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Use bigger quads for desktops in the rear, so that less vertices have to be processed by cylinder and sphere shader. That should improve the performance without influencing the visual appearance.

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svn path=/trunk/KDE/kdebase/workspace/; revision=930495
This commit is contained in:
Martin Gräßlin 2009-02-23 17:03:27 +00:00
parent d4f16a8dca
commit c016f07738
1 changed files with 36 additions and 10 deletions
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46
effects/cube/cube.cpp
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@ -1278,7 +1278,20 @@ void CubeEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int
if( cube_painting )
{
if( mode == Cylinder || mode == Sphere )
data.quads = data.quads.makeGrid( 40 );
{
int leftDesktop = frontDesktop -1;
int rightDesktop = frontDesktop + 1;
if( leftDesktop == 0 )
leftDesktop = effects->numberOfDesktops();
if( rightDesktop > effects->numberOfDesktops() )
rightDesktop = 1;
if( painting_desktop == frontDesktop )
data.quads = data.quads.makeGrid( 40 );
else if( painting_desktop == leftDesktop || painting_desktop == rightDesktop )
data.quads = data.quads.makeGrid( 100 );
else
data.quads = data.quads.makeGrid( 250 );
}
if( ( w->isDesktop() || w->isDock() ) && w->screen() != activeScreen && w->isOnDesktop( effects->currentDesktop() ) )
{
windowsOnOtherScreens.append( w );
@ -1599,19 +1612,32 @@ void CubeEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowP
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glBegin( GL_QUADS );
float quadSize = 0.0f;
int leftDesktop = frontDesktop -1;
int rightDesktop = frontDesktop + 1;
if( leftDesktop == 0 )
leftDesktop = effects->numberOfDesktops();
if( rightDesktop > effects->numberOfDesktops() )
rightDesktop = 1;
if( painting_desktop == frontDesktop )
quadSize = 100.0f;
else if( painting_desktop == leftDesktop || painting_desktop == rightDesktop )
quadSize = 150.0f;
else
quadSize = 250.0f;
foreach( QRect paintRect, paint.rects() )
{
for( int i=0; i<=(paintRect.height()/40.0); i++ )
for( int i=0; i<=(paintRect.height()/quadSize); i++ )
{
for( int j=0; j<=(paintRect.width()/40.0); j++ )
for( int j=0; j<=(paintRect.width()/quadSize); j++ )
{
glVertex2f( paintRect.x()+j*40.0f, paintRect.y()+i*40.0f );
glVertex2f( qMin( paintRect.x()+(j+1)*40.0f, (float)paintRect.x() + paintRect.width() ),
paintRect.y()+i*40.0f );
glVertex2f( qMin( paintRect.x()+(j+1)*40.0f, (float)paintRect.x() + paintRect.width() ),
qMin( paintRect.y() + (i+1)*40.0f, (float)paintRect.y() + paintRect.height() ) );
glVertex2f( paintRect.x()+j*40.0f,
qMin( paintRect.y() + (i+1)*40.0f, (float)paintRect.y() + paintRect.height() ) );
glVertex2f( paintRect.x()+j*quadSize, paintRect.y()+i*quadSize );
glVertex2f( qMin( paintRect.x()+(j+1)*quadSize, (float)paintRect.x() + paintRect.width() ),
paintRect.y()+i*quadSize );
glVertex2f( qMin( paintRect.x()+(j+1)*quadSize, (float)paintRect.x() + paintRect.width() ),
qMin( paintRect.y() + (i+1)*quadSize, (float)paintRect.y() + paintRect.height() ) );
glVertex2f( paintRect.x()+j*quadSize,
qMin( paintRect.y() + (i+1)*quadSize, (float)paintRect.y() + paintRect.height() ) );
}
}
}