mirror of https://github.com/akuker/RASCSI.git
126 lines
2.3 KiB
C++
126 lines
2.3 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator PiSCSI
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// for Raspberry Pi
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//
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// Copyright (C) 2001-2006 ＰＩ．(ytanaka@ipc-tokai.or.jp)
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// Copyright (C) 2014-2020 GIMONS
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// Copyright (C) akuker
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//
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// Licensed under the BSD 3-Clause License.
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// See LICENSE file in the project root folder.
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//
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//---------------------------------------------------------------------------
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#include "cd_track.h"
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#include <cassert>
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void CDTrack::Init(int track, uint32_t first, uint32_t last)
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{
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assert(!valid);
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assert(track >= 1);
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assert(first < last);
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// Set and enable track number
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track_no = track;
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valid = true;
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// Remember LBA
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first_lba = first;
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last_lba = last;
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}
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void CDTrack::SetPath(bool cdda, string_view path)
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{
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assert(valid);
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// CD-DA or data
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audio = cdda;
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// Remember the path
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imgpath = path;
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}
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string CDTrack::GetPath() const
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{
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assert(valid);
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return imgpath;
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}
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//---------------------------------------------------------------------------
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//
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// Gets the start of LBA
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//
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//---------------------------------------------------------------------------
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uint32_t CDTrack::GetFirst() const
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{
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assert(valid);
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assert(first_lba < last_lba);
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return first_lba;
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}
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//---------------------------------------------------------------------------
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//
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// Get the end of LBA
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//
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//---------------------------------------------------------------------------
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uint32_t CDTrack::GetLast() const
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{
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assert(valid);
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assert(first_lba < last_lba);
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return last_lba;
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}
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uint32_t CDTrack::GetBlocks() const
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{
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assert(valid);
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assert(first_lba < last_lba);
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// Calculate from start LBA and end LBA
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return last_lba - first_lba + 1;
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}
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int CDTrack::GetTrackNo() const
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{
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assert(valid);
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assert(track_no >= 1);
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return track_no;
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}
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//---------------------------------------------------------------------------
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//
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// Is valid block
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//
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//---------------------------------------------------------------------------
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bool CDTrack::IsValid(uint32_t lba) const
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{
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// false if the track itself is invalid
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if (!valid) {
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return false;
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}
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// If the block is BEFORE the first block
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if (lba < first_lba) {
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return false;
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}
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// If the block is AFTER the last block
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if (last_lba < lba) {
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return false;
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}
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// This track is valid
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return true;
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}
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bool CDTrack::IsAudio() const
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{
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assert(valid);
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return audio;
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}
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