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- //-----------------------------------------------------------------------------
- // File: EnhancedMesh.cpp
- //
- // Desc: Sample showing enhanced meshes in D3D
- //
- // Copyright (c) 1999-2000 Microsoft Corporation. All rights reserved.
- //-----------------------------------------------------------------------------
- #define STRICT
- #include <windows.h>
- #include <commdlg.h>
- #include <tchar.h>
- #include <stdio.h>
- #include <d3dx8.h>
- #include "D3DApp.h"
- #include "D3DFont.h"
- #include "D3DUtil.h"
- #include "DXUtil.h"
- #include "resource.h"
-
-
-
- //-----------------------------------------------------------------------------
- // Name: class CMyD3DApplication
- // Desc: Application class. The base class (CD3DApplication) provides the
- // generic functionality needed in all Direct3D samples. CMyD3DApplication
- // adds functionality specific to this sample program.
- //-----------------------------------------------------------------------------
- class CMyD3DApplication : public CD3DApplication
- {
- TCHAR m_strMeshFilename[512];
- TCHAR m_strInitialDir[512];
-
- LPD3DXMESH m_pMeshSysMem; // system memory version of mesh, lives through resize's
- LPD3DXMESH m_pMeshEnhanced; // vid mem version of mesh that is enhanced
- UINT m_dwNumSegs; // number of segments per edge (tesselation level)
- D3DXMATERIAL* m_pMaterials; // pointer to material info in m_pbufMaterials
- LPDIRECT3DTEXTURE8* m_ppTextures; // array of textures, entries are NULL if no texture specified
- DWORD m_dwNumMaterials; // number of materials
-
- CD3DFont* m_pFont;
- CD3DArcBall m_ArcBall; // mouse rotation utility
- D3DXVECTOR3 m_vObjectCenter; // Center of bounding sphere of object
- FLOAT m_fObjectRadius; // Radius of bounding sphere of object
-
- LPD3DXBUFFER m_pbufMaterials; // contains both the materials data and the filename strings
- LPD3DXBUFFER m_pbufAdjacency; // Contains the adjacency info loaded with the mesh
-
- BOOL m_bUseHWNPatches;
-
- HRESULT GenerateEnhancedMesh(UINT cNewNumSegs);
-
- protected:
- HRESULT OneTimeSceneInit();
- HRESULT InitDeviceObjects();
- HRESULT RestoreDeviceObjects();
- HRESULT InvalidateDeviceObjects();
- HRESULT DeleteDeviceObjects();
- HRESULT Render();
- HRESULT FrameMove();
- HRESULT FinalCleanup();
- LRESULT MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
-
- public:
- CMyD3DApplication();
- };
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: WinMain()
- // Desc: Entry point to the program. Initializes everything, and goes into a
- // message-processing loop. Idle time is used to render the scene.
- //-----------------------------------------------------------------------------
- INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT )
- {
- CMyD3DApplication d3dApp;
-
- if( FAILED( d3dApp.Create( hInst ) ) )
- return 0;
- return d3dApp.Run();
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: CMyD3DApplication()
- // Desc: Application constructor. Sets attributes for the app.
- //-----------------------------------------------------------------------------
- CMyD3DApplication::CMyD3DApplication()
- {
- m_strWindowTitle = _T("Enhanced Mesh - N-Patches");
- m_bUseDepthBuffer = TRUE;
- m_bShowCursorWhenFullscreen = TRUE;
-
- m_pMeshSysMem = NULL;
- m_pMeshEnhanced = NULL;
- m_pMaterials = NULL;
- m_ppTextures = NULL;
- m_dwNumMaterials = NULL;
- m_pbufMaterials = NULL;
- m_pbufAdjacency = NULL;
- m_dwNumSegs = 2;
- m_bUseHWNPatches = FALSE;
