KisQmicSimpleConvertor Class Reference

#include <kis_qmic_simple_convertor.h>

Static Public Member Functions
static QString	blendingModeToString (QString blendMode)
static void	convertFromGmicFast (const KisQMicImage &gmicImage, KisPaintDeviceSP dst, float gmicUnitValue)
	Fast versions.
static void	convertFromGmicImage (const KisQMicImage &gmicImage, KisPaintDeviceSP dst, float gmicMaxChannelValue)
static void	convertFromQImage (const QImage &image, KisQMicImage &gmicImage, float gmicUnitValue=1.0)
static void	convertToGmicImage (KisPaintDeviceSP dev, KisQMicImage &gmicImage, QRect rc=QRect())
static void	convertToGmicImageFast (KisPaintDeviceSP dev, KisQMicImage &gmicImage, QRect rc=QRect())
static QImage	convertToQImage (const KisQMicImage &gmicImage, float gmicMaxChannelValue=255.0)
static QString	stringToBlendingMode (QString str)

Detailed Description

Definition at line 18 of file kis_qmic_simple_convertor.h.

Member Function Documentation

blendingModeToString()

QString KisQmicSimpleConvertor::blendingModeToString ( QString blendMode )

static

Definition at line 1087 of file kis_qmic_simple_convertor.cpp.

{
    static auto reverseModeMap = reverseMap();
    if (reverseModeMap.find(blendMode) != reverseModeMap.end())
        return reverseModeMap.at(blendMode);
    return "alpha";
}

References reverseMap().

convertFromGmicFast()

void KisQmicSimpleConvertor::convertFromGmicFast ( const KisQMicImage & gmicImage, KisPaintDeviceSP dst, float gmicUnitValue )

static

Fast versions.

Definition at line 368 of file kis_qmic_simple_convertor.cpp.

{
    dbgPlugins << "convertFromGmicFast";
    const KoColorSpace *dstColorSpace = dst->colorSpace();
    const KoColorTransformationSP gmicToDstPixelFormat(
        createTransformationFromGmic(dstColorSpace,
                                     gmicImage.m_spectrum,
                                     gmicUnitValue));
    if (!gmicToDstPixelFormat) {
        dbgPlugins << "Fall-back to slow color conversion";
        convertFromGmicImage(gmicImage, dst, gmicUnitValue);
        return;
    }
 
    dst->clear();
    dst->moveTo(0, 0);
 
    const qint32 x = 0;
    const qint32 y = 0;
    const auto width = static_cast<size_t>(gmicImage.m_width);
    const auto height = static_cast<size_t>(gmicImage.m_height);
 
    const auto *rgbaFloat32bitcolorSpace =
        KoColorSpaceRegistry::instance()->colorSpace(
            RGBAColorModelID.id(),
            Float32BitsColorDepthID.id(),
            KoColorSpaceRegistry::instance()->rgb8()->profile());
    // this function always convert to rgba or rgb with various color depth
    const quint32 dstNumChannels = rgbaFloat32bitcolorSpace->channelCount();
 
    // number of channels that we will copy
    const int numChannels = gmicImage.m_spectrum;
 
    // gmic image has 4, 3, 2, 1 channel
    std::vector<float *> planes(dstNumChannels);
    const size_t channelOffset = width * height;
    for (int channelIndex = 0; channelIndex < gmicImage.m_spectrum;
         channelIndex++) {
        planes[channelIndex] = gmicImage.m_data + channelOffset * channelIndex;
    }
 
    for (int channelIndex = gmicImage.m_spectrum;
         channelIndex < (int)dstNumChannels;
         channelIndex++) {
        planes[channelIndex] = 0; // turn off
    }
 
    size_t dataY = 0;
    int imageY = y;
    size_t rowsRemaining = height;
 
    const auto floatPixelSize = rgbaFloat32bitcolorSpace->pixelSize();
 
    KisRandomAccessorSP it = dst->createRandomAccessorNG();
    const auto tileWidth =
        static_cast<size_t>(it->numContiguousColumns(dst->x()));
    const auto tileHeight =
        static_cast<size_t>(it->numContiguousRows(dst->y()));
    Q_ASSERT(tileWidth == 64);
    Q_ASSERT(tileHeight == 64);
    std::vector<quint8> convertedTile(
        static_cast<size_t>(rgbaFloat32bitcolorSpace->pixelSize()) * tileWidth
        * tileHeight);
 
    // grayscale and rgb case does not have alpha, so let's fill 4th channel of
    // rgba tile with opacity opaque
    if (gmicImage.m_spectrum == 1 || gmicImage.m_spectrum == 3) {
        const auto nPixels = tileWidth * tileHeight;
        auto *srcPixel =
            reinterpret_cast<KoRgbF32Traits::Pixel *>(convertedTile.data());
        for (size_t pixelIndex = 0; pixelIndex < nPixels;
             pixelIndex++, srcPixel++) {
            srcPixel->alpha = gmicUnitValue;
        }
    }
 
    while (rowsRemaining > 0) {
        size_t dataX = 0;
        qint32 imageX = x;
        size_t columnsRemaining = width;
        const auto numContiguousImageRows =
            static_cast<size_t>(it->numContiguousRows(imageY));
 
        size_t rowsToWork = qMin(numContiguousImageRows, rowsRemaining);
 
        while (columnsRemaining > 0) {
            const auto numContiguousImageColumns =
                static_cast<size_t>(it->numContiguousColumns(imageX));
            auto columnsToWork =
                qMin(numContiguousImageColumns, columnsRemaining);
 
            const auto dataIdx = dataX + dataY * width;
            const auto tileRowStride =
                (tileWidth - columnsToWork) * floatPixelSize;
 
            auto *tileItStart = convertedTile.data();
            // copy gmic channels to float tile
            const auto channelSize = sizeof(float);
            for (int i = 0; i < numChannels; i++) {
                float *planeIt = planes[i] + dataIdx;
                const auto dataStride = width - columnsToWork;
                quint8 *tileIt = tileItStart;
 
                for (size_t row = 0; row < rowsToWork; row++) {
                    for (size_t col = 0; col < columnsToWork; col++) {
                        memcpy(tileIt, planeIt, channelSize);
                        tileIt += floatPixelSize;
                        planeIt += 1;
                    }
 
                    tileIt += tileRowStride;
                    planeIt += dataStride;
                }
                tileItStart += channelSize;
            }
 
            it->moveTo(imageX, imageY);
            quint8 *dstTileItStart = it->rawData();
            tileItStart =
                convertedTile.data(); // back to the start of the converted tile
            // copy float tile to dst colorspace based on input colorspace (rgb
            // or grayscale)
            for (size_t row = 0; row < rowsToWork; row++) {
                gmicToDstPixelFormat->transform(
                    tileItStart,
                    dstTileItStart,
                    static_cast<int>(columnsToWork));
                dstTileItStart += dstColorSpace->pixelSize() * tileWidth;
                tileItStart += floatPixelSize * tileWidth;
            }
 
            imageX += static_cast<int>(columnsToWork);
            dataX += columnsToWork;
            columnsRemaining -= columnsToWork;
        }
 
        imageY += static_cast<int>(rowsToWork);
        dataY += rowsToWork;
        rowsRemaining -= rowsToWork;
    }
 
    dst->crop(x, y, static_cast<qint32>(width), static_cast<qint32>(height));
}

References KoColorSpace::channelCount(), KisPaintDevice::clear(), KisPaintDevice::colorSpace(), KoColorSpaceRegistry::colorSpace(), convertFromGmicImage(), KisPaintDevice::createRandomAccessorNG(), createTransformationFromGmic(), KisPaintDevice::crop(), dbgPlugins, Float32BitsColorDepthID, KoID::id(), KoColorSpaceRegistry::instance(), KisQMicImage::m_data, KisQMicImage::m_height, KisQMicImage::m_spectrum, KisQMicImage::m_width, KisPaintDevice::moveTo(), KisRandomConstAccessorNG::moveTo(), KisRandomConstAccessorNG::numContiguousColumns(), KisRandomConstAccessorNG::numContiguousRows(), KoColorSpace::pixelSize(), KoColorSpace::profile(), KisBaseAccessor::rawData(), KoColorSpaceRegistry::rgb8(), RGBAColorModelID, KisPaintDevice::x(), and KisPaintDevice::y().

convertFromGmicImage()

void KisQmicSimpleConvertor::convertFromGmicImage ( const KisQMicImage & gmicImage, KisPaintDeviceSP dst, float gmicMaxChannelValue )

static

Definition at line 751 of file kis_qmic_simple_convertor.cpp.

