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| #include <glad/glad.h>
#include <GLFW/glfw3.h>
#include <iostream>
void framebuffer_size_callback(GLFWwindow *window, int width, int height)
{
glViewport(0, 0, width, height);
}
int main()
{
glfwInit();
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
//glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
// print version info
int Major, Minor, Rev;
glfwGetVersion(&Major, &Minor, &Rev);
printf("GLFW %d.%d.%d initialized\n", Major, Minor, Rev);
// create glfw window object
GLFWwindow *window = glfwCreateWindow(800, 600, "window", NULL, NULL);
if (window == NULL)
{
std::cout << "Failed to create GLFW window" << std::endl;
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(window);
// init GLAD
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
{
std::cout << "Failed to initialize GLAD" << std::endl;
return -1;
}
// create viewport
glViewport(0, 0, 800, 600);
// viewport adjust callback
void framebuffer_size_callback(GLFWwindow * window, int width, int height);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
// render loop
while (!glfwWindowShouldClose(window))
{
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwTerminate();
return 0;
}
|