settings.cpp

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00001 /* $Id: settings.cpp 23609 2011-12-19 20:56:34Z truebrain $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00026 #include "stdafx.h"
00027 #include "currency.h"
00028 #include "screenshot.h"
00029 #include "network/network.h"
00030 #include "network/network_func.h"
00031 #include "settings_internal.h"
00032 #include "command_func.h"
00033 #include "console_func.h"
00034 #include "pathfinder/pathfinder_type.h"
00035 #include "genworld.h"
00036 #include "train.h"
00037 #include "news_func.h"
00038 #include "window_func.h"
00039 #include "sound_func.h"
00040 #include "company_func.h"
00041 #include "rev.h"
00042 #ifdef WITH_FREETYPE
00043 #include "fontcache.h"
00044 #endif
00045 #include "textbuf_gui.h"
00046 #include "rail_gui.h"
00047 #include "elrail_func.h"
00048 #include "error.h"
00049 #include "town.h"
00050 #include "video/video_driver.hpp"
00051 #include "sound/sound_driver.hpp"
00052 #include "music/music_driver.hpp"
00053 #include "blitter/factory.hpp"
00054 #include "base_media_base.h"
00055 #include "gamelog.h"
00056 #include "settings_func.h"
00057 #include "ini_type.h"
00058 #include "ai/ai_config.hpp"
00059 #include "ai/ai.hpp"
00060 #include "game/game_config.hpp"
00061 #include "game/game.hpp"
00062 #include "ship.h"
00063 #include "smallmap_gui.h"
00064 #include "roadveh.h"
00065 #include "fios.h"
00066 #include "strings_func.h"
00067 
00068 #include "void_map.h"
00069 #include "station_base.h"
00070 
00071 #include "table/strings.h"
00072 #include "table/settings.h"
00073 
00074 ClientSettings _settings_client;
00075 GameSettings _settings_game;     
00076 GameSettings _settings_newgame;  
00077 VehicleDefaultSettings _old_vds; 
00078 char *_config_file; 
00079 
00080 typedef void SettingDescProc(IniFile *ini, const SettingDesc *desc, const char *grpname, void *object);
00081 typedef void SettingDescProcList(IniFile *ini, const char *grpname, StringList *list);
00082 
00083 static bool IsSignedVarMemType(VarType vt);
00084 
00088 static const char * const _list_group_names[] = {
00089   "bans",
00090   "newgrf",
00091   "servers",
00092   "server_bind_addresses",
00093   NULL
00094 };
00095 
00103 static size_t LookupOneOfMany(const char *many, const char *one, size_t onelen = 0)
00104 {
00105   const char *s;
00106   size_t idx;
00107 
00108   if (onelen == 0) onelen = strlen(one);
00109 
00110   /* check if it's an integer */
00111   if (*one >= '0' && *one <= '9') return strtoul(one, NULL, 0);
00112 
00113   idx = 0;
00114   for (;;) {
00115     /* find end of item */
00116     s = many;
00117     while (*s != '|' && *s != 0) s++;
00118     if ((size_t)(s - many) == onelen && !memcmp(one, many, onelen)) return idx;
00119     if (*s == 0) return (size_t)-1;
00120     many = s + 1;
00121     idx++;
00122   }
00123 }
00124 
00132 static size_t LookupManyOfMany(const char *many, const char *str)
00133 {
00134   const char *s;
00135   size_t r;
00136   size_t res = 0;
00137 
00138   for (;;) {
00139     /* skip "whitespace" */
00140     while (*str == ' ' || *str == '\t' || *str == '|') str++;
00141     if (*str == 0) break;
00142 
00143     s = str;
00144     while (*s != 0 && *s != ' ' && *s != '\t' && *s != '|') s++;
00145 
00146     r = LookupOneOfMany(many, str, s - str);
00147     if (r == (size_t)-1) return r;
00148 
00149     SetBit(res, (uint8)r); // value found, set it
00150     if (*s == 0) break;
00151     str = s + 1;
00152   }
00153   return res;
00154 }
00155 
00164 static int ParseIntList(const char *p, int *items, int maxitems)
00165 {
00166   int n = 0; // number of items read so far
00167   bool comma = false; // do we accept comma?
00168 
00169   while (*p != '\0') {
00170     switch (*p) {
00171       case ',':
00172         /* Do not accept multiple commas between numbers */
00173         if (!comma) return -1;
00174         comma = false;
00175         /* FALL THROUGH */
00176       case ' ':
00177         p++;
00178         break;
00179 
00180       default: {
00181         if (n == maxitems) return -1; // we don't accept that many numbers
00182         char *end;
00183         long v = strtol(p, &end, 0);
00184         if (p == end) return -1; // invalid character (not a number)
00185         if (sizeof(int) < sizeof(long)) v = ClampToI32(v);
00186         items[n++] = v;
00187         p = end; // first non-number
00188         comma = true; // we accept comma now
00189         break;
00190       }
00191     }
00192   }
00193 
00194   /* If we have read comma but no number after it, fail.
00195    * We have read comma when (n != 0) and comma is not allowed */
00196   if (n != 0 && !comma) return -1;
00197 
00198   return n;
00199 }
00200 
00209 static bool LoadIntList(const char *str, void *array, int nelems, VarType type)
00210 {
00211   int items[64];
00212   int i, nitems;
00213 
00214   if (str == NULL) {
00215     memset(items, 0, sizeof(items));
00216     nitems = nelems;
00217   } else {
00218     nitems = ParseIntList(str, items, lengthof(items));
00219     if (nitems != nelems) return false;
00220   }
00221 
00222   switch (type) {
00223   case SLE_VAR_BL:
00224   case SLE_VAR_I8:
00225   case SLE_VAR_U8:
00226     for (i = 0; i != nitems; i++) ((byte*)array)[i] = items[i];
00227     break;
00228   case SLE_VAR_I16:
00229   case SLE_VAR_U16:
00230     for (i = 0; i != nitems; i++) ((uint16*)array)[i] = items[i];
00231     break;
00232   case SLE_VAR_I32:
00233   case SLE_VAR_U32:
00234     for (i = 0; i != nitems; i++) ((uint32*)array)[i] = items[i];
00235     break;
00236   default: NOT_REACHED();
00237   }
00238 
00239   return true;
00240 }
00241 
00251 static void MakeIntList(char *buf, const char *last, const void *array, int nelems, VarType type)
00252 {
00253   int i, v = 0;
00254   const byte *p = (const byte *)array;
00255 
00256   for (i = 0; i != nelems; i++) {
00257     switch (type) {
00258     case SLE_VAR_BL:
00259     case SLE_VAR_I8:  v = *(const   int8 *)p; p += 1; break;
00260     case SLE_VAR_U8:  v = *(const  uint8 *)p; p += 1; break;
00261     case SLE_VAR_I16: v = *(const  int16 *)p; p += 2; break;
00262     case SLE_VAR_U16: v = *(const uint16 *)p; p += 2; break;
00263     case SLE_VAR_I32: v = *(const  int32 *)p; p += 4; break;
00264     case SLE_VAR_U32: v = *(const uint32 *)p; p += 4; break;
00265     default: NOT_REACHED();
00266     }
00267     buf += seprintf(buf, last, (i == 0) ? "%d" : ",%d", v);
00268   }
00269 }
00270 
00278 static void MakeOneOfMany(char *buf, const char *last, const char *many, int id)
00279 {
00280   int orig_id = id;
00281 
00282   /* Look for the id'th element */
00283   while (--id >= 0) {
00284     for (; *many != '|'; many++) {
00285       if (*many == '\0') { // not found
00286         seprintf(buf, last, "%d", orig_id);
00287         return;
00288       }
00289     }
00290     many++; // pass the |-character
00291   }
00292 
00293   /* copy string until next item (|) or the end of the list if this is the last one */
00294   while (*many != '\0' && *many != '|' && buf < last) *buf++ = *many++;
00295   *buf = '\0';
00296 }
00297 
00306 static void MakeManyOfMany(char *buf, const char *last, const char *many, uint32 x)
00307 {
00308   const char *start;
00309   int i = 0;
00310   bool init = true;
00311 
00312   for (; x != 0; x >>= 1, i++) {
00313     start = many;
00314     while (*many != 0 && *many != '|') many++; // advance to the next element