{
    dbgPlugins << "convertFromGmicSlow";
    Q_ASSERT(!dst.isNull());
    const KoColorSpace *rgbaFloat32bitcolorSpace =
        KoColorSpaceRegistry::instance()->colorSpace(
            RGBAColorModelID.id(),
            Float32BitsColorDepthID.id(),
            KoColorSpaceRegistry::instance()->rgb8()->profile());
    const KoColorSpace *dstColorSpace = dst->colorSpace();
 
    KisPaintDeviceSP dev = dst;
    const size_t greenOffset =
        static_cast<size_t>(gmicImage.m_width) * gmicImage.m_height;
    const size_t blueOffset = greenOffset * 2;
    const size_t alphaOffset = greenOffset * 3;
    QRect rc(0,
             0,
             static_cast<int>(gmicImage.m_width),
             static_cast<int>(gmicImage.m_height));
 
    KisRandomAccessorSP it = dev->createRandomAccessorNG();
    float r = 0;
    float g = 0;
    float b = 0;
    float a = 1.0;
 
    const size_t optimalBufferSize =
        64; // most common numContiguousColumns, tile size?
    std::vector<quint8> floatRGBApixelStorage(
        rgbaFloat32bitcolorSpace->pixelSize() * optimalBufferSize);
    quint8 *floatRGBApixel = floatRGBApixelStorage.data();
    const auto pixelSize = rgbaFloat32bitcolorSpace->pixelSize();
 
    const auto renderingIntent =
        KoColorConversionTransformation::internalRenderingIntent();
    const auto conversionFlags =
        KoColorConversionTransformation::internalConversionFlags();
 
    // Krita needs rgba in 0.0...1.0
    const float multiplied =
        KoColorSpaceMathsTraits<float>::unitValue / gmicMaxChannelValue;
 
    switch (gmicImage.m_spectrum) {
    case 1: {
        // convert grayscale to rgba
        for (int y = 0; y < rc.height(); y++) {
            int x = 0;
            while (x < rc.width()) {
                it->moveTo(x, y);
                auto numContiguousColumns =
                    qMin(static_cast<size_t>(it->numContiguousColumns(x)),
                         optimalBufferSize);
                numContiguousColumns =
                    qMin(numContiguousColumns,
                         static_cast<size_t>(rc.width() - x));
 
                size_t pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                for (size_t bx = 0; bx < numContiguousColumns; bx++) {
                    r = g = b = gmicImage.m_data[pos] * multiplied;
                    a = KoColorSpaceMathsTraits<float>::unitValue;
 
                    memcpy(floatRGBApixel + bx * pixelSize, &r, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 4, &g, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 8, &b, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 12, &a, 4);
                    pos++;
                }
                rgbaFloat32bitcolorSpace->convertPixelsTo(
                    floatRGBApixel,
                    it->rawData(),
                    dstColorSpace,
                    static_cast<quint32>(numContiguousColumns),
                    renderingIntent,
                    conversionFlags);
                x += static_cast<int>(numContiguousColumns);
            }
        }
        break;
    }
    case 2: {
        // convert grayscale alpha to rgba
        for (int y = 0; y < rc.height(); y++) {
            int x = 0;
            while (x < rc.width()) {
                it->moveTo(x, y);
                auto numContiguousColumns =
                    qMin(static_cast<size_t>(it->numContiguousColumns(x)),
                         optimalBufferSize);
                numContiguousColumns =
                    qMin(numContiguousColumns,
                         static_cast<size_t>(rc.width() - x));
 
                size_t pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                for (size_t bx = 0; bx < numContiguousColumns; bx++) {
                    r = g = b = gmicImage.m_data[pos] * multiplied;
                    a = gmicImage.m_data[pos + greenOffset] * multiplied;
 
