2 * freeglut_init_mswin.c
4 * The Windows-specific mouse cursor related stuff.
6 * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
7 * Written by John F. Fay, <fayjf@sourceforge.net>
8 * Creation date: Thu Jan 19, 2012
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included
18 * in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #define FREEGLUT_BUILDING_LIB
29 #include <GL/freeglut.h>
30 #include "../fg_internal.h"
34 extern LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg,
35 WPARAM wParam, LPARAM lParam );
36 extern void fgPlatformInitSystemTime();
40 * A call to this function should initialize all the display stuff...
42 void fgPlatformInitialize( const char* displayName )
47 /* What we need to do is to initialize the fgDisplay global structure here. */
48 fgDisplay.pDisplay.Instance = GetModuleHandle( NULL );
49 fgDisplay.pDisplay.DisplayName= displayName ? strdup(displayName) : 0 ;
50 atom = GetClassInfo( fgDisplay.pDisplay.Instance, _T("FREEGLUT"), &wc );
54 ZeroMemory( &wc, sizeof(WNDCLASS) );
57 * Each of the windows should have its own device context, and we
58 * want redraw events during Vertical and Horizontal Resizes by
61 wc.lpfnWndProc = fgPlatformWindowProc;
64 wc.hInstance = fgDisplay.pDisplay.Instance;
65 wc.hIcon = LoadIcon( fgDisplay.pDisplay.Instance, _T("GLUT_ICON") );
67 #if defined(_WIN32_WCE)
68 wc.style = CS_HREDRAW | CS_VREDRAW;
70 wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
72 wc.hIcon = LoadIcon( NULL, IDI_WINLOGO );
75 wc.hCursor = LoadCursor( NULL, IDC_ARROW );
76 wc.hbrBackground = NULL;
77 wc.lpszMenuName = NULL;
78 wc.lpszClassName = _T("FREEGLUT");
80 /* Register the window class */
81 atom = RegisterClass( &wc );
82 FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Not Registered", "fgPlatformInitialize" );
85 /* The screen dimensions can be obtained via GetSystemMetrics() calls */
86 fgDisplay.ScreenWidth = GetSystemMetrics( SM_CXSCREEN );
87 fgDisplay.ScreenHeight = GetSystemMetrics( SM_CYSCREEN );
90 HWND desktop = GetDesktopWindow( );
91 HDC context = GetDC( desktop );
93 fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE );
94 fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE );
96 ReleaseDC( desktop, context );
98 /* If we have a DisplayName try to use it for metrics */
99 if( fgDisplay.pDisplay.DisplayName )
101 HDC context = CreateDC(fgDisplay.pDisplay.DisplayName,0,0,0);
104 fgDisplay.ScreenWidth = GetDeviceCaps( context, HORZRES );
105 fgDisplay.ScreenHeight = GetDeviceCaps( context, VERTRES );
106 fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE );
107 fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE );
111 fgWarning("fgPlatformInitialize: "
112 "CreateDC failed, Screen size info may be incorrect\n"
113 "This is quite likely caused by a bad '-display' parameter");
116 /* Set the timer granularity to 1 ms */
117 timeBeginPeriod ( 1 );
118 /* Init setup to deal with timer wrap, can't query system time before this is done */
119 fgPlatformInitSystemTime();
121 fgState.Time = fgSystemTime();
124 fgState.Initialised = GL_TRUE;
126 /* Avoid registering atexit callback on Win32 as it can result in an
127 * access violation due to calling into a module which has been
129 * Any cleanup isn't needed on Windows anyway, the OS takes care of it.
130 * see: http://blogs.msdn.com/b/oldnewthing/archive/2012/01/05/10253268.aspx
132 /* atexit(fgDeinitialize); */
134 /* InputDevice uses GlutTimerFunc(), so fgState.Initialised must be TRUE */
135 fgInitialiseInputDevices();
140 /* Platform-Specific Deinitialization Functions: */
141 extern void fghCloseInputDevices ( void );
143 void fgPlatformDeinitialiseInputDevices ( void )
145 #if !defined(_WIN32_WCE)
146 fghCloseInputDevices ();
147 #endif /* !defined(_WIN32_WCE) */
148 fgState.JoysticksInitialised = GL_FALSE;
149 fgState.InputDevsInitialised = GL_FALSE;
152 void fgPlatformCloseDisplay ( void )
154 if( fgDisplay.pDisplay.DisplayName )
156 free( fgDisplay.pDisplay.DisplayName );
157 fgDisplay.pDisplay.DisplayName = NULL;
160 /* Reset the timer granularity */
164 void fgPlatformDestroyContext ( SFG_PlatformDisplay pDisplay, SFG_WindowContextType MContext )
166 /* Do nothing -- this is required for X11 */
169 /* -- PLATFORM-SPECIFIC INTERFACE FUNCTION -------------------------------------------------- */
171 void (__cdecl *__glutExitFunc)( int return_value ) = NULL;
173 void FGAPIENTRY __glutInitWithExit( int *pargc, char **argv, void (__cdecl *exit_function)(int) )
175 __glutExitFunc = exit_function;
176 glutInit(pargc, argv);