X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fucioption.cpp;h=e1b5ae552900b310f61db930caf85d53eb73fb1e;hp=d700e6d18e840aef53f2abf888fe98baf843ce42;hb=66a64406ca2bf10f903ec5078515f9c825414c3d;hpb=6c64f68ccf18a4ee1d4429abbef5fb4c0e216504

diff --git a/src/ucioption.cpp b/src/ucioption.cpp
index d700e6d1..e1b5ae55 100644
--- a/src/ucioption.cpp
+++ b/src/ucioption.cpp
@@ -1,13 +1,14 @@
 /*
-  Glaurung, a UCI chess playing engine.
-  Copyright (C) 2004-2008 Tord Romstad
+  Stockfish, a UCI chess playing engine derived from Glaurung 2.1
+  Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
+  Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
 
-  Glaurung is free software: you can redistribute it and/or modify
+  Stockfish 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, either version 3 of the License, or
   (at your option) any later version.
 
-  Glaurung is distributed in the hope that it will be useful,
+  Stockfish 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.  See the
   GNU General Public License for more details.
@@ -21,6 +22,7 @@
 //// Includes
 ////
 
+#include <algorithm>
 #include <cassert>
 #include <map>
 #include <string>
@@ -31,13 +33,9 @@
 #include "thread.h"
 #include "ucioption.h"
 
-
-////
-//// Variables
-////
-
-bool Chess960 = false;
-
+using std::string;
+using std::cout;
+using std::endl;
 
 ////
 //// Local definitions
@@ -45,148 +43,149 @@ bool Chess960 = false;
 
 namespace {
 
-  ///
-  /// Types
-  ///
+  enum OptionType { SPIN, COMBO, CHECK, STRING, BUTTON };
 
-  enum OptionType { SPIN, COMBO, CHECK, STRING, BUTTON, OPTION_TYPE_NONE };
+  typedef std::vector<string> StrVector;
 
-  typedef std::vector<std::string> ComboValues;
+  struct Option {
 
-  struct OptionValue
-  {
-    std::string defaultValue, currentValue;
+    string name, defaultValue, currentValue;
     OptionType type;
+    size_t idx;
     int minValue, maxValue;
-    ComboValues comboValues;
+    StrVector comboValues;
 
-    // Helper to convert a bool or an int in a std::string
-    template<typename T> std::string stringify(const T& v);
+    Option();
+    Option(const char* defaultValue, OptionType = STRING);
+    Option(bool defaultValue, OptionType = CHECK);
+    Option(int defaultValue, int minValue, int maxValue);
 
-    OptionValue(); // this is needed to use a std::map
-    OptionValue(const char* defaultValue, OptionType = STRING);
-    OptionValue(bool defaultValue);
-    OptionValue(int defaultValue, int minValue, int maxValue);
+    bool operator<(const Option& o) const { return idx < o.idx; }
   };
 
