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//========================================================================
// GLFW - An OpenGL framework
// File: win32_glext.c
// Platform: Windows
// API version: 2.6
// WWW: http://glfw.sourceforge.net
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Camilla Berglund
//
// 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"
//************************************************************************
//**** Platform implementation functions ****
//************************************************************************
//========================================================================
// Check if an OpenGL extension is available at runtime (Windows version checks
// for WGL extensions)
//========================================================================
int _glfwPlatformExtensionSupported( const char *extension )
{
const GLubyte *extensions;
// Try wglGetExtensionsStringEXT
if( _glfwWin.GetExtensionsStringEXT != NULL )
{
extensions = (GLubyte *) _glfwWin.GetExtensionsStringEXT();
if( extensions != NULL )
{
if( _glfwStringInExtensionString( extension, extensions ) )
{
return GL_TRUE;
}
}
}
// Try wglGetExtensionsStringARB
if( _glfwWin.GetExtensionsStringARB != NULL )
{
extensions = (GLubyte *) _glfwWin.GetExtensionsStringARB( _glfwWin.DC );
if( extensions != NULL )
{
if( _glfwStringInExtensionString( extension, extensions ) )
{
return GL_TRUE;
}
}
}
return GL_FALSE;
}
//========================================================================
// Get the function pointer to an OpenGL function
//========================================================================
void * _glfwPlatformGetProcAddress( const char *procname )
{
return (void *) wglGetProcAddress( procname );
}
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