",glyphs[glyph_index]);
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return glyph_index + write_dir;
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}
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}
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}
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return GSUB_E_NOGLYPH;
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}
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static INT GSUB_apply_MultipleSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
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{
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int j;
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TRACE("Multiple Substitution Subtable\n");
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for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
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{
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int offset, index;
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const GSUB_MultipleSubstFormat1 *msf1;
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offset = GET_BE_WORD(look->SubTable[j]);
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msf1 = (const GSUB_MultipleSubstFormat1*)((const BYTE*)look+offset);
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offset = GET_BE_WORD(msf1->Coverage);
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index = GSUB_is_glyph_covered((const BYTE*)msf1+offset, glyphs[glyph_index]);
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if (index != -1)
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{
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const GSUB_Sequence *seq;
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int sub_count;
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int j;
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offset = GET_BE_WORD(msf1->Sequence[index]);
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seq = (const GSUB_Sequence*)((const BYTE*)msf1+offset);
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sub_count = GET_BE_WORD(seq->GlyphCount);
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TRACE(" Glyph 0x%x (+%i)->",glyphs[glyph_index],(sub_count-1));
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for (j = (*glyph_count)+(sub_count-1); j > glyph_index; j--)
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glyphs[j] =glyphs[j-(sub_count-1)];
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for (j = 0; j < sub_count; j++)
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if (write_dir < 0)
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glyphs[glyph_index + (sub_count-1) - j] = GET_BE_WORD(seq->Substitute[j]);
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else
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glyphs[glyph_index + j] = GET_BE_WORD(seq->Substitute[j]);
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*glyph_count = *glyph_count + (sub_count - 1);
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if (TRACE_ON(uniscribe))
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{
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for (j = 0; j < sub_count; j++)
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TRACE(" 0x%x",glyphs[glyph_index+j]);
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TRACE("\n");
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}
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return glyph_index + (sub_count * write_dir);
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}
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}
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return GSUB_E_NOGLYPH;
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}
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static INT GSUB_apply_AlternateSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
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{
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int j;
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TRACE("Alternate Substitution Subtable\n");
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for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
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{
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int offset;
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const GSUB_AlternateSubstFormat1 *asf1;
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INT index;
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offset = GET_BE_WORD(look->SubTable[j]);
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asf1 = (const GSUB_AlternateSubstFormat1*)((const BYTE*)look+offset);
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offset = GET_BE_WORD(asf1->Coverage);
