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allocationLimit = 0 means no limit

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This commit is contained in:
Albert Astals Cid
2025-12-09 01:06:10 +01:00
parent 282c277204
commit 956b86c4de
2 changed files with 16 additions and 9 deletions
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14
src/imageformats/jp2.cpp
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@ -352,11 +352,15 @@ public:
}
// OpenJPEG uses a shadow copy @32-bit/channel so we need to do a check
auto maxBytes = qint64(QImageReader::allocationLimit()) * 1024 * 1024;
auto neededBytes = qint64(width) * height * nchannels * 4;
if (maxBytes > 0 && neededBytes > maxBytes) {
qCCritical(LOG_JP2PLUGIN) << "Allocation limit set to" << (maxBytes / 1024 / 1024) << "MiB but" << (neededBytes / 1024 / 1024) << "MiB are needed!";
return false;
const int allocationLimit = QImageReader::allocationLimit();
if (allocationLimit > 0) {
auto maxBytes = qint64(allocationLimit) * 1024 * 1024;
auto neededBytes = qint64(width) * height * nchannels * 4;
if (maxBytes > 0 && neededBytes > maxBytes) {
qCCritical(LOG_JP2PLUGIN) << "Allocation limit set to" << (maxBytes / 1024 / 1024) << "MiB but" << (neededBytes / 1024 / 1024)
<< "MiB are needed!";
return false;
}
}
return true;

11
src/imageformats/xcf.cpp
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@ -1389,10 +1389,13 @@ bool XCFImageFormat::composeTiles(XCFImage &xcf_image)
// tiles of 64x64 pixels. The required memory to build the image is at least doubled because tiles are loaded
// and then the final image is created by copying the tiles inside it.
// NOTE: on Windows to open a 10GiB image the plugin uses 28GiB of RAM
qint64 channels = 1 + (layer.type == RGB_GIMAGE ? 2 : 0) + (layer.type == RGBA_GIMAGE ? 3 : 0);
if (qint64(layer.width) * qint64(layer.height) * channels * 2ll / 1024ll / 1024ll > QImageReader::allocationLimit()) {
qCDebug(XCFPLUGIN) << "Rejecting image as it exceeds the current allocation limit of" << QImageReader::allocationLimit() << "megabytes";
return false;
const qint64 channels = 1 + (layer.type == RGB_GIMAGE ? 2 : 0) + (layer.type == RGBA_GIMAGE ? 3 : 0);
const int allocationLimit = QImageReader::allocationLimit();
if (allocationLimit > 0) {
if (qint64(layer.width) * qint64(layer.height) * channels * 2ll / 1024ll / 1024ll > allocationLimit) {
qCDebug(XCFPLUGIN) << "Rejecting image as it exceeds the current allocation limit of" << allocationLimit << "megabytes";
return false;
}
}
#endif