From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BE0D6C18E5B for ; Tue, 10 Mar 2020 16:01:15 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 99FB120663 for ; Tue, 10 Mar 2020 16:01:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 99FB120663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7C80D6E891; Tue, 10 Mar 2020 16:01:14 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id CD79B6E88A; Tue, 10 Mar 2020 16:01:12 +0000 (UTC) X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Mar 2020 09:01:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,537,1574150400"; d="scan'208";a="289076283" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by FMSMGA003.fm.intel.com with SMTP; 10 Mar 2020 09:01:07 -0700 Received: by stinkbox (sSMTP sendmail emulation); Tue, 10 Mar 2020 18:01:06 +0200 Date: Tue, 10 Mar 2020 18:01:06 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Pankaj Bharadiya Subject: Re: [RFC][PATCH 1/5] drm: Introduce scaling filter property Message-ID: <20200310160106.GH13686@intel.com> References: <20200225070545.4482-1-pankaj.laxminarayan.bharadiya@intel.com> <20200225070545.4482-2-pankaj.laxminarayan.bharadiya@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200225070545.4482-2-pankaj.laxminarayan.bharadiya@intel.com> X-Patchwork-Hint: comment User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tzimmermann@suse.de, airlied@linux.ie, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, ankit.k.nautiyal@intel.com, mihail.atanassov@arm.com Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, Feb 25, 2020 at 12:35:41PM +0530, Pankaj Bharadiya wrote: > Introduce new scaling filter property to allow userspace to select > the driver's default scaling filter or Nearest-neighbor(NN) filter > for upscaling operations on crtc/plane. > = > Drivers can set up this property for a plane by calling > drm_plane_enable_scaling_filter() and for a CRTC by calling > drm_crtc_enable_scaling_filter(). > = > NN filter works by filling in the missing color values in the upscaled > image with that of the coordinate-mapped nearest source pixel value. > = > NN filter for integer multiple scaling can be particularly useful for > for pixel art games that rely on sharp, blocky images to deliver their > distinctive look. > = > Signed-off-by: Pankaj Bharadiya > Signed-off-by: Shashank Sharma > Signed-off-by: Ankit Nautiyal > --- > drivers/gpu/drm/drm_atomic_uapi.c | 8 +++++++ > drivers/gpu/drm/drm_crtc.c | 16 ++++++++++++++ > drivers/gpu/drm/drm_mode_config.c | 13 ++++++++++++ > drivers/gpu/drm/drm_plane.c | 35 +++++++++++++++++++++++++++++++ > include/drm/drm_crtc.h | 10 +++++++++ > include/drm/drm_mode_config.h | 6 ++++++ > include/drm/drm_plane.h | 14 +++++++++++++ > 7 files changed, 102 insertions(+) > = > diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atom= ic_uapi.c > index a1e5e262bae2..4e3c1f3176e4 100644 > --- a/drivers/gpu/drm/drm_atomic_uapi.c > +++ b/drivers/gpu/drm/drm_atomic_uapi.c > @@ -435,6 +435,8 @@ static int drm_atomic_crtc_set_property(struct drm_cr= tc *crtc, > return ret; > } else if (property =3D=3D config->prop_vrr_enabled) { > state->vrr_enabled =3D val; > + } else if (property =3D=3D config->scaling_filter_property) { > + state->scaling_filter =3D val; I think we want a per-plane/per-crtc prop for this. If we start adding more filters we are surely going to need different sets for different hw blocks. > } else if (property =3D=3D config->degamma_lut_property) { > ret =3D drm_atomic_replace_property_blob_from_id(dev, > &state->degamma_lut, > @@ -503,6 +505,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc, > *val =3D (state->gamma_lut) ? state->gamma_lut->base.id : 0; > else if (property =3D=3D config->prop_out_fence_ptr) > *val =3D 0; > + else if (property =3D=3D config->scaling_filter_property) > + *val =3D state->scaling_filter; > else if (crtc->funcs->atomic_get_property) > return crtc->funcs->atomic_get_property(crtc, state, property, val); > else > @@ -583,6 +587,8 @@ static int drm_atomic_plane_set_property(struct drm_p= lane *plane, > sizeof(struct drm_rect), > &replaced); > return ret; > + } else if (property =3D=3D config->scaling_filter_property) { > + state->scaling_filter =3D val; > } else if (plane->funcs->atomic_set_property) { > return plane->funcs->atomic_set_property(plane, state, > property, val); > @@ -641,6 +647,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane, > } else if (property =3D=3D config->prop_fb_damage_clips) { > *val =3D (state->fb_damage_clips) ? > state->fb_damage_clips->base.id : 0; > + } else if (property =3D=3D config->scaling_filter_property) { > + *val =3D state->scaling_filter; > } else if (plane->funcs->atomic_get_property) { > return plane->funcs->atomic_get_property(plane, state, property, val); > } else { > diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c > index 4936e1080e41..1ce7b2ac9eb5 100644 > --- a/drivers/gpu/drm/drm_crtc.c > +++ b/drivers/gpu/drm/drm_crtc.c > @@ -748,3 +748,19 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_objec= t *obj, > = > return ret; > } > + > +/** > + * drm_crtc_enable_scaling_filter - Enables crtc scaling filter property. > + * @crtc: CRTC on which to enable scaling filter