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[];
83 extern int transparency[];
85 void MarkMenuItem P((char *menuRef, int state));
86 char *CmailMsg P((void));
87 /* Tord: Added the useFEN960 parameter in PositionToFEN() below */
88 char *PositionToFEN P((int move, char* useFEN960, int moveCounts));
89 void AlphaRank P((char *s, int n)); /* [HGM] Shogi move preprocessor */
90 void EditPositionPasteFEN P((char *fen));
91 void TimeDelay P((long ms));
92 void SendMultiLineToICS P(( char *text ));
93 void AnalysisPeriodicEvent P((int force));
94 void SetWhiteToPlayEvent P((void));
95 void SetBlackToPlayEvent P((void));
96 void UploadGameEvent P((void));
97 void InitBackEnd1 P((void));
98 void InitBackEnd2 P((void));
99 int HasPromotionChoice P((int fromX, int fromY, int toX, int toY, char *choice, int sweep));
100 int InPalace P((int row, int column));
101 int PieceForSquare P((int x, int y));
102 int OKToStartUserMove P((int x, int y));
103 void Reset P((int redraw, int init));
104 void ResetGameEvent P((void));
105 Boolean HasPattern P(( const char * text, const char * pattern ));
106 Boolean SearchPattern P(( const char * text, const char * pattern ));
107 int LoadGame P((FILE *f, int n, char *title, int useList));
108 int LoadGameFromFile P((char *filename, int n, char *title, int useList));
109 int CmailLoadGame P((FILE *f, int n, char *title, int useList));
110 int ReloadGame P((int offset));
111 int SaveSelected P((FILE *f, int dummy, char *dummy2));
112 int SaveGame P((FILE *f, int dummy, char *dummy2));
113 int SaveGameToFile P((char *filename, int append));
114 int LoadPosition P((FILE *f, int n, char *title));
115 int ReloadPosition P((int offset));
116 int SavePosition P((FILE *f, int dummy, char *dummy2));
117 int DrawSeekGraph P(());
118 int SeekGraphClick P((ClickType click, int x, int y, int moving));
119 void EditPositionEvent P((void));
120 void FlipViewEvent P((void));
121 void MachineWhiteEvent P((void));
122 void MachineBlackEvent P((void));
123 void TwoMachinesEvent P((void));
124 void EditGameEvent P((void));
125 void TrainingEvent P((void));
126 void IcsClientEvent P((void));
127 void ForwardEvent P((void));
128 void BackwardEvent P((void));
129 void ToEndEvent P((void));
130 void ToStartEvent P((void));
131 void ToNrEvent P((int to));
132 void RevertEvent P((Boolean annotate));
133 void RetractMoveEvent P((void));
134 void MoveNowEvent P((void));
135 void TruncateGameEvent P((void));
136 void PauseEvent P((void));
137 void CallFlagEvent P((void));
138 void ClockClick P((int which));
139 void AcceptEvent P((void));
140 void DeclineEvent P((void));
141 void RematchEvent P((void));
142 void DrawEvent P((void));
143 void AbortEvent P((void));
144 void AdjournEvent P((void));
145 void ResignEvent P((void));
146 void UserAdjudicationEvent P((int result));
147 void StopObservingEvent P((void));
148 void StopExaminingEvent P((void));
149 void PonderNextMoveEvent P((int newState));
150 void ShowThinkingEvent P(());
151 void PeriodicUpdatesEvent P((int newState));
152 void HintEvent P((void));
153 void BookEvent P((void));
154 void AboutGameEvent P((void));
155 void ExitEvent P((int status));
156 char *DefaultFileName P((char *));
157 ChessMove UserMoveTest P((int fromX, int fromY, int toX, int toY, int promoChar, Boolean captureOwn));
158 void UserMoveEvent P((int fromX, int fromY, int toX, int toY, int promoChar));
159 void DecrementClocks P((void));
160 char *TimeString P((long millisec));
161 void AutoPlayGameLoop P((void));
162 void AdjustClock P((Boolean which, int dir));
163 void DisplayBothClocks P((void));
164 void EditPositionMenuEvent P((ChessSquare selection, int x, int y));