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index = GSUB_is_glyph_covered((const BYTE*)asf1+offset, glyphs[glyph_index]);
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if (index != -1)
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{
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const GSUB_AlternateSet *as;
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offset = GET_BE_WORD(asf1->AlternateSet[index]);
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as = (const GSUB_AlternateSet*)((const BYTE*)asf1+offset);
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FIXME("%i alternates, picking index 0\n",GET_BE_WORD(as->GlyphCount));
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if (glyphs[glyph_index] == GET_BE_WORD(as->Alternate[0]))
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return GSUB_E_NOGLYPH;
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TRACE(" Glyph 0x%x ->",glyphs[glyph_index]);
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glyphs[glyph_index] = GET_BE_WORD(as->Alternate[0]);
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TRACE(" 0x%x\n",glyphs[glyph_index]);
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return glyph_index + write_dir;
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}
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}
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return GSUB_E_NOGLYPH;
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}
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static INT GSUB_apply_LigatureSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
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{
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int j;
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TRACE("Ligature Substitution Subtable\n");
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for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
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{
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const GSUB_LigatureSubstFormat1 *lsf1;
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int offset,index;
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offset = GET_BE_WORD(look->SubTable[j]);
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lsf1 = (const GSUB_LigatureSubstFormat1*)((const BYTE*)look+offset);
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offset = GET_BE_WORD(lsf1->Coverage);
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index = GSUB_is_glyph_covered((const BYTE*)lsf1+offset, glyphs[glyph_index]);
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TRACE(" Coverage index %i\n",index);
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if (index != -1)
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{
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const GSUB_LigatureSet *ls;
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int k, count;
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offset = GET_BE_WORD(lsf1->LigatureSet[index]);
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ls = (const GSUB_LigatureSet*)((const BYTE*)lsf1+offset);
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count = GET_BE_WORD(ls->LigatureCount);
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TRACE(" LigatureSet has %i members\n",count);
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for (k = 0; k < count; k++)
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{
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const GSUB_Ligature *lig;
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int CompCount,l,CompIndex;
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offset = GET_BE_WORD(ls->Ligature[k]);
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lig = (const GSUB_Ligature*)((const BYTE*)ls+offset);
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CompCount = GET_BE_WORD(lig->CompCount) - 1;
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CompIndex = glyph_index+write_dir;
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for (l = 0; l < CompCount && CompIndex >= 0 && CompIndex < *glyph_count; l++)
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{
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int CompGlyph;
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CompGlyph = GET_BE_WORD(lig->Component[l]);
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if (CompGlyph != glyphs[CompIndex])
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break;
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CompIndex += write_dir;
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}
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if (l == CompCount)
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{
