X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fmisc.c;h=d0bc9fa9401067173c21224ceedbb687af35015d;hb=4fcf5c6436d34bdc44bc534d21d9ec95bf072333;hp=8bc69396cb464a0ad20b666dbced14501277c85e;hpb=463778af29aada177d4a00c566653b92be3b507a;p=rocksndiamonds.git

diff --git a/src/libgame/misc.c b/src/libgame/misc.c
index 8bc69396..d0bc9fa9 100644
--- a/src/libgame/misc.c
+++ b/src/libgame/misc.c
@@ -29,6 +29,7 @@
 #include "misc.h"
 #include "setup.h"
 #include "random.h"
+#include "text.h"
 
 
 #if defined(PLATFORM_MSDOS)
@@ -402,6 +403,14 @@ char *getPath3(char *path1, char *path2, char *path3)
   return complete_path;
 }
 
+static char *getStringCat2(char *s1, char *s2)
+{
+  char *complete_string = checked_malloc(strlen(s1) + strlen(s2) + 1);
+
+  sprintf(complete_string, "%s%s", s1, s2);
+  return complete_string;
+}
+
 char *getStringCopy(char *s)
 {
   char *s_copy;
@@ -427,6 +436,35 @@ char *getStringToLower(char *s)
   return s_copy;
 }
 
+static void printUsage()
+{
+  printf("\n"
+	 "Usage: %s [OPTION]... [HOSTNAME [PORT]]\n"
+	 "\n"
+	 "Options:\n"
+	 "  -d, --display HOSTNAME[:SCREEN]  specify X server display\n"
+	 "  -b, --basepath DIRECTORY         alternative base DIRECTORY\n"
+	 "  -l, --level DIRECTORY            alternative level DIRECTORY\n"
+	 "  -g, --graphics DIRECTORY         alternative graphics DIRECTORY\n"
+	 "  -s, --sounds DIRECTORY           alternative sounds DIRECTORY\n"
+	 "  -m, --music DIRECTORY            alternative music DIRECTORY\n"
+	 "  -n, --network                    network multiplayer game\n"
+	 "      --serveronly                 only start network server\n"
+	 "  -v, --verbose                    verbose mode\n"
+	 "      --debug                      display debugging information\n"
+	 "  -e, --execute COMMAND            execute batch COMMAND:\n"
+	 "\n"
+	 "Valid commands for '--execute' option:\n"
+	 "  \"print graphicsinfo.conf\"        print default graphics config\n"
+	 "  \"print soundsinfo.conf\"          print default sounds config\n"
+	 "  \"print musicinfo.conf\"           print default music config\n"
+	 "  \"dump level FILE\"                dump level data from FILE\n"
+	 "  \"dump tape FILE\"                 dump tape data from FILE\n"
+	 "  \"autoplay LEVELDIR\"              play level tapes for LEVELDIR\n"
+	 "\n",
+	 program.command_basename);
+}
+
 void GetOptions(char *argv[])
 {
   char **options_left = &argv[1];
@@ -441,11 +479,11 @@ void GetOptions(char *argv[])
   options.graphics_directory = RO_BASE_PATH "/" GRAPHICS_DIRECTORY;
   options.sounds_directory = RO_BASE_PATH "/" SOUNDS_DIRECTORY;
   options.music_directory = RO_BASE_PATH "/" MUSIC_DIRECTORY;
+  options.execute_command = NULL;
   options.serveronly = FALSE;
   options.network = FALSE;
   options.verbose = FALSE;
   options.debug = FALSE;
-  options.debug_command = NULL;
 
   while (*options_left)
   {
@@ -483,22 +521,7 @@ void GetOptions(char *argv[])
       Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
     else if (strncmp(option, "-help", option_len) == 0)
     {
-      printf("Usage: %s [options] [<server host> [<server port>]]\n"
-	     "Options:\n"
-	     "  -d, --display <host>[:<scr>]  X server display\n"
-	     "  -b, --basepath <directory>    alternative base directory\n"
-	     "  -l, --level <directory>       alternative level directory\n"
-	     "  -g, --graphics <directory>    alternative graphics directory\n"
