genesis-3d_engine/Engine/graphicsystem/GraphicSystem.h

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU

http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#ifndef GRAPHICSYSTEM_H_
#define GRAPHICSYSTEM_H_
#include "rendersystem/RenderSystem.h"
#include "Camera/Camera.h"
#include "Renderable/Renderable.h"
#include "Renderable/QuadRenderable.h"
#include "Light/Light.h"
#include "base/RenderToTexture.h"
#include "base/MultipleRenderToTexture.h"
#include "core/singleton.h"
#include "messaging/batchmessage.h"
#include "framesync/framesynchandlerthread.h"
#include "rendersystem/RenderSystemThreadHandler.h"
#include "rendersystem/base/RenderDeviceTypes.h"
#include "vis/visentity.h"
#include "vis/visserver.h"
#include "vis/visquery.h"
#include "graphicsystem/base/StreamBufferPool.h"
#include "ViewPortWindow.h"
#include "util/stack.h"
#include "foundation/delegates/delegatetype.h"


#define USE_RENDER_THREAD 0 

namespace Graphic
{
	class RenderObject;

	//typedef Util::Array<Camera*> CameraList;
	//typedef Util::Array< GPtr<Light> > LightList;
	typedef Util::Array<RenderScene*> RenderSceneList;
	typedef Delegates::delegates::CMultiDelegate1<Camera*> EventHandle_BeforeRenderCamera;


#if USE_RENDER_THREAD
	class GraphicSystem : public Interface::InterfaceBase
#else
	class GraphicSystem :  public Core::RefCounted
#endif
	{ 
#if USE_RENDER_THREAD
		__DeclareSubClass(GraphicSystem,InterfaceBase);
#else
		__DeclareClass(GraphicSystem);
#endif

		__DeclareImageSingleton(GraphicSystem);
	public:
		GraphicSystem();
		virtual ~GraphicSystem();

		float GetHorizontalTexelOffset();
		float GetVerticalTexelOffset();
		float GetMinimumDepthInputValue();
		float GetMaximumDepthInputValue();

		void Open(WindHandle hWnd, int width, int height, RenderBase::PixelFormat::Code format);
		void OnUpateFrame();
		void RenderAll();

		void OnDeviceLost();
		bool CheckReset();
		void OnDeviceReset();

		const Camera* GetRenderingCamera();

		GPtr<ViewPortWindow> CreateViewPortWindow( WindHandle hWnd, const RenderBase::DisplayMode& mode);
		void DestroyViewPortWindow(GPtr<ViewPortWindow>& view);
		const GPtr<ViewPortWindow>& FindViewPortWindow( WindHandle hWnd ) const;
		ViewPortWindow* GetMainViewPortWindow() const;
		void Close();

		//////////////////////////////////////////////////////////////////////////
		void OnBeginFrame();
		void OnEndFrame();

		/// ================================ Render Functions =================================================
		void SetViewport(const Camera::Viewport& vp);

		void SetVertexShaderConstantVectorF(const int& reg, const float4* val, const int& vec4count);
		void SetPixelShaderConstantVectorF(const int& reg, const float4* val, const int& vec4count);

		void SetVertexShaderConstantFloat(const int& reg, const float& val);
		void SetPixelShaderConstantFloat(const int& reg, const float& val);

		void SetVertexShaderConstantMatrixF(const int& reg, const matrix44* val, const int& matrixCount);
		void SetPixelShaderConstantMatrixF(const int& reg, const matrix44* val, const int& matrixCount);


		RenderBase::GPUProgramHandle CreateShaderProgram(GPtr<RenderBase::GPUProgram> program);
		void SetShaderProgram(RenderBase::GPUProgramHandle handle);
		void RemoveShaderProgram(RenderBase::GPUProgramHandle handle);

		//RenderBase::PrimitiveGroup* GetPrimitiveGroup(const RenderBase::PrimitiveHandle& handle) const;

