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usp10: Support GPOS extension lookup subtables.

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This commit is contained in:
Phil Krylov 2013-03-08 20:24:59 +04:00 committed by Alexandre Julliard
parent 9fa1570fe6
commit c9cbde73c0
1 changed files with 62 additions and 31 deletions
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93
dlls/usp10/opentype.c
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@ -479,6 +479,12 @@ typedef struct {
GPOS_PosLookupRecord PosLookupRecord[1]; GPOS_PosLookupRecord PosLookupRecord[1];
} GPOS_ChainContextPosFormat3_4; } GPOS_ChainContextPosFormat3_4;
typedef struct {
WORD PosFormat;
WORD ExtensionLookupType;
DWORD ExtensionOffset;
} GPOS_ExtensionPosFormat1;
/********** /**********
* CMAP * CMAP
**********/ **********/
@ -1166,6 +1172,25 @@ static VOID GPOS_get_value_record_offsets(const BYTE* head, GPOS_ValueRecord *Va
if (ValueFormat & 0xFF00) FIXME("Unhandled Value Format %x\n",ValueFormat&0xFF00); if (ValueFormat & 0xFF00) FIXME("Unhandled Value Format %x\n",ValueFormat&0xFF00);
} }
static const BYTE *GPOS_get_subtable(const OT_LookupTable *look, int index)
{
int offset = GET_BE_WORD(look->SubTable[index]);
if (GET_BE_WORD(look->LookupType) == 9)
{
const GPOS_ExtensionPosFormat1 *ext = (const GPOS_ExtensionPosFormat1 *)((const BYTE *)look + offset);
if (GET_BE_WORD(ext->PosFormat) == 1)
{
offset += GET_BE_DWORD(ext->ExtensionOffset);
}
else
{
FIXME("Unhandled Extension Positioning Format %i\n",GET_BE_WORD(ext->PosFormat));
}
}
return (const BYTE *)look + offset;
}
static VOID GPOS_apply_SingleAdjustment(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, static VOID GPOS_apply_SingleAdjustment(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index,
INT glyph_count, INT ppem, LPPOINT ptAdjust, LPPOINT ptAdvance) INT glyph_count, INT ppem, LPPOINT ptAdjust, LPPOINT ptAdvance)
{ {
@ -1175,9 +1200,8 @@ static VOID GPOS_apply_SingleAdjustment(const OT_LookupTable *look, const SCRIPT
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
const GPOS_SinglePosFormat1 *spf1; const GPOS_SinglePosFormat1 *spf1 = (const GPOS_SinglePosFormat1*)GPOS_get_subtable(look, j);
WORD offset = GET_BE_WORD(look->SubTable[j]); WORD offset;
spf1 = (const GPOS_SinglePosFormat1*)((const BYTE*)look+offset);
if (GET_BE_WORD(spf1->PosFormat) == 1) if (GET_BE_WORD(spf1->PosFormat) == 1)
{ {
offset = GET_BE_WORD(spf1->Coverage); offset = GET_BE_WORD(spf1->Coverage);
@ -1253,9 +1277,8 @@ static INT GPOS_apply_PairAdjustment(const OT_LookupTable *look, const SCRIPT_AN
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
const GPOS_PairPosFormat1 *ppf1; const GPOS_PairPosFormat1 *ppf1 = (const GPOS_PairPosFormat1*)GPOS_get_subtable(look, j);
WORD offset = GET_BE_WORD(look->SubTable[j]); WORD offset;
ppf1 = (const GPOS_PairPosFormat1*)((const BYTE*)look+offset);
if (GET_BE_WORD(ppf1->PosFormat) == 1) if (GET_BE_WORD(ppf1->PosFormat) == 1)
{ {
int index; int index;
@ -1292,7 +1315,7 @@ static INT GPOS_apply_PairAdjustment(const OT_LookupTable *look, const SCRIPT_AN
} }
else if (GET_BE_WORD(ppf1->PosFormat) == 2) else if (GET_BE_WORD(ppf1->PosFormat) == 2)
{ {
const GPOS_PairPosFormat2 *ppf2 = (const GPOS_PairPosFormat2*)((const BYTE*)look + offset); const GPOS_PairPosFormat2 *ppf2 = (const GPOS_PairPosFormat2*)ppf1;
int index; int index;
WORD ValueFormat1 = GET_BE_WORD( ppf2->ValueFormat1 ); WORD ValueFormat1 = GET_BE_WORD( ppf2->ValueFormat1 );
WORD ValueFormat2 = GET_BE_WORD( ppf2->ValueFormat2 ); WORD ValueFormat2 = GET_BE_WORD( ppf2->ValueFormat2 );
@ -1339,13 +1362,11 @@ static VOID GPOS_apply_CursiveAttachment(const OT_LookupTable *look, const SCRIP
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
const GPOS_CursivePosFormat1 *cpf1; const GPOS_CursivePosFormat1 *cpf1 = (const GPOS_CursivePosFormat1 *)GPOS_get_subtable(look, j);
WORD offset = GET_BE_WORD(look->SubTable[j]);
cpf1 = (const GPOS_CursivePosFormat1*)((const BYTE*)look+offset);
if (GET_BE_WORD(cpf1->PosFormat) == 1) if (GET_BE_WORD(cpf1->PosFormat) == 1)
{ {
int index_exit, index_entry; int index_exit, index_entry;
offset = GET_BE_WORD( cpf1->Coverage ); WORD offset = GET_BE_WORD( cpf1->Coverage );
index_exit = GSUB_is_glyph_covered((const BYTE*)cpf1+offset, glyphs[glyph_index]); index_exit = GSUB_is_glyph_covered((const BYTE*)cpf1+offset, glyphs[glyph_index]);