-	     "  -s, --sounds <directory>      alternative sounds directory\n"
-	     "  -m, --music <directory>       alternative music directory\n"
-	     "  -n, --network                 network multiplayer game\n"
-	     "      --serveronly              only start network server\n"
-	     "  -v, --verbose                 verbose mode\n"
-	     "      --debug                   display debugging information\n",
-	     program.command_basename);
-
-      if (options.debug)
-	printf("      --debug-command <command> execute special command\n");
+      printUsage();
 
       exit(0);
     }
@@ -578,12 +601,12 @@ void GetOptions(char *argv[])
     {
       options.debug = TRUE;
     }
-    else if (strncmp(option, "-debug-command", option_len) == 0)
+    else if (strncmp(option, "-execute", option_len) == 0)
     {
       if (option_arg == NULL)
 	Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
 
-      options.debug_command = option_arg;
+      options.execute_command = option_arg;
       if (option_arg == next_option)
 	options_left++;
     }
@@ -1212,6 +1235,143 @@ char getCharFromKey(Key key)
 }
 
 
+/* ------------------------------------------------------------------------- */
+/* functions to translate string identifiers to integer or boolean value     */
+/* ------------------------------------------------------------------------- */
+
+int get_integer_from_string(char *s)
+{
+  static char *number_text[][3] =
+  {
+    { "0", "zero", "null", },
+    { "1", "one", "first" },
+    { "2", "two", "second" },
+    { "3", "three", "third" },
+    { "4", "four", "fourth" },
+    { "5", "five", "fifth" },
+    { "6", "six", "sixth" },
+    { "7", "seven", "seventh" },
+    { "8", "eight", "eighth" },
+    { "9", "nine", "ninth" },
+    { "10", "ten", "tenth" },
+    { "11", "eleven", "eleventh" },
+    { "12", "twelve", "twelfth" },
+  };
+
+  int i, j;
+  char *s_lower = getStringToLower(s);
+  int result = -1;
+
+  for (i=0; i<13; i++)
+    for (j=0; j<3; j++)
+      if (strcmp(s_lower, number_text[i][j]) == 0)
+	result = i;
+
+  if (result == -1)
+    result = atoi(s);
+
+  free(s_lower);
+
+  return result;
+}
+
+boolean get_boolean_from_string(char *s)
+{
+  char *s_lower = getStringToLower(s);
+  boolean result = FALSE;
+
+  if (strcmp(s_lower, "true") == 0 ||
+      strcmp(s_lower, "yes") == 0 ||
+      strcmp(s_lower, "on") == 0 ||
+      get_integer_from_string(s) == 1)
+    result = TRUE;
+
+  free(s_lower);
+
+  return result;
+}
+
+
+/* ========================================================================= */
+/* functions for generic lists                                               */
+/* ========================================================================= */
+
+ListNode *newListNode()
+{
+  return checked_calloc(sizeof(ListNode));
+}
+
+void addNodeToList(ListNode **node_first, char *key, void *content)
+{
+  ListNode *node_new = newListNode();
+
+#if 0
+  printf("LIST: adding node with key '%s'\n", key);
+#endif
+
+  node_new->key = getStringCopy(key);
+  node_new->content = content;
+  node_new->next = *node_first;
+  *node_first = node_new;
+}
+
+void deleteNodeFromList(ListNode **node_first, char *key,
+			void (*destructor_function)(void *))
+{
+  if (node_first == NULL || *node_first == NULL)
+    return;
+
+#if 0
+  printf("[CHECKING LIST KEY '%s' == '%s']\n",
+	 (*node_first)->key, key);
+#endif
+
+  if (strcmp((*node_first)->key, key) == 0)
+  {
+#if 0
+    printf("[DELETING LIST ENTRY]\n");
