RGBEExport Class Reference

#include <RGBEExport.h>

Inheritance diagram for RGBEExport:

Public Member Functions
KisImportExportErrorCode	convert (KisDocument *document, QIODevice *io, KisPropertiesConfigurationSP cfg=nullptr) override
KisConfigWidget *	createConfigurationWidget (QWidget *parent, const QByteArray &from="", const QByteArray &to="") const override
	createConfigurationWidget creates a widget that can be used to define the settings for a given import/export filter
KisPropertiesConfigurationSP	defaultConfiguration (const QByteArray &from="", const QByteArray &to="") const override
	defaultConfiguration defines the default settings for the given import export filter
void	initializeCapabilities () override
	RGBEExport (QObject *parent, const QVariantList &)
	~RGBEExport () override=default
Public Member Functions inherited from KisImportExportFilter
virtual QMap< QString, KisExportCheckBase * >	exportChecks ()
	generate and return the list of capabilities of this export filter. The list
virtual bool	exportSupportsGuides () const
	exportSupportsGuides Because guides are in the document and not the image, checking for guides cannot be made an exportCheck.
KisPropertiesConfigurationSP	lastSavedConfiguration (const QByteArray &from="", const QByteArray &to="") const
	lastSavedConfiguration return the last saved configuration for this filter
	Private ()
void	setBatchMode (bool batchmode)
void	setFilename (const QString &filename)
void	setImportUserFeedBackInterface (KisImportUserFeedbackInterface *interface)
void	setMimeType (const QString &mime)
void	setRealFilename (const QString &filename)
void	setUpdater (QPointer< KoUpdater > updater)
virtual bool	supportsIO () const
	Override and return false for the filters that use a library that cannot handle file handles, only file names.
QPointer< KoUpdater >	updater ()
virtual QString	verify (const QString &fileName) const
	Verify whether the given file is correct and readable.
	~KisImportExportFilter () override
	~Private ()

Additional Inherited Members
Public Attributes inherited from KisImportExportFilter
bool	batchmode
QMap< QString, KisExportCheckBase * >	capabilities
QString	filename
KisImportUserFeedbackInterface *	importUserFeedBackInterface {nullptr}
QByteArray	mime
QString	realFilename
QPointer< KoUpdater >	updater
Static Public Attributes inherited from KisImportExportFilter
static const QString	CICPPrimariesTag = "CICPCompatiblePrimaries"
static const QString	CICPTransferCharacteristicsTag = "CICPCompatibleTransferFunction"
static const QString	ColorDepthIDTag = "ColorDepthID"
static const QString	ColorModelIDTag = "ColorModelID"
static const QString	HDRTag = "HDRSupported"
static const QString	ImageContainsTransparencyTag = "ImageContainsTransparency"
static const QString	sRGBTag = "sRGB"
Protected Member Functions inherited from KisImportExportFilter
void	addCapability (KisExportCheckBase *capability)
void	addSupportedColorModels (QList< QPair< KoID, KoID > > supportedColorModels, const QString &name, KisExportCheckBase::Level level=KisExportCheckBase::PARTIALLY)
bool	batchMode () const
QString	filename () const
KisImportUserFeedbackInterface *	importUserFeedBackInterface () const
	KisImportExportFilter (QObject *parent=0)
QByteArray	mimeType () const
QString	realFilename () const
void	setProgress (int value)
QString	verifyZiPBasedFiles (const QString &fileName, const QStringList &filesToCheck) const

Detailed Description

Definition at line 12 of file RGBEExport.h.

Constructor & Destructor Documentation

RGBEExport()

RGBEExport::RGBEExport	(	QObject *	parent,
		const QVariantList &	)

Definition at line 130 of file RGBEExport.cpp.

    : KisImportExportFilter{parent}
{
}

~RGBEExport()

RGBEExport::~RGBEExport ( )

overridedefault

Member Function Documentation

convert()

KisImportExportErrorCode RGBEExport::convert ( KisDocument * document, QIODevice * io, KisPropertiesConfigurationSP configuration = nullptr )

overridevirtual

The filter chain calls this method to perform the actual conversion. The passed mimetypes should be a pair of those you specified in your .desktop file. You have to implement this method to make the filter work.

Returns

The error status, see the #ConversionStatus enum. KisImportExportFilter::OK means that everything is alright.

Implements KisImportExportFilter.

Definition at line 135 of file RGBEExport.cpp.

