diff --git a/src/gui/image/qbmphandler.cpp b/src/gui/image/qbmphandler.cpp index 625ed7c873..87f6ac2822 100644 --- a/src/gui/image/qbmphandler.cpp +++ b/src/gui/image/qbmphandler.cpp @@ -280,17 +280,8 @@ static bool read_dib_body(QDataStream &s, const BMP_INFOHDR &bi, qint64 offset, if (bi.biHeight < 0) h = -h; // support images with negative height - if (image.size() != QSize(w, h) || image.format() != format) { - image = QImage(w, h, format); - if (image.isNull()) // could not create image - return false; - if (ncols) - image.setColorCount(ncols); // Ensure valid QImage - } - - image.setDotsPerMeterX(bi.biXPelsPerMeter); - image.setDotsPerMeterY(bi.biYPelsPerMeter); - + if (!QImageIOHandler::allocateImage(QSize(w, h), format, &image)) + return false; if (ncols > 0) { // read color table image.setColorCount(ncols); uchar rgb[4]; @@ -339,6 +330,9 @@ static bool read_dib_body(QDataStream &s, const BMP_INFOHDR &bi, qint64 offset, blue_scale = 8; } + image.setDotsPerMeterX(bi.biXPelsPerMeter); + image.setDotsPerMeterY(bi.biYPelsPerMeter); + #if 0 qDebug("Rmask: %08x Rshift: %08x Rscale:%08x", red_mask, red_shift, red_scale); qDebug("Gmask: %08x Gshift: %08x Gscale:%08x", green_mask, green_shift, green_scale); diff --git a/src/gui/image/qpnghandler.cpp b/src/gui/image/qpnghandler.cpp index e49c795792..e01c211cda 100644 --- a/src/gui/image/qpnghandler.cpp +++ b/src/gui/image/qpnghandler.cpp @@ -239,7 +239,7 @@ void qpiw_flush_fn(png_structp /* png_ptr */) } static -void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scaledSize, bool *doScaledRead) +bool setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scaledSize, bool *doScaledRead) { png_uint_32 width = 0; png_uint_32 height = 0; @@ -252,6 +252,7 @@ void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scal int num_palette; int interlace_method = PNG_INTERLACE_LAST; png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_method, nullptr, nullptr); + QSize size(width, height); png_set_interlace_handling(png_ptr); if (color_type == PNG_COLOR_TYPE_GRAY) { @@ -259,11 +260,8 @@ void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scal if (bit_depth == 1 && png_get_channels(png_ptr, info_ptr) == 1) { png_set_invert_mono(png_ptr); png_read_update_info(png_ptr, info_ptr); - if (image.size() != QSize(width, height) || image.format() != QImage::Format_Mono) { - image = QImage(width, height, QImage::Format_Mono); - if (image.isNull()) - return; - } + if (!QImageIOHandler::allocateImage(size, QImage::Format_Mono, &image)) + return false; image.setColorCount(2); image.setColor(1, qRgb(0,0,0)); image.setColor(0, qRgb(255,255,255)); @@ -279,12 +277,8 @@ void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scal } else if (bit_depth == 16 && png_get_channels(png_ptr, info_ptr) == 1 && !png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) { - if (image.size() != QSize(width, height) || image.format() != QImage::Format_Grayscale16) { - image = QImage(width, height, QImage::Format_Grayscale16); - if (image.isNull()) - return; - } - + if (!QImageIOHandler::allocateImage(size, QImage::Format_Grayscale16, &image)) + return false; png_read_update_info(png_ptr, info_ptr); if (QSysInfo::ByteOrder == QSysInfo::LittleEndian) png_set_swap(png_ptr); @@ -296,33 +290,23 @@ void setup_qt(QImage& image, png_structp png_ptr, png_infop info_ptr, QSize scal png_set_expand(png_ptr); png_set_gray_to_rgb(png_ptr); QImage::Format format = hasMask ? QImage::Format_RGBA64 : QImage::Format_RGBX64; - if (image.size() != QSize(width, height) || image.format() != format) { - image = QImage(width, height, format); - if (image.isNull()) - return; - } + if (!QImageIOHandler::allocateImage(size, format, &image)) + return false; png_read_update_info(png_ptr, info_ptr); if (QSysInfo::ByteOrder == QSysInfo::LittleEndian) png_set_swap(png_ptr); } else if (bit_depth == 8 && !png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) { png_set_expand(png_ptr); - if (image.size() != QSize(width, height) || image.format() != QImage::Format_Grayscale8) { - image = QImage(width, height, QImage::Format_Grayscale8); - if (image.isNull()) - return; - } - + if (!QImageIOHandler::allocateImage(size, QImage::Format_Grayscale8, &image)) + return false; png_read_update_info(png_ptr, info_ptr); } else { if (bit_depth < 8) png_set_packing(png_ptr); int ncols = bit_depth < 8 ? 