2 * backend.h -- Interface exported by XBoard back end
4 * Copyright 1991 by Digital Equipment Corporation, Maynard,
7 * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
8 * 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free
9 * Software Foundation, Inc.
11 * Enhancements Copyright 2005 Alessandro Scotti
13 * The following terms apply to Digital Equipment Corporation's copyright
15 * ------------------------------------------------------------------------
18 * Permission to use, copy, modify, and distribute this software and its
19 * documentation for any purpose and without fee is hereby granted,
20 * provided that the above copyright notice appear in all copies and that
21 * both that copyright notice and this permission notice appear in
22 * supporting documentation, and that the name of Digital not be
23 * used in advertising or publicity pertaining to distribution of the
24 * software without specific, written prior permission.
26 * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
27 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
28 * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
29 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
30 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
31 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
33 * ------------------------------------------------------------------------
35 * The following terms apply to the enhanced version of XBoard
36 * distributed by the Free Software Foundation:
37 * ------------------------------------------------------------------------
39 * GNU XBoard is free software: you can redistribute it and/or modify
40 * it under the terms of the GNU General Public License as published by
41 * the Free Software Foundation, either version 3 of the License, or (at
42 * your option) any later version.
44 * GNU XBoard is distributed in the hope that it will be useful, but
45 * WITHOUT ANY WARRANTY; without even the implied warranty of
46 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
47 * General Public License for more details.
49 * You should have received a copy of the GNU General Public License
50 * along with this program. If not, see http://www.gnu.org/licenses/. *
52 *------------------------------------------------------------------------
53 ** See the file ChangeLog for a revision history. */
60 typedef int (*FileProc) P((FILE *f, int n, char *title));
62 extern char *wbOptions;
63 extern int gotPremove;
64 extern GameMode gameMode;
67 extern int pausing, cmailMsgLoaded, flipView, mute;
68 extern char white_holding[], black_holding[];
69 extern int currentMove, backwardMostMove, forwardMostMove;
70 extern int blackPlaysFirst;
72 extern char* programVersion;
73 extern Board boards[];
74 extern char marker[BOARD_RANKS][BOARD_FILES];
75 extern char lastMsg[MSG_SIZ];
76 extern Boolean bookUp;
77 extern Boolean addToBookFlag;
78 extern int tinyLayout, smallLayout;
79 extern Boolean mcMode;
81 extern char variantError[];
82 extern char lastTalker[];
84 void MarkMenuItem P((char *menuRef, int state));
85 char *CmailMsg P((void));
86 /* Tord: Added the useFEN960 parameter in PositionToFEN() below */
87 char *PositionToFEN P((int move, char* useFEN960, int moveCounts));
88 void AlphaRank P((char *s, int n)); /* [HGM] Shogi move preprocessor */
89 void EditPositionPasteFEN P((char *fen));
90 void TimeDelay P((long ms));
91 void SendMultiLineToICS P(( char *text ));
92 void AnalysisPeriodicEvent P((int force));
93 void SetWhiteToPlayEvent P((void));
94 void SetBlackToPlayEvent P((void));
95 void UploadGameEvent P((void));
96 void InitBackEnd1 P((void));
97 void InitBackEnd2 P((void));
98 int HasPromotionChoice P((int fromX, int fromY, int toX, int toY, char *choice, int sweep));
99 int InPalace P((int row, int column));
100 int PieceForSquare P((int x, int y));
101 int OKToStartUserMove P((int x, int y));
102 void Reset P((int redraw, int init));
103 void ResetGameEvent P((void));
104 Boolean HasPattern P(( const char * text, const char * pattern ));
105 Boolean SearchPattern P(( const char * text, const char * pattern ));
106 int LoadGame P((FILE *f, int n, char *title, int useList));
107 int LoadGameFromFile P((char *filename, int n, char *title, int useList));
108 int CmailLoadGame P((FILE *f, int n, char *title, int useList));
109 int ReloadGame P((int offset));
110 int SaveSelected P((FILE *f, int dummy, char *dummy2));
111 int SaveGame P((FILE *f, int dummy, char *dummy2));
112 int SaveGameToFile P((char *filename, int append));
113 int LoadPosition P((FILE *f, int n, char *title));
114 int ReloadPosition P((int offset));
115 int SavePosition P((FILE *f, int dummy, char *dummy2));
116 int DrawSeekGraph P(());
117 int SeekGraphClick P((ClickType click, int x, int y, int moving));
118 void EditPositionEvent P((void));
119 void FlipViewEvent P((void));
120 void MachineWhiteEvent P((void));
121 void MachineBlackEvent P((void));
122 void TwoMachinesEvent P((void));
123 void EditGameEvent P((void));
124 void TrainingEvent P((void));
125 void IcsClientEvent P((void));
126 void ForwardEvent P((void));
127 void BackwardEvent P((void));
128 void ToEndEvent P((void));
129 void ToStartEvent P((void));
130 void ToNrEvent P((int to));
131 void RevertEvent P((Boolean annotate));
132 void RetractMoveEvent P((void));
133 void MoveNowEvent P((void));
134 void TruncateGameEvent P((void));
135 void PauseEvent P((void));
136 void CallFlagEvent P((void));
137 void ClockClick P((int which));
138 void AcceptEvent P((void));
139 void DeclineEvent P((void));
140 void RematchEvent P((void));
141 void DrawEvent P((void));
142 void AbortEvent P((void));
143 void AdjournEvent P((void));
144 void ResignEvent P((void));
145 void UserAdjudicationEvent P((int result));
146 void StopObservingEvent P((void));
147 void StopExaminingEvent P((void));
148 void PonderNextMoveEvent P((int newState));
149 void ShowThinkingEvent P(());
150 void PeriodicUpdatesEvent P((int newState));
151 void HintEvent P((void));
152 void BookEvent P((void));
153 void AboutGameEvent P((void));
154 void ExitEvent P((int status));
155 char *DefaultFileName P((char *));
156 ChessMove UserMoveTest P((int fromX, int fromY, int toX, int toY, int promoChar, Boolean captureOwn));
157 void UserMoveEvent P((int fromX, int fromY, int toX, int toY, int promoChar));
158 void DecrementClocks P((void));
159 char *TimeString P((long millisec));
160 void AutoPlayGameLoop P((void));
161 void AdjustClock P((Boolean which, int dir));
162 void DisplayBothClocks P((void));
163 void EditPositionMenuEvent P((ChessSquare selection, int x, int y));
164 void DropMenuEvent P((ChessSquare selection, int x, int y));
165 int ParseTimeControl P((char *tc, float ti, int mps));
166 void EscapeExpand(char *p, char *q);
167 void ProcessICSInitScript P((FILE * f));
168 void EditCommentEvent P((void));
169 void ReplaceComment P((int index, char *text));
170 int ReplaceTags P((char *tags, GameInfo *gi));/* returns nonzero on error */
171 void AppendComment P((int index, char *text, Boolean addBraces));
172 void LoadVariation P((int index, char *text));
173 void ReloadCmailMsgEvent P((int unregister));
174 void MailMoveEvent P((void));
175 void EditTagsEvent P((void));
176 void GetMoveListEvent P((void));
177 void ExitAnalyzeMode P((void));
178 int AnalyzeModeEvent P((void));
179 void AnalyzeFileEvent P((void));
180 void MatchEvent P((int mode));
181 void RecentEngineEvent P((int nr));
182 void TypeInEvent P((char first));
183 void TypeInDoneEvent P((char *move));
184 void InitPosition P((int redraw));
185 void NewSettingEvent P((int option, int *feature, char *command, int value));
186 void SettingsMenuIfReady P((void));
187 void DoEcho P((void));
188 void DontEcho P((void));
189 void TidyProgramName P((char *prog, char *host, char *buf));
190 void SetGameInfo P((void));
191 void AskQuestionEvent P((char *title, char *question,
192 char *replyPrefix, char *which));
193 Boolean ParseOneMove P((char *move, int moveNum,
194 ChessMove *moveType, int *fromX, int *fromY,
195 int *toX, int *toY, char *promoChar));
196 char *VariantName P((VariantClass v));
197 VariantClass StringToVariant P((char *e));
198 double u64ToDouble P((u64 value));
199 void OutputChatMessage P((int partner, char *mess));
200 void EditPositionDone P((Boolean fakeRights));
201 Boolean GetArgValue P((char *name));
202 Boolean LoadPV P((int x, int y));
203 Boolean LoadMultiPV P((int x, int y, char *buf, int index, int *start, int *end, int pane));
205 void MovePV P((int x, int y, int h));
206 int PromoScroll P((int x, int y));
207 void EditBookEvent P((void));
208 Boolean DisplayBook P((int moveNr));
209 void SaveToBook P((char *text));
210 void AddBookMove P((char *text));
211 void PlayBookMove P((char *text, int index));
212 void HoverEvent P((int hiX, int hiY, int x, int y));
213 int PackGame P((Board board));
214 Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen, Boolean autoSize));
215 void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar, Board board));
216 void PackMove P((int fromX, int fromY, int toX, int toY, ChessSquare promoPiece));
217 void ics_printf P((char *format, ...));
218 int GetEngineLine P((char *nick, int engine));
219 void AddGameToBook P((int always));
220 void FlushBook P((void));
221 char PieceToChar P((ChessSquare p));
222 int LoadPieceDesc P((char *s));
224 char *StrStr P((char *string, char *match));
225 char *StrCaseStr P((char *string, char *match));
226 char *StrSave P((char *s));
227 char *StrSavePtr P((char *s, char **savePtr));
228 char *SavePart P((char *));
229 char* safeStrCpy P(( char *dst, const char *src, size_t count ));
232 int StrCaseCmp P((char *s1, char *s2));
233 int ToLower P((int c));
234 int ToUpper P((int c));
236 #define StrCaseCmp Stricmp /* Use utility.library functions */
237 #include <proto/utility.h>
240 extern GameInfo gameInfo;
242 /* ICS vars used with backend.c and zippy.c */
243 enum ICS_TYPE { ICS_GENERIC, ICS_ICC, ICS_FICS, ICS_CHESSNET /* not really supported */ };
244 enum ICS_TYPE ics_type;
246 /* pgntags.c prototypes
248 char *PGNTags P((GameInfo *));
249 void PrintPGNTags P((FILE *f, GameInfo *));
250 int ParsePGNTag P((char *, GameInfo *));
251 char *PGNResult P((ChessMove result));
254 /* gamelist.c prototypes
256 /* A game node in the double linked list of games.
