mirror of
https://github.com/crystalidea/qt6windows7.git
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438 lines
19 KiB
C++
438 lines
19 KiB
C++
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <qtest.h>
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#include <QImage>
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Q_DECLARE_METATYPE(QImage::Format)
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class tst_QImageConversion : public QObject
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{
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Q_OBJECT
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private slots:
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void convertRgb888ToRgb32_data();
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void convertRgb888ToRgb32();
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void convertRgb888ToRgbx8888_data();
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void convertRgb888ToRgbx8888();
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void convertRgb32ToRgb888_data();
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void convertRgb32ToRgb888();
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void convertRgb16_data();
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void convertRgb16();
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void convertRgb32_data();
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void convertRgb32();
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void convertGeneric_data();
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void convertGeneric();
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void convertGenericInplace_data();
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void convertGenericInplace();
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private:
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QImage generateImageRgb888(int width, int height);
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QImage generateImageRgb16(int width, int height);
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QImage generateImageRgb32(int width, int height);
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QImage generateImageArgb32(int width, int height);
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};
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void tst_QImageConversion::convertRgb888ToRgb32_data()
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{
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QTest::addColumn<QImage>("inputImage");
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// height = 5000 to get interesting timing.
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// 3 pixels wide -> smaller than regular vector of 128bits
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QTest::newRow("width: 3px; height: 5000px;") << generateImageRgb888(3, 5000);
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// 8 pixels wide -> potential for 2 vectors
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QTest::newRow("width: 8px; height: 5000px;") << generateImageRgb888(8, 5000);
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// 16 pixels, minimum for the SSSE3 implementation
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QTest::newRow("width: 16px; height: 5000px;") << generateImageRgb888(16, 5000);
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// 200 pixels, more realistic use case
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QTest::newRow("width: 200px; height: 5000px;") << generateImageRgb888(200, 5000);
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// 2000 pixels -> typical values for pictures
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QTest::newRow("width: 2000px; height: 2000px;") << generateImageRgb888(2000, 2000);
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}
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void tst_QImageConversion::convertRgb888ToRgb32()
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{
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QFETCH(QImage, inputImage);
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QBENCHMARK {
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QImage output = inputImage.convertToFormat(QImage::Format_RGB32);
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output.constBits();
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}
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}
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void tst_QImageConversion::convertRgb888ToRgbx8888_data()
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{
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convertRgb888ToRgb32_data();
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}
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void tst_QImageConversion::convertRgb888ToRgbx8888()
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{