165 void DropMenuEvent P((ChessSquare selection, int x, int y));
166 int ParseTimeControl P((char *tc, float ti, int mps));
167 void EscapeExpand(char *p, char *q);
168 void ProcessICSInitScript P((FILE * f));
169 void EditCommentEvent P((void));
170 void ReplaceComment P((int index, char *text));
171 int ReplaceTags P((char *tags, GameInfo *gi));/* returns nonzero on error */
172 void AppendComment P((int index, char *text, Boolean addBraces));
173 void LoadVariation P((int index, char *text));
174 void ReloadCmailMsgEvent P((int unregister));
175 void MailMoveEvent P((void));
176 void EditTagsEvent P((void));
177 void GetMoveListEvent P((void));
178 void ExitAnalyzeMode P((void));
179 int AnalyzeModeEvent P((void));
180 void AnalyzeFileEvent P((void));
181 void MatchEvent P((int mode));
182 void RecentEngineEvent P((int nr));
183 void TypeInEvent P((char first));
184 void TypeInDoneEvent P((char *move));
185 void InitPosition P((int redraw));
186 void NewSettingEvent P((int option, int *feature, char *command, int value));
187 void SettingsMenuIfReady P((void));
188 void DoEcho P((void));
189 void DontEcho P((void));
190 void TidyProgramName P((char *prog, char *host, char *buf));
191 void SetGameInfo P((void));
192 void AskQuestionEvent P((char *title, char *question,
193 char *replyPrefix, char *which));
194 Boolean ParseOneMove P((char *move, int moveNum,
195 ChessMove *moveType, int *fromX, int *fromY,
196 int *toX, int *toY, char *promoChar));
197 char *VariantName P((VariantClass v));
198 VariantClass StringToVariant P((char *e));
199 double u64ToDouble P((u64 value));
200 void OutputChatMessage P((int partner, char *mess));
201 void EditPositionDone P((Boolean fakeRights));
202 Boolean GetArgValue P((char *name));
203 Boolean LoadPV P((int x, int y));
204 Boolean LoadMultiPV P((int x, int y, char *buf, int index, int *start, int *end, int pane));
206 void MovePV P((int x, int y, int h));
207 int PromoScroll P((int x, int y));
208 void EditBookEvent P((void));
209 Boolean DisplayBook P((int moveNr));
210 void SaveToBook P((char *text));
211 void AddBookMove P((char *text));
212 void PlayBookMove P((char *text, int index));
213 void HoverEvent P((int hiX, int hiY, int x, int y));
214 int PackGame P((Board board));
215 Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen, Boolean autoSize));
216 void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar, Board board));
217 void PackMove P((int fromX, int fromY, int toX, int toY, ChessSquare promoPiece));
218 void ics_printf P((char *format, ...));
219 int GetEngineLine P((char *nick, int engine));
220 void AddGameToBook P((int always));
221 void FlushBook P((void));
222 char PieceToChar P((ChessSquare p));
223 int LoadPieceDesc P((char *s));
225 char *StrStr P((char *string, char *match));
226 char *StrCaseStr P((char *string, char *match));
227 char *StrSave P((char *s));
228 char *StrSavePtr P((char *s, char **savePtr));
229 char *SavePart P((char *));
230 char* safeStrCpy P(( char *dst, const char *src, size_t count ));
233 int StrCaseCmp P((char *s1, char *s2));
234 int ToLower P((int c));
235 int ToUpper P((int c));
237 #define StrCaseCmp Stricmp /* Use utility.library functions */
238 #include <proto/utility.h>
241 extern GameInfo gameInfo;
243 /* ICS vars used with backend.c and zippy.c */
244 enum ICS_TYPE { ICS_GENERIC, ICS_ICC, ICS_FICS, ICS_CHESSNET /* not really supported */ };
245 enum ICS_TYPE ics_type;
247 /* pgntags.c prototypes
249 char *PGNTags P((GameInfo *));
250 void PrintPGNTags P((FILE *f, GameInfo *));
251 int ParsePGNTag P((char *, GameInfo *));
252 char *PGNResult P((ChessMove result));
255 /* gamelist.c prototypes
257 /* A game node in the double linked list of games.
