C++ KisPaintDeviceSP::convertFromQImage方法代码示例

void KisPaintDeviceTest::testMakeClone()
{
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP srcDev = new KisPaintDevice(cs);
    srcDev->convertFromQImage(image, 0);
    srcDev->move(10,10);

    const KoColorSpace * weirdCS = KoColorSpaceRegistry::instance()->lab16();
    KisPaintDeviceSP dstDev = new KisPaintDevice(weirdCS);
    dstDev->move(1000,1000);

    QVERIFY(!dstDev->fastBitBltPossible(srcDev));

    QRect cloneRect(100,100,200,200);
    QPoint errpoint;

    dstDev->makeCloneFrom(srcDev, cloneRect);

    QVERIFY(*dstDev->colorSpace() == *srcDev->colorSpace());
    QCOMPARE(dstDev->pixelSize(), srcDev->pixelSize());
    QCOMPARE(dstDev->x(), srcDev->x());
    QCOMPARE(dstDev->y(), srcDev->y());
    QCOMPARE(dstDev->exactBounds(), cloneRect);

    QImage srcImage = srcDev->convertToQImage(0, cloneRect.x(), cloneRect.y(),
                                              cloneRect.width(), cloneRect.height());
    QImage dstImage = dstDev->convertToQImage(0, cloneRect.x(), cloneRect.y(),
                                              cloneRect.width(), cloneRect.height());
    if (!TestUtil::compareQImages(errpoint, dstImage, srcImage)) {
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }
}

bool KisCrashFilterTest::applyFilter(const KoColorSpace * cs,  KisFilterSP f)
{

    QImage qimage(QString(FILES_DATA_DIR) + QDir::separator() + "carrot.png");

    KisPaintDeviceSP dev = new KisPaintDevice(cs);
//    dev->fill(0, 0, 100, 100, dev->defaultPixel());
    dev->convertFromQImage(qimage, 0, 0, 0);

    // Get the predefined configuration from a file
    KisFilterConfigurationSP  kfc = f->defaultConfiguration(dev);

    QFile file(QString(FILES_DATA_DIR) + QDir::separator() + f->id() + ".cfg");
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        dbgKrita << "creating new file for " << f->id();
        file.open(QIODevice::WriteOnly | QIODevice::Text);
        QTextStream out(&file);
        out.setCodec("UTF-8");
        out << kfc->toXML();
    } else {
        QString s;
        QTextStream in(&file);
        in.setCodec("UTF-8");
        s = in.readAll();
        kfc->fromXML(s);
    }
    dbgKrita << f->id() << ", " << cs->id() << ", " << cs->profile()->name();// << kfc->toXML() << "\n";

    f->process(dev, QRect(QPoint(0,0), qimage.size()), kfc);

    return true;

}

void KisPaintDeviceTest::testBltPerformance()
{
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa_transparent.png");
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP fdev = new KisPaintDevice(cs);
    fdev->convertFromQImage(image, 0);

    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->fill(0, 0, 640, 441, KoColor(Qt::white, cs).data());

    QTime t;
    t.start();

    int x;
    for (x = 0; x < 1000; ++x) {
        KisPainter gc(dev);
        gc.bitBlt(QPoint(0, 0), fdev, image.rect());
    }

    qDebug() << x
    << "blits"
    << " done in "
    << t.elapsed()
    << "ms";


}

void KisFilterTest::testDifferentSrcAndDst()
{
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();

    QImage qimage(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");
    QImage inverted(QString(FILES_DATA_DIR) + QDir::separator() + "inverted_hakonepa.png");
    KisPaintDeviceSP src = new KisPaintDevice(cs);
    KisPaintDeviceSP dst = new KisPaintDevice(cs);
    KisSelectionSP sel = new KisSelection(new KisSelectionDefaultBounds(src));
    sel->getOrCreatePixelSelection()->invert(); // select everything
    sel->updateProjection();

    src->convertFromQImage(qimage, 0, 0, 0);

    KisFilterSP f = KisFilterRegistry::instance()->value("invert");
    Q_ASSERT(f);

    KisFilterConfiguration * kfc = f->defaultConfiguration(0);
    Q_ASSERT(kfc);

    f->process(src, dst, sel, QRect(QPoint(0,0), qimage.size()), kfc);