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QFETCH(QImage, inputImage);
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QBENCHMARK {
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QImage output = inputImage.convertToFormat(QImage::Format_RGBX8888);
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output.constBits();
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}
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}
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void tst_QImageConversion::convertRgb32ToRgb888_data()
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{
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QTest::addColumn<QImage>("inputImage");
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// height = 5000 to get interesting timing.
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// 3 pixels wide -> smaller than regular vector of 128bits
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QTest::newRow("width: 3px; height: 5000px;") << generateImageRgb32(3, 5000);
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// 8 pixels wide -> potential for 2 vectors
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QTest::newRow("width: 8px; height: 5000px;") << generateImageRgb32(8, 5000);
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// 16 pixels, minimum for the SSSE3 implementation
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QTest::newRow("width: 16px; height: 5000px;") << generateImageRgb32(16, 5000);
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// 50 pixels, more realistic use case
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QTest::newRow("width: 50px; height: 5000px;") << generateImageRgb32(50, 5000);
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// 2000 pixels -> typical values for pictures
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QTest::newRow("width: 2000px; height: 2000px;") << generateImageRgb32(2000, 2000);
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}
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void tst_QImageConversion::convertRgb32ToRgb888()
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{
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QFETCH(QImage, inputImage);
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QBENCHMARK {
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QImage output = inputImage.convertToFormat(QImage::Format_RGB888);
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output.constBits();
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}
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}
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void tst_QImageConversion::convertRgb16_data()
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{
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QTest::addColumn<QImage>("inputImage");
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QTest::addColumn<QImage::Format>("outputFormat");
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QImage rgb16 = generateImageRgb16(1000, 1000);
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QTest::newRow("rgb32") << rgb16 << QImage::Format_RGB32;
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QTest::newRow("rgb888") << rgb16 << QImage::Format_RGB888;
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QTest::newRow("rgb666") << rgb16 << QImage::Format_RGB666;
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QTest::newRow("rgb555") << rgb16 << QImage::Format_RGB555;
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QTest::newRow("argb8565") << rgb16 << QImage::Format_ARGB8565_Premultiplied;
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QTest::newRow("argb8555") << rgb16 << QImage::Format_ARGB8555_Premultiplied;
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}
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void tst_QImageConversion::convertRgb16()
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{
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QFETCH(QImage, inputImage);
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QFETCH(QImage::Format, outputFormat);
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QBENCHMARK {
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QImage output = inputImage.convertToFormat(outputFormat);
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output.constBits();
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}
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}
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void tst_QImageConversion::convertRgb32_data()
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{
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QTest::addColumn<QImage>("inputImage");
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QTest::addColumn<QImage::Format>("outputFormat");
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QImage rgb32 = generateImageRgb32(1000, 1000);
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QImage argb32 = generateImageArgb32(1000, 1000);
