On Thu, Sep 19, 2019 at 08:53:10PM +0200, Jernej Škrabec wrote: > Dne sreda, 18. september 2019 ob 13:05:41 CEST je > roman.stratiie...@globallogic.com napisal(a): > > From: Roman Stratiienko <roman.stratiie...@globallogic.com> > > > > According to Allwinner DE2.0 Specification REV 1.0, vi layer supports the > > following pixel formats: ABGR_8888, ARGB_8888, BGRA_8888, RGBA_8888 > > It's true that DE2 VI layers support those formats, but it wouldn't change > anything because alpha blending is not supported by those planes. These > formats were deliberately left out because their counterparts without alpha > exist, for example ABGR8888 <-> XBGR8888. It would also confuse user, which > would expect that alpha blending works if format with alpha channel is > selected.
I'm not too familiar with the DE2 code, but why is alpha not working if the VI planes support formats with alpha? Thanks! Maxime
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