    QPoint errpoint;
    if (!TestUtil::compareQImages(errpoint, inverted, dst->convertToQImage(0, 0, 0, qimage.width(), qimage.height()))) {
        dst->convertToQImage(0, 0, 0, qimage.width(), qimage.height()).save("filtertest.png");
        QFAIL(QString("Failed to create inverted image, first different pixel: %1,%2 ").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }
}

void KisTransformWorkerTest::testIdentity()
{
    TestUtil::TestProgressBar bar;
    KoProgressUpdater pu(&bar);
    KoUpdaterPtr updater = pu.startSubtask();

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "mirror_source.png");
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->convertFromQImage(image, "");
    KisFilterStrategy * filter = new KisBoxFilterStrategy();

    KisTransaction t("test", dev);
    KisTransformWorker tw(dev, 1.0, 1.0,
                          0.0, 0.0,
                          0.0, 0.0,
                          0.0,
                          0, 0, updater, filter, true);
    tw.run();
    t.end();
    
    QRect rc = dev->exactBounds();

    QVERIFY(rc.width() ==image.width());
    QVERIFY(rc.height() == image.height());

    QImage result = dev->convertToQImage(0, rc.x(), rc.y(), rc.width(), rc.height());
    QPoint errpoint;
    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("test_identity_source.png");
        result.save("test_identity_result.png");
        QFAIL(QString("Failed to apply identity transformation to image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toAscii());
    }
}

void KisFilterMaskTest::testProjectionSelected()
{
    KisImageSP image;
    KisPaintLayerSP layer;

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();

    QImage qimage(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");
    QImage inverted(QString(FILES_DATA_DIR) + QDir::separator() + "inverted_hakonepa.png");

    KisFilterSP f = KisFilterRegistry::instance()->value("invert");
    Q_ASSERT(f);
    KisFilterConfiguration * kfc = f->defaultConfiguration(0);
    Q_ASSERT(kfc);

    KisFilterMaskSP mask = new KisFilterMask();
    mask->setFilter(kfc);
    mask->createNodeProgressProxy();

    KisPaintDeviceSP projection = new KisPaintDevice(cs);
    initImage(image, layer, projection, mask);
    projection->convertFromQImage(qimage, 0, 0, 0);

    mask->initSelection(layer);
    mask->select(qimage.rect(), MAX_SELECTED);
    mask->apply(projection, qimage.rect(), qimage.rect(), KisNode::N_FILTHY);
    QCOMPARE(mask->exactBounds(), QRect(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT));

    QPoint errpoint;
    if (!TestUtil::compareQImages(errpoint, inverted, projection->convertToQImage(0, 0, 0, qimage.width(), qimage.height()))) {
        projection->convertToQImage(0, 0, 0, qimage.width(), qimage.height()).save("filtermasktest2.png");
        QFAIL(QString("Failed to create inverted image, first different pixel: %1,%2 ").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }

}

void KisFilterTest::testWithProgressUpdater()
{
    TestUtil::TestProgressBar * bar = new TestUtil::TestProgressBar();
    KoProgressUpdater* pu = new KoProgressUpdater(bar);
    KoUpdaterPtr updater = pu->startSubtask();

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();

    QImage qimage(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");
    QImage inverted(QString(FILES_DATA_DIR) + QDir::separator() + "inverted_hakonepa.png");
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->convertFromQImage(qimage, 0, 0, 0);

    KisFilterSP f = KisFilterRegistry::instance()->value("invert");
    Q_ASSERT(f);

    KisFilterConfiguration * kfc = f->defaultConfiguration(0);
    Q_ASSERT(kfc);

    f->process(dev, QRect(QPoint(0,0), qimage.size()), kfc, updater);

    QPoint errpoint;
    if (!TestUtil::compareQImages(errpoint, inverted, dev->convertToQImage(0, 0, 0, qimage.width(), qimage.height()))) {
        dev->convertToQImage(0, 0, 0, qimage.width(), qimage.height()).save("filtertest.png");
        QFAIL(QString("Failed to create inverted image, first different pixel: %1,%2 ").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }
    delete pu;
    delete bar;
}

void KisFillPainterTest::benchmarkFillingScanlineColor()
{
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = new KisPaintDevice(cs);

