HLSL顶点渲染

//==============================================================// Desc: 顶点渲染器代码//==============================================================//坐标变换矩阵float4x4 matWorldViewProj;//--------------------------------------------------------------// Desc: 输出结构//--------------------------------------------------------------struct VS_OUTPUT{   float4 Pos   : POSITION;   float4 Color : COLOR;};//--------------------------------------------------------------// Desc: 顶点渲染//--------------------------------------------------------------VS_OUTPUT VS( float4 Pos: POSITION, float4 Color: COLOR ){   VS_OUTPUT Out = (VS_OUTPUT) 0;    Out.Pos = mul(Pos, matWorldViewProj);   Out.Color = Color;   return Out;}

#pragma once#include "stdafx.h"#include "template.h"//-----------------------------------------------------------------------------// 全局变量//-----------------------------------------------------------------------------LPDIRECT3D9                g_pD3D       = NULL; //Direct3D对象LPDIRECT3DDEVICE9          g_pd3dDevice = NULL; //Direct3D设备对象LPDIRECT3DVERTEXBUFFER9    g_pVB        = NULL;    //顶点缓冲区对象LPDIRECT3DINDEXBUFFER9     g_pIB        =NULL;     //索引缓冲区对象LPDIRECT3DTEXTURE9         g_pTexture   = NULL;    //纹理对象IDirect3DVertexShader9*      g_pVertexShader      = NULL; //顶点渲染器LPD3DXCONSTANTTABLE          g_pConstantTable_VS  = NULL; //常量表对象D3DXMATRIXA16                matWorldViewProj;//-----------------------------------------------------------------------------// 显示帧率//-----------------------------------------------------------------------------ID3DXFont* Font   = 0;DWORD FrameCnt    = 0;float TimeElapsed = 0;float timeDelta   =0;float FPS         = 0;TCHAR TFPSString[100];//-----------------------------------------------------------------------------// Desc: 顶点结构//-----------------------------------------------------------------------------//定义顶点结构和顶点灵活格式struct CUSTOMVERTEX{D3DXVECTOR3 position;DWORD color;};#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE)float g_fSpinX = 0.0f;float g_fSpinY = 0.0f;float g_fDisZ = 0.0f;HRESULT InitGeometry(HWND hWnd ){//创建纹理对象if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice, L"512.jpg", &g_pTexture ) ) ){MessageBox(NULL, L"创建纹理失败", L"Texture.exe", MB_OK);return E_FAIL;}RECT   clientrc; GetClientRect(hWnd,&clientrc); RECT   windowrc; GetWindowRect(hWnd,&windowrc);int borderwidth=(windowrc.right-windowrc.left)-(clientrc.right-clientrc.left);int borderheight=(windowrc.bottom-windowrc.top)-(clientrc.bottom-clientrc.top);D3DSURFACE_DESC Desc;g_pTexture->GetLevelDesc(0, &Desc);SetWindowPos(hWnd,NULL,0,0,borderwidth+Desc.Width,borderheight+Desc.Height,SWP_NOZORDER|SWP_NOMOVE);//创建顶点缓冲区g_pd3dDevice->CreateVertexBuffer( 3*sizeof(CUSTOMVERTEX),0, D3DFVF_CUSTOMVERTEX,D3DPOOL_MANAGED, &g_pVB, NULL );//填充顶点缓冲区CUSTOMVERTEX* pVertices;g_pVB->Lock( 0, 0, (void**)&pVertices, 0 ) ;pVertices[0].position = D3DXVECTOR3(-1.5f, -1.5f,  0.0f);pVertices[0].color    = 0xffff0000;pVertices[1].position = D3DXVECTOR3(1.5f, -1.5f, 0.0f);pVertices[1].color    = 0xff00ff00;pVertices[2].position = D3DXVECTOR3(0.0f,  1.5f, 0.0f);pVertices[2].color    = 0xff00ffff;g_pVB->Unlock(); return