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int replaceIdx = glyph_index;
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if (write_dir < 0)
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replaceIdx = glyph_index - CompCount;
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TRACE(" Glyph is 0x%x (+%i) ->",glyphs[glyph_index],CompCount);
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glyphs[replaceIdx] = GET_BE_WORD(lig->LigGlyph);
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TRACE("0x%x\n",glyphs[replaceIdx]);
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if (CompCount > 0)
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{
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int j;
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for (j = replaceIdx + 1; j < *glyph_count; j++)
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glyphs[j] =glyphs[j+CompCount];
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*glyph_count = *glyph_count - CompCount;
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}
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return replaceIdx + write_dir;
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}
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}
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}
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}
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return GSUB_E_NOGLYPH;
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}
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static INT GSUB_apply_ChainContextSubst(const GSUB_LookupList* lookup, const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
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{
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int j;
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BOOL done = FALSE;
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TRACE("Chaining Contextual Substitution Subtable\n");
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for (j = 0; j < GET_BE_WORD(look->SubTableCount) && !done; j++)
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{
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const GSUB_ChainContextSubstFormat1 *ccsf1;
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int offset;
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int dirLookahead = write_dir;
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int dirBacktrack = -1 * write_dir;
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offset = GET_BE_WORD(look->SubTable[j]);
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ccsf1 = (const GSUB_ChainContextSubstFormat1*)((const BYTE*)look+offset);
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if (GET_BE_WORD(ccsf1->SubstFormat) == 1)
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{
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FIXME(" TODO: subtype 1 (Simple context glyph substitution)\n");
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continue;
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}
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else if (GET_BE_WORD(ccsf1->SubstFormat) == 2)
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{
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FIXME(" TODO: subtype 2 (Class-based Chaining Context Glyph Substitution)\n");
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continue;
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}
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else if (GET_BE_WORD(ccsf1->SubstFormat) == 3)
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{
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int k;
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int indexGlyphs;
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const GSUB_ChainContextSubstFormat3_1 *ccsf3_1;
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const GSUB_ChainContextSubstFormat3_2 *ccsf3_2;
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const GSUB_ChainContextSubstFormat3_3 *ccsf3_3;
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const GSUB_ChainContextSubstFormat3_4 *ccsf3_4;
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int newIndex = glyph_index;
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ccsf3_1 = (const GSUB_ChainContextSubstFormat3_1 *)ccsf1;
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TRACE(" subtype 3 (Coverage-based Chaining Context Glyph Substitution)\n");
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for (k = 0; k < GET_BE_WORD(ccsf3_1->BacktrackGlyphCount); k++)
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{
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offset = GET_BE_WORD(ccsf3_1->Coverage[k]);
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if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (dirBacktrack * (k+1))]) == -1)
