Move instance creation into Renderer class

CMakeLists.txt

@@ -6,6 +6,8 @@ list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 find_package(SDL2 REQUIRED)
 find_package(Vulkan REQUIRED)
 
-add_executable(Graph main.cpp)
+add_executable(Graph 
+    main.cpp
+    renderer.cpp)
 target_link_libraries(Graph PUBLIC SDL2::SDL2 SDL2::SDL2main ${Vulkan_LIBRARY})
 target_include_directories(Graph PUBLIC ${Vulkan_INCLUDE_DIRS})

main.cpp

@@ -1,18 +1,13 @@
-#include <iostream>
 #include <SDL.h>
-#include <vulkan/vulkan.h>
+
+#include "renderer.h"
 
 int main(int, char*[]) {
-    SDL_Window* window = SDL_CreateWindow("Graph", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_VULKAN);
+    SDL_Window* window = SDL_CreateWindow("Graph", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, 0);
     if(!window)
         return -1;
     
-    VkInstanceCreateInfo info = {};
-    
-    VkInstance instance;
-    vkCreateInstance(&info, nullptr, &instance);
-    if(!instance)
-        return -1;
+    Renderer* renderer = new Renderer();
     
     bool running = true;
     while(running) {
@@ -23,7 +18,7 @@ int main(int, char*[]) {
         }
     }
     
-    vkDestroyInstance(instance, nullptr);
+    delete renderer;
     
     SDL_DestroyWindow(window);
         

renderer.cpp

@@ -0,0 +1,12 @@
+#include "renderer.h"
+
+Renderer::Renderer() {
+    VkInstanceCreateInfo instanceCreateInfo = {};
+    instanceCreateInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
+    
+    vkCreateInstance(&instanceCreateInfo, nullptr, &instance_);
+}
+
+Renderer::~Renderer() {
+    vkDestroyInstance(instance_, nullptr);
+}

renderer.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <vulkan/vulkan.h>
+
+class Renderer {
+public:
+    Renderer();
+    ~Renderer();
+    
+private:
+    VkInstance instance_ = nullptr;
+};