diff options
| -rw-r--r-- | src/gui/painting/qblendfunctions.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gui/painting/qblendfunctions.cpp b/src/gui/painting/qblendfunctions.cpp index b3710411c9..dbdd82e432 100644 --- a/src/gui/painting/qblendfunctions.cpp +++ b/src/gui/painting/qblendfunctions.cpp @@ -422,8 +422,8 @@ static void qt_blend_argb32pm_on_a2rgb30pm(uchar *destPixels, int dbpl, const_alpha = (const_alpha * 255) >> 8; for (int y=0; y<h; ++y) { for (int x=0; x<w; ++x) { - uint s = BYTE_MUL(src[x], const_alpha); - dst[x] = qConvertArgb32ToA2rgb30<PixelOrder>(s) + BYTE_MUL_RGB30(dst[x], 255 - qAlpha(s)); + uint s = src[x]; + dst[x] = BYTE_MUL_RGB30(qConvertArgb32ToA2rgb30<PixelOrder>(s), const_alpha) + BYTE_MUL_RGB30(dst[x], 255 - qt_div_255(qAlpha(s) * const_alpha)); } dst = (quint32 *)(((uchar *) dst) + dbpl); src = (const quint32 *)(((const uchar *) src) + sbpl); |