1 << bit_depth : 256; png_read_update_info(png_ptr, info_ptr); - if (image.size() != QSize(width, height) || image.format() != QImage::Format_Indexed8) { - image = QImage(width, height, QImage::Format_Indexed8); - if (image.isNull()) - return; - } + if (!QImageIOHandler::allocateImage(size, QImage::Format_Indexed8, &image)) + return false; image.setColorCount(ncols); for (int i=0; iisNull()) { + if (!setup_qt(*outImage, png_ptr, info_ptr, scaledSize, &doScaledRead)) { png_destroy_read_struct(&png_ptr, &info_ptr, &end_info); png_ptr = nullptr; amp.deallocate(); diff --git a/src/gui/image/qppmhandler.cpp b/src/gui/image/qppmhandler.cpp index 16136e6be3..afeb403abb 100644 --- a/src/gui/image/qppmhandler.cpp +++ b/src/gui/image/qppmhandler.cpp @@ -160,11 +160,8 @@ static bool read_pbm_body(QIODevice *device, char type, int w, int h, int mcc, Q } raw = type >= '4'; - if (outImage->size() != QSize(w, h) || outImage->format() != format) { - *outImage = QImage(w, h, format); - if (outImage->isNull()) - return false; - } + if (!QImageIOHandler::allocateImage(QSize(w, h), format, outImage)) + return false; pbm_bpl = (qsizetype(w) * nbits + 7) / 8; // bytes per scanline in PBM diff --git a/src/gui/image/qxbmhandler.cpp b/src/gui/image/qxbmhandler.cpp index c422826035..1de045730f 100644 --- a/src/gui/image/qxbmhandler.cpp +++ b/src/gui/image/qxbmhandler.cpp @@ -147,11 +147,8 @@ static bool read_xbm_body(QIODevice *device, int w, int h, QImage *outImage) p = strstr(buf, "0x"); } while (!p); - if (outImage->size() != QSize(w, h) || outImage->format() != QImage::Format_MonoLSB) { - *outImage = QImage(w, h, QImage::Format_MonoLSB); - if (outImage->isNull()) - return false; - } + if (!QImageIOHandler::allocateImage(QSize(w, h), QImage::Format_MonoLSB, outImage)) + return false; outImage->fill(Qt::color0); // in case the image data does not cover the full image diff --git a/src/gui/image/qxpmhandler.cpp b/src/gui/image/qxpmhandler.cpp index 5dcc915a57..2a02cba824 100644 --- a/src/gui/image/qxpmhandler.cpp +++ b/src/gui/image/qxpmhandler.cpp @@ -881,11 +881,8 @@ static bool read_xpm_body( // create it in correct format (Format_RGB32 vs Format_ARGB32, // depending on absence or presence of "c none", respectively) if (ncols <= 256) { - if (image.size() != QSize(w, h) || image.format() != QImage::Format_Indexed8) { - image = QImage(w, h, QImage::Format_Indexed8); - if (image.isNull()) - return false; - } + if (!QImageIOHandler::allocateImage(QSize(w, h), QImage::Format_Indexed8, &image)) + return false; image.setColorCount(ncols); } @@ -954,11 +951,8 @@ static bool read_xpm_body( // Now we can create 32-bit image of appropriate format QImage::Format format = hasTransparency ? QImage::Format_ARGB32 : QImage::Format_RGB32; - if (image.size() != QSize(w, h) || image.format() != format) { - image = QImage(w, h, format); - if (image.isNull()) - return false; - } + if (!QImageIOHandler::allocateImage(QSize(w, h), format, &image)) + return false; } // Read pixels diff --git a/src/plugins/imageformats/gif/qgifhandler.cpp b/src/plugins/imageformats/gif/qgifhandler.cpp index 078d3d596d..e895e4f91b 100644 --- a/src/plugins/imageformats/gif/qgifhandler.cpp +++ b/src/plugins/imageformats/gif/qgifhandler.cpp @@ -358,7 +358,10 @@ int QGIFFormat::decode(QImage *image, const uchar *buffer, int length, state = Error; return -1; } - (*image) = QImage(swidth, sheight, format); + if (!QImageIOHandler::allocateImage(QSize(swidth, sheight), format, image)) { + state = Error; + return -1; + } bpl = image->bytesPerLine(); bits = image->bits(); if (bits) @@ -425,10 +428,9 @@ int QGIFFormat::decode(QImage *image, const uchar *buffer, int length, return -1; } // We just use the backing store as a byte array - backingstore = QImage(qMax(backingstore.width(), w), - qMax(backingstore.height(), h), - QImage::Format_RGB32); - if (backingstore.isNull()) { + QSize bsSize(qMax(backingstore.width(), w), qMax(backingstore.height(), h)); + if (!QImageIOHandler::allocateImage(bsSize, QImage::Format_RGB32, + &backingstore)) { state = Error; return -1; } diff --git a/src/plugins/imageformats/ico/qicohandler.cpp b/src/plugins/imageformats/ico/qicohandler.cpp index d7b2fc64c2..631d7e8d0f 100644 --- a/src/plugins/imageformats/ico/qicohandler.cpp +++ b/src/plugins/imageformats/ico/qicohandler.cpp @@ -521,8 +521,9 @@ QImage ICOReader::iconAt(int index) else if (icoAttrib.ncolors > 0) format = QImage::Format_Indexed8; - QImage image(icoAttrib.w, icoAttrib.h, format); - if (!image.isNull()) { + QImage image; + const QSize size(icoAttrib.w, icoAttrib.h); + if (QImageIOHandler::allocateImage(size, format, &image)) { findColorInfo(image); if (!image.isNull()) { readBMP(image); diff --git a/src/plugins/imageformats/jpeg/qjpeghandler.cpp b/src/plugins/imageformats/jpeg/qjpeghandler.cpp index 25b0c625fd..1b48e8fc90 100644 --- a/src/plugins/imageformats/jpeg/qjpeghandler.cpp +++ b/src/plugins/imageformats/jpeg/qjpeghandler.cpp @@ -240,10 +240,7 @@ static bool ensureValidImage(QImage *dest, struct jpeg_decompress_struct *info, return false; // unsupported format } - if (dest->size() != size || dest->format() != format) - *dest = QImage(size, format); - - return !dest->isNull(); + return QImageIOHandler::allocateImage(size, format, dest); } static bool read_jpeg_image(QImage *outImage,