diff --git a/krita/plugins/formats/jpeg/kis_jpeg_converter.cc b/krita/plugins/formats/jpeg/kis_jpeg_converter.cc index 191ab9ff3a4..4bc259ecbbd 100644 --- a/krita/plugins/formats/jpeg/kis_jpeg_converter.cc +++ b/krita/plugins/formats/jpeg/kis_jpeg_converter.cc @@ -1,749 +1,754 @@ /* * Copyright (c) 2005 Cyrille Berger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ #include "kis_jpeg_converter.h" #include #include #include #ifdef HAVE_LCMS2 # include #else # include #endif extern "C" { #include } #include #include #include #include #include #include #include #include #include #include #include #include #include #include +#include "KoColorModelStandardIds.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "kis_iterator_ng.h" #include #define ICC_MARKER (JPEG_APP0 + 2) /* JPEG marker code for ICC */ #define ICC_OVERHEAD_LEN 14 /* size of non-profile data in APP2 */ #define MAX_BYTES_IN_MARKER 65533 /* maximum data len of a JPEG marker */ #define MAX_DATA_BYTES_IN_MARKER (MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN) const char photoshopMarker[] = "Photoshop 3.0\0"; //const char photoshopBimId_[] = "8BIM"; const uint16_t photoshopIptc = 0x0404; const char xmpMarker[] = "http://ns.adobe.com/xap/1.0/\0"; const QByteArray photoshopIptc_((char*)&photoshopIptc, 2); namespace { J_COLOR_SPACE getColorTypeforColorSpace(const KoColorSpace * cs) { if (KoID(cs->id()) == KoID("GRAYA") || cs->id() == "GRAYAU16" || cs->id() == "GRAYA16") { return JCS_GRAYSCALE; } if (KoID(cs->id()) == KoID("RGBA") || KoID(cs->id()) == KoID("RGBA16")) { return JCS_RGB; } if (KoID(cs->id()) == KoID("CMYK") || KoID(cs->id()) == KoID("CMYKAU16")) { return JCS_CMYK; } return JCS_UNKNOWN; } QString getColorSpaceModelForColorType(J_COLOR_SPACE color_type) { dbgFile << "color_type =" << color_type; if (color_type == JCS_GRAYSCALE) { return GrayAColorModelID.id(); } else if (color_type == JCS_RGB) { return RGBAColorModelID.id(); } else if (color_type == JCS_CMYK) { return CMYKAColorModelID.id(); } return ""; } } KisJPEGConverter::KisJPEGConverter(KisDocument *doc, bool batchMode) { m_doc = doc; m_job = 0; m_stop = false; m_batchMode = batchMode; } KisJPEGConverter::~KisJPEGConverter() { } KisImageBuilder_Result KisJPEGConverter::decode(const KUrl& uri) { struct jpeg_decompress_struct cinfo; struct jpeg_error_mgr jerr; cinfo.err = jpeg_std_error(&jerr); jpeg_create_decompress(&cinfo); Q_ASSERT(uri.isLocalFile()); // open the file QFile file(uri.toLocalFile()); if (!file.exists()) { return (KisImageBuilder_RESULT_NOT_EXIST); } if (!file.open(QIODevice::ReadOnly)) { return (KisImageBuilder_RESULT_BAD_FETCH); } KisJPEGSource::setSource(&cinfo, &file); jpeg_save_markers(&cinfo, JPEG_COM, 0xFFFF); /* Save APP0..APP15 markers */ for (int m = 0; m < 16; m++) jpeg_save_markers(&cinfo, JPEG_APP0 + m, 0xFFFF); // setup_read_icc_profile(&cinfo); // read header jpeg_read_header(&cinfo, true); // start reading jpeg_start_decompress(&cinfo); // Get the colorspace QString modelId = getColorSpaceModelForColorType(cinfo.out_color_space); if (modelId.isEmpty()) { dbgFile << "unsupported colorspace :" << cinfo.out_color_space; jpeg_destroy_decompress(&cinfo); return KisImageBuilder_RESULT_UNSUPPORTED_COLORSPACE; } uchar* profile_data; uint profile_len; const KoColorProfile* profile = 0; QByteArray profile_rawdata; if (read_icc_profile(&cinfo, &profile_data, &profile_len)) { profile_rawdata.resize(profile_len); memcpy(profile_rawdata.data(), profile_data, profile_len); cmsHPROFILE hProfile = cmsOpenProfileFromMem(profile_data, profile_len); if (hProfile != (cmsHPROFILE) NULL) { profile = KoColorSpaceRegistry::instance()->createColorProfile(modelId, Integer8BitsColorDepthID.id(), profile_rawdata); Q_CHECK_PTR(profile); dbgFile <<"profile name:" << profile->name() <<" product information:" << profile->info(); if (!profile->isSuitableForOutput()) { dbgFile << "the profile is not suitable for output and therefore cannot be used in krita, we need to convert the image to a standard profile"; // TODO: in ko2 popup a selection menu to inform the user } } } // Check that the profile is used by the color space if (profile && !KoColorSpaceRegistry::instance()->colorSpaceFactory( KoColorSpaceRegistry::instance()->colorSpaceId( modelId, Integer8BitsColorDepthID.id()))->profileIsCompatible(profile)) { warnFile << "The profile " << profile->name() << " is not compatible with the color space model " << modelId; profile = 0; } // Retrieve a pointer to the colorspace const KoColorSpace* cs; if (profile && profile->isSuitableForOutput()) { dbgFile << "image has embedded profile:" << profile -> name() << ""; cs = KoColorSpaceRegistry::instance()->colorSpace(modelId, Integer8BitsColorDepthID.id(), profile); } else cs = KoColorSpaceRegistry::instance()->colorSpace(modelId, Integer8BitsColorDepthID.id(), ""); if (cs == 0) { dbgFile << "unknown colorspace"; jpeg_destroy_decompress(&cinfo); return KisImageBuilder_RESULT_UNSUPPORTED_COLORSPACE; } // TODO fixit // Create the cmsTransform if needed KoColorTransformation* transform = 0; if (profile && !profile->isSuitableForOutput()) { transform = KoColorSpaceRegistry::instance()->colorSpace(modelId, Integer8BitsColorDepthID.id(), profile)->createColorConverter(cs, KoColorConversionTransformation::InternalRenderingIntent, KoColorConversionTransformation::InternalConversionFlags); } // Apparently an invalid transform was created from the profile. See bug https://bugs.kde.org/show_bug.cgi?id=255451. // After 2.3: warn the user! if (transform && !transform->isValid()) { delete transform; transform = 0; } // Creating the KisImageWSP if (! m_image) { m_image = new KisImage(m_doc->createUndoStore(), cinfo.image_width, cinfo.image_height, cs, "built image"); Q_CHECK_PTR(m_image); } // Set resolution double xres = 72, yres = 72; if (cinfo.density_unit == 1) { xres = cinfo.X_density; yres = cinfo.Y_density; } else if (cinfo.density_unit == 2) { xres = cinfo.X_density * 2.54; yres = cinfo.Y_density * 2.54; } if (xres < 72) { xres = 72; } if (yres < 72) { yres = 72; } m_image->setResolution(POINT_TO_INCH(xres), POINT_TO_INCH(yres)); // It is the "invert" macro because we convert from pointer-per-inchs to points // Create layer KisPaintLayerSP layer = KisPaintLayerSP(new KisPaintLayer(m_image.data(), m_image -> nextLayerName(), quint8_MAX)); // Read data JSAMPROW row_pointer = new JSAMPLE[cinfo.image_width*cinfo.num_components]; for (; cinfo.output_scanline < cinfo.image_height;) { KisHLineIteratorSP it = layer->paintDevice()->createHLineIteratorNG(0, cinfo.output_scanline, cinfo.image_width); jpeg_read_scanlines(&cinfo, &row_pointer, 1); quint8 *src = row_pointer; switch (cinfo.out_color_space) { case JCS_GRAYSCALE: do { quint8 *d = it->rawData(); d[0] = *(src++); if (transform) transform->transform(d, d, 1); d[1] = quint8_MAX; } while (it->nextPixel()); break; case JCS_RGB: do { quint8 *d = it->rawData(); d[2] = *(src++); d[1] = *(src++); d[0] = *(src++); if (transform) transform->transform(d, d, 1); d[3] = quint8_MAX; } while (it->nextPixel()); break; case JCS_CMYK: do { quint8 *d = it->rawData(); d[0] = quint8_MAX - *(src++); d[1] = quint8_MAX - *(src++); d[2] = quint8_MAX - *(src++); d[3] = quint8_MAX - *(src++); if (transform) transform->transform(d, d, 