opegnl: Remove initialization (use Reset instead) (mobile)

internal/graphics/opengl/context_mobile.go

@@ -61,30 +61,13 @@ func init() {
 }
 
 type context struct {
-	gl          mgl.Context
-	worker      mgl.Worker
-	initialized chan struct{}
+	gl     mgl.Context
+	worker mgl.Worker
 }
 
 func NewContext() (*Context, error) {
-	c := &Context{
-		locationCache:     newLocationCache(),
-		lastCompositeMode: CompositeModeUnknown,
-	}
+	c := &Context{}
 	c.gl, c.worker = mgl.NewContext()
-	c.initialized = make(chan struct{})
-	go func() {
-		// GL calls will just enqueue an task to the worker.
-		// Since the worker is not available, this enqueuing should be done
-		// in a goroutine.
-
-		// Textures' pixel formats are alpha premultiplied.
-		c.gl.Enable(mgl.BLEND)
-		c.BlendFunc(CompositeModeSourceOver)
-		f := c.gl.GetInteger(mgl.FRAMEBUFFER_BINDING)
-		c.screenFramebuffer = Framebuffer(mgl.Framebuffer{uint32(f)})
-		close(c.initialized)
-	}()
 	return c, nil
 }
 
@@ -102,10 +85,6 @@ func (c *Context) Reset() error {
 	return nil
 }
 
-func (c *Context) InitializedCh() <-chan struct{} {
-	return c.initialized
-}
-
 func (c *Context) Worker() mgl.Worker {
 	return c.worker
 }

internal/ui/ui_mobile.go

@@ -40,13 +40,6 @@ func Render(chError <-chan error) error {
 		return errors.New("ui: chError must not be nil")
 	}
 	// TODO: Check this is called on the rendering thread
-	if chGLInitialized != nil {
-		if err := doGLWorks(chError, glContext.InitializedCh()); err != nil {
-			return err
-		}
-		close(chGLInitialized)
-		<-chGLInitializedEnd
-	}
 	select {
 	case chRender <- struct{}{}:
 		return doGLWorks(chError, chRenderEnd)
@@ -85,11 +78,9 @@ type userInterface struct {
 }
 
 var (
-	chRender           = make(chan struct{})
-	chRenderEnd        = make(chan struct{})
-	chGLInitialized    = make(chan struct{})
-	chGLInitializedEnd = make(chan struct{})
-	currentUI          = &userInterface{
+	chRender    = make(chan struct{})
+	chRenderEnd = make(chan struct{})
+	currentUI   = &userInterface{
 		sizeChanged: true,
 	}
 )
@@ -111,12 +102,6 @@ func (u *userInterface) Terminate() error {
 }
 
 func (u *userInterface) Update() (interface{}, error) {
-	// TODO: Need lock?
-	if chGLInitialized != nil {
-		<-chGLInitialized
-		chGLInitialized = nil
-		close(chGLInitializedEnd)
-	}
 	if u.sizeChanged {
 		u.sizeChanged = false
 		e := ScreenSizeEvent{