                    memcpy(floatRGBApixel + bx * pixelSize, &r, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 4, &g, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 8, &b, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 12, &a, 4);
                    pos++;
                }
                rgbaFloat32bitcolorSpace->convertPixelsTo(
                    floatRGBApixel,
                    it->rawData(),
                    dstColorSpace,
                    static_cast<quint32>(numContiguousColumns),
                    renderingIntent,
                    conversionFlags);
                x += static_cast<int>(numContiguousColumns);
            }
        }
        break;
    }
    case 3: {
        // convert rgb -> rgba
        for (int y = 0; y < rc.height(); y++) {
            int x = 0;
            while (x < rc.width()) {
                it->moveTo(x, y);
                auto numContiguousColumns =
                    qMin(static_cast<size_t>(it->numContiguousColumns(x)),
                         optimalBufferSize);
                numContiguousColumns =
                    qMin(numContiguousColumns,
                         static_cast<size_t>(rc.width() - x));
 
                size_t pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                for (size_t bx = 0; bx < numContiguousColumns; bx++) {
                    r = gmicImage.m_data[pos] * multiplied;
                    g = gmicImage.m_data[pos + greenOffset] * multiplied;
                    b = gmicImage.m_data[pos + blueOffset] * multiplied;
                    a = gmicMaxChannelValue * multiplied;
 
                    memcpy(floatRGBApixel + bx * pixelSize, &r, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 4, &g, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 8, &b, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 12, &a, 4);
                    pos++;
                }
                rgbaFloat32bitcolorSpace->convertPixelsTo(
                    floatRGBApixel,
                    it->rawData(),
                    dstColorSpace,
                    static_cast<quint32>(numContiguousColumns),
                    renderingIntent,
                    conversionFlags);
                x += static_cast<int>(numContiguousColumns);
            }
        }
        break;
    }
    case 4: {
        for (int y = 0; y < rc.height(); y++) {
            int x = 0;
            while (x < rc.width()) {
                it->moveTo(x, y);
                auto numContiguousColumns =
                    qMin(static_cast<size_t>(it->numContiguousColumns(x)),
                         optimalBufferSize);
                numContiguousColumns =
                    qMin(numContiguousColumns,
                         static_cast<size_t>(rc.width() - x));
 
                size_t pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                for (size_t bx = 0; bx < numContiguousColumns; bx++) {
                    r = gmicImage.m_data[pos] * multiplied;
                    g = gmicImage.m_data[pos + greenOffset] * multiplied;
                    b = gmicImage.m_data[pos + blueOffset] * multiplied;
                    a = gmicImage.m_data[pos + alphaOffset] * multiplied;
 
                    memcpy(floatRGBApixel + bx * pixelSize, &r, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 4, &g, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 8, &b, 4);
                    memcpy(floatRGBApixel + bx * pixelSize + 12, &a, 4);
                    pos++;
                }
                rgbaFloat32bitcolorSpace->convertPixelsTo(
                    floatRGBApixel,
                    it->rawData(),
                    dstColorSpace,
                    static_cast<quint32>(numContiguousColumns),
                    renderingIntent,
                    conversionFlags);
                x += static_cast<int>(numContiguousColumns);
            }
        }
        break;
    }
 
    default: {
        dbgPlugins << "Unsupported gmic output format : " << gmicImage.m_width
                   << gmicImage.m_height << gmicImage.m_spectrum;
    }
    }
}

References KisPaintDevice::colorSpace(), KoColorSpaceRegistry::colorSpace(), KoColorSpace::convertPixelsTo(), KisPaintDevice::createRandomAccessorNG(), dbgPlugins, Float32BitsColorDepthID, KoID::id(), KoColorSpaceRegistry::instance(), KoColorConversionTransformation::internalConversionFlags(), KoColorConversionTransformation::internalRenderingIntent(), KisSharedPtr< T >::isNull(), KisQMicImage::m_data, KisQMicImage::m_height, KisQMicImage::m_spectrum, KisQMicImage::m_width, KisRandomConstAccessorNG::moveTo(), KisRandomConstAccessorNG::numContiguousColumns(), KoColorSpace::pixelSize(), KoColorSpace::profile(), KisBaseAccessor::rawData(), KoColorSpaceRegistry::rgb8(), and RGBAColorModelID.

convertFromQImage()

void KisQmicSimpleConvertor::convertFromQImage ( const QImage & image, KisQMicImage & gmicImage, float gmicUnitValue = 1.0 )

static

Definition at line 988 of file kis_qmic_simple_convertor.cpp.

