On Thu, 4 Oct 2018 10:15:52 +0200
Dirk Eibach wrote:
> Hi Pekka,
>
> > > > I suppose that means you still do a copy from the gbm_bo/dmabuf into a
> > > > window surface? If you used zwp_linux_dmabuf manually from your Wayland
> > > > client, you could avoid even that copy. It has the same
Hi Pekka,
> > > I suppose that means you still do a copy from the gbm_bo/dmabuf into a
> > > window surface? If you used zwp_linux_dmabuf manually from your Wayland
> > > client, you could avoid even that copy. It has the same caveat as below
> > > though.
> >
> > I don't think so. The grabber
On Tue, 2 Oct 2018 17:08:25 +0200
Dirk Eibach wrote:
> Hi Pekka,
>
Re-adding wayland-devel to cc, hope that's ok.
> > I suppose that means you still do a copy from the gbm_bo/dmabuf into a
> > window surface? If you used zwp_linux_dmabuf manually from your Wayland
> > client, you could avoid
On Tue, 2 Oct 2018 15:06:14 +0200
Dirk Eibach wrote:
> Hi Pekka,
>
> I finally got everything working. I am using gbm_bo_create() and
> gbm_bo_get_fd() to get a buffer that is filled by my grabber. Then I
> use eglCreateImageKHR() and glEGLImageTargetTexture2DOES() to display
> it.
Hi Dirk,
Hi Pekka,
I finally got everything working. I am using gbm_bo_create() and
gbm_bo_get_fd() to get a buffer that is filled by my grabber. Then I
use eglCreateImageKHR() and glEGLImageTargetTexture2DOES() to display
it.
My only problem left is that glEGLImageTargetTexture2DOES() does only
accept
On Wed, 12 Sep 2018 11:51:39 +0200
Dirk Eibach wrote:
> Hi Pekka,
>
> > yes, simple-dmabuf-v4l does exactly what I wrote in the above quote.
> > However, it does not allocate from the GPU device or from the display
> > device. Instead, it allocates from the V4L2 device and hopes that the
> >
On Wed, 12 Sep 2018 08:30:55 +0200
Dirk Eibach wrote:
> Hi Pekka,
>
> > that would not involve Weston in any special way at all. Buffer
> > allocation is usually done in the client any way the client wants. To
> > ensure the buffer can be used by the compositor before you fill it with
> > data,
Hi Pekka,
> that would not involve Weston in any special way at all. Buffer
> allocation is usually done in the client any way the client wants. To
> ensure the buffer can be used by the compositor before you fill it with
> data, you would export your buffer as a dmabuf and use
>
On Tue, 11 Sep 2018 15:28:35 +0200
Dirk Eibach wrote:
> I have a grabber device on The PCIe-bus that is able to transfer image
> data to other PCIe devices.
> I want to setup a wayland client, that reserves a buffer in GPU
> memory. Then the grabber could DMA to the buffer address. After
>
I have a grabber device on The PCIe-bus that is able to transfer image
data to other PCIe devices.
I want to setup a wayland client, that reserves a buffer in GPU
memory. Then the grabber could DMA to the buffer address. After
finishing the transfer, the client could flip the buffer.
Is there
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