| //======================================================================== |
| // GLFW - An OpenGL framework |
| // Platform: Win32/WGL |
| // API version: 3.0 |
| // WWW: http://www.glfw.org/ |
| //------------------------------------------------------------------------ |
| // Copyright (c) 2002-2006 Marcus Geelnard |
| // Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org> |
| // |
| // This software is provided 'as-is', without any express or implied |
| // warranty. In no event will the authors be held liable for any damages |
| // arising from the use of this software. |
| // |
| // Permission is granted to anyone to use this software for any purpose, |
| // including commercial applications, and to alter it and redistribute it |
| // freely, subject to the following restrictions: |
| // |
| // 1. The origin of this software must not be misrepresented; you must not |
| // claim that you wrote the original software. If you use this software |
| // in a product, an acknowledgment in the product documentation would |
| // be appreciated but is not required. |
| // |
| // 2. Altered source versions must be plainly marked as such, and must not |
| // be misrepresented as being the original software. |
| // |
| // 3. This notice may not be removed or altered from any source |
| // distribution. |
| // |
| //======================================================================== |
| |
| #include "internal.h" |
| |
| // With the Borland C++ compiler, we want to disable FPU exceptions |
| #ifdef __BORLANDC__ |
| #include <float.h> |
| #endif // __BORLANDC__ |
| |
| |
| |
| //************************************************************************ |
| //**** GLFW internal functions **** |
| //************************************************************************ |
| |
| //======================================================================== |
| // Load necessary libraries (DLLs) |
| //======================================================================== |
| |
| static int _glfwInitLibraries( void ) |
| { |
| // gdi32.dll (OpenGL pixel format functions & SwapBuffers) |
| #ifndef _GLFW_NO_DLOAD_GDI32 |
| _glfwLibrary.Libs.gdi32 = LoadLibrary( "gdi32.dll" ); |
| if( _glfwLibrary.Libs.gdi32 != NULL ) |
| { |
| _glfwLibrary.Libs.ChoosePixelFormat = (CHOOSEPIXELFORMAT_T) |
| GetProcAddress( _glfwLibrary.Libs.gdi32, "ChoosePixelFormat" ); |
| _glfwLibrary.Libs.DescribePixelFormat = (DESCRIBEPIXELFORMAT_T) |
| GetProcAddress( _glfwLibrary.Libs.gdi32, "DescribePixelFormat" ); |
| _glfwLibrary.Libs.GetPixelFormat = (GETPIXELFORMAT_T) |
| GetProcAddress( _glfwLibrary.Libs.gdi32, "GetPixelFormat" ); |
| _glfwLibrary.Libs.SetPixelFormat = (SETPIXELFORMAT_T) |
| GetProcAddress( _glfwLibrary.Libs.gdi32, "SetPixelFormat" ); |
| _glfwLibrary.Libs.SwapBuffers = (SWAPBUFFERS_T) |
| GetProcAddress( _glfwLibrary.Libs.gdi32, "SwapBuffers" ); |
| if( _glfwLibrary.Libs.ChoosePixelFormat == NULL || |
| _glfwLibrary.Libs.DescribePixelFormat == NULL || |
| _glfwLibrary.Libs.GetPixelFormat == NULL || |
| _glfwLibrary.Libs.SetPixelFormat == NULL || |
| _glfwLibrary.Libs.SwapBuffers == NULL ) |
| { |
| FreeLibrary( _glfwLibrary.Libs.gdi32 ); |
| _glfwLibrary.Libs.gdi32 = NULL; |
| return GL_FALSE; |
| } |
| } |
| else |
| { |
| return GL_FALSE; |
| } |
| #endif // _GLFW_NO_DLOAD_GDI32 |
| |
| // winmm.dll (for joystick and timer support) |
| #ifndef _GLFW_NO_DLOAD_WINMM |
| _glfwLibrary.Libs.winmm = LoadLibrary( "winmm.dll" ); |
| if( _glfwLibrary.Libs.winmm != NULL ) |
| { |
| _glfwLibrary.Libs.joyGetDevCapsA = (JOYGETDEVCAPSA_T) |
| GetProcAddress( _glfwLibrary.Libs.winmm, "joyGetDevCapsA" ); |
| _glfwLibrary.Libs.joyGetPos = (JOYGETPOS_T) |
| GetProcAddress( _glfwLibrary.Libs.winmm, "joyGetPos" ); |
| _glfwLibrary.Libs.joyGetPosEx = (JOYGETPOSEX_T) |
| GetProcAddress( _glfwLibrary.Libs.winmm, "joyGetPosEx" ); |
| _glfwLibrary.Libs.timeGetTime = (TIMEGETTIME_T) |
| GetProcAddress( _glfwLibrary.Libs.winmm, "timeGetTime" ); |
| if( _glfwLibrary.Libs.joyGetDevCapsA == NULL || |
| _glfwLibrary.Libs.joyGetPos == NULL || |
| _glfwLibrary.Libs.joyGetPosEx == NULL || |
| _glfwLibrary.Libs.timeGetTime == NULL ) |
| { |
| FreeLibrary( _glfwLibrary.Libs.winmm ); |
| _glfwLibrary.Libs.winmm = NULL; |
| return GL_FALSE; |
| } |
| } |
| else |
| { |
| return GL_FALSE; |
| } |
| #endif // _GLFW_NO_DLOAD_WINMM |
| |
| return GL_TRUE; |
| } |
| |
| |
| //======================================================================== |
| // Unload used libraries (DLLs) |
| //======================================================================== |
| |
| static void _glfwFreeLibraries( void ) |
| { |
| // gdi32.dll |
| #ifndef _GLFW_NO_DLOAD_GDI32 |
