https://bugs.kde.org/show_bug.cgi?id=409762
--- Comment #10 from Méven Car <meve...@gmail.com> ---
I believe the fix needs to be made in
kwin/effects/screenshot/screenshot.cpp:607 :
QImage ScreenShotEffect::blitScreenshot(const QRect &geometry)
{
QImage img;
if (effects->isOpenGLCompositing())
{
img = QImage(geometry.size(), QImage::Format_ARGB32);
if (GLRenderTarget::blitSupported() &&
!GLPlatform::instance()->isGLES()) {
GLTexture tex(GL_RGBA8, geometry.width(), geometry.height());
GLRenderTarget target(tex);
target.blitFromFramebuffer(geometry);
// copy content from framebuffer into image
tex.bind();
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE,
(GLvoid*)img.bits());
tex.unbind();
} else {
glReadPixels(0, 0, img.width(), img.height(), GL_RGBA,
GL_UNSIGNED_BYTE, (GLvoid*)img.bits());
}
ScreenShotEffect::convertFromGLImage(img, geometry.width(),
geometry.height());
}
...
To have an output image whose output image is scaled up.
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