-  typedef std::map<std::string, OptionValue> Options;
-
-  ///
-  /// Constants
-  ///
-
-  // load-defaults populates the options map with the hard
-  // coded options names and their default values.
-  void load_defaults(Options& options) {
-
-    options["Use Search Log"]                            = OptionValue(false);
-    options["Search Log Filename"]                       = OptionValue("SearchLog.txt");
-    options["Book File"]                                 = OptionValue("book.bin");
-    options["Mobility (Middle Game)"]                    = OptionValue(100, 0, 200);
-    options["Mobility (Endgame)"]                        = OptionValue(100, 0, 200);
-    options["Pawn Structure (Middle Game)"]              = OptionValue(100, 0, 200);
-    options["Pawn Structure (Endgame)"]                  = OptionValue(100, 0, 200);
-    options["Passed Pawns (Middle Game)"]                = OptionValue(100, 0, 200);
-    options["Passed Pawns (Endgame)"]                    = OptionValue(100, 0, 200);
-    options["Aggressiveness"]                            = OptionValue(100, 0, 200);
-    options["Cowardice"]                                 = OptionValue(100, 0, 200);
-    options["King Safety Curve"]                         = OptionValue("Quadratic", COMBO);
-
-       options["King Safety Curve"].comboValues.push_back("Quadratic");
-       options["King Safety Curve"].comboValues.push_back("Linear");  /*, "From File"*/
-
-    options["King Safety Coefficient"]                   = OptionValue(40, 1, 100);
-    options["King Safety X Intercept"]                   = OptionValue(0, 0, 20);
-    options["King Safety Max Slope"]                     = OptionValue(30, 10, 100);
-    options["King Safety Max Value"]                     = OptionValue(500, 100, 1000);
-    options["Queen Contact Check Bonus"]                 = OptionValue(4, 0, 8);
-    options["Rook Contact Check Bonus"]                  = OptionValue(2, 0, 4);
-    options["Queen Check Bonus"]                         = OptionValue(2, 0, 4);
-    options["Rook Check Bonus"]                          = OptionValue(1, 0, 4);
-    options["Bishop Check Bonus"]                        = OptionValue(1, 0, 4);
-    options["Knight Check Bonus"]                        = OptionValue(1, 0, 4);
-    options["Discovered Check Bonus"]                    = OptionValue(3, 0, 8);
-    options["Mate Threat Bonus"]                         = OptionValue(3, 0, 8);
-
-    options["Check Extension (PV nodes)"]                = OptionValue(2, 0, 2);
-    options["Check Extension (non-PV nodes)"]            = OptionValue(1, 0, 2);
-    options["Single Reply Extension (PV nodes)"]         = OptionValue(2, 0, 2);
-    options["Single Reply Extension (non-PV nodes)"]     = OptionValue(2, 0, 2);
-    options["Mate Threat Extension (PV nodes)"]          = OptionValue(2, 0, 2);
-    options["Mate Threat Extension (non-PV nodes)"]      = OptionValue(0, 0, 2);
-    options["Pawn Push to 7th Extension (PV nodes)"]     = OptionValue(1, 0, 2);
-    options["Pawn Push to 7th Extension (non-PV nodes)"] = OptionValue(1, 0, 2);
-    options["Passed Pawn Extension (PV nodes)"]          = OptionValue(1, 0, 2);
-    options["Passed Pawn Extension (non-PV nodes)"]      = OptionValue(0, 0, 2);
-    options["Pawn Endgame Extension (PV nodes)"]         = OptionValue(2, 0, 2);
-    options["Pawn Endgame Extension (non-PV nodes)"]     = OptionValue(2, 0, 2);
-    options["Full Depth Moves (PV nodes)"]               = OptionValue(14, 1, 100);
-    options["Full Depth Moves (non-PV nodes)"]           = OptionValue(3, 1, 100);
-    options["Threat Depth"]                              = OptionValue(5, 0, 100);
-    options["Selective Plies"]                           = OptionValue(7, 0, 10);
-    options["Futility Pruning (Main Search)"]            = OptionValue(true);
-    options["Futility Pruning (Quiescence Search)"]      = OptionValue(true);
-    options["Futility Margin 0"]                         = OptionValue(50, 0, 1000);
-    options["Futility Margin 1"]                         = OptionValue(100, 0, 1000);
-    options["Futility Margin 2"]                         = OptionValue(300, 0, 1000);
-    options["Maximum Razoring Depth"]                    = OptionValue(3, 0, 4);
