diff options
Diffstat (limited to 'src/gui/image/qimage.cpp')
-rw-r--r-- | src/gui/image/qimage.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index 830ec6c4af..92a7d05dda 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -4786,15 +4786,16 @@ void QImage::applyColorTransform(const QColorTransform &transform) }; } -#if QT_CONFIG(thread) +#if QT_CONFIG(thread) && !defined(Q_OS_WASM) int segments = sizeInBytes() / (1<<16); segments = std::min(segments, height()); - if (segments > 1) { + QThreadPool *threadPool = QThreadPool::globalInstance(); + if (segments > 1 && !threadPool->contains(QThread::currentThread())) { QSemaphore semaphore; int y = 0; for (int i = 0; i < segments; ++i) { int yn = (height() - y) / (segments - i); - QThreadPool::globalInstance()->start([&, y, yn]() { + threadPool->start([&, y, yn]() { transformSegment(y, y + yn); semaphore.release(1); }); |