src/libgame/snapshot.c

   1 /***********************************************************
   2 * Artsoft Retro-Game Library                               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2006 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * snapshot.c                                               *
  12 ***********************************************************/
  13
  14 #include "snapshot.h"
  15
  16
  17 static ListNode *engine_snapshot_list = NULL;
  18
  19 void SaveEngineSnapshotBuffer(void *buffer, int size)
  20 {
  21   struct EngineSnapshotNodeInfo *bi =
  22     checked_calloc(sizeof(struct EngineSnapshotNodeInfo));
  23
  24   bi->buffer_orig = buffer;
  25   bi->buffer_copy = checked_malloc(size);
  26   bi->size = size;
  27
  28   memcpy(bi->buffer_copy, buffer, size);
  29
  30   addNodeToList(&engine_snapshot_list, NULL, bi);
  31 }
  32
  33 static void LoadEngineSnapshotBuffer(struct EngineSnapshotNodeInfo *bi)
  34 {
  35   memcpy(bi->buffer_orig, bi->buffer_copy, bi->size);
  36 }
  37
  38 void LoadEngineSnapshotBuffers()
  39 {
  40   ListNode *node = engine_snapshot_list;
  41
  42   while (node != NULL)
  43   {
  44     LoadEngineSnapshotBuffer((struct EngineSnapshotNodeInfo *)node->content);
  45
  46     node = node->next;
  47   }
  48 }
  49
  50 void FreeEngineSnapshotBuffers()
  51 {
  52   while (engine_snapshot_list != NULL)
  53     deleteNodeFromList(&engine_snapshot_list, engine_snapshot_list->key,
  54                        checked_free);
  55 }