1); d[4] = quint8_MAX; } while (it->nextPixel()); break; default: return KisImageBuilder_RESULT_UNSUPPORTED; } } m_image->addNode(KisNodeSP(layer.data()), m_image->rootLayer().data()); // Read exif information dbgFile << "Looking for exif information"; for (jpeg_saved_marker_ptr marker = cinfo.marker_list; marker != NULL; marker = marker->next) { dbgFile << "Marker is" << marker->marker; if (marker->marker != (JOCTET)(JPEG_APP0 + 1) || marker->data_length < 14) { continue; /* Exif data is in an APP1 marker of at least 14 octets */ } if (GETJOCTET(marker->data[0]) != (JOCTET) 0x45 || GETJOCTET(marker->data[1]) != (JOCTET) 0x78 || GETJOCTET(marker->data[2]) != (JOCTET) 0x69 || GETJOCTET(marker->data[3]) != (JOCTET) 0x66 || GETJOCTET(marker->data[4]) != (JOCTET) 0x00 || GETJOCTET(marker->data[5]) != (JOCTET) 0x00) continue; /* no Exif header */ dbgFile << "Found exif information of length :" << marker->data_length; KisMetaData::IOBackend* exifIO = KisMetaData::IOBackendRegistry::instance()->value("exif"); Q_ASSERT(exifIO); QByteArray byteArray((const char*)marker->data + 6, marker->data_length - 6); QBuffer buf(&byteArray); exifIO->loadFrom(layer->metaData(), &buf); // Interpret orientation tag if (layer->metaData()->containsEntry("http://ns.adobe.com/tiff/1.0/", "Orientation")) { KisMetaData::Entry& entry = layer->metaData()->getEntry("http://ns.adobe.com/tiff/1.0/", "Orientation"); if (entry.value().type() == KisMetaData::Value::Variant) { switch (entry.value().asVariant().toInt()) { case 2: KisTransformWorker::mirrorY(layer->paintDevice()); break; case 3: image()->rotateImage(M_PI); break; case 4: KisTransformWorker::mirrorX(layer->paintDevice()); break; case 5: image()->rotateImage(M_PI / 2); KisTransformWorker::mirrorY(layer->paintDevice()); break; case 6: image()->rotateImage(M_PI / 2); break; case 7: image()->rotateImage(M_PI / 2); KisTransformWorker::mirrorX(layer->paintDevice()); break; case 8: image()->rotateImage(-M_PI / 2 + M_PI*2); break; default: break; } } entry.value().setVariant(1); } break; } dbgFile << "Looking for IPTC information"; for (jpeg_saved_marker_ptr marker = cinfo.marker_list; marker != NULL; marker = marker->next) { dbgFile << "Marker is" << marker->marker; if (marker->marker != (JOCTET)(JPEG_APP0 + 13) || marker->data_length < 14) { continue; /* IPTC data is in an APP13 marker of at least 16 octets */ } if (memcmp(marker->data, photoshopMarker, 14) != 0) { for (int i = 0; i < 14; i++) { dbgFile << (int)(*(marker->data + i)) << "" << (int)(photoshopMarker[i]); } dbgFile << "No photoshop marker"; continue; /* No IPTC Header */ } dbgFile << "Found Photoshop information of length :" << marker->data_length; KisMetaData::IOBackend* iptcIO = KisMetaData::IOBackendRegistry::instance()->value("iptc"); Q_ASSERT(iptcIO); const Exiv2::byte *record = 0; uint32_t sizeIptc = 0; uint32_t sizeHdr = 0; // Find actual Iptc data within the APP13 segment if (!Exiv2::Photoshop::locateIptcIrb((Exiv2::byte*)(marker->data + 14), marker->data_length - 14, &record, &sizeHdr, &sizeIptc)) { if (sizeIptc) { // Decode the IPTC data QByteArray byteArray((const char*)(record + sizeHdr), sizeIptc); iptcIO->loadFrom(layer->metaData(), new QBuffer(&byteArray)); } else { dbgFile << "IPTC Not found in Photoshop marker"; } } break; } dbgFile << "Looking for XMP information"; for (jpeg_saved_marker_ptr marker = cinfo.marker_list; marker != NULL; marker = marker->next) { dbgFile << "Marker is" << marker->marker; if (marker->marker != (JOCTET)(JPEG_APP0 + 1) || marker->data_length < 31) { continue; /* XMP data is in an APP1 marker of at least 31 octets */ } if (memcmp(marker->data, xmpMarker, 