123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2008 Martin Gräßlin <ubuntu@martin-graesslin.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "cube.h"
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#include "cylinder.h"
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#include <kdebug.h>
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#include <KStandardDirs>
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#include <math.h>
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#include <GL/gl.h>
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namespace KWin
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{
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KWIN_EFFECT( cylinder, CylinderEffect )
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CylinderEffect::CylinderEffect()
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: CubeEffect()
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, mInited( false )
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, mValid( true )
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, mShader( 0 )
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{
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}
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CylinderEffect::~CylinderEffect()
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{
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delete mShader;
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}
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bool CylinderEffect::loadData()
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{
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mInited = true;
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QString fragmentshader = KGlobal::dirs()->findResource("data", "kwin/cylinder.frag");
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QString vertexshader = KGlobal::dirs()->findResource("data", "kwin/cylinder.vert");
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if(fragmentshader.isEmpty() || vertexshader.isEmpty())
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{
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kError() << "Couldn't locate shader files" << endl;
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return false;
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}
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mShader = new GLShader(vertexshader, fragmentshader);
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if(!mShader->isValid())
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{
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kError() << "The shader failed to load!" << endl;
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return false;
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}
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else
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{
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mShader->bind();
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mShader->setUniform( "winTexture", 0 );
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mShader->setUniform( "opacity", cubeOpacity );
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QRect rect = effects->clientArea( FullArea, effects->activeScreen(), effects->currentDesktop());
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mShader->setUniform( "width", (float)rect.width() );
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mShader->setUniform( "origWidth", (float) (2.0 * xmax * ( zNear*2+1 + 1.0f * 0.8f ) * tan( fovy * M_PI / 360.0f )/ymax) );
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mShader->unbind();
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}
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return true;
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}
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void CylinderEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
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{
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if( activated )
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{
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if( cube_painting )
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{
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if( w->isOnDesktop( painting_desktop ))
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{
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data.quads = data.quads.makeGrid( 40 );
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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else
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{
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w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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}
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}
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effects->prePaintWindow( w, data, time );
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}
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void CylinderEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
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{
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if( activated && cube_painting )
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{
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if( mValid && !mInited )
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mValid = loadData();
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bool useShader = mValid;
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if( useShader )
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{
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mShader->bind();
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mShader->setUniform( "windowWidth", (float)w->width() );
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mShader->setUniform( "windowHeight", (float)w->height() );
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mShader->setUniform( "xCoord", (float)w->x() );
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mShader->setUniform( "cubeAngle", (effects->numberOfDesktops() - 2 )/(float)effects->numberOfDesktops() * 180.0f );
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data.shader = mShader;
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}
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CubeEffect::paintWindow( w, mask, region, data );
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if( useShader )
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{
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mShader->unbind();
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}
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}
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else
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effects->paintWindow( w, mask, region, data );
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}
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} // namespace
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