package com.jpexs.decompiler.flash.iggy.streams;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.ConsoleHandler;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
/**
*
* @author JPEXS
*/
public class IggyIndexParser {
private static Logger LOGGER = Logger.getLogger(IggyIndexParser.class.getName());
/*static PrintWriter pw;
static {
try {
pw = new PrintWriter("d:\\Dropbox\\jpexs-laptop\\iggi\\extraxtdir_orig\\index2b.txt");
} catch (FileNotFoundException ex) {
Logger.getLogger(IggyIndexParser.class.getName()).log(Level.SEVERE, null, ex);
}
LOGGER.setLevel(Level.ALL);
LOGGER.addHandler(new Handler() {
@Override
public void publish(LogRecord record) {
pw.println("" + record.getMessage());
}
@Override
public void flush() {
pw.flush();
}
@Override
public void close() throws SecurityException {
pw.close();
}
});
}
*/
/**
* Parser for index data. It creates table of indices and table of offsets
*
* @param indexStream Stream of index
* @param indexTableEntry Output index tabke
* @param offsets Output list of offsets
* @throws IOException on error
*/
public static void parseIndex(boolean is64, ReadDataStreamInterface indexStream, List<Integer> indexTableEntry, List<Long> offsets) throws IOException {
int indexTableSize = indexStream.readUI8();
int[] indexTable = new int[indexTableSize];
for (int i = 0; i < indexTableSize; i++) {
int offset = indexStream.readUI8();
LOGGER.fine(String.format("index_table_entry: %d", offset));
indexTable[i] = offset;
indexTableEntry.add(offset);
int num = indexStream.readUI8();
for (int j = 0; j < num; j++) {
int locOffset = indexStream.readUI8();
int type = indexStream.readUI8();
LOGGER.finer(String.format("- local offset: %d, type: %d", locOffset, type));
}
}
long offset = 0;
int code;
String tabs = "\t\t\t\t";
LOGGER.finer(String.format("-- OFFSET: 0" + tabs));
while ((code = indexStream.readUI8()) > -1) {
LOGGER.finer(String.format("Code = 0x%02X", code));
if (code < 0x80) // 0-0x7F
{
LOGGER.finest("0-0x7F: code is directly an index to the index_table");
// code is directly an index to the index_table
if (code >= indexTableSize) {
LOGGER.severe(String.format("< 0x80: index is greater than index_table_size. %x > %x", code, indexTableSize));
return;
}
offset += indexTable[code];
LOGGER.finest(String.format("LENGTH = indexTable[%d] = %d", code, indexTable[code]));
} else if (code < 0xC0) // 0x80-BF
{
LOGGER.finest("0x80-BF: table[0..255]*(code-0x7F)");
int index;
if ((index = indexStream.readUI8()) < 0) {
LOGGER.severe(String.format("< 0xC0: Cannot read index."));
return;
}
if (index >= indexTableSize) {
LOGGER.severe(String.format("< 0xC0: index is greater than index_table_size. %x > %x", index, indexTableSize));
return;
}
int n = code - 0x7F;
LOGGER.finest(String.format("index = %d, n = code - 0x7F = %d", index, n));
LOGGER.finest(String.format("LENGTH = indexTable[index] * n = indexTable[%d] * %d = %d", index, n, indexTable[index] * n));
offset += indexTable[index] * n;
} else if (code < 0xD0) // 0xC0-0xCF
{
LOGGER.finest("0xC0-CF: code*2-0x17E");
offset += ((code * 2) - 0x17E);
LOGGER.finest(String.format("LENGTH = (code * 2) - 0x17E = (0x%02X * 2) - 0x17E = %d", code, ((code * 2) - 0x17E)));
} else if (code < 0xE0) // 0xD0-0xDF
{
LOGGER.finest("0xD0-0xDF: platform based");
// Code here depends on plattform[0], we are assuming it is 1, as we checked in load function