S_OK;}//-----------------------------------------------------------------------------// Desc: 设置观察矩阵和投影矩阵//-----------------------------------------------------------------------------VOID SetWorldMatrix(){static long curTime=0;static float elapsetime=0;elapsetime = (timeGetTime()-curTime)/1000.0f;curTime = timeGetTime();D3DXMATRIX matRotation;D3DXMATRIX matTranslation;D3DXMatrixRotationYawPitchRoll( &matRotation, D3DXToRadian(g_fSpinX), D3DXToRadian(g_fSpinY), 0.0f );D3DXMatrixTranslation( &matTranslation, 0.0f, 0.0f, g_fDisZ );matWorldViewProj = matRotation * matTranslation;g_pConstantTable_VS->SetMatrix( g_pd3dDevice, "matWorldViewProj", &matWorldViewProj );}VOID SetupViewandProjMatrices(){//创建并设置观察矩阵D3DXVECTOR3 vEyePt( 0.0f, 0.0f, -2 );D3DXVECTOR3 vLookatPt( 0.0f, 0.0f, 0.0f );D3DXVECTOR3 vUpVec( 0.0f, 1.0f, 0.0f );D3DXMATRIXA16 matView;D3DXMatrixLookAtLH( &matView, &vEyePt, &vLookatPt, &vUpVec );g_pd3dDevice->SetTransform( D3DTS_VIEW, &matView );//创建并设置投影矩阵D3DXMATRIXA16 matProj;D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/2, 1.0f, 0.1f, 100.0f );g_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );}void SetLight(){}bool SetFont(){D3DXFONT_DESC df;ZeroMemory(&df, sizeof(D3DXFONT_DESC));df.Height         = 12;    // in logical unitsdf.Width          = 12;    // in logical units df.Weight         = 500;   // boldness, range 0(light) - 1000(bold)df.Italic         = false;      df.CharSet        = GB2312_CHARSET;df.OutputPrecision   = 0;                    df.Quality        = 0;           df.PitchAndFamily = 0;           wcscpy(df.FaceName, L"Times New Roman"); // font styleif(FAILED(D3DXCreateFontIndirect(g_pd3dDevice, &df, &Font))){::MessageBox(0, L"D3DXCreateFontIndirect() - FAILED", 0, 0);::PostQuitMessage(0);}return true;}//-----------------------------------------------------------------------------// Desc: 初始化Direct3D//-----------------------------------------------------------------------------HRESULT InitD3D( HWND hWnd ){if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )return E_FAIL;D3DDISPLAYMODE d3ddm;if( FAILED( g_pD3D->GetAdapterDisplayMode( D3DADAPTER_DEFAULT, &d3ddm ) ) ){// TO DO: Respond to failure of GetAdapterDisplayModereturn E_FAIL;}HRESULT hr;if( FAILED( hr = g_pD3D->CheckDeviceFormat( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, d3ddm.Format, D3DUSAGE_DEPTHSTENCIL,D3DRTYPE_SURFACE, D3DFMT_D16 ) ) ){if( hr == D3DERR_NOTAVAILABLE )// POTENTIAL PROBLEM: We need at least a 16-bit z-buffer!return E_FAIL;}//// Do we support hardware vertex processing? if so, use it. // If not, downgrade to software.//D3DCAPS9 d3dCaps;if( FAILED( g_pD3D->GetDeviceCaps( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &d3dCaps ) ) ){// TO DO: Respond to failure of GetDeviceCapsreturn E_FAIL;}//检查当前设备支持的顶点渲染版本是否低于2.0if( d3dCaps.VertexShaderVersion < D3DVS_VERSION(2,0) )AfxMessageBox(L"D3DDEVTYPE_REF");DWORD dwBehaviorFlags = 0;if( d3dCaps.VertexProcessingCaps != 0 )dwBehaviorFlags |= D3DCREATE_HARDWARE_VERTEXPROCESSING;elsedwBehaviorFlags |= D3DCREATE_SOFTWARE_VERTEXPROCESSING;//// Everything checks out - create a simple, windowed device.