00315 
00316     if (HasBit(x, 0)) { // item found, copy it
00317       if (!init) buf += seprintf(buf, last, "|");
00318       init = false;
00319       if (start == many) {
00320         buf += seprintf(buf, last, "%d", i);
00321       } else {
00322         memcpy(buf, start, many - start);
00323         buf += many - start;
00324       }
00325     }
00326 
00327     if (*many == '|') many++;
00328   }
00329 
00330   *buf = '\0';
00331 }
00332 
00339 static const void *StringToVal(const SettingDescBase *desc, const char *orig_str)
00340 {
00341   const char *str = orig_str == NULL ? "" : orig_str;
00342   switch (desc->cmd) {
00343   case SDT_NUMX: {
00344     char *end;
00345     size_t val = strtoul(str, &end, 0);
00346     if (*end != '\0') {
00347       SetDParamStr(0, desc->name);
00348       ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_TRAILING_CHARACTERS, WL_CRITICAL);
00349     }
00350     return (void*)val;
00351   }
00352   case SDT_ONEOFMANY: {
00353     size_t r = LookupOneOfMany(desc->many, str);
00354     /* if the first attempt of conversion from string to the appropriate value fails,
00355      * look if we have defined a converter from old value to new value. */
00356     if (r == (size_t)-1 && desc->proc_cnvt != NULL) r = desc->proc_cnvt(str);
00357     if (r != (size_t)-1) return (void*)r; // and here goes converted value
00358 
00359     SetDParamStr(0, str);
00360     SetDParamStr(1, desc->name);
00361     ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_INVALID_VALUE, WL_CRITICAL);
00362     return 0;
00363   }
00364   case SDT_MANYOFMANY: {
00365     size_t r = LookupManyOfMany(desc->many, str);
00366     if (r != (size_t)-1) return (void*)r;
00367     SetDParamStr(0, str);
00368     SetDParamStr(1, desc->name);
00369     ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_INVALID_VALUE, WL_CRITICAL);
00370     return NULL;
00371   }
00372   case SDT_BOOLX:
00373     if (strcmp(str, "true")  == 0 || strcmp(str, "on")  == 0 || strcmp(str, "1") == 0) return (void*)true;
00374     if (strcmp(str, "false") == 0 || strcmp(str, "off") == 0 || strcmp(str, "0") == 0) return (void*)false;
00375 
00376     SetDParamStr(0, str);
00377     SetDParamStr(1, desc->name);
00378     ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_INVALID_VALUE, WL_CRITICAL);
00379     break;
00380 
00381   case SDT_STRING: return orig_str;
00382   case SDT_INTLIST: return str;
00383   default: break;
00384   }
00385 
00386   return NULL;
00387 }
00388 
00398 static void Write_ValidateSetting(void *ptr, const SettingDesc *sd, int32 val)
00399 {
00400   const SettingDescBase *sdb = &sd->desc;
00401 
00402   if (sdb->cmd != SDT_BOOLX &&
00403       sdb->cmd != SDT_NUMX &&
00404       sdb->cmd != SDT_ONEOFMANY &&
00405       sdb->cmd != SDT_MANYOFMANY) {
00406     return;
00407   }
00408 
00409   /* We cannot know the maximum value of a bitset variable, so just have faith */
00410   if (sdb->cmd != SDT_MANYOFMANY) {
00411     /* We need to take special care of the uint32 type as we receive from the function
00412      * a signed integer. While here also bail out on 64-bit settings as those are not
00413      * supported. Unsigned 8 and 16-bit variables are safe since they fit into a signed
00414      * 32-bit variable
00415      * TODO: Support 64-bit settings/variables */
00416     switch (GetVarMemType(sd->save.conv)) {
00417       case SLE_VAR_NULL: return;
00418       case SLE_VAR_BL:
00419       case SLE_VAR_I8:
00420       case SLE_VAR_U8:
00421       case SLE_VAR_I16:
00422       case SLE_VAR_U16:
00423       case SLE_VAR_I32: {
00424         /* Override the minimum value. No value below sdb->min, except special value 0 */
00425         if (!(sdb->flags & SGF_0ISDISABLED) || val != 0) val = Clamp(val, sdb->min, sdb->max);
00426         break;
00427       }
00428       case SLE_VAR_U32: {
00429         /* Override the minimum value. No value below sdb->min, except special value 0 */
00430         uint min = ((sdb->flags & SGF_0ISDISABLED) && (uint)val <= (uint)sdb->min) ? 0 : sdb->min;
00431         WriteValue(ptr, SLE_VAR_U32, (int64)ClampU(val, min, sdb->max));
00432         return;
00433       }
00434       case SLE_VAR_I64:
00435       case SLE_VAR_U64:
00436       default: NOT_REACHED();
00437     }
00438   }
00439 
00440   WriteValue(ptr, sd->save.conv, (int64)val);
00441 }
00442 
00451 static void IniLoadSettings(IniFile *ini, const SettingDesc *sd, const char *grpname, void *object)
00452 {
00453   IniGroup *group;
00454   IniGroup *group_def = ini->GetGroup(grpname);
00455   IniItem *item;
00456   const void *p;
00457   void *ptr;
00458   const char *s;
00459 
00460   for (; sd->save.cmd != SL_END; sd++) {
00461     const SettingDescBase *sdb = &sd->desc;
00462     const SaveLoad        *sld = &sd->save;
00463 
00464     if (!SlIsObjectCurrentlyValid(sld->version_from, sld->version_to)) continue;
00465 
00466     /* For settings.xx.yy load the settings from [xx] yy = ? */
00467     s = strchr(sdb->name, '.');
00468     if (s != NULL) {
00469       group = ini->GetGroup(sdb->name, s - sdb->name);
00470       s++;
00471     } else {
00472       s = sdb->name;
00473       group = group_def;
00474     }
00475 
00476     item = group->GetItem(s, false);
00477     if (item == NULL && group != group_def) {
00478       /* For settings.xx.yy load the settings from [settingss] yy = ? in case the previous
00479        * did not exist (e.g. loading old config files with a [settings] section */
00480       item = group_def->GetItem(s, false);
00481     }
00482     if (item == NULL) {
00483       /* For settings.xx.zz.yy load the settings from [zz] yy = ? in case the previous
00484        * did not exist (e.g. loading old config files with a [yapf] section */
00485       const char *sc = strchr(s, '.');
00486       if (sc != NULL) item = ini->GetGroup(s, sc - s)->GetItem(sc + 1, false);
00487     }
00488 
00489     p = (item == NULL) ? sdb->def : StringToVal(sdb, item->value);
00490     ptr = GetVariableAddress(object, sld);
00491 
00492     switch (sdb->cmd) {
00493     case SDT_BOOLX: // All four are various types of (integer) numbers
00494     case SDT_NUMX:
00495     case SDT_ONEOFMANY:
00496     case SDT_MANYOFMANY:
00497       Write_ValidateSetting(ptr, sd, (int32)(size_t)p); break;
00498 
00499     case SDT_STRING:
00500       switch (GetVarMemType(sld->conv)) {
00501         case SLE_VAR_STRB:
00502         case SLE_VAR_STRBQ:
00503           if (p != NULL) ttd_strlcpy((char*)ptr, (const char*)p, sld->length);
00504           break;
00505         case SLE_VAR_STR:
00506         case SLE_VAR_STRQ:
00507           free(*(char**)ptr);
00508           *(char**)ptr = p == NULL ? NULL : strdup((const char*)p);
00509           break;
00510         case SLE_VAR_CHAR: if (p != NULL) *(char *)ptr = *(const char *)p; break;
00511         default: NOT_REACHED();
00512       }
00513       break;
00514 
00515     case SDT_INTLIST: {
00516       if (!LoadIntList((const char*)p, ptr, sld->length, GetVarMemType(sld->conv))) {
00517         SetDParamStr(0, sdb->name);
00518         ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_ARRAY, WL_CRITICAL);
00519       } else if (sd->desc.proc_cnvt != NULL) {
00520         sd->desc.proc_cnvt((const char*)p);
00521       }
00522       break;
00523     }
00524     default: NOT_REACHED();
00525     }
00526   }
00527 }
00528 
