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Implement ProDOS filetype $05 for writing

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2012-08-01 09:28:37 +00:00
parent 437270ea95
commit 6c6be6622d
3 changed files with 220 additions and 11 deletions
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17
src/com/webcodepro/applecommander/storage/os/prodos/ProdosFileEntry.java
View File

@ -207,6 +207,14 @@ public class ProdosFileEntry extends ProdosCommonEntry implements FileEntry {
return (filetype >= 0x80 && filetype <= 0x8f);
}
/**
* Indicate if this is a GEOS file.
*/
public boolean isForkedFile() {
int storageType = AppleUtil.getUnsignedByte(readFileEntry()[0x00]);
return ((storageType & 0x50) == 0x50);
}
/**
* Get the key pointer. This is either the data block (seedling),
* index block (sapling), or master index block (tree).
@ -499,6 +507,15 @@ public class ProdosFileEntry extends ProdosCommonEntry implements FileEntry {
getDisk().setFileData(this, data);
}
/**
* Set the file data, with the expectation that both data and resource forks
* are present (storage type $05). See:
* http://www.1000bit.it/support/manuali/apple/technotes/pdos/tn.pdos.25.html
*/
public void setFileData(byte[] dataFork, byte[] resourceFork) throws DiskFullException {
getDisk().setFileData(this, dataFork, resourceFork);
}
/**
* Get the suggested FileFilter. This appears to be operating system
* specific, so each operating system needs to implement some manner

173
src/com/webcodepro/applecommander/storage/os/prodos/ProdosFormatDisk.java
View File

