📄 meshfromobj.cpp
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//=============================================================================
// Desc: 主程序源文件
//=============================================================================
#include "dxstdafx.h"
#pragma warning(disable: 4995)
#include "resource.h"
#include "meshloader.h"
#pragma warning(default: 4995)
//-----------------------------------------------------------------------------
// 全局变量
//-----------------------------------------------------------------------------
ID3DXFont* g_pFont = NULL; //ID3DXFont字体对象
ID3DXSprite* g_pTextSprite = NULL; //ID3DXSprite文本精灵对象
bool g_bShowHelp = true; //标识是否显示简单说明文本
CDXUTDialogResourceManager g_DialogResourceManager; //对话框资源管理器
CD3DSettingsDlg g_SettingsDlg; //Direct3D设备设置对话框
CDXUTDialog g_HUD; //对话框
CDXUTDialog g_SampleUI; //对话框
CModelViewerCamera g_Camera; //摄影机对象
CMeshLoader g_MeshLoader; //
WCHAR g_strFileSaveMessage[MAX_PATH] = {0};
//-----------------------------------------------------------------------------
// 控件ID
//-----------------------------------------------------------------------------
#define IDC_STATIC -1
#define IDC_TOGGLEFULLSCREEN 1
#define IDC_TOGGLEREF 3
#define IDC_CHANGEDEVICE 4
#define IDC_SUBSET 5
#define IDC_SAVETOX 6
//-----------------------------------------------------------------------------
// Desc: 函数声明
//-----------------------------------------------------------------------------
bool CALLBACK IsDeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, D3DFORMAT BackBufferFormat, bool bWindowed, void* pUserContext );
bool CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings, const D3DCAPS9* pCaps, void* pUserContext );
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9* pd3dDevice, const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext );
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9* pd3dDevice, const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext );
void CALLBACK OnFrameMove( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext );
void CALLBACK OnFrameRender( IDirect3DDevice9* pd3dDevice, double fTime, float fElapsedTime, void* pUserContext );
LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, bool* pbNoFurtherProcessing, void* pUserContext );
void CALLBACK KeyboardProc( UINT nChar, bool bKeyDown, bool bAltDown, void* pUserContext );
void CALLBACK OnGUIEvent( UINT nEvent, int nControlID, CDXUTControl* pControl, void* pUserContext );
void CALLBACK OnLostDevice( void* pUserContext );
void CALLBACK OnDestroyDevice( void* pUserContext );
void InitApp();
void RenderText();
void RenderSubset( UINT iSubset, IDirect3DDevice9* pd3dDevice);
void SaveMeshToXFile();
//-----------------------------------------------------------------------------
// Desc: 入口函数
//-----------------------------------------------------------------------------
INT WINAPI WinMain( HINSTANCE, HINSTANCE, LPSTR, int )
{
//为Debug配置启用运行时内存检查功能
#if defined(DEBUG) | defined(_DEBUG)
_CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
#endif
//设置回调函数
DXUTSetCallbackDeviceCreated( OnCreateDevice );
DXUTSetCallbackDeviceReset( OnResetDevice );
DXUTSetCallbackDeviceLost( OnLostDevice );
DXUTSetCallbackDeviceDestroyed( OnDestroyDevice );
DXUTSetCallbackMsgProc( MsgProc );
DXUTSetCallbackKeyboard( KeyboardProc );