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break;
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}
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if (k != GET_BE_WORD(ccsf3_1->BacktrackGlyphCount))
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continue;
|
||||
TRACE("Matched Backtrack\n");
|
||||
|
||||
ccsf3_2 = (const GSUB_ChainContextSubstFormat3_2 *)(((LPBYTE)ccsf1)+sizeof(GSUB_ChainContextSubstFormat3_1) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_1->BacktrackGlyphCount)-1)));
|
||||
|
||||
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 *)(((LPBYTE)ccsf3_2)+sizeof(GSUB_ChainContextSubstFormat3_2) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_2->InputGlyphCount)-1)));
|
||||
|
||||
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 *)(((LPBYTE)ccsf3_3)+sizeof(GSUB_ChainContextSubstFormat3_3) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_3->LookaheadGlyphCount)-1)));
|
||||
|
||||
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 GSUB_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
||||
{
|
||||
int offset;
|
||||
const GSUB_LookupTable *look;
|
||||
|
||||
offset = GET_BE_WORD(lookup->Lookup[lookup_index]);
|
||||
look = (const GSUB_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 GSUB_LookupList *lookup = (const GSUB_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList));
|
||||
|
||||
return GSUB_apply_lookup(lookup, lookup_index, glyphs, glyph_index, write_dir, glyph_count);
|
||||
}
|
||||
|
||||
static void GSUB_initialize_script_cache(ScriptCache *psc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!psc->script_count)
|
||||
{
|
||||
const GSUB_ScriptList *script;
|
||||
const GSUB_Header* header = (const GSUB_Header*)psc->GSUB_Table;
|
||||
script = (const GSUB_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);
|
||||
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].table = ((const BYTE*)script + offset);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
HRESULT OpenType_GSUB_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags, LPCVOID* script_table)
|
||||
{
|
||||
int i;
|
||||
HRESULT rc = S_OK;
|
||||
|
||||
GSUB_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;
|
||||
if (script_table)
|
||||
*script_table = psc->scripts[i].table;
|
||||
rc = S_OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void GSUB_initialize_language_cache(LoadedScript *script)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!script->language_count)
|
||||
{
|
||||
const GSUB_Script* table = script->table;
|
||||
script->language_count = GET_BE_WORD(table->LangSysCount);
|
||||
script->default_language.tag = MS_MAKE_TAG('d','f','l','t');
|
||||
script->default_language.table = (const BYTE*)table + GET_BE_WORD(table->DefaultLangSys);
|
||||
|
||||
TRACE("Deflang %p, LangCount %i\n",script->default_language.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].table = ((const BYTE*)table + offset);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
HRESULT OpenType_GSUB_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags, LPCVOID* language_table)
|
||||
{
|
||||
int i;
|
||||
HRESULT rc = S_OK;
|
||||
LoadedScript *script = NULL;
|
||||
|
||||
GSUB_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;
|
||||
|
||||
GSUB_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;
|
||||
if (language_table)
|
||||
*language_table = script->languages[i].table;
|
||||
rc = S_OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (script->default_language.table)
|
||||
{
|
||||
if (i < cMaxTags)
|
||||
pLanguageTags[i] = script->default_language.tag;
|
||||
|
||||
if (searchingFor && FAILED(rc))
|
||||
{
|
||||
pLanguageTags[0] = script->default_language.tag;
|
||||
if (language_table)
|
||||
*language_table = script->default_language.table;
|
||||
}
|
||||
i++;
|
||||
*pcTags = (*pcTags) + 1;
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
|
||||
static void GSUB_initialize_feature_cache(LPCVOID table, LoadedLanguage *language)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!language->feature_count)
|
||||
{
|
||||
const GSUB_LangSys *lang= language->table;
|
||||
const GSUB_Header *header = (const GSUB_Header *)table;
|
||||
const GSUB_FeatureList *feature_list;
|
||||
|
||||
language->feature_count = GET_BE_WORD(lang->FeatureCount);
|
||||
TRACE("%i features\n",language->feature_count);
|
||||
|
||||
language->features = HeapAlloc(GetProcessHeap(),0,sizeof(LoadedFeature)*language->feature_count);
|
||||
|
||||
feature_list = (const GSUB_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList));
|
||||
|
||||
for (i = 0; i < language->feature_count; i++)
|
||||
{
|
||||
const GSUB_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 GSUB_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]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
