StartG: uint64(startG),
		EndG:   uint64(endG),
	}

	// Emit the task slice and notify the emitter of the task.
	ctx.Task(uint64(task.ID), fmt.Sprintf("T%d %s", task.ID, task.Name), sortIndex)
	ctx.TaskSlice(traceviewer.SliceEvent{
		Name:     task.Name,
		Ts:       ctx.elapsed(startTime),
		Dur:      endTime.Sub(startTime),
		Resource: uint64(task.ID),
		Stack:    ctx.Stack(viewerFrames(startStack)),

}

func (e *Emitter) Slice(s SliceEvent) {
	if e.filter != nil && !e.filter(s.Resource) {
		return
	}
	e.slice(s, format.ProcsSection, "")
}

func (e *Emitter) TaskSlice(s SliceEvent) {
	e.slice(s, format.TasksSection, pickTaskColor(s.Resource))
}

func (e *Emitter) slice(s SliceEvent, sectionID uint64, cname string) {
	if !e.tsWithinRange(s.Ts) && !e.tsWithinRange(s.Ts+s.Dur) {