rnd-20100220-1-src

[rocksndiamonds.git] / src / libgame / snapshot.c

diff --git a/src/libgame/snapshot.c b/src/libgame/snapshot.c
new file mode 100644 (file)
index 0000000..d28ae34
--- /dev/null
+++ b/src/libgame/snapshot.c
@@ -0,0 +1,55 @@
+/***********************************************************
+* Artsoft Retro-Game Library                               *
+*----------------------------------------------------------*
+* (c) 1995-2006 Artsoft Entertainment                      *
+*               Holger Schemel                             *
+*               Detmolder Strasse 189                      *
+*               33604 Bielefeld                            *
+*               Germany                                    *
+*               e-mail: info@artsoft.org                   *
+*----------------------------------------------------------*
+* snapshot.c                                               *
+***********************************************************/
+
+#include "snapshot.h"
+
+
+static ListNode *engine_snapshot_list = NULL;
+
+void SaveEngineSnapshotBuffer(void *buffer, int size)
+{
+  struct EngineSnapshotNodeInfo *bi =
+    checked_calloc(sizeof(struct EngineSnapshotNodeInfo));
+
+  bi->buffer_orig = buffer;
+  bi->buffer_copy = checked_malloc(size);
+  bi->size = size;
+
+  memcpy(bi->buffer_copy, buffer, size);
+
+  addNodeToList(&engine_snapshot_list, NULL, bi);
+}
+
+static void LoadEngineSnapshotBuffer(struct EngineSnapshotNodeInfo *bi)
+{
+  memcpy(bi->buffer_orig, bi->buffer_copy, bi->size);
+}
+
+void LoadEngineSnapshotBuffers()
+{
+  ListNode *node = engine_snapshot_list;
+
+  while (node != NULL)
+  {
+    LoadEngineSnapshotBuffer((struct EngineSnapshotNodeInfo *)node->content);
+
+    node = node->next;
+  }
+}
+
+void FreeEngineSnapshotBuffers()
+{
+  while (engine_snapshot_list != NULL)
+    deleteNodeFromList(&engine_snapshot_list, engine_snapshot_list->key,
+                      checked_free);
+}