		RenderBase::PrimitiveHandle CreatePrimitiveHandle(const RenderBase::VertexBufferData* vbd, const RenderBase::IndexBufferData* ibd = NULL);
		RenderBase::PrimitiveHandle CreatePrimitiveHandle(const VertexBufferData2* vbd2, const IndexBufferData2* ibd2 = NULL);

		void UpdatePrimitiveHandle(RenderBase::PrimitiveHandle& handle, const DynamicBuffer* vertices, const DynamicBuffer* indices = NULL);
		void ChangePrimitiveHandle(RenderBase::PrimitiveHandle& handle, const RenderBase::VertexBufferData* vbd, const RenderBase::IndexBufferData* ibd = NULL);
		void ChangePrimitiveHandle(RenderBase::PrimitiveHandle& handle, const VertexBufferData2* vbd2, const IndexBufferData2* ibd2 = NULL);

		void GetVertexComponents(const RenderBase::PrimitiveHandle& handle, RenderBase::VertexComponents& vcs);
		void GetVertexDesc(const RenderBase::PrimitiveHandle& handle, RenderBase::VERTEX_DESC& desc);
		void GetIndexDesc(const RenderBase::PrimitiveHandle& handle, RenderBase::INDEX_DESC& desc);
		void GetTextureDesc(const RenderBase::TextureHandle& handle, RenderBase::TEXTURE_DESC& desc);

		void DrawPrimitive(RenderBase::PrimitiveHandle handle, SizeT startVertice, SizeT numVertice, SizeT startIndice, SizeT numIndice);
		void DrawPrimitive(RenderBase::PrimitiveHandle handle);
		void RemovePrimitive(const RenderBase::PrimitiveHandle &handle);

		RenderBase::RenderStateDescHandle CreateRenderStateDesc( GPtr<RenderBase::RenderStateDesc> rsObject);
		void SetRenderState( GPtr<RenderBase::RenderStateDesc> rsObject, const uint& shaderMask);

		RenderBase::RenderTargetHandle CreateRenderTarget( GPtr<RenderBase::RenderTarget> rt, RenderBase::TextureHandle& texhandle );
		void SetRenderTarget(RenderBase::RenderTargetHandle handle,SizeT index = 0,uint clearflag = (1<<0));
		void SetRenderTarget(const GPtr<RenderToTexture>& rt,SizeT index = 0,uint clearflag = (1<<0));
		RenderBase::RenderTargetHandle GetRenderTarget(SizeT index = 0);

		void SetRenderTargetClearColor(const GPtr<RenderToTexture>& rt,const Math::float4& clearColor);
		void ReSizeRenderTarget(RenderBase::RenderTargetHandle handle, int width, int height);
		void ReSizeRenderTarget(GPtr<RenderToTexture> rt, int width, int height);
		void RemoveRenderTarget(const RenderBase::RenderTargetHandle &handle);
		void RemoveMultipleRenderTarget(const RenderBase::MultipleRenderTargetHandle& handle);
		void CopyRenderTarget(RenderBase::RenderTargetHandle srcHandle, const float4& srcRect,RenderBase::RenderTargetHandle desHandle, const float4& desRect);

		RenderBase::MultipleRenderTargetHandle CreateMultipleRenderTarget( GPtr<RenderBase::MultipleRenderTarget> mrt, Util::Array< RenderBase::RenderTargetHandle >& handles);
		void SetMultipleRenderTarget(RenderBase::MultipleRenderTargetHandle handle, bool resume = false);
		void SetMultipleRenderTarget(GPtr<MultipleRenderToTexture> mrt, bool resume = false);
		void ReSizeMultipleRenderTarget(RenderBase::MultipleRenderTargetHandle handle, int width, int height);
		void ReSizeMultipleRenderTarget(GPtr<MultipleRenderToTexture> mrt, int width, int height);

		RenderBase::TextureHandle CreateTexture( GPtr<RenderBase::Texture> tex);
		void SetTexture(SizeT index,RenderBase::TextureHandle handle);
		void SetTexture(SizeT index,const GPtr<RenderToTexture>& rtt);
		void UpdateTexture(RenderBase::TextureHandle texHandle, RenderBase::Texture::UpdateFunction texMapInfo, void* tag);
		void UpdateTexture(RenderBase::TextureHandle texHandle, GPtr<RenderBase::Texture> texture);
		void ChangeTexture(RenderBase::TextureHandle texHandle, GPtr<RenderBase::Texture> texture);
		void RemoveTexture(const RenderBase::TextureHandle &handle);