258 typedef struct XB_ListGame {
263 unsigned long offset; /* Byte offset of game within file. */
264 GameInfo gameInfo; /* Note that some entries may be NULL. */
268 extern int doubleClick;
269 extern int storedGames;
270 extern int opponentKibitzes;
271 extern ChessSquare gatingPiece;
272 extern List gameList;
273 extern int lastLoadGameNumber;
274 void ClearGameInfo P((GameInfo *));
275 int GameListBuild P((FILE *));
276 void GameListInitGameInfo P((GameInfo *));
277 char *GameListLine P((int, GameInfo *));
278 char * GameListLineFull P(( int, GameInfo *));
279 void InitSearch P((void));
280 int GameContainsPosition P((FILE *f, ListGame *lg));
281 void GLT_TagsToList P(( char * tags ));
282 void GLT_ParseList P((void));
283 int NamesToList P((char *name, char **engines, char **mnemonics, char *group));
284 int CreateTourney P((char *name));
285 char *MakeName P((char *templ));
286 void SwapEngines P((int n));
287 void Substitute P((char *participants, int expunge));
289 extern char* StripHighlight P((char *)); /* returns static data */
290 extern char* StripHighlightAndTitle P((char *)); /* returns static data */
291 extern void ics_update_width P((int new_width));
292 extern Boolean set_cont_sequence P((char *new_seq));
293 extern int wrap P((char *dest, char *src, int count, int width, int *lp));
294 int Explode P((Board board, int fromX, int fromY, int toX, int toY));
296 typedef enum { CheckBox, ComboBox, TextBox, Button, Spin, ResetButton, SaveButton, ListBox, Graph, PopUp,
297 FileName, PathName, Slider, Message, Fractional, Label, Icon,
298 BoxBegin, BoxEnd, BarBegin, BarEnd, DropDown, Break, EndMark, Skip } Control;
300 typedef struct XB_OPT { // [HGM] options: descriptor of UCI-style option
301 int value; // current setting, starts as default
302 int min; // Also used for flags
304 void *handle; // for use by front end
305 void *target; // for use by front end
306 char *textValue; // points to beginning of text value in name field
307 char **choice; // points to array of combo choices in cps->combo
309 char *name; // holds both option name and text value (in allocated memory)
313 typedef struct XB_CPS {
318 char *twoMachinesColor; /* "white\n" or "black\n" */
322 struct XB_CPS *other;
324 char *computerString;
325 int sendTime; /* 0=don't, 1=do, 2=test */
329 int offeredDraw; /* countdown */
331 int useSetboard; /* 0=use "edit"; 1=use "setboard" */
332 int extendedEdit;/* 1=also set holdings with "edit" */
333 int useSAN; /* 0=use coordinate notation; 1=use SAN */
334 int usePing; /* 0=not OK to use ping; 1=OK */
337 int usePlayother;/* 0=not OK to use playother; 1=OK */
338 int useColors; /* 0=avoid obsolete white/black commands; 1=use them */
339 int useUsermove; /* 0=just send move; 1=send "usermove move" */
340 int sendICS; /* 0=don't use "ics" command; 1=do */
341 int sendName; /* 0=don't use "name" command; 1=do */
342 int sdKludge; /* 0=use "sd DEPTH" command; 1=use "depth\nDEPTH" */
343 int stKludge; /* 0=use "st TIME" command; 1=use "level 1 TIME" */
344 int excludeMoves;/* 0=don't use "exclude" command; 1=do */
355 int useFEN960; /* 0=use "KQkq" style FENs, 1=use "HAha" style FENs */
356 int useOOCastle; /* 0="O-O" notation for castling, 1="king capture rook" notation */
357 /* End of additions by Tord */
359 int scoreIsAbsolute; /* [AS] 0=don't know (standard), 1=score is always from white side */
360 int isUCI; /* [AS] 0=no (Winboard), 1=UCI (requires Polyglot) */
361 int hasOwnBookUCI; /* [AS] 0=use GUI or Polyglot book, 1=has own book */
363 /* [HGM] time odds */
364 float timeOdds; /* factor through which we divide time for this engine */
