yukijoou/kwin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Optimize logout vignetting and increase its resolution.

Browse source 
svn path=/trunk/KDE/kdebase/workspace/; revision=1051774
This commit is contained in:
Lucas Murray 2009-11-20 06:09:15 +00:00
parent d5d0e8762a
commit 1b80aec136
1 changed files with 12 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
effects/logout/logout.cpp
View file

@ -236,35 +236,22 @@ void LogoutEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data
// Vignetting (Radial gradient with transparent middle and black edges) // Vignetting (Radial gradient with transparent middle and black edges)
for( int screen = 0; screen < effects->numScreens(); screen++ ) for( int screen = 0; screen < effects->numScreens(); screen++ )
{ // TODO: Cache {
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 ); QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
glScissor( screenGeom.x(), displayHeight() - screenGeom.y() - screenGeom.height(), glScissor( screenGeom.x(), displayHeight() - screenGeom.y() - screenGeom.height(),
screenGeom.width(), screenGeom.height() ); // GL coords are flipped screenGeom.width(), screenGeom.height() ); // GL coords are flipped
glEnable( GL_SCISSOR_TEST ); // Geom must be set before enable glEnable( GL_SCISSOR_TEST ); // Geom must be set before enable
float ro = float(( screenGeom.width() > screenGeom.height() ) const float cenX = screenGeom.x() + screenGeom.width() / 2;
? screenGeom.width() : screenGeom.height() ) * 0.8f; // Outer radius const float cenY = screenGeom.y() + screenGeom.height() / 2;
glBegin( GL_TRIANGLES ); const float a = M_PI / 16.0f; // Angle of increment
const float a = M_PI / 8.0f; // Angle of increment const float r = float(( screenGeom.width() > screenGeom.height() )
for( float i = 0.0f; i < M_PI * 1.99f; i += a ) ? screenGeom.width() : screenGeom.height() ) * 0.8f; // Radius
{ glBegin( GL_TRIANGLE_FAN );
float x, y; glColor4f( 0.0f, 0.0f, 0.0f, 0.0f );
glVertex3f( cenX, cenY, 0.0f );
glColor4f( 0.0f, 0.0f, 0.0f, 0.0f ); glColor4f( 0.0f, 0.0f, 0.0f, progress * 0.9f );
for( float i = 0.0f; i <= M_PI * 2.01f; i += a )
x = screenGeom.x() + screenGeom.width() / 2; glVertex3f( cenX + r * cos( i ), cenY + r * sin( i ), 0.0f );
y = screenGeom.y() + screenGeom.height() / 2;
glVertex3f( x, y, 0 );
glColor4f( 0.0f, 0.0f, 0.0f, progress * 0.9f );
x = ro * cos( i ) + screenGeom.x() + screenGeom.width() / 2;
y = ro * sin( i ) + screenGeom.y() + screenGeom.height() / 2;
glVertex3f( x, y, 0 );
x = ro * cos( i + a ) + screenGeom.x() + screenGeom.width() / 2;
y = ro * sin( i + a ) + screenGeom.y() + screenGeom.height() / 2;
glVertex3f( x, y, 0 );
}
glEnd(); glEnd();
glDisable( GL_SCISSOR_TEST ); glDisable( GL_SCISSOR_TEST );
} }