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diskimage.cpp
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diskimage.cpp
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#include "diskimage.h"
#include "zlib.h"
#include <QFileInfo>
#include "respeqtsettings.h"
#include <QDir>
#include "atarifilesystem.h"
#include "diskeditdialog.h"
#include <QtDebug>
/* DiskGeometry */
DiskGeometry::DiskGeometry()
:QObject()
{
m_isDoubleSided = false;
m_tracksPerSide = 0;
m_sectorsPerTrack = 0;
m_bytesPerSector = 0;
m_totalSize = 0;
m_sectorCount = 0;
}
DiskGeometry::DiskGeometry(const DiskGeometry &other)
:QObject()
{
initialize(other);
}
void DiskGeometry::initialize(const DiskGeometry &other)
{
m_isDoubleSided = other.isDoubleSided();
m_tracksPerSide = other.tracksPerSide();
m_sectorsPerTrack = other.sectorsPerTrack();
m_bytesPerSector = other.bytesPerSector();
m_sectorCount = other.sectorCount();
m_totalSize = other.totalSize();
}
void DiskGeometry::initialize(bool aIsDoubleSided, quint8 aTracksPerSide, quint16 aSectorsPerTrack, quint16 aBytesPerSector)
{
m_isDoubleSided = aIsDoubleSided;
m_tracksPerSide = aTracksPerSide;
m_sectorsPerTrack = aSectorsPerTrack;
m_bytesPerSector = aBytesPerSector;
m_sectorCount = (m_isDoubleSided + 1) * m_tracksPerSide * m_sectorsPerTrack;
if (m_bytesPerSector == 256) {
m_totalSize = m_sectorCount * 128;
if (m_totalSize > 384) {
m_totalSize += (m_bytesPerSector - 128) * (m_sectorCount - 3);
}
} else {
m_totalSize = m_sectorCount * m_bytesPerSector;
}
}
void DiskGeometry::initialize(uint aTotalSize, quint16 aBytesPerSector)
{
bool ds;
quint8 tps;
quint16 spt;
if (aTotalSize == 92160 && aBytesPerSector == 128) {
ds = false;
tps = 40;
spt = 18;
} else if (aTotalSize == 133120 && aBytesPerSector == 128) {
ds = false;
tps = 40;
spt = 26;
} else if (aTotalSize == 183936 && aBytesPerSector == 256) {
ds = false;
tps = 40;
spt = 18;
} else if (aTotalSize == 368256 && aBytesPerSector == 256) {
ds = true;
tps = 40;
spt = 18;
} else {
if (aBytesPerSector == 256) {
if (aTotalSize <= 384) {
spt = (aTotalSize + 127) / 128;
} else {
spt = (aTotalSize + 384 + 255) / 256;
}
} else {
spt = (aTotalSize + aBytesPerSector - 1) / aBytesPerSector;
}
ds = false;
tps = 1;
}
initialize(ds, tps, spt, aBytesPerSector);
}
void DiskGeometry::initialize(uint aTotalSize)
{
bool ds;
quint8 tps;
quint16 spt;
quint16 bps;
if (aTotalSize == 92160) {
ds = false;
tps = 40;
spt = 18;
bps = 128;
} else if (aTotalSize == 133120) {
ds = false;
tps = 40;
spt = 26;
bps = 128;
} else if (aTotalSize == 183936) {
ds = false;
tps = 40;
spt = 18;
bps = 256;
} else if (aTotalSize == 368256) {
ds = true;
tps = 40;
spt = 18;
bps = 256;
} else {
if ((aTotalSize - 384) % 256 == 0) {
spt = (aTotalSize - 384) / 256;
bps = 256;
} else {
spt = (aTotalSize + 127) / 128;
bps = 128;
}
ds = false;
tps = 1;
}
initialize(ds, tps, spt, bps);
}
void DiskGeometry::initialize(const QByteArray &percom)
{
quint8 aTracksPerSide = (quint8)percom.at(0);
quint16 aSectorsPerTrack = (quint8)percom.at(2) * 256 + (quint8)percom.at(3);
bool aIsDoubleSided = (quint8)percom.at(4);
quint16 aBytesPerSector = (quint8)percom.at(6) * 256 + (quint8)percom.at(7);
initialize(aIsDoubleSided, aTracksPerSide, aSectorsPerTrack, aBytesPerSector);
}
bool DiskGeometry::isEqual(const DiskGeometry &other)
{
return
m_isDoubleSided == other.isDoubleSided() &&