365 int debug; /* [HGM] ignore engine debug lines starting with '#' */
366 int maxNrOfSessions; /* [HGM] secondary TC: max args in 'level' command */
367 int accumulateTC; /* [HGM] secondary TC: how to handle extra sessions */
368 int drawDepth; /* [HGM] egbb: search depth to play egbb draws */
369 int nps; /* [HGM] nps: factor for node count to replace time */
371 int alphaRank; /* [HGM] shogi: engine uses shogi-type coordinates */
372 int maxCores; /* [HGM] SMP: engine understands cores command */
373 int memSize; /* [HGM] memsize: engine understands memory command */
374 char *egtFormats; /* [HGM] EGT: supported tablebase formats */
375 int bookSuspend; /* [HGM] book: go was deferred because of book hit */
376 int pause; /* [HGM] pause: 1=supports it, 2=actually paused */
377 int highlight; /* [HGM] engine wants to get lift and put commands */
378 int nrOptions; /* [HGM] options: remembered option="..." features */
379 #define MAX_OPTIONS 200
380 Option option[MAX_OPTIONS];
382 char *comboList[20*MAX_OPTIONS];
383 char *optionSettings;
384 void *programLogo; /* [HGM] logo: bitmap of the logo */
385 char *fenOverride; /* [HGM} FRC: force FEN casling & ep fields by hand */
386 char userError; /* [HGM] crash: flag to suppress fatal-error messages*/
387 char reload; /* [HGM] options: flag to resend options with xreuse */
390 extern ChessProgramState first, second;
392 /* Search stats from chessprogram */
394 char movelist[2*MSG_SIZ]; /* Last PV we were sent */
395 int depth; /* Current search depth */
396 int nr_moves; /* Total nr of root moves */
397 int moves_left; /* Moves remaining to be searched */
398 char move_name[MOVE_LEN]; /* Current move being searched, if provided */
399 u64 nodes; /* # of nodes searched */
400 int time; /* Search time (centiseconds) */
401 int score; /* Score (centipawns) */
402 int got_only_move; /* If last msg was "(only move)" */
403 int got_fail; /* 0 - nothing, 1 - got "--", 2 - got "++" */
404 int ok_to_send; /* handshaking between send & recv */
405 int line_is_book; /* 1 if movelist is book moves */
406 int seen_stat; /* 1 if we've seen the stat01: line */
409 extern ChessProgramStats_Move pvInfoList[MAX_MOVES];
410 extern Boolean shuffleOpenings;
411 extern ChessProgramStats programStats;
412 extern int opponentKibitzes; // used by wengineo.c
413 extern int errorExitStatus;
414 extern char *recentEngines;
415 extern char *comboLine;
416 extern Boolean partnerUp, twoBoards;
417 extern char engineVariant[];
418 char *EngineDefinedVariant P((ChessProgramState *cps, int n));
419 void SettingsPopUp P((ChessProgramState *cps)); // [HGM] really in front-end, but CPS not known in frontend.h
420 int WaitForEngine P((ChessProgramState *cps, DelayedEventCallback x));
421 void Load P((ChessProgramState *cps, int n));
422 int MultiPV P((ChessProgramState *cps, int kind));
423 void MoveHistorySet P(( char movelist[][2*MOVE_LEN], int first, int last, int current, ChessProgramStats_Move * pvInfo ));
424 void MakeEngineOutputTitle P((void));
425 void LoadTheme P((void));
426 void CreateBookEvent P((void));
427 char *SupportedVariant P((char *list, VariantClass v, int w, int h, int s, int proto, char *engine));
428 char *CollectPieceDescriptors P((void));
429 void RefreshSettingsDialog P((ChessProgramState *cps, int val));
430 void StartChessProgram P((ChessProgramState *cps));
431 void SendToICS P((char *s));
432 int PosFlags P((int n));
435 /* A point in time */
437 long sec; /* Assuming this is >= 32 bits */
438 int ms; /* Assuming this is >= 16 bits */
441 extern TimeMark programStartTime;
443 void GetTimeMark P((TimeMark *));
444 long SubtractTimeMarks P((TimeMark *, TimeMark *));
446 #endif /* XB_BACKEND */