		//////////////////////////////////////////////////////////////////////////
		//Fixed Pipeline Functions
		void SetClipPlane(SizeT index, const Math::float4& cplane);

		Camera* GetCameraByType(CameraOrder co) const;
		GPtr<RenderBase::RenderDisplay> GetRenderDisplay();

		// Apply display parameters
		void ApplyDisplayParams();

		const RenderBase::GraphicCardCapability GetGraphicCardCapability();

		void SetWireFrameMode(bool wireframe = false);

		typedef void (*DebugDrawCallBack)();
		inline void SetFontCallBack(DebugDrawCallBack call_back)
		{
			m_debugDrawCallBack = call_back;
		}



		EventHandle_BeforeRenderCamera      m_BeforeDrawEvent;

		void AddQuadRenderable(QuadRenderable* const& quad);

		void ResetAllQuadRenderable() const;

		void SetDeviceLostCallBack(RenderBase::deviceLostCallBackFunc func);
		
		void PushTargetWindow(ViewPortWindow* target);

		void RenderCamera(Camera* camera);

		void SortRenderScene();

		void AddRenderScene(RenderScene* pScene);

		void RemoveRenderScene(RenderScene* pScene);

		Camera* GetSceneDefaultCamera() const;
		RenderSceneList& GetRenderSceneList();

		const GPtr<RenderToTexture>& GetDefaultWhiteRTT() const;

		//Internal Call!!!!!!!!!!!!!!!!

		void _ViewPortDirty();

		MemoryBlock _GetBlock(SizeT sizeInByte);
		const StreamBufferPool* _GetPool() const;

		void _PushRenderCamera(Camera* const& pCamera);

		void _PopRenderCamera();

		void _SetRenderWindow(ViewPortWindow* target);

		void _SetBackBuffer(ViewPortWindow* target);
	private:

		struct WinCache
		{
			ViewPortWindow* window;
			bool nocleare;
			inline WinCache()
				:window(0)
				,nocleare(true)
			{
			}
		};
		void _SetRenderTarget(const RenderBase::RenderTargetHandle& handle, SizeT index);

		WinCache* _FindInCache(ViewPortWindow* target) const;
		void _SetupDefaultObjects();
		void _DestroyDefaultObjects();
		void _PushTargetWindow(ViewPortWindow* target);
		void _ClearWindowCache();
		void _ApplyBackBuffer();
		void _ApplyWindows();
		void _RenderCamera(Camera* camera);

		void _OnDeviceLost();
		void _OnDeviceReset();
		GPtr<ViewPortWindow> _CreateDefaultViewPortWindow( WindHandle hWnd , const RenderBase::DisplayMode& mode);
		void _RemoveRenderResource(const RenderBase::RenderResourceHandle &handle);


		void OpenRenderSystem(WindHandle hWnd);
		void StartRenderSystem(int width, int height);
		void CloseRenderSystem();

		DebugDrawCallBack m_debugDrawCallBack;
		GPtr<RenderBase::RenderDisplay> m_graphicDisplay;

#if USE_RENDER_THREAD
	public:
		//////////////////////////////////////////////////////////////////////////
		/// add batched message
		void AddBatchMessage(const GPtr<Messaging::Message>& msg);
		/// enter lock-step mode
		void EnterLockStepMode();
		/// leave lock-step mode
		void LeaveLockStepMode();
		/// call when game thread arrives at frame sync point
		void GameThreadWaitForFrameSync();
	private:
		GPtr<RenderBase::RenderSystemThreadHandler> m_renderThreadHandler;
		GPtr<FrameSync::FrameSyncHandlerThread> m_frameSyncHandlerThread;
		GPtr<Messaging::BatchMessage> m_batchMessage;
		Threading::ThreadId m_mainThreadId;
#else
	private:
		GPtr<RenderBase::RenderSystem> mRenderSystem;
#endif
		enum _viewport
		{
			vp_default,
		};

		enum _renderscene
		{
			rs_default,
		};

