func (m *mainLoop) loop(init chan<- struct{}) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
looper := C.ALooper_prepare(C.ALOOPER_PREPARE_ALLOW_NON_CALLBACKS)
if looper == nil {
panic("ALooper_prepare returned nil")
}
m.looper = looper
init <- struct{}{}
for {
select {
case <-m.quit:
if m.renderState != nil && m.renderState.ctx != egl.Context(unsafe.Pointer(nil)) {
if !egl.MakeCurrent(m.renderState.disp, egl.Surface(unsafe.Pointer(nil)), egl.Surface(unsafe.Pointer(nil)), egl.Context(unsafe.Pointer(nil))) {
panic("Error: eglMakeCurrent() failed\n")
}
}
m.ack <- struct{}{}
break
case <-m.resume:
m.running = true
m.ack <- struct{}{}
case <-m.pause:
m.running = false
m.width, m.height = 0, 0
m.ack <- struct{}{}
case m.focused = <-m.focus:
m.width, m.height = 0, 0
m.ack <- struct{}{}
case m.renderState = <-m.render:
m.ack <- struct{}{}
case inputQ := <-m.input:
if inputQ != nil {
C.AInputQueue_attachLooper(inputQ, m.looper, LOOPER_ID_INPUT, nil, nil)
} else {
C.AInputQueue_detachLooper(m.inputQ)
}
m.inputQ = inputQ
m.ack <- struct{}{}
default:
m.frame()
}
}
}
//export onNativeWindowDestroyed
func onNativeWindowDestroyed(act *C.ANativeActivity, win unsafe.Pointer) {
defer func() {
handleCallbackError(act, recover())
}()
log.Printf("onWindowDestroy...\n")
state := states[act]
state.mLoop.UpdateRenderState(nil)
egl.DestroySurface(state.renderState.disp, state.renderState.surf)
state.renderState.surf = egl.Surface(unsafe.Pointer(nil))
log.Printf("onWindowDestroy done\n")
}