1 files changed, 57 insertions, 0 deletions
diff --git a/source/blender/io/usd/import/usd_data_cache.cc b/source/blender/io/usd/import/usd_data_cache.cc
new file mode 100644
index 00000000000..55558aba517
--- /dev/null
+++ b/source/blender/io/usd/import/usd_data_cache.cc
@@ -0,0 +1,57 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2020 Blender Foundation.
+ * All rights reserved.
+ */
+
+#include "usd_data_cache.h"
+
+#include <iostream>
+
+namespace blender::io::usd {
+
+USDDataCache::USDDataCache()
+{
+}
+
+USDDataCache::~USDDataCache()
+{
+  /* TODO(makowalski): decrement use count and/or delete the cached data? */
+}
+
+bool USDDataCache::add_prototype_mesh(const pxr::SdfPath path, Mesh *mesh)
+{
+  /* TODO(makowalsk): should we increment mesh use count?  */
+  return prototype_meshes_.insert(std::make_pair(path, mesh)).second;
+}
+
+void USDDataCache::clear_protype_mesh(const pxr::SdfPath &path)
+{
+  /* TODO(makowalsk): should we decrement mesh use count or delete mesh?  */
+  prototype_meshes_.erase(path);
+}
+
+Mesh *USDDataCache::get_prototype_mesh(const pxr::SdfPath &path) const
+{
+  std::map<pxr::SdfPath, Mesh *>::const_iterator it = prototype_meshes_.find(path);
+  if (it != prototype_meshes_.end()) {
+    return it->second;
+  }
+
+  return nullptr;
+}
+
+}  // namespace blender::io::usd