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https://github.com/libretro/beetle-pce-fast-libretro.git
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110 lines
2.3 KiB
C++
110 lines
2.3 KiB
C++
#ifndef MDFN_FILE_H
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#define MDFN_FILE_H
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#include <string>
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#define MDFNFILE_EC_NOTFOUND 1
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#define MDFNFILE_EC_OTHER 2
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class MDFNFILE
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{
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public:
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MDFNFILE();
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// WIP constructors:
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MDFNFILE(const char *path, const void *known_ext, const char *purpose = NULL);
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~MDFNFILE();
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bool Open(const char *path, const void *known_ext, const char *purpose = NULL, const bool suppress_notfound_pe = FALSE);
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INLINE bool Open(const std::string &path, const void *known_ext, const char *purpose = NULL, const bool suppress_notfound_pe = FALSE)
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{
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return(Open(path.c_str(), known_ext, purpose, suppress_notfound_pe));
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}
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bool ApplyIPS(void*);
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bool Close(void);
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uint64 fread(void *ptr, size_t size, size_t nmemb);
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int fseek(int64 offset, int whence);
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inline uint64 ftell(void)
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{
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return(location);
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}
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inline void rewind(void)
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{
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location = 0;
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}
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int read32le(uint32 *Bufo);
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int read16le(uint16 *Bufo);
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inline int fgetc(void)
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{
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if(location < f_size)
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return f_data[location++];
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return EOF;
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}
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inline int fisarchive(void)
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{
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return(0);
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}
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char *fgets(char *s, int size);
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uint8 *f_data;
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int64 f_size;
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char *f_ext;
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private:
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int64 location;
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bool MakeMemWrapAndClose(void *tz);
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};
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class PtrLengthPair
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{
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public:
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inline PtrLengthPair(const void *new_data, const uint64 new_length)
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{
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data = new_data;
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length = new_length;
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}
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~PtrLengthPair()
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{
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}
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INLINE const void *GetData(void) const
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{
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return(data);
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}
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INLINE uint64 GetLength(void) const
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{
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return(length);
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}
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private:
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const void *data;
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uint64 length;
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};
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#include <vector>
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// These functions should be used for data like save states and non-volatile backup memory.
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// Until(if, even) we add LoadFromFile functions, for reading the files these functions generate, just use gzopen(), gzread(), etc.
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// "compress" is set to the zlib compression level. 0 disables compression entirely, and dumps the file without a gzip header or footer.
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// (Note: There is a setting that will force compress to 0 in the internal DumpToFile logic, for hackers who don't want to ungzip save files.)
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bool MDFN_DumpToFile(const char *filename, int compress, const void *data, const uint64 length);
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bool MDFN_DumpToFile(const char *filename, int compress, const std::vector<PtrLengthPair> &pearpairs);
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#endif
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