		GPtr<StreamBufferPool> m_streamBufferPool;

		typedef Util::Array< GPtr<ViewPortWindow> > ViewPorts;
		typedef Util::Array<WinCache> ViewportWindows;
		typedef Util::Array<RenderBase::RenderTargetHandle> RenderTargets;

		ViewPorts							m_ViewPortLists;
	
		Util::Stack<Camera*>				m_renderingCameraStack;
		ViewportWindows						m_windowCache;
		IndexT								m_nViewPort;

		bool								m_ViewPortDirty;

		GPtr<RenderToTextureManager>        m_RenderToTexturesManager;

		Util::Array< QuadRenderable* >		m_AllQuadRenderable;

		RenderSceneList                     m_RenderSceneLists;

		GPtr<RenderToTexture>				m_DefaultWhiteRTT;

		RenderTargets						m_RenderTargetCache;
	};


	inline GPtr<RenderBase::RenderDisplay> GraphicSystem::GetRenderDisplay()
	{
		return m_graphicDisplay;
	}

	inline const RenderBase::GraphicCardCapability GraphicSystem::GetGraphicCardCapability()
	{
		return mRenderSystem->GetGraphicCardCapability();
	}

	inline void GraphicSystem::SetWireFrameMode(bool wireframe /* = false */)
	{
		mRenderSystem->SetWireFrameMode(wireframe);
	}

	inline float GraphicSystem::GetHorizontalTexelOffset()
	{
		return mRenderSystem->GetHorizontalTexelOffset();
	}

	inline float GraphicSystem::GetVerticalTexelOffset()
	{
		return mRenderSystem->GetVerticalTexelOffset();
	}

	inline float GraphicSystem::GetMinimumDepthInputValue()
	{
		return mRenderSystem->GetMinimumDepthInputValue();
	}

	inline float GraphicSystem::GetMaximumDepthInputValue()
	{
		return mRenderSystem->GetMinimumDepthInputValue();
	}

	inline void GraphicSystem::_ViewPortDirty()
	{
		m_ViewPortDirty = true;
	}

	inline const StreamBufferPool* GraphicSystem::_GetPool() const
	{
		return m_streamBufferPool.get();
	}

	inline void GraphicSystem::SetDeviceLostCallBack(RenderBase::deviceLostCallBackFunc func)
	{
		mRenderSystem->SetDeviceLostCallBack(func);
	}

	inline const GPtr<RenderToTexture>& GraphicSystem::GetDefaultWhiteRTT() const
	{
		return m_DefaultWhiteRTT;
	}

	//#if RENDERDEVICE_OPENGLES
	//	inline void GraphicSystem::SetDeviceLost()
	//	{
	//		mRenderSystem->SetDeviceLost();
	//	}
	//
	//	inline bool GraphicSystem::IsDeviceLost() const
	//	{
	//		return mRenderSystem->IsDeviceLost();
	//	}
	//#endif

	inline void GraphicSystem::AddQuadRenderable(QuadRenderable* const& quad)
	{
		IndexT res = m_AllQuadRenderable.FindIndex(quad);

		if (res == InvalidIndex)
		{
			m_AllQuadRenderable.Append(quad);
		}
	}

	inline void GraphicSystem::_PushRenderCamera(Camera* const& pCamera)
	{
		m_renderingCameraStack.Push(pCamera);
	}

	inline void GraphicSystem::_PopRenderCamera()
	{
		m_renderingCameraStack.Pop();
	}

	inline Camera* GraphicSystem::GetSceneDefaultCamera() const
	{
		if(m_RenderSceneLists.Size())
		{
			return m_RenderSceneLists[rs_default]->GetDefaultCamera();
		}

		return NULL;
	}

	inline RenderSceneList& GraphicSystem::GetRenderSceneList()
	{
		return m_RenderSceneLists;
	}
}
#endif// GRAPHICSYSTEM_H_