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XRender window scaling, based on a patch by Philip Falkner.

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svn path=/branches/work/kwin_composite/; revision=610133
This commit is contained in:
Luboš Luňák 2006-12-03 13:32:52 +00:00
parent ab8d845718
commit db18481380
1 changed files with 26 additions and 3 deletions
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29
scene_xrender.cpp
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@ -355,6 +355,8 @@ void SceneXrender::Window::performPaint( int mask, QRegion region, WindowPaintDa
// do required transformations // do required transformations
int x = toplevel->x(); int x = toplevel->x();
int y = toplevel->y(); int y = toplevel->y();
int width = toplevel->width();
int height = toplevel->height();
if( mask & PAINT_SCREEN_TRANSFORMED ) if( mask & PAINT_SCREEN_TRANSFORMED )
{ {
x += screen_paint.xTranslate; x += screen_paint.xTranslate;
@ -365,17 +367,38 @@ void SceneXrender::Window::performPaint( int mask, QRegion region, WindowPaintDa
x += data.xTranslate; x += data.xTranslate;
y += data.yTranslate; y += data.yTranslate;
} }
// TODO xScale,yScale bool transform = false;
if(( mask & PAINT_WINDOW_TRANSFORMED ) && ( data.xScale != 1 || data.yScale != 1 ))
{
XTransform xform = {{
{ XDoubleToFixed( 1 / data.xScale ), XDoubleToFixed( 0 ), XDoubleToFixed( 0 ) },
{ XDoubleToFixed( 0 ), XDoubleToFixed( 1 / data.yScale ), XDoubleToFixed( 0 ) },
{ XDoubleToFixed( 0 ), XDoubleToFixed( 0 ), XDoubleToFixed( 1 ) }
}};
XRenderSetPictureTransform( display(), pic, &xform );
width = (int)(width * data.xScale);
height = (int)(height * data.yScale);
transform = true;
}
if( opaque ) if( opaque )
{ {
XRenderComposite( display(), PictOpSrc, pic, None, buffer, 0, 0, 0, 0, XRenderComposite( display(), PictOpSrc, pic, None, buffer, 0, 0, 0, 0,
x, y, toplevel->width(), toplevel->height()); x, y, width, height);
} }
else else
{ {
Picture alpha = alphaMask( data.opacity ); Picture alpha = alphaMask( data.opacity );
XRenderComposite( display(), PictOpOver, pic, alpha, buffer, 0, 0, 0, 0, XRenderComposite( display(), PictOpOver, pic, alpha, buffer, 0, 0, 0, 0,
x, y, toplevel->width(), toplevel->height()); x, y, width, height);
}
if( transform )
{
XTransform xform = {{
{ XDoubleToFixed( 1 ), XDoubleToFixed( 0 ), XDoubleToFixed( 0 ) },
{ XDoubleToFixed( 0 ), XDoubleToFixed( 1 ), XDoubleToFixed( 0 ) },
{ XDoubleToFixed( 0 ), XDoubleToFixed( 0 ), XDoubleToFixed( 1 ) }
}};
XRenderSetPictureTransform( display(), pic, &xform );
} }
XFixesSetPictureClipRegion( display(), buffer, 0, 0, None ); XFixesSetPictureClipRegion( display(), buffer, 0, 0, None );
} }