Add some opening book stuff that is still under development, and really should be...

[remoteglot] / book / binloader.cpp

diff --git a/book/binloader.cpp b/book/binloader.cpp
new file mode 100644 (file)
index 0000000..e4b40a6
--- /dev/null
+++ b/book/binloader.cpp
@@ -0,0 +1,113 @@
+//#define _GLIBCXX_PARALLEL
+#include <stdio.h>
+#include <vector>
+#include <mtbl.h>
+#include <algorithm>
+#include <utility>
+#include <memory>
+#include <string>
+#include <string.h>
+#include "count.h"
+
+using namespace std;
+
+enum Result { WHITE = 0, DRAW, BLACK };
+struct Element {
+       string bpfen_and_move;
+       Result result;
+       int opening_num, white_elo, black_elo;
+
+       bool operator< (const Element& other) const {
+               return bpfen_and_move < other.bpfen_and_move;
+       }
+};
+
+int main(int argc, char **argv)
+{
+       vector<Element> elems;
+
+       for (int i = 1; i < argc; ++i) {
+               FILE *fp = fopen(argv[i], "rb");
+               if (fp == NULL) {
+                       perror(argv[i]);
+                       exit(1);
+               }
+               for ( ;; ) {
+                       int l = getc(fp);
+                       if (l == -1) {
+                               break;
+                       }
+               
+                       string bpfen_and_move;
+                       bpfen_and_move.resize(l);
+                       if (fread(&bpfen_and_move[0], l, 1, fp) != 1) {
+                               perror("fread()");
+               //              exit(1);
+                               break;
+                       }
+
+                       int r = getc(fp);
+                       if (r == -1) {
+                               perror("getc()");
+                               //exit(1);
+                               break;
+                       }
+
+                       int opening_num, white_elo, black_elo;
+                       if (fread(&white_elo, sizeof(white_elo), 1, fp) != 1) {
+                               perror("fread()");
+                               //exit(1);
+                               break;
+                       }
+                       if (fread(&black_elo, sizeof(black_elo), 1, fp) != 1) {
+                               perror("fread()");
+                               //exit(1);
+                               break;
+                       }
+                       if (fread(&opening_num, sizeof(opening_num), 1, fp) != 1) {
+                               perror("fread()");
+                               //exit(1);
+                               break;
+                       }
+                       elems.emplace_back(Element {move(bpfen_and_move), Result(r), opening_num, white_elo, black_elo});
+               }
+               fclose(fp);
+
+               printf("Read %ld elems\n", elems.size());
+       }
+
+       printf("Sorting...\n");
+       sort(elems.begin(), elems.end());
+
+       printf("Writing SSTable...\n");
+       mtbl_writer* mtbl = mtbl_writer_init("open.mtbl", NULL);
+       Count c;
+       int num_elo = 0;
+       double sum_white_elo = 0.0, sum_black_elo = 0.0;
+       for (int i = 0; i < elems.size(); ++i) {
+               if (elems[i].result == WHITE) {
+                       ++c.white;
+               } else if (elems[i].result == DRAW) {
+                       ++c.draw;
+               } else if (elems[i].result == BLACK) {
+                       ++c.black;
+               }
+               c.opening_num = elems[i].opening_num;
+               if (elems[i].white_elo >= 100 && elems[i].black_elo >= 100) {
+                       sum_white_elo += elems[i].white_elo;
+                       sum_black_elo += elems[i].black_elo;
+                       ++num_elo;
+               }
+               if (i == elems.size() - 1 || elems[i].bpfen_and_move != elems[i + 1].bpfen_and_move) {
+                       c.avg_white_elo = sum_white_elo / num_elo;
+                       c.avg_black_elo = sum_black_elo / num_elo;
+                       mtbl_writer_add(mtbl,
+                               (const uint8_t *)elems[i].bpfen_and_move.data(), elems[i].bpfen_and_move.size(),
+                               (const uint8_t *)&c, sizeof(c));
+                       c = Count();
+                       num_elo = 0;
+                       sum_white_elo = sum_black_elo = 0.0;
+               }
+       }
+       mtbl_writer_destroy(&mtbl);
+}