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=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 67301C433DF for ; Mon, 3 Aug 2020 04:34:46 +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 438B9206F6 for ; Mon, 3 Aug 2020 04:34:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 438B9206F6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=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 4B6EB6E116; Mon, 3 Aug 2020 04:34:44 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6CA926E116; Mon, 3 Aug 2020 04:34:43 +0000 (UTC) IronPort-SDR: leWbEkCmmHaiP7NuQDi9InNU0DGqkXIOE7NCUIsKL9PCrrmKQ7KBJTsZnXiPODgmpbHhsNYy47 RQA3IwNaa2Xg== X-IronPort-AV: E=McAfee;i="6000,8403,9701"; a="132102549" X-IronPort-AV: E=Sophos;i="5.75,428,1589266800"; d="scan'208";a="132102549" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2020 21:34:42 -0700 IronPort-SDR: RfD8KiQFo6ukQwsyyvHtgsq2ux3D68hBH9b97Fa3UILYSGyvbr1c5zx4pB/fls+tvc4yh+ODB4 9MmYgrwWrniw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,428,1589266800"; d="scan'208";a="314528987" Received: from plaxmina-desktop.iind.intel.com ([10.145.162.62]) by fmsmga004.fm.intel.com with ESMTP; 02 Aug 2020 21:34:37 -0700 From: Pankaj Bharadiya To: jani.nikula@linux.intel.com, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, ville.syrjala@linux.intel.com, daniels@collabora.com, sameer.lattannavar@intel.com, Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie Subject: [PATCH v5 1/5] drm: Introduce plane and CRTC scaling filter properties Date: Mon, 3 Aug 2020 09:59:49 +0530 Message-Id: <20200803042953.7626-2-pankaj.laxminarayan.bharadiya@intel.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200803042953.7626-1-pankaj.laxminarayan.bharadiya@intel.com> References: <20200803042953.7626-1-pankaj.laxminarayan.bharadiya@intel.com> MIME-Version: 1.0 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: pankaj.laxminarayan.bharadiya@intel.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Introduce per-plane and per-CRTC scaling filter properties to allow userspace to select the driver's default scaling filter or Nearest-neighbor(NN) filter for upscaling operations on CRTC and plane. Drivers can set up this property for a plane by calling drm_plane_create_scaling_filter() and for a CRTC by calling drm_crtc_create_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. changes since v3: * Refactor code, add new function for common code (Ville) changes since v2: * Create per-plane and per-CRTC scaling filter property (Ville) changes since v1: * None changes since RFC: * Add separate properties for plane and CRTC (Ville) Signed-off-by: Pankaj Bharadiya --- drivers/gpu/drm/drm_atomic_uapi.c | 8 +++ drivers/gpu/drm/drm_crtc.c | 48 +++++++++++++++ drivers/gpu/drm/drm_crtc_internal.h | 3 + drivers/gpu/drm/drm_plane.c | 90 +++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 16 +++++ include/drm/drm_plane.h | 21 +++++++ 6 files changed, 186 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 25c269bc4681..ef82009035e6 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -469,6 +469,8 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc, return -EFAULT; set_out_fence_for_crtc(state->state, crtc, fence_ptr); + } else if (property == crtc->scaling_filter_property) { + state->scaling_filter = val; } else if (crtc->funcs->atomic_set_property) { return crtc->funcs->atomic_set_property(crtc, state, property, val); } else { @@ -503,6 +505,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc, *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0; else if (property == config->prop_out_fence_ptr) *val = 0; + else if (property == crtc->scaling_filter_property) + *val = state->scaling_filter; else if (crtc->funcs->atomic_get_property) return crtc->funcs->atomic_get_property(crtc, state, property, val); else @@ -585,6 +589,8 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane, sizeof(struct drm_rect), &replaced); return ret; + } else if (property == plane->scaling_filter_property) { + state->scaling_filter = val; } else if (plane->funcs->atomic_set_property) { return plane->funcs->atomic_set_property(plane, state, property, val); @@ -643,6 +649,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane, } else if (property == config->prop_fb_damage_clips) { *val = (state->fb_damage_clips) ? state->fb_damage_clips->base.id : 0; + } else if (property == plane->scaling_filter_property) { + *val = 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 283bcc4362ca..70f5cd9704ba 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -776,3 +776,51 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, return ret; } + +/** + * DOC: CRTC scaling filter property + * + * SCALING_FILTER: + * + * Indicates scaling filter to be used for CRTC 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 CRTC by calling + * drm_crtc_create_scaling_filter_property + */ + +/** + * drm_crtc_create_scaling_filter_property - create a new scaling filter + * property + * + * @crtc: drm CRTC + * @supported_filters: bitmask of supported scaling filters, must include + * BIT(DRM_SCALING_FILTER_DEFAULT). + * + * This function lets driver to enable the scaling filter property on a given + * CRTC. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, + unsigned int supported_filters) +{ + struct drm_property *prop = + drm_create_scaling_filter_prop(crtc->dev, supported_filters); + + if (IS_ERR(prop)) + return PTR_ERR(prop); + + drm_object_attach_property(&crtc->base, prop, + DRM_SCALING_FILTER_DEFAULT); + crtc->scaling_filter_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property); diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index da96b2f64d7e..54d4cf1233e9 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -72,6 +72,9 @@ int drm_crtc_force_disable(struct drm_crtc *crtc); struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc); +struct drm_property * +drm_create_scaling_filter_prop(struct drm_device *dev, + unsigned int supported_filters); /* IOCTLs */ int drm_mode_getcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index b7b90b3a2e38..de3888572684 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -1231,3 +1231,93 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, return ret; } + +struct drm_property * +drm_create_scaling_filter_prop(struct drm_device *dev, + unsigned int supported_filters) +{ + struct drm_property *prop; + static const struct drm_prop_enum_list props[] = { + { DRM_SCALING_FILTER_DEFAULT, "Default" }, + { DRM_SCALING_FILTER_NEAREST_NEIGHBOR, "Nearest Neighbor" }, + }; + unsigned int valid_mode_mask = BIT(DRM_SCALING_FILTER_DEFAULT) | + BIT(DRM_SCALING_FILTER_NEAREST_NEIGHBOR); + int i; + + if (WARN_ON((supported_filters & ~valid_mode_mask) || + ((supported_filters & BIT(DRM_SCALING_FILTER_DEFAULT)) == 0))) + return ERR_PTR(-EINVAL); + + prop = drm_property_create(dev, DRM_MODE_PROP_ENUM, + "SCALING_FILTER", + hweight32(supported_filters)); + if (!prop) + return ERR_PTR(-ENOMEM); + + for (i = 0; i < ARRAY_SIZE(props); i++) { + int ret; + + if (!(BIT(props[i].type) & supported_filters)) + continue; + + ret = drm_property_add_enum(prop, props[i].type, + props[i].name); + + if (ret) { + drm_property_destroy(dev, prop); + + return ERR_PTR(ret); + } + } + + return prop; +} + +/** + * DOC: Plane scaling filter property + * + * SCALING_FILTER: + * + * Indicates scaling filter to be used for 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_create_scaling_filter_property + */ + +/** + * drm_plane_create_scaling_filter_property - create a new scaling filter + * property + * + * @plane: drm plane + * @supported_filters: bitmask of supported scaling filters, must include + * BIT(DRM_SCALING_FILTER_DEFAULT). + * + * This function lets driver to enable the scaling filter property on a given + * plane. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_plane_create_scaling_filter_property(struct drm_plane *plane, + unsigned int supported_filters) +{ + struct drm_property *prop = + drm_create_scaling_filter_prop(plane->dev, supported_filters); + + if (IS_ERR(prop)) + return PTR_ERR(prop); + + drm_object_attach_property(&plane->base, prop, + DRM_SCALING_FILTER_DEFAULT); + plane->scaling_filter_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_plane_create_scaling_filter_property); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 59b51a09cae6..ba839e5e357d 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -324,6 +324,13 @@ struct drm_crtc_state { */ bool self_refresh_active; + /** + * @scaling_filter: + * + * Scaling filter to be applied + */ + enum drm_scaling_filter scaling_filter; + /** * @event: * @@ -1083,6 +1090,12 @@ struct drm_crtc { /** @properties: property tracking for this CRTC */ struct drm_object_properties properties; + /** + * @scaling_filter_property: property to apply a particular filter while + * scaling. + */ + struct drm_property *scaling_filter_property; + /** * @state: * @@ -1266,4 +1279,7 @@ 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) +int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, + unsigned int supported_filters); + #endif /* __DRM_CRTC_H__ */ diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 3f396d94afe4..1d82b264e5e4 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 to be applied + */ + enum drm_scaling_filter scaling_filter; + /** * @commit: Tracks the pending commit to prevent use-after-free conditions, * and for async plane updates. @@ -724,6 +736,12 @@ struct drm_plane { * See drm_plane_create_color_properties(). */ struct drm_property *color_range_property; + + /** + * @scaling_filter_property: property to apply a particular filter while + * scaling. + */ + struct drm_property *scaling_filter_property; }; #define obj_to_plane(x) container_of(x, struct drm_plane, base) @@ -862,4 +880,7 @@ drm_plane_get_damage_clips(const struct drm_plane_state *state) state->fb_damage_clips->data : NULL); } +int drm_plane_create_scaling_filter_property(struct drm_plane *plane, + unsigned int supported_filters); + #endif -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel 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=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 ECB35C433E0 for ; Mon, 3 Aug 2020 04:34:48 +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 CD5EA206F6 for ; Mon, 3 Aug 2020 04:34:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CD5EA206F6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3D2456E13A; Mon, 3 Aug 2020 04:34:45 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6CA926E116; Mon, 3 Aug 2020 04:34:43 +0000 (UTC) IronPort-SDR: leWbEkCmmHaiP7NuQDi9InNU0DGqkXIOE7NCUIsKL9PCrrmKQ7KBJTsZnXiPODgmpbHhsNYy47 RQA3IwNaa2Xg== X-IronPort-AV: E=McAfee;i="6000,8403,9701"; a="132102549" X-IronPort-AV: E=Sophos;i="5.75,428,1589266800"; d="scan'208";a="132102549" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2020 21:34:42 -0700 IronPort-SDR: RfD8KiQFo6ukQwsyyvHtgsq2ux3D68hBH9b97Fa3UILYSGyvbr1c5zx4pB/fls+tvc4yh+ODB4 9MmYgrwWrniw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,428,1589266800"; d="scan'208";a="314528987" Received: from plaxmina-desktop.iind.intel.com ([10.145.162.62]) by fmsmga004.fm.intel.com with ESMTP; 02 Aug 2020 21:34:37 -0700 From: Pankaj Bharadiya To: jani.nikula@linux.intel.com, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, ville.syrjala@linux.intel.com, daniels@collabora.com, sameer.lattannavar@intel.com, Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie Date: Mon, 3 Aug 2020 09:59:49 +0530 Message-Id: <20200803042953.7626-2-pankaj.laxminarayan.bharadiya@intel.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200803042953.7626-1-pankaj.laxminarayan.bharadiya@intel.com> References: <20200803042953.7626-1-pankaj.laxminarayan.bharadiya@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 1/5] drm: Introduce plane and CRTC scaling filter properties X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Introduce per-plane and per-CRTC scaling filter properties to allow userspace to select the driver's default scaling filter or Nearest-neighbor(NN) filter for upscaling operations on CRTC and plane. Drivers can set up this property for a plane by calling drm_plane_create_scaling_filter() and for a CRTC by calling drm_crtc_create_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. changes since v3: * Refactor code, add new function for common code (Ville) changes since v2: * Create per-plane and per-CRTC scaling filter property (Ville) changes since v1: * None changes since RFC: * Add separate properties for plane and CRTC (Ville) Signed-off-by: Pankaj Bharadiya --- drivers/gpu/drm/drm_atomic_uapi.c | 8 +++ drivers/gpu/drm/drm_crtc.c | 48 +++++++++++++++ drivers/gpu/drm/drm_crtc_internal.h | 3 + drivers/gpu/drm/drm_plane.c | 90 +++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 16 +++++ include/drm/drm_plane.h | 21 +++++++ 6 files changed, 186 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 25c269bc4681..ef82009035e6 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -469,6 +469,8 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc, return -EFAULT; set_out_fence_for_crtc(state->state, crtc, fence_ptr); + } else if (property == crtc->scaling_filter_property) { + state->scaling_filter = val; } else if (crtc->funcs->atomic_set_property) { return crtc->funcs->atomic_set_property(crtc, state, property, val); } else { @@ -503,6 +505,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc, *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0; else if (property == config->prop_out_fence_ptr) *val = 0; + else if (property == crtc->scaling_filter_property) + *val = state->scaling_filter; else if (crtc->funcs->atomic_get_property) return crtc->funcs->atomic_get_property(crtc, state, property, val); else @@ -585,6 +589,8 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane, sizeof(struct drm_rect), &replaced); return ret; + } else if (property == plane->scaling_filter_property) { + state->scaling_filter = val; } else if (plane->funcs->atomic_set_property) { return plane->funcs->atomic_set_property(plane, state, property, val); @@ -643,6 +649,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane, } else if (property == config->prop_fb_damage_clips) { *val = (state->fb_damage_clips) ? state->fb_damage_clips->base.id : 0; + } else if (property == plane->scaling_filter_property) { + *val = 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 283bcc4362ca..70f5cd9704ba 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -776,3 +776,51 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, return ret; } + +/** + * DOC: CRTC scaling filter property + * + * SCALING_FILTER: + * + * Indicates scaling filter to be used for CRTC 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 CRTC by calling + * drm_crtc_create_scaling_filter_property + */ + +/** + * drm_crtc_create_scaling_filter_property - create a new scaling filter + * property + * + * @crtc: drm CRTC + * @supported_filters: bitmask of supported scaling filters, must include + * BIT(DRM_SCALING_FILTER_DEFAULT). + * + * This function lets driver to enable the scaling filter property on a given + * CRTC. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, + unsigned int supported_filters) +{ + struct drm_property *prop = + drm_create_scaling_filter_prop(crtc->dev, supported_filters); + + if (IS_ERR(prop)) + return PTR_ERR(prop); + + drm_object_attach_property(&crtc->base, prop, + DRM_SCALING_FILTER_DEFAULT); + crtc->scaling_filter_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property); diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index da96b2f64d7e..54d4cf1233e9 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -72,6 +72,9 @@ int drm_crtc_force_disable(struct drm_crtc *crtc); struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc); +struct drm_property * +drm_create_scaling_filter_prop(struct drm_device *dev, + unsigned int supported_filters); /* IOCTLs */ int drm_mode_getcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index b7b90b3a2e38..de3888572684 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -1231,3 +1231,93 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, return ret; } + +struct drm_property * +drm_create_scaling_filter_prop(struct drm_device *dev, + unsigned int supported_filters) +{ + struct drm_property *prop; + static const struct drm_prop_enum_list props[] = { + { DRM_SCALING_FILTER_DEFAULT, "Default" }, + { DRM_SCALING_FILTER_NEAREST_NEIGHBOR, "Nearest Neighbor" }, + }; + unsigned int valid_mode_mask = BIT(DRM_SCALING_FILTER_DEFAULT) | + BIT(DRM_SCALING_FILTER_NEAREST_NEIGHBOR); + int i; + + if (WARN_ON((supported_filters & ~valid_mode_mask) || + ((supported_filters & BIT(DRM_SCALING_FILTER_DEFAULT)) == 0))) + return ERR_PTR(-EINVAL); + + prop = drm_property_create(dev, DRM_MODE_PROP_ENUM, + "SCALING_FILTER", + hweight32(supported_filters)); + if (!prop) + return ERR_PTR(-ENOMEM); + + for (i = 0; i < ARRAY_SIZE(props); i++) { + int ret; + + if (!(BIT(props[i].type) & supported_filters)) + continue; + + ret = drm_property_add_enum(prop, props[i].type, + props[i].name); + + if (ret) { + drm_property_destroy(dev, prop); + + return ERR_PTR(ret); + } + } + + return prop; +} + +/** + * DOC: Plane scaling filter property + * + * SCALING_FILTER: + * + * Indicates scaling filter to be used for 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_create_scaling_filter_property + */ + +/** + * drm_plane_create_scaling_filter_property - create a new scaling filter + * property + * + * @plane: drm plane + * @supported_filters: bitmask of supported scaling filters, must include + * BIT(DRM_SCALING_FILTER_DEFAULT). + * + * This function lets driver to enable the scaling filter property on a given + * plane. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_plane_create_scaling_filter_property(struct drm_plane *plane, + unsigned int supported_filters) +{ + struct drm_property *prop = + drm_create_scaling_filter_prop(plane->dev, supported_filters); + + if (IS_ERR(prop)) + return PTR_ERR(prop); + + drm_object_attach_property(&plane->base, prop, + DRM_SCALING_FILTER_DEFAULT); + plane->scaling_filter_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_plane_create_scaling_filter_property); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 59b51a09cae6..ba839e5e357d 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -324,6 +324,13 @@ struct drm_crtc_state { */ bool self_refresh_active; + /** + * @scaling_filter: + * + * Scaling filter to be applied + */ + enum drm_scaling_filter scaling_filter; + /** * @event: * @@ -1083,6 +1090,12 @@ struct drm_crtc { /** @properties: property tracking for this CRTC */ struct drm_object_properties properties; + /** + * @scaling_filter_property: property to apply a particular filter while + * scaling. + */ + struct drm_property *scaling_filter_property; + /** * @state: * @@ -1266,4 +1279,7 @@ 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) +int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, + unsigned int supported_filters); + #endif /* __DRM_CRTC_H__ */ diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 3f396d94afe4..1d82b264e5e4 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 to be applied + */ + enum drm_scaling_filter scaling_filter; + /** * @commit: Tracks the pending commit to prevent use-after-free conditions, * and for async plane updates. @@ -724,6 +736,12 @@ struct drm_plane { * See drm_plane_create_color_properties(). */ struct drm_property *color_range_property; + + /** + * @scaling_filter_property: property to apply a particular filter while + * scaling. + */ + struct drm_property *scaling_filter_property; }; #define obj_to_plane(x) container_of(x, struct drm_plane, base) @@ -862,4 +880,7 @@ drm_plane_get_damage_clips(const struct drm_plane_state *state) state->fb_damage_clips->data : NULL); } +int drm_plane_create_scaling_filter_property(struct drm_plane *plane, + unsigned int supported_filters); + #endif -- 2.23.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx