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Fixed file offset calculation.

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This commit is contained in:
Maschell 2018-12-06 15:59:34 +01:00
parent 82a3d5253c
commit e8236e86d2
2 changed files with 8 additions and 13 deletions
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12
src/de/mas/wiiu/jnus/entities/fst/FST.java
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@ -34,13 +34,13 @@ import lombok.Getter;
public final class FST {
@Getter private final FSTEntry root = FSTEntry.getRootFSTEntry();
@Getter private final int unknown;
@Getter private final int sectorSize;
@Getter private final int contentCount;
@Getter private final Map<Integer, ContentFSTInfo> contentFSTInfos = new HashMap<>();
private FST(int unknown, int contentCount) {
this.unknown = unknown;
this.sectorSize = unknown;
this.contentCount = contentCount;
}
@ -55,15 +55,15 @@ public final class FST {
*/
public static FST parseFST(byte[] fstData, Map<Integer, Content> contentsMappedByIndex) {
if (!Arrays.equals(Arrays.copyOfRange(fstData, 0, 3), new byte[] { 0x46, 0x53, 0x54 })) {
throw new NullPointerException();
throw new RuntimeException("Failed to parse FST");
// return null;
// throw new IllegalArgumentException("Not a FST. Maybe a wrong key?");
}
int unknownValue = ByteUtils.getIntFromBytes(fstData, 0x04);
int sectorSize = ByteUtils.getIntFromBytes(fstData, 0x04);
int contentCount = ByteUtils.getIntFromBytes(fstData, 0x08);
FST result = new FST(unknownValue, contentCount);
FST result = new FST(sectorSize, contentCount);
int contentfst_offset = 0x20;
int contentfst_size = 0x20 * contentCount;
@ -94,7 +94,7 @@ public final class FST {
FSTEntry root = result.getRoot();
FSTService.parseFST(root, fstSection, nameSection, contentsMappedByIndex, contentFSTInfos);
FSTService.parseFST(root, fstSection, nameSection, contentsMappedByIndex, contentFSTInfos, sectorSize);
return result;
}

9
src/de/mas/wiiu/jnus/entities/fst/FSTService.java
View File

@ -33,7 +33,7 @@ public final class FSTService {
}
public static void parseFST(FSTEntry rootEntry, byte[] fstSection, byte[] namesSection, Map<Integer, Content> contentsByIndex,
Map<Integer, ContentFSTInfo> contentsFSTByIndex) {
Map<Integer, ContentFSTInfo> contentsFSTByIndex, int sectorSize) {
int totalEntries = ByteUtils.getIntFromBytes(fstSection, 0x08);
int level = 0;
@ -99,7 +99,7 @@ public final class FSTService {
break;
}
} else {
entryParam.setFileOffset(fileOffset << 5);
entryParam.setFileOffset(fileOffset * sectorSize);
entryParam.setFileSize(fileSize);
parent = fstEntryToOffsetMap.get(Entry[level - 1]);
@ -114,11 +114,6 @@ public final class FSTService {
if (content == null) {
log.warning("Content for FST Entry not found");
} else {
if (content.isHashed() && (content.getDecryptedFileSize() < (fileOffset << 5))) { // TODO: Figure out how this works...
entryParam.setFileOffset(fileOffset);
}
entryParam.setContent(content);
ContentFSTInfo contentFSTInfo = contentsFSTByIndex.get((int) contentIndex);