{
    KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(io->isWritable(), ImportExportCodes::NoAccessToWrite);
 
    KisImageSP image = document->savingImage();
    const QRect bounds = image->bounds();
 
    const KoColorSpace *cs = image->colorSpace();
    const KoColorProfile *targetProfile = KoColorSpaceRegistry::instance()->p709G10Profile();
    const KoColorSpace *targetCs = KoColorSpaceRegistry::instance()->colorSpace(RGBAColorModelID.id(),
                                                                                Float32BitsColorDepthID.id(),
                                                                                targetProfile);
 
    if (image->root()->childCount() > 1) {
        KisLayerUtils::flattenImage(image, nullptr);
        image->waitForDone();
    }
 
    const bool isLinearSrgb = [&]() {
        const bool hasPrimaries = cs->profile()->hasColorants();
        const TransferCharacteristics gamma = cs->profile()->getTransferCharacteristics();
        if (hasPrimaries) {
            const ColorPrimaries primaries = cs->profile()->getColorPrimaries();
            if (gamma == TRC_LINEAR && primaries == PRIMARIES_ITU_R_BT_709_5) {
                return true;
            }
        }
        return false;
    }();
 
    // Color profile will be lost on RGBE export; so convert it to F32, linear sRGB
    if (cs->colorModelId() != RGBAColorModelID || cs->colorDepthId() != Float32BitsColorDepthID || !isLinearSrgb) {
        dbgFile << "Image is not in linear sRGB, converting...";
        image->convertImageColorSpace(targetCs,
                                      KoColorConversionTransformation::internalRenderingIntent(),
                                      KoColorConversionTransformation::internalConversionFlags());
        image->waitForDone();
    }
 
    // Fill transparent pixels with full opacity
    KoColor bgColor(Qt::white, targetCs);
    bgColor.fromKoColor(cfg->getColor("transparencyFillcolor"));
 
    KisPaintDeviceSP dev = new KisPaintDevice(targetCs);
    KisPainter gc(dev);
 
    dev->fill(QRect(0, 0, image->width(), image->height()), bgColor);
    gc.bitBlt(QPoint(0, 0), image->projection(), QRect(0, 0, image->width(), image->height()));
    gc.end();
 
    // Get pixel data and convert it to RGBE format
    const QByteArray pixels = RGBE::floatToRGBE(bounds.width(), bounds.height(), dev);
 
    QByteArray fileBuffer;
    {
        // Write header
        QByteArray header;
        header.append("#?RADIANCE\n");
        header.append("# Created with Krita RGBE Export\n");
        header.append("FORMAT=32-bit_rle_rgbe\n\n");
        header.append(QStringLiteral("-Y %1 +X %2\n").arg(image->height()).arg(image->width()).toUtf8());
 
        fileBuffer.append(header);
    }
 
    {
        // Write pixel data
        const int scanWidth = image->width();
        const int scanHeight = image->height();
 
        if ((scanWidth < 8) || (scanWidth > 0x7fff)) {
            // Invalid width, save without RLE
            fileBuffer.append(pixels);
            io->write(fileBuffer);
        } else {
            // Save with RLE
            QByteArray rleBuffer;
            QByteArray outputBuffer;
 
            int numScanline = scanHeight;
            quint8 rgbe[4];
 
            rleBuffer.resize(sizeof(quint8) * 4 * scanWidth);
            auto *src = reinterpret_cast<const quint8 *>(pixels.data());
            auto *rle = reinterpret_cast<quint8 *>(rleBuffer.data());
 
            while (numScanline-- > 0) {
                rgbe[0] = 2;
                rgbe[1] = 2;
                rgbe[2] = scanWidth >> 8;
                rgbe[3] = scanWidth & 0xFF;
                outputBuffer.append(reinterpret_cast<const char *>(rgbe), sizeof(rgbe));
 
                for (int i = 0; i < scanWidth; i++) {
                    rle[i] = src[0];
                    rle[i + scanWidth] = src[1];
                    rle[i + 2 * scanWidth] = src[2];
                    rle[i + 3 * scanWidth] = src[3];
                    src += 4;
                }
 
                for (int i = 0; i < 4; i++) {
                    RGBE::writeBytesRLE(outputBuffer, &rle[i * scanWidth], scanWidth);
                    fileBuffer.append(outputBuffer);
                    outputBuffer.clear();
                }
            }
 
