DroidFish: Implemented DTZ/WDL tablebase hints in the GUI when only syzygy tablebases are available.

2025-12-11 08:32:41 +01:00 · 2014-10-12 00:21:10 +00:00
parent 0545004d3a
commit aa95d57e7b
33 changed files with 5312 additions and 97 deletions
--- a/DroidFish/jni/rtb/rtb-core.hpp
+++ b/DroidFish/jni/rtb/rtb-core.hpp
@@ -0,0 +1,142 @@
+/*
+  Copyright (c) 2011-2013 Ronald de Man
+*/
+
+#ifndef RTB_CORE_HPP_
+#define RTB_CORE_HPP_
+
+#ifndef __WIN32__
+#define SEP_CHAR ':'
+#define FD int
+#define FD_ERR -1
+#else
+#include <windows.h>
+#define SEP_CHAR ';'
+#define FD HANDLE
+#define FD_ERR INVALID_HANDLE_VALUE
+#endif
+
+#include <stdint.h>
+#include <atomic>
+
+#define WDLSUFFIX ".rtbw"
+#define DTZSUFFIX ".rtbz"
+#define TBPIECES 6
+
+#define WDL_MAGIC 0x5d23e871
+#define DTZ_MAGIC 0xa50c66d7
+
+#define TBHASHBITS 11
+
+typedef unsigned char ubyte;
+typedef unsigned short ushort;
+
+struct TBHashEntry;
+
+typedef uint64_t base_t;
+
+struct PairsData {
+    char *indextable;
+    ushort *sizetable;
+    ubyte *data;
+    ushort *offset;
+    ubyte *symlen;
+    ubyte *sympat;
+    int blocksize;
+    int idxbits;
+    int min_len;
+    base_t base[1]; // C++ complains about base[]...
+};
+
+struct TBEntry {
+    char *data;
+    uint64_t key;
+    uint64_t mapping;
+    std::atomic<ubyte> ready;
+    ubyte num;
+    ubyte symmetric;
+    ubyte has_pawns;
+} __attribute__((__may_alias__));
+
+struct TBEntry_piece {
+    char *data;
+    uint64_t key;
+    uint64_t mapping;
+    std::atomic<ubyte> ready;
+    ubyte num;
+    ubyte symmetric;
+    ubyte has_pawns;
+    ubyte enc_type;
+    struct PairsData *precomp[2];
+    int factor[2][TBPIECES];
+    ubyte pieces[2][TBPIECES];
+    ubyte norm[2][TBPIECES];
+};
+
+struct TBEntry_pawn {
+    char *data;
+    uint64_t key;
+    uint64_t mapping;
+    std::atomic<ubyte> ready;
+    ubyte num;
+    ubyte symmetric;
+    ubyte has_pawns;
+    ubyte pawns[2];
+    struct {
+        struct PairsData *precomp[2];
+        int factor[2][TBPIECES];
+        ubyte pieces[2][TBPIECES];
+        ubyte norm[2][TBPIECES];
+    } file[4];
+};
+
+struct DTZEntry_piece {
+    char *data;
+    uint64_t key;
+    uint64_t mapping;
+    std::atomic<ubyte> ready;
+    ubyte num;
+    ubyte symmetric;
+    ubyte has_pawns;
+    ubyte enc_type;
+    struct PairsData *precomp;
+    int factor[TBPIECES];
+    ubyte pieces[TBPIECES];
+    ubyte norm[TBPIECES];
+    ubyte flags; // accurate, mapped, side
+    ushort map_idx[4];
+    ubyte *map;
+};
+
+struct DTZEntry_pawn {
+    char *data;
+    uint64_t key;
+    uint64_t mapping;
+    std::atomic<ubyte> ready;
+    ubyte num;
+    ubyte symmetric;
+    ubyte has_pawns;
+    ubyte pawns[2];
+    struct {
+        struct PairsData *precomp;
+        int factor[TBPIECES];
+        ubyte pieces[TBPIECES];
+        ubyte norm[TBPIECES];
+    } file[4];
+    ubyte flags[4];
+    ushort map_idx[4][4];
+    ubyte *map;
+};
+
+struct TBHashEntry {
+    uint64_t key;
+    struct TBEntry *ptr;
+};
+
+struct DTZTableEntry {
+    uint64_t key1;
+    uint64_t key2;
+    std::atomic<TBEntry*> entry;
+};
+
+#endif