HRESULT OpenType_GSUB_GetFontFeatureTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG language_tag, BOOL filtered, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags, LoadedFeature** feature)
|
||||
{
|
||||
int i;
|
||||
HRESULT rc = S_OK;
|
||||
LoadedScript *script = NULL;
|
||||
LoadedLanguage *language = NULL;
|
||||
|
||||
GSUB_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;
|
||||
}
|
||||
|
||||
GSUB_initialize_language_cache(script);
|
||||
|
||||
if (script->default_language.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;
|
||||
}
|
||||
|
||||
GSUB_initialize_feature_cache(psc->GSUB_Table, language);
|
||||
|
||||
*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)
|
||||
pFeatureTags[i] = language->features[i].tag;
|
||||
|
||||
if (searchingFor)
|
||||
{
|
||||
if (searchingFor == language->features[i].tag)
|
||||
{
|
||||
pFeatureTags[0] = language->features[i].tag;
|
||||
*pcTags = 1;
|
||||
if (feature)
|
||||
*feature = &language->features[i];
|
||||
rc = S_OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -100,194 +100,6 @@ enum joined_forms {
|
|||
Afx
|
||||
};
|
||||
|
||||
#ifdef WORDS_BIGENDIAN
|
||||
#define GET_BE_WORD(x) (x)
|
||||
#define GET_BE_DWORD(x) (x)
|
||||
#else
|
||||
#define GET_BE_WORD(x) RtlUshortByteSwap(x)
|
||||
#define GET_BE_DWORD(x) RtlUlongByteSwap(x)
|
||||
#endif
|
||||
|
||||
/* These are all structures needed for the GSUB table */
|
||||
#define GSUB_TAG MS_MAKE_TAG('G', 'S', 'U', 'B')
|
||||
#define GSUB_E_NOFEATURE -2
|
||||
#define GSUB_E_NOGLYPH -1
|
||||
|
||||
typedef struct {
|
||||
DWORD version;
|
||||
WORD ScriptList;
|
||||
WORD FeatureList;
|
||||
WORD LookupList;
|
||||
} GSUB_Header;
|
||||
|
||||
typedef struct {
|
||||
CHAR ScriptTag[4];
|
||||
WORD Script;
|
||||
} GSUB_ScriptRecord;
|
||||
|
||||
typedef struct {
|
||||
WORD ScriptCount;
|
||||
GSUB_ScriptRecord ScriptRecord[1];
|
||||
} GSUB_ScriptList;
|
||||
|
||||
typedef struct {
|
||||
CHAR LangSysTag[4];
|
||||
WORD LangSys;
|
||||
} GSUB_LangSysRecord;
|
||||
|
||||
typedef struct {
|
||||
WORD DefaultLangSys;
|
||||
WORD LangSysCount;
|
||||
GSUB_LangSysRecord LangSysRecord[1];
|
||||
} GSUB_Script;
|
||||
|
||||
typedef struct {
|
||||
WORD LookupOrder; /* Reserved */
|
||||
WORD ReqFeatureIndex;
|
||||
WORD FeatureCount;
|
||||
WORD FeatureIndex[1];
|
||||
} GSUB_LangSys;
|
||||
|
||||
typedef struct {
|
||||
CHAR FeatureTag[4];
|
||||
WORD Feature;
|
||||
} GSUB_FeatureRecord;
|
||||
|
||||
typedef struct {
|
||||
WORD FeatureCount;
|
||||
GSUB_FeatureRecord FeatureRecord[1];
|
||||
} GSUB_FeatureList;
|
||||
|
||||
typedef struct {
|
||||
WORD FeatureParams; /* Reserved */
|
||||
WORD LookupCount;
|
||||
WORD LookupListIndex[1];
|
||||
} GSUB_Feature;
|
||||
|
||||
typedef struct {
|
||||
WORD LookupCount;
|
||||
WORD Lookup[1];
|
||||
} GSUB_LookupList;
|
||||
|
||||
typedef struct {
|
||||
WORD LookupType;
|
||||
WORD LookupFlag;
|
||||
WORD SubTableCount;
|
||||
WORD SubTable[1];
|
||||
} GSUB_LookupTable;
|
||||
|
||||
typedef struct {
|
||||
WORD CoverageFormat;
|
||||
WORD GlyphCount;
|
||||
WORD GlyphArray[1];
|
||||
} GSUB_CoverageFormat1;
|
||||
|
||||
typedef struct {
|
||||
WORD Start;
|
||||
WORD End;
|
||||
WORD StartCoverageIndex;
|
||||
} GSUB_RangeRecord;
|
||||
|
||||
typedef struct {
|
||||
WORD CoverageFormat;
|
||||
WORD RangeCount;
|
||||
GSUB_RangeRecord RangeRecord[1];
|
||||
} GSUB_CoverageFormat2;
|
||||
|
||||
typedef struct {
|
||||
WORD SubstFormat; /* = 1 */
|
||||
WORD Coverage;
|
||||
WORD DeltaGlyphID;
|
||||
} GSUB_SingleSubstFormat1;
|
||||
|
||||
typedef struct {
|
||||
WORD SubstFormat; /* = 2 */
|
||||
WORD Coverage;
|
||||
WORD GlyphCount;
|
||||
WORD Substitute[1];
|
||||
}GSUB_SingleSubstFormat2;
|
||||
|
||||
typedef struct {
|
||||
WORD SubstFormat; /* = 1 */
|
||||
WORD Coverage;
|
||||
WORD SequenceCount;
|
||||
WORD Sequence[1];
|
||||
}GSUB_MultipleSubstFormat1;
|
||||
|
||||
typedef struct {
|
||||
WORD GlyphCount;
|
||||
WORD Substitute[1];
|
||||
}GSUB_Sequence;
|
||||
|
||||
typedef struct {
|
||||
WORD SubstFormat; /* = 1 */
|
||||
WORD Coverage;
|
||||
WORD LigSetCount;
|
||||
WORD LigatureSet[1];
|
||||
}GSUB_LigatureSubstFormat1;
|
||||
|
||||
typedef struct {
|
||||
WORD LigatureCount;
|
||||
WORD Ligature[1];
|
||||
}GSUB_LigatureSet;
|
||||
|
||||
typedef struct{
|
||||
WORD LigGlyph;
|
||||
WORD CompCount;
|
||||
WORD Component[1];
|
||||
}GSUB_Ligature;
|
||||
|
||||
typedef struct{
|
||||
WORD SequenceIndex;
|
||||
WORD LookupListIndex;
|
||||
|
||||
}GSUB_SubstLookupRecord;
|
||||
|
||||
typedef struct{
|
||||
WORD SubstFormat; /* = 1 */
|
||||
WORD Coverage;
|
||||
WORD ChainSubRuleSetCount;
|
||||
WORD ChainSubRuleSet[1];
|
||||
}GSUB_ChainContextSubstFormat1;
|
||||
|
||||
