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Add ZLIB for Windows (#768)
Added ZLIB for Windows. Packets for character creation are now compressed on windows before sending and ZCompression can now be used on Windows.
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@ -160,7 +160,6 @@ elseif (UNIX)
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set(INCLUDED_DIRECTORIES ${INCLUDED_DIRECTORIES} "thirdparty/libbcrypt/include/bcrypt")
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endif()
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include_directories(${ZLIB_INCLUDE_DIRS})
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# Add binary directory as an include directory
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include_directories(${PROJECT_BINARY_DIR})
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@ -115,9 +115,14 @@
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"displayName": "CI Tests on windows",
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"description": "Runs all tests on a windows configuration",
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"configuration": "RelWithDebInfo",
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"execution": {
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"jobs": 2
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},
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"execution": {
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"jobs": 2
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},
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"filter": {
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"exclude": {
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"name": "((example)|(minigzip))+"
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}
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},
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"output": {
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"outputOnFailure": true
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}
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@ -23,5 +23,31 @@ target_link_libraries(dCommon bcrypt)
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if (UNIX)
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find_package(ZLIB REQUIRED)
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target_link_libraries(dCommon ZLIB::ZLIB)
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endif()
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elseif (WIN32)
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include(FetchContent)
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# TODO Keep an eye on the zlib repository for an update to disable testing. Don't forget to update CMakePresets
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FetchContent_Declare(
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zlib
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URL https://github.com/madler/zlib/archive/refs/tags/v1.2.11.zip
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URL_HASH MD5=9d6a627693163bbbf3f26403a3a0b0b1
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)
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# Disable warning about no project version.
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set(CMAKE_POLICY_DEFAULT_CMP0048 NEW)
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# Disable warning about the minimum version of cmake used for bcrypt being deprecated in the future
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set(CMAKE_WARN_DEPRECATED OFF CACHE BOOL "" FORCE)
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FetchContent_MakeAvailable(zlib)
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set(ZLIB_INCLUDE_DIRS ${zlib_SOURCE_DIR} ${zlib_BINARY_DIR})
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set_target_properties(zlib PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${ZLIB_INCLUDE_DIRS}")
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add_library(ZLIB::ZLIB ALIAS zlib)
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else ()
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message(
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FATAL_ERROR
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"This platform does not have a way to use zlib.\nCreate an issue on GitHub with your build system so it can be configured."
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)
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endif ()
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target_link_libraries(dCommon ZLIB::ZLIB)
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@ -1,7 +1,5 @@
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#include "ZCompression.h"
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#ifndef _WIN32
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#include <zlib.h>
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namespace ZCompression {
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@ -27,7 +25,6 @@ namespace ZCompression {
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}
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deflateEnd(&zInfo); // zlib function
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return(nRet);
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}
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int32_t Decompress(const uint8_t* abSrc, int32_t nLenSrc, uint8_t* abDst, int32_t nLenDst, int32_t& nErr) {
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@ -48,26 +45,6 @@ namespace ZCompression {
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}
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inflateEnd(&zInfo); // zlib function
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return(nRet);
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/*
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z_stream zInfo = { 0 };
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zInfo.total_in = zInfo.avail_in = nLenSrc;
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zInfo.total_out = zInfo.avail_out = nLenDst;
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zInfo.next_in = const_cast<Bytef*>(abSrc);
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zInfo.next_out = const_cast<Bytef*>(abDst);
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int nRet = -1;
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nErr = inflateInit(&zInfo); // zlib function
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if (nErr == Z_OK) {
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nErr = inflate(&zInfo, Z_FINISH); // zlib function
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if (nErr == Z_STREAM_END) {
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nRet = zInfo.total_out;
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}
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}
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inflateEnd(&zInfo); // zlib function
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return(nRet); // -1 or len of output
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*/
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}
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}
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#endif
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@ -2,10 +2,6 @@
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#include <cstdint>
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#include "dPlatforms.h"
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#ifndef DARKFLAME_PLATFORM_WIN32
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namespace ZCompression {
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int32_t GetMaxCompressedLength(int32_t nLenSrc);
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@ -14,4 +10,3 @@ namespace ZCompression {
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int32_t Decompress(const uint8_t* abSrc, int32_t nLenSrc, uint8_t* abDst, int32_t nLenDst, int32_t& nErr);
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}
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#endif
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@ -164,27 +164,35 @@ void WorldPackets::SendCreateCharacter(const SystemAddress& sysAddr, Entity* ent
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delete name;
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delete reputation;
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#ifdef _WIN32
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bitStream.Write<uint32_t>(data.GetNumberOfBytesUsed() + 1);
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bitStream.Write<uint8_t>(0);
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bitStream.Write((char*)data.GetData(), data.GetNumberOfBytesUsed());
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#else
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//Compress the data before sending:
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const int reservedSize = 5 * 1024 * 1024;
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uint8_t compressedData[reservedSize];
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const uint32_t reservedSize = ZCompression::GetMaxCompressedLength(data.GetNumberOfBytesUsed());
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uint8_t* compressedData = new uint8_t[reservedSize];
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// TODO There should be better handling here for not enough memory...
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if (!compressedData) return;
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size_t size = ZCompression::Compress(data.GetData(), data.GetNumberOfBytesUsed(), compressedData, reservedSize);
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assert(size <= reservedSize);
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bitStream.Write<uint32_t>(size + 9); //size of data + header bytes (8)
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bitStream.Write<uint8_t>(1); //compressed boolean, true
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bitStream.Write<uint32_t>(data.GetNumberOfBytesUsed());
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bitStream.Write<uint32_t>(size);
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/**
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* In practice, this warning serves no purpose for us. We allocate the max memory needed on the heap
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* and then compress the data. In the off chance that the compression actually increases the size,
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* an assertion is done to prevent bad data from being saved or sent.
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*/
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#pragma warning(disable:6385) // C6385 Reading invalid data from 'compressedData'.
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for (size_t i = 0; i < size; i++)
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bitStream.Write(compressedData[i]);
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#endif
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#pragma warning(default:6385)
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PacketUtils::SavePacket("chardata.bin", (const char*)bitStream.GetData(), static_cast<uint32_t>(bitStream.GetNumberOfBytesUsed()));
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// PacketUtils::SavePacket("chardata.bin", (const char*)bitStream.GetData(), static_cast<uint32_t>(bitStream.GetNumberOfBytesUsed()));
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SEND_PACKET;
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delete[] compressedData;
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Game::logger->Log("WorldPackets", "Sent CreateCharacter for ID: %llu", entity->GetObjectID());
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}
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