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Compression: revert to zlib per request (compatibility)

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This commit is contained in:
jack
2025-09-04 23:18:26 +02:00
parent a486644b7f
commit d9884eaf87
1 changed files with 4 additions and 4 deletions
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bitchat/Utils/CompressionUtil.swift
+4 -4
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@@ -13,7 +13,7 @@ struct CompressionUtil {
// Compression threshold - don't compress if data is smaller than this // Compression threshold - don't compress if data is smaller than this
static let compressionThreshold = TransportConfig.compressionThresholdBytes // bytes static let compressionThreshold = TransportConfig.compressionThresholdBytes // bytes
// Compress data using LZFSE for speed on Apple platforms // Compress data using zlib algorithm (most compatible)
static func compress(_ data: Data) -> Data? { static func compress(_ data: Data) -> Data? {
// Skip compression for small data // Skip compression for small data
guard data.count >= compressionThreshold else { return nil } guard data.count >= compressionThreshold else { return nil }
@@ -27,7 +27,7 @@ struct CompressionUtil {
return compression_encode_buffer( return compression_encode_buffer(
destinationBuffer, data.count, destinationBuffer, data.count,
sourcePtr, data.count, sourcePtr, data.count,
nil, COMPRESSION_LZFSE nil, COMPRESSION_ZLIB
) )
} }
@@ -36,7 +36,7 @@ struct CompressionUtil {
return Data(bytes: destinationBuffer, count: compressedSize) return Data(bytes: destinationBuffer, count: compressedSize)
} }
// Decompress LZFSE compressed data // Decompress zlib compressed data
static func decompress(_ compressedData: Data, originalSize: Int) -> Data? { static func decompress(_ compressedData: Data, originalSize: Int) -> Data? {
let destinationBuffer = UnsafeMutablePointer<UInt8>.allocate(capacity: originalSize) let destinationBuffer = UnsafeMutablePointer<UInt8>.allocate(capacity: originalSize)
defer { destinationBuffer.deallocate() } defer { destinationBuffer.deallocate() }
@@ -46,7 +46,7 @@ struct CompressionUtil {
return compression_decode_buffer( return compression_decode_buffer(
destinationBuffer, originalSize, destinationBuffer, originalSize,
sourcePtr, compressedData.count, sourcePtr, compressedData.count,
nil, COMPRESSION_LZFSE nil, COMPRESSION_ZLIB
) )
} }