#include "VisibilityManager.h"
#include "StopAndWaitCullingManager.h"
#include "CoherentHierarchicalCullingManager.h"
#include "FrustumCullingManager.h"
#include "DummyPreprocessingManager.h"
#include "DummyQueryManager.h"

namespace GtpVisibility {

VisibilityManager::VisibilityManager(VisibilityEnvironment *visEnvironment)
{
	mVisibilityEnvironment = visEnvironment;
	//mVisibilityManagerType = VisibilityEnvironment::STOP_AND_WAIT;
	//mVisibilityManager = new StopAndWaitCullingManager(NULL);
	mCullingManagerType = VisibilityEnvironment::FRUSTUM_CULLING;
	mCullingManager = new FrustumCullingManager(0);

	mQueryManager = new DummyQueryManager(0);
	mPreprocessingManager = new DummyPreprocessingManager(0);

}

VisibilityManager::~VisibilityManager()
{
	delete mCullingManager;
}

void VisibilityManager::SetCullingManager(VisibilityEnvironment::CullingManagerType ocmType)
{
	if (mCullingManagerType != ocmType)
	{
		mCullingManagerType = ocmType;
		delete mCullingManager;

		switch (ocmType)
		{
		case VisibilityEnvironment::STOP_AND_WAIT:
			mCullingManager = new StopAndWaitCullingManager(NULL);
			break;

		case VisibilityEnvironment::COHERENT_HIERARCHICAL_CULLING:
			mCullingManager = new CoherentHierarchicalCullingManager(NULL);
			break;

		case VisibilityEnvironment::FRUSTUM_CULLING:
			mCullingManager = new FrustumCullingManager(NULL);
			break;
		default:
			mCullingManager = new StopAndWaitCullingManager(NULL);
			break;
		}
	}
}

CullingManager *VisibilityManager::GetCullingManager()
{
	return mCullingManager;
}

void VisibilityManager::ApplyVisibilityCulling()
{
	mCullingManager->RenderScene();
}

} // namespace GtpVisibility