{
    const auto greenOffset =
        static_cast<size_t>(gmicImage.m_width) * gmicImage.m_height;
    const size_t blueOffset = greenOffset * 2;
    const size_t alphaOffset = greenOffset * 3;
 
    // QImage has 0..255
    const float qimageUnitValue = 255.0f;
    const float multiplied = gmicUnitValue / qimageUnitValue;
 
    Q_ASSERT(image.width() == int(gmicImage.m_width));
    Q_ASSERT(image.height() == int(gmicImage.m_height));
    Q_ASSERT(image.format() == QImage::Format_ARGB32);
 
    switch (gmicImage.m_spectrum) {
    case 1: {
        for (int y = 0; y < image.height(); y++) {
            const QRgb *pixel =
                reinterpret_cast<const QRgb *>(image.scanLine(y));
            for (int x = 0; x < image.width(); x++) {
                const auto pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                gmicImage.m_data[pos] =
                    static_cast<float>(qGray(pixel[x])) * multiplied;
            }
        }
        break;
    }
    case 2: {
        for (int y = 0; y < image.height(); y++) {
            const QRgb *pixel =
                reinterpret_cast<const QRgb *>(image.scanLine(y));
            for (int x = 0; x < image.width(); x++) {
                const auto pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                gmicImage.m_data[pos] =
                    static_cast<float>(qGray(pixel[x])) * multiplied;
                gmicImage.m_data[pos + greenOffset] =
                    static_cast<float>(qAlpha(pixel[x])) * multiplied;
            }
        }
        break;
    }
    case 3: {
        for (int y = 0; y < image.height(); y++) {
            const QRgb *pixel =
                reinterpret_cast<const QRgb *>(image.scanLine(y));
            for (int x = 0; x < image.width(); x++) {
                const auto pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                gmicImage.m_data[pos] =
                    static_cast<float>(qRed(pixel[x])) * multiplied;
                gmicImage.m_data[pos + greenOffset] =
                    static_cast<float>(qGreen(pixel[x])) * multiplied;
                gmicImage.m_data[pos + blueOffset] =
                    static_cast<float>(qBlue(pixel[x])) * multiplied;
            }
        }
        break;
    }
    case 4: {
        for (int y = 0; y < image.height(); y++) {
            const QRgb *pixel =
                reinterpret_cast<const QRgb *>(image.scanLine(y));
            for (int x = 0; x < image.width(); x++) {
                const auto pos = static_cast<size_t>(y) * gmicImage.m_width
                    + static_cast<size_t>(x);
                gmicImage.m_data[pos] =
                    static_cast<float>(qRed(pixel[x])) * multiplied;
                gmicImage.m_data[pos + greenOffset] =
                    static_cast<float>(qGreen(pixel[x])) * multiplied;
                gmicImage.m_data[pos + blueOffset] =
                    static_cast<float>(qBlue(pixel[x])) * multiplied;
                gmicImage.m_data[pos + alphaOffset] =
                    static_cast<float>(qAlpha(pixel[x])) * multiplied;
            }
        }
        break;
    }
    default: {
        Q_ASSERT(false);
        dbgKrita << "Unexpected gmic image format";
        break;
    }
    }
}

References dbgKrita, KisQMicImage::m_data, KisQMicImage::m_height, KisQMicImage::m_spectrum, and KisQMicImage::m_width.

convertToGmicImage()

void KisQmicSimpleConvertor::convertToGmicImage ( KisPaintDeviceSP dev, KisQMicImage & gmicImage, QRect rc = QRect() )

static

Definition at line 662 of file kis_qmic_simple_convertor.cpp.