-    options["Razoring Margin"]                           = OptionValue(300, 150, 600);
-    options["Randomness"]                                = OptionValue(0, 0, 10);
-    options["Minimum Split Depth"]                       = OptionValue(4, 4, 7);
-    options["Maximum Number of Threads per Split Point"] = OptionValue(5, 4, 8);
-    options["Threads"]                                   = OptionValue(1, 1, 8);
-    options["Hash"]                                      = OptionValue(32, 4, 4096);
-    options["Clear Hash"]                                = OptionValue(false);
-    options["Ponder"]                                    = OptionValue(true);
-    options["OwnBook"]                                   = OptionValue(true);
-    options["MultiPV"]                                   = OptionValue(1, 1, 500);
-    options["UCI_ShowCurrLine"]                          = OptionValue(false);
-    options["UCI_Chess960"]                              = OptionValue(false);
+  typedef std::vector<Option> OptionsVector;
+  typedef std::map<string, Option> Options;
+
+  Options options;
+
+  // stringify() converts a value of type T to a std::string
+  template<typename T>
+  string stringify(const T& v) {
+
+     std::ostringstream ss;
+     ss << v;
+     return ss.str();
+  }
+
+  Option::Option() {} // To allow insertion in a std::map
+
+  Option::Option(const char* def, OptionType t)
+  : defaultValue(def), currentValue(def), type(t), idx(options.size()), minValue(0), maxValue(0) {}
+
+  Option::Option(bool def, OptionType t)
+  : defaultValue(stringify(def)), currentValue(stringify(def)), type(t), idx(options.size()), minValue(0), maxValue(0) {}
+
+  Option::Option(int def, int minv, int maxv)
+  : defaultValue(stringify(def)), currentValue(stringify(def)), type(SPIN), idx(options.size()), minValue(minv), maxValue(maxv) {}
+
+  // load_defaults() populates the options map with the hard
+  // coded names and default values.
+
+  void load_defaults(Options& o) {
+
+    o["Use Search Log"] = Option(false);
+    o["Search Log Filename"] = Option("SearchLog.txt");
+    o["Book File"] = Option("book.bin");
+    o["Best Book Move"] = Option(false);
+    o["Mobility (Middle Game)"] = Option(100, 0, 200);
+    o["Mobility (Endgame)"] = Option(100, 0, 200);
+    o["Pawn Structure (Middle Game)"] = Option(100, 0, 200);
+    o["Pawn Structure (Endgame)"] = Option(100, 0, 200);
+    o["Passed Pawns (Middle Game)"] = Option(100, 0, 200);
+    o["Passed Pawns (Endgame)"] = Option(100, 0, 200);
+    o["Space"] = Option(100, 0, 200);
+    o["Aggressiveness"] = Option(100, 0, 200);
+    o["Cowardice"] = Option(100, 0, 200);
+    o["Check Extension (PV nodes)"] = Option(2, 0, 2);
+    o["Check Extension (non-PV nodes)"] = Option(1, 0, 2);
+    o["Single Evasion Extension (PV nodes)"] = Option(2, 0, 2);
+    o["Single Evasion Extension (non-PV nodes)"] = Option(2, 0, 2);
+    o["Mate Threat Extension (PV nodes)"] = Option(2, 0, 2);
+    o["Mate Threat Extension (non-PV nodes)"] = Option(2, 0, 2);
+    o["Pawn Push to 7th Extension (PV nodes)"] = Option(1, 0, 2);
+    o["Pawn Push to 7th Extension (non-PV nodes)"] = Option(1, 0, 2);
+    o["Passed Pawn Extension (PV nodes)"] = Option(1, 0, 2);
+    o["Passed Pawn Extension (non-PV nodes)"] = Option(0, 0, 2);
+    o["Pawn Endgame Extension (PV nodes)"] = Option(2, 0, 2);
+    o["Pawn Endgame Extension (non-PV nodes)"] = Option(2, 0, 2);
+    o["Minimum Split Depth"] = Option(4, 4, 7);
+    o["Maximum Number of Threads per Split Point"] = Option(5, 4, 8);
+    o["Threads"] = Option(1, 1, MAX_THREADS);
+    o["Hash"] = Option(32, 4, 8192);
+    o["Clear Hash"] = Option(false, BUTTON);
+    o["New Game"] = Option(false, BUTTON);
+    o["Ponder"] = Option(true);
+    o["OwnBook"] = Option(true);
+    o["MultiPV"] = Option(1, 1, 500);
+    o["Emergency Move Horizon"] = Option(40, 0, 50);
+    o["Emergency Base Time"] = Option(200, 0, 60000);
+    o["Emergency Move Time"] = Option(70, 0, 5000);
+    o["Minimum Thinking Time"] = Option(20, 0, 5000);
+    o["UCI_Chess960"] = Option(false); // Just a dummy but needed by GUIs
+    o["UCI_AnalyseMode"] = Option(false);
+
+    // Any option should know its name so to be easily printed
+    for (Options::iterator it = o.begin(); it != o.end(); ++it)
+        it->second.name = it->first;
   }
 
