glfw/lib/init.c
2010-09-09 18:15:32 +02:00

100 lines
3.0 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"
#include <string.h>
//************************************************************************
//**** GLFW user functions ****
//************************************************************************
//========================================================================
// Initialize various GLFW state
//========================================================================
GLFWAPI int glfwInit(void)
{
if (_glfwInitialized)
return GL_TRUE;
memset(&_glfwLibrary, 0, sizeof(_glfwLibrary));
// 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)
{
if (!_glfwInitialized)
return;
// Platform specific termination
if (!_glfwPlatformTerminate())
return;
// GLFW is no longer initialized
_glfwInitialized = GL_FALSE;
}
//========================================================================
// 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;
}