00541 static void IniSaveSettings(IniFile *ini, const SettingDesc *sd, const char *grpname, void *object)
00542 {
00543   IniGroup *group_def = NULL, *group;
00544   IniItem *item;
00545   char buf[512];
00546   const char *s;
00547   void *ptr;
00548 
00549   for (; sd->save.cmd != SL_END; sd++) {
00550     const SettingDescBase *sdb = &sd->desc;
00551     const SaveLoad        *sld = &sd->save;
00552 
00553     /* If the setting is not saved to the configuration
00554      * file, just continue with the next setting */
00555     if (!SlIsObjectCurrentlyValid(sld->version_from, sld->version_to)) continue;
00556     if (sld->conv & SLF_NOT_IN_CONFIG) continue;
00557 
00558     /* XXX - wtf is this?? (group override?) */
00559     s = strchr(sdb->name, '.');
00560     if (s != NULL) {
00561       group = ini->GetGroup(sdb->name, s - sdb->name);
00562       s++;
00563     } else {
00564       if (group_def == NULL) group_def = ini->GetGroup(grpname);
00565       s = sdb->name;
00566       group = group_def;
00567     }
00568 
00569     item = group->GetItem(s, true);
00570     ptr = GetVariableAddress(object, sld);
00571 
00572     if (item->value != NULL) {
00573       /* check if the value is the same as the old value */
00574       const void *p = StringToVal(sdb, item->value);
00575 
00576       /* The main type of a variable/setting is in bytes 8-15
00577        * The subtype (what kind of numbers do we have there) is in 0-7 */
00578       switch (sdb->cmd) {
00579       case SDT_BOOLX:
00580       case SDT_NUMX:
00581       case SDT_ONEOFMANY:
00582       case SDT_MANYOFMANY:
00583         switch (GetVarMemType(sld->conv)) {
00584         case SLE_VAR_BL:
00585           if (*(bool*)ptr == (p != NULL)) continue;
00586           break;
00587         case SLE_VAR_I8:
00588         case SLE_VAR_U8:
00589           if (*(byte*)ptr == (byte)(size_t)p) continue;
00590           break;
00591         case SLE_VAR_I16:
00592         case SLE_VAR_U16:
00593           if (*(uint16*)ptr == (uint16)(size_t)p) continue;
00594           break;
00595         case SLE_VAR_I32:
00596         case SLE_VAR_U32:
00597           if (*(uint32*)ptr == (uint32)(size_t)p) continue;
00598           break;
00599         default: NOT_REACHED();
00600         }
00601         break;
00602       default: break; // Assume the other types are always changed
00603       }
00604     }
00605 
00606     /* Value has changed, get the new value and put it into a buffer */
00607     switch (sdb->cmd) {
00608     case SDT_BOOLX:
00609     case SDT_NUMX:
00610     case SDT_ONEOFMANY:
00611     case SDT_MANYOFMANY: {
00612       uint32 i = (uint32)ReadValue(ptr, sld->conv);
00613 
00614       switch (sdb->cmd) {
00615       case SDT_BOOLX:      strecpy(buf, (i != 0) ? "true" : "false", lastof(buf)); break;
00616       case SDT_NUMX:       seprintf(buf, lastof(buf), IsSignedVarMemType(sld->conv) ? "%d" : "%u", i); break;
00617       case SDT_ONEOFMANY:  MakeOneOfMany(buf, lastof(buf), sdb->many, i); break;
00618       case SDT_MANYOFMANY: MakeManyOfMany(buf, lastof(buf), sdb->many, i); break;
00619       default: NOT_REACHED();
00620       }
00621       break;
00622     }
00623 
00624     case SDT_STRING:
00625       switch (GetVarMemType(sld->conv)) {
00626       case SLE_VAR_STRB: strecpy(buf, (char*)ptr, lastof(buf)); break;
00627       case SLE_VAR_STRBQ:seprintf(buf, lastof(buf), "\"%s\"", (char*)ptr); break;
00628       case SLE_VAR_STR:  strecpy(buf, *(char**)ptr, lastof(buf)); break;
00629       case SLE_VAR_STRQ:
00630         if (*(char**)ptr == NULL) {
00631           buf[0] = '\0';
00632         } else {
00633           seprintf(buf, lastof(buf), "\"%s\"", *(char**)ptr);
00634         }
00635         break;
00636       case SLE_VAR_CHAR: buf[0] = *(char*)ptr; buf[1] = '\0'; break;
00637       default: NOT_REACHED();
00638       }
00639       break;
00640 
00641     case SDT_INTLIST:
00642       MakeIntList(buf, lastof(buf), ptr, sld->length, GetVarMemType(sld->conv));
00643       break;
00644     default: NOT_REACHED();
00645     }
00646 
00647     /* The value is different, that means we have to write it to the ini */
00648     free(item->value);
00649     item->value = strdup(buf);
00650   }
00651 }
00652 
00662 static void IniLoadSettingList(IniFile *ini, const char *grpname, StringList *list)
00663 {
00664   IniGroup *group = ini->GetGroup(grpname);
00665 
00666   if (group == NULL || list == NULL) return;
00667 
00668   list->Clear();
00669 
00670   for (const IniItem *item = group->item; item != NULL; item = item->next) {
00671     if (item->name != NULL) *list->Append() = strdup(item->name);
00672   }
00673 }
00674 
00684 static void IniSaveSettingList(IniFile *ini, const char *grpname, StringList *list)
00685 {
00686   IniGroup *group = ini->GetGroup(grpname);
00687 
00688   if (group == NULL || list == NULL) return;
00689   group->Clear();
00690 
00691   for (char **iter = list->Begin(); iter != list->End(); iter++) {
00692     group->GetItem(*iter, true)->SetValue("");
00693   }
00694 }
00695 
00696 /* Begin - Callback Functions for the various settings. */
00697 
00699 static bool v_PositionMainToolbar(int32 p1)
00700 {
00701   if (_game_mode != GM_MENU) PositionMainToolbar(NULL);
00702   return true;
00703 }
00704 
00706 static bool v_PositionStatusbar(int32 p1)
00707 {
00708   if (_game_mode != GM_MENU) {
00709     PositionStatusbar(NULL);
00710     PositionNewsMessage(NULL);
00711     PositionNetworkChatWindow(NULL);
00712   }
00713   return true;
00714 }
00715 
00716 static bool PopulationInLabelActive(int32 p1)
00717 {
00718   UpdateAllTownVirtCoords();
00719   return true;
00720 }
00721 
00722 static bool RedrawScreen(int32 p1)
00723 {
00724   MarkWholeScreenDirty();
00725   return true;
00726 }
00727 
00733 static bool RedrawSmallmap(int32 p1)
00734 {
00735   BuildLandLegend();
00736   BuildOwnerLegend();
00737   SetWindowClassesDirty(WC_SMALLMAP);
00738   return true;
00739 }
00740 
00741 static bool InvalidateDetailsWindow(int32 p1)
00742 {
00743   SetWindowClassesDirty(WC_VEHICLE_DETAILS);
00744   return true;
00745 }
00746 
00747 static bool InvalidateStationBuildWindow(int32 p1)
00748 {
00749   SetWindowDirty(WC_BUILD_STATION, 0);
00750   return true;
00751 }
00752 
00753 static bool InvalidateBuildIndustryWindow(int32 p1)
00754 {
00755   InvalidateWindowData(WC_BUILD_INDUSTRY, 0);
00756   return true;
00757 }
00758 
00759 static bool CloseSignalGUI(int32 p1)
00760 {
00761   if (p1 == 0) {
00762     DeleteWindowByClass(WC_BUILD_SIGNAL);
00763   }
00764   return true;
00765 }
00766 
00767 static bool InvalidateTownViewWindow(int32 p1)
00768 {
00769   InvalidateWindowClassesData(WC_TOWN_VIEW, p1);
00770   return true;
00771 }
00772 
00773 static bool DeleteSelectStationWindow(int32 p1)
00774 {
00775   DeleteWindowById(WC_SELECT_STATION, 0);
00776   return true;
00777 }
00778 
00779 static bool UpdateConsists(int32 p1)
00780 {
00781   Train *t;
00782   FOR_ALL_TRAINS(t) {
00783     /* Update the consist of all trains so the maximum speed is set correctly. */
00784     if (t->IsFrontEngine() || t->IsFreeWagon()) t->ConsistChanged(true);
00785   }
00786   InvalidateWindowClassesData(WC_BUILD_VEHICLE, 0);
00787   return true;
00788 }
00789 
00790 /* Check service intervals of vehicles, p1 is value of % or day based servicing */
00791 static bool CheckInterval(int32 p1)
00792 {
00793   VehicleDefaultSettings *vds;