m_tracksPerSide == other.tracksPerSide() &&
m_sectorsPerTrack == other.sectorsPerTrack() &&
m_bytesPerSector == other.bytesPerSector();
}
bool DiskGeometry::isStandardSD() const
{
return (!m_isDoubleSided) && m_tracksPerSide == 40 && m_sectorsPerTrack == 18 && m_bytesPerSector == 128;
}
bool DiskGeometry::isStandardED() const
{
return (!m_isDoubleSided) && m_tracksPerSide == 40 && m_sectorsPerTrack == 26 && m_bytesPerSector == 128;
}
bool DiskGeometry::isStandardDD() const
{
return (!m_isDoubleSided) && m_tracksPerSide == 40 && m_sectorsPerTrack == 18 && m_bytesPerSector == 256;
}
bool DiskGeometry::isStandardQD() const
{
return m_isDoubleSided && m_tracksPerSide == 40 && m_sectorsPerTrack == 18 && m_bytesPerSector == 256;
}
quint16 DiskGeometry::bytesPerSector(quint16 sector)
{
quint16 result = m_bytesPerSector;
if (result == 256 && sector <= 3) {
result = 128;
}
return result;
}
QByteArray DiskGeometry::toPercomBlock()
{
DiskGeometry temp;
QByteArray percom(12, 0);
percom[0] = m_tracksPerSide;
percom[1] = 1; // Step rate
percom[2] = m_sectorsPerTrack / 256;
percom[3] = m_sectorsPerTrack % 256;
percom[4] = m_isDoubleSided;
percom[5] = (m_bytesPerSector != 128) * 4 | (m_tracksPerSide == 77) * 2;
percom[6] = m_bytesPerSector / 256;
percom[7] = m_bytesPerSector % 256;
percom[8] = 0xff;
temp.initialize(percom);
return percom;
}
QString DiskGeometry::humanReadable() const
{
QString result, density, sides;
if (isStandardSD()) {
result = tr("SD Diskette");
} else if (isStandardED()) {
result = tr("ED Diskette");
} else if (isStandardDD()) {
result = tr("DD Diskette");
} else if (isStandardQD()) {
result = tr("QD Diskette");
} else if (m_tracksPerSide == 1) {
if (m_bytesPerSector == 128) {
result = tr("%1 sector SD HardDrive").arg(m_sectorCount);
} else if (m_bytesPerSector == 256) {
result = tr("%1 sector DD HardDrive").arg(m_sectorCount);
} else {
result = tr("%1 sector, %2 bytes/sector HardDrive").arg(m_sectorCount).arg(m_bytesPerSector);
}
} else {
result = tr("%1 %2 tracks/side, %3 sectors/track, %4 bytes/sector diskette")
.arg(m_isDoubleSided?tr("DS"):tr("SS"))
.arg(m_tracksPerSide)
.arg(m_sectorsPerTrack)
.arg(m_bytesPerSector);
}
return tr("%1 (%2k)").arg(result).arg((m_totalSize + 512) / 1024);
}
/* SimpleDiskImage */
SimpleDiskImage::SimpleDiskImage(SioWorker *worker)
: SioDevice(worker)
{
m_editDialog = 0;
}
SimpleDiskImage::~SimpleDiskImage()
{
if (isOpen()) {
close();
}
}
bool SimpleDiskImage::openAtr(const QString &fileName)
{
QFile *sourceFile;
if (m_originalImageType == FileTypes::Atr) {
sourceFile = new QFile(fileName);
} else {
sourceFile = new GzFile(fileName);
}
bool repaired = false;
// Try to open the source file
if (!sourceFile->open(QFile::ReadOnly)) {
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(sourceFile->errorString());
delete sourceFile;
return false;
}
// Try to read the header
QByteArray header;
header = sourceFile->read(16);
if (header.size() != 16) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot read the header: %1.").arg(sourceFile->errorString()));
delete sourceFile;
return false;
}
// Validate the magic number
quint16 magic = ((quint8)header[0]) + ((quint8)header[1]) * 256;
if (magic != 0x0296) {
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(tr("Not a valid ATR file."));
delete sourceFile;
return false;
}
// Decode image metadata
