96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
#include <glad/glad.h> // Include GLAD before GLFW
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#include <GLFW/glfw3.h>
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#include <iostream>
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// ImGui includes
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#include "imgui/imgui.h"
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#include "imgui/imgui_impl_glfw.h"
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#include "imgui/imgui_impl_opengl3.h"
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// Callback to resize the viewport when the window is resized
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void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
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(void)window; // Unused parameter
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glViewport(0, 0, width, height);
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}
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int main() {
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// 1. Initialize GLFW
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glfwInit();
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// Set OpenGL version to 3.3 Core Profile - For MacOS, you may need to uncomment the next line
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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#ifdef __APPLE__
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const char* glsl_version = "#version 330";
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Required on Mac
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#endif
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// 2. Create the Window
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GLFWwindow *window = glfwCreateWindow(800, 600, "LearnOpenGL", NULL, NULL);
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if (window == NULL) {
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std::cout << "Failed to create GLFW window" << std::endl;
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glfwTerminate();
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return -1;
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}
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glfwMakeContextCurrent(window);
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glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
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// 3. Initialize GLAD (Load function pointers)
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if (!gladLoadGLLoader(reinterpret_cast<GLADloadproc>(glfwGetProcAddress))) {
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std::cout << "Failed to initialize GLAD" << std::endl;
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return -1;
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}
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// --- ImGui Setup Start ---
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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ImGuiIO &io = ImGui::GetIO();
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(void)io;
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// Setup Dear ImGui style
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ImGui::StyleColorsDark();
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// ImGui::StyleColorsLight();
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// Setup Platform/Renderer backends
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ImGui_ImplGlfw_InitForOpenGL(window, true);
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ImGui_ImplOpenGL3_Init(glsl_version);
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// 4. The Render Loop
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while (!glfwWindowShouldClose(window)) {
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// Input
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if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
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glfwSetWindowShouldClose(window, true);
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// --- ImGui Frame Start ---
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ImGui_ImplOpenGL3_NewFrame();
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ImGui_ImplGlfw_NewFrame();
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ImGui::NewFrame();
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// Create a simple window
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ImGui::Begin("Settings");
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ImGui::Text("Hello from Dear ImGui!");
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ImGui::End();
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// --- ImGui Frame End ---
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// Rendering commands here
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glClearColor(0.01f, 0.01f, 0.01f, 1.0f); // Set clear color (Dark Gray)
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glClear(GL_COLOR_BUFFER_BIT); // Clear the screen
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ImGui::Render();
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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// Swap buffers and poll IO events
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glfwSwapBuffers(window);
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glfwPollEvents();
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}
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// 5. Clean up
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ImGui_ImplOpenGL3_Shutdown();
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ImGui_ImplGlfw_Shutdown();
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ImGui::DestroyContext();
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glfwTerminate();
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return 0;
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}
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