mirror of https://github.com/AxioDL/nod.git
260 lines
8.8 KiB
C++
260 lines
8.8 KiB
C++
#ifndef __NOD_DISC_BASE__
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#define __NOD_DISC_BASE__
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#include <vector>
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#include <memory>
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#include <string>
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#include <stdio.h>
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#include <stdint.h>
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#include "Util.hpp"
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#include "IDiscIO.hpp"
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#include "IFileIO.hpp"
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namespace NOD
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{
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class DiscBase
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{
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public:
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virtual ~DiscBase() {}
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struct Header
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{
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char gameID[6];
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char discNum;
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char discVersion;
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char audioStreaming;
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char streamBufSz;
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char unk[14];
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uint32_t wiiMagic;
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uint32_t gcnMagic;
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char gameTitle[64];
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Header(IDiscIO& dio)
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{
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std::unique_ptr<IDiscIO::IReadStream> s = dio.beginReadStream(0);
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s->read(this, sizeof(*this));
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wiiMagic = SBig(wiiMagic);
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gcnMagic = SBig(gcnMagic);
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}
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};
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class FSTNode
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{
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uint32_t typeAndNameOffset;
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uint32_t offset;
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uint32_t length;
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public:
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inline bool isDir() const {return SBig(typeAndNameOffset) >> 24;}
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inline uint32_t getNameOffset() const {return SBig(typeAndNameOffset) & 0xffffff;}
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inline uint32_t getOffset() const {return SBig(offset);}
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inline uint32_t getLength() const {return SBig(length);}
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};
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class IPartition
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{
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public:
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virtual ~IPartition() {}
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enum Kind
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{
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PART_DATA,
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PART_UPDATE,
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PART_CHANNEL
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};
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struct DOLHeader
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{
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uint32_t textOff[7];
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uint32_t dataOff[11];
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uint32_t textStarts[7];
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uint32_t dataStarts[11];
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uint32_t textSizes[7];
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uint32_t dataSizes[11];
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uint32_t bssStart;
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uint32_t bssSize;
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uint32_t entryPoint;
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};
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class Node
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{
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public:
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enum Kind
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{
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NODE_FILE,
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NODE_DIRECTORY
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};
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private:
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friend class IPartition;
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const IPartition& m_parent;
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Kind m_kind;
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std::unique_ptr<IFileIO> m_hddFile;
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uint64_t m_discOffset;
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uint64_t m_discLength;
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std::string m_name;
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std::vector<Node>::iterator m_childrenBegin;
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std::vector<Node>::iterator m_childrenEnd;
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public:
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Node(const IPartition& parent, const FSTNode& node, const char* name)
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: m_parent(parent),
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m_kind(node.isDir() ? NODE_DIRECTORY : NODE_FILE),
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m_discOffset(parent.normalizeOffset(node.getOffset())),
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m_discLength(node.getLength()),
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m_name(name) {}
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inline Kind getKind() const {return m_kind;}
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inline const std::string& getName() const {return m_name;}
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inline uint64_t size() const {return m_discLength;}
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std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset=0) const
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{
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if (m_kind != NODE_FILE)
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{
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throw std::runtime_error("unable to stream a non-file");
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return std::unique_ptr<IPartReadStream>();
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}
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return m_parent.beginReadStream(m_discOffset + offset);
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}
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std::unique_ptr<uint8_t[]> getBuf() const
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{
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if (m_kind != NODE_FILE)
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{
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throw std::runtime_error("unable to buffer a non-file");
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return std::unique_ptr<uint8_t[]>();
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}
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uint8_t* buf = new uint8_t[m_discLength];
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beginReadStream()->read(buf, m_discLength);
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return std::unique_ptr<uint8_t[]>(buf);
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}
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inline std::vector<Node>::iterator rawBegin() const {return m_childrenBegin;}
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inline std::vector<Node>::iterator rawEnd() const {return m_childrenEnd;}
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class DirectoryIterator : std::iterator<std::forward_iterator_tag, Node>
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{
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friend class Node;
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std::vector<Node>::iterator m_it;
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DirectoryIterator(const std::vector<Node>::iterator& it)
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: m_it(it) {}
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public:
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inline bool operator!=(const DirectoryIterator& other) {return m_it != other.m_it;}
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inline bool operator==(const DirectoryIterator& other) {return m_it == other.m_it;}
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inline DirectoryIterator& operator++()
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{
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if (m_it->m_kind == NODE_DIRECTORY)
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m_it = m_it->rawEnd();
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else
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++m_it;
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return *this;
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}
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inline Node& operator*() {return *m_it;}
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inline Node* operator->() {return &*m_it;}
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};
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inline DirectoryIterator begin() const {return DirectoryIterator(m_childrenBegin);}
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inline DirectoryIterator end() const {return DirectoryIterator(m_childrenEnd);}
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inline DirectoryIterator find(const std::string& name) const
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{
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if (m_kind == NODE_DIRECTORY)
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{
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DirectoryIterator it=begin();
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for (; it != end() ; ++it)
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{
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if (!it->getName().compare(name))
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return it;
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}
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return it;
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}
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return end();
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}
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void extractToDirectory(const SystemString& basePath, bool force=false);
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};
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protected:
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uint64_t m_dolOff;
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uint64_t m_fstOff;
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uint64_t m_fstSz;
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uint64_t m_apploaderSz;
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std::vector<Node> m_nodes;
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void parseFST(IPartReadStream& s);
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DOLHeader m_dolHead;
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uint64_t m_dolSz;
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void parseDOL(IPartReadStream& s);
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const DiscBase& m_parent;
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Kind m_kind;
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uint64_t m_offset;
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public:
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IPartition(const DiscBase& parent, Kind kind, uint64_t offset)
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: m_parent(parent), m_kind(kind), m_offset(offset) {}
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virtual uint64_t normalizeOffset(uint64_t anOffset) const {return anOffset;}
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inline Kind getKind() const {return m_kind;}
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virtual std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset=0) const=0;
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inline std::unique_ptr<IPartReadStream> beginDOLReadStream(uint64_t offset=0) const
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{return beginReadStream(m_dolOff + offset);}
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inline std::unique_ptr<IPartReadStream> beginFSTReadStream(uint64_t offset=0) const
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{return beginReadStream(m_fstOff + offset);}
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inline std::unique_ptr<IPartReadStream> beginApploaderReadStream(uint64_t offset=0) const
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{return beginReadStream(0x2440 + offset);}
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inline const Node& getFSTRoot() const {return m_nodes[0];}
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inline Node& getFSTRoot() {return m_nodes[0];}
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void extractToDirectory(const SystemString& path, bool force=false);
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inline uint64_t getDOLSize() const {return m_dolSz;}
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inline std::unique_ptr<uint8_t[]> getDOLBuf() const
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{
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std::unique_ptr<uint8_t[]> buf(new uint8_t[m_dolSz]);
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beginDOLReadStream()->read(buf.get(), m_dolSz);
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return buf;
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}
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inline uint64_t getFSTSize() const {return m_fstSz;}
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inline std::unique_ptr<uint8_t[]> getFSTBuf() const
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{
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std::unique_ptr<uint8_t[]> buf(new uint8_t[m_fstSz]);
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beginFSTReadStream()->read(buf.get(), m_fstSz);
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return buf;
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}
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inline uint64_t getApploaderSize() const {return m_apploaderSz;}
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inline std::unique_ptr<uint8_t[]> getApploaderBuf() const
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{
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std::unique_ptr<uint8_t[]> buf(new uint8_t[m_apploaderSz]);
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beginApploaderReadStream()->read(buf.get(), m_apploaderSz);
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return buf;
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}
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};
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protected:
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std::unique_ptr<IDiscIO> m_discIO;
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Header m_header;
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std::vector<std::unique_ptr<IPartition>> m_partitions;
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public:
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DiscBase(std::unique_ptr<IDiscIO>&& dio)
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: m_discIO(std::move(dio)), m_header(*m_discIO.get()) {}
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virtual bool commit()=0;
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inline const Header& getHeader() const {return m_header;}
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inline const IDiscIO& getDiscIO() const {return *m_discIO.get();}
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inline IPartition* getDataPartition()
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{
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for (const std::unique_ptr<IPartition>& part : m_partitions)
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if (part->getKind() == IPartition::PART_DATA)
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return part.get();
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return nullptr;
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}
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inline IPartition* getUpdatePartition()
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{
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for (const std::unique_ptr<IPartition>& part : m_partitions)
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if (part->getKind() == IPartition::PART_UPDATE)
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return part.get();
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return nullptr;
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}
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inline void extractToDirectory(const SystemString& path, bool force=false)
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{
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for (std::unique_ptr<IPartition>& part : m_partitions)
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part->extractToDirectory(path, force);
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}
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};
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}
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#endif // __NOD_DISC_BASE__
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