int i = code & 0xF;
int n8;
int n;
if ((n8 = indexStream.readUI8()) < 0) {
LOGGER.severe(String.format("< 0xE0: Cannot read n."));
return;
}
n = n8 + 1;
LOGGER.finest(String.format("i=%X", i));
LOGGER.finest(String.format("n=%d", n));
if (is64) {
if (i <= 2) {
offset += 8 * n; // Ptr type
LOGGER.finest(String.format("LENGTH = 8 * n = 8 * %d = %d", n, 8 * n));
} else if (i <= 4) {
offset += 2 * n;
LOGGER.finest(String.format("LENGTH = 2 * n = 2 * %d = %d", n, 2 * n));
} else if (i == 5) {
offset += 4 * n;
LOGGER.finest(String.format("LENGTH = 4 * n = 4 * %d = %d", n, 4 * n));
} else if (i == 6) {
offset += 8 * n; // 64 bits type
LOGGER.finest(String.format("LENGTH = 8 * n = 8 * %d = %d", n, 8 * n));
} else {
LOGGER.severe(String.format("< 0xE0: Invalid value for i (%x %x)", i, code));
}
} else {
switch (i) {
case 2:
offset += 4 * n; // Ptr type
LOGGER.finest(String.format("LENGTH = 4 * n = 4 * %d = %d", n, 4 * n));
break;
case 4:
offset += 2 * n;
LOGGER.finest(String.format("LENGTH = 2 * n = 2 * %d = %d", n, 2 * n));
break;
case 5:
offset += 4 * n; // 32 bits type
LOGGER.finest(String.format("LENGTH = 4 * n = 4 * %d = %d", n, 4 * n));
break;
case 6:
offset += 8 * n;
LOGGER.finest(String.format("LENGTH = 8 * n = 8 * %d = %d", n, 8 * n));
break;
default:
LOGGER.severe(String.format("< 0xE0: invalid value for i (%x %x)", i, code));
}
}
} else if (code == 0xFC) {
LOGGER.finest(String.format("0xFC: SKIP 1 "));
indexStream.seek(1, SeekMode.CUR);
} else if (code == 0xFD) {
LOGGER.finest(String.format("0xFD: 0..255, skip 2 * 0..255 "));
int n, m;
if ((n = indexStream.readUI8()) < 0) {
LOGGER.severe(String.format("0xFD: Cannot read n."));
return;
}
LOGGER.finest(String.format("n = %d", n));
if ((m = indexStream.readUI8()) < 0) {
LOGGER.severe(String.format("0xFD: Cannot read m."));
return;
}
LOGGER.finest(String.format("m = %d", m));
offset += n;
LOGGER.finest(String.format("LENGTH = n = %d", n));
StringBuilder locOffStr = new StringBuilder();
StringBuilder platStr = new StringBuilder();
for (int i = 0; i < m; i++) {
int localOffset = indexStream.readUI8();
int platformType = indexStream.readUI8();
if (i > 0) {
locOffStr.append(", ");
platStr.append(", ");
}
locOffStr.append(String.format("0x%02X", localOffset));
platStr.append(platformType);
LOGGER.finest(String.format("- localOffset 0x%02X, platformType %d", localOffset, platformType));
}
LOGGER.finer(String.format("stream.writeLengthCustom(%s,new int[]{%s},new int[]{%s}", n, locOffStr, platStr));
//indexStream.seek(m * 2, SeekMode.CUR);
//LOGGER.finest(String.format("SKIP m * 2 = skip %d * 2 = %d", m, m * 2));
} else if (code == 0xFE) {
LOGGER.finest(String.format("0xFD: 0..255 + 1 "));
int n8;
int n;
if ((n8 = indexStream.readUI8()) < 0) {
LOGGER.severe(String.format("0xFE: Cannot read n."));
return;
}
LOGGER.finest(String.format("n8 = %d", n8));
n = n8 + 1;
offset += n;
LOGGER.finest(String.format("LENGTH = n8 + 1 = %d + 1 = %d", n8, n));
} else if (code == 0xFF) {
LOGGER.finest(String.format("0xFF: 32bit "));
long n;
if ((n = indexStream.readUI32()) < 0) {
LOGGER.severe(String.format("0xFF: Cannot read n."));
return;
}
offset += n;
LOGGER.finest(String.format("LENGTH = n = %d", n));
} else {
LOGGER.warning(String.format("Unrecognized code: %x", code));
}
LOGGER.finer(String.format("-- OFFSET: %d" + tabs, offset));
offsets.add(offset);
}
}
}