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Code Issues Releases Wiki Activity

Don't blend SoftLight patterns in realtime.

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This commit is contained in:
John Preston
2021-08-13 20:19:06 +03:00
parent 2b46f87d7b
commit b9a9520ef5
7 changed files with 92 additions and 59 deletions
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24
Telegram/SourceFiles/window/themes/window_theme.cpp
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@@ -1494,27 +1494,31 @@ QImage PreprocessBackgroundImage(QImage image) {
return image;
}
void ComputeBackgroundRects(QRect wholeFill, QSize imageSize, QRect &to, QRect &from) {
if (uint64(imageSize.width()) * wholeFill.height() > uint64(imageSize.height()) * wholeFill.width()) {
float64 pxsize = wholeFill.height() / float64(imageSize.height());
int takewidth = qCeil(wholeFill.width() / pxsize);
BackgroundRects ComputeBackgroundRects(QSize fillSize, QSize imageSize) {
if (uint64(imageSize.width()) * fillSize.height() > uint64(imageSize.height()) * fillSize.width()) {
float64 pxsize = fillSize.height() / float64(imageSize.height());
int takewidth = qCeil(fillSize.width() / pxsize);
if (takewidth > imageSize.width()) {
takewidth = imageSize.width();
} else if ((imageSize.width() % 2) != (takewidth % 2)) {
++takewidth;
}
to = QRect(int((wholeFill.width() - takewidth * pxsize) / 2.), 0, qCeil(takewidth * pxsize), wholeFill.height());
from = QRect((imageSize.width() - takewidth) / 2, 0, takewidth, imageSize.height());
return {
.from = QRect((imageSize.width() - takewidth) / 2, 0, takewidth, imageSize.height()),
.to = QRect(int((fillSize.width() - takewidth * pxsize) / 2.), 0, qCeil(takewidth * pxsize), fillSize.height()),
};
} else {
float64 pxsize = wholeFill.width() / float64(imageSize.width());
int takeheight = qCeil(wholeFill.height() / pxsize);
float64 pxsize = fillSize.width() / float64(imageSize.width());
int takeheight = qCeil(fillSize.height() / pxsize);
if (takeheight > imageSize.height()) {
takeheight = imageSize.height();
} else if ((imageSize.height() % 2) != (takeheight % 2)) {
++takeheight;
}
to = QRect(0, int((wholeFill.height() - takeheight * pxsize) / 2.), wholeFill.width(), qCeil(takeheight * pxsize));
from = QRect(0, (imageSize.height() - takeheight) / 2, imageSize.width(), takeheight);
return {
.from = QRect(0, (imageSize.height() - takeheight) / 2, imageSize.width(), takeheight),
.to = QRect(0, int((fillSize.height() - takeheight * pxsize) / 2.), fillSize.width(), qCeil(takeheight * pxsize)),
};
}
}