| commit | e72db3b1e50febff493bc5e3fb57da9cb8cc3d91 | [log] [tgz] |
|---|---|---|
| author | Philipp Zabel <p.zabel@pengutronix.de> | Fri Jan 09 11:03:13 2015 +0100 |
| committer | Philipp Zabel <p.zabel@pengutronix.de> | Wed Mar 15 15:42:31 2017 +0100 |
| tree | 3ad57c2c2fe02185979ab99f6584c32b06c2431d | |
| parent | ba2b5277dc52cc96944d9765281bdf1e12681f66 [diff] |
gpu: ipu-v3: add support for separate alpha channels The IPUv3 can read 8-bit alpha values from a separate IDMAC channel driven by the Alpha Transparency Controller (ATC) for the graphics IDMAC channels. This allows to reduce memory bandwidth via a conditional read mechanism or to support planar YUV formats with alpha transparency. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>