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minjaesong
2024-09-07 16:05:52 +09:00
parent a9e6aab94c
commit 68854d3573
3 changed files with 172 additions and 7 deletions
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55
src/net/torvald/terrarum/serialise/Common.kt
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@@ -20,10 +20,7 @@ import net.torvald.terrarum.savegame.ByteArray64Reader
import net.torvald.terrarum.utils.*
import net.torvald.terrarum.weather.*
import org.apache.commons.codec.digest.DigestUtils
import java.io.File
import java.io.InputStream
import java.io.Reader
import java.io.StringReader
import java.io.*
import java.math.BigInteger
import java.util.*
import java.util.zip.GZIPInputStream
@@ -562,6 +559,18 @@ object Common {
return unzipdBytes
}
private fun unzipG(bytes: ByteArray): ByteArray {
val unzipdBytes = ByteArray64()
val zi = GZIPInputStream(ByteArrayInputStream(bytes))
while (true) {
val byte = zi.read()
if (byte == -1) break
unzipdBytes.appendByte(byte.toByte())
}
zi.close()
return unzipdBytes.toByteArray()
}
private fun unzipZ(bytes: ByteArray64): ByteArray64 {
val unzipdBytes = ByteArray64()
val zi = ZstdInputStream(ByteArray64InputStream(bytes))
@@ -574,6 +583,18 @@ object Common {
return unzipdBytes
}
private fun unzipZ(bytes: ByteArray): ByteArray {
val unzipdBytes = ByteArray64()
val zi = ZstdInputStream(ByteArrayInputStream(bytes))
while (true) {
val byte = zi.read()
if (byte == -1) break
unzipdBytes.appendByte(byte.toByte())
}
zi.close()
return unzipdBytes.toByteArray()
}
private fun unzipS(bytes: ByteArray64): ByteArray64 {
val unzipdBytes = ByteArray64()
val zi = SnappyFramedInputStream(ByteArray64InputStream(bytes))
@@ -586,6 +607,18 @@ object Common {
return unzipdBytes
}
private fun unzipS(bytes: ByteArray): ByteArray {
val unzipdBytes = ByteArray64()
val zi = SnappyFramedInputStream(ByteArrayInputStream(bytes))
while (true) {
val byte = zi.read()
if (byte == -1) break
unzipdBytes.appendByte(byte.toByte())
}
zi.close()
return unzipdBytes.toByteArray()
}
/*private fun unzipNull(bytes: ByteArray64): ByteArray64 {
return bytes.sliceArray64(4 until bytes.size)
}*/
@@ -604,6 +637,20 @@ object Common {
}
}
fun unzip(bytes: ByteArray): ByteArray {
val header = bytes[0].toUint().shl(24) or bytes[1].toUint().shl(16) or bytes[2].toUint().shl(8) or bytes[3].toUint()
// to save yourself from the curiosity: load time of the null compression is no faster than the snappy
return when (header) {
in 0x1F8B0800..0x1F8B08FF -> unzipG(bytes)
0x28B52FFD -> unzipZ(bytes)
0xFF060000.toInt() -> unzipS(bytes)
// 0xFEEDDA7A.toInt() -> unzipNull(bytes)
else -> throw IllegalArgumentException("Unknown archive with header ${header.toHex()}")
}
}
fun unasciiToBytes(reader: Reader): ByteArray64 {
val unasciidBytes = ByteArray64()