[effects/backgroundcontrast] Calculate correct y-coord of the copy rect

Summary: For more details, see D12452.

Reviewers: #kwin, davidedmundson, fredrik, mart

Reviewed By: #kwin, davidedmundson, mart

Subscribers: romangg, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D12466
This commit is contained in:
Vlad Zagorodniy 2018-05-17 02:51:50 -07:00 committed by David Edmundson
parent 184b490c78
commit 309a77eedf

View file

@ -450,7 +450,7 @@ void ContrastEffect::doContrast(EffectWindow *w, const QRegion& shape, const QRe
scratch.bind();
const QRect sg = GLRenderTarget::virtualScreenGeometry();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, (r.x() - sg.x()) * scale, (sg.height() - sg.y() - r.y() - r.height()) * scale,
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, (r.x() - sg.x()) * scale, (sg.height() - (r.y() - sg.y() + r.height())) * scale,
scratch.width(), scratch.height());
// Draw the texture on the offscreen framebuffer object, while blurring it horizontally