typedef struct {
|
||||
WORD SubstFormat; /* = 3 */
|
||||
WORD BacktrackGlyphCount;
|
||||
WORD Coverage[1];
|
||||
}GSUB_ChainContextSubstFormat3_1;
|
||||
|
||||
typedef struct{
|
||||
WORD InputGlyphCount;
|
||||
WORD Coverage[1];
|
||||
}GSUB_ChainContextSubstFormat3_2;
|
||||
|
||||
typedef struct{
|
||||
WORD LookaheadGlyphCount;
|
||||
WORD Coverage[1];
|
||||
}GSUB_ChainContextSubstFormat3_3;
|
||||
|
||||
typedef struct{
|
||||
WORD SubstCount;
|
||||
GSUB_SubstLookupRecord SubstLookupRecord[1];
|
||||
}GSUB_ChainContextSubstFormat3_4;
|
||||
|
||||
typedef struct {
|
||||
WORD SubstFormat; /* = 1 */
|
||||
WORD Coverage;
|
||||
WORD AlternateSetCount;
|
||||
WORD AlternateSet[1];
|
||||
} GSUB_AlternateSubstFormat1;
|
||||
|
||||
typedef struct{
|
||||
WORD GlyphCount;
|
||||
WORD Alternate[1];
|
||||
} GSUB_AlternateSet;
|
||||
|
||||
static INT GSUB_apply_lookup(const GSUB_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count);
|
||||
static HRESULT GSUB_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags, LPCVOID* script_table);
|
||||
static HRESULT GSUB_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags, LPCVOID* language_table);
|
||||
static HRESULT GSUB_GetFontFeatureTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG language_tag, BOOL filtered, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags, LoadedFeature** feature);
|
||||
|
||||
typedef struct tagVowelComponents
|
||||
{
|
||||
WCHAR base;
|
||||
|
|
@ -661,379 +473,6 @@ static const ScriptShapeData ShapingData[] =
|
|||
|
||||
extern scriptData scriptInformation[];
|
||||
|
||||
static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph)
|
||||
{
|
||||
const GSUB_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 GSUB_CoverageFormat2* cf2;
|
||||
int i;
|
||||
int count;
|
||||
cf2 = (const GSUB_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 GSUB_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 GSUB_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 GSUB_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 GSUB_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 GSUB_LookupList* lookup, const GSUB_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 *)(((LPBYTE)ccsf1)+sizeof(GSUB_ChainContextSubstFormat3_1) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_1->BacktrackGlyphCount)-1)));
|
||||
|
||||
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 *)(((LPBYTE)ccsf3_2)+sizeof(GSUB_ChainContextSubstFormat3_2) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_2->InputGlyphCount)-1)));
|
||||
|
||||
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 *)(((LPBYTE)ccsf3_3)+sizeof(GSUB_ChainContextSubstFormat3_3) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_3->LookaheadGlyphCount)-1)));
|
||||
|
||||
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 GSUB_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
||||
{
|
||||
int offset;
|
||||
const GSUB_LookupTable *look;
|
||||
|
||||
offset = GET_BE_WORD(lookup->Lookup[lookup_index]);
|
||||
look = (const GSUB_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;
|
||||
}
|
||||
|
||||
static INT 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 GSUB_LookupList *lookup = (const GSUB_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList));
|
||||
|
||||
return GSUB_apply_lookup(lookup, lookup_index, glyphs, glyph_index, write_dir, glyph_count);
|
||||
}
|
||||
|
||||
static INT GSUB_apply_feature_all_lookups(LPCVOID header, LoadedFeature *feature, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -1042,7 +481,7 @@ static INT GSUB_apply_feature_all_lookups(LPCVOID header, LoadedFeature *feature
|
|||
TRACE("%i lookups\n", feature->lookup_count);
|
||||
for (i = 0; i < feature->lookup_count; i++)
|
||||
{
|
||||
out_index = apply_GSUB_lookup(header, feature->lookups[i], glyphs, glyph_index, write_dir, glyph_count);
|
||||
out_index = OpenType_apply_GSUB_lookup(header, feature->lookups[i], glyphs, glyph_index, write_dir, glyph_count);
|
||||
if (out_index != GSUB_E_NOGLYPH)
|
||||
break;
|
||||
}
|
||||
|
|
@ -1122,13 +561,13 @@ static LoadedFeature* load_GSUB_feature(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCac
|
|||
language = MS_MAKE_TAG('d','f','l','t');
|
||||
attempt--;
|
||||
|
||||
GSUB_GetFontFeatureTags(psc, script, language, FALSE, MS_MAKE_TAG(feat[0],feat[1],feat[2],feat[3]), 1, &tags, &cTags, &feature);
|
||||
OpenType_GSUB_GetFontFeatureTags(psc, script, language, FALSE, MS_MAKE_TAG(feat[0],feat[1],feat[2],feat[3]), 1, &tags, &cTags, &feature);
|
||||
|
||||
} while(attempt && !feature);
|
||||
|
||||
/* try in the default (latin) table */
|
||||
if (!feature)
|
||||
GSUB_GetFontFeatureTags(psc, MS_MAKE_TAG('l','a','t','n'), MS_MAKE_TAG('d','f','l','t'), FALSE, MS_MAKE_TAG(feat[0],feat[1],feat[2],feat[3]), 1, &tags, &cTags, &feature);
