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From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>,
	David Airlie <airlied@linux.ie>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Sean Paul <seanpaul@chromium.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Hans Verkuil <hans.verkuil@cisco.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-media@vger.kernel.org
Subject: Re: [RFC PATCH 03/20] drm/fourcc: Pass the format_info pointer to drm_format_plane_cpp
Date: Thu, 21 Mar 2019 11:13:35 +0100	[thread overview]
Message-ID: <20190321101335.wws44wdh42jazboq@flea> (raw)
In-Reply-To: <2ef894df9d9e79d4a89e745e95c79bbb6a2505e4.camel@bootlin.com>

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On Wed, Mar 20, 2019 at 03:24:26PM +0100, Paul Kocialkowski wrote:
> Hi,
>
> Le mardi 19 mars 2019 à 22:57 +0100, Maxime Ripard a écrit :
> > So far, the drm_format_plane_cpp function was operating on the format's
> > fourcc and was doing a lookup to retrieve the drm_format_info structure and
> > return the cpp.
> >
> > However, this is inefficient since in most cases, we will have the
> > drm_format_info pointer already available so we shouldn't have to perform a
> > new lookup. Some drm_fourcc functions also already operate on the
> > drm_format_info pointer for that reason, so the API is quite inconsistent
> > there.
>
> Well, it seems that drm_fourcc functions that take a drm_format_info
> have a drm_format_info prefix, so having this would be more consistent.
>
> And given what the helper does, I think it would make good sense to
> switch it over to an inline drm_format_info_plane_cpp helper.
>
> What do you think?

That makes total sense, I'll change it. Thanks!
Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Hans Verkuil <hans.verkuil@cisco.com>,
	Sean Paul <seanpaul@chromium.org>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Daniel Vetter <daniel.vetter@intel.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-media@vger.kernel.org
Subject: Re: [RFC PATCH 03/20] drm/fourcc: Pass the format_info pointer to drm_format_plane_cpp
Date: Thu, 21 Mar 2019 11:13:35 +0100	[thread overview]
Message-ID: <20190321101335.wws44wdh42jazboq@flea> (raw)
In-Reply-To: <2ef894df9d9e79d4a89e745e95c79bbb6a2505e4.camel@bootlin.com>


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On Wed, Mar 20, 2019 at 03:24:26PM +0100, Paul Kocialkowski wrote:
> Hi,
>
> Le mardi 19 mars 2019 à 22:57 +0100, Maxime Ripard a écrit :
> > So far, the drm_format_plane_cpp function was operating on the format's
> > fourcc and was doing a lookup to retrieve the drm_format_info structure and
> > return the cpp.
> >
> > However, this is inefficient since in most cases, we will have the
> > drm_format_info pointer already available so we shouldn't have to perform a
> > new lookup. Some drm_fourcc functions also already operate on the
> > drm_format_info pointer for that reason, so the API is quite inconsistent
> > there.
>
> Well, it seems that drm_fourcc functions that take a drm_format_info
> have a drm_format_info prefix, so having this would be more consistent.
>
> And given what the helper does, I think it would make good sense to
> switch it over to an inline drm_format_info_plane_cpp helper.
>
> What do you think?

That makes total sense, I'll change it. Thanks!
Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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  reply	other threads:[~2019-03-21 10:13 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-19 21:57 [RFC PATCH 00/20] drm: Split out the formats API and move it to a common place Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 01/20] drm: Remove users of drm_format_num_planes Maxime Ripard
2019-03-20 14:16   ` Paul Kocialkowski
2019-04-02  9:43   ` Emil Velikov
2019-04-02 14:51     ` Maxime Ripard
2019-04-04 16:24       ` Emil Velikov
2019-03-19 21:57 ` [RFC PATCH 02/20] drm: Remove users of drm_format_(horz|vert)_chroma_subsampling Maxime Ripard
2019-03-20 14:19   ` Paul Kocialkowski
2019-03-20 14:19     ` Paul Kocialkowski
2019-03-19 21:57 ` [RFC PATCH 03/20] drm/fourcc: Pass the format_info pointer to drm_format_plane_cpp Maxime Ripard
2019-03-19 21:57   ` Maxime Ripard
2019-03-20 14:24   ` Paul Kocialkowski
2019-03-21 10:13     ` Maxime Ripard [this message]
2019-03-21 10:13       ` Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 04/20] drm/fourcc: Pass the format_info pointer to drm_format_plane_width/height Maxime Ripard
2019-03-20 14:26   ` Paul Kocialkowski
2019-03-19 21:57 ` [RFC PATCH 05/20] drm: Replace instances of drm_format_info by drm_get_format_info Maxime Ripard
2019-03-20 14:27   ` Paul Kocialkowski
2019-03-19 21:57 ` [RFC PATCH 06/20] lib: Add video format information library Maxime Ripard
2019-03-19 21:57   ` Maxime Ripard
2019-03-20 13:39   ` Boris Brezillon
2019-03-21  8:20     ` Maxime Ripard
2019-03-21  8:20       ` Maxime Ripard
2019-03-21  8:40       ` Boris Brezillon
2019-03-19 21:57 ` [RFC PATCH 07/20] drm/fb: Move from drm_format_info to image_format_info Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 08/20] drm/malidp: Convert to generic image format library Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 09/20] drm/client: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 10/20] drm/exynos: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 11/20] drm/i915: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 12/20] drm/ipuv3: " Maxime Ripard
2019-03-19 21:57   ` Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 13/20] drm/msm: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 14/20] drm/omap: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 15/20] drm/rockchip: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 16/20] drm/tegra: " Maxime Ripard
2019-03-19 21:57   ` Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 17/20] drm/fourcc: Remove old DRM format API Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 18/20] lib: image-formats: Add v4l2 formats support Maxime Ripard
2019-03-19 23:29   ` Nicolas Dufresne
2019-03-20 14:27     ` Ville Syrjälä
2019-03-20 15:51       ` Nicolas Dufresne
2019-03-20 16:09         ` Ville Syrjälä
2019-03-20 16:30           ` Nicolas Dufresne
2019-03-20 16:41             ` Ville Syrjälä
2019-03-20 18:27               ` Nicolas Dufresne
2019-03-20 18:39                 ` Ville Syrjälä
2019-03-21 16:04                   ` Paul Kocialkowski
2019-03-21 16:04                     ` Paul Kocialkowski
2019-03-21 16:35                     ` Ville Syrjälä
2019-03-21 19:14                       ` Nicolas Dufresne
2019-03-21 21:44                         ` Ville Syrjälä
2019-03-22 18:24                           ` Nicolas Dufresne
2019-03-22 18:44                             ` Ville Syrjälä
2019-03-22 19:25                               ` Nicolas Dufresne
2019-03-22 14:42                         ` Ville Syrjälä
2019-03-22 18:11                           ` Nicolas Dufresne
2019-03-20 18:15     ` Brian Starkey
2019-03-21 15:47       ` Maxime Ripard
2019-03-22 19:55   ` Nicolas Dufresne
2019-04-01 14:44     ` Maxime Ripard
2019-04-11  7:24       ` Hans Verkuil
2019-04-11  7:38     ` Hans Verkuil
2019-04-11 15:55       ` Maxime Ripard
2019-04-11  7:12   ` Hans Verkuil
2019-04-11  7:15     ` Hans Verkuil
2019-04-11  7:15       ` Hans Verkuil
2019-03-19 21:57 ` [RFC PATCH 19/20] lib: image-formats: Add more functions Maxime Ripard
2019-03-19 21:57   ` Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 20/20] media: sun6i: Convert to the image format API Maxime Ripard

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