From: Maxime Jourdan <mjourdan@baylibre.com>
To: Neil Armstrong <narmstrong@baylibre.com>
Cc: dri-devel@lists.freedesktop.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] drm/meson: Support Overlay plane for video rendering
Date: Wed, 7 Nov 2018 10:41:27 +0100 [thread overview]
Message-ID: <CAMO6nay=te3W67b83LKv35tXL8+09rvE9EaFwLDrRBhwpEgMvQ@mail.gmail.com> (raw)
In-Reply-To: <1541497202-20570-2-git-send-email-narmstrong@baylibre.com>
On Tue, Nov 6, 2018 at 10:40 AM Neil Armstrong <narmstrong@baylibre.com> wrote:
>
> The Amlogic Meson GX SoCs support an Overlay plane behind the primary
> plane for video rendering.
>
> This Overlay plane support various YUV layouts :
> - YUYV
> - NV12 / NV21
> - YUV444 / 422 / 420 / 411 / 410
>
> The scaler supports a wide range of scaling ratios, but for simplicity,
> plane atomic check limits the scaling from x5 to /5 in vertical and
> horizontal scaling.
>
> The z-order is fixed and always behind the primary plane and cannot be changed.
>
> The scaling parameter algorithm was taken from the Amlogic vendor kernel
> code and rewritten to match the atomic universal plane requirements.
>
> The video rendering using this overlay plane support has been tested using
> the new Kodi DRM-KMS Prime rendering path along the in-review V4L2 Mem2Mem
> Hardware Video Decoder up to 3840x2160 NV12 frames on various display modes.
>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> ---
> drivers/gpu/drm/meson/Makefile | 2 +-
> drivers/gpu/drm/meson/meson_canvas.c | 7 +-
> drivers/gpu/drm/meson/meson_canvas.h | 11 +-
> drivers/gpu/drm/meson/meson_crtc.c | 216 +++++++++++-
> drivers/gpu/drm/meson/meson_drv.c | 29 +-
> drivers/gpu/drm/meson/meson_drv.h | 52 +++
> drivers/gpu/drm/meson/meson_overlay.c | 586 ++++++++++++++++++++++++++++++++
> drivers/gpu/drm/meson/meson_overlay.h | 14 +
> drivers/gpu/drm/meson/meson_registers.h | 3 +
> drivers/gpu/drm/meson/meson_viu.c | 15 +
> drivers/gpu/drm/meson/meson_vpp.c | 44 ++-
> 11 files changed, 971 insertions(+), 8 deletions(-)
> create mode 100644 drivers/gpu/drm/meson/meson_overlay.c
> create mode 100644 drivers/gpu/drm/meson/meson_overlay.h
>
Tested by rendering video with:
- gstreamer 1.14.4 using kmssink
- ffmpeg-drm (https://github.com/Elyotna/ffmpeg-drm),
by applying this patch on top of the video decoder patch series.
Used different resolutions and pixel aspect ratios.
Tested-by: Maxime Jourdan <mjourdan@baylibre.com>
[snip]
next prev parent reply other threads:[~2018-11-07 9:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-06 9:39 [PATCH 0/3] drm/meson: Add support for Overlay and OSD Plane scaling Neil Armstrong
2018-11-06 9:40 ` [PATCH 1/3] drm/meson: Support Overlay plane for video rendering Neil Armstrong
2018-11-07 9:41 ` Maxime Jourdan [this message]
2018-11-06 9:40 ` [PATCH 2/3] drm/meson: move OSD scaler management into plane atomic update Neil Armstrong
2018-11-06 9:40 ` [PATCH 3/3] drm/meson: Add primary plane scaling Neil Armstrong
2018-11-06 11:13 ` [PATCH 0/3] drm/meson: Add support for Overlay and OSD Plane scaling Daniel Vetter
2018-11-06 13:36 ` Neil Armstrong
2018-11-06 13:59 ` Daniel Vetter
2018-11-13 13:33 ` Neil Armstrong
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