+  // get_option_value() implements the various get_option_value_<type>
+  // functions defined later.
 
-  ///
-  /// Variables
-  ///
+  template<typename T>
+  T get_option_value(const string& optionName) {
 
-  Options options;
+      T ret = T();
+      if (options.find(optionName) == options.end())
+          return ret;
+
+      std::istringstream ss(options[optionName].currentValue);
+      ss >> ret;
+      return ret;
+  }
+
+  // Specialization for std::string where instruction 'ss >> ret'
+  // would erroneusly tokenize a string with spaces.
+  template<>
+  string get_option_value<string>(const string& optionName) {
 
-  // Local functions
-  template<typename T> T get_option_value(const std::string& optionName);
+      if (options.find(optionName) == options.end())
+          return string();
+
+      return options[optionName].currentValue;
+  }
 
 }
 
-////
-//// Functions
-////
 
-/// init_uci_options() initializes the UCI options.  Currently, the only
-/// thing this function does is to initialize the default value of the
-/// "Threads" parameter to the number of available CPU cores.
+/// init_uci_options() initializes the UCI options. Currently, the only thing
+/// this function does is to initialize the default value of "Threads" and
+/// "Minimum Split Depth" parameters according to the number of CPU cores.
 
 void init_uci_options() {
 
   load_defaults(options);
 
-  // Limit the default value of "Threads" to 7 even if we have 8 CPU cores.
-  // According to Ken Dail's tests, Glaurung plays much better with 7 than
-  // with 8 threads.  This is weird, but it is probably difficult to find out
-  // why before I have a 8-core computer to experiment with myself.
   assert(options.find("Threads") != options.end());
+  assert(options.find("Minimum Split Depth") != options.end());
 
-  options["Threads"].defaultValue = Min(cpu_count(), 7);
-  options["Threads"].currentValue = Min(cpu_count(), 7);
+  Option& thr = options["Threads"];
+  Option& msd = options["Minimum Split Depth"];
 
-  // Increase the minimum split depth when the number of CPUs is big.
-  // It would probably be better to let this depend on the number of threads
-  // instead.
-  if(cpu_count() > 4)
-  {
-      assert(options.find("Minimum Split Depth") != options.end());
+  thr.defaultValue = thr.currentValue = stringify(cpu_count());
 
-      options["Minimum Split Depth"].defaultValue = 6;
-      options["Minimum Split Depth"].currentValue = 6;
-  }
+  if (cpu_count() >= 8)
+      msd.defaultValue = msd.currentValue = stringify(7);
 }
 
 
@@ -195,37 +194,47 @@ void init_uci_options() {
 
 void print_uci_options() {
 
-  static const char optionTypeName[][16] = {
+  const char OptTypeName[][16] = {
     "spin", "combo", "check", "string", "button"
   };
 
-  for (Options::iterator it = options.begin(); it != options.end(); ++it)
-  {
-      const OptionValue& o = it->second;
+  // Build up a vector out of the options map and sort it according to idx
+  // field, that is the chronological insertion order in options map.
+  OptionsVector vec;
+  for (Options::const_iterator it = options.begin(); it != options.end(); ++it)
+      vec.push_back(it->second);
 
-      std::cout << "option name " << it->first
-                << " type "       << optionTypeName[o.type];
+  std::sort(vec.begin(), vec.end());
 
-      if (o.type != BUTTON)
-      {
-          std::cout << " default " << o.defaultValue;
+  for (OptionsVector::const_iterator it = vec.begin(); it != vec.end(); ++it)
+  {
+      cout << "\noption name " << it->name << " type " << OptTypeName[it->type];
 
-          if (o.type == SPIN)
-              std::cout << " min " << o.minValue
-                        << " max " << o.maxValue;
+      if (it->type == BUTTON)
+          continue;
 
-          else if (o.type == COMBO)
-              for(ComboValues::size_type i = 0; i < o.comboValues.size(); ++i)
-                  std::cout << " var " << o.comboValues[i];
+      if (it->type == CHECK)
+          cout << " default " << (it->defaultValue == "1" ? "true" : "false");
+      else
+          cout << " default " << it->defaultValue;
+
+      if (it->type == SPIN)
+          cout << " min " << it->minValue << " max " << it->maxValue;
+      else if (it->type == COMBO)
+      {
+          StrVector::const_iterator itc;
+          for (itc = it->comboValues.begin(); itc != it->comboValues.end(); ++itc)
+              cout << " var " << *itc;
       }
-      std::cout << std::endl;
   }
+  cout << endl;
 }
 
+
 /// get_option_value_bool() returns the current value of a UCI parameter of
 /// type "check".
 
-bool get_option_value_bool(const std::string& optionName) {
+bool get_option_value_bool(const string& optionName) {
 
   return get_option_value<bool>(optionName);
 }
@@ -236,98 +245,75 @@ bool get_option_value_bool(const std::string& optionName) {
 /// it could also be used with a "combo" parameter, where all the available
 /// values are integers.
 
