`devg-ravin.so`

Graphics driver for NEC Ravin chipsets

Syntax:

io-graphics -dl devg-ravin.so [option[,option ...]] ... &

Options:

For the general io-graphics options that can be used with this driver, see io-graphics.

Options specific to this driver:

-amode=config-file: Specifies the full path to ravin.conf, which is the configuration file for this driver.

Description:

The devg-ravin.so driver provides accelerated 2D support for the NEC Ravinn graphics chipset.

You can edit the ravin.conf configuration file to enable devg-ravin.so to run on your board. Follow the editing instructions in this file to specify the correct configuration for the required display mode. (For a more detailed explanation of the display settings, see the appropriate NEC documentation.)

You must specify the location of the configuration file to the devg-ravin.so driver via the -a option of io-graphics. For example:

io-graphics -dl devg-ravin.so -g640x480x16 -amode=/etc/photon/config/ravin.conf

Supported chipsets

NEC RavinE

Acceleration features

Feature	Provision
Solid fills	Yes
Bresenham lines	Yes
Pattern fills	Yes
Polygons	Yes
Onscreen blitting	Yes
Offscreen blitting	Yes
Chroma-keyed blitting	Yes
Alpha blending	Partial
Raster OP's	Full
Bitmaps	No

Video Overlay/Scaler support

Feature	Provision
YUV formats	Yes
RGB formats	Yes
Up scaling	Yes

Other features

Feature	Provision
Hardware Cursor	Yes
TV Out	No
Video capture	Yes
DPMS (power saving)	Yes
Layers supported	6

Resolution and refresh support

Display size (pixels):	Refresh rate(Hz):	Color depth (bits per pixel):
640x480	60	8, 16
800x600	60	8, 16

Other resolutions and color depths can be configured using the ravin.conf driver configuration file.

Files:

This driver needs the following files available at run time:

libdisputil.so: graphics driver utility library
libffb.so: software rasterization library