diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Protocol/ChunkDataSerializer.cpp | 62 | ||||
| -rw-r--r-- | src/Protocol/ChunkDataSerializer.h | 2 | ||||
| -rw-r--r-- | src/Protocol/Protocol18x.cpp | 8 | ||||
| -rw-r--r-- | src/Protocol/ProtocolRecognizer.cpp | 2 |
4 files changed, 36 insertions, 38 deletions
diff --git a/src/Protocol/ChunkDataSerializer.cpp b/src/Protocol/ChunkDataSerializer.cpp index 61df24c31..a133cc0e3 100644 --- a/src/Protocol/ChunkDataSerializer.cpp +++ b/src/Protocol/ChunkDataSerializer.cpp @@ -45,7 +45,7 @@ const AString & cChunkDataSerializer::Serialize(int a_Version, int a_ChunkX, int { case RELEASE_1_2_5: Serialize29(data); break; case RELEASE_1_3_2: Serialize39(data); break; - case RELEASE_1_8_0: Serialize80(data, a_ChunkX, a_ChunkZ); break; + case RELEASE_1_8_0: Serialize47(data, a_ChunkX, a_ChunkZ); break; // TODO: Other protocol versions may serialize the data differently; implement here default: @@ -181,43 +181,41 @@ void cChunkDataSerializer::Serialize39(AString & a_Data) -void cChunkDataSerializer::Serialize80(AString & a_Data, int a_ChunkX, int a_ChunkZ) +void cChunkDataSerializer::Serialize47(AString & a_Data, int a_ChunkX, int a_ChunkZ) { - // TODO: Do not copy data and then compress it; rather, compress partial blocks of data (zlib *can* stream) - - // Blocktypes converter (1.8 included the meta into the blocktype): - unsigned char Blocks[cChunkDef::NumBlocks * 2]; - size_t LastOffset = 0; - for (size_t Index = 0; Index < cChunkDef::NumBlocks; Index++) - { - BLOCKTYPE BlockType = m_BlockTypes[Index] & 0xFF; - NIBBLETYPE BlockMeta = m_BlockMetas[Index / 2] >> ((Index & 1) * 4) & 0x0f; - Blocks[LastOffset] = (unsigned char)(BlockType << 4) | BlockMeta; - Blocks[LastOffset + 1] = (unsigned char)(BlockType >> 4); - LastOffset += 2; - } - - const int BiomeDataSize = cChunkDef::Width * cChunkDef::Width; - const int BlockLightOffset = sizeof(Blocks); - const int SkyLightOffset = BlockLightOffset + sizeof(m_BlockLight); - const int BiomeOffset = SkyLightOffset + sizeof(m_BlockSkyLight); - const int DataSize = BiomeOffset + BiomeDataSize; - - // Temporary buffer for the composed data: - char AllData [DataSize]; - memcpy(AllData, Blocks, sizeof(Blocks)); - memcpy(AllData + BlockLightOffset, m_BlockLight, sizeof(m_BlockLight)); - memcpy(AllData + SkyLightOffset, m_BlockSkyLight, sizeof(m_BlockSkyLight)); - memcpy(AllData + BiomeOffset, m_BiomeData, BiomeDataSize); + // This function returns the fully compressed packet (including packet size), not the raw packet! + // Create the packet: cByteBuffer Packet(512 KiB); Packet.WriteVarInt(0x21); // Packet id (Chunk Data packet) Packet.WriteBEInt(a_ChunkX); Packet.WriteBEInt(a_ChunkZ); Packet.WriteBool(true); // "Ground-up continuous", or rather, "biome data present" flag Packet.WriteBEShort((short) 0xffff); // We're aways sending the full chunk with no additional data, so the bitmap is 0xffff - Packet.WriteVarInt(DataSize); // Chunk size - Packet.WriteBuf(AllData, DataSize); // Chunk data + + // Write the chunk size: + const int BiomeDataSize = cChunkDef::Width * cChunkDef::Width; + UInt32 ChunkSize = ( + (cChunkDef::NumBlocks * 2) + // Block meta + type + sizeof(m_BlockLight) + // Block light + sizeof(m_BlockSkyLight) + // Block sky light + BiomeDataSize // Biome data + ); + Packet.WriteVarInt(ChunkSize); + + // Write the block types to the packet: + for (size_t Index = 0; Index < cChunkDef::NumBlocks; Index++) + { + BLOCKTYPE BlockType = m_BlockTypes[Index] & 0xFF; + NIBBLETYPE BlockMeta = m_BlockMetas[Index / 2] >> ((Index & 1) * 4) & 0x0f; + Packet.WriteByte((unsigned char)(BlockType << 4) | BlockMeta); + Packet.WriteByte((unsigned char)(BlockType >> 4)); + } + + // Write the rest: + Packet.WriteBuf(m_BlockLight, sizeof(m_BlockLight)); + Packet.WriteBuf(m_BlockSkyLight, sizeof(m_BlockSkyLight)); + Packet.WriteBuf(m_BiomeData, BiomeDataSize); AString PacketData; Packet.ReadAll(PacketData); @@ -236,13 +234,13 @@ void cChunkDataSerializer::Serialize80(AString & a_Data, int a_ChunkX, int a_Chu else { AString PostData; - Buffer.WriteVarInt(Packet.GetUsedSpace() + 1); + Buffer.WriteVarInt((UInt32)Packet.GetUsedSpace() + 1); Buffer.WriteVarInt(0); Buffer.ReadAll(PostData); Buffer.CommitRead(); a_Data.clear(); - a_Data.resize(PostData.size() + PacketData.size()); + a_Data.reserve(PostData.size() + PacketData.size()); a_Data.append(PostData.data(), PostData.size()); a_Data.append(PacketData.data(), PacketData.size()); } diff --git a/src/Protocol/ChunkDataSerializer.h b/src/Protocol/ChunkDataSerializer.h index 3caa89d41..a082ef3d8 100644 --- a/src/Protocol/ChunkDataSerializer.h +++ b/src/Protocol/ChunkDataSerializer.h @@ -24,7 +24,7 @@ protected: void Serialize29(AString & a_Data); // Release 1.2.4 and 1.2.5 void Serialize39(AString & a_Data); // Release 1.3.1 to 1.7.10 - void Serialize80(AString & a_Data, int a_ChunkX, int a_ChunkZ); // Release 1.8 + void Serialize47(AString & a_Data, int a_ChunkX, int a_ChunkZ); // Release 1.8 public: enum diff --git a/src/Protocol/Protocol18x.cpp b/src/Protocol/Protocol18x.cpp index 293080166..4b78bc4cd 100644 --- a/src/Protocol/Protocol18x.cpp +++ b/src/Protocol/Protocol18x.cpp @@ -75,6 +75,7 @@ Implements the 1.8.x protocol classes: const int MAX_ENC_LEN = 512; // Maximum size of the encrypted message; should be 128, but who knows... +const uLongf MAX_COMPRESSED_PACKET_LEN = 200 KiB; // Maximum size of compressed packets. @@ -1513,11 +1514,10 @@ void cProtocol180::SendWindowProperty(const cWindow & a_Window, int a_Property, bool cProtocol180::CompressPacket(const AString & a_Packet, AString & a_CompressedData) { // Compress the data: - const uLongf CompressedMaxSize = 200000; - char CompressedData[CompressedMaxSize]; + char CompressedData[MAX_COMPRESSED_PACKET_LEN]; uLongf CompressedSize = compressBound(a_Packet.size()); - if (CompressedSize >= CompressedMaxSize) + if (CompressedSize >= MAX_COMPRESSED_PACKET_LEN) { ASSERT(!"Too high packet size."); return false; @@ -1541,7 +1541,7 @@ bool cProtocol180::CompressPacket(const AString & a_Packet, AString & a_Compress Buffer.CommitRead(); a_CompressedData.clear(); - a_CompressedData.resize(LengthData.size() + CompressedSize); + a_CompressedData.reserve(LengthData.size() + CompressedSize); a_CompressedData.append(LengthData.data(), LengthData.size()); a_CompressedData.append(CompressedData, CompressedSize); return true; diff --git a/src/Protocol/ProtocolRecognizer.cpp b/src/Protocol/ProtocolRecognizer.cpp index 4516975bf..a5b745c2f 100644 --- a/src/Protocol/ProtocolRecognizer.cpp +++ b/src/Protocol/ProtocolRecognizer.cpp @@ -955,7 +955,7 @@ bool cProtocolRecognizer::TryRecognizeLengthlessProtocol(void) m_Protocol = new cProtocol132(m_Client); return true; } - //case PROTO_VERSION_1_4_2: + case PROTO_VERSION_1_4_2: case PROTO_VERSION_1_4_4: { m_Protocol = new cProtocol142(m_Client); |