1 files changed, 64 insertions, 0 deletions
diff --git a/memory.h b/memory.h
new file mode 100644
index 0000000..47c737e
--- /dev/null
+++ b/memory.h
@@ -0,0 +1,64 @@
+enum memory_table_list {
+
+    P_AVInfo,
+    P_UndoBuffer,
+    P_MiscCache,
+
+    F_File,
+    F_Precomps,
+    F_Layers,
+    F_Sources,
+    F_Properties,
+    F_Keyframes,
+    F_Effects,
+    F_Nodes,
+    F_Strings,
+
+    B_CachedBitmaps,
+};
+
+struct memory_table {
+    char *Name;
+    void *Address;
+    uint64 Size;
+    uint32 Block_ElementSize;
+};
+
+struct global_memory {
+    void *Address;
+    uint64 CurrentPosition;
+    uint64 Size;
+};
+
+enum history_action_type {
+    action_type_swap,
+    action_type_shift
+};
+
+struct history_action {
+    memory_table_list TableName;
+    history_action_type Type;
+    uint64 Size;
+    uint64 ByteOffset;
+    uint64 ShiftAmount;         // Only for type_shift
+    int16 Direction;            // Only for type_shift
+};
+
+struct history_entry {
+    char *Name;
+    uint16 NumberOfActions;
+};
+
+struct history_entry_list {
+    history_entry Entry[256];
+    history_action Action[1024];
+    uint16 NumberOfEntries;
+    uint16 EntryPlayhead;
+};
+
+struct memory {
+    memory_table Slot[16];
+    history_entry_list History;
+    bool32 IsFileSaved;
+};
+