00794   if (_game_mode == GM_MENU || !Company::IsValidID(_current_company)) {
00795     vds = &_settings_client.company.vehicle;
00796   } else {
00797     vds = &Company::Get(_current_company)->settings.vehicle;
00798   }
00799 
00800   if (p1 != 0) {
00801     vds->servint_trains   = 50;
00802     vds->servint_roadveh  = 50;
00803     vds->servint_aircraft = 50;
00804     vds->servint_ships    = 50;
00805   } else {
00806     vds->servint_trains   = 150;
00807     vds->servint_roadveh  = 150;
00808     vds->servint_aircraft = 100;
00809     vds->servint_ships    = 360;
00810   }
00811 
00812   InvalidateDetailsWindow(0);
00813 
00814   return true;
00815 }
00816 
00817 static bool TrainAccelerationModelChanged(int32 p1)
00818 {
00819   Train *t;
00820   FOR_ALL_TRAINS(t) {
00821     if (t->IsFrontEngine()) {
00822       t->tcache.cached_max_curve_speed = t->GetCurveSpeedLimit();
00823       t->UpdateAcceleration();
00824     }
00825   }
00826 
00827   /* These windows show acceleration values only when realistic acceleration is on. They must be redrawn after a setting change. */
00828   SetWindowClassesDirty(WC_ENGINE_PREVIEW);
00829   InvalidateWindowClassesData(WC_BUILD_VEHICLE, 0);
00830   SetWindowClassesDirty(WC_VEHICLE_DETAILS);
00831 
00832   return true;
00833 }
00834 
00840 static bool TrainSlopeSteepnessChanged(int32 p1)
00841 {
00842   Train *t;
00843   FOR_ALL_TRAINS(t) {
00844     if (t->IsFrontEngine()) t->CargoChanged();
00845   }
00846 
00847   return true;
00848 }
00849 
00855 static bool RoadVehAccelerationModelChanged(int32 p1)
00856 {
00857   if (_settings_game.vehicle.roadveh_acceleration_model != AM_ORIGINAL) {
00858     RoadVehicle *rv;
00859     FOR_ALL_ROADVEHICLES(rv) {
00860       if (rv->IsFrontEngine()) {
00861         rv->CargoChanged();
00862       }
00863     }
00864   }
00865 
00866   /* These windows show acceleration values only when realistic acceleration is on. They must be redrawn after a setting change. */
00867   SetWindowClassesDirty(WC_ENGINE_PREVIEW);
00868   InvalidateWindowClassesData(WC_BUILD_VEHICLE, 0);
00869   SetWindowClassesDirty(WC_VEHICLE_DETAILS);
00870 
00871   return true;
00872 }
00873 
00879 static bool RoadVehSlopeSteepnessChanged(int32 p1)
00880 {
00881   RoadVehicle *rv;
00882   FOR_ALL_ROADVEHICLES(rv) {
00883     if (rv->IsFrontEngine()) rv->CargoChanged();
00884   }
00885 
00886   return true;
00887 }
00888 
00889 static bool DragSignalsDensityChanged(int32)
00890 {
00891   InvalidateWindowData(WC_BUILD_SIGNAL, 0);
00892 
00893   return true;
00894 }
00895 
00896 static bool TownFoundingChanged(int32 p1)
00897 {
00898   if (_game_mode != GM_EDITOR && _settings_game.economy.found_town == TF_FORBIDDEN) {
00899     DeleteWindowById(WC_FOUND_TOWN, 0);
00900     return true;
00901   }
00902   InvalidateWindowData(WC_FOUND_TOWN, 0);
00903   return true;
00904 }
00905 
00906 static bool InvalidateVehTimetableWindow(int32 p1)
00907 {
00908   InvalidateWindowClassesData(WC_VEHICLE_TIMETABLE, -2);
00909   return true;
00910 }
00911 
00912 static bool ZoomMinMaxChanged(int32 p1)
00913 {
00914   extern void ConstrainAllViewportsZoom();
00915   ConstrainAllViewportsZoom();
00916   GfxClearSpriteCache();
00917   return true;
00918 }
00919 
00927 static bool InvalidateNewGRFChangeWindows(int32 p1)
00928 {
00929   InvalidateWindowClassesData(WC_SAVELOAD);
00930   DeleteWindowByClass(WC_GAME_OPTIONS);
00931   ReInitAllWindows();
00932   return true;
00933 }
00934 
00935 static bool InvalidateCompanyLiveryWindow(int32 p1)
00936 {
00937   InvalidateWindowClassesData(WC_COMPANY_COLOUR);
00938   return RedrawScreen(p1);
00939 }
00940 
00941 static bool InvalidateIndustryViewWindow(int32 p1)
00942 {
00943   InvalidateWindowClassesData(WC_INDUSTRY_VIEW);
00944   return true;
00945 }
00946 
00947 static bool InvalidateAISettingsWindow(int32 p1)
00948 {
00949   InvalidateWindowClassesData(WC_AI_SETTINGS);
00950   return true;
00951 }
00952 
00958 static bool RedrawTownAuthority(int32 p1)
00959 {
00960   SetWindowClassesDirty(WC_TOWN_AUTHORITY);
00961   return true;
00962 }
00963 
00969 static bool InvalidateCompanyInfrastructureWindow(int32 p1)
00970 {
00971   InvalidateWindowClassesData(WC_COMPANY_INFRASTRUCTURE);
00972   return true;
00973 }
00974 
00975 /*
00976  * A: competitors
00977  * B: competitor start time. Deprecated since savegame version 110.
00978  * C: town count (3 = high, 0 = very low)
00979  * D: industry count (4 = high, 0 = none)
00980  * E: inital loan (in GBP)
00981  * F: interest rate
00982  * G: running costs (0 = low, 2 = high)
00983  * H: construction speed of competitors (0 = very slow, 4 = very fast)
00984  * I: competitor intelligence. Deprecated since savegame version 110.
00985  * J: breakdowns (0 = off, 2 = normal)
00986  * K: subsidy multiplier (0 = 1.5, 3 = 4.0)
00987  * L: construction cost (0-2)
00988  * M: terrain type (0 = very flat, 3 = mountainous)
00989  * N: amount of water (0 = very low, 3 = high)
00990  * O: economy (0 = steady, 1 = fluctuating)
00991  * P: Train reversing (0 = end of line + stations, 1 = end of line)
00992  * Q: disasters
00993  * R: area restructuring (0 = permissive, 2 = hostile)
00994  * S: the difficulty level
00995  */
00996 static const DifficultySettings _default_game_diff[3] = { /*
00997    A, C, D,      E, F, G, H, J, K, L, M, N, O, P, Q, R, S*/
00998   {2, 2, 4, 300000, 2, 0, 2, 1, 2, 0, 1, 0, 0, 0, 0, 0, 0}, 
00999   {4, 2, 3, 150000, 3, 1, 3, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1}, 
01000   {7, 3, 3, 100000, 4, 1, 3, 2, 0, 2, 3, 2, 1, 1, 1, 2, 2}, 
01001 };
01002 
01003 void SetDifficultyLevel(int mode, DifficultySettings *gm_opt)
01004 {
01005   assert(mode <= 3);
01006 
01007   if (mode != 3) {
01008     *gm_opt = _default_game_diff[mode];
01009   } else {
01010     gm_opt->diff_level = 3;
01011   }
01012 }
01013 
01015 static void ValidateSettings()
01016 {
01017   /* Force the difficulty levels to correct values if they are invalid. */
01018   if (_settings_newgame.difficulty.diff_level != 3) {
01019     SetDifficultyLevel(_settings_newgame.difficulty.diff_level, &_settings_newgame.difficulty);
01020   }
01021 
01022   /* Do not allow a custom sea level with the original land generator. */
01023   if (_settings_newgame.game_creation.land_generator == 0 &&
01024       _settings_newgame.difficulty.quantity_sea_lakes == CUSTOM_SEA_LEVEL_NUMBER_DIFFICULTY) {
01025     _settings_newgame.difficulty.quantity_sea_lakes = CUSTOM_SEA_LEVEL_MIN_PERCENTAGE;
01026   }
01027 }
01028 
01029 static bool DifficultyReset(int32 level)
01030 {
01031   /* In game / in the scenario editor you can set the difficulty level only to custom. This is
01032    * needed by the AI Gui code that sets the difficulty level when you change any AI settings. */
01033   if (_game_mode != GM_MENU && level != 3) return false;
01034   SetDifficultyLevel(level, &GetGameSettings().difficulty);
01035   return true;
01036 }
01037 
01038 static bool DifficultyChange(int32)
01039 {
01040   if (_game_mode == GM_MENU) {
01041     if (_settings_newgame.difficulty.diff_level != 3) {
01042       ShowErrorMessage(STR_WARNING_DIFFICULTY_TO_CUSTOM, INVALID_STRING_ID, WL_WARNING);
01043       _settings_newgame.difficulty.diff_level = 3;
01044     }
01045     SetWindowClassesDirty(WC_SELECT_GAME);
01046   } else {
01047     _settings_game.difficulty.diff_level = 3;
01048   }
01049 
01050   /* If we are a network-client, update the difficult setting (if it is open).
