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| author | Anders Bakken <anders.bakken@nokia.com> | 2009-04-07 15:19:52 (GMT) |
|---|---|---|
| committer | Anders Bakken <anders.bakken@nokia.com> | 2009-04-07 15:23:47 (GMT) |
| commit | 5d6b7757eebc76018eedd2fdfb5135df7b5cb460 (patch) | |
| tree | 66b18ced6955dc2f48f5e35f032173f8f1c271e9 /src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp | |
| parent | 76608a9c51f4cd5309a5fec1af40c4d80089adf5 (diff) | |
| download | Qt-5d6b7757eebc76018eedd2fdfb5135df7b5cb460.zip Qt-5d6b7757eebc76018eedd2fdfb5135df7b5cb460.tar.gz Qt-5d6b7757eebc76018eedd2fdfb5135df7b5cb460.tar.bz2 | |
Make sure to clear surface in toImage
It seems DirectFB doesn't preserve alpha value of a blit unless BLEND is
specified and if it is we need to Clear to transparent first.
Reviewed-by: TrustMe
Diffstat (limited to 'src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp')
| -rw-r--r-- | src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp index 35ab859..a20b66a 100644 --- a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp +++ b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp @@ -250,7 +250,12 @@ QImage QDirectFBPixmapData::toImage() const #ifndef QT_NO_DIRECTFB_PREALLOCATED QImage ret(size(), QDirectFBScreen::getImageFormat(dfbSurface)); if (IDirectFBSurface *imgSurface = screen->createDFBSurface(ret, QDirectFBScreen::DontTrackSurface)) { - imgSurface->SetBlittingFlags(imgSurface, hasAlphaChannel() ? DSBLIT_BLEND_ALPHACHANNEL : DSBLIT_NOFX); + if (hasAlphaChannel()) { + imgSurface->SetBlittingFlags(imgSurface, DSBLIT_BLEND_ALPHACHANNEL); + imgSurface->Clear(imgSurface, 0, 0, 0, 0); + } else { + imgSurface->SetBlittingFlags(imgSurface, DSBLIT_NOFX); + } imgSurface->Blit(imgSurface, dfbSurface, 0, 0, 0); imgSurface->ReleaseSource(imgSurface); imgSurface->Release(imgSurface); |