-
- m_pFont = new CD3DFont( _T("Arial"), 12, D3DFONT_BOLD );
-
- _tcscpy( m_strInitialDir, DXUtil_GetDXSDKMediaPath() );
- _tcscpy( m_strMeshFilename, _T("tiger.x") );
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: OneTimeSceneInit()
- // Desc: Called during initial app startup, this function performs all the
- // permanent initialization.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::OneTimeSceneInit()
- {
- // Set cursor to indicate that user can move the object with the mouse
- #ifdef _WIN64
- SetClassLongPtr( m_hWnd, GCLP_HCURSOR, (LONG_PTR)LoadCursor( NULL, IDC_SIZEALL ) );
- #else
- SetClassLong( m_hWnd, GCL_HCURSOR, (LONG)LoadCursor( NULL, IDC_SIZEALL ) );
- #endif
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: FrameMove()
- // Desc: Called once per frame, the call is the entry point for animating
- // the scene.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::FrameMove()
- {
- // Setup world matrix
- D3DXMATRIX matWorld;
- D3DXMATRIX matRotationInverse;
- D3DXMatrixTranslation( &matWorld, -m_vObjectCenter.x,
- -m_vObjectCenter.y,
- -m_vObjectCenter.z );
- D3DXMatrixInverse( &matRotationInverse, NULL, m_ArcBall.GetRotationMatrix() );
- D3DXMatrixMultiply( &matWorld, &matWorld, &matRotationInverse );
- D3DXMatrixMultiply( &matWorld, &matWorld, m_ArcBall.GetTranslationMatrix() );
- m_pd3dDevice->SetTransform( D3DTS_WORLD, &matWorld );
-
- D3DXMATRIX matView;
- D3DXMatrixLookAtLH( &matView, &D3DXVECTOR3( 0, 0, -2*m_fObjectRadius ),
- &D3DXVECTOR3( 0, 0, 0 ),
- &D3DXVECTOR3( 0, 1, 0 ) );
- m_pd3dDevice->SetTransform( D3DTS_VIEW, &matView );
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: Render()
- // Desc: Called once per frame, the call is the entry point for 3d
- // rendering. This function sets up render states, clears the
- // viewport, and renders the scene.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::Render()
- {
- // Clear the backbuffer
- m_pd3dDevice->Clear( 0L, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER,
- 0x000000ff, 1.0f, 0L );
-
- // Begin the scene
- if( SUCCEEDED( m_pd3dDevice->BeginScene() ) )
- {
- if (m_bUseHWNPatches)
- {
- float fNumSegs;
-
- fNumSegs = (float)m_dwNumSegs;
- m_pd3dDevice->SetRenderState(D3DRS_PATCHSEGMENTS, *((DWORD*)&fNumSegs));
- }
-
- // set and draw each of the materials in the mesh
- for( UINT i = 0; i < m_dwNumMaterials; i++ )
- {
- m_pd3dDevice->SetMaterial( &m_pMaterials[i].MatD3D );
- m_pd3dDevice->SetTexture( 0, m_ppTextures[i] );
-
- m_pMeshEnhanced->DrawSubset( i );
- }
-
- if (m_bUseHWNPatches)
- {
- m_pd3dDevice->SetRenderState(D3DRS_PATCHSEGMENTS, 0);
- }
-
- // Output stats
- {
- // Output statistics
- m_pFont->DrawText( 2, 0, D3DCOLOR_ARGB(255,255,255,0), m_strFrameStats );
- m_pFont->DrawText( 2, 20, D3DCOLOR_ARGB(255,255,255,0), m_strDeviceStats );
-
- TCHAR buffer1[80], buffer2[80];
- _stprintf( buffer1, "NumSegs:" );
- _stprintf( buffer2, "%d ", m_dwNumSegs );
- m_pFont->DrawText( 2, 40, 0xffffff00, buffer1 );
- m_pFont->DrawText( 150, 40, 0xffffffff, buffer2 );
- _stprintf( buffer1, "NumFaces:" );
- _stprintf( buffer2, "%d ", m_pMeshEnhanced->GetNumFaces() );
- m_pFont->DrawText( 2, 60, 0xffffff00, buffer1 );
- m_pFont->DrawText( 150, 60, 0xffffffff, buffer2 );
- _stprintf( buffer1, "NumVertices:" );
- _stprintf( buffer2, "%d ", m_pMeshEnhanced->GetNumVertices() );
- m_pFont->DrawText( 2, 80, 0xffffff00, buffer1 );
- m_pFont->DrawText( 150, 80, 0xffffffff, buffer2 );
- }
-
- // End the scene.
