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- //////////////////////////////////////////////////////////////
- // Example 5.5: Viewport Rendering //
- // Written by: C. Granberg, 2006 //
- //////////////////////////////////////////////////////////////
-
- #include <windows.h>
- #include <d3dx9.h>
- #include "debug.h"
- #include "mesh.h"
- #include "object.h"
- #include "camera.h"
-
- class APPLICATION
- {
- public:
- APPLICATION();
- HRESULT Init(HINSTANCE hInstance, int width, int height, bool windowed);
- HRESULT Update(float deltaTime);
- HRESULT Render();
- HRESULT Cleanup();
- HRESULT Quit();
-
- private:
- IDirect3DDevice9* m_pDevice;
- MESH *m_pTrack;
- std::vector<OBJECT> m_cars;
-
- D3DLIGHT9 m_light;
- D3DRECT m_destRects[2];
- D3DRECT m_srcRects[2];
- D3DRECT m_currentRects[2];
-
- int m_viewConfig;
- float m_viewPortPrc;
- HWND m_mainWindow;
- ID3DXFont *m_pFont;
- };
-
- int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE prevInstance, PSTR cmdLine, int showCmd)
- {
- APPLICATION app;
-
- if(FAILED(app.Init(hInstance, 800, 600, true)))
- return 0;
-
- MSG msg;
- memset(&msg, 0, sizeof(MSG));
- int startTime = timeGetTime();
-
- while(msg.message != WM_QUIT)
- {
- if(::PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
- {
- ::TranslateMessage(&msg);
- ::DispatchMessage(&msg);
- }
- else
- {
- int t = timeGetTime();
- float deltaTime = (t - startTime)*0.001f;
-
- app.Update(deltaTime);
- app.Render();
-
- startTime = t;
- }
- }
-
- app.Cleanup();
-
- return msg.wParam;
- }
-
- APPLICATION::APPLICATION()
- {
- m_pDevice = NULL;
- m_mainWindow = 0;
- m_pTrack = NULL;
- m_viewConfig = 0;
- m_viewPortPrc = 0.0f;
-
- //Setup viewports
- m_srcRects[0].x1 = 5;
- m_srcRects[0].x2 = 395;
- m_srcRects[0].y1 = 35;
- m_srcRects[0].y2 = 595;
-
- m_srcRects[1].x1 = 405;
- m_srcRects[1].x2 = 795;
- m_srcRects[1].y1 = 35;
- m_srcRects[1].y2 = 595;
-
- m_currentRects[0] = m_destRects[0] = m_srcRects[0];
- m_currentRects[0] = m_destRects[1] = m_srcRects[1];
-
- srand(GetTickCount());
- }
-
- HRESULT APPLICATION::Init(HINSTANCE hInstance, int width, int height, bool windowed)
- {
- debug.Print("Application initiated");
-
- //Create Window Class
- WNDCLASS wc;
- memset(&wc, 0, sizeof(WNDCLASS));
- wc.style = CS_HREDRAW | CS_VREDRAW;
- wc.lpfnWndProc = (WNDPROC)::DefWindowProc;
- wc.hInstance = hInstance;
- wc.lpszClassName = "D3DWND";
-
- //Register Class and Create new Window
- RegisterClass(&wc);
- m_mainWindow = CreateWindow("D3DWND", "Example 5.5: Viewport Rendering", WS_EX_TOPMOST, 0, 0, width, height, 0, 0, hInstance, 0);
- SetCursor(NULL);
- ShowWindow(m_mainWindow, SW_SHOW);
- UpdateWindow(m_mainWindow);
-
- //Create IDirect3D9 Interface
- IDirect3D9* d3d9 = Direct3DCreate9(D3D_SDK_VERSION);
-
- if(d3d9 == NULL)
- {
- debug.Print("Direct3DCreate9() - FAILED");
- return E_FAIL;
- }
-
- //Check that the Device supports what we need from it
- D3DCAPS9 caps;
- d3d9->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps);
-
- //Hardware Vertex Processing or not?
