diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsmime.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsmime.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/plugins/platforms/windows/qwindowsmime.cpp b/src/plugins/platforms/windows/qwindowsmime.cpp index fe9e1fe31f..9bc79a10f9 100644 --- a/src/plugins/platforms/windows/qwindowsmime.cpp +++ b/src/plugins/platforms/windows/qwindowsmime.cpp @@ -149,7 +149,10 @@ static bool qt_write_dibv5(QDataStream &s, QImage image) return false; //depth will be always 32 - int bpl_bmp = image.width()*4; + qsizetype bpl_bmp = qsizetype(image.width()) * 4; + qsizetype size = bpl_bmp * image.height(); + if (qsizetype(DWORD(size)) != size) + return false; BMP_BITMAPV5HEADER bi; ZeroMemory(&bi, sizeof(bi)); @@ -261,11 +264,11 @@ static bool qt_read_dibv5(QDataStream &s, QImage &image) const int blue_shift = calc_shift(blue_mask); const int alpha_shift = alpha_mask ? calc_shift(alpha_mask) : 0u; - const int bpl = image.bytesPerLine(); + const qsizetype bpl = image.bytesPerLine(); uchar *data = image.bits(); auto *buf24 = new uchar[bpl]; - const int bpl24 = ((w * nbits + 31) / 32) * 4; + const qsizetype bpl24 = ((qsizetype(w) * nbits + 31) / 32) * 4; while (--h >= 0) { QRgb *p = reinterpret_cast<QRgb *>(data + h * bpl); |