@ -719,6 +719,178 @@ public class ProdosFormatDisk extends FormattedDisk {
}
}
/**
* Set the data associated with the specified ProdosFileEntry into sectors
* on the disk. Automatically grows the filesystem structures from seedling
* to sapling to tree.
*/
// TODO: the writing of a single fork can be factored out... it is very common to routines nearby.
protected void setFileData(ProdosFileEntry fileEntry, byte[] dataFork, byte[] resourceFork)
throws DiskFullException {
// compute free space and see if the data will fit!
int numberOfDataBlocks = (dataFork.length + BLOCK_SIZE - 1) / BLOCK_SIZE +
(resourceFork.length + BLOCK_SIZE - 1) / BLOCK_SIZE;
int numberOfBlocks = numberOfDataBlocks;
if (numberOfBlocks > 1) {
numberOfBlocks+= ((numberOfDataBlocks-1) / 256) + 1; // that's 128K
if (numberOfDataBlocks > 256) {
numberOfBlocks++;
}
}
if (numberOfBlocks > getFreeBlocks() + fileEntry.getBlocksUsed()) {
throw new DiskFullException(textBundle.
format("ProdosFormatDisk.NotEnoughSpaceOnDiskError", //$NON-NLS-1$
numberOfBlocks, getFreeBlocks()));
}
// free "old" data and just rewrite stuff...
freeBlocks(fileEntry);
byte[] bitmap = readVolumeBitMap();
int blockNumber = fileEntry.getKeyPointer();
if (blockNumber == 0) {
blockNumber = findFreeBlock(bitmap);
}
int blockCount = 0;
int extendedKeyBlockNumber = findFreeBlock(bitmap);
setBlockUsed(bitmap, extendedKeyBlockNumber);
byte[] extendedKeyBlockData = new byte[BLOCK_SIZE];
int indexBlockNumber = 0;
byte[] indexBlockData = null;
int masterIndexBlockNumber = 0;
byte[] masterIndexBlockData = new byte[BLOCK_SIZE];
int offset = 0;
numberOfDataBlocks = (dataFork.length + BLOCK_SIZE - 1) / BLOCK_SIZE ;
while (offset < dataFork.length) {
blockNumber = findFreeBlock(bitmap);
setBlockUsed(bitmap, blockNumber);
blockCount++;
byte[] blockData = new byte[BLOCK_SIZE];
int length = Math.min(BLOCK_SIZE, dataFork.length - offset);
System.arraycopy(dataFork,offset,blockData,0,length);
writeBlock(blockNumber, blockData);
if (numberOfDataBlocks > 1) {
// growing to a tree file
if (offset > 0 && (offset / BLOCK_SIZE) % 256 == 0) {
if (masterIndexBlockNumber == 0) {
masterIndexBlockNumber = findFreeBlock(bitmap);
setBlockUsed(bitmap, masterIndexBlockNumber);
blockCount++;
}
writeBlock(indexBlockNumber, indexBlockData);
indexBlockData = null;
indexBlockNumber = 0;
}
// new index block
if (indexBlockData == null) { // sapling files
indexBlockNumber = findFreeBlock(bitmap);
indexBlockData = new byte[BLOCK_SIZE];
setBlockUsed(bitmap, indexBlockNumber);
blockCount++;
// This is only used for Tree files (but we always record it):
int position = (offset / (BLOCK_SIZE * 256));
byte low = (byte)(indexBlockNumber % 256);
byte high = (byte)(indexBlockNumber / 256);
masterIndexBlockData[position] = low;
masterIndexBlockData[position + 0x100] = high;
}
// record last block position in index block
int position = (offset / BLOCK_SIZE) % 256;
byte low = (byte)(blockNumber % 256);
byte high = (byte)(blockNumber / 256);
indexBlockData[position] = low;
indexBlockData[position + 0x100] = high;
}
offset+= BLOCK_SIZE;
}
AppleUtil.setWordValue(extendedKeyBlockData,0x03,numberOfDataBlocks); // Set the number of blocks used
AppleUtil.set3ByteValue(extendedKeyBlockData,0x05, dataFork.length); // Set the number of bytes used
if (numberOfDataBlocks == 1) {
extendedKeyBlockData[0] = 1; // Set the seedling ProDOS storage type
AppleUtil.setWordValue(extendedKeyBlockData,1,blockNumber); // Set the master block number
} else if (numberOfDataBlocks <= 256) {
writeBlock(indexBlockNumber, indexBlockData);
AppleUtil.setWordValue(extendedKeyBlockData,1,indexBlockNumber); // Set the master block number
extendedKeyBlockData[0] = 2; // Set the sapling ProDOS storage type
} else {
writeBlock(indexBlockNumber, indexBlockData);
writeBlock(masterIndexBlockNumber, masterIndexBlockData);
AppleUtil.setWordValue(extendedKeyBlockData,1,masterIndexBlockNumber); // Set the master block number
extendedKeyBlockData[0] = 3; // Set the tree ProDOS storage type
}
blockCount++; // To account for extendedKeyBlock
offset = 0;
indexBlockNumber = 0;
indexBlockData = null;
masterIndexBlockNumber = 0;
numberOfDataBlocks = (resourceFork.length + BLOCK_SIZE - 1) / BLOCK_SIZE;
while (offset < resourceFork.length) {
if (blockCount > 0) blockNumber = findFreeBlock(bitmap);
setBlockUsed(bitmap, blockNumber);
blockCount++;
byte[] blockData = new byte[BLOCK_SIZE];
int length = Math.min(BLOCK_SIZE, resourceFork.length - offset);
System.arraycopy(resourceFork,offset,blockData,0,length);
writeBlock(blockNumber, blockData);
if (numberOfDataBlocks > 1) {
// growing to a tree file
if (offset > 0 && (offset / BLOCK_SIZE) % 256 == 0) {
if (masterIndexBlockNumber == 0) {
masterIndexBlockNumber = findFreeBlock(bitmap);
setBlockUsed(bitmap, masterIndexBlockNumber);
blockCount++;
}
writeBlock(indexBlockNumber, indexBlockData);
indexBlockData = null;
indexBlockNumber = 0;
}
// new index block
if (indexBlockData == null) { // sapling files
indexBlockNumber = findFreeBlock(bitmap);
indexBlockData = new byte[BLOCK_SIZE];
setBlockUsed(bitmap, indexBlockNumber);
blockCount++;
// This is only used for Tree files (but we always record it):
int position = (offset / (BLOCK_SIZE * 256));
byte low = (byte)(indexBlockNumber % 256);
byte high = (byte)(indexBlockNumber / 256);
masterIndexBlockData[position] = low;
masterIndexBlockData[position + 0x100] = high;
}
// record last block position in index block
int position = (offset / BLOCK_SIZE) % 256;
byte low = (byte)(blockNumber % 256);
byte high = (byte)(blockNumber / 256);
indexBlockData[position] = low;
indexBlockData[position + 0x100] = high;
}
offset+= BLOCK_SIZE;
}
AppleUtil.setWordValue(extendedKeyBlockData,0x103,numberOfDataBlocks); // Set the number of blocks used
AppleUtil.set3ByteValue(extendedKeyBlockData,0x105, resourceFork.length); // Set the number of bytes used
if (numberOfDataBlocks == 1) {
extendedKeyBlockData[0x100] = 1; // Set the seedling ProDOS storage type
AppleUtil.setWordValue(extendedKeyBlockData,0x101,blockNumber); // Set the master block number
} else if (numberOfDataBlocks <= 256) {
writeBlock(indexBlockNumber, indexBlockData);
AppleUtil.setWordValue(extendedKeyBlockData,0x101,indexBlockNumber); // Set the master block number
extendedKeyBlockData[0x100] = 2; // Set the sapling ProDOS storage type
} else {
writeBlock(indexBlockNumber, indexBlockData);
writeBlock(masterIndexBlockNumber, masterIndexBlockData);
AppleUtil.setWordValue(extendedKeyBlockData,0x101,masterIndexBlockNumber); // Set the master block number
extendedKeyBlockData[0x100] = 3; // Set the tree ProDOS storage type
}
writeBlock(extendedKeyBlockNumber, extendedKeyBlockData);
fileEntry.setKeyPointer(extendedKeyBlockNumber);
fileEntry.setBlocksUsed(blockCount);
fileEntry.setEofPosition(dataFork.length+resourceFork.length);
fileEntry.setLastModificationDate(new Date());
writeVolumeBitMap(bitmap);
}
/**
* Set the data associated with the specified ProdosFileEntry into sectors
* on the disk. Take GEOS file structures into account.
@ -1153,6 +1325,7 @@ public class ProdosFormatDisk extends FormattedDisk {
* @see com.webcodepro.applecommander.storage.DirectoryEntry#createDirectory()
*/
public DirectoryEntry createDirectory() throws DiskFullException {
System.out.println("What?!?");
throw new UnsupportedOperationException(textBundle.get("DirectoryCreationNotSupported")); //$NON-NLS-1$
}
}

