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dwrite: Use attachment chain for marks positioning. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2021-02-08 10:09:41 +03:00 committed by Alexandre Julliard
parent db3a258f97
commit 988dc7753a
1 changed files with 27 additions and 1 deletions
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28
dlls/dwrite/opentype.c
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@ -479,6 +479,7 @@ enum gsub_gpos_lookup_flags
enum attach_type
{
GLYPH_ATTACH_NONE = 0,
GLYPH_ATTACH_MARK,
GLYPH_ATTACH_CURSIVE,
};
@ -4221,6 +4222,10 @@ static BOOL opentype_layout_apply_mark_array(struct scriptshaping_context *conte
else
context->offsets[context->cur].advanceOffset = -context->advances[glyph_pos] + base_x - mark_x;
context->offsets[context->cur].ascenderOffset = base_y - mark_y;
opentype_set_glyph_attach_type(context, context->cur, GLYPH_ATTACH_MARK);
context->glyph_infos[context->cur].attach_chain = (int)glyph_pos - (int)context->cur;
context->has_gpos_attachment = 1;
context->cur++;
return TRUE;
@ -4781,7 +4786,7 @@ static void opentype_propagate_attachment_offsets(struct scriptshaping_context *
{
enum attach_type type = opentype_get_glyph_attach_type(context, i);
int chain = context->glyph_infos[i].attach_chain;
unsigned int j;
unsigned int j, k;
if (!chain)
return;
@ -4799,6 +4804,27 @@ static void opentype_propagate_attachment_offsets(struct scriptshaping_context *
/* FIXME: handle vertical direction. */
context->offsets[i].ascenderOffset += context->offsets[j].ascenderOffset;
}
else if (type == GLYPH_ATTACH_MARK)
{
context->offsets[i].advanceOffset += context->offsets[j].advanceOffset;
context->offsets[i].ascenderOffset += context->offsets[j].ascenderOffset;
/* FIXME: handle vertical adjustment. */
if (context->is_rtl)
{
for (k = j + 1; k < i + 1; ++k)
{
context->offsets[i].advanceOffset += context->advances[k];
}
}
else
{
for (k = j; k < i; k++)
{
context->offsets[i].advanceOffset -= context->advances[k];
}
}
}
}
void opentype_layout_apply_gpos_features(struct scriptshaping_context *context, unsigned int script_index,