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- //-----------------------------------------------------------------------------
- // File: OptimizedMesh.cpp
- //
- // Desc: Sample of optimizing meshes in D3D
- //
- // Copyright (c) 1998-2000 Microsoft Corporation. All rights reserved.
- //-----------------------------------------------------------------------------
- #define STRICT
- #include <tchar.h>
- #include <stdio.h>
- #include <windows.h>
- #include <commdlg.h>
- #include <d3dx8.h>
- #include "D3DApp.h"
- #include "D3DFont.h"
- #include "D3DUtil.h"
- #include "DXUtil.h"
- #include "resource.h"
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: class CMyD3DApplication
- // Desc: Main class to run this application. Most functionality is inherited
- // from the CD3DApplication base class.
- //-----------------------------------------------------------------------------
- class CMyD3DApplication : public CD3DApplication
- {
- TCHAR m_strMeshFilename[512];
- TCHAR m_strInitialDir[512];
-
- LPD3DXMESH m_pMesh; // Local version of mesh, rebuilt on resize
- LPD3DXMESH m_pMeshOptimized; // Optimized vid mem mesh, rebuilt on resize
-
- DWORD m_dwNumMaterials; // Number of materials
- LPDIRECT3DTEXTURE8* m_pMeshTextures;
- D3DMATERIAL8* m_pMeshMaterials;
-
- BOOL m_bShowOptimizedMesh; // Which mesh is currently being drawn
- LPD3DXBUFFER m_pAdjacencyBuffer; // Contains the adjaceny info loaded with the mesh
-
- CD3DFont* m_pFont; // Font for outputting frame stats
-
- CD3DArcBall m_ArcBall; // Mouse rotation utility
- D3DXVECTOR3 m_vObjectCenter; // Center of bounding sphere of object
- FLOAT m_fObjectRadius; // Radius of bounding sphere of object
-
- D3DXMATRIX m_matWorld;
- DWORD m_cObjectsPerSide; // sqrt of the number of objects to draw
-
- public:
- 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 );
- 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: Constructor
- //-----------------------------------------------------------------------------
- CMyD3DApplication::CMyD3DApplication()
- {
- // Override base class members
- m_strWindowTitle = _T("OptimizedMesh: Optimizing Meshes in D3D");
- m_bUseDepthBuffer = TRUE;
- m_bShowCursorWhenFullscreen = TRUE;
-
- // Initialize member variables
- m_pMesh = NULL;
- m_pMeshOptimized = NULL;
- m_bShowOptimizedMesh = TRUE;
- m_pAdjacencyBuffer = NULL;
-
- m_dwNumMaterials = 0L;
- m_pMeshMaterials = NULL;
-
- m_pFont = new CD3DFont( _T("Arial"), 12, D3DFONT_BOLD );
-
- _tcscpy( m_strInitialDir, DXUtil_GetDXSDKMediaPath() );
- _tcscpy( m_strMeshFilename, _T("knot.x") );
-
- m_cObjectsPerSide = 1;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // 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 viewing postion from ArcBall
- D3DXMATRIX matRotationInverse;
- D3DXMATRIX matTemp;
- D3DXMatrixTranslation( &m_matWorld, -m_vObjectCenter.x,
- -m_vObjectCenter.y,
- -m_vObjectCenter.z );
- D3DXMatrixInverse( &matRotationInverse, NULL, m_ArcBall.GetRotationMatrix() );
- D3DXMatrixMultiply( &m_matWorld, &m_matWorld, &matRotationInverse );
- D3DXMatrixMultiply( &m_matWorld, &m_matWorld, m_ArcBall.GetTranslationMatrix() );
-
- D3DXMatrixTranslation( &matTemp, -m_fObjectRadius * (m_cObjectsPerSide-1),//* 0.5f,
