GLGlobalState.cpp

Go to the documentation of this file.

////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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
//    (at your option) any later version.
//
//    Scorched3D 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 Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#include <GLEXT/GLGlobalState.h>
#include <common/DefinesAssert.h>

GLState *GLGlobalState::state_(0);
unsigned int GLGlobalState::stateStack_(0);

GLGlobalState::GLGlobalState(unsigned wantedState)
{
        if (!state_)
        {
                state_ = new GLState(wantedState);
                DIALOG_ASSERT(stateStack_ == 0);
        }
        else
        {
                state_->setState(wantedState);
        }
        stateStack_++;
}

GLGlobalState::~GLGlobalState()
{
        --stateStack_;
        if (stateStack_ == 0)
        {
                delete state_;
                state_ = 0;
        }
}

void GLGlobalState::setState(unsigned wantedState)
{
        DIALOG_ASSERT(state_);
        state_->setState(wantedState);
}

---