+#endif
+
+    free((*node_first)->key);
+    if (destructor_function)
+      destructor_function((*node_first)->content);
+    *node_first = (*node_first)->next;
+  }
+  else
+    deleteNodeFromList(&(*node_first)->next, key, destructor_function);
+}
+
+ListNode *getNodeFromKey(ListNode *node_first, char *key)
+{
+  if (node_first == NULL)
+    return NULL;
+
+  if (strcmp(node_first->key, key) == 0)
+    return node_first;
+  else
+    return getNodeFromKey(node_first->next, key);
+}
+
+int getNumNodes(ListNode *node_first)
+{
+  return (node_first ? 1 + getNumNodes(node_first->next) : 0);
+}
+
+void dumpList(ListNode *node_first)
+{
+  ListNode *node = node_first;
+
+  while (node)
+  {
+    printf("['%s' (%d)]\n", node->key,
+	   ((struct ListNodeInfo *)node->content)->num_references);
+    node = node->next;
+  }
+
+  printf("[%d nodes]\n", getNumNodes(node_first));
+}
+
+
 /* ========================================================================= */
 /* functions for checking filenames                                          */
 /* ========================================================================= */
@@ -1263,6 +1423,535 @@ boolean FileIsArtworkType(char *basename, int type)
   return FALSE;
 }
 
+/* ========================================================================= */
+/* functions for loading artwork configuration information                   */
+/* ========================================================================= */
+
+static int get_parameter_value(int type, char *value)
+{
+  return (type == TYPE_INTEGER ? get_integer_from_string(value) :
+	  type == TYPE_BOOLEAN ? get_boolean_from_string(value) :
+	  -1);
+}
+
+struct FileInfo *getFileListFromConfigList(struct ConfigInfo *config_list,
+					   struct ConfigInfo *suffix_list,
+					   int num_file_list_entries)
+{
+  struct FileInfo *file_list;
+  int num_file_list_entries_found = 0;
+  int num_suffix_list_entries = 0;
+  int list_pos = 0;
+  int i, j;
+
+  file_list = checked_calloc(num_file_list_entries * sizeof(struct FileInfo));
+
+  for (i=0; suffix_list[i].token != NULL; i++)
+    num_suffix_list_entries++;
+
+  /* always start with reliable default values */
+  for (i=0; i<num_file_list_entries; i++)
+  {
+    file_list[i].token = NULL;
+    file_list[i].default_filename = NULL;
+    file_list[i].filename = NULL;
+
+    if (num_suffix_list_entries > 0)
+    {
+      int parameter_array_size = num_suffix_list_entries * sizeof(int);
+
+      file_list[i].default_parameter = checked_calloc(parameter_array_size);
+      file_list[i].parameter = checked_calloc(parameter_array_size);
+
+      for (j=0; j<num_suffix_list_entries; j++)
+      {
+	int default_parameter =
+	  get_parameter_value(suffix_list[j].type, suffix_list[j].value);
+
+	file_list[i].default_parameter[j] = default_parameter;
+	file_list[i].parameter[j] = default_parameter;
+      }
+    }
+  }
+
+  for (i=0; config_list[i].token != NULL; i++)
+  {
+    int len_config_token = strlen(config_list[i].token);
+    int len_config_value = strlen(config_list[i].value);
+    boolean is_file_entry = TRUE;
+
+    for (j=0; suffix_list[j].token != NULL; j++)
+    {
+      int len_suffix = strlen(suffix_list[j].token);
+
+      if (len_suffix < len_config_token &&
+	  strcmp(&config_list[i].token[len_config_token - len_suffix],
+		 suffix_list[j].token) == 0)
+      {
+	file_list[list_pos].default_parameter[j] =
+	  get_parameter_value(suffix_list[j].type, config_list[i].value);
+
+	is_file_entry = FALSE;
+	break;
+      }
+    }
+
+    if (is_file_entry)
+    {
+      if (i > 0)
+	list_pos++;
+
+      if (list_pos >= num_file_list_entries)
+	break;
+
+      /* simple sanity check if this is really a file definition */
+      if (strcmp(&config_list[i].value[len_config_value - 4], ".pcx") != 0 &&
+	  strcmp(&config_list[i].value[len_config_value - 4], ".wav") != 0 &&
+	  strcmp(config_list[i].value, UNDEFINED_FILENAME) != 0)
+      {
+	Error(ERR_RETURN, "Configuration directive '%s' -> '%s':",
+	      config_list[i].token, config_list[i].value);
+	Error(ERR_EXIT, "This seems to be no valid definition -- please fix");
+      }
+
+      file_list[list_pos].token = config_list[i].token;
+      file_list[list_pos].default_filename = config_list[i].value;
+    }
+  }
+
+  num_file_list_entries_found = list_pos + 1;
+  if (num_file_list_entries_found != num_file_list_entries)
+  {
+    Error(ERR_RETURN, "inconsistant config list information:");
+    Error(ERR_RETURN, "- should be:   %d (according to 'src/conf_gfx.h')",
+	  num_file_list_entries);
+    Error(ERR_RETURN, "- found to be: %d (according to 'src/conf_gfx.c')",
+	  num_file_list_entries_found);
+    Error(ERR_EXIT,   "please fix");
+  }
+
+  return file_list;
+}
+
+#if 0
+static void CheckArtworkConfig(struct ArtworkListInfo *artwork_info)
+{
+  struct FileInfo *file_list = artwork_info->file_list;
+  struct ConfigInfo *suffix_list = artwork_info->suffix_list;
+  int num_file_list_entries = artwork_info->num_file_list_entries;
+  int num_suffix_list_entries = artwork_info->num_suffix_list_entries;
+  char *filename = getCustomArtworkConfigFilename(artwork_info->type);
+  struct SetupFileList *setup_file_list;
+  char *known_token_value = "[KNOWN_TOKEN]";
+  int i, j;
+
+  if (!options.verbose)
+    return;
+
+  if (filename == NULL)
+    return;
+
+  if ((setup_file_list = loadSetupFileList(filename)) == NULL)
+    return;
+
+  for (i=0; i<num_file_list_entries; i++)
+  {
+    /* check for config token that is the base token without any suffixes */
+    if (getTokenValue(setup_file_list, file_list[i].token) != NULL)
+    {
+      /* mark token as well known from default config */
+      setTokenValue(setup_file_list, file_list[i].token, known_token_value);
+    }
+
+    /* check for config tokens that can be build by base token and suffixes */
+    for (j=0; j<num_suffix_list_entries; j++)
+    {
+      char *token = getStringCat2(file_list[i].token, suffix_list[j].token);
+
+      if (getTokenValue(setup_file_list, token) != NULL)
+      {
+	/* mark token as well known from default config */
+	setTokenValue(setup_file_list, token, known_token_value);
+      }
+
+      free(token);
+    }
+  }
+
+  /* set some additional tokens to "known" */
+  setTokenValue(setup_file_list, "name", known_token_value);
+  setTokenValue(setup_file_list, "sort_priority", known_token_value);
+
+  /* check for each token in config file if it is defined in default config */
+  while (setup_file_list != NULL)
+  {
+    if (strcmp(setup_file_list->value, known_token_value) != 0)
+    {
+      Error(ERR_RETURN, "custom artwork configuration warning:");
+      Error(ERR_RETURN, "- config file: '%s'", filename);
+      Error(ERR_RETURN, "- config token: '%s'", setup_file_list->token);
+      Error(ERR_WARN, "token not recognized");
+    }
+
+    setup_file_list = setup_file_list->next;
+  }
+
+  freeSetupFileList(setup_file_list);
+}
+#endif
+
+static void LoadArtworkConfig(struct ArtworkListInfo *artwork_info)
+{
+  struct FileInfo *file_list = artwork_info->file_list;
+  struct ConfigInfo *suffix_list = artwork_info->suffix_list;
+  int num_file_list_entries = artwork_info->num_file_list_entries;
+  int num_suffix_list_entries = artwork_info->num_suffix_list_entries;
+  char *filename = getCustomArtworkConfigFilename(artwork_info->type);
+  struct SetupFileList *setup_file_list;
+  char *known_token_value = "[KNOWN_TOKEN]";
+  int i, j;
+
+#if 0
+  printf("GOT CUSTOM ARTWORK CONFIG FILE '%s'\n", filename);
+#endif
+
+  /* always start with reliable default values */
+  for (i=0; i<num_file_list_entries; i++)
+  {
+    if (file_list[i].filename != NULL)
+      free(file_list[i].filename);
+    file_list[i].filename = NULL;
+
+    for (j=0; j<num_suffix_list_entries; j++)
+      file_list[i].parameter[j] = file_list[i].default_parameter[j];
+  }
+
+  if (filename == NULL)
+    return;
+
+  if ((setup_file_list = loadSetupFileList(filename)) == NULL)
+    return;
+
+  for (i=0; i<num_file_list_entries; i++)
+  {
+    /* check for config token that is the base token without any suffixes */
+    char *filename = getTokenValue(setup_file_list, file_list[i].token);
+
+    if (filename != NULL)
+    {
+      for (j=0; j<num_suffix_list_entries; j++)
+	file_list[i].parameter[j] =
+	  get_parameter_value(suffix_list[j].type, suffix_list[j].value);
+
+      file_list[i].filename = getStringCopy(filename);
+
+      /* mark token as well known from default config */
+      setTokenValue(setup_file_list, file_list[i].token, known_token_value);
+    }
+    else
+      file_list[i].filename = getStringCopy(file_list[i].default_filename);
+
+    /* check for config tokens that can be build by base token and suffixes */
+    for (j=0; j<num_suffix_list_entries; j++)
+    {
+      char *token = getStringCat2(file_list[i].token, suffix_list[j].token);
+      char *value = getTokenValue(setup_file_list, token);
+
+      if (value != NULL)
+      {
+	file_list[i].parameter[j] =
+	  get_parameter_value(suffix_list[j].type, value);
+
+	/* mark token as well known from default config */
+	setTokenValue(setup_file_list, token, known_token_value);
+      }
+
+      free(token);
+    }
+  }
+
+  /* set some additional tokens to "known" */
+  setTokenValue(setup_file_list, "name", known_token_value);
+  setTokenValue(setup_file_list, "sort_priority", known_token_value);
+
+  if (options.verbose)
+  {
+    /* check each token in config file if it is defined in default config */
+    while (setup_file_list != NULL)
+    {
+      if (strcmp(setup_file_list->value, known_token_value) != 0)
+      {
+	Error(ERR_RETURN, "custom artwork configuration warning:");
+	Error(ERR_RETURN, "- config file: '%s'", filename);
+	Error(ERR_RETURN, "- config token: '%s'", setup_file_list->token);
+	Error(ERR_WARN, "token not recognized");
+      }
+
+      setup_file_list = setup_file_list->next;
+    }
+  }
+
+  freeSetupFileList(setup_file_list);
+
+#if 0
+  for (i=0; i<num_file_list_entries; i++)
+  {
+    printf("'%s' ", file_list[i].token);
+    if (file_list[i].filename)
+      printf("-> '%s'\n", file_list[i].filename);
+    else
+      printf("-> UNDEFINED [-> '%s']\n", file_list[i].default_filename);
+  }
+#endif
+}
+
+static void deleteArtworkListEntry(struct ArtworkListInfo *artwork_info,
