#include <d3d9.h>
#include <d3dx9.h>

LPDIRECT3D9             g_pD3D       = NULL; // Used to create the D3DDevice
LPDIRECT3DDEVICE9       g_pd3dDevice = NULL; // Our rendering device
LPDIRECT3DTEXTURE9      g_pTexture   = NULL; // Our texture

HRESULT InitD3D( HWND hWnd )
{
    // Create the D3D object, which is needed to create the D3DDevice.
    if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
        return E_FAIL;

    D3DPRESENT_PARAMETERS d3dpp; 
    ZeroMemory( &d3dpp, sizeof(d3dpp) );
    d3dpp.Windowed = TRUE;
    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
    d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;

    // Create the Direct3D device. Here we are using the default adapter (most
    // systems only have one, unless they have multiple graphics hardware cards
    // installed) and requesting the HAL (which is saying we want the hardware
    // device rather than a software one). Software vertex processing is 
    // specified since we know it will work on all cards. On cards that support 
    // hardware vertex processing, though, we would see a big performance gain 
    // by specifying hardware vertex processing.
    if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
                                      D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                                      &d3dpp, &g_pd3dDevice ) ) )
    {
        return E_FAIL;
    }

    // Device state would normally be set here
    // Turn off culling
    g_pd3dDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE );

    // Turn off D3D lighting
    g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE );

    // Turn on the zbuffer
    g_pd3dDevice->SetRenderState( D3DRS_ZENABLE, TRUE );

    return S_OK;
}
VOID Cleanup()
{
    if( g_pd3dDevice != NULL) 
        g_pd3dDevice->Release();

    if( g_pD3D != NULL)
        g_pD3D->Release();
}
VOID Render()
{
    if( NULL == g_pd3dDevice )
        return;

    // Clear the backbuffer to a blue color
    g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,255), 1.0f, 0 );
    
    // Begin the scene
    if( SUCCEEDED( g_pd3dDevice->BeginScene() ) )
    {
        // Rendering of scene objects can happen here
    
        // End the scene
        g_pd3dDevice->EndScene();
    }

    // Present the backbuffer contents to the display
    g_pd3dDevice->Present( NULL, NULL, NULL, NULL );
}
LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
    switch( msg )
    {
        case WM_DESTROY:
            Cleanup();
            PostQuitMessage( 0 );
            return 0;

        case WM_PAINT:
            Render();
            ValidateRect( hWnd, NULL );
            return 0;
    }

    return DefWindowProc( hWnd, msg, wParam, lParam );
}
INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT )
{
    // Register the window class
    WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L, 
                      GetModuleHandle(NULL), NULL, NULL, NULL, NULL,
                      "D3D Tutorial", NULL };
    RegisterClassEx( &wc );

    // Create the application's window
    HWND hWnd = CreateWindow( "D3D Tutorial", "D3D Tutorial 01: CreateDevice", 
                              WS_OVERLAPPEDWINDOW, 100, 100, 300, 300,
                              GetDesktopWindow(), NULL, wc.hInstance, NULL );

    // Initialize Direct3D
   // Initialize Direct3D
    if( SUCCEEDED( InitD3D( hWnd ) ) )
    {
        // Create the scene geometry
        if( SUCCEEDED( InitGeometry() ) )
        {
            // Show the window
            ShowWindow( hWnd, SW_SHOWDEFAULT );
            UpdateWindow( hWnd );

            // Enter the message loop
            MSG msg;
            ZeroMemory( &msg, sizeof(msg) );
            while( msg.message!=WM_QUIT )
            {
                if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) )
                {
                    TranslateMessage( &msg );
                    DispatchMessage( &msg );
                }
                else
                    Render();
            }
        }
    }

    UnregisterClass( "D3D Tutorial", wc.hInstance );
    return 0;
}
HRESULT InitGeometry()
{
    // Use D3DX to create a texture from a file based image
    if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice, "banana.bmp", &g_pTexture ) ) )
    {
        // If texture is not in current folder, try parent folder
        if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice, "..\\banana.bmp", &g_pTexture ) ) )
        {
            MessageBox(NULL, "Could not find banana.bmp", "Textures.exe", MB_OK);
            return E_FAIL;
        }
    }  
     
    return S_OK;

}

/* Global Declarations */LPD3DXSPRITE d3dSprite = NULL;  // This is our sprite interfaceHRESULT InitD3D(){   // ...   // All of your code you have here   // Create our sprite interface   if( FAILED( D3DXCreateSprite( g_pd3dDevice, &d3dSprite ) ) )   {      return E_FAIL;   }}void Render(){    // ...    // All of your code previous to begin scene here    // Begin the scene    if( SUCCEEDED( g_pd3dDevice->BeginScene() ) )    {        // Rendering of scene objects can happen here                // Begin sprite        d3dSprite->Begin( 0 );        // Draw our texture at position (100,100)        D3DXVECTOR3 screenPos = D3DXVECTOR3( 100.0f, 100.0f, 0.0f );        // Specify NULL for 2nd and 3rd parameters to draw        //  the entire image at (100,100).        // Specify 0xFFFFFFFF for the modulation color to retain        //  the original color        d3dSprite->Draw( g_pTexture, NULL, NULL, &screenPos, 0xFFFFFFFF );        // End the scene        g_pd3dDevice->EndScene();    }    // ...    // All of your code after end scene here}void Cleanup(){    // ...    // All of your other code here    d3dSprite->Release();    d3dSprite = NULL;}