AnimTestbed/3rdparty/ozz-animation/extern/glfw/lib/win32/win32_init.c

365 lines
12 KiB
C

//========================================================================
// GLFW - An OpenGL framework
// Platform: Win32/WGL
// API version: 2.7
// 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
}
//========================================================================
// Initialize GLFW thread package
//========================================================================
static void _glfwInitThreads( void )
{
// Initialize critical section handle
InitializeCriticalSection( &_glfwThrd.CriticalSection );
// The first thread (the main thread) has ID 0
_glfwThrd.NextID = 0;
// Fill out information about the main thread (this thread)
_glfwThrd.First.ID = _glfwThrd.NextID ++;
_glfwThrd.First.Function = NULL;
_glfwThrd.First.Handle = GetCurrentThread();
_glfwThrd.First.WinID = GetCurrentThreadId();
_glfwThrd.First.Previous = NULL;
_glfwThrd.First.Next = NULL;
}
//========================================================================
// Terminate GLFW thread package
//========================================================================
static void _glfwTerminateThreads( void )
{
_GLFWthread *t, *t_next;
// Enter critical section
ENTER_THREAD_CRITICAL_SECTION
// Kill all threads (NOTE: THE USER SHOULD WAIT FOR ALL THREADS TO
// DIE, _BEFORE_ CALLING glfwTerminate()!!!)
t = _glfwThrd.First.Next;
while( t != NULL )
{
// Get pointer to next thread
t_next = t->Next;
// Simply murder the process, no mercy!
if( TerminateThread( t->Handle, 0 ) )
{
// Close thread handle
CloseHandle( t->Handle );
// Free memory allocated for this thread
free( (void *) t );
}
// Select next thread in list
t = t_next;
}
// Leave critical section
LEAVE_THREAD_CRITICAL_SECTION
// Delete critical section handle
DeleteCriticalSection( &_glfwThrd.CriticalSection );
}
//========================================================================
// 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 );
// OZZ, temprorary disable warning 4996
#pragma warning(push)
#pragma warning(disable:4996)
GetVersionEx( &osi );
#pragma warning(pop)
_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;
// Initialise thread package
_glfwInitThreads();
_glfwPlatformGetDesktopMode( &_glfwLibrary.desktopMode );
// Install atexit() routine
atexit( _glfwTerminate_atexit );
// Start the timer
_glfwInitTimer();
return GL_TRUE;
}
//========================================================================
// Close window and kill all threads
//========================================================================
int _glfwPlatformTerminate( void )
{
// Only the main thread is allowed to do this...
if( GetCurrentThreadId() != _glfwThrd.First.WinID )
{
return GL_FALSE;
}
// Close OpenGL window
glfwCloseWindow();
// Kill thread package
_glfwTerminateThreads();
// 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) (INT_PTR) _glfwLibrary.Sys.foregroundLockTimeout,
SPIF_SENDCHANGE );
return GL_TRUE;
}