mirror of
https://github.com/idolpx/libMeatloaf.git
synced 2025-12-06 04:38:49 -05:00
121 lines
2.8 KiB
C++
121 lines
2.8 KiB
C++
// .T64 - The T64 tape image format
|
|
// https://vice-emu.sourceforge.io/vice_17.html#SEC331
|
|
// https://ist.uwaterloo.ca/~schepers/formats/T64.TXT
|
|
//
|
|
|
|
|
|
#ifndef MEATLOAF_MEDIA_T64
|
|
#define MEATLOAF_MEDIA_T64
|
|
|
|
#include "meat_io.h"
|
|
#include "cbm_media.h"
|
|
|
|
|
|
/********************************************************
|
|
* Streams
|
|
********************************************************/
|
|
|
|
class T64IStream : public CBMImageStream {
|
|
// override everything that requires overriding here
|
|
|
|
public:
|
|
T64IStream(std::shared_ptr<MStream> is) : CBMImageStream(is) { };
|
|
|
|
protected:
|
|
struct Header {
|
|
char disk_name[24];
|
|
};
|
|
|
|
struct Entry {
|
|
uint8_t entry_type;
|
|
uint8_t file_type;
|
|
uint8_t start_address[2];
|
|
uint8_t end_address[2];
|
|
uint16_t free_1;
|
|
uint32_t data_offset;
|
|
uint32_t free_2;
|
|
char filename[16];
|
|
};
|
|
|
|
void seekHeader() override {
|
|
containerStream->seek(0x28);
|
|
containerStream->read((uint8_t*)&header, 24);
|
|
}
|
|
|
|
bool seekNextImageEntry() override {
|
|
return seekEntry(entry_index + 1);
|
|
}
|
|
|
|
bool seekEntry( std::string filename ) override;
|
|
bool seekEntry( uint16_t index ) override;
|
|
|
|
uint16_t readFile(uint8_t* buf, uint16_t size) override;
|
|
bool seekPath(std::string path) override;
|
|
|
|
Header header;
|
|
Entry entry;
|
|
|
|
private:
|
|
friend class T64File;
|
|
};
|
|
|
|
|
|
/********************************************************
|
|
* File implementations
|
|
********************************************************/
|
|
|
|
class T64File: public MFile {
|
|
public:
|
|
|
|
T64File(std::string path, bool is_dir = true): MFile(path) {
|
|
isDir = is_dir;
|
|
|
|
media_image = name;
|
|
isPETSCII = true;
|
|
};
|
|
|
|
~T64File() {
|
|
// don't close the stream here! It will be used by shared ptr D64Util to keep reading image params
|
|
}
|
|
|
|
MStream* getDecodedStream(std::shared_ptr<MStream> containerIstream) override;
|
|
|
|
bool isDirectory() override;
|
|
bool rewindDirectory() override;
|
|
MFile* getNextFileInDir() override;
|
|
bool mkDir() override { return false; };
|
|
|
|
bool exists() override { return true; };
|
|
bool remove() override { return false; };
|
|
bool rename(std::string dest) override { return false; };
|
|
time_t getLastWrite() override { return 0; };
|
|
time_t getCreationTime() override { return 0; };
|
|
uint32_t size() override;
|
|
|
|
bool isDir = true;
|
|
bool dirIsOpen = false;
|
|
};
|
|
|
|
|
|
|
|
/********************************************************
|
|
* FS
|
|
********************************************************/
|
|
|
|
class T64FileSystem: public MFileSystem
|
|
{
|
|
public:
|
|
MFile* getFile(std::string path) override {
|
|
return new T64File(path);
|
|
}
|
|
|
|
bool handles(std::string fileName) override {
|
|
return byExtension(".t64", fileName);
|
|
}
|
|
|
|
T64FileSystem(): MFileSystem("t64") {};
|
|
};
|
|
|
|
|
|
#endif /* MEATLOAF_MEDIA_T64 */
|