351 lines
12 KiB
C++
351 lines
12 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) 2007 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.com>
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Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.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 "logout.h"
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#include "kwinglutils.h"
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#include <math.h>
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#include <kconfiggroup.h>
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#include <kdebug.h>
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namespace KWin
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{
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KWIN_EFFECT( logout, LogoutEffect )
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LogoutEffect::LogoutEffect()
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: progress( 0.0 )
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, logoutWindow( NULL )
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, logoutWindowClosed( true )
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, logoutWindowPassed( false )
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{
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char net_wm_cm_name[ 100 ];
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sprintf( net_wm_cm_name, "_NET_WM_CM_S%d", DefaultScreen( display()));
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Atom net_wm_cm = XInternAtom( display(), net_wm_cm_name, False );
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Window sel = XGetSelectionOwner( display(), net_wm_cm );
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Atom hack = XInternAtom( display(), "_KWIN_LOGOUT_EFFECT", False );
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XChangeProperty( display(), sel, hack, hack, 8, PropModeReplace, (unsigned char*)&hack, 1 );
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// the atom is not removed when effect is destroyed, this is temporary anyway
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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blurTexture = NULL;
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blurTarget = NULL;
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#endif
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reconfigure( ReconfigureAll );
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}
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LogoutEffect::~LogoutEffect()
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{
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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delete blurTexture;
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delete blurTarget;
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#endif
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}
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void LogoutEffect::reconfigure( ReconfigureFlags )
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{
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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frameDelay = 0;
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KConfigGroup conf = effects->effectConfig( "Logout" );
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useBlur = conf.readEntry( "UseBlur", true );
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delete blurTexture;
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blurTexture = NULL;
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delete blurTarget;
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blurTarget = NULL;
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blurSupported = false;
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#endif
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}
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void LogoutEffect::prePaintScreen( ScreenPrePaintData& data, int time )
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{
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if( !logoutWindow && progress == 0.0 )
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{
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if( blurTexture )
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{
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delete blurTexture;
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blurTexture = NULL;
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delete blurTarget;
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blurTarget = NULL;
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blurSupported = false;
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}
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}
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else if( !blurTexture )
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{
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blurSupported = false;
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delete blurTarget; // catch as we just tested the texture ;-P
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if( effects->compositingType() == OpenGLCompositing && GLTexture::NPOTTextureSupported() && useBlur )
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{ // TODO: It seems that it is not possible to create a GLRenderTarget that has
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// a different size than the display right now. Most likely a KWin core bug.
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// Create texture and render target
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blurTexture = new GLTexture( displayWidth(), displayHeight() );
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blurTexture->setFilter( GL_LINEAR_MIPMAP_LINEAR );
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blurTexture->setWrapMode( GL_CLAMP_TO_EDGE );
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blurTarget = new GLRenderTarget( blurTexture );
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if( blurTarget->valid() )
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blurSupported = true;
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// As creating the render target takes time it can cause the first two frames of the
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// blur animation to be jerky. For this reason we only start the animation after the
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// third frame.
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frameDelay = 2;
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}
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}
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if( frameDelay )
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--frameDelay;
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else
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#endif
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{
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if( logoutWindow != NULL && !logoutWindowClosed )
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progress = qMin( 1.0, progress + time / animationTime( 2000.0 ));
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else if( progress > 0.0 )
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progress = qMax( 0.0, progress - time / animationTime( 500.0 ));
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}
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if( blurSupported && progress > 0.0 )
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{
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data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
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}
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#endif
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effects->prePaintScreen( data, time );
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}
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void LogoutEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
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{
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if( progress > 0.0 )
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{
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if( blurSupported && w == logoutWindow )
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{
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windowOpacity = data.opacity;
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data.opacity = 0.0; // Cheat, we need the opacity for later but don't want to blur it
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}
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else
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{
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if( w != logoutWindow && !logoutWindowPassed )
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{
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if( blurSupported )
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data.saturation *= ( 1.0 - progress * 0.2 );
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else
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{
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data.saturation *= ( 1.0 - progress * 0.8 );
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data.brightness *= ( 1.0 - progress * 0.3 );
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}
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}
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if( blurSupported && logoutWindowPassed )
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{
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windows.append( w );
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windowsOpacities[ w ] = data.opacity;
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data.opacity = 0.0;
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}
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}
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#else
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if( w != logoutWindow && !logoutWindowPassed )
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{
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data.saturation *= ( 1.0 - progress * 0.8 );
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data.brightness *= ( 1.0 - progress * 0.3 );
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}
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#endif
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if( w == logoutWindow )
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{
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// logout window - all following windows are on top and should not be altered
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logoutWindowPassed = true;
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}
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}
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effects->paintWindow( w, mask, region, data );
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}
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void LogoutEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
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{
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if( blurSupported && progress > 0.0 )
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{
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effects->pushRenderTarget( blurTarget );
