PyGLizer

This repository contains my attempt at making an OpenGL Loader Generator for C/C++, written in Python. If you're looking for an actual loader generator, use glad.

Unlike glad, this generator produces inline functions instead of #define's, which allow for less awkward autocompletion in most IDE's.

The script fetches the latest OpenGL spec from the web, parses it, and outputs two files:

• GL.h/hpp - A header containing all OpenGL types, functions and a loader. This file should be placed in the include directory of your project.
• GL.c/cpp - A file containing symbol definitions. Add it to your source files.

Usage

  main.py [-h] [--spec {gl,wgl,glx}] [--api {gl,gles1,gles2,glsc2}] [--profile {core,compatibility}] [--version VERSION] [--generator {cpp,c}]
               [--no-loader]
               
options:
  --spec {gl,wgl,glx}
  --api {gl,gles1,gles2,glsc2}
  --profile {core,compatibility}
  --version VERSION
  --generator {cpp,c}
  --no-loader

None of the arguments are required. By default, a header for the latest core version of OpenGL gets generated.

If you're using glfw in your project, include the GL.h/hpp header before it!

Example usage

#include "GL.h"
#include "GLFW/glfw3.h"

int main() {
    glfwInit();
    GLFWwindow* window = glfwCreateWindow(1080, 720, "Window", NULL, NULL);
    glfwMakeContextCurrent(window);

    loadGL();
    glClearColor(1.0f, 1.0f, 0.0f, 1.0f);

    while(!glfwWindowShouldClose(window)) {
        glfwPollEvents();
        glClear(GL_COLOR_BUFFER_BIT);
        glfwSwapBuffers(window);
    }
    
    glfwTerminate();
    return 0;
}

(Planned) Features / TODO's

• Make it work
• Separate generators for C/C++
• Write my own library handling functions (For now they are stolen from heavily inspired by glad)
• Typed enums
• Figure out what APIENTRY is
• Documentation generator
• Cleanup
• Debugging/Profiling stuff
• Error handing
• How do I deal with extensions
• OSX support