41
src/com/webcodepro/shrinkit/Utilities.java
View File

@ -67,8 +67,11 @@ public class Utilities
ImageOrder imageOrder = new ProdosOrder(layout);
FormattedDisk[] disks = ProdosFormatDisk.create(fileName, "APPLECOMMANDER", imageOrder);
ProdosFormatDisk pdDisk = (ProdosFormatDisk)disks[0];
ThreadRecord dataFork, resourceFork;
for (HeaderBlock b : a.getHeaderBlocks()) {
ProdosFileEntry newFile = null;
dataFork = null;
resourceFork = null;
for (ThreadRecord r : b.getThreadRecords()) {
try
{
@ -83,19 +86,19 @@ public class Utilities
break;
case DATA_FORK:
// This is a normal-ish file
newFile = (ProdosFileEntry) pdDisk.createFile();
if (newFile != null) {
newFile.setFileData(readThread(r));
}
dataFork = r;
break;
case DISK_IMAGE:
dmgBuffer = readThread(r);
break;
case RESOURCE_FORK:
// This is a resource fork - we're talking GSOS FST here
resourceFork = r;
break;
case FILENAME:
break;
default:
System.out.println("ERRR, What?");
// Hmmm, this should not occur - but let us not fret about it.
break;
}
@ -105,13 +108,29 @@ public class Utilities
System.out.println(ex);
}
}
if (newFile != null) {
newFile.setFilename(b.getFilename());
newFile.setFiletype(b.getFileType());
newFile.setAuxiliaryType((int)b.getExtraType());
newFile.setCreationDate(b.getCreateWhen());
newFile.setLastModificationDate(b.getModWhen());
newFile = null;
try
{
if (dataFork != null) {
newFile = (ProdosFileEntry) pdDisk.createFile();
if (newFile != null) {
if (resourceFork != null) {
newFile.setFileData(readThread(dataFork),readThread(resourceFork));
newFile.setStorageType(0x05);
} else {
newFile.setFileData(readThread(dataFork));
}
newFile.setFilename(b.getFilename());
newFile.setFiletype(b.getFileType());
newFile.setAuxiliaryType((int)b.getExtraType());
newFile.setCreationDate(b.getCreateWhen());
newFile.setLastModificationDate(b.getModWhen());
newFile = null;
}
}
}
catch (Exception ex)
{
System.out.println(ex);
}
}
if (dmgBuffer != null)