mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-24 04:20:46 +08:00
111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
|
|
|
|
#include <qtest.h>
|
|
#include <QImage>
|
|
|
|
class tst_QImageScale : public QObject
|
|
{
|
|
Q_OBJECT
|
|
private slots:
|
|
void scaleRgb32_data();
|
|
void scaleRgb32();
|
|
|
|
void scaleArgb32pm_data();
|
|
void scaleArgb32pm();
|
|
|
|
private:
|
|
QImage generateImageRgb32(int width, int height);
|
|
QImage generateImageArgb32(int width, int height);
|
|
};
|
|
|
|
void tst_QImageScale::scaleRgb32_data()
|
|
{
|
|
QTest::addColumn<QImage>("inputImage");
|
|
QTest::addColumn<QSize>("outputSize");
|
|
|
|
QImage image = generateImageRgb32(1000, 1000);
|
|
QTest::newRow("1000x1000 -> 2000x2000") << image << QSize(2000, 2000);
|
|
QTest::newRow("1000x1000 -> 2000x1000") << image << QSize(2000, 1000);
|
|
QTest::newRow("1000x1000 -> 1000x2000") << image << QSize(1000, 2000);
|
|
QTest::newRow("1000x1000 -> 2000x500") << image << QSize(2000, 500);
|
|
QTest::newRow("1000x1000 -> 500x2000") << image << QSize(500, 2000);
|
|
QTest::newRow("1000x1000 -> 500x500") << image << QSize(500, 500);
|
|
QTest::newRow("1000x1000 -> 200x200") << image << QSize(200, 200);
|
|
}
|
|
|
|
void tst_QImageScale::scaleRgb32()
|
|
{
|
|
QFETCH(QImage, inputImage);
|
|
QFETCH(QSize, outputSize);
|
|
|
|
QBENCHMARK {
|
|
volatile QImage output = inputImage.scaled(outputSize, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
|
|
// we need the volatile and the following to make sure the compiler does not do
|
|
// anything stupid :)
|
|
(void)output;
|
|
}
|
|
}
|
|
|
|
void tst_QImageScale::scaleArgb32pm_data()
|
|
{
|
|
QTest::addColumn<QImage>("inputImage");
|
|
QTest::addColumn<QSize>("outputSize");
|
|
|
|
QImage image = generateImageArgb32(1000, 1000).convertToFormat(QImage::Format_ARGB32_Premultiplied);
|
|
QTest::newRow("1000x1000 -> 2000x2000") << image << QSize(2000, 2000);
|
|
QTest::newRow("1000x1000 -> 2000x1000") << image << QSize(2000, 1000);
|
|
QTest::newRow("1000x1000 -> 1000x2000") << image << QSize(1000, 2000);
|
|
QTest::newRow("1000x1000 -> 2000x500") << image << QSize(2000, 500);
|
|
QTest::newRow("1000x1000 -> 500x2000") << image << QSize(500, 2000);
|
|
QTest::newRow("1000x1000 -> 500x500") << image << QSize(500, 500);
|
|
QTest::newRow("1000x1000 -> 200x200") << image << QSize(200, 200);
|
|
}
|
|
|
|
void tst_QImageScale::scaleArgb32pm()
|
|
{
|
|
QFETCH(QImage, inputImage);
|
|
QFETCH(QSize, outputSize);
|
|
|
|
QBENCHMARK {
|
|
volatile QImage output = inputImage.scaled(outputSize, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
|
|
// we need the volatile and the following to make sure the compiler does not do
|
|
// anything stupid :)
|
|
(void)output;
|
|
}
|
|
}
|
|
|
|
/*
|
|
Fill a RGB32 image with "random" pixel values.
|
|
*/
|
|
QImage tst_QImageScale::generateImageRgb32(int width, int height)
|
|
{
|
|
QImage image(width, height, QImage::Format_RGB32);
|
|
|
|
for (int y = 0; y < image.height(); ++y) {
|
|
QRgb *scanline = (QRgb*)image.scanLine(y);
|
|
for (int x = 0; x < width; ++x)
|
|
scanline[x] = qRgb(x, y, x ^ y);
|
|
}
|
|
return image;
|
|
}
|
|
|
|
/*
|
|
Fill a ARGB32 image with "random" pixel values.
|
|
*/
|
|
QImage tst_QImageScale::generateImageArgb32(int width, int height)
|
|
{
|
|
QImage image(width, height, QImage::Format_ARGB32);
|
|
const int byteWidth = width * 4;
|
|
|
|
for (int y = 0; y < image.height(); ++y) {
|
|
uchar *scanline = image.scanLine(y);
|
|
for (int x = 0; x < byteWidth; ++x)
|
|
scanline[x] = x ^ y;
|
|
}
|
|
return image;
|
|
}
|
|
|
|
QTEST_MAIN(tst_QImageScale)
|
|
#include "tst_qimagescale.moc"
|