    QImage srcImage(TestUtil::fetchDataFileLazy("heavy_labyrinth.png"));
    QVERIFY(!srcImage.isNull());

    QRect imageRect = srcImage.rect();

    dev->convertFromQImage(srcImage, 0, 0, 0);


    QBENCHMARK_ONCE {
        KisScanlineFill gc(dev, QPoint(), imageRect);
        gc.setThreshold(THRESHOLD);
        gc.fillColor(KoColor(Qt::red, dev->colorSpace()));
    }

    QImage resultImage =
        dev->convertToQImage(0,
                             imageRect.x(), imageRect.y(),
                             imageRect.width(), imageRect.height());

    QVERIFY(TestUtil::checkQImage(resultImage,
                                  "fill_painter",
                                  "scanline_",
                                  "heavy_labyrinth_top_left"));
}

bool applyFilter(const KoColorSpace * cs,  KisFilterSP f)
{

    QImage qimage(QString(FILES_DATA_DIR) + QDir::separator() + "lena.png");

    KisPaintDeviceSP dev = new KisPaintDevice(cs);
//    dev->fill(0, 0, 100, 100, dev->defaultPixel());
    dev->convertFromQImage(qimage, "", 0, 0);

    // Get the predefined configuration from a file
    KisFilterConfiguration * kfc = f->defaultConfiguration(dev);

    QFile file(QString(FILES_DATA_DIR) + QDir::separator() + f->id() + ".cfg");
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        qDebug() << "creating new file for " << f->id();
        file.open(QIODevice::WriteOnly | QIODevice::Text);
        QTextStream out(&file);
        out << kfc->toXML();
    } else {
        QString s;
        QTextStream in(&file);
        s = in.readAll();
        kfc->fromXML(s);
    }
    qDebug() << f->id() << ", " << cs->id() << ", " << cs->profile()->name();// << kfc->toXML() << "\n";

    KisConstProcessingInformation src(dev,  QPoint(0, 0), 0);
    KisProcessingInformation dst(dev, QPoint(0, 0), 0);

    f->process(src, dst, qimage.size(), kfc);

    return true;

}

void KisConvolutionPainterTest::testIdentityConvolution()
{
    QImage qimage(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");

    KisPaintDeviceSP dev = new KisPaintDevice(KoColorSpaceRegistry::instance()->rgb8());
    dev->convertFromQImage(qimage, 0, 0, 0);

    KisConvolutionKernelSP kernel = new KisConvolutionKernel(3, 3, 0, 0);
    kernel->data()(0) = 0;
    kernel->data()(1) = 0;
    kernel->data()(2) = 0;
    kernel->data()(3) = 0;
    kernel->data()(4) = 1;
    kernel->data()(5) = 0;
    kernel->data()(6) = 0;
    kernel->data()(7) = 0;
    kernel->data()(8) = 0;
    KisConvolutionPainter gc(dev);
    gc.beginTransaction();
    gc.applyMatrix(kernel, dev, QPoint(0, 0), QPoint(0, 0), QSize(qimage.width(), qimage.height()));
    gc.deleteTransaction();

    QImage resultImage = dev->convertToQImage(0, 0, 0, qimage.width(), qimage.height());

    QPoint errpoint;
    if (!TestUtil::compareQImages(errpoint, qimage, resultImage)) {
        resultImage.save("identity_convolution.png");
        QFAIL(QString("Identity kernel did change image, first different pixel: %1,%2 ").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }
}

void KisConvolutionPainterTest::testGaussianDetails(bool useFftw)
{
    QImage referenceImage(TestUtil::fetchDataFileLazy("resolution_test.png"));
    KisPaintDeviceSP dev = new KisPaintDevice(KoColorSpaceRegistry::instance()->rgb8());
    dev->convertFromQImage(referenceImage, 0, 0, 0);

    testGaussianBase(dev, useFftw, "details");
}

void KisTransformWorkerTest::testXScaleDown()
{
    TestUtil::TestProgressBar bar;
    KoProgressUpdater pu(&bar);
    KoUpdaterPtr updater = pu.startSubtask();

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "mirror_source.png");
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->convertFromQImage(image, "");

    KisFilterStrategy * filter = new KisBoxFilterStrategy();

