src/libgame/snapshot.c

   1 // ============================================================================
   2 // Artsoft Retro-Game Library
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  http://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // snapshot.c
  10 // ============================================================================
  11
  12 #include "snapshot.h"
  13
  14
  15 static ListNode *engine_snapshot_list = NULL;
  16
  17 void SaveEngineSnapshotBuffer(void *buffer, int size)
  18 {
  19   struct EngineSnapshotNodeInfo *bi =
  20     checked_calloc(sizeof(struct EngineSnapshotNodeInfo));
  21
  22   bi->buffer_orig = buffer;
  23   bi->buffer_copy = checked_malloc(size);
  24   bi->size = size;
  25
  26   memcpy(bi->buffer_copy, buffer, size);
  27
  28   addNodeToList(&engine_snapshot_list, NULL, bi);
  29 }
  30
  31 static void LoadEngineSnapshotBuffer(struct EngineSnapshotNodeInfo *bi)
  32 {
  33   memcpy(bi->buffer_orig, bi->buffer_copy, bi->size);
  34 }
  35
  36 void LoadEngineSnapshotBuffers()
  37 {
  38   ListNode *node = engine_snapshot_list;
  39
  40   while (node != NULL)
  41   {
  42     LoadEngineSnapshotBuffer((struct EngineSnapshotNodeInfo *)node->content);
  43
  44     node = node->next;
  45   }
  46 }
  47
  48 void FreeEngineSnapshotBuffers()
  49 {
  50   while (engine_snapshot_list != NULL)
  51     deleteNodeFromList(&engine_snapshot_list, engine_snapshot_list->key,
  52                        checked_free);
  53 }