259 typedef struct XB_ListGame {
264 unsigned long offset; /* Byte offset of game within file. */
265 GameInfo gameInfo; /* Note that some entries may be NULL. */
269 extern int doubleClick;
270 extern int storedGames;
271 extern int opponentKibitzes;
272 extern ChessSquare gatingPiece;
273 extern List gameList;
274 extern int lastLoadGameNumber;
275 void ClearGameInfo P((GameInfo *));
276 int GameListBuild P((FILE *));
277 void GameListInitGameInfo P((GameInfo *));
278 char *GameListLine P((int, GameInfo *));
279 char * GameListLineFull P(( int, GameInfo *));
280 void InitSearch P((void));
281 int GameContainsPosition P((FILE *f, ListGame *lg));
282 void GLT_TagsToList P(( char * tags ));
283 void GLT_ParseList P((void));
284 int NamesToList P((char *name, char **engines, char **mnemonics, char *group));
285 int CreateTourney P((char *name));
286 char *MakeName P((char *templ));
287 void SwapEngines P((int n));
288 void Substitute P((char *participants, int expunge));
290 extern char* StripHighlight P((char *)); /* returns static data */
291 extern char* StripHighlightAndTitle P((char *)); /* returns static data */
292 extern void ics_update_width P((int new_width));
293 extern Boolean set_cont_sequence P((char *new_seq));
294 extern int wrap P((char *dest, char *src, int count, int width, int *lp));
295 int Explode P((Board board, int fromX, int fromY, int toX, int toY));
297 typedef enum { CheckBox, ComboBox, TextBox, Button, Spin, ResetButton, SaveButton, ListBox, Graph, PopUp,
298 FileName, PathName, Slider, Message, Fractional, Label, Icon,
299 BoxBegin, BoxEnd, BarBegin, BarEnd, DropDown, Break, EndMark, Skip } Control;
301 typedef struct XB_OPT { // [HGM] options: descriptor of UCI-style option
302 int value; // current setting, starts as default
303 int min; // Also used for flags
305 void *handle; // for use by front end
306 void *target; // for use by front end
307 char *textValue; // points to beginning of text value in name field
308 char **choice; // points to array of combo choices in cps->combo
310 char *name; // holds both option name and text value (in allocated memory)
314 typedef struct XB_CPS {
319 char *twoMachinesColor; /* "white\n" or "black\n" */
323 struct XB_CPS *other;
325 char *computerString;
326 int sendTime; /* 0=don't, 1=do, 2=test */
330 int offeredDraw; /* countdown */
332 int useSetboard; /* 0=use "edit"; 1=use "setboard" */
333 int extendedEdit;/* 1=also set holdings with "edit" */
334 int useSAN; /* 0=use coordinate notation; 1=use SAN */
335 int usePing; /* 0=not OK to use ping; 1=OK */
338 int usePlayother;/* 0=not OK to use playother; 1=OK */
339 int useColors; /* 0=avoid obsolete white/black commands; 1=use them */
340 int useUsermove; /* 0=just send move; 1=send "usermove move" */
341 int sendICS; /* 0=don't use "ics" command; 1=do */
342 int sendName; /* 0=don't use "name" command; 1=do */
343 int sdKludge; /* 0=use "sd DEPTH" command; 1=use "depth\nDEPTH" */
344 int stKludge; /* 0=use "st TIME" command; 1=use "level 1 TIME" */
345 int excludeMoves;/* 0=don't use "exclude" command; 1=do */
356 int useFEN960; /* 0=use "KQkq" style FENs, 1=use "HAha" style FENs */
357 int useOOCastle; /* 0="O-O" notation for castling, 1="king capture rook" notation */
358 /* End of additions by Tord */
360 int scoreIsAbsolute; /* [AS] 0=don't know (standard), 1=score is always from white side */
361 int isUCI; /* [AS] 0=no (Winboard), 1=UCI (requires Polyglot) */
362 int hasOwnBookUCI; /* [AS] 0=use GUI or Polyglot book, 1=has own book */
364 /* [HGM] time odds */
365 float timeOdds; /* factor through which we divide time for this engine */
366 int debug; /* [HGM] ignore engine debug lines starting with '#' */
