From patchwork Tue Dec 4 14:21:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 10711929 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 4754B1731 for ; Tue, 4 Dec 2018 14:23:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 390DA29118 for ; Tue, 4 Dec 2018 14:23:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2D13D29334; Tue, 4 Dec 2018 14:23:39 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id AD8BD29118 for ; Tue, 4 Dec 2018 14:23:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=eYNAHRr0a2qjsgxtW1N5Ybztk6TkCeMbSK/bvZLt7yA=; b=iG0QRdpHfepMsb 647CXNXToWD79azSdQTmEzvbUdTnLZ15C1jAQMMz9HEPiXTUI0psz8IHlXzEkLDGT3g5mtlCyuXAQ Iv9V8IxFMJLFSdQgpyjQ9x30iDWisHz2XGGgV3MjDkubT3TRvz9Dq2Ud8qdT9TJQTm/NYjD6LluZc p5qriyjOUgdF3XGlqKzIvyxWTjRS3Zni0yBbjhQIvsPx1TZLlQ5FCRborcBGxSz/o6bTONSyNzcVN 4r1qbUPTGP4V4Am4iNXQt68vlxQyLli74DRO1m5ngxnJI+piSlI3959XgJdQBCd15i6lvyYExH3O5 l75dve0lPluuonPSrbjA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUBbr-00088v-90; Tue, 04 Dec 2018 14:23:35 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUBbP-0007eE-BG for linux-arm-kernel@lists.infradead.org; Tue, 04 Dec 2018 14:23:10 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id C22BB20A58; Tue, 4 Dec 2018 15:22:59 +0100 (CET) Received: from localhost.localdomain (aaubervilliers-681-1-79-44.w90-88.abo.wanadoo.fr [90.88.21.44]) by mail.bootlin.com (Postfix) with ESMTPSA id 3E11F20A59; Tue, 4 Dec 2018 15:22:39 +0100 (CET) From: Paul Kocialkowski To: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 02/21] drm/fourcc: Add format info helpers for checking YUV sub-sampling Date: Tue, 4 Dec 2018 15:21:59 +0100 Message-Id: <20181204142218.16284-3-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181204142218.16284-1-paul.kocialkowski@bootlin.com> References: <20181204142218.16284-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181204_062307_680928_4CDD7260 X-CRM114-Status: GOOD ( 10.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Vetter , Maxime Ripard , Maarten Lankhorst , linux-sunxi@googlegroups.com, Paul Kocialkowski , David Airlie , Chen-Yu Tsai , Thomas Petazzoni , Sean Paul Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Display engine drivers often need to distinguish between different types of YUV sub-sampling. This introduces helpers to check for common sub-sampling ratios in their commonly-used denomination from the DRM format info. Signed-off-by: Paul Kocialkowski Reviewed-by: Maxime Ripard --- include/drm/drm_fourcc.h | 75 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index 01cd353d9302..b3d9d88ab290 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -185,6 +185,81 @@ drm_format_info_is_yuv_planar(const struct drm_format_info *info) return info->is_yuv && info->num_planes == 3; } +/** + * drm_format_info_is_yuv_sampling_410 - check that the format info matches a + * YUV format with 4:1:0 sub-sampling + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a YUV format with 4:1:0 + * sub-sampling. + */ +static inline bool +drm_format_info_is_yuv_sampling_410(const struct drm_format_info *info) +{ + return info->is_yuv && info->hsub == 4 && info->vsub == 4; +} + +/** + * drm_format_info_is_yuv_sampling_411 - check that the format info matches a + * YUV format with 4:1:1 sub-sampling + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a YUV format with 4:1:1 + * sub-sampling. + */ +static inline bool +drm_format_info_is_yuv_sampling_411(const struct drm_format_info *info) +{ + return info->is_yuv && info->hsub == 4 && info->vsub == 1; +} + +/** + * drm_format_info_is_yuv_sampling_420 - check that the format info matches a + * YUV format with 4:2:0 sub-sampling + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a YUV format with 4:2:0 + * sub-sampling. + */ +static inline bool +drm_format_info_is_yuv_sampling_420(const struct drm_format_info *info) +{ + return info->is_yuv && info->hsub == 2 && info->vsub == 2; +} + +/** + * drm_format_info_is_yuv_sampling_422 - check that the format info matches a + * YUV format with 4:2:2 sub-sampling + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a YUV format with 4:2:2 + * sub-sampling. + */ +static inline bool +drm_format_info_is_yuv_sampling_422(const struct drm_format_info *info) +{ + return info->is_yuv && info->hsub == 2 && info->vsub == 1; +} + +/** + * drm_format_info_is_yuv_sampling_444 - check that the format info matches a + * YUV format with 4:4:4 sub-sampling + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a YUV format with 4:4:4 + * sub-sampling. + */ +static inline bool +drm_format_info_is_yuv_sampling_444(const struct drm_format_info *info) +{ + return info->is_yuv && info->hsub == 1 && info->vsub == 1; +} + const struct drm_format_info *__drm_format_info(u32 format); const struct drm_format_info *drm_format_info(u32 format); const struct drm_format_info *