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[unsafe-to-concat] Adjust GPOS lookbacks 

Fixes Cursive aots test, fails a couple new aots ones.
This commit is contained in:
Behdad Esfahbod 2022-01-22 10:16:23 -07:00
parent 909e34f68a
commit 95d052a791
1 changed files with 5 additions and 5 deletions
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10
src/hb-ot-layout-gpos-table.hh
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@ -1881,14 +1881,14 @@ struct CursivePosFormat1
unsigned unsafe_from; unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from)) if (!skippy_iter.prev (&unsafe_from))
{ {
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx); buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx + 1);
return_trace (false); return_trace (false);
} }
const EntryExitRecord &prev_record = entryExitRecord[(this+coverage).get_coverage (buffer->info[skippy_iter.idx].codepoint)]; const EntryExitRecord &prev_record = entryExitRecord[(this+coverage).get_coverage (buffer->info[skippy_iter.idx].codepoint)];
if (!prev_record.exitAnchor) if (!prev_record.exitAnchor)
{ {
buffer->unsafe_to_concat_from_outbuffer (skippy_iter.idx, buffer->idx); buffer->unsafe_to_concat_from_outbuffer (skippy_iter.idx, buffer->idx + 1);
return_trace (false); return_trace (false);
} }
@ -2157,7 +2157,7 @@ struct MarkBasePosFormat1
unsigned unsafe_from; unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from)) if (!skippy_iter.prev (&unsafe_from))
{ {
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx); buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx + 1);
return_trace (false); return_trace (false);
} }
@ -2417,7 +2417,7 @@ struct MarkLigPosFormat1
unsigned unsafe_from; unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from)) if (!skippy_iter.prev (&unsafe_from))
{ {
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx); buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx + 1);
return_trace (false); return_trace (false);
} }
@ -2619,7 +2619,7 @@ struct MarkMarkPosFormat1
unsigned unsafe_from; unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from)) if (!skippy_iter.prev (&unsafe_from))
{ {
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx); buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx + 1);
return_trace (false); return_trace (false);
} }