- -m_fObjectRadius * (m_cObjectsPerSide-1),//* 0.5f,
- 0 );
- D3DXMatrixMultiply( &m_matWorld, &m_matWorld, &matTemp );
-
- D3DXMATRIX matView;
- D3DXMatrixLookAtLH( &matView, &D3DXVECTOR3( 0, 0,-3.7f*m_fObjectRadius * m_cObjectsPerSide),
- &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()
- {
- DWORD xOffset;
- DWORD yOffset;
- D3DXMATRIX matWorld;
- D3DXMATRIX matTemp;
- DWORD cTriangles;
- FLOAT fTrisPerSec;
- TCHAR strInfo[120];
-
- // Clear the scene
- m_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER,
- 0x000000ff, 1.0f, 0x00000000 );
-
- // Draw scene
- if( SUCCEEDED( m_pd3dDevice->BeginScene() ) )
- {
- for (xOffset = 0; xOffset < m_cObjectsPerSide; xOffset++)
- {
- for (yOffset = 0; yOffset < m_cObjectsPerSide; yOffset++)
- {
- D3DXMatrixTranslation( &matTemp, m_fObjectRadius * xOffset * 2,
- m_fObjectRadius * yOffset * 2,
- 0 );
- D3DXMatrixMultiply( &matWorld, &m_matWorld, &matTemp );
- m_pd3dDevice->SetTransform( D3DTS_WORLD, &matWorld );
-
-
- // Set and draw each of the materials in the mesh
- for( DWORD i=0; i<m_dwNumMaterials; i++ )
- {
- m_pd3dDevice->SetMaterial( &m_pMeshMaterials[i] );
- m_pd3dDevice->SetTexture( 0, m_pMeshTextures[i] );
-
- // Draw either the optimized or unoptimized mesh
- if( m_bShowOptimizedMesh )
- m_pMeshOptimized->DrawSubset( i );
- else
- m_pMesh->DrawSubset( i );
- }
- }
- }
-
- // Calculate and show triangles per sec, a reasonable throughput number
- cTriangles = m_pMesh->GetNumFaces() * m_cObjectsPerSide * m_cObjectsPerSide;
- fTrisPerSec = m_fFPS * cTriangles;
-
- // Output statistics
- wsprintf( strInfo, _T("%s, %ld tris per sec, %ld triangles"),
- m_bShowOptimizedMesh ? _T("Optimized") : _T("Non-optimized"),
- (DWORD)fTrisPerSec,
- cTriangles);
-
- 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 );
- m_pFont->DrawText( 2, 40, D3DCOLOR_ARGB(255,255,255,0), strInfo);
-
-
- m_pd3dDevice->EndScene();
- }
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: InitDeviceObjects()
- // Desc: Initialize scene objects.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::InitDeviceObjects()
- {
- LPDIRECT3DVERTEXBUFFER8 pMeshVB = NULL;
- LPD3DXBUFFER pD3DXMtrlBuffer = NULL;
- BYTE* pVertices;
- TCHAR strMesh[512];
- HRESULT hr = S_OK;
- BOOL bNormalsInFile;
- LPD3DXMESH pMeshTemp;
- LPD3DXMESH pMeshSysMem = NULL;
- DWORD *rgdwAdjacencyTemp = NULL;
- DWORD i;
- D3DXMATERIAL* d3dxMaterials;
- DWORD dw32Bit;
-
- // Get a path to the media file
- DXUtil_FindMediaFile( strMesh, m_strMeshFilename );
-
- // Load the mesh from the specified file
- hr = D3DXLoadMeshFromX( strMesh, D3DXMESH_SYSTEMMEM, m_pd3dDevice,
- &m_pAdjacencyBuffer, &pD3DXMtrlBuffer,
- &m_dwNumMaterials, &pMeshSysMem );
- if( FAILED(hr) )
- goto End;
-
- // remember if the mesh is 32 or 16 bit, to be added in on the clones
- dw32Bit = pMeshSysMem->GetOptions() & D3DXMESH_32BIT;
-
- // Get the array of materials out of the returned buffer, and allocate a texture array
- d3dxMaterials = (D3DXMATERIAL*)pD3DXMtrlBuffer->GetBufferPointer();
- m_pMeshMaterials = new D3DMATERIAL8[m_dwNumMaterials];
- m_pMeshTextures = new LPDIRECT3DTEXTURE8[m_dwNumMaterials];
-
- for( i=0; i<m_dwNumMaterials; i++ )
- {
