From 3025671f4fc81abfcbfe634fd51211cc129dcbbf Mon Sep 17 00:00:00 2001
From: Benjamin Palko <Benjaminpalko@hotmail.com>
Date: Wed, 7 Aug 2024 22:04:12 -0400
Subject: [PATCH] minimal!

---
 CMakeLists.txt |  8 ++------
 shell.nix      |  4 ++--
 src/main.cpp   | 14 +++++++++-----
 vcpkg.json     |  3 ---
 4 files changed, 13 insertions(+), 16 deletions(-)
 delete mode 100644 vcpkg.json

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a133807..d57e723 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,20 +1,16 @@
 cmake_minimum_required(VERSION 3.29.6)
 
-set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
 set(CMAKE_CXX_COMPILER clang++)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 
-set(GLFW_BUILD_WAYLAND ON)
-set(GLFW_PLATFORM GLFW_PLATFORM_WAYLAND)
-
 project(HelloWorld CXX)
 
 find_package(fmt CONFIG REQUIRED)
 find_package(glfw3 CONFIG REQUIRED)
-find_package(glad CONFIG REQUIRED)
+find_package(OpenGL REQUIRED)
 
 add_executable(main src/main.cpp)
 
-target_link_libraries(main PRIVATE fmt::fmt glfw glad::glad)
+target_link_libraries(main PRIVATE fmt::fmt glfw OpenGL)
diff --git a/shell.nix b/shell.nix
index 4ef0504..e314eef 100644
--- a/shell.nix
+++ b/shell.nix
@@ -7,8 +7,8 @@ pkgs.llvmPackages.stdenv.mkDerivation {
   buildInputs = with pkgs.buildPackages; [
     fmt
     glfw-wayland
-    libglvnd
-    libglvnd.dev
+    libGL
+    libGL.dev
   ];
   # nativeBuildInputs is usually what you want -- tools you need to run
   nativeBuildInputs = with pkgs.buildPackages; [
diff --git a/src/main.cpp b/src/main.cpp
index 0f7e61b..b223c3e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,29 +1,33 @@
-#include <fmt/core.h>
-#include <glad/glad.h>
 #include <GLFW/glfw3.h>
+#include <fmt/core.h>
 
 int main() {
 
+  int supported = glfwPlatformSupported(GLFW_PLATFORM_WAYLAND);
+  fmt::print("Wayland support: {}\n", supported == GLFW_TRUE);
+
   if (!glfwInit()) {
     const char *description;
     int code = glfwGetError(&description);
-    fmt::print("GLFW failed to init! {}", code);
+    fmt::print("GLFW failed to init! {} - {}\n", code, description);
     return -1;
   }
   GLFWwindow *window =
-      glfwCreateWindow(640, 480, "HELLO WORLD!", glfwGetPrimaryMonitor(), NULL);
+      glfwCreateWindow(640, 480, "GLFW", glfwGetPrimaryMonitor(), NULL);
 
   if (!window) {
     glfwTerminate();
-    fmt::print("Window or OpenGL context creation failed");
+    fmt::print("Window or OpenGL context creation failed\n");
     return -1;
   }
 
   glfwMakeContextCurrent(window);
+  glClearColor(0.4f, 0.3f, 0.4f, 0.0f);
 
   /* Loop until the user closes the window */
   while (!glfwWindowShouldClose(window)) {
     /* Render here */
+    //   glClear(GL_COLOR_BUFFER_BIT);
 
     /* Swap front and back buffers */
     glfwSwapBuffers(window);
diff --git a/vcpkg.json b/vcpkg.json
deleted file mode 100644
index 415a3ab..0000000
--- a/vcpkg.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "dependencies": ["glad"]
-}