Equalizer  1.2.1
osgScaleViewer/channel.cpp
00001 
00002 /*
00003  * Copyright (c)
00004  *   2008-2009, Thomas McGuire <thomas.mcguire@student.uni-siegen.de>
00005  *   2010, Stefan Eilemann <eile@eyescale.ch>
00006  *   2010, Sarah Amsellem <sarah.amsellem@gmail.com>
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions are met:
00010  *
00011  * - Redistributions of source code must retain the above copyright notice, this
00012  *   list of conditions and the following disclaimer.
00013  * - Redistributions in binary form must reproduce the above copyright notice,
00014  *   this list of conditions and the following disclaimer in the documentation
00015  *   and/or other materials provided with the distribution.
00016  * - Neither the name of Eyescale Software GmbH nor the names of its
00017  *   contributors may be used to endorse or promote products derived from this
00018  *   software without specific prior written permission.
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00021  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00022  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00023  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00024  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00025  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00026  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00027  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00028  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00029  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00030  * POSSIBILITY OF SUCH DAMAGE.
00031  */
00032 
00033 #include "channel.h"
00034 
00035 #include "config.h"
00036 #include "pipe.h"
00037 #include "quad.h"
00038 #include "util.h"
00039 #include "window.h"
00040 
00041 #include <osg/MatrixTransform>
00042 #include <osg/Texture2D>
00043 
00044 namespace osgScaleViewer
00045 {
00046 
00047 Channel::Channel( eq::Window* parent )
00048     : eq::Channel( parent )
00049 {
00050 }
00051 
00052 
00053 void Channel::frameClear( const eq::uint128_t& frameID )
00054 {
00055     glEnable( GL_SCISSOR_TEST );
00056     eq::Channel::frameClear( frameID );
00057 }
00058 
00059 void Channel::frameDraw( const eq::uint128_t& frameID )
00060 {
00061     // setup OpenGL State
00062     eq::Channel::frameDraw( frameID );
00063 
00064     // - 2D viewport
00065     Window *window = static_cast< Window* >( getWindow( ));
00066     osg::ref_ptr< SceneView > view = window->getSceneView();
00067     
00068     const eq::PixelViewport& pvp = getPixelViewport();
00069     view->setViewport( pvp.x, pvp.y, pvp.w, pvp.h );
00070 
00071     // - Stereo
00072     view->setDrawBufferValue( getDrawBuffer( ));
00073     const eq::ColorMask& colorMask = getDrawBufferMask();
00074 
00075     osgUtil::RenderStage* stage = view->getRenderStage();
00076     osg::ref_ptr< osg::ColorMask > osgMask = stage->getColorMask();
00077     osgMask->setMask( colorMask.red, colorMask.green, colorMask.blue, true );
00078 
00079     // - Frustum (Projection matrix)
00080     const eq::Frustumf& frustum = getFrustum();
00081     view->setProjectionMatrixAsFrustum( 
00082         frustum.left(), frustum.right(), frustum.bottom(), frustum.top(),
00083         frustum.near_plane(), frustum.far_plane( ));
00084 
00085     // - Camera (Model Matrix)
00086     const Pipe *pipe = static_cast< const Pipe* >( getPipe( ));
00087     const FrameData& frameData = pipe->getFrameData();
00088     
00089     const eq::Vector3f position = frameData.getCameraPosition();
00090     const eq::Vector3f lookAt = frameData.getCameraLookAtPoint();
00091     const eq::Vector3f upVector = frameData.getCameraUpVector();
00092 
00093     const osg::Vec3f pos( position.x(), position.y(), position.z( ));
00094     const osg::Vec3f look( lookAt.x(), lookAt.y(), lookAt.z( ));
00095     const osg::Vec3f up( upVector.x(), upVector.y(), upVector.z( ));
00096   
00097     view->setViewMatrixAsLookAt( pos, look, up );
00098 
00099     // - Frustum position (View Matrix)
00100     osg::Matrix headView = view->getViewMatrix();
00101     headView.postMult( vmmlToOsg( getHeadTransform( )));
00102     view->setViewMatrix( headView );
00103 
00104     // - Render
00105     view->cull();
00106     view->draw();
00107 }
00108 
00109 void Channel::frameViewFinish( const eq::uint128_t& frameID )
00110 {
00111     const Pipe *pipe = static_cast< const Pipe* >( getPipe( ));
00112     const FrameData& frameData = pipe->getFrameData();
00113     if( !frameData.useStatistics( ))
00114         return;
00115 
00116     applyBuffer();
00117     applyViewport();
00118     drawStatistics();
00119 }
00120 
00121 }
Generated on Fri Jun 8 2012 15:44:29 for Equalizer 1.2.1 by  doxygen 1.8.0