quint16 sizeLo = ((quint8)header[2]) + ((quint8)header[3]) * 256;
quint16 secSize = ((quint8)header[4]) + ((quint8)header[5]) * 256;
quint32 sizeHi = ((quint8)header[6]) + ((quint8)header[7]) * 256;
quint64 size = (sizeLo + sizeHi * 65536) * 16;
// Try to create the temporary file
file.setFileTemplate(QDir::temp().absoluteFilePath("respeqt-temp-XXXXXX"));
if (!file.open()) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot create temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
delete sourceFile;
return false;
}
// Copy the source file to temporary file
while (!sourceFile->atEnd()) {
int bufsize = 16777216;
QByteArray buffer = sourceFile->read(bufsize);
if (buffer.length() != bufsize && !sourceFile->atEnd()) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot read from file: %1.").arg(sourceFile->errorString()));
delete sourceFile;
file.close();
return false;
}
if (file.write(buffer) != buffer.length()) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot write to temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
delete sourceFile;
file.close();
return false;
}
}
quint64 imageSize = file.size();
// Check if the reported image size is consistent with the actual size
//
if (size != imageSize) {
qWarning() << "!w" << tr("Image size of '%1' is reported as %2 bytes in the header but it's actually %3.")
.arg(fileName)
.arg(size)
.arg(imageSize);
size = imageSize;
repaired = true;
}
// Validate sector size
if (secSize != 128 && secSize != 256 && secSize != 512 && secSize != 8192) {
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(tr("Unknown sector size (%1).").arg(secSize));
delete sourceFile;
file.close();
return false;
}
// Some .atr file sizes are larger than the reported size
// in the header. This may be due to extraneous bytes added to the end
// of the file by various file conversion utilities
// Those files usually still work fine when loaded to a drive.
// So only reject a file if the actual size of the file is < size specified
// in .atr file header ---
// Validate the image size
bool sizeValid = true;
if (secSize == 256) {
// Handle double density images
if (size <= 384) {
// Handle double density images with less than 4 sectors
if (size % 128 != 0) {
sizeValid = false;
}
} else {
// Handle double density images with 4 or more sectors
if ((size + 384) % 256 != 0) {
//
if (size / 256 < 720 ) {
sizeValid = false;
}
}
}
} else {
// Handle non-double density images
if (size % secSize != 0) {
// Single Density
if ((size < 133120) && (size / secSize < 720 )) {
sizeValid = false;
} else {
// Enhanced Density
if ((size >= 133120) && (size / secSize < 1040 )) {
sizeValid = false;
}
}
}
}
if (!sizeValid) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Invalid image size (%1).").arg(size));
file.close();
delete sourceFile;
return false;
}
// Validate disk geometry
DiskGeometry geometry;
geometry.initialize(size, secSize);
if (geometry.sectorCount() > 65535) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Too many sectors in the image (%1).").arg(geometry.sectorCount()));
file.close();
delete sourceFile;
return false;
}
// Check unsupported ATR extensions
if (header[8] || header[9] || header[9] || header[10] || header[11] || header[12] || header[13] || header[14] || header[15]) {
qWarning() << "!w" << tr("The file '%1' has some unrecognized fields in its header.")