property. > + * > + * This function lets driver to enable the scaling filter property on a = crtc. > + */ > +void drm_crtc_enable_scaling_filter(struct drm_crtc *crtc) > +{ > + struct drm_device *dev =3D crtc->dev; > + > + drm_object_attach_property(&crtc->base, > + dev->mode_config.scaling_filter_property, > + 0); > +} > +EXPORT_SYMBOL(drm_crtc_enable_scaling_filter); > diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode= _config.c > index 08e6eff6a179..1024a8d1cd5d 100644 > --- a/drivers/gpu/drm/drm_mode_config.c > +++ b/drivers/gpu/drm/drm_mode_config.c > @@ -214,6 +214,11 @@ static const struct drm_prop_enum_list drm_plane_typ= e_enum_list[] =3D { > { DRM_PLANE_TYPE_CURSOR, "Cursor" }, > }; > = > +static const struct drm_prop_enum_list drm_scaling_filter_enum_list[] = =3D { > + { DRM_SCALING_FILTER_DEFAULT, "Default" }, > + { DRM_SCALING_FILTER_NEAREST_NEIGHBOR, "Nearest Neighbor" }, > +}; > + > static int drm_mode_create_standard_properties(struct drm_device *dev) > { > struct drm_property *prop; > @@ -370,6 +375,14 @@ static int drm_mode_create_standard_properties(struc= t drm_device *dev) > return -ENOMEM; > dev->mode_config.modifiers_property =3D prop; > = > + prop =3D drm_property_create_enum(dev, 0, > + "SCALING_FILTER", > + drm_scaling_filter_enum_list, > + ARRAY_SIZE(drm_scaling_filter_enum_list)); > + if (!prop) > + return -ENOMEM; > + dev->mode_config.scaling_filter_property =3D prop; > + > return 0; > } > = > diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c > index d6ad60ab0d38..ace7ee2775c8 100644 > --- a/drivers/gpu/drm/drm_plane.c > +++ b/drivers/gpu/drm/drm_plane.c > @@ -1221,3 +1221,38 @@ int drm_mode_page_flip_ioctl(struct drm_device *de= v, > = > return ret; > } > + > +/** > + * DOC: Scaling filter property > + * > + * > + * SCALING_FILTER: > + * > + * Indicates scaling filter to be used for CRTC/plane scaler > + * > + * The value of this property can be one of the following: > + * Default: > + * Driver's default scaling filter > + * Nearest Neighbor: > + * Nearest Neighbor scaling filter > + * > + * Drivers can set up this property for a plane by calling > + * drm_plane_enable_scaling_filter() and for a CRTC by calling > + * drm_crtc_enable_scaling_filter() > + */ > + > +/** > + * drm_plane_enable_scaling_filter - Enables plane scaling filter proper= ty. > + * @plane: Plane on which to enable scaling filter property. > + * > + * This function lets driver to enable the scaling filter property on a = plane. > + */ > +void drm_plane_enable_scaling_filter(struct drm_plane *plane) > +{ > + struct drm_device *dev =3D plane->dev; > + > + drm_object_attach_property(&plane->base, > + dev->mode_config.scaling_filter_property, > + 0); > +} > +EXPORT_SYMBOL(drm_plane_enable_scaling_filter); > diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h > index 59b51a09cae6..770f9328a5ba 100644 > --- a/include/drm/drm_crtc.h > +++ b/include/drm/drm_crtc.h > @@ -58,6 +58,7 @@ struct device_node; > struct dma_fence; > struct edid; > = > + > static inline int64_t U642I64(uint64_t val) > { > return (int64_t)*((int64_t *)&val); > @@ -296,6 +297,13 @@ struct drm_crtc_state { > */ > u32 target_vblank; > = > + /** > + * @scaling_filter: > + * > + * Scaling filter mode to be applied > + */ > + enum drm_scaling_filter scaling_filter; > + > /** > * @async_flip: > * > @@ -1266,4 +1274,6 @@ static inline struct drm_crtc *drm_crtc_find(struct= drm_device *dev, > #define drm_for_each_crtc(crtc, dev) \ > list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head) > = > +void drm_crtc_enable_scaling_filter(struct drm_crtc *crtc); > + > #endif /* __DRM_CRTC_H__ */ > diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h > index 3bcbe30339f0..8c308ae1056d 100644 > --- a/include/drm/drm_mode_config.h > +++ b/include/drm/drm_mode_config.h > @@ -914,6 +914,12 @@ struct drm_mode_config { > */ > struct drm_property *modifiers_property; > = > + /** > + * @scaling_filter_property: CRTC/plane property to apply a particular > + * filter while scaling. > + */ > + struct drm_property *scaling_filter_property; > + > /* cursor size */ > uint32_t cursor_width, cursor_height; > = > diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h > index 3f396d94afe4..2bc665cc6071 100644 > --- a/include/drm/drm_plane.h > +++ b/include/drm/drm_plane.h > @@ -35,6 +35,11 @@ struct drm_crtc; > struct drm_printer; > struct drm_modeset_acquire_ctx; > = > + > +enum drm_scaling_filter { > + DRM_SCALING_FILTER_DEFAULT, > + DRM_SCALING_FILTER_NEAREST_NEIGHBOR, > +}; > /** > * struct drm_plane_state - mutable plane state > * > @@ -214,6 +219,13 @@ struct drm_plane_state { > */ > bool visible; > = > + /** > + * @scaling_filter: > + * > + * Scaling filter mode to be applied > + */ > + enum drm_scaling_filter scaling_filter; > + > /** > * @commit: Tracks the pending commit to prevent use-after-free conditi= ons, > * and for async plane updates. > @@ -862,4 +874,6 @@ drm_plane_get_damage_clips(const struct drm_plane_sta= te *state) > state->fb_damage_clips->data : NULL); > } > = > +void drm_plane_enable_scaling_filter(struct drm_plane *plane); > + > #endif > -- = > 2.23.0 -- = Ville Syrj=E4l=E4 Intel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel