Allow second engine to analyze too

[xboard.git] / backend.c

diff --git a/backend.c b/backend.c
index 8837d97..a463fa7 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -222,6 +222,7 @@ int Pairing P((int nr, int nPlayers, int *w, int *b, int *sync));
 FILE *WriteTourneyFile P((char *results, FILE *f));
 void DisplayTwoMachinesTitle P(());
 static void ExcludeClick P((int index));
+void ToggleSecond P((void));
 
 #ifdef WIN32
        extern void ConsoleCreate();
@@ -4905,6 +4906,7 @@ AnalysisPeriodicEvent (int force)
 
     /* Send . command to Crafty to collect stats */
     SendToProgram(".\n", &first);
+    if(second.analyzing) SendToProgram(".\n", &second);
 
     /* Don't send another until we get a response (this makes
        us stop sending to old Crafty's which don't understand
@@ -5447,10 +5449,11 @@ MultiPV (ChessProgramState *cps)
 }
 
 Boolean
-LoadMultiPV (int x, int y, char *buf, int index, int *start, int *end)
+LoadMultiPV (int x, int y, char *buf, int index, int *start, int *end, int pane)
 {
        int startPV, multi, lineStart, origIndex = index;
        char *p, buf2[MSG_SIZ];
+       ChessProgramState *cps = (pane ? &second : &first);
 
        if(index < 0 || index >= strlen(buf)) return FALSE; // sanity
        lastX = x; lastY = y;
@@ -5462,12 +5465,12 @@ LoadMultiPV (int x, int y, char *buf, int index, int *start, int *end)
        do{ while(buf[index] && buf[index] != '\n') index++;
        } while(buf[index] == '\n' && buf[index+1] == '\\' && buf[index+2] == ' ' && index++); // join kibitzed PV continuation line
        buf[index] = 0;
-       if(lineStart == 0 && gameMode == AnalyzeMode && (multi = MultiPV(&first)) >= 0) {
-               int n = first.option[multi].value;
+       if(lineStart == 0 && gameMode == AnalyzeMode && (multi = MultiPV(cps)) >= 0) {
+               int n = cps->option[multi].value;
                if(origIndex > 17 && origIndex < 24) { if(n>1) n--; } else if(origIndex > index - 6) n++;
                snprintf(buf2, MSG_SIZ, "option MultiPV=%d\n", n);
-               if(first.option[multi].value != n) SendToProgram(buf2, &first);
-               first.option[multi].value = n;
+               if(cps->option[multi].value != n) SendToProgram(buf2, cps);
+               cps->option[multi].value = n;
                *start = *end = 0;
                return FALSE;
        } else if(strstr(buf+lineStart, "exclude:") == buf+lineStart) { // exclude moves clicked
@@ -6852,6 +6855,7 @@ FinishMove (ChessMove moveType, int fromX, int fromY, int toX, int toY, int prom
   }
 
   /* Relay move to ICS or chess engine */
+  if(second.analyzing) ToggleSecond(); // for now, we just stop second analyzing engine
   if (appData.icsActive) {
     if (gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack ||
        gameMode == IcsExamining) {
@@ -13377,8 +13381,25 @@ EditTagsEvent ()
 }
 
 void
+ToggleSecond ()
+{
+  if(second.analyzing) {
+    SendToProgram("exit\n", &second);
+    second.analyzing = FALSE;
+  } else {
+    if (second.pr == NoProc) StartChessProgram(&second);
+    InitChessProgram(&second, FALSE);
+    FeedMovesToProgram(&second, currentMove);
+
+    SendToProgram("analyze\n", &second);
+    second.analyzing = TRUE;
+  }
+}
+
+void
 AnalyzeModeEvent ()
 {
+    if (gameMode == AnalyzeMode) { ToggleSecond(); return; }
     if (appData.noChessProgram || gameMode == AnalyzeMode)
       return;
 
@@ -13979,6 +14000,10 @@ ExitAnalyzeMode ()
       SendToProgram("exit\n", &first);
       first.analyzing = FALSE;
     }
+    if (second.analyzing) {
+      SendToProgram("exit\n", &second);
+      second.analyzing = FALSE;
+    }
     thinkOutput[0] = NULLCHAR;
 }
 
@@ -14561,6 +14586,7 @@ ForwardInner (int target)
     if (gameMode == EditGame || gameMode == AnalyzeMode ||
        gameMode == Training || gameMode == PlayFromGameFile ||
        gameMode == AnalyzeFile) {
+      if(target != currentMove && second.analyzing) ToggleSecond(); // for now, we just stop second analyzing engine
        while (currentMove < target) {
            SendMoveToProgram(currentMove++, &first);
        }
@@ -14665,6 +14691,7 @@ BackwardInner (int target)
     }
     if (gameMode == EditGame || gameMode==AnalyzeMode ||
        gameMode == PlayFromGameFile || gameMode == AnalyzeFile) {
+      if(target != currentMove && second.analyzing) ToggleSecond(); // for now, we just stop second analyzing engine
        while (currentMove > target) {
            if(moveList[currentMove-1][1] == '@' && moveList[currentMove-1][0] == '@') {
                // null move cannot be undone. Reload program with move history before it.