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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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44
Telegram/SourceFiles/window/window_session_controller.cpp
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@@ -1318,17 +1318,15 @@ void SessionController::openDocument(
session().data().message(contextId));
}
CachedBackground SessionController::cachedBackground(QRect area) {
if (!_cachedBackground.pixmap.isNull()
&& area == _cachedBackground.area) {
return _cachedBackground;
CachedBackground SessionController::cachedBackground(QSize area) {
if (_cachedBackground.area != area) {
if (_willCacheForArea != area || !_cacheBackgroundTimer.isActive()) {
_willCacheForArea = area;
_lastAreaChangeTime = crl::now();
_cacheBackgroundTimer.callOnce(kCacheBackgroundFastTimeout);
}
}
if (_willCacheForArea != area || !_cacheBackgroundTimer.isActive()) {
_willCacheForArea = area;
_lastAreaChangeTime = crl::now();
_cacheBackgroundTimer.callOnce(kCacheBackgroundFastTimeout);
}
return {};
return _cachedBackground;
}
void SessionController::cacheBackground() {
@@ -1348,10 +1346,10 @@ void SessionController::cacheBackground() {
if (background->tile() || bg.isNull()) {
auto result = gradient.isNull()
? QImage(
_willCacheForArea.size() * cIntRetinaFactor(),
_willCacheForArea * cIntRetinaFactor(),
QImage::Format_ARGB32_Premultiplied)
: gradient.scaled(
_willCacheForArea.size() * cIntRetinaFactor(),
_willCacheForArea * cIntRetinaFactor(),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
result.setDevicePixelRatio(cRetinaFactor());
@@ -1379,15 +1377,12 @@ void SessionController::cacheBackground() {
.area = _willCacheForArea,
};
} else {
QRect to, from;
Window::Theme::ComputeBackgroundRects(
const auto rects = Window::Theme::ComputeBackgroundRects(
_willCacheForArea,
bg.size(),
to,
from);
auto image = bg.toImage().copy(from).scaled(
to.width() * cIntRetinaFactor(),
to.height() * cIntRetinaFactor(),
bg.size());
auto image = bg.toImage().copy(rects.from).scaled(
rects.to.width() * cIntRetinaFactor(),
rects.to.height() * cIntRetinaFactor(),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
auto result = gradient.isNull()
@@ -1401,16 +1396,19 @@ void SessionController::cacheBackground() {
QPainter p(&result);
p.setCompositionMode(QPainter::CompositionMode_SoftLight);
p.setOpacity(patternOpacity);
p.drawImage(QRect(QPoint(), to.size()), image);
p.drawImage(QRect(QPoint(), rects.to.size()), image);
}
image = QImage();
_cachedBackground = {
.pixmap = Ui::PixmapFromImage(std::move(result)),
.area = _willCacheForArea,
.x = to.x(),
.y = to.y(),
.x = rects.to.x(),
.y = rects.to.y(),
};
}
if (!gradient.isNull()) {
content()->update();
}
}
void SessionController::clearCachedBackground() {