mirror of https://github.com/AxioDL/nod.git
86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
#include <stdio.h>
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#include "NOD/Util.hpp"
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#include "NOD/IDiscIO.hpp"
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#if _WIN32
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#define ftello _ftelli64
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#define fseeko _fseeki64
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#endif
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namespace NOD
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{
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class DiscIOISO : public IDiscIO
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{
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SystemString filepath;
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public:
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DiscIOISO(const SystemString& fpin)
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: filepath(fpin) {}
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class ReadStream : public IReadStream
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{
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friend class DiscIOISO;
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FILE* fp;
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ReadStream(FILE* fpin)
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: fp(fpin) {}
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~ReadStream() {fclose(fp);}
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public:
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uint64_t read(void* buf, uint64_t length)
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{return fread(buf, 1, length, fp);}
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uint64_t position() const
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{return ftello(fp);}
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void seek(int64_t offset, int whence)
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{fseeko(fp, offset, whence);}
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};
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std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const
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{
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#if NOD_UCS2
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FILE* fp = _wfopen(filepath.c_str(), L"rb");
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#else
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FILE* fp = fopen(filepath.c_str(), "rb");
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#endif
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if (!fp)
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{
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LogModule.report(LogVisor::Error, _S("Unable to open '%s' for reading"), filepath.c_str());
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return std::unique_ptr<IReadStream>();
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}
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fseeko(fp, offset, SEEK_SET);
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return std::unique_ptr<IReadStream>(new ReadStream(fp));
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}
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class WriteStream : public IWriteStream
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{
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friend class DiscIOISO;
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FILE* fp;
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WriteStream(FILE* fpin)
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: fp(fpin) {}
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~WriteStream() {fclose(fp);}
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public:
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uint64_t write(void* buf, uint64_t length)
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{return fwrite(buf, 1, length, fp);}
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};
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std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const
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{
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#if NOD_UCS2
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FILE* fp = _wfopen(filepath.c_str(), L"wb");
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#else
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FILE* fp = fopen(filepath.c_str(), "wb");
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#endif
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if (!fp)
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{
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LogModule.report(LogVisor::Error, _S("Unable to open '%s' for writing"), filepath.c_str());
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return std::unique_ptr<IWriteStream>();
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}
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fseeko(fp, offset, SEEK_SET);
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return std::unique_ptr<IWriteStream>(new WriteStream(fp));
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}
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};
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std::unique_ptr<IDiscIO> NewDiscIOISO(const SystemChar* path)
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{
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return std::unique_ptr<IDiscIO>(new DiscIOISO(path));
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}
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}
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