#ifndef PosteffectManager_h__
#define PosteffectManager_h__
#include <vector>
#include "render/PostEffect.h"

namespace LifeGraphics
{
	class PostEffectManager
	{
	private:
		std::vector<PostEffect*> postEffects;
		SceneDescriptor descriptor;
	public:
		PostEffectManager()
		{
		}
		~PostEffectManager()
		{
		}
		void Init(SceneDescriptor& desc)
		{
			descriptor = desc;
		}

		void Add(PostEffect* effect)
		{
			postEffects.push_back(effect);
		}

		ITexture2D* Execute(ITexture2D* source, ITexture2D* depth, ITexture2D* depthTex, float dt)
		{
			ITexture2D* tmpResult = (ITexture2D*)0;

			for (UINT i = 0; i < postEffects.size(); i++)
			{
				PostEffectParams params;
				params.timeElapsed = dt;
				params.depthTarget = depth;
				params.depthTex = depthTex;

				if (tmpResult)
				{
					params.renderTarget = tmpResult;
					tmpResult = postEffects[i]->Execute(params);
				}
				else
				{
					params.renderTarget = source;
					tmpResult = postEffects[i]->Execute(params);
				}
			}
			return tmpResult;
		}
	};
}
#endif // PosteffectManager_h__