01051    * Use this instead of just dirtying the window because we need to load in
01052    * the new difficulty settings */
01053   if (_networking) InvalidateWindowClassesData(WC_GAME_OPTIONS, GOID_DIFFICULTY_CHANGED);
01054 
01055   return true;
01056 }
01057 
01058 static bool DifficultyNoiseChange(int32 i)
01059 {
01060   if (_game_mode == GM_NORMAL) {
01061     UpdateAirportsNoise();
01062     if (_settings_game.economy.station_noise_level) {
01063       InvalidateWindowClassesData(WC_TOWN_VIEW, 0);
01064     }
01065   }
01066 
01067   return DifficultyChange(i);
01068 }
01069 
01070 static bool MaxNoAIsChange(int32 i)
01071 {
01072   if (GetGameSettings().difficulty.max_no_competitors != 0 &&
01073       AI::GetInfoList()->size() == 0 &&
01074       (!_networking || _network_server)) {
01075     ShowErrorMessage(STR_WARNING_NO_SUITABLE_AI, INVALID_STRING_ID, WL_CRITICAL);
01076   }
01077 
01078   return DifficultyChange(i);
01079 }
01080 
01086 static bool CheckRoadSide(int p1)
01087 {
01088   extern bool RoadVehiclesAreBuilt();
01089   return _game_mode == GM_MENU || !RoadVehiclesAreBuilt();
01090 }
01091 
01099 static size_t ConvertLandscape(const char *value)
01100 {
01101   /* try with the old values */
01102   return LookupOneOfMany("normal|hilly|desert|candy", value);
01103 }
01104 
01105 static bool CheckFreeformEdges(int32 p1)
01106 {
01107   if (_game_mode == GM_MENU) return true;
01108   if (p1 != 0) {
01109     Ship *s;
01110     FOR_ALL_SHIPS(s) {
01111       /* Check if there is a ship on the northern border. */
01112       if (TileX(s->tile) == 0 || TileY(s->tile) == 0) {
01113         ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_EMPTY, INVALID_STRING_ID, WL_ERROR);
01114         return false;
01115       }
01116     }
01117     BaseStation *st;
01118     FOR_ALL_BASE_STATIONS(st) {
01119       /* Check if there is a non-deleted buoy on the northern border. */
01120       if (st->IsInUse() && (TileX(st->xy) == 0 || TileY(st->xy) == 0)) {
01121         ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_EMPTY, INVALID_STRING_ID, WL_ERROR);
01122         return false;
01123       }
01124     }
01125     for (uint i = 0; i < MapSizeX(); i++) MakeVoid(TileXY(i, 0));
01126     for (uint i = 0; i < MapSizeY(); i++) MakeVoid(TileXY(0, i));
01127   } else {
01128     for (uint i = 0; i < MapMaxX(); i++) {
01129       if (TileHeight(TileXY(i, 1)) != 0) {
01130         ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
01131         return false;
01132       }
01133     }
01134     for (uint i = 1; i < MapMaxX(); i++) {
01135       if (!IsTileType(TileXY(i, MapMaxY() - 1), MP_WATER) || TileHeight(TileXY(1, MapMaxY())) != 0) {
01136         ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
01137         return false;
01138       }
01139     }
01140     for (uint i = 0; i < MapMaxY(); i++) {
01141       if (TileHeight(TileXY(1, i)) != 0) {
01142         ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
01143         return false;
01144       }
01145     }
01146     for (uint i = 1; i < MapMaxY(); i++) {
01147       if (!IsTileType(TileXY(MapMaxX() - 1, i), MP_WATER) || TileHeight(TileXY(MapMaxX(), i)) != 0) {
01148         ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
01149         return false;
01150       }
01151     }
01152     /* Make tiles at the border water again. */
01153     for (uint i = 0; i < MapMaxX(); i++) {
01154       SetTileHeight(TileXY(i, 0), 0);
01155       SetTileType(TileXY(i, 0), MP_WATER);
01156     }
01157     for (uint i = 0; i < MapMaxY(); i++) {
01158       SetTileHeight(TileXY(0, i), 0);
01159       SetTileType(TileXY(0, i), MP_WATER);
01160     }
01161   }
01162   MarkWholeScreenDirty();
01163   return true;
01164 }
01165 
01170 static bool ChangeDynamicEngines(int32 p1)
01171 {
01172   if (_game_mode == GM_MENU) return true;
01173 
01174   if (!EngineOverrideManager::ResetToCurrentNewGRFConfig()) {
01175     ShowErrorMessage(STR_CONFIG_SETTING_DYNAMIC_ENGINES_EXISTING_VEHICLES, INVALID_STRING_ID, WL_ERROR);
01176     return false;
01177   }
01178 
01179   return true;
01180 }
01181 
01182 static bool StationCatchmentChanged(int32 p1)
01183 {
01184   Station::RecomputeIndustriesNearForAll();
01185   return true;
01186 }
01187 
01188 
01189 #ifdef ENABLE_NETWORK
01190 
01191 static bool UpdateClientName(int32 p1)
01192 {
01193   NetworkUpdateClientName();
01194   return true;
01195 }
01196 
01197 static bool UpdateServerPassword(int32 p1)
01198 {
01199   if (strcmp(_settings_client.network.server_password, "*") == 0) {
01200     _settings_client.network.server_password[0] = '\0';
01201   }
01202 
01203   return true;
01204 }
01205 
01206 static bool UpdateRconPassword(int32 p1)
01207 {
01208   if (strcmp(_settings_client.network.rcon_password, "*") == 0) {
01209     _settings_client.network.rcon_password[0] = '\0';
01210   }
01211 
01212   return true;
01213 }
01214 
01215 static bool UpdateClientConfigValues(int32 p1)
01216 {
01217   if (_network_server) NetworkServerSendConfigUpdate();
01218 
01219   return true;
01220 }
01221 
01222 #endif /* ENABLE_NETWORK */
01223 
01224 
01225 /* End - Callback Functions */
01226 
01230 static void PrepareOldDiffCustom()
01231 {
01232   memset(_old_diff_custom, 0, sizeof(_old_diff_custom));
01233 }
01234 
01241 static void HandleOldDiffCustom(bool savegame)
01242 {
01243   uint options_to_load = GAME_DIFFICULTY_NUM - ((savegame && IsSavegameVersionBefore(4)) ? 1 : 0);
01244 
01245   if (!savegame) {
01246     /* If we did read to old_diff_custom, then at least one value must be non 0. */
01247     bool old_diff_custom_used = false;
01248     for (uint i = 0; i < options_to_load && !old_diff_custom_used; i++) {
01249       old_diff_custom_used = (_old_diff_custom[i] != 0);
01250     }
01251 
01252     if (!old_diff_custom_used) return;
01253   }
01254 
01255   for (uint i = 0; i < options_to_load; i++) {
01256     const SettingDesc *sd = &_settings[i];
01257     /* Skip deprecated options */
01258     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
01259     void *var = GetVariableAddress(savegame ? &_settings_game : &_settings_newgame, &sd->save);
01260     Write_ValidateSetting(var, sd, (int32)((i == 4 ? 1000 : 1) * _old_diff_custom[i]));
01261   }
01262 }
01263 
01270 static bool ConvertOldNewsSetting(const char *name, const char *value)
01271 {
01272   if (strcasecmp(name, "openclose") == 0) {
01273     /* openclose has been split in "open" and "close".
01274      * So the job is now to decrypt the value of the old news config
01275      * and give it to the two newly introduced ones*/
01276 
01277     NewsDisplay display = ND_OFF; // default
01278     if (strcasecmp(value, "full") == 0) {
01279       display = ND_FULL;
01280     } else if (strcasecmp(value, "summarized") == 0) {
01281       display = ND_SUMMARY;
01282     }
01283     /* tranfert of values */
01284     _news_type_data[NT_INDUSTRY_OPEN].display = display;
01285     _news_type_data[NT_INDUSTRY_CLOSE].display = display;
01286     return true;
01287   }
01288   return false;
01289 }
01290 
01296 static void NewsDisplayLoadConfig(IniFile *ini, const char *grpname)
01297 {
01298   IniGroup *group = ini->GetGroup(grpname);
01299   IniItem *item;
01300 
01301   /* If no group exists, return */
01302   if (group == NULL) return;
01303 
01304   for (item = group->item; item != NULL; item = item->next) {
01305     int news_item = -1;
01306     for (int i = 0; i < NT_END; i++) {
01307       if (strcasecmp(item->name, _news_type_data[i].name) == 0) {
01308         news_item = i;
01309         break;
01310       }
01311     }
01312 
01313     /* the config been read is not within current aceptable config */
01314     if (news_item == -1) {
01315       /* if the conversion function cannot process it, advice by a debug warning*/
01316       if (!ConvertOldNewsSetting(item->name, item->value)) {
01317         DEBUG(misc, 0, "Invalid display option: %s", item->name);
01318       }
01319       /* in all cases, there is nothing left to do */
01320       continue;
01321     }
01322 
01323     if (StrEmpty(item->value)) {
01324       DEBUG(misc, 0, "Empty display value for newstype %s", item->name);
01325       continue;
01326     } else if (strcasecmp(item->value, "full") == 0) {
01327       _news_type_data[news_item].display = ND_FULL;
01328     } else if (strcasecmp(item->value, "off") == 0) {
01329       _news_type_data[news_item].display = ND_OFF;
01330     } else if (strcasecmp(item->value, "summarized") == 0) {
01331       _news_type_data[news_item].display = ND_SUMMARY;
01332     } else {
01333       DEBUG(misc, 0, "Invalid display value for newstype %s: %s", item->name, item->value);
01334       continue;
01335     }
01336   }
01337 }
01338 
01339 static void AILoadConfig(IniFile *ini, const char *grpname)