+				   struct ListNodeInfo **listnode)
+{
+  if (*listnode)
+  {
+    char *filename = (*listnode)->source_filename;
+
+#if 0
+    printf("[decrementing reference counter of artwork '%s']\n", filename);
+#endif
+
+    if (--(*listnode)->num_references <= 0)
+    {
+#if 0
+      printf("[deleting artwork '%s']\n", filename);
+#endif
+
+      deleteNodeFromList(&artwork_info->content_list, filename,
+			 artwork_info->free_artwork);
+    }
+
+    *listnode = NULL;
+  }
+}
+
+static void replaceArtworkListEntry(struct ArtworkListInfo *artwork_info,
+				    struct ListNodeInfo **listnode,
+				    char *basename)
+{
+  char *init_text[] =
+  { "",
+    "Loading graphics:",
+    "Loading sounds:",
+    "Loading music:"
+  };
+
+  ListNode *node;
+  char *filename = getCustomArtworkFilename(basename, artwork_info->type);
+
+  if (filename == NULL)
+  {
+    int error_mode = ERR_WARN;
+
+    /* we can get away without sounds and music, but not without graphics */
+    if (*listnode == NULL && artwork_info->type == ARTWORK_TYPE_GRAPHICS)
+      error_mode = ERR_EXIT;
+
+    Error(error_mode, "cannot find artwork file '%s'", basename);
+    return;
+  }
+
+  /* check if the old and the new artwork file are the same */
+  if (*listnode && strcmp((*listnode)->source_filename, filename) == 0)
+  {
+    /* The old and new artwork are the same (have the same filename and path).
+       This usually means that this artwork does not exist in this artwork set
+       and a fallback to the existing artwork is done. */
+
+#if 0
+    printf("[artwork '%s' already exists (same list entry)]\n", filename);
+#endif
+
+    return;
+  }
+
+  /* delete existing artwork file entry */
+  deleteArtworkListEntry(artwork_info, listnode);
+
+  /* check if the new artwork file already exists in the list of artworks */
+  if ((node = getNodeFromKey(artwork_info->content_list, filename)) != NULL)
+  {
+#if 0
+      printf("[artwork '%s' already exists (other list entry)]\n", filename);
+#endif
+
+      *listnode = (struct ListNodeInfo *)node->content;
+      (*listnode)->num_references++;
+
+      return;
+  }
+
+  DrawInitText(init_text[artwork_info->type], 120, FC_GREEN);
+  DrawInitText(basename, 150, FC_YELLOW);
+
+  if ((*listnode = artwork_info->load_artwork(filename)) != NULL)
+  {
+#if 0
+      printf("[adding new artwork '%s']\n", filename);
+#endif
+
+    (*listnode)->num_references = 1;
+    addNodeToList(&artwork_info->content_list, (*listnode)->source_filename,
+		  *listnode);
+  }
+  else
+  {
+    int error_mode = ERR_WARN;
+
+    /* we can get away without sounds and music, but not without graphics */
+    if (artwork_info->type == ARTWORK_TYPE_GRAPHICS)
+      error_mode = ERR_EXIT;
+
+    Error(error_mode, "cannot load artwork file '%s'", basename);
+    return;
+  }
+}
+
+static void LoadCustomArtwork(struct ArtworkListInfo *artwork_info,
+			      struct ListNodeInfo **listnode,
+			      char *basename)
+{
+#if 0
+  char *filename = getCustomArtworkFilename(basename, artwork_info->type);
+#endif
+
+#if 0
+  printf("GOT CUSTOM ARTWORK FILE '%s'\n", filename);
+#endif
+
+  if (strcmp(basename, UNDEFINED_FILENAME) == 0)
+  {
+    deleteArtworkListEntry(artwork_info, listnode);
+    return;
+  }
+
+#if 0
+  if (filename == NULL)
+  {
+    Error(ERR_WARN, "cannot find artwork file '%s'", basename);
+    return;
+  }
+
+  replaceArtworkListEntry(artwork_info, listnode, filename);
+#else