- m_pMeshMaterials[i] = d3dxMaterials[i].MatD3D;
- m_pMeshMaterials[i].Ambient = m_pMeshMaterials[i].Diffuse;
- m_pMeshTextures[i] = NULL;
-
- // Get a path to the texture
- TCHAR strPath[512];
- DXUtil_FindMediaFile( strPath, d3dxMaterials[i].pTextureFilename );
-
- // Load the texture
- D3DXCreateTextureFromFile( m_pd3dDevice, strPath, &m_pMeshTextures[i] );
- }
-
- // Done with the material buffer
- SAFE_RELEASE( pD3DXMtrlBuffer );
-
- // Lock the vertex buffer, to generate a simple bounding sphere
- hr = pMeshSysMem->GetVertexBuffer( &pMeshVB );
- if( SUCCEEDED(hr) )
- {
- hr = pMeshVB->Lock( 0, 0, &pVertices, D3DLOCK_NOSYSLOCK );
- if( SUCCEEDED(hr) )
- {
- hr = D3DXComputeBoundingSphere( pVertices, pMeshSysMem->GetNumVertices(),
- pMeshSysMem->GetFVF(),
- &m_vObjectCenter, &m_fObjectRadius );
- pMeshVB->Unlock();
- }
- pMeshVB->Release();
- }
- if( FAILED(hr) )
- goto End;
-
- // Initialize the font
- m_pFont->InitDeviceObjects( m_pd3dDevice );
-
- // remember if there were normals in the file, before possible clone operation
- bNormalsInFile = pMeshSysMem->GetFVF() & D3DFVF_NORMAL;
-
- // force 32 byte vertices
- if (pMeshSysMem->GetFVF() != (D3DFVF_XYZ|D3DFVF_NORMAL|D3DFVF_TEX1))
- {
- hr = pMeshSysMem->CloneMeshFVF( pMeshSysMem->GetOptions(), D3DFVF_XYZ|D3DFVF_NORMAL|D3DFVF_TEX1,
- m_pd3dDevice, &pMeshTemp );
- if( FAILED(hr) )
- goto End;
-
- pMeshSysMem->Release();
- pMeshSysMem = pMeshTemp;
- }
-
-
- // Compute normals for the mesh, if not present
- if (!bNormalsInFile)
- {
- D3DXComputeNormals( pMeshSysMem );
- }
-
- // allocate a second adjacency buffer to store post attribute sorted adjacency
- rgdwAdjacencyTemp = new DWORD[pMeshSysMem->GetNumFaces() * 3];
- if (rgdwAdjacencyTemp == NULL)
- {
- hr = E_OUTOFMEMORY;
- goto End;
- }
-
- // attribute sort - the un-optimized mesh option
- // remember the adjacency for the vertex cache optimization
- hr = pMeshSysMem->OptimizeInplace( D3DXMESHOPT_COMPACT|D3DXMESHOPT_ATTRSORT,
- (DWORD*)m_pAdjacencyBuffer->GetBufferPointer(),
- rgdwAdjacencyTemp, NULL, NULL);
- if( FAILED(hr) )
- goto End;
-
- // snapshot the attribute sorted mesh, shown as the un-optimized version
- hr = pMeshSysMem->CloneMeshFVF( dw32Bit|D3DXMESH_MANAGED|D3DXMESH_VB_WRITEONLY, pMeshSysMem->GetFVF(),
- m_pd3dDevice, &m_pMesh );
- if( FAILED(hr) )
- goto End;
-
- // actually do the vertex cache optimization
- hr = pMeshSysMem->OptimizeInplace( D3DXMESHOPT_COMPACT|D3DXMESHOPT_ATTRSORT|D3DXMESHOPT_VERTEXCACHE,
- rgdwAdjacencyTemp,
- NULL, NULL, NULL);
- if( FAILED(hr) )
- goto End;
-
- // snapshot as the optimized mesh
- hr = pMeshSysMem->CloneMeshFVF( dw32Bit|D3DXMESH_MANAGED|D3DXMESH_VB_WRITEONLY, pMeshSysMem->GetFVF(),
- m_pd3dDevice, &m_pMeshOptimized );
- if( FAILED(hr) )
- goto End;
-
- // check current display setting
- CheckMenuItem( GetMenu(m_hWnd), ID_OPTIONS_DISPLAY1 + (m_cObjectsPerSide-1), MF_CHECKED );
- CheckMenuItem( GetMenu(m_hWnd), IDM_SHOWOPTIMIZEDMESH, m_bShowOptimizedMesh ? MF_CHECKED : MF_UNCHECKED);
-
- End:
- SAFE_DELETE_ARRAY( rgdwAdjacencyTemp );
- SAFE_RELEASE( pMeshSysMem );
-
- return hr;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: RestoreDeviceObjects()
- // Desc: Initialize scene objects.
