Beginning Game Audio Programming (EN+Source)

//----------------------------------------------------------------------------- // File: D3DApp.cpp // // Desc: Application class for the Direct3D samples framework library. // // Copyright (c) 1998-2000 Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- #define STRICT #include <windows.h> #include <windowsx.h> #include <basetsd.h> #include <mmsystem.h> #include <stdio.h> #include <tchar.h> #include <D3D8.h> #include "D3DApp.h" #include "D3DUtil.h" #include "DXUtil.h" #include "D3DRes.h" //----------------------------------------------------------------------------- // Global access to the app (needed for the global WndProc()) //----------------------------------------------------------------------------- static CD3DApplication* g_pD3DApp = NULL; //----------------------------------------------------------------------------- // Name: CD3DApplication() // Desc: Constructor //----------------------------------------------------------------------------- CD3DApplication::CD3DApplication() { g_pD3DApp = this; m_dwNumAdapters = 0; m_dwAdapter = 0L; m_pD3D = NULL; m_pd3dDevice = NULL; m_hWnd = NULL; m_hWndFocus = NULL; m_bActive = FALSE; m_bReady = FALSE; m_dwCreateFlags = 0L; m_bFrameMoving = TRUE; m_bSingleStep = FALSE; m_fFPS = 0.0f; m_strDeviceStats[0] = _T('\0'); m_strFrameStats[0] = _T('\0'); m_strWindowTitle = _T("D3D8 Application"); m_dwCreationWidth = 400; m_dwCreationHeight = 300; m_bUseDepthBuffer = FALSE; m_dwMinDepthBits = 16; m_dwMinStencilBits = 0; m_bShowCursorWhenFullscreen = FALSE; } //----------------------------------------------------------------------------- // Name: WndProc() // Desc: Static msg handler which passes messages to the application class. //----------------------------------------------------------------------------- LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) { return g_pD3DApp->MsgProc( hWnd, uMsg, wParam, lParam ); } //----------------------------------------------------------------------------- // Name: Create() // Desc: //----------------------------------------------------------------------------- HRESULT CD3DApplication::Create( HINSTANCE hInstance ) { HRESULT hr; // Create the Direct3D object m_pD3D = Direct3DCreate8( D3D_SDK_VERSION ); if( m_pD3D == NULL ) return DisplayErrorMsg( D3DAPPERR_NODIRECT3D, MSGERR_APPMUSTEXIT ); // Build a list of Direct3D adapters, modes and devices. The // ConfirmDevice() callback is used to confirm that only devices that // meet the app's requirements are considered. if( FAILED( hr = BuildDeviceList() ) ) { SAFE_RELEASE( m_pD3D ); return DisplayErrorMsg( hr, MSGERR_APPMUSTEXIT ); } // Unless a substitute hWnd has been specified, create a window to // render into if( m_hWnd == NULL) { // Register the windows class WNDCLASS wndClass = { 0, WndProc, 0, 0, hInstance, LoadIcon( hInstance, MAKEINTRESOURCE(IDI_MAIN_ICON) ), LoadCursor( NULL, IDC_ARROW ), (HBRUSH)GetStockObject(WHITE_BRUSH), NULL, _T("D3D Window") }; RegisterClass( &wndClass ); // Set the window's initial style m_dwWindowStyle = WS_POPUP|WS_CAPTION|WS_SYSMENU|WS_THICKFRAME| WS_MINIMIZEBOX|WS_VISIBLE; // Set the window's initial width RECT rc; SetRect( &rc, 0, 0, m_dwCreationWidth, m_dwCreationHeight ); AdjustWindowRect( &rc, m_dwWindowStyle, TRUE ); // Create