重构项目，现支持多线程操作

CMakeLists.txt

@@ -2,9 +2,31 @@ cmake_minimum_required(VERSION 3.31)
 
 project(expkg)
 
-# set(CMAKE_RUNTIME_OUTPUT_DIRECTORY  ${CMAKE_BINARY_DIR}/bin)
-
 set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-add_subdirectory(expkg)
-add_subdirectory(testApp)
+# 默认 Release 构建（Debug 模式下 GIF/PNG 编码慢 3-5 倍）
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
+endif()
+
+# 第三方依赖
+add_subdirectory(vendor/lz4/build/cmake)
+
+# 源文件（CONFIGURE_DEPENDS: 文件增删时自动重新配置）
+file(GLOB_RECURSE SRC_SOURCE CONFIGURE_DEPENDS src/*.cpp)
+file(GLOB STB_SOURCE CONFIGURE_DEPENDS vendor/stb/*.cpp)
+
+# 可执行文件
+add_executable(${PROJECT_NAME} ${SRC_SOURCE} ${STB_SOURCE})
+
+# MSVC 默认编码设为 UTF-8
+if(MSVC)
+    target_compile_options(${PROJECT_NAME} PRIVATE /utf-8)
+endif()
+
+# 依赖与头文件路径
+target_link_libraries(${PROJECT_NAME} PRIVATE lz4)
+target_include_directories(${PROJECT_NAME}
+    PRIVATE vendor/stb vendor/gif-h src
+)