|
||||
OpenType_GSUB_GetFontFeatureTags(psc, MS_MAKE_TAG('l','a','t','n'), MS_MAKE_TAG('d','f','l','t'), FALSE, MS_MAKE_TAG(feat[0],feat[1],feat[2],feat[3]), 1, &tags, &cTags, &feature);
|
||||
}
|
||||
|
||||
TRACE("Feature %s located at %p\n",debugstr_an(feat,4),feature);
|
||||
|
|
@ -1150,11 +589,11 @@ static INT apply_GSUB_feature_to_glyph(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCach
|
|||
static VOID *load_gsub_table(HDC hdc)
|
||||
{
|
||||
VOID* GSUB_Table = NULL;
|
||||
int length = GetFontData(hdc, GSUB_TAG , 0, NULL, 0);
|
||||
int length = GetFontData(hdc, MS_MAKE_TAG('G', 'S', 'U', 'B'), 0, NULL, 0);
|
||||
if (length != GDI_ERROR)
|
||||
{
|
||||
GSUB_Table = HeapAlloc(GetProcessHeap(),0,length);
|
||||
GetFontData(hdc, GSUB_TAG , 0, GSUB_Table, length);
|
||||
GetFontData(hdc, MS_MAKE_TAG('G', 'S', 'U', 'B'), 0, GSUB_Table, length);
|
||||
TRACE("Loaded GSUB table of %i bytes\n",length);
|
||||
}
|
||||
return GSUB_Table;
|
||||
|
|
@ -1322,7 +761,7 @@ static int apply_GSUB_feature(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, W
|
|||
INT nextIndex;
|
||||
INT prevCount = *pcGlyphs;
|
||||
|
||||
nextIndex = apply_GSUB_lookup(psc->GSUB_Table, feature->lookups[lookup_index], pwOutGlyphs, i, write_dir, pcGlyphs);
|
||||
nextIndex = OpenType_apply_GSUB_lookup(psc->GSUB_Table, feature->lookups[lookup_index], pwOutGlyphs, i, write_dir, pcGlyphs);
|
||||
if (*pcGlyphs != prevCount)
|
||||
{
|
||||
UpdateClusters(nextIndex, *pcGlyphs - prevCount, write_dir, cChars, pwLogClust);
|
||||
|
|
@ -1343,7 +782,7 @@ static inline BOOL get_GSUB_Indic2(SCRIPT_ANALYSIS *psa, ScriptCache *psc)
|
|||
HRESULT hr;
|
||||
int count = 0;
|
||||
|
||||
hr = GSUB_GetFontScriptTags(psc, ShapingData[psa->eScript].newOtTag, 1, &tag, &count, NULL);
|
||||
hr = OpenType_GSUB_GetFontScriptTags(psc, ShapingData[psa->eScript].newOtTag, 1, &tag, &count, NULL);
|
||||
|
||||
return(SUCCEEDED(hr));
|
||||
}
|
||||
|
|
@ -3432,264 +2871,6 @@ HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANA
|
|||
return USP_E_SCRIPT_NOT_IN_FONT;
|
||||
}
|
||||
|
||||
static void GSUB_initialize_script_cache(ScriptCache *psc)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!psc->script_count)
|
||||
{
|
||||
const GSUB_ScriptList *script;
|
||||
const GSUB_Header* header = (const GSUB_Header*)psc->GSUB_Table;
|
||||
script = (const GSUB_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);
|
||||
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].table = ((const BYTE*)script + offset);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static HRESULT GSUB_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags, LPCVOID* script_table)
|
||||
{
|
||||
int i;
|
||||
HRESULT rc = S_OK;
|
||||
|
||||
GSUB_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;
|
||||
if (script_table)
|
||||
*script_table = psc->scripts[i].table;
|
||||
rc = S_OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void GSUB_initialize_language_cache(LoadedScript *script)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!script->language_count)
|
||||
{
|
||||
const GSUB_Script* table = script->table;
|
||||
script->language_count = GET_BE_WORD(table->LangSysCount);
|
||||
script->default_language.tag = MS_MAKE_TAG('d','f','l','t');
|
||||
script->default_language.table = (const BYTE*)table + GET_BE_WORD(table->DefaultLangSys);
|
||||
|
||||
TRACE("Deflang %p, LangCount %i\n",script->default_language.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].table = ((const BYTE*)table + offset);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static HRESULT GSUB_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags, LPCVOID* language_table)
|
||||
{
|
||||
int i;
|
||||
HRESULT rc = S_OK;
|
||||
LoadedScript *script = NULL;
|
||||
|
||||
GSUB_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;
|
||||
|
||||
GSUB_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;
|
||||
if (language_table)
|
||||
*language_table = script->languages[i].table;
|
||||
rc = S_OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (script->default_language.table)
|
||||
{
|
||||
if (i < cMaxTags)
|
||||
pLanguageTags[i] = script->default_language.tag;
|
||||
|
||||
if (searchingFor && FAILED(rc))
|
||||
{
|
||||
pLanguageTags[0] = script->default_language.tag;
|
||||
if (language_table)
|
||||
*language_table = script->default_language.table;
|
||||
}
|
||||
i++;
|
||||
*pcTags = (*pcTags) + 1;
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void GSUB_initialize_feature_cache(LPCVOID table, LoadedLanguage *language)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!language->feature_count)
|
||||
{
|
||||
const GSUB_LangSys *lang= language->table;
|
||||
const GSUB_Header *header = (const GSUB_Header *)table;
|
||||
const GSUB_FeatureList *feature_list;
|
||||
|
||||
