Reduce poly map memory usage (used by sculpt smooth brush.)

Changed the create_vert_poly_map function to return a more compact
structure. Memory saved will vary depending on the mesh, but typically
it should be about one third of the old size.

1 files changed, 3 insertions, 6 deletions

diff --git a/source/blender/blenkernel/BKE_subsurf.h b/source/blender/blenkernel/BKE_subsurf.h
index 10254545d3e..7f9881926a6 100644
--- a/source/blender/blenkernel/BKE_subsurf.h
+++ b/source/blender/blenkernel/BKE_subsurf.h
@@ -38,8 +38,7 @@ struct DMFlagMat;
 struct DMGridAdjacency;
 struct DMGridData;
 struct DerivedMesh;
-struct IndexNode;
-struct ListBase;
+struct MeshElemMap;
 struct Mesh;
 struct MPoly;
 struct MultiresSubsurf;
@@ -105,11 +104,9 @@ typedef struct CCGDerivedMesh {
 	int *reverseFaceMap;
 
 	struct PBVH *pbvh;
-	struct ListBase *fmap;
-	struct IndexNode *fmap_mem;
 
-	struct ListBase *pmap;
-	struct IndexNode *pmap_mem;
+	struct MeshElemMap *pmap;
+	int *pmap_mem;
 
 	struct DMGridData **gridData;
 	struct DMGridAdjacency *gridAdjacency;