Speedup optimization.

Cache watermark image geometry info.
This commit is contained in:
Roman Telezhynskyi 2024-05-02 10:17:39 +03:00
parent ae31bd9fdb
commit be1a8d15d0

View File

@ -22,8 +22,75 @@ QT_WARNING_DISABLE_CLANG("-Wunused-member-function")
Q_GLOBAL_STATIC_WITH_ARGS(QColor, tileColor, (180, 180, 180)) // NOLINT Q_GLOBAL_STATIC_WITH_ARGS(QColor, tileColor, (180, 180, 180)) // NOLINT
Q_GLOBAL_STATIC_WITH_ARGS(QBrush, triangleBush, (QColor(200, 200, 200))) // NOLINT Q_GLOBAL_STATIC_WITH_ARGS(QBrush, triangleBush, (QColor(200, 200, 200))) // NOLINT
struct WatermarkScaledImageInfo
{
qint64 scaledImageSize{-1};
int width{0};
int height{0};
};
using WatermarkScaledSize = QCache<QString, WatermarkScaledImageInfo>;
Q_GLOBAL_STATIC(WatermarkScaledSize, watermarkSizeCache) // NOLINT
QT_WARNING_POP QT_WARNING_POP
//---------------------------------------------------------------------------------------------------------------------
inline auto GenerateWatermarkScaledSizeCacheKey(const QString &watermarkPath, qreal xScale, qreal yScale) -> QString
{
return QStringLiteral("path%1+xscale%2+yscale%3")
.arg(watermarkPath, QString::number(xScale), QString::number(yScale));
}
//---------------------------------------------------------------------------------------------------------------------
void CalculateAndCacheWatermarkScaledImageSize(const VWatermarkData &watermarkData, const QString &watermarkPath,
qreal xScale, qreal yScale)
{
QString const imagePath = AbsoluteMPath(watermarkPath, watermarkData.path);
QImageReader imageReader(imagePath);
QImage const watermarkImage = imageReader.read();
qint64 scaledImageSize = -1;
if (!watermarkImage.isNull())
{
qint64 const fileSize = watermarkImage.sizeInBytes();
qint64 const pixelSize = fileSize / watermarkImage.height() / watermarkImage.width();
QSize const scaledSize(qRound(watermarkImage.width() / xScale), qRound(watermarkImage.height() / yScale));
scaledImageSize = pixelSize * scaledSize.width() * scaledSize.height() / 1024;
}
auto *info = new WatermarkScaledImageInfo;
info->scaledImageSize = scaledImageSize;
info->width = watermarkImage.width();
info->height = watermarkImage.height();
// Insert into the cache
watermarkSizeCache->insert(GenerateWatermarkScaledSizeCacheKey(watermarkPath, xScale, yScale), info);
}
//---------------------------------------------------------------------------------------------------------------------
auto GetWatermarkScaledImageInfo(const VWatermarkData &watermarkData, const QString &watermarkPath, qreal xScale,
qreal yScale) -> WatermarkScaledImageInfo
{
// Check if the value is already cached
WatermarkScaledImageInfo *info =
watermarkSizeCache->object(GenerateWatermarkScaledSizeCacheKey(watermarkPath, xScale, yScale));
if (info != nullptr)
{
return *info;
}
// If not cached, calculate and cache the value
CalculateAndCacheWatermarkScaledImageSize(watermarkData, watermarkPath, xScale, yScale);
// Retrieve the calculated value from the cache
info = watermarkSizeCache->object(GenerateWatermarkScaledSizeCacheKey(watermarkPath, xScale, yScale));
if (info != nullptr)
{
return *info;
}
return {}; // Return an error value if caching failed
}
//--------------------------------------------------------------------------------------------------------------------- //---------------------------------------------------------------------------------------------------------------------
auto Grayscale(QImage image) -> QImage auto Grayscale(QImage image) -> QImage
{ {
@ -718,13 +785,10 @@ void VPTileFactory::PaintWatermarkImage(QPainter *painter, const QRectF &img, co
return watermark; return watermark;
}; };
QString const imagePath = AbsoluteMPath(watermarkPath, watermarkData.path); WatermarkScaledImageInfo const watermarkImageInfo =
QFileInfo const f(imagePath); GetWatermarkScaledImageInfo(watermarkData, watermarkPath, xScale, yScale);
QImageReader imageReader(imagePath); if (watermarkImageInfo.scaledImageSize == -1)
QImage const watermarkImage = imageReader.read();
if (watermarkImage.isNull())
{ {
if (QPixmap const watermarkPixmap = BrokenImage(); if (QPixmap const watermarkPixmap = BrokenImage();
watermarkPixmap.width() < img.width() && watermarkPixmap.height() < img.height()) watermarkPixmap.width() < img.width() && watermarkPixmap.height() < img.height())
@ -741,12 +805,8 @@ void VPTileFactory::PaintWatermarkImage(QPainter *painter, const QRectF &img, co
return; return;
} }
qint64 const fileSize = watermarkImage.sizeInBytes(); if (int const limit = QPixmapCache::cacheLimit();
qint64 const pixelSize = fileSize / watermarkImage.height() / watermarkImage.width(); watermarkImageInfo.scaledImageSize > limit && (xScale < 1 || yScale < 1))
QSize const scaledSize(qRound(watermarkImage.width() / xScale), qRound(watermarkImage.height() / yScale));
qint64 const scaledImageSize = pixelSize * scaledSize.width() * scaledSize.height() / 1024;
if (int const limit = QPixmapCache::cacheLimit(); scaledImageSize > limit && (xScale < 1 || yScale < 1))
{ {
QScopedPointer<QSvgRenderer> const svgRenderer(new QSvgRenderer()); QScopedPointer<QSvgRenderer> const svgRenderer(new QSvgRenderer());
@ -756,12 +816,13 @@ void VPTileFactory::PaintWatermarkImage(QPainter *painter, const QRectF &img, co
QString const grayscale = watermarkData.grayscale ? QStringLiteral("_grayscale") : QString(); QString const grayscale = watermarkData.grayscale ? QStringLiteral("_grayscale") : QString();
svgRenderer->load(QStringLiteral("://puzzleicon/svg/watermark_placeholder%1.svg").arg(grayscale)); svgRenderer->load(QStringLiteral("://puzzleicon/svg/watermark_placeholder%1.svg").arg(grayscale));
QRect imageRect(0, 0, qRound(watermarkImage.width() / xScale), qRound(watermarkImage.height() / yScale)); QRect imageRect(0, 0, qRound(watermarkImageInfo.width / xScale), qRound(watermarkImageInfo.height / yScale));
imageRect.translate(img.center().toPoint() - imageRect.center()); imageRect.translate(img.center().toPoint() - imageRect.center());
svgRenderer->render(painter, imageRect); svgRenderer->render(painter, imageRect);
return; return;
} }
QFileInfo const f(AbsoluteMPath(watermarkPath, watermarkData.path));
QPixmap watermark; QPixmap watermark;
if (f.suffix() == "png"_L1 || f.suffix() == "jpg"_L1 || f.suffix() == "jpeg"_L1 || f.suffix() == "bmp"_L1) if (f.suffix() == "png"_L1 || f.suffix() == "jpg"_L1 || f.suffix() == "jpeg"_L1 || f.suffix() == "bmp"_L1)
{ {