//D3DPRESENT_PARAMETERS d3dpp;memset(&d3dpp, 0, sizeof(d3dpp));d3dpp.BackBufferFormat       = d3ddm.Format;d3dpp.SwapEffect             = D3DSWAPEFFECT_DISCARD;d3dpp.Windowed               = TRUE;d3dpp.EnableAutoDepthStencil = TRUE;d3dpp.AutoDepthStencilFormat = D3DFMT_D16;d3dpp.PresentationInterval   = D3DPRESENT_INTERVAL_IMMEDIATE;if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,dwBehaviorFlags, &d3dpp, &g_pd3dDevice ) ) ){// TO DO: Respond to failure of CreateDevicereturn E_FAIL;}//禁用照明效果g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE ); //设置剔出模式为不剔出任何面g_pd3dDevice->SetRenderState(D3DRS_CULLMODE,  D3DCULL_NONE);//g_pd3dDevice->SetRenderState ( D3DRS_FILLMODE, D3DFILL_WIREFRAME );//编译顶点渲染器代码LPD3DXBUFFER pCode_VS;DWORD dwShaderFlags = D3DXSHADER_SKIPOPTIMIZATION|D3DXSHADER_DEBUG;D3DXCompileShaderFromFile( L"HLSLTransform.vsh", NULL, NULL, "VS","vs_2_0", dwShaderFlags, &pCode_VS,NULL, &g_pConstantTable_VS);//创建顶点渲染器g_pd3dDevice->CreateVertexShader((DWORD*)pCode_VS->GetBufferPointer(),&g_pVertexShader );pCode_VS->Release();//设置变换矩阵SetupViewandProjMatrices();SetLight();SetFont();return S_OK;}//-----------------------------------------------------------------------------// Desc: 释放创建对象//-----------------------------------------------------------------------------VOID Cleanup(){if( g_pVertexShader != NULL )g_pVertexShader->Release();if( g_pConstantTable_VS != NULL )g_pConstantTable_VS->Release();//释放纹理对象if( g_pTexture != NULL )g_pTexture->Release();//释放顶点缓冲区对象if( g_pVB != NULL )        g_pVB->Release();//释放索引缓冲区对象if( g_pIB != NULL )        g_pIB->Release();//释放Direct3D设备对象if( g_pd3dDevice != NULL) g_pd3dDevice->Release();//释放Direct3D对象if( g_pD3D != NULL)g_pD3D->Release();}//-----------------------------------------------------------------------------// Desc: 渲染图形//-----------------------------------------------------------------------------VOID Render(float timeDelta){FrameCnt++;TimeElapsed += timeDelta;if(TimeElapsed >= 1.0f){char FPSString[100];FPS = (float)FrameCnt / TimeElapsed;D3DCAPS9 d3dCaps;g_pD3D->GetDeviceCaps( D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL, &d3dCaps );if( d3dCaps.VertexProcessingCaps != 0 )sprintf(FPSString, "D3D9 %.2ffps HAL(hw vp)", FPS);elsesprintf(FPSString, "D3D9 %.2ffps REF(simulate hw vp) ", FPS);int nLen = strlen(FPSString) + 1;  FPSString[nLen] = '\0'; // mark end of stringint nwLen = MultiByteToWideChar(CP_ACP, 0, FPSString, nLen, NULL, 0);   MultiByteToWideChar(CP_ACP, 0, FPSString, nLen, TFPSString, nwLen); TimeElapsed = 0.0f;FrameCnt    = 0;}//清空后台缓冲区g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(45, 50, 170), 1.0f, 0 );SetWorldMatrix();//开始在后台缓冲区绘制图形if( SUCCEEDED( g_pd3dDevice->BeginScene() ) ){RECT rect = {0, 0, 600, 500};Font->DrawText(0,TFPSString,-1,&rect,DT_TOP | DT_LEFT, 0xffffff00);g_pd3dDevice->SetVertexShader( g_pVertexShader );g_pd3dDevice->SetStreamSource(0, g_pVB, 0, sizeof(Vertex));g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof(CUSTOMVERTEX) );g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 0, 1 );g_pd3dDevice->EndScene();}//将在后台缓冲区绘制的图形提交到前台缓冲区显示g_pd3dDevice->Present( NULL, NULL, NULL, NULL );}//-----------------------------------------------------------------------------// Desc: 