Retire apply_scale_factor() and scale.h

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index c8ccaf9c8312d0a3c062ee294a7e519153ef70a3..73ffcfb053057a6a203674dff264702940f55110 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -29,7 +29,6 @@
 #include "evaluate.h"
 #include "material.h"
 #include "pawns.h"
-#include "scale.h"
 #include "thread.h"
 #include "ucioption.h"
 
@@ -207,7 +206,6 @@ namespace {
 
   // Bonuses for enemy's safe checks
   const int QueenContactCheckBonus = 3;
-  const int DiscoveredCheckBonus   = 3;
   const int QueenCheckBonus        = 2;
   const int RookCheckBonus         = 1;
   const int BishopCheckBonus       = 1;
@@ -862,8 +860,7 @@ namespace {
         // value if the other side has a rook or queen.
         if (square_file(s) == FILE_A || square_file(s) == FILE_H)
         {
-            if (   pos.non_pawn_material(Them) <= KnightValueMidgame
-                && pos.piece_count(Them, KNIGHT) <= 1)
+            if (pos.non_pawn_material(Them) <= KnightValueMidgame)
                 ebonus += ebonus / 4;
             else if (pos.pieces(ROOK, QUEEN, Them))
                 ebonus -= ebonus / 4;
@@ -896,7 +893,7 @@ namespace {
             Square s = pop_1st_bit(&b);
             Square queeningSquare = relative_square(c, make_square(square_file(s), RANK_8));
             int d =  square_distance(s, queeningSquare)
-                   - (relative_rank(c, s) == RANK_2) // Double pawn push
+                   - int(relative_rank(c, s) == RANK_2) // Double pawn push
                    - square_distance(pos.king_square(opposite_color(c)), queeningSquare)
                    + int(c != pos.side_to_move());
 
@@ -1077,7 +1074,9 @@ namespace {
     assert(eg_value(v) > -VALUE_INFINITE && eg_value(v) < VALUE_INFINITE);
     assert(ph >= PHASE_ENDGAME && ph <= PHASE_MIDGAME);
 
-    Value ev = apply_scale_factor(eg_value(v), sf[(eg_value(v) > Value(0) ? WHITE : BLACK)]);
+    Value eg = eg_value(v);
+    ScaleFactor f = sf[eg > Value(0) ? WHITE : BLACK];
+    Value ev = Value((eg * f) / int(SCALE_FACTOR_NORMAL));
 
     int result = (mg_value(v) * ph + ev * (128 - ph)) / 128;
     return Value(result & ~(GrainSize - 1));