    KisTransaction t("test", dev);
    KisTransformWorker tw(dev, 0.123, 1.0,
                          0.0, 0.0,
                          0.0, 0.0,
                          0.0,
                          0, 0, updater, filter, true);
    tw.run();
    t.end();
    
    QRect rc = dev->exactBounds();

    QVERIFY(rc.width() == qRound(image.width() * 0.123));
    QVERIFY(rc.height() == image.height() - 1); // the height is reduced by 1 because in the source image
                                                // at the bottom line most pixels (except 1 or 2) are
                                                // entirely transparent.
                                                // when scaling down the image by ~ 1/10, the few non-tranparent
                                                // pixels disappear when "mixed" with the transparent ones
                                                // around

//    KisTransaction t2("test", dev);
//    KisRandomAccessorSP ac = dev->createRandomAccessorNG(rc.x(), rc.y());
//    for(int x = rc.x(); x < rc.width(); ++x) {
//        for(int y = rc.y(); y < rc.height(); ++y) {
//            ac->moveTo(x, y);
//            cs->setOpacity(ac->rawData(), 0.5, 1);
//        }
//    }
//    t2.end();

    QImage result = dev->convertToQImage(0, rc.x(), rc.y(), rc.width(), rc.height());
    QPoint errpoint;
    image.load(QString(FILES_DATA_DIR) + QDir::separator() + "scaledownx_result.png");
    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("scaledownx_source.png");
        result.save("scaledownx_result.png");
        QFAIL(QString("Failed to scale down the image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toAscii());
    }
}

void KisPaintDeviceTest::testRoundtripConversion()
{
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->convertFromQImage(image, 0);
    QImage result = dev->convertToQImage(0, 0, 0, 640, 441);

    QPoint errpoint;

    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("kis_paint_device_test_test_roundtrip_qimage.png");
        result.save("kis_paint_device_test_test_roundtrip_result.png");
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }
}

void KisPaintDeviceTest::testColorSpaceConversion()
{
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "tile.png");
    const KoColorSpace* srcCs = KoColorSpaceRegistry::instance()->rgb8();
    const KoColorSpace* dstCs = KoColorSpaceRegistry::instance()->lab16();
    KisPaintDeviceSP dev = new KisPaintDevice(srcCs);
    dev->convertFromQImage(image, 0);
    dev->move(10, 10);   // Unalign with tile boundaries
    KUndo2Command* cmd = dev->convertTo(dstCs);

    QCOMPARE(dev->exactBounds(), QRect(10, 10, image.width(), image.height()));
    QCOMPARE(dev->pixelSize(), dstCs->pixelSize());
    QVERIFY(*dev->colorSpace() == *dstCs);

    delete cmd;
}

void KisTransformWorkerTest::testYShear()
{
    TestUtil::TestProgressBar bar;
    KoProgressUpdater pu(&bar);
    KoUpdaterPtr updater = pu.startSubtask();

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "mirror_source.png");
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->convertFromQImage(image, "");

    KisFilterStrategy * filter = new KisBoxFilterStrategy();

    KisTransaction t("test", dev);
    KisTransformWorker tw(dev, 1.0, 1.0,
                          0.0, 1.0,
                          300., 200.,
                          0.0,
                          0, 0, updater, filter, true);
    tw.run();
    t.end();

    QRect rc = dev->exactBounds();

    QVERIFY(rc.width() == image.width());
    QVERIFY(rc.height() == 959);

//    KisTransaction t2("test", dev);
//    KisRandomAccessorSP ac = dev->createRandomAccessorNG(rc.x(), rc.y());
//    for(int x = rc.x(); x < rc.width(); ++x) {
//        for(int y = rc.y(); y < rc.height(); ++y) {
//            ac->moveTo(x, y);
//            cs->setOpacity(ac->rawData(), 0.5, 1);
//        }
//    }
//    t2.end();

    QImage result = dev->convertToQImage(0, rc.x(), rc.y(), rc.width(), rc.height());
    QPoint errpoint;
    image.load(QString(FILES_DATA_DIR) + QDir::separator() + "sheary_result.png");
    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("sheary_source.png");
        result.save("sheary_result.png");
        QFAIL(QString("Failed to shear the image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toAscii());
    }

}