+ free(value);
+
+ return result;
+}
+
+int get_auto_parameter_value(char *token, char *value_raw)
+{
+ char *suffix;
+
+ if (token == NULL || value_raw == NULL)
+ return ARG_UNDEFINED_VALUE;
+
+ suffix = strrchr(token, '.');
+ if (suffix == NULL)
+ suffix = token;
+
+ return get_parameter_value(value_raw, suffix, TYPE_INTEGER);
+}
+
+struct ScreenModeInfo *get_screen_mode_from_string(char *screen_mode_string)
+{
+ static struct ScreenModeInfo screen_mode;
+ char *screen_mode_string_x = strchr(screen_mode_string, 'x');
+ char *screen_mode_string_copy;
+ char *screen_mode_string_pos_w;
+ char *screen_mode_string_pos_h;
+
+ if (screen_mode_string_x == NULL) /* invalid screen mode format */
+ return NULL;
+
+ screen_mode_string_copy = getStringCopy(screen_mode_string);
+
+ screen_mode_string_pos_w = screen_mode_string_copy;
+ screen_mode_string_pos_h = strchr(screen_mode_string_copy, 'x');
+ *screen_mode_string_pos_h++ = '\0';
+
+ screen_mode.width = atoi(screen_mode_string_pos_w);
+ screen_mode.height = atoi(screen_mode_string_pos_h);
+
+ return &screen_mode;
+}
+
+void get_aspect_ratio_from_screen_mode(struct ScreenModeInfo *screen_mode,
+ int *x, int *y)
+{
+ float aspect_ratio = (float)screen_mode->width / (float)screen_mode->height;
+ float aspect_ratio_new;
+ int i = 1;
+
+ do
+ {
+ *x = i * aspect_ratio + 0.000001;
+ *y = i;
+
+ aspect_ratio_new = (float)*x / (float)*y;
+
+ i++;
+ }
+ while (aspect_ratio_new != aspect_ratio && *y < screen_mode->height);
+}
+
+static void FreeCustomArtworkList(struct ArtworkListInfo *,
+ struct ListNodeInfo ***, int *);
+
+struct FileInfo *getFileListFromConfigList(struct ConfigInfo *config_list,
+ struct ConfigTypeInfo *suffix_list,
+ char **ignore_tokens,
+ 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;
+ 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(char *);
+
+ 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++)
+ {
+ setString(&file_list[i].default_parameter[j], suffix_list[j].value);
+ setString(&file_list[i].parameter[j], suffix_list[j].value);
+ }
+
+ file_list[i].redefined = FALSE;
+ file_list[i].fallback_to_default = FALSE;
+ }
+ }
+
+ list_pos = 0;
+ 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 &&
+ strEqual(&config_list[i].token[len_config_token - len_suffix],
+ suffix_list[j].token))
+ {
+ setString(&file_list[list_pos].default_parameter[j],
+ config_list[i].value);
+
+ is_file_entry = FALSE;
+ break;
+ }
+ }
+
+ /* the following tokens are no file definitions, but other config tokens */
+ for (j = 0; ignore_tokens[j] != NULL; j++)
+ if (strEqual(config_list[i].token, ignore_tokens[j]))
+ is_file_entry = FALSE;
+
+ 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 (!strEqual(&config_list[i].value[len_config_value - 4], ".pcx") &&
+ !strEqual(&config_list[i].value[len_config_value - 4], ".wav") &&
+ !strEqual(config_list[i].value, UNDEFINED_FILENAME))
+ {
+ 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_LINE, "-");
+ 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");
+ }