#pragma once

#include "IEngine.h"
#include "IRenderTargetBase.h"
#include "../Commands/CommandUserBase.h"


class RenderTargetBase
	: public IRenderTargetBase
	, public CommandUserBase
{
protected:
	static const unsigned char SetRenderTargetCommandType = 0;

public:
	RenderTargetBase(IEngine& argEngine);
	virtual ~RenderTargetBase();

	virtual void set_ClearDepth(float argValue) { m_ClearDepthStencilBufferDepth = argValue; }
	virtual float get_ClearDepth() const { return m_ClearDepthStencilBufferDepth; }

	virtual void set_ClearStencil(unsigned char argValue) { m_ClearDepthStencilBufferStencil = argValue; }
	virtual unsigned char get_ClearStencil() const { return m_ClearDepthStencilBufferStencil; }

	virtual void set_ClearColor(const D3DXCOLOR& argValue) { m_ClearColorBufferColor = argValue; }
	virtual D3DXCOLOR get_ClearColor() const { return m_ClearColorBufferColor; }

	virtual void set_ViewPort(const ViewPort& argValue);
	virtual ViewPort get_ViewPort() const { return m_ViewPort; }

	virtual uint32 get_RenderTargetWidth() const = 0;
	virtual uint32 get_RenderTargetHeight() const = 0;
	virtual DataFormat::Enumeration get_RenderTargetFormat() const = 0;

	virtual void set_HasDepthStencilBuffer(bool argState);
	virtual bool get_HasDepthStencilBuffer() const { return m_DepthStencilView != NULL; }

	virtual void AddAdditionalRenderTarget(IRenderTargetBase& argTarget);
	virtual void RemoveAdditionalRenderTarget(IRenderTargetBase& argTarget);

	virtual ID3D10RenderTargetView* get_DX10RenderTargetView() const { return m_RenderTargetView; }
	virtual ID3D10DepthStencilView* get_DX10DepthStencilView() const { return m_DepthStencilView; }

	virtual void Bind(DWORD argBindFlags = BindFlags::Default);
	virtual void UnbindAllRenderTargets();

	// ICommandUser
	virtual CommandExecuteResult::Enumeration ExecuteCommand(unsigned char argCommandType, ICommandBuffer& argCurrentBuffer, uint32 argCurrentPositon);

protected:
	void Clear(DWORD argBindFlags = BindFlags::Default);

	virtual void Uninitialize();
	void BuildViewPortAndRenderTargetData();
	void KillViewPortAndRenderTargetData();

protected:
	IEngine& m_Engine;

	float m_ClearDepthStencilBufferDepth;
	unsigned char m_ClearDepthStencilBufferStencil;
	D3DXCOLOR m_ClearColorBufferColor;

	ViewPort m_ViewPort;
	
	ID3D10RenderTargetView* m_RenderTargetView;
	ID3D10DepthStencilView* m_DepthStencilView;
	ID3D10Texture2D* m_DepthStencilTexture;

	uint32 m_MultiSampleCount;
	uint32 m_MultiSampleQuality;

	std::vector<IRenderTargetBase*> m_AdditionalRenderingTargets;
	ID3D10RenderTargetView** m_RenderingTargets;
	D3D10_VIEWPORT* m_D3D10Viewports;
	uint32 m_ActiveRenderTargetCount;

	DWORD m_LastBindFlags;

	ID3D10ShaderResourceView* m_EmptyShaderResView[128];
};