367 int maxNrOfSessions; /* [HGM] secondary TC: max args in 'level' command */
368 int accumulateTC; /* [HGM] secondary TC: how to handle extra sessions */
369 int drawDepth; /* [HGM] egbb: search depth to play egbb draws */
370 int nps; /* [HGM] nps: factor for node count to replace time */
372 int alphaRank; /* [HGM] shogi: engine uses shogi-type coordinates */
373 int maxCores; /* [HGM] SMP: engine understands cores command */
374 int memSize; /* [HGM] memsize: engine understands memory command */
375 char *egtFormats; /* [HGM] EGT: supported tablebase formats */
376 int bookSuspend; /* [HGM] book: go was deferred because of book hit */
377 int pause; /* [HGM] pause: 1=supports it, 2=actually paused */
378 int highlight; /* [HGM] engine wants to get lift and put commands */
379 int nrOptions; /* [HGM] options: remembered option="..." features */
380 #define MAX_OPTIONS 200
381 Option option[MAX_OPTIONS];
383 char *comboList[20*MAX_OPTIONS];
384 char *optionSettings;
385 void *programLogo; /* [HGM] logo: bitmap of the logo */
386 char *fenOverride; /* [HGM} FRC: force FEN casling & ep fields by hand */
387 char userError; /* [HGM] crash: flag to suppress fatal-error messages*/
388 char reload; /* [HGM] options: flag to resend options with xreuse */
391 extern ChessProgramState first, second;
393 /* Search stats from chessprogram */
395 char movelist[2*MSG_SIZ]; /* Last PV we were sent */
396 int depth; /* Current search depth */
397 int nr_moves; /* Total nr of root moves */
398 int moves_left; /* Moves remaining to be searched */
399 char move_name[MOVE_LEN]; /* Current move being searched, if provided */
400 u64 nodes; /* # of nodes searched */
401 int time; /* Search time (centiseconds) */
402 int score; /* Score (centipawns) */
403 int got_only_move; /* If last msg was "(only move)" */
404 int got_fail; /* 0 - nothing, 1 - got "--", 2 - got "++" */
405 int ok_to_send; /* handshaking between send & recv */
406 int line_is_book; /* 1 if movelist is book moves */
407 int seen_stat; /* 1 if we've seen the stat01: line */
410 extern ChessProgramStats_Move pvInfoList[MAX_MOVES];
411 extern Boolean shuffleOpenings;
412 extern ChessProgramStats programStats;
413 extern int opponentKibitzes; // used by wengineo.c
414 extern int errorExitStatus;
415 extern char *recentEngines;
416 extern char *comboLine;
417 extern Boolean partnerUp, twoBoards;
418 extern char engineVariant[];
419 void SaveEngineSettings P((int n));
420 char *EngineDefinedVariant P((ChessProgramState *cps, int n));
421 void SettingsPopUp P((ChessProgramState *cps)); // [HGM] really in front-end, but CPS not known in frontend.h
422 int WaitForEngine P((ChessProgramState *cps, DelayedEventCallback x));
423 void Load P((ChessProgramState *cps, int n));
424 int MultiPV P((ChessProgramState *cps, int kind));
425 void MoveHistorySet P(( char movelist[][2*MOVE_LEN], int first, int last, int current, ChessProgramStats_Move * pvInfo ));
426 void MakeEngineOutputTitle P((void));
427 void LoadTheme P((void));
428 void CreateBookEvent P((void));
429 char *SupportedVariant P((char *list, VariantClass v, int w, int h, int s, int proto, char *engine));
430 char *CollectPieceDescriptors P((void));
431 void RefreshSettingsDialog P((ChessProgramState *cps, int val));
432 void StartChessProgram P((ChessProgramState *cps));
433 void SendToICS P((char *s));
434 int PosFlags P((int n));
437 /* A point in time */
439 long sec; /* Assuming this is >= 32 bits */
440 int ms; /* Assuming this is >= 16 bits */
443 extern TimeMark programStartTime;
445 void GetTimeMark P((TimeMark *));
446 long SubtractTimeMarks P((TimeMark *, TimeMark *));
448 #endif /* XB_BACKEND */