.arg(fileName);
}
if (!file.resize(size)) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot resize temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
file.close();
delete sourceFile;
return false;
}
// Update the image information
m_geometry.initialize(geometry);
refreshNewGeometry();
m_isReadOnly = sourceFile->isWritable();
m_originalFileName = fileName;
m_originalFileHeader = header;
m_isModified = repaired;
m_isUnmodifiable = false;
m_isUnnamed = false;
delete sourceFile;
return true;
}
bool SimpleDiskImage::openXfd(const QString &fileName)
{
QFile *sourceFile;
if (m_originalImageType == FileTypes::Xfd) {
sourceFile = new QFile(fileName);
} else {
sourceFile = new GzFile(fileName);
}
if (!sourceFile->open(QFile::ReadOnly)) {
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(sourceFile->errorString());
delete sourceFile;
return false;
}
file.setFileTemplate(QDir::temp().absoluteFilePath("respeqt-temp-XXXXXX"));
if (!file.open()) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot create temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
delete sourceFile;
return false;
}
while (!sourceFile->atEnd()) {
int bufsize = 16777216;
QByteArray buffer = sourceFile->read(bufsize);
if (buffer.length() != bufsize && !sourceFile->atEnd()) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot read from file: %1.").arg(sourceFile->errorString()));
delete sourceFile;
return false;
}
if (file.write(buffer) != buffer.length()) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Cannot write to temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
delete sourceFile;
return false;
}
}
quint64 size = file.size();
if ((size % 128) != 0) {
qCritical() << "!e" << tr("Cannot open '%1': %2")
.arg(fileName)
.arg(tr("Invalid image size (%1).").arg(size));
delete sourceFile;
file.close();
return false;
}
m_geometry.initialize(size);
refreshNewGeometry();
m_originalFileHeader = QByteArray(16, 0);
m_isReadOnly = sourceFile->isWritable();
m_originalFileName = fileName;
m_isModified = false;
m_isUnmodifiable = false;
m_isUnnamed = false;
delete sourceFile;
return true;
}
bool SimpleDiskImage::openDcm(const QString &fileName)
{
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(tr("DCM images are not supported yet."));
return false;
}
bool SimpleDiskImage::openScp(const QString &fileName)
{
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(tr("SCP images are not supported yet."));
return false;
}
bool SimpleDiskImage::openDi(const QString &fileName)
{
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(tr("DI images are not supported yet."));
return false;
}
bool SimpleDiskImage::saveAtr(const QString &fileName)
{
if (m_originalFileHeader.size() != 16) {
m_originalFileHeader = QByteArray(16, 0);
}
// Put signature
m_originalFileHeader[0] = 0x96;
m_originalFileHeader[1] = 0x02;
// Encode meta data
m_originalFileHeader[2] = (m_geometry.totalSize() >> 4) % 256;
m_originalFileHeader[3] = (m_geometry.totalSize() >> 12) % 256;
m_originalFileHeader[4] = m_geometry.bytesPerSector() % 256;
m_originalFileHeader[5] = m_geometry.bytesPerSector() / 256;
m_originalFileHeader[6] = (m_geometry.totalSize() >> 20) % 256;
m_originalFileHeader[7] = (m_geometry.totalSize() >> 28) % 256;
// Try to open the output file
QFile *outputFile;
if (m_originalImageType == FileTypes::Atr) {
outputFile = new QFile(fileName);
} else {
outputFile = new GzFile(fileName);
}
if (!outputFile->open(QFile::WriteOnly | QFile::Truncate)) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(outputFile->errorString());
delete outputFile;
return false;
}
// Try to write the header
if (outputFile->write(m_originalFileHeader) != 16) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(outputFile->errorString());
delete outputFile;
return false;
}
// Try to copy the temporary file back
if (!file.reset()) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(tr("Cannot rewind temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
delete outputFile;
return false;
}
while (file.bytesAvailable() != 0) {
int bufsize = 16777216;
if (bufsize > file.bytesAvailable()) {
bufsize = file.bytesAvailable();
}
QByteArray buffer = file.read(bufsize);
if (buffer.length() != bufsize) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(tr("Cannot read from temporay file %1: %2").arg(file.fileName()).arg(file.errorString()));
delete outputFile;
return false;
}
if (outputFile->write(buffer) != bufsize) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(outputFile->errorString());
delete outputFile;
return false;
}
}
DiskGeometry guess;
guess.initialize(m_geometry.totalSize(), m_geometry.bytesPerSector());
if (!guess.isEqual(m_geometry)) {
qWarning() << "!w" << tr("Detailed geometry information will be lost when reopening '%1' due to ATR file format limitations.").arg(fileName);
}
m_originalFileName = fileName;
m_isModified = false;
m_isUnmodifiable = false;
m_isUnnamed = false;
emit statusChanged(m_deviceNo);
delete outputFile;
return true;
}
bool SimpleDiskImage::saveXfd(const QString &fileName)
{
DiskGeometry guess;
guess.initialize(m_geometry.totalSize());
if (!guess.isEqual(m_geometry)) {
if (guess.bytesPerSector() == m_geometry.bytesPerSector()) {
qWarning() << "!w" << tr("Detailed disk geometry information will be lost when reopening '%1' due to XFD file format limitations.")
