We already have g2d_copy() which implements G2D copy
operations from one buffer to another. However we can't
do a overlapping copy operation in one buffer.
Add g2d_move() which acts like the standard memmove()
and properly handles overlapping copies.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
This enables us to pass command buffers to the kernel which
trigger an event on the DRM fd upon completion.
The final goal is to enable asynchronous operation of the
G2D engine, similar to async page flips.
Passing the event userdata pointer through the G2D context
was chosen to not change the current API (e.g. by adding
a userdata argument to each public functions).
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
All functions from the public API only operation on
struct g2d_context*, so this shouldn't break too much.
Make the context private since we don't want the
user to modify its content directly. Also remove
the defines that were only used for fields of
g2d_context.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Also add the register field formatting info provided by
Inki Dae <inki.dae@samsung.com>.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Suggested-by: Inki Dae <inki.dae@samsung.com>
Tobias Jakobi