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| author | James Ross-Gowan <rossy@jrg.systems> | 2017-11-01 22:38:41 +1100 |
|---|---|---|
| committer | James Ross-Gowan <rossy@jrg.systems> | 2017-11-07 20:27:13 +1100 |
| commit | e7bf5576e599593b1bba5bbf2a7cd6d4270c7809 (patch) | |
| tree | 8a91e157cbd47bdd6f9bdbb40f2b0722ad5d3d53 /video/out/d3d11/ra_d3d11.h | |
| parent | b258d82d6eab5cec7f27f4d6780bf991d28aadef (diff) | |
| download | mpv-e7bf5576e599593b1bba5bbf2a7cd6d4270c7809.tar.bz2 mpv-e7bf5576e599593b1bba5bbf2a7cd6d4270c7809.tar.xz | |
vo_gpu: hwdec_d3d11va: allow zero-copy video decoding
Like the manual says, this is technically undefined behaviour. See:
https://msdn.microsoft.com/en-us/library/windows/desktop/ff476085.aspx
In particular, MSDN says texture arrays created with the BIND_DECODER
flag cannot be used with CreateShaderResourceView, which means they
can't be sampled through SRVs like normal Direct3D textures. However,
some programs (Google Chrome included) do this anyway for performance
and power-usage reasons, and it appears to work with most drivers.
Older AMD drivers had a "bug" with zero-copy decoding, but this appears
to have been fixed. See #3255, #3464 and http://crbug.com/623029.
Diffstat (limited to 'video/out/d3d11/ra_d3d11.h')
| -rw-r--r-- | video/out/d3d11/ra_d3d11.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/video/out/d3d11/ra_d3d11.h b/video/out/d3d11/ra_d3d11.h index eeadc7994e..54033b6cee 100644 --- a/video/out/d3d11/ra_d3d11.h +++ b/video/out/d3d11/ra_d3d11.h @@ -22,8 +22,9 @@ struct ra_tex *ra_d3d11_wrap_tex(struct ra *ra, ID3D11Resource *res); // As above, but for a D3D11VA video resource. The fmt parameter selects which // plane of a planar format will be mapped when the RA texture is used. +// array_slice should be set for texture arrays and is ignored for non-arrays. struct ra_tex *ra_d3d11_wrap_tex_video(struct ra *ra, ID3D11Texture2D *res, - int w, int h, + int w, int h, int array_slice, const struct ra_format *fmt); // Get the underlying D3D11 device from an RA instance. The returned device is |