mirror of
https://github.com/idolpx/libMeatloaf.git
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105 lines
2.3 KiB
C++
105 lines
2.3 KiB
C++
// .G64 - The G64 GCR-encoded disk image format
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//
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// https://vice-emu.sourceforge.io/vice_17.html#SEC335
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// https://ist.uwaterloo.ca/~schepers/formats/G64.TXT
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// http://www.linusakesson.net/programming/gcr-decoding/index.php
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//
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#ifndef MEATLOAF_MEDIA_G64
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#define MEATLOAF_MEDIA_G64
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#include "meat_io.h"
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#include "d64.h"
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// Format codes:
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// ID Description
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// 0 Unknown format
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// 1 GCR Data
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// 2 CBM DOS
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// 3 CBM DOS Extended
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// 4 MicroProse
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// 5 RapidLok
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// 6 Datasoft
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// 7 Vorpal
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// 8 V-MAX!
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// 9 Teque
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// 10 TDP
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// 11 Big Five
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// 12 OziSoft
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// Format Extensions:
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// ID Description
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// 0 Unknown protection
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// 1 Datasoft with Weak bits
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// 2 CBM DOS with Cyan loader, Weak bits
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// 3 CBM DOS with Datasoft, Weak bits
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// 4 RapidLok Key
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// 5 Data Duplication
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// 6 Melbourne House
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// 7 Melbourne House, Weak bits
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// 8 PirateBusters v1.0
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// 9 PirateBusters v2.0, Track A
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// 10 PirateBusters v2.0, Track B
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// 11 PirateSlayer
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// 12 CBM DOS, XEMAG
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/********************************************************
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* Streams
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********************************************************/
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class G64IStream : public D64IStream {
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// override everything that requires overriding here
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public:
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G64IStream(std::shared_ptr<MStream> is) : D64IStream(is)
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{
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// G64 Offsets
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//directory_header_offset = {18, 0, 0x90};
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//directory_list_offset = {18, 1, 0x00};
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//block_allocation_map = { {18, 0, 0x04, 1, 35, 4}, {53, 0, 0x00, 36, 70, 3} };
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//sectorsPerTrack = { 17, 18, 19, 21 };
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};
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protected:
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private:
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friend class G64File;
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};
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/********************************************************
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* File implementations
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********************************************************/
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class G64File: public D64File {
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public:
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G64File(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 G64FileSystem: 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 G64File(path);
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}
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bool handles(std::string fileName) override {
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return byExtension(".g64", fileName);
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}
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G64FileSystem(): MFileSystem("g64") {};
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};
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#endif /* MEATLOAF_MEDIA_G64 */
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