- int vp = 0;
- if(caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)
- vp = D3DCREATE_HARDWARE_VERTEXPROCESSING;
- else vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
-
- //Check vertex & pixelshader versions
- if(caps.VertexShaderVersion < D3DVS_VERSION(2, 0) || caps.PixelShaderVersion < D3DPS_VERSION(2, 0))
- {
- debug.Print("Warning - Your graphic card does not support vertex and pixelshaders version 2.0");
- }
-
- //Set D3DPRESENT_PARAMETERS
- D3DPRESENT_PARAMETERS d3dpp;
- d3dpp.BackBufferWidth = width;
- d3dpp.BackBufferHeight = height;
- d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
- d3dpp.BackBufferCount = 1;
- d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
- d3dpp.MultiSampleQuality = 0;
- d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
- d3dpp.hDeviceWindow = m_mainWindow;
- d3dpp.Windowed = windowed;
- d3dpp.EnableAutoDepthStencil = true;
- d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
- d3dpp.Flags = 0;
- d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
- d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
-
- //Create the IDirect3DDevice9
- if(FAILED(d3d9->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, m_mainWindow,
- vp, &d3dpp, &m_pDevice)))
- {
- debug.Print("Failed to create IDirect3DDevice9");
- return E_FAIL;
- }
-
- //Release IDirect3D9 interface
- d3d9->Release();
-
- D3DXCreateFont(m_pDevice, 18, 0, 0, 1, false,
- DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, DEFAULT_QUALITY,
- DEFAULT_PITCH | FF_DONTCARE, "Arial", &m_pFont);
-
- //Load objects
- LoadObjectResources(m_pDevice);
-
- m_pTrack = new MESH("objects/track.x", m_pDevice);
- m_cars.push_back(OBJECT(0, D3DXVECTOR3(0.0f, 0.0f, 0.5f), D3DXVECTOR3(0.0f, 0.0f, 0.0f), 1.6f));
- m_cars.push_back(OBJECT(1, D3DXVECTOR3(0.0f, 0.0f, -1.5f), D3DXVECTOR3(0.0f, 0.0f, 0.0f), -1.6f));
- m_cars[1].m_activeCam = 1;
-
- //Create m_light
- ::ZeroMemory(&m_light, sizeof(m_light));
- m_light.Type = D3DLIGHT_DIRECTIONAL;
- m_light.Ambient = D3DXCOLOR(0.5, 0.5, 0.5, 1.0f);
- m_light.Diffuse = D3DXCOLOR(0.9, 0.9, 0.9, 1.0f);
- m_light.Specular = D3DXCOLOR(0.5, 0.5, 0.5, 1.0f);
- m_light.Direction = D3DXVECTOR3(0.5f, -0.6f, 0.0f);
- m_pDevice->SetLight(0, &m_light);
- m_pDevice->LightEnable(0, true);
-
- //Set sampler state
- for(int i=0;i<4;i++)
- {
- m_pDevice->SetSamplerState(i, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
- m_pDevice->SetSamplerState(i, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
- m_pDevice->SetSamplerState(i, D3DSAMP_MIPFILTER, D3DTEXF_POINT);
- }
-
- return S_OK;
- }
-
- HRESULT APPLICATION::Update(float deltaTime)
- {
- //Control camera
- D3DXMATRIX matWorld;
- D3DXMatrixIdentity(&matWorld);
- m_pDevice->SetTransform(D3DTS_WORLD, &matWorld);
-
- for(int i=0;i<m_cars.size();i++)
- m_cars[i].Update(deltaTime);
-
- if(KEYDOWN(VK_F1)) //Change Camera 1
- {
- m_cars[0].m_activeCam++;
- if(m_cars[0].m_activeCam >= m_cars[0].m_cameras.size())
- m_cars[0].m_activeCam = 0;
- Sleep(300);
- }
- else if(KEYDOWN(VK_F2)) //Change Camera 2
- {
- m_cars[1].m_activeCam++;
- if(m_cars[1].m_activeCam >= m_cars[0].m_cameras.size())
- m_cars[1].m_activeCam = 0;
- Sleep(300);
- }
- else if(KEYDOWN(VK_SPACE)) //Change Viewport settings
- {
- m_viewConfig++;
- if(m_viewConfig >= 3)
- m_viewConfig = 0;
-
- if(m_viewConfig == 0) //Split X
- {
- m_destRects[0].x1 = 5;