{
    Q_ASSERT(!dev.isNull());
    Q_ASSERT(gmicImage.m_spectrum == 4); // rgba
 
    if (rc.isEmpty()) {
        rc = QRect(0,
                   0,
                   static_cast<int>(gmicImage.m_width),
                   static_cast<int>(gmicImage.m_height));
    }
 
    const KoColorSpace *rgbaFloat32bitcolorSpace =
        KoColorSpaceRegistry::instance()->colorSpace(
            RGBAColorModelID.id(),
            Float32BitsColorDepthID.id(),
            KoColorSpaceRegistry::instance()->rgb8()->profile());
    Q_CHECK_PTR(rgbaFloat32bitcolorSpace);
 
    const KoColorTransformationSP pixelToGmicPixelFormat(
        createTransformation(rgbaFloat32bitcolorSpace));
 
    const size_t greenOffset =
        static_cast<size_t>(gmicImage.m_width) * gmicImage.m_height;
    const size_t blueOffset = greenOffset * 2;
    const size_t alphaOffset = greenOffset * 3;
 
    const auto renderingIntent =
        KoColorConversionTransformation::internalRenderingIntent();
    const auto conversionFlags =
        KoColorConversionTransformation::internalConversionFlags();
 
    const KoColorSpace *colorSpace = dev->colorSpace();
    KisRandomConstAccessorSP it = dev->createRandomConstAccessorNG();
 
    const size_t optimalBufferSize =
        64; // most common numContiguousColumns, tile size?
    std::vector<quint8> floatRGBApixelStorage(
        rgbaFloat32bitcolorSpace->pixelSize() * optimalBufferSize);
    quint8 *floatRGBApixel = floatRGBApixelStorage.data();
 
    const auto pixelSize = rgbaFloat32bitcolorSpace->pixelSize();
    for (int y = 0; y < rc.height(); y++) {
        int x = 0;
        while (x < rc.width()) {
            it->moveTo(rc.x() + x, rc.y() + y);
            auto numContiguousColumns =
                qMin(static_cast<size_t>(it->numContiguousColumns(rc.x() + x)),
                     optimalBufferSize);
            numContiguousColumns =
                qMin(numContiguousColumns, static_cast<size_t>(rc.width() - x));
 
            colorSpace->convertPixelsTo(
                it->rawDataConst(),
                floatRGBApixel,
                rgbaFloat32bitcolorSpace,
                static_cast<quint32>(numContiguousColumns),
                renderingIntent,
                conversionFlags);
            pixelToGmicPixelFormat->transform(
                floatRGBApixel,
                floatRGBApixel,
                static_cast<qint32>(numContiguousColumns));
 
            auto pos = static_cast<size_t>(y) * gmicImage.m_width
                + static_cast<size_t>(x);
            for (size_t bx = 0; bx < numContiguousColumns; bx++) {
                memcpy(gmicImage.m_data + pos,
                       floatRGBApixel + bx * pixelSize,
                       4);
                memcpy(gmicImage.m_data + pos + greenOffset,
                       floatRGBApixel + bx * pixelSize + 4,
                       4);
                memcpy(gmicImage.m_data + pos + blueOffset,
                       floatRGBApixel + bx * pixelSize + 8,
                       4);
                memcpy(gmicImage.m_data + pos + alphaOffset,
                       floatRGBApixel + bx * pixelSize + 12,
                       4);
                pos++;
            }
 
            x += static_cast<int>(numContiguousColumns);
        }
    }
}

References KisPaintDevice::colorSpace(), KoColorSpaceRegistry::colorSpace(), KoColorSpace::convertPixelsTo(), KisPaintDevice::createRandomConstAccessorNG(), createTransformation(), Float32BitsColorDepthID, KoID::id(), KoColorSpaceRegistry::instance(), KoColorConversionTransformation::internalConversionFlags(), KoColorConversionTransformation::internalRenderingIntent(), KisSharedPtr< T >::isNull(), KisQMicImage::m_data, KisQMicImage::m_height, KisQMicImage::m_spectrum, KisQMicImage::m_width, KisRandomConstAccessorNG::moveTo(), KisRandomConstAccessorNG::numContiguousColumns(), KoColorSpace::pixelSize(), KoColorSpace::profile(), KisBaseConstAccessor::rawDataConst(), KoColorSpaceRegistry::rgb8(), and RGBAColorModelID.

convertToGmicImageFast()

void KisQmicSimpleConvertor::convertToGmicImageFast ( KisPaintDeviceSP dev, KisQMicImage & gmicImage, QRect rc = QRect() )

static

Definition at line 514 of file kis_qmic_simple_convertor.cpp.

