SLA archive import with miniz, marching square bugfixes

Fix compilation on Windows


Fix array subscript out of range error in MarchingSquares


Fix normals of mesh constructed from slices


Improve performance of mesh construction from slices

src/slic3r/Utils/SLAImport.hpp

@@ -0,0 +1,36 @@
+#ifndef SLAIMPORT_HPP
+#define SLAIMPORT_HPP
+
+#include <functional>
+
+#include <libslic3r/Point.hpp>
+#include <libslic3r/TriangleMesh.hpp>
+#include <libslic3r/PrintConfig.hpp>
+
+namespace Slic3r {
+
+class TriangleMesh;
+class DynamicPrintConfig;
+
+void import_sla_archive(const std::string &zipfname, DynamicPrintConfig &out);
+
+void import_sla_archive(
+    const std::string &      zipfname,
+    Vec2i                    windowsize,
+    TriangleMesh &           out,
+    DynamicPrintConfig &     profile,
+    std::function<bool(int)> progr = [](int) { return true; });
+
+inline void import_sla_archive(
+    const std::string &      zipfname,
+    Vec2i                    windowsize,
+    TriangleMesh &           out,
+    std::function<bool(int)> progr = [](int) { return true; })
+{
+    DynamicPrintConfig profile;
+    import_sla_archive(zipfname, windowsize, out, profile, progr);
+}
+
+}
+
+#endif // SLAIMPORT_HPP