+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 */
+/* ------------------------------------------------------------------------- */
+
+boolean FileIsGraphic(char *filename)
+{
+ if (strlen(filename) > 4 &&
+ strcmp(&filename[strlen(filename) - 4], ".pcx") == 0)
+ return TRUE;
+
+ return FALSE;
+}
+
+boolean FileIsSound(char *basename)
+{
+ if (strlen(basename) > 4 &&
+ strcmp(&basename[strlen(basename) - 4], ".wav") == 0)
+ return TRUE;
+
+ return FALSE;
+}
+
+boolean FileIsMusic(char *basename)
+{
+ /* "music" can be a WAV (loop) file or (if compiled with SDL) a MOD file */
+
+ if (FileIsSound(basename))
+ return TRUE;
+
+#if defined(TARGET_SDL)
+ if (strlen(basename) > 4 &&
+ (strcmp(&basename[strlen(basename) - 4], ".mod") == 0 ||
+ strcmp(&basename[strlen(basename) - 4], ".MOD") == 0 ||
+ strncmp(basename, "mod.", 4) == 0 ||
+ strncmp(basename, "MOD.", 4) == 0))
+ return TRUE;
+#endif
+
+ return FALSE;
+}
+
+boolean FileIsArtworkType(char *basename, int type)
+{
+ if ((type == TREE_TYPE_GRAPHICS_DIR && FileIsGraphic(basename)) ||
+ (type == TREE_TYPE_SOUNDS_DIR && FileIsSound(basename)) ||
+ (type == TREE_TYPE_MUSIC_DIR && FileIsMusic(basename)))
+ return TRUE;
+
+ return FALSE;
+}
+
+/* ------------------------------------------------------------------------- */
+/* functions for loading artwork configuration information */
+/* ------------------------------------------------------------------------- */
+
+static int get_parameter_value(int type, char *value)
+{
+ return (strcmp(value, ARG_UNDEFINED) == 0 ? ARG_UNDEFINED_VALUE :
+ 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;
+}
+
+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 && !IS_CHILD_PROCESS(audio.mixer_pid))
+ {
+ boolean unknown_tokens_found = FALSE;
+
+ /* 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)
+ {
+ if (!unknown_tokens_found)
+ {
+ Error(ERR_RETURN_LINE, "-");
+ Error(ERR_RETURN, "warning: unknown token(s) found in config file:");
+ Error(ERR_RETURN, "- config file: '%s'", filename);
+
+ unknown_tokens_found = TRUE;
+ }
+
+ Error(ERR_RETURN, "- unknown token: '%s'", setup_file_list->token);
+ }
+
+ setup_file_list = setup_file_list->next;
+ }
+
+ if (unknown_tokens_found)
+ Error(ERR_RETURN_LINE, "-");
+ }
+
+ 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)