{
    KoColorTransformationSP pixelToGmicPixelFormat(
        createTransformation(dev->colorSpace()));
    if (!pixelToGmicPixelFormat) {
        dbgPlugins << "Fall-back to slow color conversion method";
        convertToGmicImage(dev, gmicImage, rc);
        return;
    }
 
    if (rc.isEmpty()) {
        dbgPlugins
            << "Image rectangle is empty! Using supplied gmic layer dimension";
        rc = QRect(0,
                   0,
                   static_cast<int>(gmicImage.m_width),
                   static_cast<int>(gmicImage.m_height));
    }
 
    const auto x = rc.x();
    const auto y = rc.y();
    const size_t width = rc.width() < 0 ? 0 : static_cast<size_t>(rc.width());
    const size_t height =
        rc.height() < 0 ? 0 : static_cast<size_t>(rc.height());
 
    const qint32 numChannels = 4;
 
    const size_t greenOffset =
        static_cast<size_t>(gmicImage.m_width) * gmicImage.m_height;
    const size_t blueOffset = greenOffset * 2;
    const size_t alphaOffset = greenOffset * 3;
 
    const std::array<float *, 4> planes = {gmicImage.m_data,
                                           gmicImage.m_data + greenOffset,
                                           gmicImage.m_data + blueOffset,
                                           gmicImage.m_data + alphaOffset};
 
    KisRandomConstAccessorSP it = dev->createRandomConstAccessorNG();
    const auto tileWidth = it->numContiguousColumns(dev->x());
    const auto tileHeight = it->numContiguousRows(dev->y());
 
    Q_ASSERT(tileWidth == 64);
    Q_ASSERT(tileHeight == 64);
 
    const KoColorSpace *rgbaFloat32bitcolorSpace =
        KoColorSpaceRegistry::instance()->colorSpace(
            RGBAColorModelID.id(),
            Float32BitsColorDepthID.id(),
            KoColorSpaceRegistry::instance()->rgb8()->profile());
    Q_CHECK_PTR(rgbaFloat32bitcolorSpace);
    const auto dstPixelSize = rgbaFloat32bitcolorSpace->pixelSize();
    const auto srcPixelSize = dev->pixelSize();
 
    std::vector<quint8> dstTile(dstPixelSize * static_cast<size_t>(tileWidth)
                                * static_cast<size_t>(tileHeight));
 
    size_t dataY = 0;
    int imageY = y;
    int imageX = x;
    it->moveTo(imageX, imageY);
    size_t rowsRemaining = height;
 
    while (rowsRemaining > 0) {
        size_t dataX = 0;
        imageX = x;
        size_t columnsRemaining = width;
        const auto numContiguousImageRows = it->numContiguousRows(imageY);
 
        const auto rowsToWork =
            qMin(numContiguousImageRows, static_cast<qint32>(rowsRemaining));
        const auto convertedTileY = tileHeight - rowsToWork;
        Q_ASSERT(convertedTileY >= 0);
 
        while (columnsRemaining > 0) {
            const auto numContiguousImageColumns =
                static_cast<size_t>(it->numContiguousColumns(imageX));
            const auto columnsToWork =
                qMin(numContiguousImageColumns, columnsRemaining);
            const auto convertedTileX =
                tileWidth - static_cast<qint32>(columnsToWork);
            Q_ASSERT(convertedTileX >= 0);
 
            const auto dataIdx = dataX + dataY * width;
            const auto dstTileIndex =
                convertedTileX + convertedTileY * tileWidth;
            const auto tileRowStride =
                (static_cast<size_t>(tileWidth) - columnsToWork) * dstPixelSize;
            const auto srcTileRowStride =
                (static_cast<size_t>(tileWidth) - columnsToWork) * srcPixelSize;
 
            it->moveTo(imageX, imageY);
            quint8 *tileItStart = dstTile.data() + dstTileIndex * dstPixelSize;
 
