// license:BSD-3-Clause // copyright-holders:Olivier Galibert #ifndef IPF_DSK_H_ #define IPF_DSK_H_ #include "flopimg.h" class ipf_format : public floppy_image_format_t { public: ipf_format(); virtual int identify(io_generic *io, uint32_t form_factor) override; virtual bool load(io_generic *io, uint32_t form_factor, floppy_image *image) override; virtual const char *name() const override; virtual const char *description() const override; virtual const char *extensions() const override; virtual bool supports_save() const override; private: struct track_info { uint32_t cylinder, head, type; uint32_t sigtype, process, reserved[3]; uint32_t size_bytes, size_cells; uint32_t index_bytes, index_cells; uint32_t datasize_cells, gapsize_cells; uint32_t block_count, weak_bits; uint32_t data_size_bits; bool info_set; const uint8_t *data; uint32_t data_size; }; track_info *tinfos; uint32_t tcount; uint32_t type, release, revision; uint32_t encoder_type, encoder_revision, origin; uint32_t min_cylinder, max_cylinder, min_head, max_head; uint32_t credit_day, credit_time; uint32_t platform[4], extra[5]; uint32_t crc32r(const uint8_t *data, uint32_t size); bool parse_info(const uint8_t *info); bool parse_imge(const uint8_t *imge); bool parse_data(const uint8_t *data, uint32_t &pos, uint32_t max_extra_size); bool scan_one_tag(std::vector &data, uint32_t &pos, uint8_t *&tag, uint32_t &tsize); bool scan_all_tags(std::vector &data); static uint32_t r32(const uint8_t *p); static uint32_t rb(const uint8_t *&p, int count); track_info *get_index(uint32_t idx); void track_write_raw(std::vector::iterator &tpos, const uint8_t *data, uint32_t cells, bool &context); void track_write_mfm(std::vector::iterator &tpos, const uint8_t *data, uint32_t start_offset, uint32_t patlen, uint32_t cells, bool &context); void track_write_weak(std::vector::iterator &tpos, uint32_t cells); bool generate_block_data(const uint8_t *data, const uint8_t *dlimit, std::vector::iterator tpos, std::vector::iterator tlimit, bool &context); bool gap_description_to_reserved_size(const uint8_t *&data, const uint8_t *dlimit, uint32_t &res_size); bool generate_gap_from_description(const uint8_t *&data, const uint8_t *dlimit, std::vector::iterator tpos, uint32_t size, bool pre, bool &context); bool generate_block_gap_0(uint32_t gap_cells, uint8_t pattern, uint32_t &spos, uint32_t ipos, std::vector::iterator &tpos, bool &context); bool generate_block_gap_1(uint32_t gap_cells, uint32_t &spos, uint32_t ipos, const uint8_t *data, const uint8_t *dlimit, std::vector::iterator &tpos, bool &context); bool generate_block_gap_2(uint32_t gap_cells, uint32_t &spos, uint32_t ipos, const uint8_t *data, const uint8_t *dlimit, std::vector::iterator &tpos, bool &context); bool generate_block_gap_3(uint32_t gap_cells, uint32_t &spos, uint32_t ipos, const uint8_t *data, const uint8_t *dlimit, std::vector::iterator &tpos, bool &context); bool generate_block_gap(uint32_t gap_type, uint32_t gap_cells, uint8_t pattern, uint32_t &spos, uint32_t ipos, const uint8_t *data, const uint8_t *dlimit, std::vector::iterator tpos, bool &context); bool generate_block(track_info *t, uint32_t idx, uint32_t ipos, std::vector &track, uint32_t &pos, uint32_t &dpos, uint32_t &gpos, uint32_t &spos, bool &context); uint32_t block_compute_real_size(track_info *t); void timing_set(std::vector &track, uint32_t start, uint32_t end, uint32_t time); bool generate_timings(track_info *t, std::vector &track, const std::vector &data_pos, const std::vector &gap_pos); void rotate(std::vector &track, uint32_t offset, uint32_t size); void mark_track_splice(std::vector &track, uint32_t offset, uint32_t size); bool generate_track(track_info *t, floppy_image *image); bool generate_tracks(floppy_image *image); bool parse(std::vector &data, floppy_image *image); }; extern const floppy_format_type FLOPPY_IPF_FORMAT; #endif /*IPF_DSK_H_*/