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https://github.com/idolpx/libMeatloaf.git
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113 lines
2.8 KiB
C++
113 lines
2.8 KiB
C++
// .D8B - Backbit D8B disk format
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//
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// https://www.backbit.io/downloads/Docs/BackBit%20Cartridge%20Documentation.pdf#page=20
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// https://github.com/evietron/BackBit-Tool
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//
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#ifndef MEATLOAF_MEDIA_D8B
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#define MEATLOAF_MEDIA_D8B
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#include "meat_io.h"
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#include "disk/d64.h"
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/********************************************************
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* Streams
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********************************************************/
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class D8BIStream : public D64IStream {
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// override everything that requires overriding here
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public:
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D8BIStream(std::shared_ptr<MStream> is) : D64IStream(is)
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{
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// D8B Partition Info
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std::vector<BlockAllocationMap> b = {
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{
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1, // track
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1, // sector
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0x00, // offset
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1, // start_track
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40, // end_track
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18 // byte_count
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}
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};
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Partition p = {
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1, // track
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0, // sector
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0x04, // header_offset
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1, // directory_track
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4, // directory_sector
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0x00, // directory_offset
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b // block_allocation_map
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};
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partitions.clear();
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partitions.push_back(p);
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sectorsPerTrack = { 136 };
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uint32_t size = containerStream->size();
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switch (size + media_header_size)
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{
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case 1392640: // 136 sectors per track (deprecated)
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break;
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case 1474560: // 144 sectors per track
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sectorsPerTrack = { 144 };
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break;
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}
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};
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// virtual std::unordered_map<std::string, std::string> info() override {
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// return {
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// {"System", "Commodore"},
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// {"Format", "D8B"},
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// {"Media Type", "ARCHIVE"},
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// {"Tracks", getTrackCount()},
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// {"Sectors / Blocks", this.getSectorCount()},
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// {"Sector / Block Size", std::string(block_size)},
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// {"Format", "Backbit Archive"}
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// };
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// };
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protected:
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private:
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friend class D8BFile;
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};
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/********************************************************
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* File implementations
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********************************************************/
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class D8BFile: public D64File {
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public:
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D8BFile(std::string path, bool is_dir = true) : D64File(path, is_dir) {};
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MStream* getDecodedStream(std::shared_ptr<MStream> containerIstream) override;
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};
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/********************************************************
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* FS
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********************************************************/
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class D8BFileSystem: public MFileSystem
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{
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public:
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MFile* getFile(std::string path) override {
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return new D8BFile(path);
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}
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bool handles(std::string fileName) override {
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return byExtension(".d8b", fileName);
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}
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D8BFileSystem(): MFileSystem("d8b") {};
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};
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#endif /* MEATLOAF_MEDIA_D8B */
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