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