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::RestoreDeviceObjects()
- {
- m_pFont->RestoreDeviceObjects();
-
- // Setup render state
- m_pd3dDevice->SetRenderState( D3DRS_LIGHTING, TRUE );
- m_pd3dDevice->SetRenderState( D3DRS_DITHERENABLE, TRUE );
- m_pd3dDevice->SetRenderState( D3DRS_ZENABLE, TRUE );
- m_pd3dDevice->SetTextureStageState( 0, D3DTSS_MAGFILTER, D3DTEXF_LINEAR );
- m_pd3dDevice->SetTextureStageState( 0, D3DTSS_MINFILTER, D3DTEXF_LINEAR );
-
- // Setup the light
- D3DLIGHT8 light;
- light.Type = D3DLIGHT_DIRECTIONAL;
- light.Diffuse.r = light.Diffuse.g = light.Diffuse.b = 1.0f;
- light.Specular.r = light.Specular.g = light.Specular.b = 0.0f;
- light.Ambient.r = light.Ambient.g = light.Ambient.b = 0.3f;
- light.Position = D3DXVECTOR3( 0.0f, 0.0f, 0.0f );
- D3DXVec3Normalize( (D3DXVECTOR3*)&light.Direction, &D3DXVECTOR3( 0.3f, -1.0f, 1.0f ) );
- light.Attenuation0 = light.Attenuation1 = light.Attenuation2 = 0.0f;
- light.Range = sqrtf(FLT_MAX);
- m_pd3dDevice->SetLight(0, &light );
- m_pd3dDevice->LightEnable(0, TRUE );
-
- m_ArcBall.SetWindow( m_d3dsdBackBuffer.Width, m_d3dsdBackBuffer.Height, 0.85f );
- m_ArcBall.SetRadius( m_fObjectRadius );
-
- FLOAT fAspect = m_d3dsdBackBuffer.Width / (FLOAT)m_d3dsdBackBuffer.Height;
-
- D3DXMATRIX matProj;
- D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, fAspect, m_fObjectRadius/64.0f,
- m_fObjectRadius*200.0f);
- m_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );
-
- return S_OK;
- }
-
-
-
-
- //-----------------------------------------------------------------------------
- // Name: InvalidateDeviceObjects()
- // Desc:
- //-----------------------------------------------------------------------------
- HRESULT CMyD3DApplication::InvalidateDeviceObjects()
- {
- m_pFont->InvalidateDeviceObjects();
-
-
- 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_pMeshTextures[i] );
- SAFE_DELETE_ARRAY( m_pMeshTextures );
- SAFE_DELETE_ARRAY( m_pMeshMaterials );
- SAFE_RELEASE( m_pAdjacencyBuffer );
- SAFE_RELEASE( m_pMesh );
- SAFE_RELEASE( m_pMeshOptimized );
-
- 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 the context menu
- if( WM_CONTEXTMENU==uMsg )
- return 0;
-
- if( uMsg == WM_COMMAND )
- {
- // Toggle mesh optimization
- if( LOWORD(wParam) == IDM_SHOWOPTIMIZEDMESH )
- {
- m_bShowOptimizedMesh = !m_bShowOptimizedMesh;
-
- if( m_bShowOptimizedMesh )
- CheckMenuItem( GetMenu(hWnd), IDM_SHOWOPTIMIZEDMESH, MF_CHECKED );
- else
- CheckMenuItem( GetMenu(hWnd), IDM_SHOWOPTIMIZEDMESH, MF_UNCHECKED );
- }
-
-
- // Handle the open file command
- else 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();
- }
- }
-
- else if ((LOWORD(wParam) >= ID_OPTIONS_DISPLAY1) && (LOWORD(wParam) <= ID_OPTIONS_DISPLAY36))
- {
- // uncheck old item
- CheckMenuItem( GetMenu(hWnd), ID_OPTIONS_DISPLAY1 + (m_cObjectsPerSide-1), MF_UNCHECKED );
-
- // calc new item
- m_cObjectsPerSide = LOWORD(wParam) - ID_OPTIONS_DISPLAY1 + 1;
-
- // check new item
- CheckMenuItem( GetMenu(hWnd), ID_OPTIONS_DISPLAY1 + (m_cObjectsPerSide-1), MF_CHECKED );
- }
- }
-
- return CD3DApplication::MsgProc( hWnd, uMsg, wParam, lParam );
- }
-
-
-
-