func (me *context) Window(winf *ngctx.WinProfile, bufSize *ngctx.BufferBits, ctxProf *ngctx.CtxProfile) (window ngctx.Window, err error) {
glfw.WindowHint(glfw.Samples, winf.MultiSampling)
glfw.WindowHint(glfw.RedBits, bufSize.Color.R)
glfw.WindowHint(glfw.GreenBits, bufSize.Color.G)
glfw.WindowHint(glfw.BlueBits, bufSize.Color.B)
glfw.WindowHint(glfw.AlphaBits, bufSize.Color.A)
glfw.WindowHint(glfw.DepthBits, bufSize.Depth)
glfw.WindowHint(glfw.StencilBits, bufSize.Stencil)
glfw.WindowHint(glfw.ContextVersionMajor, ctxProf.Version.Major)
glfw.WindowHint(glfw.ContextVersionMinor, ctxProf.Version.Minor)
glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
if ctxProf.ForwardCompat {
glfw.WindowHint(glfw.OpenglForwardCompatible, 1)
}
var mon *glfw.Monitor
if winf.FullScreen {
mon, err = glfw.GetPrimaryMonitor()
}
if err == nil {
var win *glfw.Window
if win, err = glfw.CreateWindow(winf.Width, winf.Height, winf.Title, mon, nil); win != nil {
window = newWindow(win)
if winf.FullScreen {
win.SetInputMode(glfw.Cursor, glfw.CursorHidden)
}
}
}
return
}
func (self *OpenGLWindow) Open() {
var err error
if !glfw.Init() {
panic(errors.New("Unable to initialize GLFW"))
}
glfw.SetErrorCallback(func(code glfw.ErrorCode, desc string) {
log.Printf("[GLFW Error] (%d) %s", code, desc)
})
var monitor *glfw.Monitor
if self.config.Fullscreen {
monitor, err = glfw.GetPrimaryMonitor()
if err != nil {
panic(err)
}
}
glfw.WindowHint(glfw.ContextVersionMajor, 4)
glfw.WindowHint(glfw.ContextVersionMinor, 1)
glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
glfw.WindowHint(glfw.OpenglForwardCompatible, glfw.True)
// Default buffer sizes
glfw.WindowHint(glfw.DepthBits, 32)
glfw.WindowHint(glfw.StencilBits, 0)
// Toggle VSync. Turning VSync off aparently doesn't work via glfw through
// some ATI cards and drivers
if self.config.VSync {
glfw.SwapInterval(1)
} else {
glfw.SwapInterval(0)
}
self.window, err = glfw.CreateWindow(
int(self.config.Width), int(self.config.Height),
"Project Slartibartfast",
monitor,
nil)
if err != nil {
panic(err)
}
self.window.MakeContextCurrent()
if glewError := gl.Init(); glewError != 0 {
panic(errors.New("Unable to initialize OpenGL"))
}
}
func initWindow() (window *glfw.Window, err error) {
monitor, err := glfw.GetPrimaryMonitor()
if err != nil {
return nil, err
}
videomode, err := monitor.GetVideoMode()
if err != nil {
return nil, err
}
if videomode.Height < 480 || videomode.Width < 640 {
return nil, errors.New("unsupported resolution!")
}
ratio := float64(videomode.Width) / float64(videomode.Height)
if fullscreen {
glfw.WindowHint(glfw.Decorated, 0)
window, err = glfw.CreateWindow(videomode.Width, videomode.Height, "Golang Asteroids!", nil, nil)
if err != nil {
return nil, err
}
window.SetPosition(0, 0)
} else {
glfw.WindowHint(glfw.Decorated, 1)
window, err = glfw.CreateWindow(int(ratio*480), 480, "Golang Asteroids!", nil, nil)
if err != nil {
return nil, err
}
window.SetPosition(videomode.Width/2-320, videomode.Height/2-240)
}
window.SetKeyCallback(keyCallback)
window.SetFramebufferSizeCallback(reshapeWindow)
window.MakeContextCurrent()
gl.Init()
gl.ClearColor(gl.GLclampf(Colorize(0)), gl.GLclampf(Colorize(0)), gl.GLclampf(Colorize(0)), 0.0)
gl.Clear(gl.COLOR_BUFFER_BIT)
width, height := window.GetFramebufferSize()
reshapeWindow(window, width, height)
return window, nil
}
// NewWindow creates a new window for the given dimensions and title.