.arg(fileName);
} else {
qCritical() << "!e" << tr("XFD file format cannot handle this disk geometry. Try saving '%1' as ATR.").arg(fileName);
return false;
}
}
// Try to open the output file
QFile outputFile(fileName);
if (!outputFile.open(QFile::WriteOnly | QFile::Truncate)) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(outputFile.errorString());
return false;
}
// Try to copy the temporary file back
if (!file.reset()) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(tr("Cannot rewind temporary file '%1': %2").arg(file.fileName()).arg(file.errorString()));
return false;
}
while (file.bytesAvailable() != 0) {
int bufsize = 16777216;
if (bufsize > file.bytesAvailable()) {
bufsize = file.bytesAvailable();
}
QByteArray buffer = file.read(bufsize);
if (buffer.length() != bufsize) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(tr("Cannot read from temporay file %1: %2").arg(file.fileName()).arg(file.errorString()));
return false;
}
if (outputFile.write(buffer) != bufsize) {
qCritical() << "!e" << tr("Cannot save '%1': %2")
.arg(fileName)
.arg(outputFile.errorString());
return false;
}
}
m_originalFileName = fileName;
m_originalImageType = FileTypes::Xfd;
m_originalFileHeader.clear();
m_isModified = false;
m_isUnmodifiable = false;
m_isUnnamed = false;
emit statusChanged(m_deviceNo);
return true;
}
bool SimpleDiskImage::saveDcm(const QString &fileName)
{
qCritical() << "!e" << tr("Cannot save '%1': %2").arg(fileName).arg(tr("Saving DCM images is not supported yet."));
return false;
}
bool SimpleDiskImage::saveScp(const QString &fileName)
{
qCritical() << "!e" << tr("Cannot save '%1': %2").arg(fileName).arg(tr("Saving SCP images is not supported yet."));
return false;
}
bool SimpleDiskImage::saveDi(const QString &fileName)
{
qCritical() << "!e" << tr("Cannot save '%1': %2").arg(fileName).arg(tr("Saving DI images is not supported yet."));
return false;
}
bool SimpleDiskImage::saveAs(const QString &fileName)
{
if (fileName.endsWith(".ATR", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::Atr;
return saveAtr(fileName);
} else if (fileName.endsWith(".XFD", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::Xfd;
return saveXfd(fileName);
} else if (fileName.endsWith(".DCM", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::Dcm;
return saveDcm(fileName);
} else if (fileName.endsWith(".SCP", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::Scp;
return saveScp(fileName);
} else if (fileName.endsWith(".DI", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::Di;
return saveDi(fileName);
} else if (fileName.endsWith(".ATZ", Qt::CaseInsensitive) || fileName.endsWith(".ATR.GZ", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::AtrGz;
return saveAtr(fileName);
} else if (fileName.endsWith(".XFZ", Qt::CaseInsensitive) || fileName.endsWith(".XFD.GZ", Qt::CaseInsensitive)) {
m_originalImageType = FileTypes::XfdGz;
return saveXfd(fileName);
} else {
qCritical() << "!e" << tr("Cannot save '%1': %2").arg(fileName).arg(tr("Unknown file extension."));
return false;
}
}
bool SimpleDiskImage::save()
{
switch (m_originalImageType) {
case FileTypes::Atr:
case FileTypes::AtrGz:
return saveAtr(m_originalFileName);
break;
case FileTypes::Xfd:
case FileTypes::XfdGz:
return saveXfd(m_originalFileName);
break;
case FileTypes::Dcm:
case FileTypes::DcmGz:
return saveDcm(m_originalFileName);
break;
case FileTypes::Scp:
case FileTypes::ScpGz:
return saveScp(m_originalFileName);
break;
case FileTypes::Di:
case FileTypes::DiGz:
return saveDi(m_originalFileName);
break;
default:
qCritical() << "!e" << tr("Cannot save '%1': %2").arg(m_originalFileName).arg(tr("Unknown file type."));
return false;
}
}
bool SimpleDiskImage::open(const QString &fileName, FileTypes::FileType type)
{
m_originalImageType = type;
switch (type) {
case FileTypes::Atr:
case FileTypes::AtrGz:
return openAtr(fileName);
break;
case FileTypes::Xfd:
case FileTypes::XfdGz:
return openXfd(fileName);
break;
case FileTypes::Dcm:
case FileTypes::DcmGz:
return openDcm(fileName);
break;
case FileTypes::Scp:
case FileTypes::ScpGz:
return openScp(fileName);
break;
case FileTypes::Di:
case FileTypes::DiGz:
return openDi(fileName);
break;
default:
qCritical() << "!e" << tr("Cannot open '%1': %2").arg(fileName).arg(tr("Unknown file type."));
return false;
}
}
bool SimpleDiskImage::create(int untitledName)
{
file.setFileTemplate(QDir::temp().absoluteFilePath("respeqt-temp-XXXXXX"));
if (!file.open()) {
qCritical() << "!e" << tr("Cannot create new image: Cannot create temporary file '%2': %3.")
.arg(file.fileName())
.arg(file.errorString());
return false;
}
m_geometry.initialize(file.size());
refreshNewGeometry();
m_originalFileHeader.clear();
m_isReadOnly = false;
m_originalFileName = tr("Untitled image %1").arg(untitledName);
m_originalImageType = FileTypes::Atr;
m_isModified = false;
m_isUnmodifiable = false;
m_isUnnamed = true;
return true;
}
void SimpleDiskImage::reopen()
{
close();
open(m_originalFileName, m_originalImageType);
}
void SimpleDiskImage::close()
{
if (m_editDialog) {
delete m_editDialog;
}
file.close();
}
void SimpleDiskImage::handleCommand(quint8 command, quint16 aux)
{
switch (command) {
case 0x22: // Format ED
{
if (!sio->port()->writeCommandAck()) {
return;
}
if (m_isReadOnly) {
sio->port()->writeError();
qWarning() << "!w" << tr("[%1] Format ED denied.").arg(deviceName());
return;
}
m_newGeometry.initialize(false, 40, 26, 128);
if (format(m_newGeometry)) {
QByteArray data(128, 0);
data[0] = data[1] = 0xFF;
sio->port()->writeComplete();
sio->port()->writeDataFrame(data);
qDebug() << "!n" << tr("[%1] Format ED.").arg(deviceName());
} else {
sio->port()->writeError();
qCritical() << "!e" << tr("[%1] Format ED failed.").arg(deviceName());
}
break;
}
case 0x3F: // Speed poll
{
if (!sio->port()->writeCommandAck()) {
return;
}
sio->port()->writeComplete();
QByteArray speed(1, 0);
speed[0] = sio->port()->speedByte();
sio->port()->writeDataFrame(speed);
qDebug() << "!n" << tr("[%1] Speed poll.").arg(deviceName());
break;
}
case 0x4e: // Get PERCOM block
{
if (!sio->port()->writeCommandAck()) {
return;
}
QByteArray percom = m_newGeometry.toPercomBlock();
sio->port()->writeComplete();
sio->port()->writeDataFrame(percom);
qDebug() << "!n" << tr("[%1] Get PERCOM block (%2).")
