win32窗口实现的多显示器多窗口多线程OpenGL程序源代码

#include "ThreadWin.h" #include <GL/gl.h> // OpenGL definitions #include <stdio.h> #include <assert.h> #include "Monitor.h" static WNDCLASSEX wcx; static char szAppName[] = "OpenGL"; HINSTANCE _hInstance; MouseState mouse = { 0, 0, false, false, false, }; #define TESTFLAGS (PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL) //****************************************************************** //****************************************************************** DWORD tlsIndex; // Index for thread local data. //****************************************************************** //****************************************************************** //======================================================================== // Setup a pixel format for a window, create context and initialize // OpenGL 1.2 procs. BOOL SetupWindow (HWND hWnd, WindowData *pwdata) { int iPixelFormat = 0; static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be { sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor 1, // Version Number PFD_DRAW_TO_WINDOW | // Format Must Support Window PFD_SUPPORT_OPENGL | // Format Must Support OpenGL PFD_DOUBLEBUFFER, // Must Support Double Buffering PFD_TYPE_RGBA, // Request An RGBA Format 32, // Select Our Color Depth 0, 0, 0, 0, 0, 0, // Color Bits Ignored 0, // No Alpha Buffer 0, // Shift Bit Ignored 0, // No Accumulation Buffer 0, 0, 0, 0, // Accumulation Bits Ignored 16, // 16Bit Z-Buffer (Depth Buffer) 0, // No Stencil Buffer 0, // No Auxiliary Buffer PFD_MAIN_PLANE, // Main Drawing Layer 0, // Reserved 0, 0, 0 // Layer Masks Ignored }; if (!(pwdata->hDC=GetDC(hWnd))) // Did We Get A Device Context? { MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; // Return FALSE } if (!(iPixelFormat=ChoosePixelFormat(pwdata->hDC,&pfd))) // Did Windows Find A Matching Pixel Format? { MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; // Return FALSE } if(!SetPixelFormat(pwdata->hDC,iPixelFormat,&pfd)) // Are We Able To Set The Pixel Format? { MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; // Return FALSE } if (!(pwdata->hRC=wglCreateContext(pwdata->hDC))) // Are We Able To Get A Rendering Context? { MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; // Return FALSE } if(!wglMakeCurrent(pwdata->hDC,pwdata->hRC)) // Try To Activate The Rendering Context { MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; // Return FALSE } // Initialize the OpenGL context. pwdata->InitOpenGL(pwdata); return TRUE; } //======================================================================== // Proc to receive window messages LONG WINAPI OnKeyDown(unsigned int key, WindowData* pwdata) { RECT rc; switch (key) { case 27: PostMessage(pwdata->hWnd, WM_DESTROY, 0, 0); break; case VK_F11: if (pwdata->bFullscreen) { MoveWindow(pwdata->hWnd, pwdata->xpos, pwdata->ypos, 800, 600, TRUE); } else { GetWindowRect(pwdata->hWnd, &rc); pwdata->xpos = rc.left; pwdata->ypos = rc.top; pwdata->width = rc.right - rc.left; pwdata->height = rc.bottom - rc.top; GetMonitorRect(&rc, GetMonitor(pwdata->display)); MoveWindow(pwdata->hWnd, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, TRUE); } pwdata->bFullscreen = !pwdata->bFullscreen; break; } pwdata->KeyDown(key, pwdata); return 0; } LONG WINAPI OnPaint(HWND wParam, WindowData* lParam) { PAINTSTRUCT ps; HWND hWnd = wParam; WindowData* pwdata = lParam; //BeginPaint (hWnd, &ps); pwdata->DrawScene(pwdata); // Update the client area SwapBuffers (pwdata->hDC); //EndPaint (hWnd, &ps); return 0; } LONG WINAPI WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { WindowData *pwdata; POINTS p; RECT rect; // Obtain the window data for this thread. Note that WM_CREATE cannot // "read" the values in window data since it has not yet been setup until // we have gone through creation/initialization. pwdata = (WindowData *)TlsGetValue (tlsIndex); // Process the window message. switch (msg) { case WM_CREATE: if (!SetupWindow (hWnd, (WindowData *)((LPCREATESTRUCT) lParam)->lpCreateParams)) // Did We Get A Device Context? { MessageBox(NULL,"Can't Setup the Window For OpenGL Rendering.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; // Return FALSE } return (0); case WM_SIZE: pwdata->width = LOWORD (lParam); pwdata->height = HIWORD (lParam); glViewport (0, 0, pwdata->width, pwdata->height); //glMatrixMode(GL_PROJECTION); //glLoadIdentity(); //glOrtho(0, pwdata->width, 0, pwdata->height, -100, 100); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); return 0; case WM_MOVE: break; case WM_LBUTTONDOWN: p = MAKEPOINTS(lParam); mouse.x = p.x; mouse.y = p.y; mouse.lbdown = true; break; case WM_LBUTTONUP: //p = MAKEPOINTS(lParam); //mouse.x = p.x; //mouse.y = p.y; mouse.lbdown = false; break; case WM_MOUSEMOVE: p = MAKEPOINTS(lParam); GetWindowRect(pwdata->hWnd, &rect); /*MK_CONTROL?*/ if (mouse.lbdown) { SetWindowPos( pwdata->hWnd, 0, rect.left-mouse.x + p.x, rect.top-mouse.y + p.y, pwdata->width, pwdata->height, SWP_NOSIZE); } break; case WM_ERASEBKGND: break; case WM_PAINT: // Since each thread has its own context, we don't have // to do a MakeCurrent for each paint message. OnPaint(hWnd, pwdata); return 0; case WM_KEYDOWN: OnKeyDown((unsigned int)wParam, pwdata); return 0; case WM_DESTROY: // Delete the context. wglDeleteContext (pwdata->hRC); PostQuitMessage( 0 ); if (pwdata->bMainwindow) { ExitProcess(0); } return 0; } return DefWindowProc (hWnd, msg, wParam, lParam); } //======================================================================== int ThreadMain (void *vi) { int i = (int) vi; MSG msg; // message struct RECT rect; //****************************************************************** //****************************************************************** // Store the windowData for this thread in the thread local data. TlsSetValue (tlsIndex, &wdata[i]); //****************************************************************** //****************************************************************** // Fill in the window class structure with parameters // that describe the main window. wcx.cbSize = sizeof(wcx); // size of structure wcx.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // redraw if size changes wcx.lpfnWndProc = WndProc; // points to window procedure wcx.cbClsExtra = 0; // no extra class memory wcx.cbWndExtra = 0; // no extra window memory wcx.hInstance = _hInstance; // handle to instance wcx.hIcon = LoadIcon(NULL, IDI_APPLICATION); // predefined app. icon wcx.hCursor = LoadCursor(NULL, IDC_ARROW); // predefined arrow wcx.hbrBackground = (HBRUSH)GetStockObject( WHITE_BRUSH); // white background brush wcx.lpszMenuName = NULL; // name of menu resource wcx.lpszClassName = szAppName; // name of window class