void generate_kpk_bitbase(uint8_t bitbase[]) {
// Allocate array and initialize:
Bitbase = new Result[IndexMax];
initialize();
// Iterate until all positions are classified:
while(next_iteration());
// Compress bitbase into the supplied parameter:
int i, j, b;
for(i = 0; i < 24576; i++) {
for(b = 0, j = 0; j < 8; b |= (compress_result(Bitbase[8*i+j]) << j), j++);
bitbase[i] = b;
}
// Release allocated memory:
delete [] Bitbase;
}
void generate_kpk_bitbase(uint8_t bitbase[]) {
// Try to load bitbase from disk
std::ifstream inFile(kpk_bitbase_filename().c_str(),
std::ios::in | std::ios::binary);
if(inFile.is_open()) {
if(inFile.read((char *)bitbase, 24576)) {
// Successfully read 24576 bytes
std::cout << "Successfully read bitbase file from disk!" << std::endl;
inFile.close();
return;
}
inFile.close();
}
// Reading the bitbase from disk failed, generate it and dump it to disk
// instead.
std::cout << "Generating KP vs K bitbase..." << std::endl;
// Allocate array and initialize:
Bitbase = new Result[IndexMax];
initialize();
// Iterate until all positions are classified:
while(next_iteration());
// Compress bitbase into the supplied parameter:
int i, j, b;
for(i = 0; i < 24576; i++) {
for(b = 0, j = 0; j < 8; b |= (compress_result(Bitbase[8*i+j]) << j), j++);
assert(b == int(uint8_t(b)));
bitbase[i] = (uint8_t)b;
}
// Release allocated memory:
delete [] Bitbase;
// Save bitbase to disk
std::ofstream outFile(kpk_bitbase_filename().c_str(),
std::ios::out|std::ios::binary);
if(outFile.is_open())
outFile.write((char *)bitbase, 24576);
}