Go语言在macOS上创建OpenGL 3.2核心配置文件上下文

package main

import (
    "fmt"
    "github.com/go-gl/gl/v3.2-core/gl" // 注意：这里使用了3.2-core的绑定
    "github.com/go-gl/glfw/v3.3/glfw" // 推荐使用最新版glfw
)

func main() {
    // 1. 请求OpenGL 3.2核心配置文件上下文
    glfw.WindowHint(glfw.ContextVersionMajor, 3)
    glfw.WindowHint(glfw.ContextVersionMinor, 2)
    glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)

    // 2. 初始化GLFW
    if err := glfw.Init(); err != nil {
        panic(fmt.Sprintf("glfw init failed: %v", err))
    }
    defer glfw.Terminate()

    // 3. 创建并设置窗口上下文
    window, err := glfw.CreateWindow(640, 480, "OpenGL 3.2 Context Example", nil, nil)
    if err != nil {
        panic(fmt.Sprintf("failed to create window: %v", err))
    }
    window.MakeContextCurrent()

    // 4. 初始化go-gl
    if err := gl.Init(); err != nil {
        panic(fmt.Sprintf("go-gl init failed: %v", err))
    }

    // 5. 检查OpenGL版本
    version := gl.GetString(gl.VERSION)
    fmt.Printf("OpenGL Version: %s\n", gl.GoStr(version))
}

glfw.WindowHint(glfw.OpenglForwardCompat, glfw.TRUE)

package main

import (
    "fmt"
    "github.com/go-gl/gl/v3.2-core/gl" // 确保使用v3.2-core的gl绑定
    "github.com/go-gl/glfw/v3.3/glfw" // 推荐使用最新版glfw
    "runtime"
)

func init() {
    // GLFW event handling must run on the main thread
    // See: https://github.com/go-gl/glfw/issues/103
    runtime.LockOSThread()
}

func main() {
    // 1. 设置窗口提示
    glfw.WindowHint(glfw.ContextVersionMajor, 3)
    glfw.WindowHint(glfw.ContextVersionMinor, 2)
    glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
    // ！！！关键：为macOS启用前向兼容性！！！
    glfw.WindowHint(glfw.OpenglForwardCompat, glfw.TRUE) 

    // 2. 初始化GLFW
    if err := glfw.Init(); err != nil {
        panic(fmt.Sprintf("glfw init failed: %v", err))
    }
    defer glfw.Terminate()

    // 3. 创建并设置窗口上下文
    window, err := glfw.CreateWindow(640, 480, "OpenGL 3.2 Core Profile Context", nil, nil)
    if err != nil {
        panic(fmt.Sprintf("failed to create window: %v", err))
    }
    window.MakeContextCurrent()

    // 4. 初始化go-gl
    // 必须在上下文被设置为当前后调用
    if err := gl.Init(); err != nil {
        panic(fmt.Sprintf("go-gl init failed: %v", err))
    }

    // 5. 验证OpenGL版本
    version := gl.GetString(gl.VERSION)
    vendor := gl.GetString(gl.VENDOR)
    renderer := gl.GetString(gl.RENDERER)
    glslVersion := gl.GetString(gl.SHADING_LANGUAGE_VERSION)

    fmt.Printf("OpenGL Version: %s\n", gl.GoStr(version))
    fmt.Printf("OpenGL Vendor: %s\n", gl.GoStr(vendor))
    fmt.Printf("OpenGL Renderer: %s\n", gl.GoStr(renderer))
    fmt.Printf("GLSL Version: %s\n", gl.GoStr(glslVersion))

    // 简单的渲染循环示例 (可选，用于验证窗口是否正常显示)
    for !window.ShouldClose() {
        gl.ClearColor(0.2, 0.3, 0.3, 1.0)
        gl.Clear(gl.COLOR_BUFFER_BIT)

        window.SwapBuffers()
        glfw.PollEvents()
    }
}