-int get_option_value_int(const std::string& optionName) {
+int get_option_value_int(const string& optionName) {
 
   return get_option_value<int>(optionName);
 }
 
 
 /// get_option_value_string() returns the current value of a UCI parameter as
-/// a string.  It is used with parameters of type "combo" and "string".
+/// a string. It is used with parameters of type "combo" and "string".
 
-const std::string get_option_value_string(const std::string& optionName) {
+string get_option_value_string(const string& optionName) {
 
-   return get_option_value<std::string>(optionName);
+   return get_option_value<string>(optionName);
 }
 
 
-/// button_was_pressed() tests whether a UCI parameter of type "button" has
-/// been selected since the last time the function was called.
+/// set_option_value() inserts a new value for a UCI parameter
 
-bool button_was_pressed(const std::string& buttonName) {
+void set_option_value(const string& name, const string& value) {
 
-  if (get_option_value<bool>(buttonName))
+  if (options.find(name) == options.end())
   {
-    set_option_value(buttonName, "false");
-    return true;
+      cout << "No such option: " << name << endl;
+      return;
   }
 
-  return false;
-}
-
+  // UCI protocol uses "true" and "false" instead of "1" and "0", so convert
+  // value according to standard C++ convention before to store it.
+  string v(value);
+  if (v == "true")
+      v = "1";
+  else if (v == "false")
+      v = "0";
 
-/// set_option_value() inserts a new value for a UCI parameter.  Note that
-/// the function does not check that the new value is legal for the given
-/// parameter:  This is assumed to be the responsibility of the GUI.
+  // Normally it's up to the GUI to check for option's limits,
+  // but we could receive the new value directly from the user
+  // by teminal window. So let's check the bounds anyway.
+  Option& opt = options[name];
 
-void set_option_value(const std::string& optionName,
-                      const std::string& newValue) {
+  if (opt.type == CHECK && v != "0" && v != "1")
+      return;
 
-  if (options.find(optionName) != options.end())
-      options[optionName].currentValue = newValue;
-  else
-      std::cout << "No such option: " << optionName << std::endl;
+  else if (opt.type == SPIN)
+  {
+      int val = atoi(v.c_str());
+      if (val < opt.minValue || val > opt.maxValue)
+          return;
+  }
+  opt.currentValue = v;
 }
 
 
 /// push_button() is used to tell the engine that a UCI parameter of type
 /// "button" has been selected:
 
-void push_button(const std::string& buttonName) {
+void push_button(const string& buttonName) {
 
   set_option_value(buttonName, "true");
 }
 
 
-namespace {
-
-    // methods and c'tors of OptionValue class.
-
-    template<typename T>
-    std::string OptionValue::stringify(const T& v)
-    {
-        std::ostringstream ss;
-        ss << v;
-
-        return ss.str();
-    }
-
-    OptionValue::OptionValue() {}
-
-    OptionValue::OptionValue(const char* def, OptionType t)
-    : defaultValue(def), currentValue(def), type(t), minValue(0), maxValue(0) {}
-
-    OptionValue::OptionValue(bool def)
-    : defaultValue(stringify(def)), currentValue(stringify(def)), type(CHECK), minValue(0), maxValue(0) {}
-
-    OptionValue::OptionValue(int def, int minv, int maxv)
-    : defaultValue(stringify(def)), currentValue(stringify(def)), type(SPIN), minValue(minv), maxValue(maxv) {}
-
-    // get_option_value is the implementation of the various
-    // get_option_value_<type>, because only the option value
-    // type changes a template is the proper solution.
-
-    template<typename T>
-    T get_option_value(const std::string& optionName) {
+/// button_was_pressed() tests whether a UCI parameter of type "button" has
+/// been selected since the last time the function was called, in this case
+/// it also resets the button.
 
-        T ret;
+bool button_was_pressed(const string& buttonName) {
 
-        if (options.find(optionName) != options.end())
-        {
-            std::istringstream ss(options[optionName].currentValue);
-            ss >> ret;
-        }
-        return ret;
-    }
+  if (!get_option_value<bool>(buttonName))
+      return false;
 
+  set_option_value(buttonName, "false");
+  return true;
 }