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| 1 // | |
| 2 // Book: OpenGL(R) ES 2.0 Programming Guide | |
| 3 // Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner | |
| 4 // ISBN-10: 0321502795 | |
| 5 // ISBN-13: 9780321502797 | |
| 6 // Publisher: Addison-Wesley Professional | |
| 7 // URLs: http://safari.informit.com/9780321563835 | |
| 8 // http://www.opengles-book.com | |
| 9 // | |
| 10 | |
| 11 // esUtil_win32.c | |
| 12 // | |
| 13 // This file contains the Win32 implementation of the windowing functions. | |
| 14 | |
| 15 | |
| 16 /// | |
| 17 // Includes | |
| 18 // | |
| 19 #define WIN32_LEAN_AND_MEAN | |
| 20 #include <windows.h> | |
| 21 #include "esUtil.h" | |
| 22 | |
| 23 ////////////////////////////////////////////////////////////////// | |
| 24 // | |
| 25 // Private Functions | |
| 26 // | |
| 27 // | |
| 28 | |
| 29 /// | |
| 30 // ESWindowProc() | |
| 31 // | |
| 32 // Main window procedure | |
| 33 // | |
| 34 LRESULT WINAPI ESWindowProc ( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam
) | |
| 35 { | |
| 36 LRESULT lRet = 1; | |
| 37 | |
| 38 switch (uMsg) | |
| 39 { | |
| 40 case WM_CREATE: | |
| 41 break; | |
| 42 | |
| 43 case WM_PAINT: | |
| 44 { | |
| 45 ESContext *esContext = (ESContext*)(LONG_PTR) GetWindowLongPtr ( hWn
d, GWL_USERDATA ); | |
| 46 | |
| 47 if ( esContext && esContext->drawFunc ) | |
| 48 esContext->drawFunc ( esContext ); | |
| 49 | |
| 50 ValidateRect( esContext->hWnd, NULL ); | |
| 51 } | |
| 52 break; | |
| 53 | |
| 54 case WM_DESTROY: | |
| 55 PostQuitMessage(0); | |
| 56 break; | |
| 57 | |
| 58 case WM_CHAR: | |
| 59 { | |
| 60 POINT point; | |
| 61 ESContext *esContext = (ESContext*)(LONG_PTR) GetWindowLongPtr ( hWn
d, GWL_USERDATA ); | |
| 62 | |
| 63 GetCursorPos( &point ); | |
| 64 | |
| 65 if ( esContext && esContext->keyFunc ) | |
| 66 esContext->keyFunc ( esContext, (unsigned char) wParam, | |
| 67 (int) point.x, (int) point.y ); | |
| 68 } | |
| 69 break; | |
| 70 | |
| 71 default: | |
| 72 lRet = DefWindowProc (hWnd, uMsg, wParam, lParam); | |
| 73 break; | |
| 74 } | |
| 75 | |
| 76 return lRet; | |
| 77 } | |
| 78 | |
| 79 ////////////////////////////////////////////////////////////////// | |
| 80 // | |
| 81 // Public Functions | |
| 82 // | |
| 83 // | |
| 84 | |
| 85 /// | |
| 86 // WinCreate() | |
| 87 // | |
| 88 // Create Win32 instance and window | |
| 89 // | |
| 90 GLboolean WinCreate ( ESContext *esContext, const char *title ) | |
| 91 { | |
| 92 WNDCLASS wndclass = {0}; | |
| 93 DWORD wStyle = 0; | |
| 94 RECT windowRect; | |
| 95 HINSTANCE hInstance = GetModuleHandle(NULL); | |
| 96 | |
| 97 | |
| 98 wndclass.style = CS_OWNDC; | |
| 99 wndclass.lpfnWndProc = (WNDPROC)ESWindowProc; | |
| 100 wndclass.hInstance = hInstance; | |
| 101 wndclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); | |
| 102 wndclass.lpszClassName = "opengles2.0"; | |
| 103 | |
| 104 if (!RegisterClass (&wndclass) ) | |
| 105 return FALSE; | |
| 106 | |
| 107 wStyle = WS_VISIBLE | WS_POPUP | WS_BORDER | WS_SYSMENU | WS_CAPTION; | |
| 108 | |
| 109 // Adjust the window rectangle so that the client area has | |
| 110 // the correct number of pixels | |
| 111 windowRect.left = 0; | |
| 112 windowRect.top = 0; | |
| 113 windowRect.right = esContext->width; | |
| 114 windowRect.bottom = esContext->height; | |
| 115 | |
| 116 AdjustWindowRect ( &windowRect, wStyle, FALSE ); | |
| 117 | |
| 118 | |
| 119 | |
| 120 esContext->hWnd = CreateWindow( | |
| 121 "opengles2.0", | |
| 122 title, | |
| 123 wStyle, | |
| 124 0, | |
| 125 0, | |
| 126 windowRect.right - windowRect.left, | |
| 127 windowRect.bottom - windowRect.top, | |
| 128 NULL, | |
| 129 NULL, | |
| 130 hInstance, | |
| 131 NULL); | |
| 132 | |
| 133 // Set the ESContext* to the GWL_USERDATA so that it is available to the | |
| 134 // ESWindowProc | |
| 135 SetWindowLongPtr ( esContext->hWnd, GWL_USERDATA, (LONG) (LONG_PTR) esContex
t ); | |
| 136 | |
| 137 | |
| 138 if ( esContext->hWnd == NULL ) | |
| 139 return GL_FALSE; | |
| 140 | |
| 141 ShowWindow ( esContext->hWnd, TRUE ); | |
| 142 | |
| 143 return GL_TRUE; | |
| 144 } | |
| 145 | |
| 146 /// | |
| 147 // winLoop() | |
| 148 // | |
| 149 // Start main windows loop | |
| 150 // | |
| 151 void WinLoop ( ESContext *esContext ) | |
| 152 { | |
| 153 MSG msg = { 0 }; | |
| 154 int done = 0; | |
| 155 DWORD lastTime = GetTickCount(); | |
| 156 | |
| 157 while (!done) | |
| 158 { | |
| 159 int gotMsg = (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != 0); | |
| 160 DWORD curTime = GetTickCount(); | |
| 161 float deltaTime = (float)( curTime - lastTime ) / 1000.0f; | |
| 162 lastTime = curTime; | |
| 163 | |
| 164 if ( gotMsg ) | |
| 165 { | |
| 166 if (msg.message==WM_QUIT) | |
| 167 { | |
| 168 done=1; | |
| 169 } | |
| 170 else | |
| 171 { | |
| 172 TranslateMessage(&msg); | |
| 173 DispatchMessage(&msg); | |
| 174 } | |
| 175 } | |
| 176 else | |
| 177 SendMessage( esContext->hWnd, WM_PAINT, 0, 0 ); | |
| 178 | |
| 179 // Call update function if registered | |
| 180 if ( esContext->updateFunc != NULL ) | |
| 181 esContext->updateFunc ( esContext, deltaTime ); | |
| 182 } | |
| 183 } | |
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Chromium Code Reviews
Issue 525070:
Resubmit 35500: Added an application framework for demos. Ported hellotriangl... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/