ProSystem-Core/core/Database.cpp

// ----------------------------------------------------------------------------
//   ___  ___  ___  ___       ___  ____  ___  _  _
//  /__/ /__/ /  / /__  /__/ /__    /   /_   / |/ /
// /    / \  /__/ ___/ ___/ ___/   /   /__  /    /  emulator
//
// ----------------------------------------------------------------------------
// Copyright 2005 Greg Stanton
// 
// This program 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 2 of the License, or
// (at your option) any later version.
//
// This program 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.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
// ----------------------------------------------------------------------------
// Database.cpp
// ----------------------------------------------------------------------------
#include "Database.h"
#define DATABASE_SOURCE "Database.cpp"

bool cart_in_db = false;
bool database_enabled = true;
std::string database_filename;

static std::string database_GetValue(std::string entry) {
  int index = entry.rfind('=');
  return entry.substr(index + 1);
}

// ----------------------------------------------------------------------------
// Initialize
// ----------------------------------------------------------------------------
void database_Initialize( ) {
  database_filename = common_defaultPath + "ProSystem.dat";
}

// ----------------------------------------------------------------------------
// Load
// ----------------------------------------------------------------------------
bool database_Load(std::string digest) {
  cart_in_db = false;
  if(database_enabled) {
	logger_LogInfo("Accessing database " + database_filename + ".", DATABASE_SOURCE);
    
    FILE* file = fopen(database_filename.c_str( ), "r");
    if(file == NULL) {
      logger_LogError("Failed to open the database for reading.", DATABASE_SOURCE);
      return false;  
    }

    // max count of items in the database
    static int count = 17;

    char buffer[256];
    while(fgets(buffer, 256, file) != NULL) {
      std::string line = buffer;
      if(line.compare(1, 32, digest.c_str( )) == 0) {
        cart_in_db = true;
        std::string entry[count];
        for (int index = 0; index < count; index++) {
          buffer[0] = '\0';
          fgets(buffer, 256, file);
          if (strchr(buffer, '[')) {
              // Passed the current game in DB
              break;
          }
          entry[index] = common_Remove(buffer, '\n');  
          entry[index] = common_Remove(entry[index], '\r');
        }
        
        cartridge_title = database_GetValue(entry[0]);
        cartridge_type = common_ParseByte(database_GetValue(entry[1]));
        cartridge_pokey = common_ParseBool(database_GetValue(entry[2]));
        cartridge_controller[0] = common_ParseByte(database_GetValue(entry[3]));
        cartridge_controller[1] = common_ParseByte(database_GetValue(entry[4]));
        cartridge_region = common_ParseByte(database_GetValue(entry[5]));
        cartridge_flags = common_ParseUint(database_GetValue(entry[6]));

        // Optionally load the lightgun crosshair offsets, hblank, dual analog
        for(int index = 7; index < count; index++)
        {
          if(entry[index].find("crossx") != std::string::npos)
          {
              cartridge_crosshair_x = common_ParseInt(database_GetValue(entry[index]));
          }         
          if(entry[index].find("crossy") != std::string::npos)
          {
              cartridge_crosshair_y = common_ParseInt(database_GetValue(entry[index]));
          }         
          if(entry[index].find("hblank") != std::string::npos)
          {
              cartridge_hblank = common_ParseInt(database_GetValue(entry[index]));
          }         
          if(entry[index].find("dualanalog") != std::string::npos)
          {
              cartridge_dualanalog = common_ParseBool(database_GetValue(entry[index]));
          }
          if (entry[index].find("pokey450") != std::string::npos) {
              cartridge_pokey450 = common_ParseBool(database_GetValue(entry[index]));
              if (cartridge_pokey450) {
                  cartridge_pokey = true;
              }
          }
          if (entry[index].find("xm") != std::string::npos) {
              cartridge_xm = common_ParseBool(database_GetValue(entry[index]));
          }
          if (entry[index].find("disablebios") != std::string::npos) {
              cartridge_disable_bios = common_ParseBool(database_GetValue(entry[index]));
          }
          if (entry[index].find("leftswitch") != std::string::npos) {
              cartridge_left_switch = common_ParseByte(database_GetValue(entry[index]));
          }
          if (entry[index].find("rightswitch") != std::string::npos) {
              cartridge_right_switch = common_ParseByte(database_GetValue(entry[index]));
          }
          if (entry[index].find("swapbuttons") != std::string::npos) {
              cartridge_swap_buttons = common_ParseBool(database_GetValue(entry[index]));
          }
          if (entry[index].find("hsc") != std::string::npos) {
              cartridge_hsc_enabled = common_ParseBool(database_GetValue(entry[index]));
          }
        }
        break;
      }
    }    
    
    fclose(file);  
  }
  return true;
}