hanchenyangyang / ue4-protobuf Goto Github PK

This is an Unreal Engine 4 plugin that integrates Protobuf into the project without requiring you to add system PATH or anything else.

1. add the plugin to the project and enable it.
2. add the following property to build.cs of modules :

PublicDependencyModuleNames.Add("Protobuf");

4. Create .proto file into project source code folder
5. Launch the Project in Editor, Click the Protoc button.

• Protobuf v3.21.5
• Protobuf v3.5.1

For protobuf v3.21.x

1. Clone to disk git clone https://github.com/protocolbuffers/protobuf
2. Switch to your desired branchs/tags git checkout <branchs/tags>

1. Use adapte script to convert protobuf source
2. Copy the conversion result to Source/Protobuf/ThirdParty/google in ue4-protobuf dir

1. Go to protobuf repo dir
2. Alter source code
   • src/google/protobuf/compiler/cpp/file.cc -> FileGenerator::GenerateSourceIncludes

   format(
   "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n"
   "// source: $filename$\n"
   +    "\n"
   +    "#ifdef _MSC_VER\n"
   +    "#\tpragma warning(disable: 4125)\n"
   +    "#\tpragma warning(disable: 4647)\n"
   +    "#\tpragma warning(disable: 4668)\n"
   +    "#\tpragma warning(disable: 4800)\n"
   +    "#\tpragma warning(disable: 4946)\n"
   +    "#endif\n"
   +    "\n"
   "#include $1$\n"
   

3. Run cmd to complie protoc.exe

   cd <protobuf repo dir>
   
   call <Microsoft Visual Studio Program File>\VC\Auxiliary\Build\vcvars64.bat
   @REM For example: call "%ProgramFiles%\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvars64.bat"
   
   cmake ./cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=./ -DBUILD_SHARED_LIBS=OFF -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_BUILD_CONFORMANCE=OFF -Dprotobuf_BUILD_EXAMPLES=OFF -Dprotobuf_BUILD_PROTOC_BINARIES=ON -Dprotobuf_MSVC_STATIC_RUNTIME=OFF
   
   nmake -nologo install
   

4. Copy the /bin/protoc.exe binary file in protobuf repo dir to /Source/Protobuf/ThirdParty/bin/ in ue4-protobuf dir