Searched hist:e72db3b1 (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/drivers/gpu/ipu-v3/ |
| H A D | ipu-cpmem.c | e72db3b1 Fri Jan 09 04:03:13 CST 2015 Philipp Zabel <p.zabel@pengutronix.de> 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>
e72db3b1 Fri Jan 09 04:03:13 CST 2015 Philipp Zabel <p.zabel@pengutronix.de> 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>
|
| H A D | ipu-common.c | e72db3b1 Fri Jan 09 04:03:13 CST 2015 Philipp Zabel <p.zabel@pengutronix.de> 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>
e72db3b1 Fri Jan 09 04:03:13 CST 2015 Philipp Zabel <p.zabel@pengutronix.de> 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>
|
| /openbmc/linux/include/video/ |
| H A D | imx-ipu-v3.h | e72db3b1 Fri Jan 09 04:03:13 CST 2015 Philipp Zabel <p.zabel@pengutronix.de> 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>
e72db3b1 Fri Jan 09 04:03:13 CST 2015 Philipp Zabel <p.zabel@pengutronix.de> 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>
|