- m_pd3dDevice->EndScene();
- }
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: InitDeviceObjects()
- // Desc: This creates all device-dependent managed objects, such as managed
- // textures and managed vertex buffers.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::InitDeviceObjects()
- {
- LPDIRECT3DVERTEXBUFFER8 pVB = NULL;
- BYTE* pVertices = NULL;
- LPD3DXMESH pTempMesh;
- TCHAR strMeshPath[512];
- HRESULT hr;
-
- // Initialize the font's internal textures
- m_pFont->InitDeviceObjects( m_pd3dDevice );
-
- // Load the mesh from the specified file
- DXUtil_FindMediaFile( strMeshPath, m_strMeshFilename );
-
- hr = D3DXLoadMeshFromX( strMeshPath, D3DXMESH_SYSTEMMEM, m_pd3dDevice,
- &m_pbufAdjacency, &m_pbufMaterials, &m_dwNumMaterials,
- &m_pMeshSysMem );
- if( FAILED(hr) )
- return D3DAPPERR_MEDIANOTFOUND;
-
- // Lock the vertex buffer, to generate a simple bounding sphere
- hr = m_pMeshSysMem->GetVertexBuffer( &pVB );
- if( FAILED(hr) )
- return hr;
-
- hr = pVB->Lock( 0, 0, &pVertices, 0 );
- if( FAILED(hr) )
- {
- SAFE_RELEASE( pVB );
- return hr;
- }
-
- hr = D3DXComputeBoundingSphere( pVertices, m_pMeshSysMem->GetNumVertices(),
- m_pMeshSysMem->GetFVF(), &m_vObjectCenter,
- &m_fObjectRadius );
- if( FAILED(hr) )
- {
- pVB->Unlock();
- SAFE_RELEASE( pVB );
- return hr;
- }
-
- if( 0 == m_dwNumMaterials )
- {
- pVB->Unlock();
- SAFE_RELEASE( pVB );
- return E_INVALIDARG;
- }
-
- // Get the array of materials out of the returned buffer, allocate a
- // texture array, and load the textures
- m_pMaterials = (D3DXMATERIAL*)m_pbufMaterials->GetBufferPointer();
- m_ppTextures = new LPDIRECT3DTEXTURE8[m_dwNumMaterials];
-
- for( UINT i=0; i<m_dwNumMaterials; i++ )
- {
- TCHAR strTexturePath[512] = _T("");
- DXUtil_FindMediaFile( strTexturePath, m_pMaterials[i].pTextureFilename );
- if( FAILED( D3DXCreateTextureFromFile( m_pd3dDevice, strTexturePath,
- &m_ppTextures[i] ) ) )
- m_ppTextures[i] = NULL;
- }
-
- pVB->Unlock();
- SAFE_RELEASE( pVB );
-
- // Make sure there are normals, which are required for the tesselation
- // enhancement
- if( !(m_pMeshSysMem->GetFVF() & D3DFVF_NORMAL) )
- {
- hr = m_pMeshSysMem->CloneMeshFVF( m_pMeshSysMem->GetOptions(),
- m_pMeshSysMem->GetFVF() | D3DFVF_NORMAL,
- m_pd3dDevice, &pTempMesh );
- if( FAILED(hr) )
- return hr;
-
- D3DXComputeNormals( pTempMesh );
-
- SAFE_RELEASE( m_pMeshSysMem );
- m_pMeshSysMem = pTempMesh;
- }
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: GenerateEnhancedMesh()
- // Desc:
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::GenerateEnhancedMesh( UINT dwNewNumSegs )
- {
- LPD3DXMESH pMeshEnhancedSysMem = NULL;
- LPD3DXMESH pMeshTemp;
- HRESULT hr;
-
- // if using hw, just copy the mesh
- if (m_bUseHWNPatches)
- {
- hr = m_pMeshSysMem->CloneMeshFVF( D3DXMESH_WRITEONLY | D3DXMESH_NPATCHES,
- m_pMeshSysMem->GetFVF(), m_pd3dDevice, &pMeshTemp );
- if( FAILED(hr) )
- return hr;
- }
- else // tesselate the mesh in sw
- {
-
- // Create an enhanced version of the mesh, will be in sysmem since source is
- hr = D3DXTesselateMesh( m_pMeshSysMem, (DWORD*)m_pbufAdjacency->GetBufferPointer(),
- (float)dwNewNumSegs, FALSE, &pMeshEnhancedSysMem );
- if( FAILED(hr) )
- return hr;
-
- // Make a vid mem version of the mesh
- hr = pMeshEnhancedSysMem->CloneMeshFVF( D3DXMESH_WRITEONLY, m_pMeshSysMem->GetFVF(),
- m_pd3dDevice, &pMeshTemp );
- if( FAILED(hr) )
- {
- SAFE_RELEASE( pMeshEnhancedSysMem );
- return hr;
- }
-
- // Latch in the enhanced mesh
- SAFE_RELEASE( pMeshEnhancedSysMem );
- }
-
- SAFE_RELEASE( m_pMeshEnhanced );
- m_pMeshEnhanced = pMeshTemp;
- m_dwNumSegs = dwNewNumSegs;
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: RestoreDeviceObjects()
- // Desc: Restore device-memory objects and state after a device is created or
- // resized.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::RestoreDeviceObjects()
- {
- HRESULT hr;
-
- m_bUseHWNPatches = (m_d3dCaps.DevCaps & D3DDEVCAPS_NPATCHES);
-
- hr = GenerateEnhancedMesh( m_dwNumSegs );
- if( FAILED(hr) )
- return hr;
-
- // Setup render state
- m_pd3dDevice->SetRenderState( D3DRS_LIGHTING, TRUE );