+  replaceArtworkListEntry(artwork_info, listnode, basename);
+#endif
+}
+
+static void LoadArtworkToList(struct ArtworkListInfo *artwork_info,
+			      char *basename, int list_pos)
+{
+  if (artwork_info->artwork_list == NULL ||
+      list_pos >= artwork_info->num_file_list_entries)
+    return;
+
+#if 0
+  printf("loading artwork '%s' ...  [%d]\n",
+	 basename, getNumNodes(artwork_info->content_list));
+#endif
+
+  LoadCustomArtwork(artwork_info, &artwork_info->artwork_list[list_pos],
+		    basename);
+
+#if 0
+  printf("loading artwork '%s' done [%d]\n",
+	 basename, getNumNodes(artwork_info->content_list));
+#endif
+}
+
+void ReloadCustomArtworkList(struct ArtworkListInfo *artwork_info)
+{
+#if 0
+  static struct
+  {
+    char *text;
+    boolean do_it;
+  }
+  draw_init[] =
+  {
+    { "",			FALSE },
+    { "Loading graphics:",	TRUE },
+    { "Loading sounds:",	TRUE },
+    { "Loading music:",		TRUE }
+  };
+#endif
+
+  int num_file_list_entries = artwork_info->num_file_list_entries;
+  struct FileInfo *file_list = artwork_info->file_list;
+  int i;
+
+#if 0
+  CheckArtworkConfig(artwork_info);
+#endif
+  LoadArtworkConfig(artwork_info);
+
+#if 0
+  if (draw_init[artwork_info->type].do_it)
+    DrawInitText(draw_init[artwork_info->type].text, 120, FC_GREEN);
+#endif
+
+#if 0
+  printf("DEBUG: reloading %d artwork files ...\n", num_file_list_entries);
+#endif
+
+  for(i=0; i<num_file_list_entries; i++)
+  {
+#if 0
+    if (draw_init[artwork_info->type].do_it)
+      DrawInitText(file_list[i].token, 150, FC_YELLOW);
+#endif
+
+    LoadArtworkToList(artwork_info, file_list[i].filename, i);
+
+#if 0
+    printf("DEBUG:   loading artwork file '%s'...\n", file_list[i].filename);
+#endif
+  }
+
+#if 0
+  draw_init[artwork_info->type].do_it = FALSE;
+#endif
+
+  /*
+  printf("list size == %d\n", getNumNodes(artwork_info->content_list));
+  */
+
+#if 0
+  dumpList(artwork_info->content_list);
+#endif
+}
+
+void FreeCustomArtworkList(struct ArtworkListInfo *artwork_info)
+{
+  int i;
+
+  if (artwork_info == NULL || artwork_info->artwork_list == NULL)
+    return;
+
+#if 0
+  printf("%s: FREEING ARTWORK ...\n",
+	 IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT");
+#endif
+
+  for(i=0; i<artwork_info->num_file_list_entries; i++)
+    deleteArtworkListEntry(artwork_info, &artwork_info->artwork_list[i]);
+
+#if 0
+  printf("%s: FREEING ARTWORK -- DONE\n",
+	 IS_CHILD_PROCESS(audio.mixer_pid) ? "CHILD" : "PARENT");
+#endif
+
+  free(artwork_info->artwork_list);
+
+  artwork_info->artwork_list = NULL;
+  artwork_info->num_file_list_entries = 0;
+}
+
 
 /* ========================================================================= */
 /* functions only needed for non-Unix (non-command-line) systems             */
@@ -1298,6 +1987,21 @@ void dumpErrorFile()
 #endif
 
 
+/* ========================================================================= */
+/* some generic helper functions                                             */
+/* ========================================================================= */
+
+void printf_line(char line_char, int line_length)
+{
+  int i;
+
+  for (i=0; i<line_length; i++)
+    printf("%c", line_char);
+
+  printf("\n");
+}
+
+
 /* ========================================================================= */
 /* the following is only for debugging purpose and normally not used         */
 /* ========================================================================= */