- m_destRects[0].x2 = 395;
- m_destRects[0].y1 = 35;
- m_destRects[0].y2 = 595;
- m_destRects[1].x1 = 405;
- m_destRects[1].x2 = 795;
- m_destRects[1].y1 = 35;
- m_destRects[1].y2 = 595;
- }
- else if(m_viewConfig == 1) //Split Y
- {
- m_destRects[0].x1 = 5;
- m_destRects[0].x2 = 795;
- m_destRects[0].y1 = 35;
- m_destRects[0].y2 = 305;
- m_destRects[1].x1 = 5;
- m_destRects[1].x2 = 795;
- m_destRects[1].y1 = 325;
- m_destRects[1].y2 = 595;
- }
- else if(m_viewConfig == 2) //Big 1, Small 2
- {
- m_destRects[0].x1 = 30;
- m_destRects[0].x2 = 770;
- m_destRects[0].y1 = 60;
- m_destRects[0].y2 = 570;
- m_destRects[1].x1 = 650;
- m_destRects[1].x2 = 790;
- m_destRects[1].y1 = 35;
- m_destRects[1].y2 = 175;
- }
-
- m_viewPortPrc = 0.0f;
- m_srcRects[0] = m_currentRects[0];
- m_srcRects[1] = m_currentRects[1];
- Sleep(300);
- }
- else if(KEYDOWN(VK_ESCAPE))
- Quit();
-
- //Change viewport rectangles
- m_viewPortPrc += deltaTime;
- if(m_viewPortPrc > 1.0f)m_viewPortPrc = 1.0f;
-
- //Linear interpolation between the two rectangles
- for(int i=0;i<2;i++)
- {
- m_currentRects[i].x1 = m_srcRects[i].x1 - (m_srcRects[i].x1*m_viewPortPrc) + (m_destRects[i].x1*m_viewPortPrc);
- m_currentRects[i].x2 = m_srcRects[i].x2 - (m_srcRects[i].x2*m_viewPortPrc) + (m_destRects[i].x2*m_viewPortPrc);
- m_currentRects[i].y1 = m_srcRects[i].y1 - (m_srcRects[i].y1*m_viewPortPrc) + (m_destRects[i].y1*m_viewPortPrc);
- m_currentRects[i].y2 = m_srcRects[i].y2 - (m_srcRects[i].y2*m_viewPortPrc) + (m_destRects[i].y2*m_viewPortPrc);
- }
-
- return S_OK;
- }
-
- HRESULT APPLICATION::Render()
- {
- // Clear the viewport
- D3DVIEWPORT9 v;
- v.X = v.Y = 0;
- v.Width = 800;
- v.Height = 600;
- v.MaxZ = 1.0f;
- v.MinZ = 0.0f;
-
- m_pDevice->SetViewport(&v);
-
- m_pDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0x00000000, 1.0f, 0L );
-
- RECT r[] = {{340, 10, 0, 0}, {40, 10, 0, 0}, {640, 10, 0, 0}};
- m_pFont->DrawText(NULL, "Space: Viewport", -1, &r[0], DT_LEFT| DT_TOP | DT_NOCLIP, 0xffffffff);
- m_pFont->DrawText(NULL, "F1: Camera 1", -1, &r[1], DT_LEFT| DT_TOP | DT_NOCLIP, 0xffffffff);
- m_pFont->DrawText(NULL, "F2: Camera 2", -1, &r[2], DT_LEFT| DT_TOP | DT_NOCLIP, 0xffffffff);
-
- // Begin the scene
- if(SUCCEEDED(m_pDevice->BeginScene()))
- {
- //For each car
- for(int c=0;c<m_cars.size();c++)
- {
- //Set and clear viewport
- v.X = m_currentRects[c].x1;
- v.Y = m_currentRects[c].y1;
- v.Width = m_currentRects[c].x2 - m_currentRects[c].x1;
- v.Height = m_currentRects[c].y2 - m_currentRects[c].y1;
- m_pDevice->SetViewport(&v);
- m_pDevice->Clear(0L, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xff4444ff, 1.0f, 0L );
-
- m_cars[c].UpdateCameras();
-
- D3DXMATRIX world;
- D3DXMatrixIdentity(&world);
- m_pDevice->SetTransform(D3DTS_WORLD, &world);
-
- //Render track
- m_pTrack->Render();
-
- //Render both cars
- for(int i=0;i<m_cars.size();i++)
- m_cars[i].Render();
- }
-
- // End the scene.
- m_pDevice->EndScene();
- m_pDevice->Present(0, 0, 0, 0);
- }
-
- return S_OK;
- }
-
- HRESULT APPLICATION::Cleanup()
- {
- try
- {
- UnloadObjectResources();
-
- if(m_pTrack != NULL)m_pTrack->Release();
-
- m_pFont->Release();
- m_pDevice->Release();
-
- debug.Print("Application terminated");
- }
- catch(...){}
-
- return S_OK;
- }
-
- HRESULT APPLICATION::Quit()
- {
- ::DestroyWindow(m_mainWindow);
- ::PostQuitMessage(0);
- return S_OK;
- }