- m_pd3dDevice->SetRenderState( D3DRS_DITHERENABLE, TRUE );
- m_pd3dDevice->SetRenderState( D3DRS_ZENABLE, TRUE );
- m_pd3dDevice->SetRenderState( D3DRS_AMBIENT, 0x33333333 );
- m_pd3dDevice->SetTextureStageState( 0, D3DTSS_MAGFILTER, D3DTEXF_LINEAR );
- m_pd3dDevice->SetTextureStageState( 0, D3DTSS_MINFILTER, D3DTEXF_LINEAR );
-
- // Setup the light
- D3DLIGHT8 light;
- D3DUtil_InitLight( light, D3DLIGHT_DIRECTIONAL, 0.0f,-1.0f, 1.0f );
- m_pd3dDevice->SetLight(0, &light );
- m_pd3dDevice->LightEnable(0, TRUE );
-
- // Setup the arcball parameters
- m_ArcBall.SetWindow( m_d3dsdBackBuffer.Width, m_d3dsdBackBuffer.Height, 0.85f );
-
- // Setup the projection matrix
- D3DXMATRIX matProj;
- FLOAT fAspect = (FLOAT)m_d3dsdBackBuffer.Width / (FLOAT)m_d3dsdBackBuffer.Height;
- D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, fAspect,
- m_fObjectRadius/64.0f, m_fObjectRadius*200.0f );
- m_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );
-
- // Restore the font
- m_pFont->RestoreDeviceObjects();
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: InvalidateDeviceObjects()
- // Desc: Called when the device-dependent objects are about to be lost.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::InvalidateDeviceObjects()
- {
- m_pFont->InvalidateDeviceObjects();
-
- SAFE_RELEASE( m_pMeshEnhanced );
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: DeleteDeviceObjects()
- // Desc: Called when the app is exiting, or the device is being changed,
- // this function deletes any device dependent objects.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::DeleteDeviceObjects()
- {
- m_pFont->DeleteDeviceObjects();
-
- for( UINT i = 0; i < m_dwNumMaterials; i++ )
- SAFE_RELEASE( m_ppTextures[i] );
- SAFE_DELETE_ARRAY( m_ppTextures );
- SAFE_RELEASE( m_pMeshSysMem );
- SAFE_RELEASE( m_pbufMaterials );
- m_dwNumMaterials = 0L;
-
- return S_OK;
- }
-
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: FinalCleanup()
- // Desc: Called during initial app startup, this function performs all the
- // permanent initialization.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::FinalCleanup()
- {
- SAFE_DELETE( m_pFont );
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: MsgProc()
- // Desc: Message proc function to handle key and menu input
- //-----------------------------------------------------------------------------
- LRESULT CMyD3DApplication::MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam,
- LPARAM lParam )
- {
- // Pass mouse messages to the ArcBall so it can build internal matrices
- m_ArcBall.HandleMouseMessages( hWnd, uMsg, wParam, lParam );
-
- // Trap context menu
- if( WM_CONTEXTMENU == uMsg )
- return 0;
-
- // Handle key presses
- if( WM_KEYDOWN == uMsg )
- {
- if( VK_UP == (int)wParam )
- GenerateEnhancedMesh( m_dwNumSegs + 1 );
-
- if( VK_DOWN == (int)wParam )
- GenerateEnhancedMesh( max( 1, m_dwNumSegs - 1 ) );
-
- if( 'W' == (int)wParam )
- m_pd3dDevice->SetRenderState( D3DRS_FILLMODE, D3DFILL_WIREFRAME );
-
- if( 'S' == (int)wParam )
- m_pd3dDevice->SetRenderState( D3DRS_FILLMODE, D3DFILL_SOLID );
- }
- else if( uMsg == WM_COMMAND )
- {
- // Handle the open file command
- if( LOWORD(wParam) == IDM_OPENFILE )
- {
- TCHAR g_strFilename[512] = _T("");
-
- // Display the OpenFileName dialog. Then, try to load the specified file
- OPENFILENAME ofn = { sizeof(OPENFILENAME), NULL, NULL,
- _T(".X Files (.x)\0*.x\0\0"),
- NULL, 0, 1, m_strMeshFilename, 512, g_strFilename, 512,
- m_strInitialDir, _T("Open Mesh File"),
- OFN_FILEMUSTEXIST, 0, 1, NULL, 0, NULL, NULL };
-
- if( TRUE == GetOpenFileName( &ofn ) )
- {
- _tcscpy( m_strInitialDir, m_strMeshFilename );
- TCHAR* pLastSlash = _tcsrchr( m_strInitialDir, _T('\\') );
- if( pLastSlash )
- *pLastSlash = 0;
- SetCurrentDirectory( m_strInitialDir );
-
- // Destroy and recreate everything
- InvalidateDeviceObjects();
- DeleteDeviceObjects();
- InitDeviceObjects();
- RestoreDeviceObjects();
- }
- }
- }
-
-
- // Pass remaining messages to default handler
- return CD3DApplication::MsgProc( hWnd, uMsg, wParam, lParam );
- }
-
-
-
-