// The window is created via GLFW.
func NewWindow(settings WindowSettings) (*Window, error) {
// Error callback
glfw.SetErrorCallback(errorCallback)
// Init glfw
logger.Debug("Initializing GLFW")
if !glfw.Init() {
return nil, errors.New("Could not initialise GLFW.")
}
glfw.WindowHint(glfw.Samples, 4)
glfw.WindowHint(glfw.ContextVersionMajor, 3)
glfw.WindowHint(glfw.ContextVersionMinor, 3)
glfw.WindowHint(glfw.OpenglForwardCompatible, glfw.True)
glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
glfw.WindowHint(glfw.OpenglDebugContext, 1)
var monitor *glfw.Monitor
var err error
if settings.Fullscreen {
logger.Debug("Get primary monitor to create fullscreen window.")
monitor, err = glfw.GetPrimaryMonitor()
if err != nil {
return nil, err
}
logger.Debug("Checking available video modes:")
videoModes, err := monitor.GetVideoModes()
if err != nil {
return nil, err
}
for _, videoMode := range videoModes {
logger.Debug(fmt.Sprintf("-- %+v", videoMode))
}
idealVideoMode := videoModes[len(videoModes)-1]
settings.Width = idealVideoMode.Width
settings.Height = idealVideoMode.Height
}
// Create window
logger.Info("Creating new window")
window, err := glfw.CreateWindow(settings.Width, settings.Height, settings.Title, monitor, nil)
if err != nil {
return nil, err
}
window.SetKeyCallback(keyCallback)
window.MakeContextCurrent()
window.SetInputMode(glfw.StickyKeys, 1)
// Use vsync
glfw.SwapInterval(1)
w := &Window{
window: window,
Settings: settings,
}
currentWindow = w
return w, nil
}
func CreateWindow(width, height int, name string, fullscreen bool, delegate WindowDelegate, legacy bool) error {
if !glfw.Init() {
return errors.New("Failed to initialize GLFW")
}
defer glfw.Terminate()
glfw.WindowHint(glfw.DepthBits, 16)
if !legacy {
glfw.WindowHint(glfw.ContextVersionMajor, 3)
glfw.WindowHint(glfw.ContextVersionMinor, 2)
glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
glfw.WindowHint(glfw.OpenglForwardCompatible, 1)
}
var monitor *glfw.Monitor = nil
var err error = nil
if fullscreen {
monitor, err = glfw.GetPrimaryMonitor()
if err != nil {
return err
}
vidModes, _ := monitor.GetVideoModes()
maxResolution := vidModes[len(vidModes)-1]
width = maxResolution.Width
height = maxResolution.Height
}
window, err := glfw.CreateWindow(width, height, name, monitor, nil)
if err != nil {
return err
}
if fullscreen {
window.SetInputMode(glfw.Cursor, glfw.CursorDisabled)
}
start := time.Now()
last := start
doSimulation := func() {
now := time.Now()
gameTime := GameTime{
now,
now.Sub(start),
now.Sub(last),
}
delegate.Simulate(gameTime)
last = now
}
bindEvents(window, &IdleSimulatorWindowDelegator{
WindowDelegator{delegate},
doSimulation,
})
window.MakeContextCurrent()
glfw.SwapInterval(1)
delegate.Init(window)
frameWidth, frameHeight := window.GetFramebufferSize()
delegate.Reshape(window, frameWidth, frameHeight)
for !window.ShouldClose() {
doSimulation()
if delegate.NeedsRender() {
delegate.Draw(window)
}
window.SwapBuffers()
if delegate.IsIdle() {
glfw.WaitEvents()
} else {
glfw.PollEvents()
}
}
return nil
}
