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#include "controller.hpp"
#include "task.hpp"
#include "../base/assert.hpp"
#include "../base/timer.hpp"
#include "../std/bind.hpp"
namespace anim
{
Controller::Controller()
{
m_LockCount = 0;
m_IdleThreshold = 5;
m_IdleFrames = 0;
}
Controller::~Controller()
{
}
void Controller::AddTaskImpl(list<shared_ptr<Task> > & l, shared_ptr<Task> const & task)
{
l.push_back(task);
task->SetController(this);
if (task->IsVisual())
m_IdleFrames = m_IdleThreshold;
}
void Controller::AddTask(shared_ptr<Task> const & task)
{
m_tasks.ProcessList(bind(&Controller::AddTaskImpl, this, _1, task));
}
void Controller::CopyAndClearTasks(TTasks & from, TTasks & to)
{
to.clear();
swap(from, to);
}
void Controller::MergeTasks(TTasks & from, TTasks & to)
{
copy(from.begin(), from.end(), back_inserter(to));
}
bool Controller::HasTasks()
{
return !m_tasks.Empty();
}
void Controller::HasVisualTasksImpl(list<shared_ptr<Task> > &l, bool *res) const
{
*res = false;
for (list<shared_ptr<Task> >::const_iterator it = l.begin();
it != l.end();
++it)
{
if ((*it)->IsVisual())
{
*res = true;
break;
}
}
}
bool Controller::HasVisualTasks()
{
bool res;
m_tasks.ProcessList(bind(&Controller::HasVisualTasksImpl, this, _1, &res));
return res;
}
void Controller::Lock()
{
++m_LockCount;
}
void Controller::Unlock()
{
--m_LockCount;
}
int Controller::LockCount()
{
ASSERT(m_LockCount >=0, ("Lock/Unlock is unbalanced! LockCount < 0!"));
return m_LockCount;
}
void Controller::PerformStep()
{
m_tasks.ProcessList(bind(&Controller::CopyAndClearTasks, _1, ref(m_tasksList)));
double ts = GetCurrentTime();
TTasks l;
bool hasVisualTasks = false;
for (list<shared_ptr<Task> >::const_iterator it = m_tasksList.begin();
it != m_tasksList.end();
++it)
if ((*it)->IsVisual())
{
hasVisualTasks = true;
break;
}
for (TTasks::const_iterator it = m_tasksList.begin(); it != m_tasksList.end(); ++it)
{
shared_ptr<Task> const & task = *it;
task->Lock();
if (task->IsVisual())
m_IdleFrames = m_IdleThreshold;
if (task->IsReady())
{
task->Start();
task->OnStart(ts);
}
if (task->IsRunning())
task->OnStep(ts);
if (task->IsRunning())
l.push_back(task);
else
{
if (task->IsCancelled())
task->OnCancel(ts);
if (task->IsEnded())
task->OnEnd(ts);
}
task->Unlock();
}
if (!hasVisualTasks && m_IdleFrames > 0)
m_IdleFrames -= 1;
m_tasks.ProcessList(bind(&Controller::MergeTasks, ref(l), _1));
}
bool Controller::IsVisuallyPreWarmed() const
{
return m_IdleFrames > 0;
}
double Controller::GetCurrentTime() const
{
return my::Timer::LocalTime();
}
}
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