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usp10: Implement MarkToMark Attachment Positioning Subtable.

This commit is contained in:
Aric Stewart 2012-08-16 08:03:58 -05:00 committed by Alexandre Julliard
parent 1051a107a4
commit af318c5fd0
1 changed files with 96 additions and 0 deletions
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96
dlls/usp10/opentype.c
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@ -390,6 +390,24 @@ typedef struct {
GPOS_MarkRecord MarkRecord[1];
} GPOS_MarkArray;
typedef struct {
WORD PosFormat;
WORD Mark1Coverage;
WORD Mark2Coverage;
WORD ClassCount;
WORD Mark1Array;
WORD Mark2Array;
} GPOS_MarkMarkPosFormat1;
typedef struct {
WORD Mark2Anchor[1];
} GPOS_Mark2Record;
typedef struct {
WORD Mark2Count;
GPOS_Mark2Record Mark2Record[1];
} GPOS_Mark2Array;
typedef struct {
WORD SequenceIndex;
WORD LookupListIndex;
@ -1292,6 +1310,71 @@ static VOID GPOS_apply_MarkToBase(const OT_LookupTable *look, const WORD *glyphs
}
}
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;
@ -1460,6 +1543,19 @@ static INT GPOS_apply_lookup(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, I
}
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);