On 26.07.13 17:52, Laurent Pinchart wrote:
Using omapfb, or...? I hope not
omap_vout, because that's rather unmaintained =).
Laurent's live application is using the V4L2 API for video output (to
get free YUV conversion and DMA) so I guess this unfortunatelly counts
as using omap_vout. Are there any alternatives I should look into? IIUC
to use omapfb I would need to manually copy RGB data into the
framebuffer on each frame.
It should be possible to port the live application to use DRM/KMS with omapdrm
for the display side, without requiring any memory copy. That's somewhere on
my TODO list, but I won't have time to work on that before way too long.
I could look into it myself but is there any documentation on omapdrm?
From what I found libdrm should probably be used but information about
it's API is really scarce:
https://dvdhrm.wordpress.com/2012/09/13/linux-drm-mode-setting-api/
http://dvdhrm.wordpress.com/2012/12/21/advanced-drm-mode-setting-api/
http://virtuousgeek.org/blog/index.php/jbarnes/2011/10/31/writing_stanalone_programs_with_egl_and_
The last one seems focused on OpenGL so I don't think it applies.
Are there any good sources to learn about this? Or maybe some pointers
on where to start with reading source code?
--
regards,
Jakub Piotr Cłapa
LoEE.pl
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