321   ALLOCATE_ARRAY (hb_graphite2_cluster_t, clusters, buffer->len);  in _hb_graphite2_shape()
326   hb_memset (clusters, 0, sizeof (clusters[0]) * buffer->len);  in _hb_graphite2_shape()
329   clusters[0].cluster = buffer->info[0].cluster;  in _hb_graphite2_shape()
338     clusters[0].advance = gr_seg_advance_X(seg) * xscale - curradv;  in _hb_graphite2_shape()
341     clusters[0].advance = 0;  in _hb_graphite2_shape()
348     while (clusters[ci].base_char > before && ci)  in _hb_graphite2_shape()
350       clusters[ci-1].num_chars += clusters[ci].num_chars;  in _hb_graphite2_shape()
351       clusters[ci-1].num_glyphs += clusters[ci].num_glyphs;  in _hb_graphite2_shape()
352       clusters[ci-1].advance += clusters[ci].advance;  in _hb_graphite2_shape()
356 …if (gr_slot_can_insert_before (is) && clusters[ci].num_chars && before >= clusters[ci].base_char +…  in _hb_graphite2_shape()
358       hb_graphite2_cluster_t *c = clusters + ci + 1;  in _hb_graphite2_shape()
359       c->base_char = clusters[ci].base_char + clusters[ci].num_chars;  in _hb_graphite2_shape()
373 	clusters[ci].advance += origin_X - curradv;  in _hb_graphite2_shape()
378     clusters[ci].num_glyphs++;  in _hb_graphite2_shape()
380     if (clusters[ci].base_char + clusters[ci].num_chars < after + 1)  in _hb_graphite2_shape()
381 	clusters[ci].num_chars = after + 1 - clusters[ci].base_char;  in _hb_graphite2_shape()
385     clusters[ci].advance += curradv;  in _hb_graphite2_shape()
387     clusters[ci].advance += gr_seg_advance_X(seg) * xscale - curradv;  in _hb_graphite2_shape()
392     for (unsigned int j = 0; j < clusters[i].num_glyphs; ++j)  in _hb_graphite2_shape()
394       hb_glyph_info_t *info = &buffer->info[clusters[i].base_glyph + j];  in _hb_graphite2_shape()
395       info->codepoint = gids[clusters[i].base_glyph + j];  in _hb_graphite2_shape()
396       info->cluster = clusters[i].cluster;  in _hb_graphite2_shape()
397       info->var1.i32 = clusters[i].advance;     // all glyphs in the cluster get the same advance  in _hb_graphite2_shape()