DXUTSetCallbackFrameRender( OnFrameRender );
DXUTSetCallbackFrameMove( OnFrameMove );
//全屏幕时显示鼠标
DXUTSetCursorSettings( true, true );
//应用程序相关的初始化
InitApp();
//初始化DXUT, 创建窗口, 创建Direct3D设备对象
DXUTInit( true, true, true );
DXUTCreateWindow( L"MeshFromOBJ" );
DXUTCreateDevice( D3DADAPTER_DEFAULT, true, 640, 480,
IsDeviceAcceptable, ModifyDeviceSettings );
//进入消息循环和场景渲染
DXUTMainLoop();
//在此进行应用程序相关的清除工作
return DXUTGetExitCode();
}
//-----------------------------------------------------------------------------
// Desc: 应用程序相关初始化
//-----------------------------------------------------------------------------
void InitApp()
{
//初始化对话框
g_SettingsDlg.Init( &g_DialogResourceManager );
g_HUD.Init( &g_DialogResourceManager );
g_SampleUI.Init( &g_DialogResourceManager );
//为g_HUD对话框设置消息处理函数,添加控件
g_HUD.SetCallback( OnGUIEvent ); int iY = 10;
g_HUD.AddButton( IDC_TOGGLEFULLSCREEN, L"Toggle full screen", 35, iY, 125, 22 );
g_HUD.AddButton( IDC_TOGGLEREF, L"Toggle REF (F3)", 35, iY += 24, 125, 22 );
g_HUD.AddButton( IDC_CHANGEDEVICE, L"Change device (F2)", 35, iY += 24, 125, 22, VK_F2 );
//为g_SampleUI对话框设置消息处理函数,添加控件
g_SampleUI.SetCallback( OnGUIEvent ); iY = 10;
g_SampleUI.SetFont( 1, L"Arial", 14, FW_BOLD );
CDXUTElement* pElement = g_SampleUI.GetDefaultElement( DXUT_CONTROL_STATIC, 0 );
if( pElement )
{
pElement->iFont = 1;
pElement->dwTextFormat = DT_LEFT | DT_BOTTOM;
}
g_SampleUI.AddStatic( IDC_STATIC, L"(S)ubset", 20, 0, 105, 25 );
g_SampleUI.AddComboBox( IDC_SUBSET, 20, 25, 140, 24, 'S' );
g_SampleUI.AddButton(IDC_SAVETOX, L"Save Mesh To X file", 20, 50, 140, 24, 'X');
}
//-----------------------------------------------------------------------------
// Desc: 设备能力检查
//-----------------------------------------------------------------------------
bool CALLBACK IsDeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat,
D3DFORMAT BackBufferFormat, bool bWindowed,
void* pUserContext )
{
//检查后台缓冲区格式是否支持Alpha混合等操作(post pixel blending operations)
IDirect3D9* pD3D = DXUTGetD3DObject();
if( FAILED( pD3D->CheckDeviceFormat( pCaps->AdapterOrdinal, pCaps->DeviceType,
AdapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING,
D3DRTYPE_TEXTURE, BackBufferFormat ) ) )
return false;
return true;
}
//-----------------------------------------------------------------------------
// Desc: 修改Direct3D渲染设备设置
//-----------------------------------------------------------------------------
bool CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings,
const D3DCAPS9* pCaps, void* pUserContext )
{
//如果不支持硬件顶点处理则使用软件顶点处理
if( (pCaps->DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT) == 0)
{
pDeviceSettings->BehaviorFlags = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
}
//如果HAL设备支持反走样，则启用反走样
CD3DEnumeration* pEnum = DXUTGetEnumeration();
CD3DEnumDeviceSettingsCombo* pCombo = pEnum->GetDeviceSettingsCombo( pDeviceSettings );
if( pDeviceSettings->DeviceType == D3DDEVTYPE_HAL &&
pCombo->multiSampleTypeList.Contains( D3DMULTISAMPLE_4_SAMPLES ) )
{
pDeviceSettings->pp.MultiSampleType = D3DMULTISAMPLE_4_SAMPLES;
pDeviceSettings->pp.MultiSampleQuality = 0;
}
//如果使用参考设备,则弹出警告对话框
static bool s_bFirstTime = true;
if( s_bFirstTime )
{
s_bFirstTime = false;
if( pDeviceSettings->DeviceType == D3DDEVTYPE_REF )
DXUTDisplaySwitchingToREFWarning();
}
return true;
}
//-----------------------------------------------------------------------------
