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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 <boud@valdyas.org>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
bb10
Allan Sandfeld Jensen 2020-01-23 13:25:18 +01:00
parent 0b28f1e3ba
commit 2d57dc2f33
1 changed files with 4 additions and 1 deletions
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5
src/gui/image/qpnghandler.cpp
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@ -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) {