language->feature_count = GET_BE_WORD(lang->FeatureCount);
|
||||
TRACE("%i features\n",language->feature_count);
|
||||
|
||||
language->features = HeapAlloc(GetProcessHeap(),0,sizeof(LoadedFeature)*language->feature_count);
|
||||
|
||||
feature_list = (const GSUB_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList));
|
||||
|
||||
for (i = 0; i < language->feature_count; i++)
|
||||
{
|
||||
const GSUB_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 GSUB_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]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static HRESULT GSUB_GetFontFeatureTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG language_tag, BOOL filtered, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags, LoadedFeature** feature)
|
||||
{
|
||||
int i;
|
||||
HRESULT rc = S_OK;
|
||||
LoadedScript *script = NULL;
|
||||
LoadedLanguage *language = NULL;
|
||||
|
||||
GSUB_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;
|
||||
}
|
||||
|
||||
GSUB_initialize_language_cache(script);
|
||||
|
||||
if (script->default_language.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;
|
||||
}
|
||||
|
||||
GSUB_initialize_feature_cache(psc->GSUB_Table, language);
|
||||
|
||||
*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)
|
||||
pFeatureTags[i] = language->features[i].tag;
|
||||
|
||||
if (searchingFor)
|
||||
{
|
||||
if (searchingFor == language->features[i].tag)
|
||||
{
|
||||
pFeatureTags[0] = language->features[i].tag;
|
||||
*pcTags = 1;
|
||||
if (feature)
|
||||
*feature = &language->features[i];
|
||||
rc = S_OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
||||
HRESULT SHAPE_GetFontScriptTags( HDC hdc, ScriptCache *psc,
|
||||
SCRIPT_ANALYSIS *psa, int cMaxTags,
|
||||
OPENTYPE_TAG *pScriptTags, int *pcTags)
|
||||
|
|
@ -3703,7 +2884,7 @@ HRESULT SHAPE_GetFontScriptTags( HDC hdc, ScriptCache *psc,
|
|||
if (psa && scriptInformation[psa->eScript].scriptTag)
|
||||
searching = scriptInformation[psa->eScript].scriptTag;
|
||||
|
||||
hr = GSUB_GetFontScriptTags(psc, searching, cMaxTags, pScriptTags, pcTags, NULL);
|
||||
hr = OpenType_GSUB_GetFontScriptTags(psc, searching, cMaxTags, pScriptTags, pcTags, NULL);
|
||||
if (FAILED(hr))
|
||||
*pcTags = 0;
|
||||
return hr;
|
||||
|
|
@ -3724,11 +2905,11 @@ HRESULT SHAPE_GetFontLanguageTags( HDC hdc, ScriptCache *psc,
|
|||
if (psa && psc->userLang != 0)
|
||||
searching = psc->userLang;
|
||||
|
||||
hr = GSUB_GetFontLanguageTags(psc, tagScript, searching, cMaxTags, pLangSysTags, pcTags, NULL);
|
||||
hr = OpenType_GSUB_GetFontLanguageTags(psc, tagScript, searching, cMaxTags, pLangSysTags, pcTags, NULL);
|
||||
if (FAILED(hr))
|
||||
{
|
||||
fellback = TRUE;
|
||||
hr = GSUB_GetFontLanguageTags(psc, MS_MAKE_TAG('l','a','t','n'), searching, cMaxTags, pLangSysTags, pcTags, NULL);
|
||||
hr = OpenType_GSUB_GetFontLanguageTags(psc, MS_MAKE_TAG('l','a','t','n'), searching, cMaxTags, pLangSysTags, pcTags, NULL);
|
||||
}
|
||||
|
||||
if (FAILED(hr) || fellback)
|
||||
|
|
@ -3755,7 +2936,7 @@ HRESULT SHAPE_GetFontFeatureTags( HDC hdc, ScriptCache *psc,
|
|||
filter = TRUE;
|
||||
}
|
||||
|
||||
hr = GSUB_GetFontFeatureTags(psc, tagScript, tagLangSys, filter, 0x00000000, cMaxTags, pFeatureTags, pcTags, NULL);
|
||||
hr = OpenType_GSUB_GetFontFeatureTags(psc, tagScript, tagLangSys, filter, 0x00000000, cMaxTags, pFeatureTags, pcTags, NULL);
|
||||
|
||||
if (FAILED(hr))
|
||||
*pcTags = 0;
|
||||
|
|
|
|||
|
|
@ -125,6 +125,9 @@
|
|||
#define GLYPH_BLOCK_MASK (GLYPH_BLOCK_SIZE - 1)
|
||||
#define GLYPH_MAX 65536
|
||||
|
||||
#define GSUB_E_NOFEATURE -2
|
||||
#define GSUB_E_NOGLYPH -1
|
||||
|
||||
typedef struct {
|
||||
OPENTYPE_TAG tag;
|
||||
LPCVOID feature;
|
||||
|
|
@ -223,3 +226,7 @@ void BREAK_line(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT
|
|||
|
||||
DWORD OpenType_CMAP_GetGlyphIndex(HDC hdc, ScriptCache *psc, DWORD utf32c, LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN;
|
||||
void OpenType_GDEF_UpdateGlyphProps(HDC hdc, ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, const WORD cChars, SCRIPT_GLYPHPROP *pGlyphProp) DECLSPEC_HIDDEN;
|
||||
INT OpenType_apply_GSUB_lookup(LPCVOID table, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) DECLSPEC_HIDDEN;
|
||||
HRESULT OpenType_GSUB_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags, LPCVOID* script_table) DECLSPEC_HIDDEN;
|
||||
HRESULT OpenType_GSUB_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags, LPCVOID* language_table) DECLSPEC_HIDDEN;
|
||||
HRESULT OpenType_GSUB_GetFontFeatureTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG language_tag, BOOL filtered, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags, LoadedFeature** feature) DECLSPEC_HIDDEN;
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Reference in New Issue