From 2d57dc2f33582833efff5ccc950ec863765eaedb Mon Sep 17 00:00:00 2001 From: Allan Sandfeld Jensen Date: Thu, 23 Jan 2020 13:25:18 +0100 Subject: Allow benign errors when writing PNGs Otherwise we can end up not writing anything due to recoverable libpng error reports. Change-Id: I4d4db42305482babffbe2bcf25535a35b51502a9 Fixes: QTBUG-81604 Reviewed-by: Boudewijn Rempt Reviewed-by: Eirik Aavitsland --- src/gui/image/qpnghandler.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/gui/image/qpnghandler.cpp b/src/gui/image/qpnghandler.cpp index 4ab45337b0..fa67d38f7a 100644 --- a/src/gui/image/qpnghandler.cpp +++ b/src/gui/image/qpnghandler.cpp @@ -915,7 +915,10 @@ bool QPNGImageWriter::writeImage(const QImage& image, volatile int compression_i return false; } - png_set_error_fn(png_ptr, 0, 0, qt_png_warning); + png_set_error_fn(png_ptr, nullptr, nullptr, qt_png_warning); +#ifdef PNG_BENIGN_ERRORS_SUPPORTED + png_set_benign_errors(png_ptr, 1); +#endif info_ptr = png_create_info_struct(png_ptr); if (!info_ptr) { -- cgit v1.2.3