01340 {
01341   IniGroup *group = ini->GetGroup(grpname);
01342   IniItem *item;
01343 
01344   /* Clean any configured AI */
01345   for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
01346     AIConfig::GetConfig(c, AIConfig::SSS_FORCE_NEWGAME)->Change(NULL);
01347   }
01348 
01349   /* If no group exists, return */
01350   if (group == NULL) return;
01351 
01352   CompanyID c = COMPANY_FIRST;
01353   for (item = group->item; c < MAX_COMPANIES && item != NULL; c++, item = item->next) {
01354     AIConfig *config = AIConfig::GetConfig(c, AIConfig::SSS_FORCE_NEWGAME);
01355 
01356     config->Change(item->name);
01357     if (!config->HasScript()) {
01358       if (strcmp(item->name, "none") != 0) {
01359         DEBUG(script, 0, "The AI by the name '%s' was no longer found, and removed from the list.", item->name);
01360         continue;
01361       }
01362     }
01363     if (item->value != NULL) config->StringToSettings(item->value);
01364   }
01365 }
01366 
01367 static void GameLoadConfig(IniFile *ini, const char *grpname)
01368 {
01369   IniGroup *group = ini->GetGroup(grpname);
01370   IniItem *item;
01371 
01372   /* Clean any configured GameScript */
01373   GameConfig::GetConfig(GameConfig::SSS_FORCE_NEWGAME)->Change(NULL);
01374 
01375   /* If no group exists, return */
01376   if (group == NULL) return;
01377 
01378   item = group->item;
01379   if (item == NULL) return;
01380 
01381   GameConfig *config = GameConfig::GetConfig(AIConfig::SSS_FORCE_NEWGAME);
01382 
01383   config->Change(item->name);
01384   if (!config->HasScript()) {
01385     if (strcmp(item->name, "none") != 0) {
01386       DEBUG(script, 0, "The GameScript by the name '%s' was no longer found, and removed from the list.", item->name);
01387       return;
01388     }
01389   }
01390   if (item->value != NULL) config->StringToSettings(item->value);
01391 }
01392 
01399 static GRFConfig *GRFLoadConfig(IniFile *ini, const char *grpname, bool is_static)
01400 {
01401   IniGroup *group = ini->GetGroup(grpname);
01402   IniItem *item;
01403   GRFConfig *first = NULL;
01404   GRFConfig **curr = &first;
01405 
01406   if (group == NULL) return NULL;
01407 
01408   for (item = group->item; item != NULL; item = item->next) {
01409     GRFConfig *c = new GRFConfig(item->name);
01410 
01411     /* Parse parameters */
01412     if (!StrEmpty(item->value)) {
01413       c->num_params = ParseIntList(item->value, (int*)c->param, lengthof(c->param));
01414       if (c->num_params == (byte)-1) {
01415         SetDParamStr(0, item->name);
01416         ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_ARRAY, WL_CRITICAL);
01417         c->num_params = 0;
01418       }
01419     }
01420 
01421     /* Check if item is valid */
01422     if (!FillGRFDetails(c, is_static) || HasBit(c->flags, GCF_INVALID)) {
01423       if (c->status == GCS_NOT_FOUND) {
01424         SetDParam(1, STR_CONFIG_ERROR_INVALID_GRF_NOT_FOUND);
01425       } else if (HasBit(c->flags, GCF_UNSAFE)) {
01426         SetDParam(1, STR_CONFIG_ERROR_INVALID_GRF_UNSAFE);
01427       } else if (HasBit(c->flags, GCF_SYSTEM)) {
01428         SetDParam(1, STR_CONFIG_ERROR_INVALID_GRF_SYSTEM);
01429       } else if (HasBit(c->flags, GCF_INVALID)) {
01430         SetDParam(1, STR_CONFIG_ERROR_INVALID_GRF_INCOMPATIBLE);
01431       } else {
01432         SetDParam(1, STR_CONFIG_ERROR_INVALID_GRF_UNKNOWN);
01433       }
01434 
01435       SetDParamStr(0, item->name);
01436       ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_INVALID_GRF, WL_CRITICAL);
01437       delete c;
01438       continue;
01439     }
01440 
01441     /* Check for duplicate GRFID (will also check for duplicate filenames) */
01442     bool duplicate = false;
01443     for (const GRFConfig *gc = first; gc != NULL; gc = gc->next) {
01444       if (gc->ident.grfid == c->ident.grfid) {
01445         SetDParamStr(0, item->name);
01446         SetDParamStr(1, gc->filename);
01447         ShowErrorMessage(STR_CONFIG_ERROR, STR_CONFIG_ERROR_DUPLICATE_GRFID, WL_CRITICAL);
01448         duplicate = true;
01449         break;
01450       }
01451     }
01452     if (duplicate) {
01453       delete c;
01454       continue;
01455     }
01456 
01457     /* Mark file as static to avoid saving in savegame. */
01458     if (is_static) SetBit(c->flags, GCF_STATIC);
01459 
01460     /* Add item to list */
01461     *curr = c;
01462     curr = &c->next;
01463   }
01464 
01465   return first;
01466 }
01467 
01473 static void NewsDisplaySaveConfig(IniFile *ini, const char *grpname)
01474 {
01475   IniGroup *group = ini->GetGroup(grpname);
01476 
01477   for (int i = 0; i < NT_END; i++) {
01478     const char *value;
01479     int v = _news_type_data[i].display;
01480 
01481     value = (v == ND_OFF ? "off" : (v == ND_SUMMARY ? "summarized" : "full"));
01482 
01483     group->GetItem(_news_type_data[i].name, true)->SetValue(value);
01484   }
01485 }
01486 
01487 static void AISaveConfig(IniFile *ini, const char *grpname)
01488 {
01489   IniGroup *group = ini->GetGroup(grpname);
01490 
01491   if (group == NULL) return;
01492   group->Clear();
01493 
01494   for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
01495     AIConfig *config = AIConfig::GetConfig(c, AIConfig::SSS_FORCE_NEWGAME);
01496     const char *name;
01497     char value[1024];
01498     config->SettingsToString(value, lengthof(value));
01499 
01500     if (config->HasScript()) {
01501       name = config->GetName();
01502     } else {
01503       name = "none";
01504     }
01505 
01506     IniItem *item = new IniItem(group, name, strlen(name));
01507     item->SetValue(value);
01508   }
01509 }
01510 
01511 static void GameSaveConfig(IniFile *ini, const char *grpname)
01512 {
01513   IniGroup *group = ini->GetGroup(grpname);
01514 
01515   if (group == NULL) return;
01516   group->Clear();
01517 
01518   GameConfig *config = GameConfig::GetConfig(AIConfig::SSS_FORCE_NEWGAME);
01519   const char *name;
01520   char value[1024];
01521   config->SettingsToString(value, lengthof(value));
01522 
01523   if (config->HasScript()) {
01524     name = config->GetName();
01525   } else {
01526     name = "none";
01527   }
01528 
01529   IniItem *item = new IniItem(group, name, strlen(name));
01530   item->SetValue(value);
01531 }
01532 
01537 static void SaveVersionInConfig(IniFile *ini)
01538 {
01539   IniGroup *group = ini->GetGroup("version");
01540 
01541   char version[9];
01542   snprintf(version, lengthof(version), "%08X", _openttd_newgrf_version);
01543 
01544   const char * const versions[][2] = {
01545     { "version_string", _openttd_revision },
01546     { "version_number", version }
01547   };
01548 
01549   for (uint i = 0; i < lengthof(versions); i++) {
01550     group->GetItem(versions[i][0], true)->SetValue(versions[i][1]);
01551   }
01552 }
01553 
01554 /* Save a GRF configuration to the given group name */
01555 static void GRFSaveConfig(IniFile *ini, const char *grpname, const GRFConfig *list)
01556 {
01557   ini->RemoveGroup(grpname);
01558   IniGroup *group = ini->GetGroup(grpname);
01559   const GRFConfig *c;
01560 
01561   for (c = list; c != NULL; c = c->next) {
01562     char params[512];
01563     GRFBuildParamList(params, c, lastof(params));
01564 
01565     group->GetItem(c->filename, true)->SetValue(params);
01566   }
01567 }
01568 
01569 /* Common handler for saving/loading variables to the configuration file */
01570 static void HandleSettingDescs(IniFile *ini, SettingDescProc *proc, SettingDescProcList *proc_list, bool basic_settings = true, bool other_settings = true)
01571 {
01572   if (basic_settings) {
01573     proc(ini, (const SettingDesc*)_misc_settings,    "misc",  NULL);
01574 #if defined(WIN32) && !defined(DEDICATED)
01575     proc(ini, (const SettingDesc*)_win32_settings,   "win32", NULL);
01576 #endif /* WIN32 */
01577   }
01578 
01579   if (other_settings) {
01580     proc(ini, _settings,         "patches",  &_settings_newgame);
01581     proc(ini, _currency_settings,"currency", &_custom_currency);
01582     proc(ini, _company_settings, "company",  &_settings_client.company);
01583 
01584 #ifdef ENABLE_NETWORK
01585     proc_list(ini, "server_bind_addresses", &_network_bind_list);
01586     proc_list(ini, "servers", &_network_host_list);
01587     proc_list(ini, "bans",    &_network_ban_list);
01588 #endif /* ENABLE_NETWORK */
01589   }
01590 }
01591 
01592 static IniFile *IniLoadConfig()
01593 {
01594   IniFile *ini = new IniFile(_list_group_names);
01595   ini->LoadFromDisk(_config_file, BASE_DIR);
01596   return ini;
01597 }
01598 
01603 void LoadFromConfig(bool minimal)
01604 {
01605   IniFile *ini = IniLoadConfig();
01606   if (!minimal) ResetCurrencies(false); // Initialize the array of curencies, without preserving the custom one
