////setup d3d9 stuff//Create an IDirect3D9 Objectg_pD3D9 = Direct3DCreate9(D3D_SDK_VERSION);//set the presentation parametersZeroMemory(&g_d3dpp, sizeof(g_d3dpp));g_d3dpp.BackBufferWidth = 1024;g_d3dpp.BackBufferHeight = 768;g_d3dpp.BackBufferCount = 1;g_d3dpp.BackBufferFormat = D3DFMT_R5G6B5;g_d3dpp.MultiSampleType=D3DMULTISAMPLE_NONE; //No multi-samplingg_d3dpp.MultiSampleQuality=0;  g_d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;g_d3dpp.hDeviceWindow = hWndMain;g_d3dpp.Windowed = false;g_d3dpp.EnableAutoDepthStencil = true;//z bufferg_d3dpp.AutoDepthStencilFormat = D3DFMT_D16;//z bufferg_d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;//create an IDirect3DDevice9 object, try hardware/hardwareg_pD3D9->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,hWndMain,D3DCREATE_HARDWARE_VERTEXPROCESSING,&g_d3dpp,&g_pD3DDevice9);

//setup matrixD3DXMATRIX Ortho2D;	D3DXMATRIX Identity;	//1024x768 2d perspective (0 is near, 1 is far)D3DXMatrixOrthoLH(&Ortho2D,-1024,768,0.0f,1.0f);D3DXMatrixIdentity(&Identity);g_pD3DDevice9->SetTransform(D3DTS_PROJECTION,&Ortho2D);g_pD3DDevice9->SetTransform(D3DTS_WORLD,&Identity);g_pD3DDevice9->SetTransform(D3DTS_VIEW,&Identity);

//render statesg_pD3DDevice9->SetRenderState(D3DRS_ALPHABLENDENABLE,true);//alphag_pD3DDevice9->SetRenderState(D3DRS_SRCBLEND,D3DBLEND_SRCALPHA);//alphag_pD3DDevice9->SetRenderState(D3DRS_DESTBLEND,D3DBLEND_INVSRCALPHA);//alphag_pD3DDevice9->SetRenderState(D3DRS_LIGHTING,false);//lighting offg_pD3DDevice9->SetRenderState(D3DRS_CULLMODE,D3DCULL_NONE);//turn off cullingg_pD3DDevice9->SetRenderState(D3DRS_ZENABLE,D3DZB_TRUE);//z buffer g_pD3DDevice9->SetRenderState(D3DRS_ZWRITEENABLE,true);//z buffer g_pD3DDevice9->SetRenderState(D3DRS_ZFUNC,D3DCMP_LESSEQUAL);//z buffer 

////VERTEX BUFFER//create d3d9 vertex bufferg_pD3DDevice9->CreateVertexBuffer(byte_count,D3DUSAGE_WRITEONLY,g_dwFVF,D3DPOOL_MANAGED,&g_pVertexBuffer,NULL);	//lock vertex buffervoid *vb_vertices;g_pVertexBuffer->Lock(0,0,&vb_vertices,0);//fill the Vertex Buffermemcpy(vb_vertices,data,byte_count);g_pVertexBuffer->Unlock();

//texture is not already loaded, so now a texture can be loadedD3DSURFACE_DESC surfaceDesc;LOADEDTEXTURE *newTexture= new LOADEDTEXTURE;	//load textureD3DXCreateTextureFromFileEx(g_pD3DDevice9,sFilename.c_str(),D3DX_DEFAULT,D3DX_DEFAULT,D3DX_DEFAULT,0,D3DFMT_A8R8G8B8,D3DPOOL_MANAGED,D3DX_DEFAULT,D3DX_DEFAULT,0,0,0,&newTexture->m_texture);newTexture->m_texture->GetLevelDesc(0, &surfaceDesc);//store textures filename, height and widthnewTexture->m_sFilename=sFilename;newTexture->m_nHeight=surfaceDesc.Height;newTexture->m_nWidth=surfaceDesc.Width;//put texture into listm_lstMainTextureList.push_back(newTexture);

//freeing and loading of volatile resources when app looses or gains focus//see 1st post for that bit of codevoid InitVolatileResources(){	//Init internal resources	g_pFont->OnResetDevice();}void FreeVolatileResources(){	//Free up some internal resources	g_pFont->OnLostDevice();}

