Hazel游戏引擎（026）Hazel为静态库和零警告

文中若有代码、术语等错误，欢迎指正

前言

• 此节目的

  将Hazel改为静态库，清除警告

清除警告

• Hazel改为静态库链接

  • 解决方案下的premake

    workspace "Hazel"		-- sln文件名
    	architecture "x64"	
    	configurations{
            
            
    		"Debug",
    		"Release",
    		"Dist"
    	}
    	-- 启动项目
    	startproject "Sandbox"
    
    -- https://github.com/premake/premake-core/wiki/Tokens#value-tokens
    -- 组成输出目录:Debug-windows-x86_64
    outputdir = "%{cfg.buildcfg}-%{cfg.system}-%{cfg.architecture}"
    
    -- 包含相对解决方案的目录
    IncludeDir = {
            
            }
    IncludeDir["GLFW"] = "Hazel/vendor/GLFW/include"
    IncludeDir["Glad"] = "Hazel/vendor/Glad/include"
    IncludeDir["ImGui"] = "Hazel/vendor/imgui"
    IncludeDir["glm"] = "Hazel/vendor/glm"
    
    include "Hazel/vendor/GLFW"
    include "Hazel/vendor/Glad"
    include "Hazel/vendor/imgui"
    
    project "Hazel"		--Hazel项目
    	location "Hazel"--在sln所属文件夹下的Hazel文件夹
    	kind "StaticLib"--静态库lib
    	language "C++"
    	cppdialect "C++17"
    
    	-- On:代码生成的运行库选项是MTD,静态链接MSVCRT.lib库;
    	-- Off:代码生成的运行库选项是MDD,动态链接MSVCRT.dll库;打包后的exe放到另一台电脑上若无这个dll会报错
    	staticruntime "on"	
    
    	targetdir ("bin/" .. outputdir .. "/%{prj.name}") -- 输出目录
    	objdir ("bin-int/" .. outputdir .. "/%{prj.name}")-- 中间目录
    
    	-- 预编译头 
    	pchheader "hzpch.h"
    	pchsource "Hazel/src/hzpch.cpp"
    
    	-- 包含的所有h和cpp文件
    	files{
            
            
    		"%{prj.name}/src/**.h",
    		"%{prj.name}/src/**.cpp",
    		"%{prj.name}/vendor/glm/glm/**.hpp",
    		"%{prj.name}/vendor/glm/glm/**.inl"
    	}
    	defines{
            
            
    		"_CRT_SECURE_NO_WARNINGS"
    	}
    
    	-- 包含目录
    	includedirs{
            
            
    		"%{prj.name}/src",
    		"%{prj.name}/vendor/spdlog/include",
    		"%{IncludeDir.GLFW}",
    		"%{IncludeDir.Glad}",
    		"%{IncludeDir.ImGui}",
    		"%{IncludeDir.glm}"
    	}
    	links {
            
             
    		"GLFW",
    		"Glad",
    		"ImGui",
    		"opengl32.lib"
    	}
    		
    	-- 如果是window系统
    	filter "system:windows"
    		systemversion "latest"	-- windowSDK版本
    		-- 预处理器定义
    		defines{
            
            
    			"HZ_PLATFORM_WINDOWS",
    			"HZ_BUILD_DLL",
    			"GLFW_INCLUDE_NONE" -- 让GLFW不包含OpenGL
    		}
    	-- 不同配置下的预定义不同
    	filter "configurations:Debug"
    		defines "HZ_DEBUG"
    		runtime "Debug"
    		symbols "on"
    
    	filter "configurations:Release"
    		defines "HZ_RELEASE"
    		runtime "Release"
    		optimize "on"
    
    	filter "configurations:Dist"
    		defines "HZ_DIST"
    		runtime "Release"
    		optimize "on"
    
    project "Sandbox"
    	location "Sandbox"
    	kind "ConsoleApp"
    	language "C++"
    	cppdialect "C++17"
    	staticruntime "on"	
    
    	targetdir ("bin/" .. outputdir .. "/%{prj.name}")
    	objdir ("bin-int/" .. outputdir .. "/%{prj.name}")
    
    	files{
            
            
    		"%{prj.name}/src/**.h",
    		"%{prj.name}/src/**.cpp"
    	}
    	includedirs{
            
            
    		"Hazel/vendor/spdlog/include",
    		"Hazel/src",
    		"Hazel/vendor",
    		"%{IncludeDir.glm}"
    	}
    	-- 引用hazel
    	links{
            
            
    		"Hazel"
    	}
    
    	filter "system:windows"
    		systemversion "latest"
    
    		defines{
            
            
    			"HZ_PLATFORM_WINDOWS"
    		}
    
    	-- 不同配置下的预定义不同
    	filter "configurations:Debug"
    		defines "HZ_DEBUG"
    		runtime "Debug"
    		symbols "on"
    
    	filter "configurations:Release"
    		defines "HZ_RELEASE"
    		runtime "Release"
    		optimize "on"
    
    	filter "configurations:Dist"
    		defines "HZ_DIST"
    		runtime "Release"
    		optimize "on"
    

  • glad、imgui、glfw差不多

    project "Glad"
    	kind "StaticLib"
    	language "C"
    	staticruntime "on"
    
    	targetdir ("bin/" .. outputdir .. "/%{prj.name}")
    	objdir ("bin-int/" .. outputdir .. "/%{prj.name}")
    
    	files{
            
            
    		"include/glad/glad.h",
    		"include/KHR/khrplatform.h",
    		"src/glad.C",
    	}
    	includedirs{
            
            
    		"include" -- 为了glad.c直接#include <glad/glad.h>而不用，#include <include/glad/glad.h>
    	}
    
        filter "system:windows"
            systemversion "latest"
            staticruntime "On"
    
    	filter "configurations:Debug"
            runtime "Debug"
            symbols "on"
    
        filter "configurations:Release"
            runtime "Release"
            optimize "on"
    

  • Hazel改为lib静态库后，需要关闭导出函数定义

    Hazel/src/Hazel/Core.h

    #ifdef HZ_PLATFORM_WINDOWS
    	#if HZ_DYNAMIC_LINK
    		#ifdef HZ_BUILD_DLL
    			#define HAZEL_API __declspec(dllexport)
    		#else
    			#define HAZEL_API __declspec(dllimport)
    		#endif
    	#else
    		#define HAZEL_API 
    #endif
    #else
    	#error Hazel only supports Windows!
    #endif
    

• 处理字符串警告

  

  在解决方案下的premake全局宏定义

  project "Hazel"		--Hazel项目
  	.......
  
  	-- 包含的所有h和cpp文件
  	files{
        
        
  		"%{prj.name}/src/**.h",
  		"%{prj.name}/src/**.cpp",
  		"%{prj.name}/vendor/glm/glm/**.hpp",
  		"%{prj.name}/vendor/glm/glm/**.inl"
  	}
  	defines{
        
        
  		"_CRT_SECURE_NO_WARNINGS"
  	}
  

• 隐式转换警告

  

  改为

  io.DisplaySize = ImVec2(static_cast<float>(app.GetWindow().GetWidth()), static_cast<float>(app.GetWindow().GetHeight()));