Cleanup: minor improvement to boundary check
Use a byte flag instead of counting polys using edges (technically a fix for edges with USHRT_MAX+2 users).
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@ -130,25 +130,24 @@ static void mesh_get_boundaries(Mesh *mesh, float *smooth_weights)
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const MEdge *medge = BKE_mesh_edges(mesh);
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const MPoly *mpoly = BKE_mesh_polys(mesh);
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const MLoop *mloop = BKE_mesh_loops(mesh);
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uint mpoly_num, medge_num, i;
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ushort *boundaries;
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mpoly_num = (uint)mesh->totpoly;
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medge_num = (uint)mesh->totedge;
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const uint mpoly_num = (uint)mesh->totpoly;
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const uint medge_num = (uint)mesh->totedge;
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boundaries = MEM_calloc_arrayN(medge_num, sizeof(*boundaries), __func__);
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/* Flag boundary edges so only boundaries are set to 1. */
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uint8_t *boundaries = MEM_calloc_arrayN(medge_num, sizeof(*boundaries), __func__);
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/* count the number of adjacent faces */
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for (i = 0; i < mpoly_num; i++) {
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for (uint i = 0; i < mpoly_num; i++) {
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const MPoly *p = &mpoly[i];
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const int totloop = p->totloop;
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int j;
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for (j = 0; j < totloop; j++) {
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boundaries[mloop[p->loopstart + j].e]++;
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uint8_t *e_value = &boundaries[mloop[p->loopstart + j].e];
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*e_value |= (*e_value) + 1;
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}
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}
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for (i = 0; i < medge_num; i++) {
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for (uint i = 0; i < medge_num; i++) {
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if (boundaries[i] == 1) {
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smooth_weights[medge[i].v1] = 0.0f;
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smooth_weights[medge[i].v2] = 0.0f;
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