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QImage argb32pm = argb32.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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QTest::newRow("rgb32 -> rgb16") << rgb32 << QImage::Format_RGB16;
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QTest::newRow("rgb32 -> argb32") << rgb32 << QImage::Format_ARGB32;
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QTest::newRow("rgb32 -> argb32pm") << rgb32 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("rgb32 -> rgbx8888") << rgb32 << QImage::Format_RGBX8888;
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QTest::newRow("rgb32 -> rgba8888") << rgb32 << QImage::Format_RGBA8888;
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QTest::newRow("rgb32 -> rgba8888pm") << rgb32 << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("rgb32 -> rgb30") << rgb32 << QImage::Format_RGB30;
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QTest::newRow("rgb32 -> a2bgr30") << rgb32 << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("rgb32 -> rgb888") << rgb32 << QImage::Format_RGB888;
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QTest::newRow("rgb32 -> bgr888") << rgb32 << QImage::Format_BGR888;
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QTest::newRow("rgb32 -> rgb666") << rgb32 << QImage::Format_RGB666;
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QTest::newRow("rgb32 -> rgb555") << rgb32 << QImage::Format_RGB555;
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QTest::newRow("rgb32 -> argb8565pm") << rgb32 << QImage::Format_ARGB8565_Premultiplied;
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QTest::newRow("argb32 -> rgb16") << argb32 << QImage::Format_RGB16;
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QTest::newRow("argb32 -> rgb32") << argb32 << QImage::Format_RGB32;
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QTest::newRow("argb32 -> argb32pm") << argb32 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("argb32 -> rgbx8888") << argb32 << QImage::Format_RGBX8888;
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QTest::newRow("argb32 -> rgba8888") << argb32 << QImage::Format_RGBA8888;
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QTest::newRow("argb32 -> rgba8888pm") << argb32 << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("argb32 -> rgb30") << argb32 << QImage::Format_RGB30;
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QTest::newRow("argb32 -> a2bgr30") << argb32 << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("argb32 -> rgb888") << argb32 << QImage::Format_RGB888;
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QTest::newRow("argb32 -> bgr888") << argb32 << QImage::Format_BGR888;
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QTest::newRow("argb32 -> rgb666") << argb32 << QImage::Format_RGB666;
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QTest::newRow("argb32 -> argb8565pm") << argb32 << QImage::Format_ARGB8565_Premultiplied;
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QTest::newRow("argb32 -> argb4444pm") << argb32 << QImage::Format_ARGB4444_Premultiplied;
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QTest::newRow("argb32 -> argb6666pm") << argb32 << QImage::Format_ARGB6666_Premultiplied;
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QTest::newRow("argb32 -> rgba64") << argb32 << QImage::Format_RGBA64;
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QTest::newRow("argb32 -> rgba64pm") << argb32 << QImage::Format_RGBA64_Premultiplied;
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QTest::newRow("argb32pm -> rgb16") << argb32pm << QImage::Format_RGB16;
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QTest::newRow("argb32pm -> rgb32") << argb32pm << QImage::Format_RGB32;
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QTest::newRow("argb32pm -> argb32") << argb32pm << QImage::Format_ARGB32;
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QTest::newRow("argb32pm -> rgbx8888") << argb32pm << QImage::Format_RGBX8888;
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QTest::newRow("argb32pm -> rgba8888") << argb32pm << QImage::Format_RGBA8888;
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QTest::newRow("argb32pm -> rgba8888pm") << argb32pm << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("argb32pm -> rgb30") << argb32pm << QImage::Format_RGB30;
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QTest::newRow("argb32pm -> a2bgr30") << argb32pm << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("argb32pm -> rgb888") << argb32pm << QImage::Format_RGB888;
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QTest::newRow("argb32pm -> bgr888") << argb32pm << QImage::Format_BGR888;
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QTest::newRow("argb32pm -> rgb666") << argb32pm << QImage::Format_RGB666;
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QTest::newRow("argb32pm -> argb8565pm") << argb32pm << QImage::Format_ARGB8565_Premultiplied;