| if( _glfwLibrary.Libs.gdi32 != NULL ) |
| { |
| FreeLibrary( _glfwLibrary.Libs.gdi32 ); |
| _glfwLibrary.Libs.gdi32 = NULL; |
| } |
| #endif // _GLFW_NO_DLOAD_GDI32 |
| |
| // winmm.dll |
| #ifndef _GLFW_NO_DLOAD_WINMM |
| if( _glfwLibrary.Libs.winmm != NULL ) |
| { |
| FreeLibrary( _glfwLibrary.Libs.winmm ); |
| _glfwLibrary.Libs.winmm = NULL; |
| } |
| #endif // _GLFW_NO_DLOAD_WINMM |
| } |
| |
| |
| //======================================================================== |
| // Terminate GLFW when exiting application |
| //======================================================================== |
| |
| void _glfwTerminate_atexit( void ) |
| { |
| glfwTerminate(); |
| } |
| |
| |
| |
| //************************************************************************ |
| //**** Platform implementation functions **** |
| //************************************************************************ |
| |
| //======================================================================== |
| // Initialize various GLFW state |
| //======================================================================== |
| |
| int _glfwPlatformInit( void ) |
| { |
| OSVERSIONINFO osi; |
| |
| // To make SetForegroundWindow() work as we want, we need to fiddle |
| // with the FOREGROUNDLOCKTIMEOUT system setting (we do this as early |
| // as possible in the hope of still being the foreground process) |
| SystemParametersInfo( SPI_GETFOREGROUNDLOCKTIMEOUT, 0, |
| &_glfwLibrary.Sys.foregroundLockTimeout, 0 ); |
| SystemParametersInfo( SPI_SETFOREGROUNDLOCKTIMEOUT, 0, (LPVOID)0, |
| SPIF_SENDCHANGE ); |
| |
| // Check which OS version we are running |
| osi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO ); |
| GetVersionEx( &osi ); |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_UNKNOWN; |
| if( osi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS ) |
| { |
| if( osi.dwMajorVersion == 4 && osi.dwMinorVersion < 10 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_95; |
| } |
| else if( osi.dwMajorVersion == 4 && osi.dwMinorVersion < 90 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_98; |
| } |
| else if( osi.dwMajorVersion == 4 && osi.dwMinorVersion == 90 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_ME; |
| } |
| else if( osi.dwMajorVersion >= 4 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_UNKNOWN_9x; |
| } |
| } |
| else if( osi.dwPlatformId == VER_PLATFORM_WIN32_NT ) |
| { |
| if( osi.dwMajorVersion == 4 && osi.dwMinorVersion == 0 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_NT4; |
| } |
| else if( osi.dwMajorVersion == 5 && osi.dwMinorVersion == 0 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_2K; |
| } |
| else if( osi.dwMajorVersion == 5 && osi.dwMinorVersion == 1 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_XP; |
| } |
| else if( osi.dwMajorVersion == 5 && osi.dwMinorVersion == 2 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_NET_SERVER; |
| } |
| else if( osi.dwMajorVersion >= 5 ) |
| { |
| _glfwLibrary.Sys.winVer = _GLFW_WIN_UNKNOWN_NT; |
| } |
| } |
| |
| // Do we have Unicode support? |
| if( _glfwLibrary.Sys.winVer >= _GLFW_WIN_NT4 ) |
| { |
| // Windows NT/2000/XP/.NET has Unicode support |
| _glfwLibrary.Sys.hasUnicode = GL_TRUE; |
| } |
| else |
| { |
| // Windows 9x/ME does not have Unicode support |
| _glfwLibrary.Sys.hasUnicode = GL_FALSE; |
| } |
| |
| // Load libraries (DLLs) |
| if( !_glfwInitLibraries() ) |
| { |
| return GL_FALSE; |
| } |
| |
| // With the Borland C++ compiler, we want to disable FPU exceptions |
| // (this is recommended for OpenGL applications under Windows) |
| #ifdef __BORLANDC__ |
| _control87( MCW_EM, MCW_EM ); |
| #endif |
| |
| // Retrieve GLFW instance handle |
| _glfwLibrary.instance = GetModuleHandle( NULL ); |
| |
| // System keys are not disabled |
| _glfwWin.keyboardHook = NULL; |
| |
| // Install atexit() routine |
| atexit( _glfwTerminate_atexit ); |
| |
| // Start the timer |
| _glfwInitTimer(); |
| |
| return GL_TRUE; |
| } |
| |
| |
| //======================================================================== |
| // Close window and shut down library |
| //======================================================================== |
| |
| int _glfwPlatformTerminate( void ) |
| { |
| // Close OpenGL window |
| glfwCloseWindow(); |
| |
| // Enable system keys again (if they were disabled) |
| glfwEnable( GLFW_SYSTEM_KEYS ); |
| |
| // Unload libraries (DLLs) |
| _glfwFreeLibraries(); |
| |
| // Restore FOREGROUNDLOCKTIMEOUT system setting |
| SystemParametersInfo( SPI_SETFOREGROUNDLOCKTIMEOUT, 0, |
| (LPVOID)_glfwLibrary.Sys.foregroundLockTimeout, |
| SPIF_SENDCHANGE ); |
| |
| return GL_TRUE; |
| } |
| |