// Desc: 在此创建管理内存资源对象
//-----------------------------------------------------------------------------
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9* pd3dDevice,
const D3DSURFACE_DESC* pBackBufferSurfaceDesc,
void* pUserContext )
{
HRESULT hr;
V_RETURN( g_DialogResourceManager.OnCreateDevice( pd3dDevice ) );
V_RETURN( g_SettingsDlg.OnCreateDevice( pd3dDevice ) );
//创建字体
V_RETURN( D3DXCreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE,
L"Arial", &g_pFont ) );
//加载并创建网格模型
V_RETURN( g_MeshLoader.Create( pd3dDevice, L"cup.obj" ) );
//添加材质子块
CDXUTComboBox* pComboBox = g_SampleUI.GetComboBox( IDC_SUBSET );
pComboBox->RemoveAllItems();
pComboBox->AddItem( L"All", (void*)(INT_PTR) -1 );
for( UINT i=0; i < g_MeshLoader.GetNumMaterials(); i++ )
{
Material* pMaterial = g_MeshLoader.GetMaterial( i );
pComboBox->AddItem( pMaterial->strName, (void*)(INT_PTR) i );
}
return S_OK;
}
//-----------------------------------------------------------------------------
// Desc: 在此创建默认内存类型资源对象
//-----------------------------------------------------------------------------
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9* pd3dDevice,
const D3DSURFACE_DESC* pBackBufferSurfaceDesc, void* pUserContext )
{
HRESULT hr;
V_RETURN( g_DialogResourceManager.OnResetDevice() );
V_RETURN( g_SettingsDlg.OnResetDevice() );
//设置对框框初始位置和尺寸
g_HUD.SetLocation( pBackBufferSurfaceDesc->Width-170, 0 );
g_HUD.SetSize( 170, 170 );
g_HUD.Refresh();
g_SampleUI.SetLocation( pBackBufferSurfaceDesc->Width-170, pBackBufferSurfaceDesc->Height-350 );
g_SampleUI.SetSize( 170, 300 );
g_SampleUI.Refresh();
//恢复字体
if( g_pFont )
V_RETURN( g_pFont->OnResetDevice() );
//创建ID3DXSprite接口对象
V_RETURN( D3DXCreateSprite( pd3dDevice, &g_pTextSprite ) );
//设置摄影机观察参数
D3DXVECTOR3 vecEye(2.0f, 1.0f, 0.0f);
D3DXVECTOR3 vecAt (0.0f, 0.0f, -0.0f);
g_Camera.SetViewParams( &vecEye, &vecAt );
//设置摄影机投影参数
float fAspectRatio = pBackBufferSurfaceDesc->Width / (FLOAT)pBackBufferSurfaceDesc->Height;
g_Camera.SetProjParams( D3DX_PI/4, fAspectRatio, 0.1f, 1000.0f );
g_Camera.SetWindow( pBackBufferSurfaceDesc->Width, pBackBufferSurfaceDesc->Height );
//设置灯光
D3DXVECTOR3 vecDir;
D3DLIGHT9 light;
ZeroMemory( &light, sizeof(D3DLIGHT9) );
light.Type = D3DLIGHT_DIRECTIONAL;
light.Diffuse.r = 1.0f;
light.Diffuse.g = 1.0f;
light.Diffuse.b = 1.0f;
light.Diffuse.a = 1.0f;
light.Specular.r = 1.0f;
light.Specular.g = 1.0f;
light.Specular.b = 1.0f;
light.Specular.a = 1.0f;
vecDir = D3DXVECTOR3(-1.0f, 0.0f, -1.0f);
D3DXVec3Normalize( (D3DXVECTOR3*)&light.Direction, &vecDir );
light.Range = 1000.0f;
pd3dDevice->SetLight( 0, &light );
pd3dDevice->LightEnable( 0, true );
pd3dDevice->SetRenderState( D3DRS_LIGHTING, TRUE );
//设置环境光
pd3dDevice->SetRenderState( D3DRS_AMBIENT, 0x00808080);
return S_OK;
}
//-----------------------------------------------------------------------------
// Desc: 更新场景
//-----------------------------------------------------------------------------
void CALLBACK OnFrameMove( IDirect3DDevice9* pd3dDevice, double fTime,
float fElapsedTime, void* pUserContext )
{
//根据用户输入, 更新摄影机位置
g_Camera.FrameMove( fElapsedTime );
//设置世界矩阵
D3DXMATRIXA16 mWorld;
mWorld = *g_Camera.GetWorldMatrix();
pd3dDevice->SetTransform( D3DTS_WORLD, &mWorld );
//设置观察矩阵
D3DXMATRIXA16 mView;
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