Golang glfw.WindowHint函数代码示例

func main() {
	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to initialize glfw:", err)
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 2)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	window, err := glfw.CreateWindow(640, 480, "tut03", nil, nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()

	if err := gl.Init(); err != nil {
		panic(err)
	}

	t0 := time.Now()
	program := initResources()
	for {
		curFade = float32(math.Sin(time.Now().Sub(t0).Seconds()*2*math.Pi/5)/2 + 0.5)
		onDisplay(program)
		window.SwapBuffers()
		glfw.PollEvents()
	}

	gl.DeleteProgram(program)
	gl.DeleteBuffers(1, &vboTriangle)
}

func main() {
	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to inifitialize glfw:", err)
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 4)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
	window, err := glfw.CreateWindow(windowWidth, windowHeight, "basic shaders", nil, nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()

	// Initialize Glow (go function bindings)
	if err := gl.Init(); err != nil {
		panic(err)
	}

	window.SetKeyCallback(keyCallback)

	err = programLoop(window)
	if err != nil {
		log.Fatal(err)
	}
}

func CreateContext(width int, height int) (*Context, error) {
	if err := glfw.Init(); err != nil {
		fmt.Println("failed to initialize glfw:", err)
	}

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 4)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
	window, err := glfw.CreateWindow(width, height, "flamingo", nil, nil)

	if err != nil {
		glfw.Terminate()
		return nil, err
	}

	window.MakeContextCurrent()

	// Initialize Glow
	if err = gl.Init(); err != nil {
		glfw.Terminate()
		return nil, err
	}

	version := gl.GoStr(gl.GetString(gl.VERSION))
	fmt.Println("OpenGL version", version)

	return &Context{window}, nil
}

func checkMon() {
	monitors = glfw.GetMonitors()
	glfw.WindowHint(glfw.ContextVersionMajor, 2)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	glfw.WindowHint(glfw.AutoIconify, glfw.False)
	glfw.WindowHint(glfw.Decorated, glfw.False)

	if i := len(monitors); i < 2 {
		fmt.Println("You only have 1 monitor!!!!!!!!!!! :-P")
		monWidth = 800
		monHeight = 600

		win, err = glfw.CreateWindow(monWidth, monHeight, "Cube", nil, nil)
		if err != nil {
			panic(err)
		}
		projMonitor = monitors[0]
	} else {
		fmt.Printf("You have %d monitors\n", i)
		monWidth = monitors[1].GetVideoMode().Width
		monHeight = monitors[1].GetVideoMode().Height
		win, err = glfw.CreateWindow(monWidth, monHeight, "Cube", nil, nil)
		win.SetPos(monitors[1].GetPos())
		fmt.Printf("Width: %d  Height: %d \n", monWidth, monHeight)
		if err != nil {
			panic(err)
		}
		projMonitor = monitors[1]

	}
	monitorInfo()

}

func main() {
	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to initialize glfw:", err)
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 2)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	window, err := glfw.CreateWindow(800, 600, "Cube", nil, nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()

	if err := gl.Init(); err != nil {
		panic(err)
	}

	texture = newTexture("square.png")
	defer gl.DeleteTextures(1, &texture)

	setupScene()
	for !window.ShouldClose() {
		drawScene()
		window.SwapBuffers()
		glfw.PollEvents()
	}
}

func (c *Context) SetResizable(val bool) {
	if val {
		glfw.WindowHint(glfw.Resizable, 1)
	} else {
		glfw.WindowHint(glfw.Resizable, 0)
	}
}

func main() {

	width := 1024
	height := 768
	title := "Simple Triangle"

	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to initialize glfw:", err)
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Samples, 4)             // 4x antialiasing
	glfw.WindowHint(glfw.ContextVersionMajor, 3) // We want OpenGL 3.3
	glfw.WindowHint(glfw.ContextVersionMinor, 3)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)    // To make MacOS happy; should not be needed
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile) //We don't want the old OpenGL
	window, err := glfw.CreateWindow(width, height, title, nil, nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()

	if err := gl.Init(); err != nil {
		panic(err)
	}
	window.SetKeyCallback(keypress)
	window.SetMouseButtonCallback(mousepress)
	gl.Viewport(0, 0, 1024, 768)
	for !window.ShouldClose() {
		draw()
		window.SwapBuffers()
		glfw.PollEvents()
	}
}

func main() {

	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to initialize glfw:", err)
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 2)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	window, err := glfw.CreateWindow(800, 600, "Create Window Example", nil, nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()

	if err := gl.Init(); err != nil {
		panic(err)
	}

	window.SetKeyCallback(keypress)
	window.SetMouseButtonCallback(mousepress)

	gl.Viewport(0, 0, 800, 600)

	for !window.ShouldClose() {
		draw()
		window.SwapBuffers()
		glfw.PollEvents()
	}

}

func (glr *GlRenderer) initSystem() {
	// Lock goroutine to main thread - required for GL
	runtime.LockOSThread()

	var err error
	if err = glfw.Init(); err != nil {
		panic(err)
	}

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 3)
	glfw.WindowHint(glfw.ContextVersionMinor, 3)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
	glr.window, err = glfw.CreateWindow(glr.width, glr.height, "rt", nil, nil)
	if err != nil {
		panic(err)
	}
	glr.window.MakeContextCurrent()

	if err = gl.Init(); err != nil {
		panic(err)
	}

	version := gl.GoStr(gl.GetString(gl.VERSION))
	fmt.Println("OpenGL version", version)
}

func main() {
	flag.Parse()

	go func() {
		http.ListenAndServe("localhost:6060", nil)
	}()