.arg(deviceName())
.arg(m_newGeometry.humanReadable());
break;
}
case 0x4f: // Set PERCOM block
{
if (!sio->port()->writeCommandAck()) {
return;
}
QByteArray percom = sio->port()->readDataFrame(12);
if (percom.isEmpty()) {
sio->port()->writeDataNak();
return;
}
sio->port()->writeDataAck();
m_newGeometry.initialize(percom);
sio->port()->writeComplete();
qDebug() << tr("[%1] Set PERCOM block (%2).")
.arg(deviceName())
.arg(m_newGeometry.humanReadable());
break;
}
case 0x66: // Format with custom sector skewing
{
if (!sio->port()->writeCommandAck()) {
return;
}
QByteArray percom = sio->port()->readDataFrame(128);
if (percom.isEmpty()) {
sio->port()->writeDataNak();
break;
}
sio->port()->writeDataAck();
m_newGeometry.initialize(percom);
if (!m_isReadOnly) {
if (!format(m_newGeometry)) {
qCritical() << "!e" << tr("[%1] Format with custom sector skewing failed.")
.arg(deviceName());
break;
}
sio->port()->writeComplete();
qWarning() << "!w" << tr("[%1] Format with custom sector skewing (%2).")
.arg(deviceName())
.arg(m_newGeometry.humanReadable());
} else {
sio->port()->writeError();
qWarning() << "!w" << tr("[%1] Format with custom sector skewing denied.")
.arg(deviceName());
}
break;
}
case 0x21: // Format
{
if (!sio->port()->writeCommandAck()) {
return;
}
if (!m_isReadOnly) {
format(m_newGeometry);
QByteArray data(m_newGeometry.bytesPerSector(), 0);
data[0] = 0xff;
data[1] = 0xff;
sio->port()->writeComplete();
sio->port()->writeDataFrame(data);
qWarning() << "!w" << tr("[%1] Format.").arg(deviceName());
} else {
sio->port()->writeError();
qWarning() << "!w" << tr("[%1] Format denied.").arg(deviceName());
break;
}
break;
}
case 0x50: // Write sector and verify
case 0x57: // Write sector without verifying
{
if (aux >= 1 && aux <= m_geometry.sectorCount()) {
if (!sio->port()->writeCommandAck()) {
return;
}
QByteArray data = sio->port()->readDataFrame(m_geometry.bytesPerSector(aux));
if (!data.isEmpty()) {
sio->port()->writeDataAck();
if (m_isReadOnly) {
sio->port()->writeError();
qWarning() << "!w" << tr("[%1] Write sector %2 denied.").arg(deviceName()).arg(aux);
break;
}
if (writeSector(aux, data)) {
sio->port()->writeComplete();
qDebug() << "!n" << tr("[%1] Write sector %2 (%3 bytes).").arg(deviceName()).arg(aux).arg(data.size());
} else {
sio->port()->writeError();
qCritical() << "!e" << tr("[%1] Write sector %2 failed.")
.arg(deviceName())
.arg(aux);
}
} else {
qCritical() << "!e" << tr("[%1] Write sector %2 data frame failed.")
.arg(deviceName())
.arg(aux);
sio->port()->writeDataNak();
}
} else {
sio->port()->writeCommandNak();
qWarning() << "!w" << tr("[%1] Write sector %2 NAKed.")
.arg(deviceName())
.arg(aux);
}
break;
}
case 0x52: // Read sector
{
if (aux >= 1 && aux <= m_geometry.sectorCount()) {
if (!sio->port()->writeCommandAck()) {
return;
}
QByteArray data;
if (readSector(aux, data)) {
sio->port()->writeComplete();
sio->port()->writeDataFrame(data);
qDebug() << "!n" << tr("[%1] Read sector %2 (%3 bytes).")
.arg(deviceName())
.arg(aux)
.arg(data.size());
} else {
qCritical() << "!e" << tr("[%1] Read sector %2 failed.")
.arg(deviceName())
.arg(aux);
sio->port()->writeError();
}
} else {