            // transform tile row by row
            auto *dstTileIt = tileItStart;
            const auto *srcTileIt = it->rawDataConst();
 
            auto row = rowsToWork;
            while (row > 0) {
                pixelToGmicPixelFormat->transform(
                    srcTileIt,
                    dstTileIt,
                    static_cast<qint32>(columnsToWork));
                srcTileIt += columnsToWork * srcPixelSize;
                srcTileIt += srcTileRowStride;
 
                dstTileIt += columnsToWork * dstPixelSize;
                dstTileIt += tileRowStride;
 
                row--;
            }
 
            // here we want to copy floats to dstTile, so tileItStart has to
            // point to float buffer
            const auto channelSize = sizeof(float);
            for (size_t i = 0; i < numChannels; i++) {
                float *planeIt = planes.at(i) + dataIdx;
                const auto dataStride = (width - columnsToWork);
                quint8 *tileIt = tileItStart;
 
                for (int row = 0; row < rowsToWork; row++) {
                    for (size_t col = 0; col < columnsToWork; col++) {
                        memcpy(planeIt, tileIt, channelSize);
                        tileIt += dstPixelSize;
                        planeIt += 1;
                    }
 
                    tileIt += tileRowStride;
                    planeIt += dataStride;
                }
                // skip channel in tile: red, green, blue, alpha
                tileItStart += channelSize;
            }
 
            imageX += static_cast<int>(columnsToWork);
            dataX += columnsToWork;
            columnsRemaining -= columnsToWork;
        }
 
        imageY += static_cast<int>(rowsToWork);
        dataY += rowsToWork;
        rowsRemaining -= rowsToWork;
    }
}

References KisPaintDevice::colorSpace(), KoColorSpaceRegistry::colorSpace(), convertToGmicImage(), KisPaintDevice::createRandomConstAccessorNG(), createTransformation(), dbgPlugins, Float32BitsColorDepthID, KoID::id(), KoColorSpaceRegistry::instance(), KisQMicImage::m_data, KisQMicImage::m_height, KisQMicImage::m_width, KisRandomConstAccessorNG::moveTo(), KisRandomConstAccessorNG::numContiguousColumns(), KisRandomConstAccessorNG::numContiguousRows(), KisPaintDevice::pixelSize(), KoColorSpace::pixelSize(), KoColorSpace::profile(), KisBaseConstAccessor::rawDataConst(), KoColorSpaceRegistry::rgb8(), RGBAColorModelID, KisPaintDevice::x(), and KisPaintDevice::y().

convertToQImage()

QImage KisQmicSimpleConvertor::convertToQImage ( const KisQMicImage & gmicImage, float gmicMaxChannelValue = 255.0 )

static

Definition at line 956 of file kis_qmic_simple_convertor.cpp.

{
    QImage image = QImage(static_cast<int>(gmicImage.m_width),
                          static_cast<int>(gmicImage.m_height),
                          QImage::Format_ARGB32);
 
    dbgPlugins << image.format() << "first pixel:" << gmicImage.m_data[0]
               << gmicImage.m_width << gmicImage.m_height
               << gmicImage.m_spectrum;
 
    const size_t greenOffset =
        static_cast<size_t>(gmicImage.m_width) * gmicImage.m_height;
    const size_t blueOffset = greenOffset * 2;
 
    // always put 255 to qimage
    const float multiplied = 255.0f / gmicActualMaxChannelValue;
 
    for (int y = 0; y < gmicImage.m_height; y++) {
        QRgb *pixel =
            reinterpret_cast<QRgb *>(image.scanLine(static_cast<int>(y)));
        for (int x = 0; x < gmicImage.m_width; x++) {
            const auto pos = y * gmicImage.m_width + x;
            const float r = gmicImage.m_data[pos] * multiplied;
            const float g = gmicImage.m_data[pos + greenOffset] * multiplied;
            const float b = gmicImage.m_data[pos + blueOffset] * multiplied;
            pixel[x] = qRgb(int(r), int(g), int(b));
        }
    }
    return image;
}

References dbgPlugins, KisQMicImage::m_data, KisQMicImage::m_height, KisQMicImage::m_spectrum, and KisQMicImage::m_width.

stringToBlendingMode()

QString KisQmicSimpleConvertor::stringToBlendingMode ( QString str )

static

Definition at line 1095 of file kis_qmic_simple_convertor.cpp.

{
    if (blendingModeMap.find(blendMode) != blendingModeMap.end())
        return blendingModeMap.at(blendMode);
    return COMPOSITE_OVER;
}

References blendingModeMap, and COMPOSITE_OVER.

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The documentation for this class was generated from the following files:

• plugins/extensions/qmic/kis_qmic_simple_convertor.h
• plugins/extensions/qmic/kis_qmic_simple_convertor.cpp