mirror of
https://github.com/dingusdev/dingusppc.git
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99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Definitions for working with various floppy images. */
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#ifndef FLOPPY_IMG_H
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#define FLOPPY_IMG_H
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#include <cinttypes>
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#include <string>
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#define BLOCK_SIZE 512 // size in bytes of a logical block
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#define MFM_HD_SIZE (BLOCK_SIZE*2880) // maximal size of a high-density floppy
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/** Floppy image types. */
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enum class FlopImgType {
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RAW, // raw image without metadata or low-level formatting
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DC42, // Disk Copy 4.2 image
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WOZ1, // WOZ v1 image with metadata and low-level data retained
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WOZ2, // WOZ v2 image with metadata and low-level data retained
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UNKNOWN, // invalid/unknown image format
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};
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/** Interface for floppy image converters. */
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class FloppyImgConverter {
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public:
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FloppyImgConverter() = default;
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virtual ~FloppyImgConverter() = default;
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virtual int calc_phys_params(void) = 0;
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virtual int get_raw_disk_data(char* buf) = 0;
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virtual int export_data(void) = 0;
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int get_data_size() { return this->data_size; };
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int get_disk_rec_method() { return this->rec_method; };
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int get_number_of_tracks() { return this->num_tracks; };
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int get_number_of_sides() { return this->num_sides; };
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int get_sectors_per_side() { return this->num_sectors; };
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int get_rec_density() { return this->density; };
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uint8_t get_format_byte() { return this->format_byte; };
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protected:
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std::string img_path;
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int img_size;
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int data_size; // disk data size without image format specific stuff
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int rec_method;
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int num_tracks;
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int num_sides;
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int num_sectors;
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int density;
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uint8_t format_byte; // GCR format byte from sector header
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};
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/** Converter for raw floppy images. */
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class RawFloppyImg : public FloppyImgConverter {
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public:
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RawFloppyImg(std::string& file_path);
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~RawFloppyImg() = default;
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int calc_phys_params(void);
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int get_raw_disk_data(char* buf);
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int export_data(void);
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};
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/** Converter for Disk Copy 4.2 images. */
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class DiskCopy42Img : public FloppyImgConverter {
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public:
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DiskCopy42Img(std::string& file_path);
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~DiskCopy42Img() = default;
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int calc_phys_params(void);
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int get_raw_disk_data(char* buf);
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int export_data(void);
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};
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extern FloppyImgConverter* open_floppy_image(std::string& img_path);
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#endif // FLOPPY_IMG_H
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