1 files changed, 90 insertions, 0 deletions
diff --git a/thirdparty/thorvg/src/common/tvgList.h b/thirdparty/thorvg/src/common/tvgList.h
new file mode 100644
index 0000000000..01e87a840f
--- /dev/null
+++ b/thirdparty/thorvg/src/common/tvgList.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2023 the ThorVG project. All rights reserved.
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _TVG_LIST_H_
+#define _TVG_LIST_H_
+
+namespace tvg {
+
+template<typename T>
+struct LinkedList
+{
+    T *head = nullptr;
+    T *tail = nullptr;
+
+    LinkedList() = default;
+    LinkedList(T *head, T *tail) : head(head), tail(tail)
+    {
+    }
+
+    template<T *T::*Prev, T *T::*Next>
+    static void insert(T *t, T *prev, T *next, T **head, T **tail)
+    {
+        t->*Prev = prev;
+        t->*Next = next;
+
+        if (prev) {
+            prev->*Next = t;
+        } else if (head) {
+            *head = t;
+        }
+
+        if (next) {
+            next->*Prev = t;
+        } else if (tail) {
+            *tail = t;
+        }
+    }
+
+    template<T *T::*Prev, T *T::*Next>
+    static void remove(T *t, T **head, T **tail)
+    {
+        if (t->*Prev) {
+            t->*Prev->*Next = t->*Next;
+        } else if (head) {
+            *head = t->*Next;
+        }
+
+        if (t->*Next) {
+            t->*Next->*Prev = t->*Prev;
+        } else if (tail) {
+            *tail = t->*Prev;
+        }
+
+        t->*Prev = t->*Next = nullptr;
+    }
+
+    template <T* T::*Next>
+    static bool contains(T *t, T **head, T **tail) {
+        for (T *it = *head; it; it = it->*Next) {
+            if (it == t) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+};
+
+}
+
+#endif // _TVG_LIST_H_