01607 
01608   /* Load basic settings only during bootstrap, load other settings not during bootstrap */
01609   HandleSettingDescs(ini, IniLoadSettings, IniLoadSettingList, minimal, !minimal);
01610 
01611   if (!minimal) {
01612     _grfconfig_newgame = GRFLoadConfig(ini, "newgrf", false);
01613     _grfconfig_static  = GRFLoadConfig(ini, "newgrf-static", true);
01614     NewsDisplayLoadConfig(ini, "news_display");
01615     AILoadConfig(ini, "ai_players");
01616     GameLoadConfig(ini, "game_scripts");
01617 
01618     PrepareOldDiffCustom();
01619     IniLoadSettings(ini, _gameopt_settings, "gameopt", &_settings_newgame);
01620     HandleOldDiffCustom(false);
01621 
01622     ValidateSettings();
01623   }
01624 
01625   delete ini;
01626 }
01627 
01629 void SaveToConfig()
01630 {
01631   IniFile *ini = IniLoadConfig();
01632 
01633   /* Remove some obsolete groups. These have all been loaded into other groups. */
01634   ini->RemoveGroup("patches");
01635   ini->RemoveGroup("yapf");
01636   ini->RemoveGroup("gameopt");
01637 
01638   HandleSettingDescs(ini, IniSaveSettings, IniSaveSettingList);
01639   GRFSaveConfig(ini, "newgrf", _grfconfig_newgame);
01640   GRFSaveConfig(ini, "newgrf-static", _grfconfig_static);
01641   NewsDisplaySaveConfig(ini, "news_display");
01642   AISaveConfig(ini, "ai_players");
01643   GameSaveConfig(ini, "game_scripts");
01644   SaveVersionInConfig(ini);
01645   ini->SaveToDisk(_config_file);
01646   delete ini;
01647 }
01648 
01653 void GetGRFPresetList(GRFPresetList *list)
01654 {
01655   list->Clear();
01656 
01657   IniFile *ini = IniLoadConfig();
01658   IniGroup *group;
01659   for (group = ini->group; group != NULL; group = group->next) {
01660     if (strncmp(group->name, "preset-", 7) == 0) {
01661       *list->Append() = strdup(group->name + 7);
01662     }
01663   }
01664 
01665   delete ini;
01666 }
01667 
01674 GRFConfig *LoadGRFPresetFromConfig(const char *config_name)
01675 {
01676   char *section = (char*)alloca(strlen(config_name) + 8);
01677   sprintf(section, "preset-%s", config_name);
01678 
01679   IniFile *ini = IniLoadConfig();
01680   GRFConfig *config = GRFLoadConfig(ini, section, false);
01681   delete ini;
01682 
01683   return config;
01684 }
01685 
01692 void SaveGRFPresetToConfig(const char *config_name, GRFConfig *config)
01693 {
01694   char *section = (char*)alloca(strlen(config_name) + 8);
01695   sprintf(section, "preset-%s", config_name);
01696 
01697   IniFile *ini = IniLoadConfig();
01698   GRFSaveConfig(ini, section, config);
01699   ini->SaveToDisk(_config_file);
01700   delete ini;
01701 }
01702 
01707 void DeleteGRFPresetFromConfig(const char *config_name)
01708 {
01709   char *section = (char*)alloca(strlen(config_name) + 8);
01710   sprintf(section, "preset-%s", config_name);
01711 
01712   IniFile *ini = IniLoadConfig();
01713   ini->RemoveGroup(section);
01714   ini->SaveToDisk(_config_file);
01715   delete ini;
01716 }
01717 
01718 static const SettingDesc *GetSettingDescription(uint index)
01719 {
01720   if (index >= lengthof(_settings)) return NULL;
01721   return &_settings[index];
01722 }
01723 
01735 CommandCost CmdChangeSetting(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01736 {
01737   const SettingDesc *sd = GetSettingDescription(p1);
01738 
01739   if (sd == NULL) return CMD_ERROR;
01740   if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) return CMD_ERROR;
01741 
01742   if ((sd->desc.flags & SGF_NETWORK_ONLY) && !_networking && _game_mode != GM_MENU) return CMD_ERROR;
01743   if ((sd->desc.flags & SGF_NO_NETWORK) && _networking) return CMD_ERROR;
01744   if ((sd->desc.flags & SGF_NEWGAME_ONLY) &&
01745       (_game_mode == GM_NORMAL ||
01746       (_game_mode == GM_EDITOR && (sd->desc.flags & SGF_SCENEDIT_TOO) == 0))) {
01747     return CMD_ERROR;
01748   }
01749 
01750   if (flags & DC_EXEC) {
01751     void *var = GetVariableAddress(&GetGameSettings(), &sd->save);
01752 
01753     int32 oldval = (int32)ReadValue(var, sd->save.conv);
01754     int32 newval = (int32)p2;
01755 
01756     Write_ValidateSetting(var, sd, newval);
01757     newval = (int32)ReadValue(var, sd->save.conv);
01758 
01759     if (oldval == newval) return CommandCost();
01760 
01761     if (sd->desc.proc != NULL && !sd->desc.proc(newval)) {
01762       WriteValue(var, sd->save.conv, (int64)oldval);
01763       return CommandCost();
01764     }
01765 
01766     if (sd->desc.flags & SGF_NO_NETWORK) {
01767       GamelogStartAction(GLAT_SETTING);
01768       GamelogSetting(sd->desc.name, oldval, newval);
01769       GamelogStopAction();
01770     }
01771 
01772     SetWindowClassesDirty(WC_GAME_OPTIONS);
01773   }
01774 
01775   return CommandCost();
01776 }
01777 
01788 CommandCost CmdChangeCompanySetting(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01789 {
01790   if (p1 >= lengthof(_company_settings)) return CMD_ERROR;
01791   const SettingDesc *sd = &_company_settings[p1];
01792 
01793   if (flags & DC_EXEC) {
01794     void *var = GetVariableAddress(&Company::Get(_current_company)->settings, &sd->save);
01795 
01796     int32 oldval = (int32)ReadValue(var, sd->save.conv);
01797     int32 newval = (int32)p2;
01798 
01799     Write_ValidateSetting(var, sd, newval);
01800     newval = (int32)ReadValue(var, sd->save.conv);
01801 
01802     if (oldval == newval) return CommandCost();
01803 
01804     if (sd->desc.proc != NULL && !sd->desc.proc(newval)) {
01805       WriteValue(var, sd->save.conv, (int64)oldval);
01806       return CommandCost();
01807     }
01808 
01809     SetWindowClassesDirty(WC_GAME_OPTIONS);
01810   }
01811 
01812   return CommandCost();
01813 }
01814 
01822 bool SetSettingValue(uint index, int32 value, bool force_newgame)
01823 {
01824   const SettingDesc *sd = &_settings[index];
01825   /* If an item is company-based, we do not send it over the network
01826    * (if any) to change. Also *hack*hack* we update the _newgame version
01827    * of settings because changing a company-based setting in a game also
01828    * changes its defaults. At least that is the convention we have chosen */
01829   if (sd->save.conv & SLF_NO_NETWORK_SYNC) {
01830     void *var = GetVariableAddress(&GetGameSettings(), &sd->save);
01831     Write_ValidateSetting(var, sd, value);
01832 
01833     if (_game_mode != GM_MENU) {
01834       void *var2 = GetVariableAddress(&_settings_newgame, &sd->save);
01835       Write_ValidateSetting(var2, sd, value);
01836     }
01837     if (sd->desc.proc != NULL) sd->desc.proc((int32)ReadValue(var, sd->save.conv));
01838 
01839     SetWindowClassesDirty(WC_GAME_OPTIONS);
01840 
01841     return true;
01842   }
01843 
01844   if (force_newgame) {
01845     void *var2 = GetVariableAddress(&_settings_newgame, &sd->save);
01846     Write_ValidateSetting(var2, sd, value);
01847     return true;
01848   }
01849 
01850   /* send non-company-based settings over the network */
01851   if (!_networking || (_networking && _network_server)) {
01852     return DoCommandP(0, index, value, CMD_CHANGE_SETTING);
01853   }
01854   return false;
01855 }
01856 
01863 void SetCompanySetting(uint index, int32 value)
01864 {
01865   const SettingDesc *sd = &_company_settings[index];
01866   if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01867     DoCommandP(0, index, value, CMD_CHANGE_COMPANY_SETTING);
01868   } else {
01869     void *var = GetVariableAddress(&_settings_client.company, &sd->save);
01870     Write_ValidateSetting(var, sd, value);
01871     if (sd->desc.proc != NULL) sd->desc.proc((int32)ReadValue(var, sd->save.conv));
01872   }
01873 }
01874 
01878 void SetDefaultCompanySettings(CompanyID cid)
01879 {
01880   Company *c = Company::Get(cid);
01881   const SettingDesc *sd;
01882   for (sd = _company_settings; sd->save.cmd != SL_END; sd++) {
01883     void *var = GetVariableAddress(&c->settings, &sd->save);
01884     Write_ValidateSetting(var, sd, (int32)(size_t)sd->desc.def);
01885   }
01886 }
01887 
01888 #if defined(ENABLE_NETWORK)
01889 
01892 void SyncCompanySettings()
01893 {
01894   const SettingDesc *sd;
01895   uint i = 0;
01896   for (sd = _company_settings; sd->save.cmd != SL_END; sd++, i++) {
01897     const void *old_var = GetVariableAddress(&Company::Get(_current_company)->settings, &sd->save);
01898     const void *new_var = GetVariableAddress(&_settings_client.company, &sd->save);
01899     uint32 old_value = (uint32)ReadValue(old_var, sd->save.conv);
01900     uint32 new_value = (uint32)ReadValue(new_var, sd->save.conv);
01901     if (old_value != new_value) NetworkSendCommand(0, i, new_value, CMD_CHANGE_COMPANY_SETTING, NULL, NULL, _local_company);
01902   }
01903 }
01904 #endif /* ENABLE_NETWORK */
01905 
01911 uint GetCompanySettingIndex(const char *name)
01912 {
01913   uint i;