29) != 0) { dbgFile << "Not XMP marker"; continue; /* No xmp Header */ } dbgFile << "Found XMP Marker of length " << marker->data_length; QByteArray byteArray((const char*)marker->data + 29, marker->data_length - 29); KisMetaData::IOBackend* xmpIO = KisMetaData::IOBackendRegistry::instance()->value("xmp"); Q_ASSERT(xmpIO); xmpIO->loadFrom(layer->metaData(), new QBuffer(&byteArray)); break; } // Dump loaded metadata layer->metaData()->debugDump(); // Check whether the metadata has resolution info, too... if (cinfo.density_unit == 0 && layer->metaData()->containsEntry("tiff:XResolution") && layer->metaData()->containsEntry("tiff:YResolution")) { double xres = layer->metaData()->getEntry("tiff:XResolution").value().asDouble(); double yres = layer->metaData()->getEntry("tiff:YResolution").value().asDouble(); if (xres != 0 && yres != 0) { m_image->setResolution(POINT_TO_INCH(xres), POINT_TO_INCH(yres)); // It is the "invert" macro because we convert from pointer-per-inchs to points } } // Finish decompression jpeg_finish_decompress(&cinfo); jpeg_destroy_decompress(&cinfo); delete [] row_pointer; return KisImageBuilder_RESULT_OK; } KisImageBuilder_Result KisJPEGConverter::buildImage(const KUrl& uri) { if (uri.isEmpty()) return KisImageBuilder_RESULT_NO_URI; if (!KIO::NetAccess::exists(uri, KIO::NetAccess::SourceSide, QApplication::activeWindow())) { return KisImageBuilder_RESULT_NOT_EXIST; } // We're not set up to handle asynchronous loading at the moment. KisImageBuilder_Result result = KisImageBuilder_RESULT_FAILURE; QString tmpFile; if (KIO::NetAccess::download(uri, tmpFile, QApplication::activeWindow())) { KUrl uriTF; uriTF.setPath(tmpFile); result = decode(uriTF); KIO::NetAccess::removeTempFile(tmpFile); } return result; } KisImageWSP KisJPEGConverter::image() { return m_image; } KisImageBuilder_Result KisJPEGConverter::buildFile(const KUrl& uri, KisPaintLayerSP layer, vKisAnnotationSP_it /*annotationsStart*/, vKisAnnotationSP_it /*annotationsEnd*/, KisJPEGOptions options, KisMetaData::Store* metaData) { if (!layer) return KisImageBuilder_RESULT_INVALID_ARG; KisImageWSP image = KisImageWSP(layer->image()); if (!image) return KisImageBuilder_RESULT_EMPTY; if (uri.isEmpty()) return KisImageBuilder_RESULT_NO_URI; if (!uri.isLocalFile()) return KisImageBuilder_RESULT_NOT_LOCAL; const KoColorSpace * cs = layer->colorSpace(); J_COLOR_SPACE color_type = getColorTypeforColorSpace(cs); + if (!m_batchMode && cs->colorDepthId() != Integer8BitsColorDepthID) { + QMessageBox::information(0, i18nc("@title:window", "Krita"), i18n("Warning: JPEG only supports 8 bits per channel. Your image uses: %1. Krita will save your image as 8 bits per channel.", cs->name())); + } + if (color_type == JCS_UNKNOWN) { if (!m_batchMode) { QMessageBox::information(0, i18nc("@title:window", "Krita"), i18n("Cannot export images in %1.\nWill save as RGB.", cs->name())); } KUndo2Command *tmp = layer->paintDevice()->convertTo(KoColorSpaceRegistry::instance()->rgb8(), KoColorConversionTransformation::InternalRenderingIntent, KoColorConversionTransformation::InternalConversionFlags); delete tmp; cs = KoColorSpaceRegistry::instance()->rgb8(); color_type = JCS_RGB; } if (options.forceSRGB) { const KoColorSpace* dst = KoColorSpaceRegistry::instance()->colorSpace(RGBAColorModelID.id(), layer->colorSpace()->colorDepthId().id(), "sRGB built-in - (lcms internal)"); KUndo2Command *tmp = layer->paintDevice()->convertTo(dst); delete tmp; cs = dst; color_type = JCS_RGB; } // Open file for writing QFile file(uri.toLocalFile()); if (!file.open(QIODevice::WriteOnly)) { return (KisImageBuilder_RESULT_FAILURE); } uint height = image->height(); uint width = image->width(); // Initialize structure struct jpeg_compress_struct cinfo; jpeg_create_compress(&cinfo); // Initialize error output struct jpeg_error_mgr jerr; cinfo.err = jpeg_std_error(&jerr); // Initialize output stream KisJPEGDestination::setDestination(&cinfo, &file); cinfo.image_width = width; // image width and height, in pixels cinfo.image_height = height; cinfo.input_components = cs->colorChannelCount(); // number of color channels per pixel */ cinfo.in_color_space = color_type; // colorspace of input image // Set default compression parameters jpeg_set_defaults(&cinfo); // Customize them jpeg_set_quality(&cinfo, options.quality, options.baseLineJPEG); if (options.progressive) { jpeg_simple_progression(&cinfo); } // Optimize ? cinfo.optimize_coding = options.optimize; // Smoothing cinfo.smoothing_factor = options.smooth; // Subsampling switch (options.subsampling) { default: case 0: { cinfo.comp_info[0].h_samp_factor = 2; cinfo.comp_info[0].v_samp_factor = 2; cinfo.comp_info[1].h_samp_factor = 1; cinfo.comp_info[1].v_samp_factor = 1; cinfo.comp_info[2].h_samp_factor = 1; cinfo.comp_info[2].v_samp_factor = 1; } break; case 1: { cinfo.comp_info[0].h_samp_factor = 2; cinfo.comp_info[0].v_samp_factor = 1; cinfo.comp_info[1].h_samp_factor = 1; cinfo.comp_info[1].v_samp_factor = 1; cinfo.comp_info[2].h_samp_factor = 1; cinfo.comp_info[2].v_samp_factor = 1; } break; case 2: { cinfo.comp_info[0].h_samp_factor = 1; cinfo.comp_info[0].v_samp_factor = 2; cinfo.comp_info[1].h_samp_factor = 1; cinfo.comp_info[1].v_samp_factor = 1; cinfo.comp_info[2].h_samp_factor = 1; cinfo.comp_info[2].v_samp_factor = 1; } break; case 3: { cinfo.comp_info[0].h_samp_factor = 1; cinfo.comp_info[0].v_samp_factor = 1; cinfo.comp_info[1].h_samp_factor = 1; cinfo.comp_info[1].v_samp_factor = 1; cinfo.comp_info[2].h_samp_factor = 1; cinfo.comp_info[2].v_samp_factor = 1; } break; } // Save resolution cinfo.X_density = INCH_TO_POINT(image->xRes()); // It is the "invert" macro because we convert from pointer-per-inchs to points cinfo.Y_density = INCH_TO_POINT(image->yRes()); // It is the "invert" macro because we convert from pointer-per-inchs to points cinfo.density_unit = 1; cinfo.write_JFIF_header = 1; // Start compression jpeg_start_compress(&cinfo, true); // Save exif and iptc information if any available if (metaData && !metaData->empty()) { metaData->applyFilters(options.filters); // Save EXIF if (options.exif) { dbgFile << "Trying to save exif information"; KisMetaData::IOBackend* exifIO = KisMetaData::IOBackendRegistry::instance()->value("exif"); Q_ASSERT(exifIO); QBuffer buffer; exifIO->saveTo(metaData, &buffer, KisMetaData::IOBackend::JpegHeader); dbgFile << "Exif information size is" << buffer.data().size(); QByteArray data = buffer.data(); if (data.size() < MAX_DATA_BYTES_IN_MARKER) { jpeg_write_marker(&cinfo, JPEG_APP0 + 1, (const JOCTET*)data.data(), data.size()); } else { dbgFile << "EXIF information could not be saved."; // TODO: warn the user ? } } // Save IPTC if (options.iptc) { dbgFile << "Trying to save exif information"; KisMetaData::IOBackend* iptcIO = KisMetaData::IOBackendRegistry::instance()->value("iptc"); Q_ASSERT(iptcIO); QBuffer buffer; iptcIO->saveTo(metaData, &buffer, KisMetaData::IOBackend::JpegHeader); dbgFile << "IPTC information size is" << buffer.data().size(); QByteArray data = buffer.data(); if (data.size() < MAX_DATA_BYTES_IN_MARKER) { jpeg_write_marker(&cinfo, JPEG_APP0 + 13, (const JOCTET*)data.data(), data.size()); } else { dbgFile << "IPTC information could not be saved."; // TODO: warn the user ? } } // Save XMP if (options.xmp) { dbgFile << "Trying to save XMP information"; KisMetaData::IOBackend* xmpIO = KisMetaData::IOBackendRegistry::instance()->value("xmp"); Q_ASSERT(xmpIO); QBuffer buffer; xmpIO->saveTo(metaData, &buffer, KisMetaData::IOBackend::JpegHeader); dbgFile << "XMP information size is" << buffer.data().size(); QByteArray data = buffer.data(); if (data.size() < MAX_DATA_BYTES_IN_MARKER) { jpeg_write_marker(&cinfo, JPEG_APP0 + 14, (const JOCTET*)data.data(), data.size()); } else { dbgFile << "XMP information could not be saved."; // TODO: warn the user ? } } } const KoColorProfile* colorProfile = layer->colorSpace()->profile(); QByteArray colorProfileData = colorProfile->rawData(); KisPaintDeviceSP dev = new KisPaintDevice(layer->colorSpace()); KoColor c(options.transparencyFillColor, layer->colorSpace()); dev->fill(QRect(0, 0, width, height), c); KisPainter gc(dev); gc.bitBlt(QPoint(0, 0), layer->paintDevice(), QRect(0, 0, width, height)); gc.end(); write_icc_profile(& cinfo, (uchar*) colorProfileData.data(), colorProfileData.size()); // Write data information JSAMPROW row_pointer = new JSAMPLE[width*cinfo.input_components]; int color_nb_bits = 8 * layer->paintDevice()->pixelSize() / layer->paintDevice()->channelCount(); for (; cinfo.next_scanline < height;) { KisHLineConstIteratorSP it = dev->createHLineConstIteratorNG(0, cinfo.next_scanline, width); quint8 *dst = row_pointer; switch (color_type) { case JCS_GRAYSCALE: if (color_nb_bits == 16) { do { //const quint16 *d = reinterpret_cast(it->oldRawData()); const quint8 *d = it->oldRawData(); *(dst++) = cs->scaleToU8(d, 0);//d[0] / quint8_MAX; } while (it->nextPixel()); } else { do { const quint8 *d = it->oldRawData(); *(dst++) = d[0]; } while (it->nextPixel()); } break; case JCS_RGB: if (color_nb_bits == 16) { do { //const quint16 *d = reinterpret_cast(it->oldRawData()); const quint8 *d = it->oldRawData(); *(dst++) = cs->scaleToU8(d, 2); //d[2] / quint8_MAX; *(dst++) = cs->scaleToU8(d, 1); //d[1] / quint8_MAX; *(dst++) = cs->scaleToU8(d, 0); //d[0] / quint8_MAX; } while (it->nextPixel()); } else { do { const quint8 *d = it->oldRawData(); *(dst++) = d[2]; *(dst++) = d[1]; *(dst++) = d[0]; } while (it->nextPixel()); } break; case JCS_CMYK: if (color_nb_bits == 16) { do { //const quint16 *d = reinterpret_cast(it->oldRawData()); const quint8 *d = it->oldRawData(); - *(dst++) = cs->scaleToU8(d, 0);//quint8_MAX - d[0] / quint8_MAX; - *(dst++) = cs->scaleToU8(d, 1);//quint8_MAX - d[1] / quint8_MAX; - *(dst++) = cs->scaleToU8(d, 2);//quint8_MAX - d[2] / quint8_MAX; - *(dst++) = cs->scaleToU8(d, 3);//quint8_MAX - d[3] / quint8_MAX; + *(dst++) = quint8_MAX - cs->scaleToU8(d, 0);//quint8_MAX - d[0] / quint8_MAX; + *(dst++) = quint8_MAX - cs->scaleToU8(d, 1);//quint8_MAX - d[1] / quint8_MAX; + *(dst++) = quint8_MAX - cs->scaleToU8(d, 2);//quint8_MAX - d[2] / quint8_MAX; + *(dst++) = quint8_MAX - cs->scaleToU8(d, 3);//quint8_MAX - d[3] / quint8_MAX; } while (it->nextPixel()); } else { do { const quint8 *d = it->oldRawData(); *(dst++) = quint8_MAX - d[0]; *(dst++) = quint8_MAX - d[1]; *(dst++) = quint8_MAX - d[2]; *(dst++) = quint8_MAX - d[3]; } while (it->nextPixel()); } break; default: KIO::del(uri); // asynchronous, but I guess that's ok delete [] row_pointer; jpeg_destroy_compress(&cinfo); return KisImageBuilder_RESULT_UNSUPPORTED; } jpeg_write_scanlines(&cinfo, &row_pointer, 1); } // Writing is over jpeg_finish_compress(&cinfo); file.close(); delete [] row_pointer; // Free memory jpeg_destroy_compress(&cinfo); return KisImageBuilder_RESULT_OK; } void KisJPEGConverter::cancel() { m_stop = true; } #include "kis_jpeg_converter.moc"