the render window m_hWnd = CreateWindow( _T("D3D Window"), m_strWindowTitle, m_dwWindowStyle, CW_USEDEFAULT, CW_USEDEFAULT, (rc.right-rc.left), (rc.bottom-rc.top), 0L, LoadMenu( hInstance, MAKEINTRESOURCE(IDR_MENU) ), hInstance, 0L ); } // The focus window can be a specified to be a different window than the // device window. If not, use the device window as the focus window. if( m_hWndFocus == NULL ) m_hWndFocus = m_hWnd; // Save window properties m_dwWindowStyle = GetWindowLong( m_hWnd, GWL_STYLE ); GetWindowRect( m_hWnd, &m_rcWindowBounds ); GetClientRect( m_hWnd, &m_rcWindowClient ); // Initialize the app's custom scene stuff if( FAILED( hr = OneTimeSceneInit() ) ) { SAFE_RELEASE( m_pD3D ); return DisplayErrorMsg( hr, MSGERR_APPMUSTEXIT ); } // Initialize the 3D environment for the app if( FAILED( hr = Initialize3DEnvironment() ) ) { SAFE_RELEASE( m_pD3D ); return DisplayErrorMsg( hr, MSGERR_APPMUSTEXIT ); } // Setup the app so it can support single-stepping DXUtil_Timer( TIMER_START ); // The app is ready to go m_bReady = TRUE; return S_OK; } //----------------------------------------------------------------------------- // Name: SortModesCallback() // Desc: Callback function for sorting display modes (used by BuildDeviceList). //----------------------------------------------------------------------------- int SortModesCallback( const VOID* arg1, const VOID* arg2 ) { D3DDISPLAYMODE* p1 = (D3DDISPLAYMODE*)arg1; D3DDISPLAYMODE* p2 = (D3DDISPLAYMODE*)arg2; if( p1->Format > p2->Format ) return -1; if( p1->Format < p2->Format ) return +1; if( p1->Width < p2->Width ) return -1; if( p1->Width > p2->Width ) return +1; if( p1->Height < p2->Height ) return -1; if( p1->Height > p2->Height ) return +1; return 0; } //----------------------------------------------------------------------------- // Name: BuildDeviceList() // Desc: //----------------------------------------------------------------------------- HRESULT CD3DApplication::BuildDeviceList() { const DWORD dwNumDeviceTypes = 2; const TCHAR* strDeviceDescs[] = { _T("HAL"), _T("REF") }; const D3DDEVTYPE DeviceTypes[] = { D3DDEVTYPE_HAL, D3DDEVTYPE_REF }; BOOL bHALExists = FALSE; BOOL bHALIsWindowedCompatible = FALSE; BOOL bHALIsDesktopCompatible = FALSE; BOOL bHALIsSampleCompatible = FALSE; // Loop through all the adapters on the system (usually, there's just one // unless more than one graphics card is present). for( UINT iAdapter = 0; iAdapter < m_pD3D->GetAdapterCount(); iAdapter++ ) { // Fill in adapter info D3DAdapterInfo* pAdapter = &m_Adapters[m_dwNumAdapters]; m_pD3D->GetAdapterIdentifier( iAdapter, 0, &pAdapter->d3dAdapterIdentifier ); m_pD3D->GetAdapterDisplayMode( iAdapter, &pAdapter->d3ddmDesktop ); pAdapter->dwNumDevices = 0; pAdapter->dwCurrentDevice = 0; // Enumerate all display modes on this adapter D3DDISPLAYMODE modes[100]; D3DFORMAT formats[20]; DWORD dwNumFormats = 0; DWORD dwNumModes = 0; DWORD dwNumAdapterModes = m_pD3D->GetAdapterModeCount( iAdapter ); // Add the adapter's current desktop format to the list of formats formats[dwNumFormats++] = pAdapter->d3ddmDesktop.Format; for( UINT iMode = 0; iMode < dwNumAdapterModes; iMode++ ) { // Get the display mode attributes D3DDISPLAYMODE DisplayMode; m_pD3D->EnumAdapterModes( iAdapter, iMode, &DisplayMode ); // Filter out lo