From patchwork Wed Apr 17 07:54:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10904819 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ED35B13B5 for ; Wed, 17 Apr 2019 07:56:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DDB4A28A26 for ; Wed, 17 Apr 2019 07:56:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D1FFE28A2E; Wed, 17 Apr 2019 07:56:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7F63628A26 for ; Wed, 17 Apr 2019 07:56:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731304AbfDQHzS (ORCPT ); Wed, 17 Apr 2019 03:55:18 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:48045 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731281AbfDQHzS (ORCPT ); Wed, 17 Apr 2019 03:55:18 -0400 Received: from localhost (aaubervilliers-681-1-42-238.w90-88.abo.wanadoo.fr [90.88.160.238]) (Authenticated sender: maxime.ripard@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 8074E20000F; Wed, 17 Apr 2019 07:55:14 +0000 (UTC) From: Maxime Ripard To: Daniel Vetter , David Airlie , Maarten Lankhorst , Sean Paul , Maxime Ripard , Mauro Carvalho Chehab Cc: Sakari Ailus , Hans Verkuil , Laurent Pinchart , Thomas Petazzoni , Paul Kocialkowski , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Subject: [PATCH 19/20] lib: image-formats: Add more functions Date: Wed, 17 Apr 2019 09:54:45 +0200 Message-Id: <382f72c5938f538c8489cb2032050f4be252ad59.1555487650.git-series.maxime.ripard@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP V4L2 drivers typically need a few more helpers compared to DRM drivers, so let's add them. Signed-off-by: Maxime Ripard Acked-by: Sakari Ailus --- include/linux/image-formats.h | 42 ++++++++++++++++++++++++++++++++++++- 1 file changed, 42 insertions(+) diff --git a/include/linux/image-formats.h b/include/linux/image-formats.h index b78b8e861fc9..a2cf3528bd31 100644 --- a/include/linux/image-formats.h +++ b/include/linux/image-formats.h @@ -388,6 +388,48 @@ uint64_t image_format_info_min_pitch(const struct image_format_info *info, image_format_info_block_height(info, plane)); } +/** + * image_format_info_plane_stride - determine the stride value + * @format: pointer to the image_format_info + * @width: plane width + * @plane: plane index + * + * Returns: + * The bytes per pixel value for the specified plane. + */ +static inline +unsigned int image_format_info_plane_stride(const struct image_format_info *format, + unsigned int width, int plane) +{ + if (!format || plane >= format->num_planes) + return 0; + + return image_format_info_plane_width(format, width, plane) * + image_format_info_plane_cpp(format, plane); +} + +/** + * image_format_info_plane_size - determine the size value + * @format: pointer to the image_format_info + * @width: plane width + * @height: plane width + * @plane: plane index + * + * Returns: + * The size of the plane buffer. + */ +static inline +unsigned int image_format_info_plane_size(const struct image_format_info *format, + unsigned int width, unsigned int height, + int plane) +{ + if (!format || plane >= format->num_planes) + return 0; + + return image_format_info_plane_stride(format, width, plane) * + image_format_info_plane_height(format, height, plane); +} + const struct image_format_info *__image_format_drm_lookup(u32 drm); const struct image_format_info *__image_format_v4l2_lookup(u32 v4l2); const struct image_format_info *image_format_drm_lookup(u32 drm);