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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 6643BC43441 for ; Fri, 23 Nov 2018 09:30:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3804920820 for ; Fri, 23 Nov 2018 09:30:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3804920820 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2409104AbeKWUN6 (ORCPT ); Fri, 23 Nov 2018 15:13:58 -0500 Received: from mail.bootlin.com ([62.4.15.54]:49214 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2502645AbeKWUKP (ORCPT ); Fri, 23 Nov 2018 15:10:15 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id 12B1B20DC1; Fri, 23 Nov 2018 10:26:48 +0100 (CET) Received: from localhost.localdomain (aaubervilliers-681-1-94-205.w90-88.abo.wanadoo.fr [90.88.35.205]) by mail.bootlin.com (Postfix) with ESMTPSA id 6E7BB20DC4; Fri, 23 Nov 2018 10:26:29 +0100 (CET) From: Paul Kocialkowski To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Cc: Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Chen-Yu Tsai , Thomas Petazzoni , linux-sunxi@googlegroups.com, Daniel Vetter , Paul Kocialkowski Subject: [PATCH v2 08/43] drm/fourcc: Add helper to check if a format uses a YUV colorspace Date: Fri, 23 Nov 2018 10:24:40 +0100 Message-Id: <20181123092515.2511-9-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181123092515.2511-1-paul.kocialkowski@bootlin.com> References: <20181123092515.2511-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds a new helper to check whether the format described by its fourcc code uses a YUV colorspace, by returning the is_yuv entry for the DRM info entry matching that format. Signed-off-by: Paul Kocialkowski --- drivers/gpu/drm/drm_fourcc.c | 19 +++++++++++++++++++ include/drm/drm_fourcc.h | 1 + 2 files changed, 20 insertions(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index f523948c82b1..f85650c3463a 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -413,6 +413,25 @@ int drm_format_plane_height(int height, uint32_t format, int plane) } EXPORT_SYMBOL(drm_format_plane_height); +/** + * drm_format_is_yuv - check that the format uses a YUV colorspace + * @format: pixel format + * + * Returns: + * A boolean indicating whether the format uses a YUV colorspace. + */ +bool drm_format_is_yuv(uint32_t format) +{ + const struct drm_format_info *info; + + info = drm_format_info(format); + if (!info) + return false; + + return info->is_yuv; +} +EXPORT_SYMBOL(drm_format_is_yuv); + /** * drm_format_info_block_width - width in pixels of block. * @info: pixel format info diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index bcb389f04618..569b70483505 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -157,6 +157,7 @@ int drm_format_horz_chroma_subsampling(uint32_t format); int drm_format_vert_chroma_subsampling(uint32_t format); int drm_format_plane_width(int width, uint32_t format, int plane); int drm_format_plane_height(int height, uint32_t format, int plane); +bool drm_format_is_yuv(uint32_t format); unsigned int drm_format_info_block_width(const struct drm_format_info *info, int plane); unsigned int drm_format_info_block_height(const struct drm_format_info *info, -- 2.19.1