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}
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#endif
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effects->paintScreen( mask, region, data );
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if( blurSupported && progress > 0.0 )
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{
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GLRenderTarget* target = effects->popRenderTarget();
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assert( target == blurTarget );
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Q_UNUSED( target );
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//--------------------------
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// Render the screen effect
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glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT | GL_TEXTURE_BIT );
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// Unmodified base image
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blurTexture->bind();
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glBegin( GL_QUADS );
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glTexCoord2f( 0.0, 0.0 );
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glVertex2f( 0.0, displayHeight() );
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glTexCoord2f( 1.0, 0.0 );
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glVertex2f( displayWidth(), displayHeight() );
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glTexCoord2f( 1.0, 1.0 );
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glVertex2f( displayWidth(), 0.0 );
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glTexCoord2f( 0.0, 1.0 );
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glVertex2f( 0.0, 0.0 );
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glEnd();
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// Blurred image
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GLfloat bias[1];
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glGetTexEnvfv( GL_TEXTURE_FILTER_CONTROL, GL_TEXTURE_LOD_BIAS, bias );
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glTexEnvf( GL_TEXTURE_FILTER_CONTROL, GL_TEXTURE_LOD_BIAS, 1.75 );
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glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
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glEnable( GL_BLEND );
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glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
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glColor4f( 1.0f, 1.0f, 1.0f, progress * 0.4 );
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glBegin( GL_QUADS );
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glTexCoord2f( 0.0, 0.0 );
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glVertex2f( 0.0, displayHeight() );
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glTexCoord2f( 1.0, 0.0 );
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glVertex2f( displayWidth(), displayHeight() );
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glTexCoord2f( 1.0, 1.0 );
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glVertex2f( displayWidth(), 0.0 );
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glTexCoord2f( 0.0, 1.0 );
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glVertex2f( 0.0, 0.0 );
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glEnd();
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glTexEnvf( GL_TEXTURE_FILTER_CONTROL, GL_TEXTURE_LOD_BIAS, bias[0] );
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blurTexture->unbind();
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// Vignetting (Radial gradient with transparent middle and black edges)
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for( int screen = 0; screen < effects->numScreens(); screen++ )
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{ // TODO: Cache
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QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
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glScissor( screenGeom.x(), displayHeight() - screenGeom.y() - screenGeom.height(),
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screenGeom.width(), screenGeom.height() ); // GL coords are flipped
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glEnable( GL_SCISSOR_TEST ); // Geom must be set before enable
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float ro = float(( screenGeom.width() > screenGeom.height() )
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? screenGeom.width() : screenGeom.height() ) * 0.8f; // Outer radius
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glBegin( GL_TRIANGLES );
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const float a = M_PI / 8.0f; // Angle of increment
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for( float i = 0.0f; i < M_PI * 1.99f; i += a )
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{
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float x, y;
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glColor4f( 0.0f, 0.0f, 0.0f, 0.0f );
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x = screenGeom.x() + screenGeom.width() / 2;
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y = screenGeom.y() + screenGeom.height() / 2;
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glVertex3f( x, y, 0 );
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glColor4f( 0.0f, 0.0f, 0.0f, progress * 0.9f );
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x = ro * cos( i ) + screenGeom.x() + screenGeom.width() / 2;
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y = ro * sin( i ) + screenGeom.y() + screenGeom.height() / 2;
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glVertex3f( x, y, 0 );
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x = ro * cos( i + a ) + screenGeom.x() + screenGeom.width() / 2;
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y = ro * sin( i + a ) + screenGeom.y() + screenGeom.height() / 2;
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glVertex3f( x, y, 0 );
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}
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glEnd();
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glDisable( GL_SCISSOR_TEST );
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}
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glPopAttrib();
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//--------------------------
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// Render the logout window
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if( logoutWindow )
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{
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int winMask = logoutWindow->hasAlpha() ? PAINT_WINDOW_TRANSLUCENT : PAINT_WINDOW_OPAQUE;
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WindowPaintData winData( logoutWindow );
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winData.opacity = windowOpacity;
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effects->drawWindow( logoutWindow, winMask, region, winData );
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}
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// Render all windows on top of logout window
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foreach( EffectWindow* w, windows )
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{
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int winMask = w->hasAlpha() ? PAINT_WINDOW_TRANSLUCENT : PAINT_WINDOW_OPAQUE;
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WindowPaintData winData( w );
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winData.opacity = windowsOpacities[ w ];
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effects->drawWindow( w, winMask, region, winData );
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}
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windows.clear();
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windowsOpacities.clear();
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}
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#endif
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}
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void LogoutEffect::postPaintScreen()
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{
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if(( progress != 0.0 && progress != 1.0 ) || frameDelay )
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effects->addRepaintFull();
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#else
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if( progress != 0.0 && progress != 1.0 )
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effects->addRepaintFull();
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#endif
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if( progress > 0.0 )
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logoutWindowPassed = false;
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effects->postPaintScreen();
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}
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void LogoutEffect::windowAdded( EffectWindow* w )
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{
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if( isLogoutDialog( w ))
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{
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logoutWindow = w;
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logoutWindowClosed = false; // So we don't blur the window on close
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progress = 0.0;
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effects->addRepaintFull();
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}
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}
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void LogoutEffect::windowClosed( EffectWindow* w )
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{
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if( w == logoutWindow )
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{
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logoutWindowClosed = true;
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effects->addRepaintFull();
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}
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}
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void LogoutEffect::windowDeleted( EffectWindow* w )
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{
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if( w == logoutWindow )
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logoutWindow = NULL;
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}
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bool LogoutEffect::isLogoutDialog( EffectWindow* w )
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{ // TODO there should be probably a better way (window type?)
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if( w->windowClass() == "ksmserver ksmserver"
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&& ( w->windowRole() == "logoutdialog" || w->windowRole() == "logouteffect" ))
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{
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return true;
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}
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return false;
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}
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} // namespace
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