From patchwork Tue Dec 4 14:21:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 10711915 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 869A21731 for ; Tue, 4 Dec 2018 14:23:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 739AD2BA71 for ; Tue, 4 Dec 2018 14:23:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 67EC12BA78; Tue, 4 Dec 2018 14:23:27 +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 37A1F2BA72 for ; Tue, 4 Dec 2018 14:23:26 +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=Ui9z05LkFxr1NL5DA0pIFzUM3UxwM67yCAtu2Usae9Q=; b=GwnojEA2BsF0wx FWo50v4z6BURJ4rySj/DBT+xuUS/ubDg69YJ5w45/q9jRR9J21p/ochYZqcB+c/GmoO6BJRMJGHl9 jGLa8mN2cYBavllG9/P1UJWce+rdsyGcgoUVa0YkZpZvz1E+sdBgGhwCKA5+YsrHaYGEFY7Bz1qsy Fa3WBWE7jFWh/Ml0gpdRv+INOtyW9RLuoIQT7YnXl50EB+yN9eMOgd7XNJClHnBpZV8Op2fW9y3CB AuaEsm9KiAnIVdmGq/f+46mOaUk4yFw+hfZRKk8f4DSBZRt7lKRagRzryhPXj2UqUhuFkaVgEi5OI hDNmlRkDr38cr8jPcRMg==; 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 1gUBba-0007na-Pz; Tue, 04 Dec 2018 14:23:18 +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-0007eD-BC 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 C069720E31; 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 0153B20A58; Tue, 4 Dec 2018 15:22:38 +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 01/21] drm/fourcc: Add format info helpers for checking YUV planes disposition Date: Tue, 4 Dec 2018 15:21:58 +0100 Message-Id: <20181204142218.16284-2-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_517296_E996372E X-CRM114-Status: GOOD ( 11.04 ) 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 It is often useful to check whether the DRM format info retrieved from the DRM framebuffer matches a specific YUV planes disposition. This introduces helpers to quickly check that a provided format info matches a YUV format with a specific disposition, in commonly-used terminology. The intent of providing helpers taking the format info instead of the fourcc alone is to avoid the overhead of iterating through all formats when the whole format info structure is available. As a result, these helpers are very simple so they are made inline. Signed-off-by: Paul Kocialkowski Reviewed-by: Maxime Ripard --- include/drm/drm_fourcc.h | 42 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index bcb389f04618..01cd353d9302 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -143,6 +143,48 @@ struct drm_format_name_buf { char str[32]; }; +/** + * drm_format_info_is_yuv_packed - check that the format info matches a YUV + * format with data laid in a single plane + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a packed YUV format. + */ +static inline bool +drm_format_info_is_yuv_packed(const struct drm_format_info *info) +{ + return info->is_yuv && info->num_planes == 1; +} + +/** + * drm_format_info_is_yuv_semiplanar - check that the format info matches a YUV + * format with data laid in two planes (luminance and chrominance) + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a semiplanar YUV format. + */ +static inline bool +drm_format_info_is_yuv_semiplanar(const struct drm_format_info *info) +{ + return info->is_yuv && info->num_planes == 2; +} + +/** + * drm_format_info_is_yuv_planar - check that the format info matches a YUV + * format with data laid in three planes (one for each YUV component) + * @info: format info + * + * Returns: + * A boolean indicating whether the format info matches a planar YUV format. + */ +static inline bool +drm_format_info_is_yuv_planar(const struct drm_format_info *info) +{ + return info->is_yuv && info->num_planes == 3; +} + 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 *