消息处理//-----------------------------------------------------------------------------LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ){static POINT ptLastMousePosit;static POINT ptCurrentMousePosit;static bool bMousing;switch( msg ){case WM_KEYDOWN:switch(wParam){case VK_F1:D3DSURFACE_DESC Desc;g_pTexture->GetLevelDesc(0, &Desc);D3DLOCKED_RECT lockedRect;if(SUCCEEDED(g_pTexture->LockRect(0, &lockedRect, NULL, 0 ))){unsigned char* imageData = (unsigned char*)lockedRect.pBits;   for(UINT i=0;i<Desc.Height;i++){for (UINT j=0;j<Desc.Width;j++){int index = i * lockedRect.Pitch + j;if(imageData[index]<10)imageData[index]=0;elseimageData[index] = imageData[index]-10;}}g_pTexture-> UnlockRect(0); }break;}break;case WM_LBUTTONDOWN:{ptLastMousePosit.x = ptCurrentMousePosit.x = LOWORD (lParam);ptLastMousePosit.y = ptCurrentMousePosit.y = HIWORD (lParam);bMousing = true;}break;case WM_LBUTTONUP:{bMousing = false;}break;case WM_MOUSEMOVE:{ptCurrentMousePosit.x = LOWORD (lParam);ptCurrentMousePosit.y = HIWORD (lParam);if( bMousing ){g_fSpinX -= (ptCurrentMousePosit.x - ptLastMousePosit.x);g_fSpinY -= (ptCurrentMousePosit.y - ptLastMousePosit.y);}ptLastMousePosit.x = ptCurrentMousePosit.x;ptLastMousePosit.y = ptCurrentMousePosit.y;}break;case WM_MOUSEWHEEL:{g_fDisZ +=(short)HIWORD (wParam)*0.00005;}break;case WM_DESTROY:Cleanup();PostQuitMessage( 0 );return 0;case WM_PAINT:Render(timeDelta);ValidateRect( hWnd, NULL );return 0;}return DefWindowProc( hWnd, msg, wParam, lParam );}//-----------------------------------------------------------------------------// Desc: 程序入口//-----------------------------------------------------------------------------int APIENTRY _tWinMain(HINSTANCE hInstance,   HINSTANCE hPrevInstance,   LPTSTR    lpCmdLine,   int       nCmdShow){WNDCLASSEX winClass;MSG        uMsg;memset(&uMsg,0,sizeof(uMsg));winClass.lpszClassName = L"MY_WINDOWS_CLASS";winClass.cbSize        = sizeof(WNDCLASSEX);winClass.style         = CS_HREDRAW | CS_VREDRAW;winClass.lpfnWndProc   = MsgProc;winClass.hInstance     = hInstance;winClass.hIcon       = LoadIcon(hInstance, (LPCTSTR)IDI_DIRECTX_ICON);winClass.hIconSm   = LoadIcon(hInstance, (LPCTSTR)IDI_DIRECTX_ICON);winClass.hCursor       = LoadCursor(NULL, IDC_ARROW);winClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);winClass.lpszMenuName  = NULL;winClass.cbClsExtra    = 0;winClass.cbWndExtra    = 0;if( !RegisterClassEx(&winClass) )return E_FAIL;HWND hWnd = CreateWindowEx( NULL, L"MY_WINDOWS_CLASS", L"Direct3D (DX9) - Initialization",WS_OVERLAPPEDWINDOW | WS_VISIBLE,CW_USEDEFAULT, CW_USEDEFAULT, 640, 460, NULL, NULL, hInstance, NULL );//初始化Direct3Dif( SUCCEEDED( InitD3D( hWnd ) ) ){ if( SUCCEEDED(InitGeometry(hWnd))){//显示主窗口ShowWindow( hWnd, SW_SHOWDEFAULT );UpdateWindow( hWnd );static float lastTime = (float)timeGetTime(); //进入消息循环MSG msg;ZeroMemory( &msg, sizeof(msg) );while( msg.message!=WM_QUIT ){if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) ){TranslateMessage( &msg );DispatchMessage( &msg );}else{float currTime  = (float)timeGetTime();float timeDelta = (currTime - lastTime)*0.001f;Render(timeDelta);  //渲染图形lastTime = currTime;}}}}UnregisterClass( L"ClassName", hInstance);return 0;}

只实现了最简单的HLSL顶点渲染，实现了坐标变换。