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/*
===========================================================================

Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.

This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).

Doom 3 Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Doom 3 Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 Source Code is also subject to certain additional terms.
You should have received a copy of these additional terms immediately following
 the terms and conditions of the GNU General Public License which accompanied the
Doom 3 Source Code.  If not, please request a copy in writing from id Software
at the address below.

If you have questions concerning this license or the applicable additional terms,
you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120,
Rockville, Maryland 20850 USA.

===========================================================================
*/

#include "precompiled.h"
#include "win_local.h"
#include "../../renderer/tr_local.h"

void QGL_Shutdown( void )
{
	common->Printf( "...shutting down QGL\n" );
	
	if( win32.hinstOpenGL )
	{
		common->Printf( "...unloading OpenGL DLL\n" );
		FreeLibrary( win32.hinstOpenGL );
	}
	win32.hinstOpenGL = 0;
}

bool QGL_Init( const char *dllname )
{
	assert( win32.hinstOpenGL == 0 );
	
	common->Printf( "...initializing QGL\n" );
	common->Printf( "...calling LoadLibrary( '%s' ): ", dllname );
	
	// check that we loaded the correct OpenGL dll.
	if ( ( win32.hinstOpenGL = LoadLibrary( dllname ) ) != 0 )
	{
		GLenum err = glewInit();

		// Check if glew has been initialized properly, 
		// and if not print out why.
		if ( err != GLEW_NO_ERROR || err != GLEW_OK )
		{			
			common->Printf( "GLEW failed %s!\n", glewGetErrorString( err ) );
			return false;
		}
		common->Printf( "Using OpenGL driver %s\n", dllname );
	}
	common->Printf( "Status: Using GLEW %s\n", glewGetString( GLEW_VERSION ) );
	
	return true;
}

Code: Select all

/*
==================
GLW_GetWGLExtensionsWithFakeWindow

The Devil wrote this 666
==================
*/
void GLW_CheckWGLExtensions( HDC hDC )
{
	GLenum err = glewInit();

	// kinda stupid that glew needs to be initialized
	// for both standard gl and wgl extentions.
	if( err != GLEW_NO_ERROR || err != GLEW_OK )
	{
		common->Printf("WGLEW failed %s!\n", glewGetErrorString(err));
	}
	else
	{
		if (wglewIsSupported("WGL_ARB_extensions_string"))
		{
			common->Printf("...initializing WGL_ARB_extensions_string\n");
		}
		else
		{
			common->Printf("WGL_ARB_extensions_string returned %s!\n", glewGetErrorString(err));
		}

		if (wglewIsSupported("WGL_EXT_swap_control"))
		{
			common->Printf("...initializing WGL_EXT_swap_control\n");
		}
		else
		{
			common->Printf("WGL_EXT_swap_control returned %s!\n", glewGetErrorString(err));
		}

		if (wglewIsSupported("WGL_ARB_pixel_format"))
		{
			common->Printf("...initializing WGL_ARB_pixel_format\n");
		}
		else
		{
			common->Printf("WGL_ARB_pixel_format returned %s!\n", glewGetErrorString(err));
		}

		if (wglewIsSupported("WGL_ARB_pbuffer"))
		{
			common->Printf("...initializing WGL_ARB_pbuffer\n");
		}
		else
		{
			common->Printf("WGL_ARB_pbuffer returned %s!\n", glewGetErrorString(err));
		}

		if (wglewIsSupported("WGL_ARB_render_texture"))
		{
			common->Printf("...initializing WGL_ARB_render_texture\n");
		}
		else
		{
			common->Printf("WGL_ARB_render_texture returned %s!\n", glewGetErrorString(err));
		}
	}
}