01914   const SettingDesc *sd = GetSettingFromName(name, &i);
01915   assert(sd != NULL && (sd->desc.flags & SGF_PER_COMPANY) != 0);
01916   return i;
01917 }
01918 
01926 bool SetSettingValue(uint index, const char *value, bool force_newgame)
01927 {
01928   const SettingDesc *sd = &_settings[index];
01929   assert(sd->save.conv & SLF_NO_NETWORK_SYNC);
01930 
01931   if (GetVarMemType(sd->save.conv) == SLE_VAR_STRQ) {
01932     char **var = (char**)GetVariableAddress((_game_mode == GM_MENU || force_newgame) ? &_settings_newgame : &_settings_game, &sd->save);
01933     free(*var);
01934     *var = strcmp(value, "(null)") == 0 ? NULL : strdup(value);
01935   } else {
01936     char *var = (char*)GetVariableAddress(NULL, &sd->save);
01937     ttd_strlcpy(var, value, sd->save.length);
01938   }
01939   if (sd->desc.proc != NULL) sd->desc.proc(0);
01940 
01941   return true;
01942 }
01943 
01951 const SettingDesc *GetSettingFromName(const char *name, uint *i)
01952 {
01953   const SettingDesc *sd;
01954 
01955   /* First check all full names */
01956   for (*i = 0, sd = _settings; sd->save.cmd != SL_END; sd++, (*i)++) {
01957     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
01958     if (strcmp(sd->desc.name, name) == 0) return sd;
01959   }
01960 
01961   /* Then check the shortcut variant of the name. */
01962   for (*i = 0, sd = _settings; sd->save.cmd != SL_END; sd++, (*i)++) {
01963     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
01964     const char *short_name = strchr(sd->desc.name, '.');
01965     if (short_name != NULL) {
01966       short_name++;
01967       if (strcmp(short_name, name) == 0) return sd;
01968     }
01969   }
01970 
01971   if (strncmp(name, "company.", 8) == 0) name += 8;
01972   /* And finally the company-based settings */
01973   for (*i = 0, sd = _company_settings; sd->save.cmd != SL_END; sd++, (*i)++) {
01974     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
01975     if (strcmp(sd->desc.name, name) == 0) return sd;
01976   }
01977 
01978   return NULL;
01979 }
01980 
01981 /* Those 2 functions need to be here, else we have to make some stuff non-static
01982  * and besides, it is also better to keep stuff like this at the same place */
01983 void IConsoleSetSetting(const char *name, const char *value, bool force_newgame)
01984 {
01985   uint index;
01986   const SettingDesc *sd = GetSettingFromName(name, &index);
01987 
01988   if (sd == NULL) {
01989     IConsolePrintF(CC_WARNING, "'%s' is an unknown setting.", name);
01990     return;
01991   }
01992 
01993   bool success;
01994   if (sd->desc.cmd == SDT_STRING) {
01995     success = SetSettingValue(index, value, force_newgame);
01996   } else {
01997     uint32 val;
01998     extern bool GetArgumentInteger(uint32 *value, const char *arg);
01999     success = GetArgumentInteger(&val, value);
02000     if (!success) {
02001       IConsolePrintF(CC_ERROR, "'%s' is not an integer.", value);
02002       return;
02003     }
02004 
02005     success = SetSettingValue(index, val, force_newgame);
02006   }
02007 
02008   if (!success) {
02009     if (_network_server) {
02010       IConsoleError("This command/variable is not available during network games.");
02011     } else {
02012       IConsoleError("This command/variable is only available to a network server.");
02013     }
02014   }
02015 }
02016 
02017 void IConsoleSetSetting(const char *name, int value)
02018 {
02019   uint index;
02020   const SettingDesc *sd = GetSettingFromName(name, &index);
02021   assert(sd != NULL);
02022   SetSettingValue(index, value);
02023 }
02024 
02030 void IConsoleGetSetting(const char *name, bool force_newgame)
02031 {
02032   char value[20];
02033   uint index;
02034   const SettingDesc *sd = GetSettingFromName(name, &index);
02035   const void *ptr;
02036 
02037   if (sd == NULL) {
02038     IConsolePrintF(CC_WARNING, "'%s' is an unknown setting.", name);
02039     return;
02040   }
02041 
02042   ptr = GetVariableAddress((_game_mode == GM_MENU || force_newgame) ? &_settings_newgame : &_settings_game, &sd->save);
02043 
02044   if (sd->desc.cmd == SDT_STRING) {
02045     IConsolePrintF(CC_WARNING, "Current value for '%s' is: '%s'", name, (GetVarMemType(sd->save.conv) == SLE_VAR_STRQ) ? *(const char * const *)ptr : (const char *)ptr);
02046   } else {
02047     if (sd->desc.cmd == SDT_BOOLX) {
02048       snprintf(value, sizeof(value), (*(const bool*)ptr != 0) ? "on" : "off");
02049     } else {
02050       snprintf(value, sizeof(value), sd->desc.min < 0 ? "%d" : "%u", (int32)ReadValue(ptr, sd->save.conv));
02051     }
02052 
02053     IConsolePrintF(CC_WARNING, "Current value for '%s' is: '%s' (min: %s%d, max: %u)",
02054       name, value, (sd->desc.flags & SGF_0ISDISABLED) ? "(0) " : "", sd->desc.min, sd->desc.max);
02055   }
02056 }
02057 
02063 void IConsoleListSettings(const char *prefilter)
02064 {
02065   IConsolePrintF(CC_WARNING, "All settings with their current value:");
02066 
02067   for (const SettingDesc *sd = _settings; sd->save.cmd != SL_END; sd++) {
02068     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
02069     if (prefilter != NULL && strstr(sd->desc.name, prefilter) == NULL) continue;
02070     char value[80];
02071     const void *ptr = GetVariableAddress(&GetGameSettings(), &sd->save);
02072 
02073     if (sd->desc.cmd == SDT_BOOLX) {
02074       snprintf(value, lengthof(value), (*(const bool *)ptr != 0) ? "on" : "off");
02075     } else if (sd->desc.cmd == SDT_STRING) {
02076       snprintf(value, sizeof(value), "%s", (GetVarMemType(sd->save.conv) == SLE_VAR_STRQ) ? *(const char * const *)ptr : (const char *)ptr);
02077     } else {
02078       snprintf(value, lengthof(value), sd->desc.min < 0 ? "%d" : "%u", (int32)ReadValue(ptr, sd->save.conv));
02079     }
02080     IConsolePrintF(CC_DEFAULT, "%s = %s", sd->desc.name, value);
02081   }
02082 
02083   IConsolePrintF(CC_WARNING, "Use 'setting' command to change a value");
02084 }
02085 
02092 static void LoadSettings(const SettingDesc *osd, void *object)
02093 {
02094   for (; osd->save.cmd != SL_END; osd++) {
02095     const SaveLoad *sld = &osd->save;
02096     void *ptr = GetVariableAddress(object, sld);
02097 
02098     if (!SlObjectMember(ptr, sld)) continue;
02099     if (IsNumericType(sld->conv)) Write_ValidateSetting(ptr, osd, ReadValue(ptr, sld->conv));
02100   }
02101 }
02102 
02109 static void SaveSettings(const SettingDesc *sd, void *object)
02110 {
02111   /* We need to write the CH_RIFF header, but unfortunately can't call
02112    * SlCalcLength() because we have a different format. So do this manually */
02113   const SettingDesc *i;
02114   size_t length = 0;
02115   for (i = sd; i->save.cmd != SL_END; i++) {
02116     length += SlCalcObjMemberLength(object, &i->save);
02117   }
02118   SlSetLength(length);
02119 
02120   for (i = sd; i->save.cmd != SL_END; i++) {
02121     void *ptr = GetVariableAddress(object, &i->save);
02122     SlObjectMember(ptr, &i->save);
02123   }
02124 }
02125 
02126 static void Load_OPTS()
02127 {
02128   /* Copy over default setting since some might not get loaded in
02129    * a networking environment. This ensures for example that the local
02130    * autosave-frequency stays when joining a network-server */
02131   PrepareOldDiffCustom();
02132   LoadSettings(_gameopt_settings, &_settings_game);
02133   HandleOldDiffCustom(true);
02134 }
02135 
02136 static void Load_PATS()
02137 {
02138   /* Copy over default setting since some might not get loaded in
02139    * a networking environment. This ensures for example that the local
02140    * signal_side stays when joining a network-server */
02141   LoadSettings(_settings, &_settings_game);
02142 }
02143 
02144 static void Check_PATS()
02145 {
02146   LoadSettings(_settings, &_load_check_data.settings);
02147 }
02148 
02149 static void Save_PATS()
02150 {
02151   SaveSettings(_settings, &_settings_game);
02152 }
02153 
02154 void CheckConfig()
02155 {
02156   /*
02157    * Increase old default values for pf_maxdepth and pf_maxlength
02158    * to support big networks.
02159    */
02160   if (_settings_newgame.pf.opf.pf_maxdepth == 16 && _settings_newgame.pf.opf.pf_maxlength == 512) {
02161     _settings_newgame.pf.opf.pf_maxdepth = 48;
02162     _settings_newgame.pf.opf.pf_maxlength = 4096;
02163   }
02164 }
02165 
02166 extern const ChunkHandler _setting_chunk_handlers[] = {
02167   { 'OPTS', NULL,      Load_OPTS, NULL, NULL,       CH_RIFF},
02168   { 'PATS', Save_PATS, Load_PATS, NULL, Check_PATS, CH_RIFF | CH_LAST},
02169 };
02170 
02171 static bool IsSignedVarMemType(VarType vt)
02172 {
02173   switch (GetVarMemType(vt)) {
02174     case SLE_VAR_I8:
02175     case SLE_VAR_I16:
02176     case SLE_VAR_I32:
02177     case SLE_VAR_I64:
02178       return true;
02179   }
02180   return false;
02181 }