//----------------------------------------------------------------------------
// File:  C3DManager.h
// Class: C3DManager [v1]
// Type:  3D API System Managment
// Author: Ken Anderson
// Date:  11/26/04
// OS dependant: N/A
// Desc: Main 3D interface that provides access to either the opengl or Direct3d
//       renderers depending on which one is selected then links the system to the correct
//		 system.  All function calls that are common must be routed through here.
//
// Notes on Class Functionality:
// 1) Main Creation & Destruction:  These functions are created to initialize, create and destroy
//	  buffers on demand of the 3d system.
//    
//    A) Direct3d: Direct3d uses a system of vertex buffers which must be created before any 3D
//				   objects can be rendered.  The derived class of D3D should encopasses creating
//				   invalidating, restoring and destroying these vertex buffers when requires of the
//				   in cases such as mode, fullscreen/windowed, adapter and other display changes.  Since
//
//	  B) OpenGL: OpenGL uses an on demand rendering system where no vertex buffers are required, but are
//				 available.  Using simple functions, a vertex or a set of vertices can be rendered 
//				 without any initialization, invalidation, restoring or destruction of any extra buffers.
//
// Secondary Notes:
// Source code derived from the Direct3d's needs for intialization and operation, code
// will shift & develop to manage both OpenGL & Direct3d.
//
// Required headers:
// 1. D3DManager.h -- Direct3D's render manager.
// 2. OGLManager.h -- OpenGL's render manager.
//----------------------------------------------------------------------------

#ifndef __C3DMANAGER__
#define __C3DMANAGER__

#include "CRSDefs.h"
#include "D3DManager.h"
//#include "OGLManager.h"

class C3DManager
{
//private:
public:
	D3DManager* m_pD3D;
	OGLManager* m_pOGL;
	RendererType m_Renderer;

public:
	//Constructor & destructor of class.
	C3DManager(RendererType RT);
	C3DManager(const C3DManager& manager);
	~C3DManager();

	C3DERR SetRenderer(RendererType RT);

	//////////////////////////////
	// MAIN C3DMANAGER ROUTINES //
	//////////////////////////////
	C3DERR Create(void** HVWnd);
	C3DERR Destroy();

	///////////////////////////
	//  DISPLAY MANAGEMENT   //
	///////////////////////////
	C3DERR Fullscreen(bool bFullScreen);
	C3DERR Fullscreen();
	C3DERR ResizeDisplay(Rect rc);

	C3DERR ChangeDisplay(Dword dwHeight, Dword dwWidth, C3DFORMAT ColorDepthFormat, C3DDEVTYPE devtype=C3DDEV_HARDWARE);
	C3DERR ChangeDisplay(Dword dwHeight, Dword dwWidth, C3DFORMAT ColorDepthFormat, bool bWindowed, C3DDEVTYPE devtype=C3DDEV_HARDWARE);

	//////////////////////////////
    //  DISPLAY PROPERTIES      //
	//////////////////////////////
	int ReturnCurrModeNum();
	C3DERR ReturnCurrModeInfo(Dword& rdwHeight, Dword& rdwWidth, C3DFORMAT& rColorDepth);

	int ReturnNumModes();
	C3DERR ReturnModeInfo(Dword dwModeNum, Dword& rdwHeight, Dword& rdwWidth, C3DFORMAT& rColorDepth);
	C3DERR SetMode(Dword dwModeNum);
	bool IsIndex32Capable();

	//////////////////////////////
	//  PAINTING ROUTINES       //
	//////////////////////////////
	C3DERR BeginScene();
	C3DERR EndScene();
	void Clear();
	void Present();

	//////////////////////////////
    //  Capabilities            //
	//////////////////////////////
	C3DERR GetDeviceCaps(C3DCAPS& rCaps);

	//////////////////////////////
    //  TRANSFORM ROUTINES      //
	//////////////////////////////
	C3DERR SetTransform(C3DTransformState TS, SC3DMatrix4& rMatrix);
	C3DERR GetTransform(C3DTransformState TS, SC3DMatrix4& rMatrix);

	//////////////////////////////
    //   VIEWPORT ROUTINES      //
	//////////////////////////////
	C3DERR SetViewport(SC3DViewport& rVP);
	C3DERR GetViewport(SC3DViewport& rVP);

	//////////////////////////////
	//  RENDER STATE            //
	//////////////////////////////
	C3DERR SetRenderState(C3DRenderState RS, Dword dwValue);
	C3DERR SetTextureStageState(Byte byStage, C3DTextureStageState tss, Dword dwValue);
	C3DERR ClearTexture(Byte byStage);

	//////////////////////////////
	//  RENDER BANK BUFFERS		//
	//////////////////////////////
	C3DERR ProcessVertexBuffer(HRBE hVertSlot);
	C3DERR ProcessTextureBuffer(HRBE hTextSlot);
	C3DERR ProcessIndexBuffer(HRBE hIndxSlot);
	void DestroyVertexBuffer(HRBE hVertSlot);
	void DestroyTextureBuffer(HRBE hTextSlot);
	void DestroyIndexBuffer(HRBE hIndxSlot);

	//TO be removed
  	C3DERR UploadBanks();
};

#endif