            io->write(fileBuffer);
        }
    }
 
    return ImportExportCodes::OK;
}

References KisPainter::bitBlt(), KisImage::bounds(), bounds, KisNode::childCount(), KoColorSpace::colorDepthId(), KoColorSpace::colorModelId(), KisImage::colorSpace(), KoColorSpaceRegistry::colorSpace(), KisImage::convertImageColorSpace(), dbgFile, KisPainter::end(), KisPaintDevice::fill(), KisLayerUtils::flattenImage(), Float32BitsColorDepthID, RGBE::floatToRGBE(), KoColor::fromKoColor(), KoColorProfile::getColorPrimaries(), KoColorProfile::getTransferCharacteristics(), KoColorProfile::hasColorants(), KisImage::height(), KoID::id(), KoColorSpaceRegistry::instance(), KoColorConversionTransformation::internalConversionFlags(), KoColorConversionTransformation::internalRenderingIntent(), KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE, ImportExportCodes::NoAccessToWrite, ImportExportCodes::OK, KoColorSpaceRegistry::p709G10Profile(), PRIMARIES_ITU_R_BT_709_5, KoColorSpace::profile(), KisImage::projection(), RGBAColorModelID, KisNodeFacade::root, TRC_LINEAR, KisImage::waitForDone(), KisImage::width(), and RGBE::writeBytesRLE().

createConfigurationWidget()

KisConfigWidget * RGBEExport::createConfigurationWidget ( QWidget * parent, const QByteArray & from = "", const QByteArray & to = "" ) const

overridevirtual

createConfigurationWidget creates a widget that can be used to define the settings for a given import/export filter

Parameters

parent	the owner of the widget; the caller is responsible for deleting
from	The mimetype of the source file/document
to	The mimetype of the destination file/document

Returns

the widget

Reimplemented from KisImportExportFilter.

Definition at line 263 of file RGBEExport.cpp.

{
    return new KisWdgOptionsRGBE(parent);
}

defaultConfiguration()

KisPropertiesConfigurationSP RGBEExport::defaultConfiguration ( const QByteArray & from = "", const QByteArray & to = "" ) const

overridevirtual

defaultConfiguration defines the default settings for the given import export filter

Parameters

from	The mimetype of the source file/document
to	The mimetype of the destination file/document

Returns

a serializable KisPropertiesConfiguration object

Reimplemented from KisImportExportFilter.

Definition at line 268 of file RGBEExport.cpp.

{
    KisPropertiesConfigurationSP cfg = new KisPropertiesConfiguration();
 
    KoColor background(KoColorSpaceRegistry::instance()->rgb8());
    background.fromQColor(Qt::white);
    QVariant v;
    v.setValue(background);
 
    cfg->setProperty("transparencyFillcolor", v);
 
    return cfg;
}

References KoColor::fromQColor(), KoColorSpaceRegistry::instance(), and v.

initializeCapabilities()

void RGBEExport::initializeCapabilities ( )

overridevirtual

Reimplemented from KisImportExportFilter.

Definition at line 250 of file RGBEExport.cpp.

{
    QList<QPair<KoID, KoID>> supportedColorModels;
    addCapability(KisExportCheckRegistry::instance()->get("AnimationCheck")->create(KisExportCheckBase::PARTIALLY));
    addCapability(KisExportCheckRegistry::instance()->get("sRGBProfileCheck")->create(KisExportCheckBase::PARTIALLY));
    addCapability(KisExportCheckRegistry::instance()->get("ExifCheck")->create(KisExportCheckBase::PARTIALLY));
    addCapability(KisExportCheckRegistry::instance()->get("MultiLayerCheck")->create(KisExportCheckBase::PARTIALLY));
    addCapability(KisExportCheckRegistry::instance()->get("TiffExifCheck")->create(KisExportCheckBase::PARTIALLY));
    supportedColorModels << QPair<KoID, KoID>() << QPair<KoID, KoID>(RGBAColorModelID, Float32BitsColorDepthID);
    addSupportedColorModels(supportedColorModels, "RGBE");
}

References KisImportExportFilter::addCapability(), KisImportExportFilter::addSupportedColorModels(), Float32BitsColorDepthID, get(), KisExportCheckRegistry::instance(), KisExportCheckBase::PARTIALLY, and RGBAColorModelID.

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

• plugins/impex/rgbe/RGBEExport.h
• plugins/impex/rgbe/RGBEExport.cpp