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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-graphite2.cc')
-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-graphite2.cc26
1 files changed, 14 insertions, 12 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-graphite2.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-graphite2.cc
index 46fe1399913..c20f6bef2d8 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-graphite2.cc
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-graphite2.cc
@@ -79,10 +79,12 @@ static const void *hb_graphite2_get_table (const void *data, unsigned int tag, s
p->blob = blob;
p->tag = tag;
- /* TODO Not thread-safe, but fairly harmless.
- * We can do the double-checked pointer cmpexch thing here. */
- p->next = face_data->tlist;
- face_data->tlist = p;
+retry:
+ hb_graphite2_tablelist_t *tlist = (hb_graphite2_tablelist_t *) hb_atomic_ptr_get (&face_data->tlist);
+ p->next = tlist;
+
+ if (!hb_atomic_ptr_cmpexch (&face_data->tlist, tlist, p))
+ goto retry;
}
unsigned int tlen;
@@ -381,11 +383,11 @@ _hb_graphite2_shape (hb_shape_plan_t *shape_plan,
pPos->x_offset = gr_slot_origin_X (is) * xscale - curradvx;
pPos->y_offset = gr_slot_origin_Y (is) * yscale - curradvy;
if (info->cluster != currclus) {
- pPos->x_advance = info->var1.i32 * xscale;
- curradvx += pPos->x_advance;
- currclus = info->cluster;
+ pPos->x_advance = info->var1.i32 * xscale;
+ curradvx += pPos->x_advance;
+ currclus = info->cluster;
} else
- pPos->x_advance = 0.;
+ pPos->x_advance = 0.;
pPos->y_advance = gr_slot_advance_Y (is, grface, nullptr) * yscale;
curradvy += pPos->y_advance;
@@ -398,11 +400,11 @@ _hb_graphite2_shape (hb_shape_plan_t *shape_plan,
{
if (info->cluster != currclus)
{
- pPos->x_advance = info->var1.i32 * xscale;
- curradvx -= pPos->x_advance;
- currclus = info->cluster;
+ pPos->x_advance = info->var1.i32 * xscale;
+ curradvx -= pPos->x_advance;
+ currclus = info->cluster;
} else
- pPos->x_advance = 0.;
+ pPos->x_advance = 0.;
pPos->y_advance = gr_slot_advance_Y (is, grface, nullptr) * yscale;
curradvy -= pPos->y_advance;