//the loadedtexture structurestruct LOADEDTEXTURE    {        IDirect3DTexture9 *m_texture;     //The texture        string m_sFilename;               //The filename of the texture        int m_nWidth;                      //Width of the texture        int m_nHeight;                     //Height of the texture    };//Load texture from filevoid CTextureManager::LoadTexture(string sFilename){	      //iterate through texture list      list<LOADEDTEXTURE*>::iterator itTextures=m_lstMainTextureList.begin();      while(itTextures!=m_lstMainTextureList.end())      {          if((*itTextures)->m_sFilename==sFilename)          //texture already loaded, so return          g_Log<<"LoadTexture("<<sFilename<<") ALREADY LOADED"<<endl;      }      //texture is not already loaded, so now a texture can be loaded      D3DSURFACE_DESC surfaceDesc;      LOADEDTEXTURE *newTexture= new LOADEDTEXTURE;	      //load texture      D3DXCreateTextureFromFileEx(g_pD3DDevice9,sFilename.c_str(),D3DX_DEFAULT,D3DX_DEFAULT,D3DX_DEFAULT,0,D3DFMT_A8R8G8B8,D3DPOOL_MANAGED,D3DX_DEFAULT,D3DX_DEFAULT,0,0,0,&newTexture->m_texture);      newTexture->m_texture->GetLevelDesc(0, &surfaceDesc);      //store textures filename, height and width      newTexture->m_sFilename=sFilename;      newTexture->m_nHeight=surfaceDesc.Height;      newTexture->m_nWidth=surfaceDesc.Width;      //put texture into list      m_lstMainTextureList.push_back(newTexture);      //texture now loaded      g_Log<<"LoadTexture("<<sFilename<<") SUCCEEDED"<<endl;      return;}//Clear all texturesvoid CTextureManager::ClearTextures(void){		list<LOADEDTEXTURE*>::iterator itTextures;	//iterate through texture list    for(itTextures=m_lstMainTextureList.begin();itTextures!=m_lstMainTextureList.end();itTextures++)    {		//Release texture        if ((*itTextures)->m_texture)			(*itTextures)->m_texture->Release();        (*itTextures)->m_texture=NULL;        		//delete loadedtexture object        delete (*itTextures);    }    //Clear entire list    m_lstMainTextureList.clear();	g_Log<<endl<<"ClearTextures SUCCEEDED"<<endl;}//Set texturevoid CTextureManager::SetTexture(string sFilename){		//set iterator	list<LOADEDTEXTURE*>::iterator itTextures=m_lstMainTextureList.begin();	while(itTextures!=m_lstMainTextureList.end())	{		//found texture		if((*itTextures)->m_sFilename==sFilename)		{			//set active texture			g_pD3DDevice9->SetTexture(0,(*itTextures)->m_texture);			g_Log<<"SetTexture("<<sFilename<<") SUCCEEDED"<<endl;			return;		}	}}

//void CTextureManager::LoadTexture(string sFilename)while(itTextures!=m_lstMainTextureList.end())      {          if((*itTextures)->m_sFilename==sFilename)          //texture already loaded, so return          g_Log<<"LoadTexture("<<sFilename<<") ALREADY LOADED"<<endl;      }

//void CTextureManager::SetTexture(string sFilename)while(itTextures!=m_lstMainTextureList.end())	{		//found texture		if((*itTextures)->m_sFilename==sFilename)		{			//set active texture			g_pD3DDevice9->SetTexture(0,(*itTextures)->m_texture);			g_Log<<"SetTexture("<<sFilename<<") SUCCEEDED"<<endl;			return;		}	}

//Load texture from filevoid CTextureManager::LoadTexture(string sFilename){		//iterate through texture list	list<LOADEDTEXTURE*>::iterator itTextures=m_lstMainTextureList.begin();		while(itTextures!=m_lstMainTextureList.end())	{		if((*itTextures)->m_sFilename==sFilename)		{			//texture already loaded, so return			g_Log<<"LoadTexture("<<sFilename<<") ALREADY LOADED"<<endl;			return;		}		else ++itTextures;	}	//texture is not already loaded, so now a texture can be loaded	D3DSURFACE_DESC surfaceDesc;	LOADEDTEXTURE *newTexture=new LOADEDTEXTURE;	//load texture	D3DXCreateTextureFromFileEx(g_pD3DDevice9,sFilename.c_str(),D3DX_DEFAULT,D3DX_DEFAULT,D3DX_DEFAULT,0,D3DFMT_A8R8G8B8,D3DPOOL_MANAGED,D3DX_DEFAULT,D3DX_DEFAULT,0,0,0,&newTexture->m_texture);	newTexture->m_texture->GetLevelDesc(0,&surfaceDesc);//stops at this line	//store textures filename, height and width	newTexture->m_sFilename=sFilename;	newTexture->m_nHeight=surfaceDesc.Height;	newTexture->m_nWidth=surfaceDesc.Width;	//put texture into list	m_lstMainTextureList.push_back(newTexture);	//texture now loaded	g_Log<<"LoadTexture("<<sFilename<<") SUCCEEDED"<<endl;	return;}