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git-svn-id: https://profuse.googlecode.com/svn/branches/v2@98 aa027e90-d47c-11dd-86d7-074df07e0730

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This commit is contained in:
ksherlock
2009-11-23 22:36:05 +00:00
parent f8ddc09a70
commit 9f0b5f1004
6 changed files with 100 additions and 16 deletions
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UniversalDiskImage.cpp
+18 -5
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@@ -1,18 +1,25 @@
#include "UniversalDiskImage.h"
#include "MappedFile.h"
#include "Buffer.h"
#inluce "Endian.h"
using namespace ProFUSE;
using namespace LittleEndian;
UniversalDiskImage::UniversalDiskImage(const char *name, bool readOnly) :
DiskImage(name, readOnly)
{
Validate(file());
const void *data = file()->fileData();
// flags. bit 31 = locked.
_flags = Read32(data, 0x10;
}
UniversalDiskImage::UniversalDiskImage(MappedFile *file) :
DiskImage(file)
{
_flags = 0;
}
UniversalDiskImage *UniversalDiskImage::Create(const char *name, size_t blocks)
@@ -75,7 +82,7 @@ void UniversalDiskImage::Validate(MappedFile *file)
#undef __METHOD__
#define __METHOD__ "DavexDiskImage::Validate"
uint8_t *data = (uint8_t *)file->fileData();
const void *data = file->fileData();
size_t size = file->fileSize();
bool ok = false;
unsigned blocks = 0;
@@ -88,13 +95,13 @@ void UniversalDiskImage::Validate(MappedFile *file)
if (std::memcmp(data, "2IMG", 4)) break;
// only prodos supported, for now...
if (file->read32(0x0c, LittleEndian) != 1) break;
if (Read32(data, 0x0c) != 1) break;
offset = file->read32(0x20, LittleEndian);
blocks = file->read32(0x14, LittleEndian);
offset = Read32(data, 0x20);
blocks = Read32(data, 0x14);
// file size == blocks * 512
if (file->read32(0x1c, LittleEndian) != blocks * 512) break;
if (Read32(data, 0x1c) != blocks * 512) break;
if (offset + blocks * 512 > size) break;
@@ -107,4 +114,10 @@ void UniversalDiskImage::Validate(MappedFile *file)
file->reset();
file->setOffset(offset);
file->setBlocks(blocks);
}
bool UniversalDiskImage::readOnly()
{
return (_flags & 0x8000000) || DiskImage::readOnly();
}