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Undo / Redo memory conservation strategy: Release recoverable data

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starting from the objects of lowest ObjectID.
(convex hulls are recoverable as well as the indexed triangle sets
inside the TriangleMeshes or the triangle connectivity information).

Now the top most snapshot (the temp one taken before Undo jump) will
never be released.
This commit is contained in:
bubnikv 2019-07-18 11:51:06 +02:00
parent cc1338ce6a
commit cd95b52dcd
5 changed files with 162 additions and 13 deletions
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6
src/libslic3r/TriangleMesh.hpp
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@ -67,8 +67,12 @@ public:
size_t facets_count() const { return this->stl.stats.number_of_facets; }
bool empty() const { return this->facets_count() == 0; }
bool is_splittable() const;
// Estimate of the memory occupied by this structure.
// Estimate of the memory occupied by this structure, important for keeping an eye on the Undo / Redo stack allocation.
size_t memsize() const;
// Release optional data from the mesh if the object is on the Undo / Redo stack only. Returns the amount of memory released.
size_t release_optional();
// Restore optional data possibly released by release_optional().
void restore_optional();
stl_file stl;
indexed_triangle_set its;