From fe07c0fb6e1bb7fb2350aff8cf78f89bf8a29794 Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Wed, 15 Mar 2023 07:43:47 -0500
Subject: [PATCH] misc

---
 main.go => android/main.go |  0
 desktop/main.go            | 53 ++++++++++++++++++++++++++++++++++++++
 go.mod                     |  2 ++
 go.sum                     |  4 +++
 4 files changed, 59 insertions(+)
 rename main.go => android/main.go (100%)
 create mode 100644 desktop/main.go

diff --git a/main.go b/android/main.go
similarity index 100%
rename from main.go
rename to android/main.go
diff --git a/desktop/main.go b/desktop/main.go
new file mode 100644
index 0000000..5b59360
--- /dev/null
+++ b/desktop/main.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"log"
+	"runtime"
+
+	"github.com/go-gl/gl/v3.3-core/gl"
+	"github.com/go-gl/glfw/v3.3/glfw"
+)
+
+const (
+	width  = 800
+	height = 600
+	title  = "Go OpenGL Example"
+)
+
+func init() {
+	runtime.LockOSThread()
+}
+
+func main() {
+	err := glfw.Init()
+	if err != nil {
+		log.Fatalln("Failed to initialize GLFW:", err)
+	}
+	defer glfw.Terminate()
+
+	glfw.WindowHint(glfw.ContextVersionMajor, 3)
+	glfw.WindowHint(glfw.ContextVersionMinor, 3)
+	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
+	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
+
+	window, err := glfw.CreateWindow(width, height, title, nil, nil)
+	if err != nil {
+		log.Fatalln("Failed to create window:", err)
+	}
+
+	window.MakeContextCurrent()
+	glfw.SwapInterval(1)
+
+	if err := gl.Init(); err != nil {
+		log.Fatalln("Failed to initialize OpenGL:", err)
+	}
+
+	gl.ClearColor(0.1, 0.1, 0.1, 1.0)
+
+	for !window.ShouldClose() {
+		gl.Clear(gl.COLOR_BUFFER_BIT)
+
+		window.SwapBuffers()
+		glfw.PollEvents()
+	}
+}
diff --git a/go.mod b/go.mod
index 3892175..7727da6 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,8 @@ go 1.19
 require golang.org/x/mobile v0.0.0-20230301163155-e0f57694e12c
 
 require (
+	github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6 // indirect
+	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b // indirect
 	golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 // indirect
 	golang.org/x/image v0.0.0-20190802002840-cff245a6509b // indirect
 	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f // indirect
diff --git a/go.sum b/go.sum
index 31461df..063d201 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,8 @@
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6 h1:zDw5v7qm4yH7N8C8uWd+8Ii9rROdgWxQuGoJ9WDXxfk=
+github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6/go.mod h1:9YTyiznxEY1fVinfM7RvRcjRHbw2xLBJ3AAGIT0I4Nw=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b h1:GgabKamyOYguHqHjSkDACcgoPIz3w0Dis/zJ1wyHHHU=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20221017161538-93cebf72946b/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 h1:estk1glOnSVeJ9tdEZZc5mAMDZk5lNJNyJ6DvrBkTEU=