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/***************************************************************************
extensionmanager.cpp - description
-------------------
begin : august 15th, 2008
copyright : (C) 2008 by Duong Khang NGUYEN
email : neoneurone @ gmail com
$Id: extensionmanager.cpp 462 2011-07-03 15:49:40Z neoneurone $
***************************************************************************/
/***************************************************************************
* *
* This program 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 2 of the License, or *
* any later version. *
* *
***************************************************************************/
#include "extensionmanager.h"
/*====================================================================*/
ExtensionManager::ExtensionManager():
_bInitialized(false)
{
OPENCITY_DEBUG("ctor");
}
/*====================================================================*/
ExtensionManager::~ExtensionManager()
{
OPENCITY_DEBUG("dtor");
}
/*====================================================================*/
bool
ExtensionManager::Load()
{
bool ok = true;
// Warning: ISO C++ forbids casting between pointer-to-function and pointer-to-object
// There's no other solution at the time of writing.
// Look for the glTexImage3DEXT function.
this->glTexImage3D = (PFNGLTEXIMAGE3DEXTPROC)SDL_GL_GetProcAddress("glTexImage3DEXT");
// Look for the glTexImage3D function instead.
if (this->glTexImage3D == NULL) {
this->glTexImage3D = (PFNGLTEXIMAGE3DEXTPROC)SDL_GL_GetProcAddress("glTexImage3D");
}
if (this->glTexImage3D == NULL) {
OPENCITY_ERROR( "GL_EXT_texture3D extension unsupported by your video driver" );
ok = false;
}
else {
OPENCITY_INFO( "GL_EXT_texture3D supported" );
}
_bInitialized = ok;
return ok;
}
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