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QTest::newRow("argb32pm -> argb4444pm") << argb32pm << QImage::Format_ARGB4444_Premultiplied;
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QTest::newRow("argb32pm -> argb6666pm") << argb32pm << QImage::Format_ARGB6666_Premultiplied;
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}
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void tst_QImageConversion::convertRgb32()
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{
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QFETCH(QImage, inputImage);
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QFETCH(QImage::Format, outputFormat);
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QBENCHMARK {
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QImage output = inputImage.convertToFormat(outputFormat);
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output.constBits();
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}
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}
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void tst_QImageConversion::convertGeneric_data()
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{
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QTest::addColumn<QImage>("inputImage");
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QTest::addColumn<QImage::Format>("outputFormat");
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QImage rgb32 = generateImageRgb32(1000, 1000);
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QImage argb32 = generateImageArgb32(1000, 1000);
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QImage i8 = argb32.convertToFormat(QImage::Format_Indexed8);
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QImage rgba32 = argb32.convertToFormat(QImage::Format_RGBA8888);
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QImage bgr30 = rgb32.convertToFormat(QImage::Format_BGR30);
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QImage a2rgb30 = argb32.convertToFormat(QImage::Format_A2RGB30_Premultiplied);
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QImage rgb666 = rgb32.convertToFormat(QImage::Format_RGB666);
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QImage argb4444 = argb32.convertToFormat(QImage::Format_ARGB4444_Premultiplied);
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QImage rgba64 = argb32.convertToFormat(QImage::Format_RGBA64);
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QImage rgba64pm = argb32.convertToFormat(QImage::Format_RGBA64_Premultiplied);
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QImage rgb888 = rgb32.convertToFormat(QImage::Format_RGB888);
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QImage bgr888 = rgb32.convertToFormat(QImage::Format_BGR888);
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QTest::newRow("indexed8 -> rgb32") << i8 << QImage::Format_RGB32;
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QTest::newRow("indexed8 -> argb32") << i8 << QImage::Format_ARGB32;
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QTest::newRow("indexed8 -> argb32pm") << i8 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("indexed8 -> rgbx8888") << i8 << QImage::Format_RGBX8888;
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QTest::newRow("indexed8 -> rgb16") << i8 << QImage::Format_RGB16;
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QTest::newRow("rgba8888 -> rgb32") << rgba32 << QImage::Format_RGB32;
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QTest::newRow("rgba8888 -> argb32") << rgba32 << QImage::Format_ARGB32;
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QTest::newRow("rgba8888 -> argb32pm") << rgba32 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("rgba8888 -> rgbx8888") << rgba32 << QImage::Format_RGBX8888;
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QTest::newRow("rgba8888 -> rgba8888pm") << rgba32 << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("rgba8888 -> rgb888") << rgba32 << QImage::Format_RGB888;
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QTest::newRow("rgba8888 -> rgb30") << rgba32 << QImage::Format_RGB30;
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QTest::newRow("rgba8888 -> a2bgr30") << rgba32 << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("bgr30 -> rgb32") << bgr30 << QImage::Format_RGB32;
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QTest::newRow("bgr30 -> argb32") << bgr30 << QImage::Format_ARGB32;
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QTest::newRow("bgr30 -> argb32pm") << bgr30 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("bgr30 -> rgbx8888") << bgr30 << QImage::Format_RGBX8888;
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QTest::newRow("bgr30 -> rgba8888") << bgr30 << QImage::Format_RGBA8888;
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QTest::newRow("bgr30 -> rgba8888pm") << bgr30 << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("bgr30 -> rgb30") << bgr30 << QImage::Format_RGB30;