	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to initialize glfw:", err)
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.True)
	glfw.WindowHint(glfw.Visible, glfw.False) // do not steal focus

	glfw.WindowHint(glfw.ContextVersionMajor, 2)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)

	window, err := glfw.CreateWindow(800, 600, "Spector", nil, nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()
	window.Restore()
	window.SetPos(32, 64)

	if err := gl.Init(); err != nil {
		panic(err)
	}

	state := NewState()
	for !window.ShouldClose() {
		if window.GetKey(glfw.KeyEscape) == glfw.Press {
			return
		}
		if window.GetKey(glfw.KeyR) == glfw.Press {
			state.Stop()
			state = NewState()
		}

		start := time.Now()
		state.Update(1.0 / 60.0)
		updateTime := time.Since(start)

		start = time.Now()
		state.Render(window)
		renderTime := time.Since(start)

		text := fmt.Sprintf("update: %.2fms render: %.2fms",
			float32(updateTime)/float32(time.Millisecond),
			float32(renderTime)/float32(time.Millisecond))
		w, h := window.GetSize()
		state.Backend.SetFontColor(ui.ColorHex(0xFF0000FF))
		size := state.Backend.Measure(text)
		state.Backend.Text(text, ui.Block(float32(w)-size.X, float32(h)-size.Y, size.X, size.Y))

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

// InitGraphics creates an OpenGL window and initializes the required graphics libraries.
// It will either succeed or panic.
func (app *ExampleApp) InitGraphics(title string, w int, h int) {
	err := glfw.Init()
	if err != nil {
		panic("Can't init glfw! " + err.Error())
	}

	// request a OpenGL 3.3 core context
	glfw.WindowHint(glfw.Samples, 0)
	glfw.WindowHint(glfw.ContextVersionMajor, 3)
	glfw.WindowHint(glfw.ContextVersionMinor, 3)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)

	// do the actual window creation
	app.MainWindow, err = glfw.CreateWindow(w, h, title, nil, nil)
	if err != nil {
		panic("Failed to create the main window! " + err.Error())
	}
	app.MainWindow.MakeContextCurrent()
	glfw.SwapInterval(0)

	// make sure that all of the GL functions are initialized
	err = gl.Init()
	if err != nil {
		panic("Failed to initialize GL! " + err.Error())
	}

	// set the app window dimensions
	app.Width = w
	app.Height = h

	gl.FrontFace(gl.CCW)
	gl.CullFace(gl.BACK)
	gl.Enable(gl.CULL_FACE)
}

func setupWindowOptions() {
	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 4)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
}

func (self *Application) run() error {
	if err := glfw.Init(); err != nil {
		return err
	}
	defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 4)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)

	window, err := glfw.CreateWindow(512, 512, "GL", nil, nil)
	if err != nil {
		return err
	}

	window.MakeContextCurrent()

	if err := gl.Init(); err != nil {
		return err
	}

	if err := self.setup(); err != nil {
		return err
	}

	for !window.ShouldClose() {
		self.display()
		window.SwapBuffers()
		glfw.PollEvents()
	}

	return nil
}

func Init() {
	runtime.LockOSThread()

	err := glfw.Init()
	if err != nil {
		panic(fmt.Sprintf("glfw.Init() fails: %v", err))
	}
	glfw.WindowHint(glfw.Visible, glfw.False)
	glfw.WindowHint(glfw.Resizable, glfw.False)

	// As start, create an window with temporary size to create OpenGL context thread.
	window, err := glfw.CreateWindow(16, 16, "", nil, nil)
	if err != nil {
		panic(err)
	}

	u := &userInterface{
		window: window,
		funcs:  make(chan func()),
	}
	go func() {
		runtime.LockOSThread()
		u.window.MakeContextCurrent()
		glfw.SwapInterval(1)
		for f := range u.funcs {
			f()
		}
	}()

	currentUI = u
}

func CreateRenderer(windowWidth, windowHeight int) *Renderer {

	if err := glfw.Init(); err != nil {
		log.Fatalln("failed to initialize glfw:", err)
	}
	// defer glfw.Terminate()

	glfw.WindowHint(glfw.Resizable, glfw.False)
	glfw.WindowHint(glfw.ContextVersionMajor, 4)
	glfw.WindowHint(glfw.ContextVersionMinor, 1)
	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
	glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
	if windowWidth == 0 && windowHeight == 0 {
		windowWidth, windowHeight = glfw.GetPrimaryMonitor().GetPhysicalSize()
	}
	fmt.Println("Window Width -", windowWidth, "Window Height -", windowHeight)
	window, err := glfw.CreateWindow(windowWidth, windowHeight, "Karma", glfw.GetPrimaryMonitor(), nil)
	if err != nil {
		panic(err)
	}
	window.MakeContextCurrent()
	window.SetKeyCallback(testCallback)

	// Initialize Glow
	if err := gl.Init(); err != nil {
		panic(err)
	}

	version := gl.GoStr(gl.GetString(gl.VERSION))
	fmt.Println("OpenGL version", version)

	shaders := Shaders{}

	textureFlatUniforms := []string{"projection", "camera", "modelView", "tex"}
	textureFlatAttributes := []string{"vert", "vertTexCoord"}

	fmt.Println(textureFlatUniforms)
	fmt.Println(textureFlatAttributes)

	shader, err := createProgram("./assets/shaders/texture_flat.vs", "./assets/shaders/texture_flat.fs", textureFlatUniforms, textureFlatAttributes)
	if err != nil {
		panic(err)
	}
	shaders.textureFlat = shader

	meshes := []*Mesh{}

	previousTime := glfw.GetTime()

	return &Renderer{
		PreviousTime: previousTime,
		Window:       window,
		Shaders:      &shaders,
		Meshes:       meshes,
	}
}