func main(f func(App)) {
runtime.LockOSThread()
C.createWindow()
// TODO: send lifecycle events when e.g. the X11 window is iconified or moved off-screen.
sendLifecycle(lifecycle.StageFocused)
donec := make(chan struct{})
go func() {
f(app{})
close(donec)
}()
// TODO: can we get the actual vsync signal?
ticker := time.NewTicker(time.Second / 60)
defer ticker.Stop()
tc := ticker.C
for {
select {
case <-donec:
return
case <-gl.WorkAvailable:
gl.DoWork()
case <-endPaint:
C.swapBuffers()
tc = ticker.C
case <-tc:
tc = nil
eventsIn <- paint.Event{}
}
C.processEvents()
}
}
func newWindow(opts *screen.NewWindowOptions) (screen.Window, error) {
var hwnd C.HWND
hr := C.createWindow(&hwnd)
if hr != C.S_OK {
return nil, winerror("error creating window", hr)
}
return &window{
hwnd: hwnd,
pump: pump.Make(),
}, nil
}
func main(f func(App)) {
runtime.LockOSThread()
var worker gl.Worker
glctx, worker = gl.NewContext()
workAvailable := worker.WorkAvailable()
C.createWindow()
// TODO: send lifecycle events when e.g. the X11 window is iconified or moved off-screen.
theApp.sendLifecycle(lifecycle.StageFocused)
// TODO: translate X11 expose events to shiny paint events, instead of
// sending this synthetic paint event as a hack.
theApp.eventsIn <- paint.Event{}
donec := make(chan struct{})
go func() {
f(theApp)
close(donec)
}()
// TODO: can we get the actual vsync signal?
ticker := time.NewTicker(time.Second / 60)
defer ticker.Stop()
var tc <-chan time.Time
for {
select {
case <-donec:
return
case <-workAvailable:
worker.DoWork()
case <-theApp.publish:
C.swapBuffers()
tc = ticker.C
case <-tc:
tc = nil
theApp.publishResult <- PublishResult{}
}
C.processEvents()
}
}
func (this *Window) _createWindow() {
C.createWindow(unsafe.Pointer(this))
}