| //======================================================================== |
| // 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__ |
| |
| |
| //======================================================================== |
| // Load necessary libraries (DLLs) |
| //======================================================================== |
| |
| static GLboolean initLibraries(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 && |
| _glfwLibrary.Libs.DescribePixelFormat && |
| _glfwLibrary.Libs.GetPixelFormat && |
| _glfwLibrary.Libs.SetPixelFormat && |
| _glfwLibrary.Libs.SwapBuffers) |
| { |
| 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 && |
| _glfwLibrary.Libs.joyGetPos && |
| _glfwLibrary.Libs.joyGetPosEx && |
| _glfwLibrary.Libs.timeGetTime) |
| { |
| 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 freeLibraries(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 |
| //======================================================================== |
| |
| static void glfw_atexit(void) |
| { |
| glfwTerminate(); |
| } |
| |
| |
| ////////////////////////////////////////////////////////////////////////// |
| ////// GLFW platform API ////// |
| ////////////////////////////////////////////////////////////////////////// |
| |
| //======================================================================== |
| // 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(glfw_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; |
| } |
| |
