DualErr
FatParser::Read(
PGPUInt8 *buf,
PGPUInt64 pos,
PGPUInt32 nBytes,
GenericCallbackInfo *upInfo)
{
DualErr derr;
pgpAssertAddrValid(buf, PGPUInt8);
if (upInfo)
ReadAsync(buf, pos, nBytes, upInfo);
else
derr = ReadSync(buf, pos, nBytes);
return derr;
}
bool InputIsoFile::tryIsoType(u32 _size, s32 _offset, s32 _blockofs)
{
static u8 buf[2456];
m_blocksize = _size;
m_offset = _offset;
m_blockofs = _blockofs;
m_reader->SetDataOffset(_offset);
m_reader->SetBlockSize(_size);
if(ReadSync(buf, 16) < 0)
return false;
if (strncmp((char*)(buf+25), "CD001", 5)) // Not ISO 9660 compliant
return false;
m_type = (*(u16*)(buf+190) == 2048) ? ISOTYPE_CD : ISOTYPE_DVD;
return true; // We can deal with this.
}
DualErr
PGPdisk::Read(
PGPUInt8 *buf,
PGPUInt64 pos,
PGPUInt32 nBytes,
GenericCallbackInfo *upInfo)
{
DualErr derr;
pgpAssertAddrValid(buf, PGPUInt8);
pgpAssert(Mounted());
DebugOut("PGPdisk: Reading PGPdisk %u at pos %u nBlocks %u", GetDrive(),
(PGPUInt32) (pos/kDefaultBlockSize),
(PGPUInt32) (nBytes/kDefaultBlockSize));
if (upInfo)
ReadAsync(buf, pos, nBytes, upInfo);
else
derr = ReadSync(buf, pos, nBytes);
return derr;
}
void GzippedFileReader::BeginRead(void* pBuffer, uint sector, uint count) {
// No a-sync support yet, implement as sync
mBytesRead = ReadSync(pBuffer, sector, count);
return;
};
void BlockdumpFileReader::BeginRead(void* pBuffer, uint sector, uint count)
{
m_lresult = ReadSync(pBuffer, sector, count);
}