if (index_exit != -1 && cpf1->EntryExitRecord[index_exit].ExitAnchor!= 0) if (index_exit != -1 && cpf1->EntryExitRecord[index_exit].ExitAnchor!= 0)
{ {
@ -1389,10 +1410,7 @@ static int GPOS_apply_MarkToBase(ScriptCache *psc, const OT_LookupTable *look, c
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
int offset; const GPOS_MarkBasePosFormat1 *mbpf1 = (const GPOS_MarkBasePosFormat1 *)GPOS_get_subtable(look, j);
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) if (GET_BE_WORD(mbpf1->PosFormat) == 1)
{ {
int offset = GET_BE_WORD(mbpf1->MarkCoverage); int offset = GET_BE_WORD(mbpf1->MarkCoverage);
@ -1466,10 +1484,7 @@ static VOID GPOS_apply_MarkToLigature(const OT_LookupTable *look, const SCRIPT_A
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
int offset; const GPOS_MarkLigPosFormat1 *mlpf1 = (const GPOS_MarkLigPosFormat1 *)GPOS_get_subtable(look, j);
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) if (GET_BE_WORD(mlpf1->PosFormat) == 1)
{ {
int offset = GET_BE_WORD(mlpf1->MarkCoverage); int offset = GET_BE_WORD(mlpf1->MarkCoverage);
@ -1560,10 +1575,7 @@ static BOOL GPOS_apply_MarkToMark(const OT_LookupTable *look, const SCRIPT_ANALY
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
int offset; const GPOS_MarkMarkPosFormat1 *mmpf1 = (const GPOS_MarkMarkPosFormat1 *)GPOS_get_subtable(look, j);
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) if (GET_BE_WORD(mmpf1->PosFormat) == 1)
{ {
int offset = GET_BE_WORD(mmpf1->Mark1Coverage); int offset = GET_BE_WORD(mmpf1->Mark1Coverage);
@ -1590,7 +1602,7 @@ static BOOL GPOS_apply_MarkToMark(const OT_LookupTable *look, const SCRIPT_ANALY
ma = (const GPOS_MarkArray*)((const BYTE*)mmpf1 + offset); ma = (const GPOS_MarkArray*)((const BYTE*)mmpf1 + offset);
if (mark_index > GET_BE_WORD(ma->MarkCount)) if (mark_index > GET_BE_WORD(ma->MarkCount))
{ {
ERR("Mark index exeeded mark count\n"); ERR("Mark index exceeded mark count\n");
return FALSE; return FALSE;
} }
mr = &ma->MarkRecord[mark_index]; mr = &ma->MarkRecord[mark_index];
@ -1631,13 +1643,10 @@ static INT GPOS_apply_ChainContextPos(ScriptCache *psc, LPOUTLINETEXTMETRICW lpo
for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++)
{ {
int offset; int offset;
const GPOS_ChainContextPosFormat3_1 *ccpf3; const GPOS_ChainContextPosFormat3_1 *ccpf3 = (GPOS_ChainContextPosFormat3_1 *)GPOS_get_subtable(look, j);
int dirLookahead = write_dir; int dirLookahead = write_dir;
int dirBacktrack = -1 * 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) if (GET_BE_WORD(ccpf3->PosFormat) == 1)
{ {
FIXME(" TODO: subtype 1 (Simple Chaining Context Glyph Positioning)\n"); FIXME(" TODO: subtype 1 (Simple Chaining Context Glyph Positioning)\n");
@ -1723,11 +1732,33 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
int offset; int offset;
const OT_LookupTable *look; const OT_LookupTable *look;
int ppem = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading; int ppem = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading;
WORD type;
offset = GET_BE_WORD(lookup->Lookup[lookup_index]); offset = GET_BE_WORD(lookup->Lookup[lookup_index]);
look = (const OT_LookupTable*)((const BYTE*)lookup + offset); 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)); type = GET_BE_WORD(look->LookupType);
switch(GET_BE_WORD(look->LookupType)) TRACE("type %i, flag %x, subtables %i\n",type,GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount));
if (type == 9)
{
if (GET_BE_WORD(look->SubTableCount))
{
const GPOS_ExtensionPosFormat1 *ext = (const GPOS_ExtensionPosFormat1 *)((const BYTE *)look + GET_BE_WORD(look->SubTable[0]));
if (GET_BE_WORD(ext->PosFormat) == 1)
{
type = GET_BE_WORD(ext->ExtensionLookupType);
TRACE("extension type %i\n",type);
}
else
{
FIXME("Unhandled Extension Positioning Format %i\n",GET_BE_WORD(ext->PosFormat));
}
}
else
{
WARN("lookup type is Extension Positioning but no extension subtable exists\n");
}
}
switch (type)
{ {
case 1: case 1:
{ {
@ -1849,7 +1880,7 @@ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOG
return GPOS_apply_ChainContextPos(psc, lpotm, lplogfont, analysis, piAdvance, lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset); return GPOS_apply_ChainContextPos(psc, lpotm, lplogfont, analysis, piAdvance, lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset);
} }
default: default:
FIXME("We do not handle SubType %i\n",GET_BE_WORD(look->LookupType)); FIXME("We do not handle SubType %i\n",type);
} }
return glyph_index+1; return glyph_index+1;
} }