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73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
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#ifndef INCLUDED_GAMELOADER_H
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#define INCLUDED_GAMELOADER_H
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#include "Util/NewConfig.h"
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#include "Pkgs/unzip.h"
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#include "Game.h"
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#include "ROMSet.h"
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#include <map>
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#include <set>
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class GameLoader
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{
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private:
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// Describes a file node in the game XML
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struct File
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{
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typedef std::shared_ptr<File> ptr_t;
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uint32_t offset;
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std::string filename;
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uint32_t crc32;
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bool has_crc32;
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static ptr_t Create(const GameLoader &loader, const Util::Config::Node &file_node);
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bool Matches(const std::string &filename, uint32_t crc32) const;
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};
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// Describes a region node in the game XML
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struct Region
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{
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typedef std::shared_ptr<Region> ptr_t;
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std::string region_name;
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size_t stride;
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size_t chunk_size;
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bool byte_swap;
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typedef std::map<uint32_t, File::ptr_t> FilesByOffset_t;
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FilesByOffset_t files_by_offset;
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static ptr_t Create(const GameLoader &loader, const Util::Config::Node ®ion_node);
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};
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std::map<std::string, Game> m_game_info_by_game; // ROMs not loaded here
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// Parsed XML
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typedef std::map<std::string, Region::ptr_t> RegionsByName_t;
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std::map<std::string, RegionsByName_t> m_regions_by_game;
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std::string m_xml_filename;
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// Zip file info
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std::string m_zipfilename;
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unzFile m_zf;
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std::map<uint32_t, std::string> m_filename_by_crc32;
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std::map<std::string, unz_file_info> m_zip_info_by_filename;
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std::map<uint32_t, unz_file_info> m_zip_info_by_crc32;
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static bool MissingAttrib(const GameLoader &loader, const Util::Config::Node &node, const std::string &attribute);
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bool ParseXML(const Util::Config::Node &xml);
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std::set<std::string> IdentifyGamesFileBelongsTo(const std::string &filename, uint32_t crc32) const;
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const unz_file_info *LookupZippedFile(const File::ptr_t &file) const;
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bool ComputeRegionSize(uint32_t *region_size, const Region::ptr_t ®ion) const;
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bool LoadZippedFile(std::shared_ptr<uint8_t> *buffer, size_t *file_size, const GameLoader::File::ptr_t &file);
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bool LoadRegion(ROM *buffer, const GameLoader::Region::ptr_t ®ion);
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bool LoadROMs(ROMSet *rom_set, const std::string &game_name);
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bool LoadDefinitionXML(const std::string &filename);
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public:
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GameLoader(const std::string &xml_file);
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bool Load(Game *game, ROMSet *rom_set, const std::string &zipfilename);
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const std::map<std::string, Game> &GetGames() const
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{
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return m_game_info_by_game;
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}
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};
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#endif // INCLUDED_GAMELOADER_H
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