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QTest::newRow("bgr30 -> a2bgr30") << bgr30 << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("a2rgb30 -> rgb32") << a2rgb30 << QImage::Format_RGB32;
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QTest::newRow("a2rgb30 -> argb32") << a2rgb30 << QImage::Format_ARGB32;
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QTest::newRow("a2rgb30 -> argb32pm") << a2rgb30 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("a2rgb30 -> rgbx8888") << a2rgb30 << QImage::Format_RGBX8888;
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QTest::newRow("a2rgb30 -> rgba8888") << a2rgb30 << QImage::Format_RGBA8888;
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QTest::newRow("a2rgb30 -> rgba8888pm") << a2rgb30 << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("a2rgb30 -> rgb30") << a2rgb30 << QImage::Format_RGB30;
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QTest::newRow("a2rgb30 -> bgr30") << a2rgb30 << QImage::Format_BGR30;
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QTest::newRow("a2rgb30 -> a2bgr30") << a2rgb30 << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("rgb666 -> rgb32") << rgb666 << QImage::Format_RGB32;
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QTest::newRow("rgb666 -> argb32") << rgb666 << QImage::Format_ARGB32;
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QTest::newRow("rgb666 -> argb32pm") << rgb666 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("rgb666 -> rgb888") << rgb666 << QImage::Format_RGB888;
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QTest::newRow("rgb666 -> rgb16") << rgb666 << QImage::Format_RGB16;
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QTest::newRow("rgb666 -> rgb555") << rgb666 << QImage::Format_RGB555;
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QTest::newRow("rgb666 -> rgb30") << rgb666 << QImage::Format_RGB30;
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QTest::newRow("argb4444pm -> rgb32") << argb4444 << QImage::Format_RGB32;
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QTest::newRow("argb4444pm -> argb32") << argb4444 << QImage::Format_ARGB32;
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QTest::newRow("argb4444pm -> argb32pm") << argb4444 << QImage::Format_ARGB32_Premultiplied;
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QTest::newRow("argb4444pm -> rgbx8888") << argb4444 << QImage::Format_RGBX8888;
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QTest::newRow("argb4444pm -> rgba8888pm") << argb4444 << QImage::Format_RGBA8888_Premultiplied;
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QTest::newRow("argb4444pm -> rgb30") << argb4444 << QImage::Format_RGB30;
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QTest::newRow("argb4444pm -> a2bgr30") << argb4444 << QImage::Format_A2BGR30_Premultiplied;
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QTest::newRow("rgba64 -> argb32") << rgba64 << QImage::Format_ARGB32;
|
||
|
|
QTest::newRow("rgba64 -> argb32pm") << rgba64 << QImage::Format_ARGB32_Premultiplied;
|
||
|
|
QTest::newRow("rgba64 -> rgba64pm") << rgba64 << QImage::Format_RGBA64_Premultiplied;
|
||
|
|
|
||
|
|
QTest::newRow("rgba64pm -> argb32") << rgba64pm << QImage::Format_ARGB32;
|
||
|
|
QTest::newRow("rgba64pm -> rgbx8888") << rgba64pm << QImage::Format_RGBX8888;
|
||
|
|
QTest::newRow("rgba64pm -> rgba8888pm") << rgba64pm << QImage::Format_RGBA8888_Premultiplied;
|
||
|
|
QTest::newRow("rgba64pm -> rgb30") << rgba64pm << QImage::Format_RGB30;
|
||
|
|
QTest::newRow("rgba64pm -> a2bgr30") << rgba64pm << QImage::Format_A2BGR30_Premultiplied;
|
||
|
|
QTest::newRow("rgba64pm -> rgba64") << rgba64pm << QImage::Format_RGBA64;
|
||
|
|
|
||
|
|
QTest::newRow("rgb888 -> rgb32") << rgb888 << QImage::Format_RGB32;
|
||
|
|
QTest::newRow("rgb888 -> argb32") << rgb888 << QImage::Format_ARGB32;
|
||
|
|
QTest::newRow("rgb888 -> argb32pm") << rgb888 << QImage::Format_ARGB32_Premultiplied;
|
||
|
|
QTest::newRow("rgb888 -> rgbx8888") << rgb888 << QImage::Format_RGBX8888;
|
||
|
|
QTest::newRow("rgb888 -> rgba8888pm") << rgb888 << QImage::Format_RGBA8888_Premultiplied;
|
||
|
|
QTest::newRow("rgb888 -> bgr888") << rgb888 << QImage::Format_BGR888;
|
||
|
|
|
||
|
|
QTest::newRow("bgr888 -> rgb32") << bgr888 << QImage::Format_RGB32;
|
||
|
|
QTest::newRow("bgr888 -> argb32") << bgr888 << QImage::Format_ARGB32;
|
||
|
|
QTest::newRow("bgr888 -> argb32pm") << bgr888 << QImage::Format_ARGB32_Premultiplied;
|
||
|
|
QTest::newRow("bgr888 -> rgbx8888") << bgr888 << QImage::Format_RGBX8888;
|
||
|
|
QTest::newRow("bgr888 -> rgba8888pm") << bgr888 << QImage::Format_RGBA8888_Premultiplied;
|
||
|
|
QTest::newRow("bgr888 -> rgb888") << bgr888 << QImage::Format_RGB888;
|
||
|
|
}
|
||
|
|
|
||
|
|
void tst_QImageConversion::convertGeneric()
|
||
|
|
{
|
||
|
|
QFETCH(QImage, inputImage);
|
||
|
|
QFETCH(QImage::Format, outputFormat);
|
||
|
|
|
||
|
|
QBENCHMARK {
|
