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snorenotify
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Speednup background computation

This commit is contained in:
Patrick von Reth 2015-09-21 18:28:03 +02:00
parent a256dd3ed5
commit 553a7a0bb2
1 changed files with 9 additions and 11 deletions
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20
src/plugins/backends/snore/notifywidget.cpp
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@ -186,21 +186,19 @@ void NotifyWidget::slotInvoked()
QColor NotifyWidget::computeBackgrondColor(const QImage &img)
{
int stepSize = img.depth()/8;
qulonglong r = 0;
qulonglong g = 0;
qulonglong b = 0;
for (int x = 0; x < img.width(); ++x) {
for (int y = 0; y < img.height(); ++y) {
QRgb c = img.pixel(x, y);
r += qRed(c);
g += qGreen(c);
b += qBlue(c);
}
const uchar *end = img.constBits() + img.byteCount();
for (const uchar* bit = img.constBits(); bit != end; bit += stepSize ) {
const QRgb c = *reinterpret_cast<const QRgb*>(bit);
r += qRed(c);
g += qGreen(c);
b += qBlue(c);
}
int s = img.width() * img.height();
return QColor(r / s, g / s, b / s);
int size = img.byteCount()/stepSize;
return QColor(r / size, g / size, b / size);
}
QColor NotifyWidget::compueTextColor(const QColor &backgroundColor)