glfw/lib/init.c
2010-09-07 17:41:26 +02:00

111 lines
3.3 KiB
C

//========================================================================
// GLFW - An OpenGL framework
// Platform: Any
// 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.
//
//========================================================================
#define _init_c_
#include "internal.h"
//************************************************************************
//**** GLFW user functions ****
//************************************************************************
//========================================================================
// glfwInit() - Initialize various GLFW state
//========================================================================
GLFWAPI int glfwInit( void )
{
// Is GLFW already initialized?
if( _glfwInitialized )
{
return GL_TRUE;
}
memset( &_glfwLibrary, 0, sizeof( _glfwLibrary ) );
memset( &_glfwWin, 0, sizeof( _glfwWin ) );
// Window is not yet opened
_glfwWin.opened = GL_FALSE;
// Default enable/disable settings
_glfwWin.sysKeysDisabled = GL_FALSE;
// Clear window hints
_glfwClearWindowHints();
// Platform specific initialization
if( !_glfwPlatformInit() )
{
return GL_FALSE;
}
// Form now on, GLFW state is valid
_glfwInitialized = GL_TRUE;
return GL_TRUE;
}
//========================================================================
// Close window and shut down library
//========================================================================
GLFWAPI void glfwTerminate( void )
{
// Is GLFW initialized?
if( !_glfwInitialized )
{
return;
}
// Platform specific termination
if( !_glfwPlatformTerminate() )
{
return;
}
// GLFW is no longer initialized
_glfwInitialized = GL_FALSE;
}
//========================================================================
// glfwGetVersion() - Get GLFW version
//========================================================================
GLFWAPI void glfwGetVersion( int *major, int *minor, int *rev )
{
if( major != NULL ) *major = GLFW_VERSION_MAJOR;
if( minor != NULL ) *minor = GLFW_VERSION_MINOR;
if( rev != NULL ) *rev = GLFW_VERSION_REVISION;
}