||
|
|
QImage output = inputImage.convertToFormat(outputFormat);
|
||
|
|
output.constBits();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void tst_QImageConversion::convertGenericInplace_data()
|
||
|
|
{
|
||
|
|
QTest::addColumn<QImage>("inputImage");
|
||
|
|
QTest::addColumn<QImage::Format>("outputFormat");
|
||
|
|
|
||
|
|
QImage argb32 = generateImageArgb32(1000, 1000);
|
||
|
|
QImage argb32pm = argb32.convertToFormat(QImage::Format_ARGB32_Premultiplied);
|
||
|
|
QImage rgba8888 = argb32.convertToFormat(QImage::Format_RGBA8888);
|
||
|
|
QImage argb6666 = argb32.convertToFormat(QImage::Format_ARGB6666_Premultiplied);
|
||
|
|
QImage argb4444 = argb32.convertToFormat(QImage::Format_ARGB4444_Premultiplied);
|
||
|
|
QImage rgb16 = argb32.convertToFormat(QImage::Format_RGB16);
|
||
|
|
QImage rgb30 = argb32.convertToFormat(QImage::Format_RGB30);
|
||
|
|
QImage rgb888 = argb32.convertToFormat(QImage::Format_RGB888);
|
||
|
|
|
||
|
|
QTest::newRow("argb32 -> argb32pm -> argb32") << argb32 << QImage::Format_ARGB32_Premultiplied;
|
||
|
|
QTest::newRow("argb32 -> rgb32 -> argb32") << argb32 << QImage::Format_RGB32;
|
||
|
|
QTest::newRow("argb32 -> rgba8888 -> argb32") << argb32 << QImage::Format_RGBA8888;
|
||
|
|
QTest::newRow("argb32 -> rgba8888pm -> argb32") << argb32 << QImage::Format_RGBA8888_Premultiplied;
|
||
|
|
|
||
|
|
QTest::newRow("argb32pm -> argb32 -> argb32pm") << argb32pm << QImage::Format_ARGB32;
|
||
|
|
QTest::newRow("argb32pm -> rgb32 -> argb32pm") << argb32pm << QImage::Format_RGB32;
|
||
|
|
QTest::newRow("argb32pm -> rgba8888pm -> argb32pm") << argb32pm << QImage::Format_RGBA8888_Premultiplied;
|
||
|
|
QTest::newRow("argb32pm -> rgba8888 -> argb32pm") << argb32pm << QImage::Format_RGBA8888;
|
||
|
|
QTest::newRow("argb32pm -> rgbx8888 -> argb32pm") << argb32pm << QImage::Format_RGBX8888;
|
||
|
|
|
||
|
|
QTest::newRow("rgba8888 -> argb32 -> rgba8888") << rgba8888 << QImage::Format_ARGB32;
|
||
|
|
QTest::newRow("rgba8888 -> rgb32 -> rgba8888") << rgba8888 << QImage::Format_RGB32;
|
||
|
|
QTest::newRow("rgba8888 -> argb32pm -> rgba8888") << rgba8888 << QImage::Format_ARGB32_Premultiplied;
|
||
|
|
QTest::newRow("rgba8888 -> rgba8888pm -> rgba8888") << rgba8888 << QImage::Format_RGBA8888_Premultiplied;
|
||
|
|
|
||
|
|
QTest::newRow("argb6666pm -> argb8565pm -> argb6666pm") << argb6666 << QImage::Format_ARGB8565_Premultiplied;
|
||
|
|
QTest::newRow("argb6666pm -> rgb888 -> argb6666pm") << argb6666 << QImage::Format_RGB888;
|
||
|
|
|
||
|
|
QTest::newRow("argb4444pm -> rgb16 -> argb4444pm") << argb4444 << QImage::Format_RGB16;
|
||
|
|
QTest::newRow("argb4444pm -> rgb444 -> argb4444pm") << argb4444 << QImage::Format_RGB444;
|
||
|
|
|
||
|
|
QTest::newRow("rgb16 -> rgb555 -> rgb16") << rgb16 << QImage::Format_RGB555;
|
||
|
|
QTest::newRow("rgb16 -> rgb444 -> rgb16") << rgb16 << QImage::Format_RGB444;
|
||
|
|
QTest::newRow("rgb16 -> argb4444pm -> rgb16") << rgb16 << QImage::Format_ARGB4444_Premultiplied;
|
||
|
|
|
||
|
|
QTest::newRow("rgb30 -> bgr30 -> rgb30") << rgb30 << QImage::Format_BGR30;
|
||
|
|
QTest::newRow("rgb888 -> bgr888 -> rgb888") << rgb888 << QImage::Format_BGR888;
|
||
|
|
}
|
||
|
|
|
||
|
|
void tst_QImageConversion::convertGenericInplace()
|
||
|
|
{
|
||
|
|
QFETCH(QImage, inputImage);
|
||
|
|
QFETCH(QImage::Format, outputFormat);
|
||
|
|
|
||
|
|
QImage::Format inputFormat = inputImage.format();
|
||
|
|
QImage tmpImage = std::move(inputImage);
|
||
|
|
|
||
|
|
QBENCHMARK {
|
||
|
|
tmpImage = (std::move(tmpImage).convertToFormat(outputFormat)).convertToFormat(inputFormat);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Fill a RGB888 image with "random" pixel values.
|
||
|
|
*/
|
||
|
|
QImage tst_QImageConversion::generateImageRgb888(int width, int height)
|
||
|
|
{
|
||
|
|
QImage image(width, height, QImage::Format_RGB888);
|
||
|
|
const int byteWidth = width * 3;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Fill a RGB16 image with "random" pixel values.
|
||
|
|
*/
|
||
|
|
QImage tst_QImageConversion::generateImageRgb16(int width, int height)
|
||
|
|
{
|
||
|
|
QImage image(width, height, QImage::Format_RGB16);
|
||
|
|
const int byteWidth = width * 2;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Fill a RGB32 image with "random" pixel values.
|
||
|
|
*/
|
||
|
|
QImage tst_QImageConversion::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_QImageConversion::generateImageArgb32(int width, int height)
|
||
|
|
{
|
||
|
|
QImage image(width, height, QImage::Format_ARGB32);
|
||
|
|
|
||
|
|
for (int y = 0; y < image.height(); ++y) {
|
||
|
|
QRgb *scanline = (QRgb*)image.scanLine(y);
|
||
|
|
for (int x = 0; x < width; ++x) {
|
||
|
|
int alpha = (x ^ y) & 0x1ff;
|
||
|
|
alpha = qMax(0, qMin(alpha - 128, 255));
|
||
|
|
scanline[x] = qRgba(x, y, x ^ y, alpha);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return image;
|
||
|
|
}
|
||
|
|
|
||
|
|
QTEST_MAIN(tst_QImageConversion)
|
||
|
|
#include "tst_qimageconversion.moc"
|