ResInsight/Fwk/VizFwk/LibRender/cvfRenderStateCullFace.cpp

139 lines
4.4 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2013 Ceetron AS
//
// This library may be used under the terms of either the GNU General Public License or
// the GNU Lesser General Public License as follows:
//
// GNU General Public License Usage
// This library 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.
//
// This library 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 at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
// GNU Lesser General Public License Usage
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
// for more details.
//
//##################################################################################################
#include "cvfBase.h"
#include "cvfRenderStateCullFace.h"
#include "cvfAssert.h"
#include "cvfOpenGL.h"
namespace cvf {
//==================================================================================================
///
/// \class cvf::RenderStateCullFace
/// \ingroup Render
///
/// Encapsulate OpenGL glCullFace() and glEnable(GL_CULL_FACE) functions.
///
/// \sa http://www.opengl.org/sdk/docs/man/xhtml/glCullFace.xml
/// \sa http://www.opengl.org/sdk/docs/man/xhtml/glEnable.xml
//==================================================================================================
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
RenderStateCullFace::RenderStateCullFace(bool enableCulling, Mode faceMode)
: RenderState(CULL_FACE),
m_enableCulling(enableCulling),
m_faceMode(faceMode)
{
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RenderStateCullFace::enable(bool enableCulling)
{
m_enableCulling = enableCulling;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool RenderStateCullFace::isEnabled() const
{
return m_enableCulling;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RenderStateCullFace::setMode(Mode faceMode)
{
m_faceMode = faceMode;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
RenderStateCullFace::Mode RenderStateCullFace::mode() const
{
return m_faceMode;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RenderStateCullFace::applyOpenGL(OpenGLContext* oglContext) const
{
if (m_enableCulling)
{
if (m_faceMode == BACK)
{
glCullFace(GL_BACK);
}
else if (m_faceMode == FRONT)
{
glCullFace(GL_FRONT);
}
else
{
glCullFace(GL_FRONT_AND_BACK);
}
glEnable(GL_CULL_FACE);
}
else
{
glDisable(GL_CULL_FACE);
}
CVF_CHECK_OGL(oglContext);
}
} // namespace cvf