From patchwork Tue Aug 29 16:03:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Uma Shankar X-Patchwork-Id: 13369126 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A8085C83F12 for ; Tue, 29 Aug 2023 15:59:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2685F10E3E6; Tue, 29 Aug 2023 15:59:06 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7FC5810E3E2; Tue, 29 Aug 2023 15:59:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693324740; x=1724860740; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FB7ss4kmHop2yaKxXN25+gcSbQ8RmW+Dh4y7g/Bgb5o=; b=RRN+8jELxiRNyqp2ZeAZgYcJZEm5bZAF6L9P/5qZJUMdFOMzRjTLwOJn gxtR6ZpA1bRILLq4WPbIoNS9Sd7bELeIVgDo4LgUlr2owwU5E4gAi5DKc +HR4ZlLpsm46xtfx7311AlnWS2CPj/CuhhAcTTvsxVx3lRMCOcBYXChTc 8LvtTLc86Ut6z+fRJeuEUsff02wdvjH+BY8XZ7uH63+D8j0z3WfEd6cNb UJbXMKgEh4iY/YnnkugdT+LYdeXZkIWIYp5MnPHdpa75ok/I05ydmoZ0E f36KKADNUf2NnyIJBxfl4a50rTmdLVbgdnyajKlxkpVUrEPe83girAEVi g==; X-IronPort-AV: E=McAfee;i="6600,9927,10817"; a="441769251" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="441769251" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 08:59:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10817"; a="688554994" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="688554994" Received: from cfl-desktop.iind.intel.com ([10.190.239.20]) by orsmga003.jf.intel.com with ESMTP; 29 Aug 2023 08:58:58 -0700 From: Uma Shankar To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [RFC 08/33] drm: Add color lut range structure Date: Tue, 29 Aug 2023 21:33:57 +0530 Message-ID: <20230829160422.1251087-9-uma.shankar@intel.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230829160422.1251087-1-uma.shankar@intel.com> References: <20230829160422.1251087-1-uma.shankar@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: Uma Shankar , Chaitanya Kumar Borah , wayland-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add color lut range structure which is to be used to advertize the capabilities of pre-csc/post-csc color operation blocks. Co-developed-by: Chaitanya Kumar Borah Signed-off-by: Chaitanya Kumar Borah Signed-off-by: Uma Shankar --- include/uapi/drm/drm_mode.h | 77 +++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 1cd656b0e994..6ce7bd0926e0 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -1091,6 +1091,83 @@ struct drm_color_pipeline { DRM_MODE_PAGE_FLIP_ASYNC | \ DRM_MODE_PAGE_FLIP_TARGET) +/** + * DRM_MODE_LUT_POST_CSC + * + * LUT is for post csc (after CTM) + */ +#define DRM_MODE_LUT_POST_CSC BIT(0) + +/** + * DRM_MODE_LUT_PRE_CSC + * + * LUT is for pre csc (before CTM) + */ +#define DRM_MODE_LUT_PRE_CSC BIT(1) + +/** + * DRM_MODE_LUT_INTERPOLATE + * + * linearly interpolate between the points + */ +#define DRM_MODE_LUT_INTERPOLATE BIT(2) + +/** + * DRM_MODE_LUT_REUSE_LAST + * + * the last value of the previous range is the + * first value of the current range. + */ +#define DRM_MODE_LUT_REUSE_LAST BIT(3) + +/** + * DRM_MODE_LUT_NON_DECREASING + * + * the curve must be non-decreasing + */ +#define DRM_MODE_LUT_NON_DECREASING BIT(4) + +/** + * DRM_MODE_LUT_REFLECT_NEGATIVE + * + * the curve is reflected across origin for negative inputs + */ +#define DRM_MODE_LUT_REFLECT_NEGATIVE BIT(5) + +/** + * DRM_MODE_LUT_SINGLE_CHANNEL + * + * the same curve (red) is used for blue and green channels as well + */ +#define DRM_MODE_LUT_SINGLE_CHANNEL BIT(6) + +/** + * struct drm_color_lut_range + * + * structure to advertise capability of a color hardware + * block that accepts LUT values. It can represent LUTs with + * varied number of entries and distributions + * (Multi segmented, Logarithmic etc). + */ + +struct drm_color_lut_range { + /* DRM_MODE_LUT_* */ + __u32 flags; + /* number of points on the curve */ + __u16 count; + /* input/output bits per component */ + __u8 input_bpc, output_bpc; + /* input start/end values */ + __s32 start, end; + /* output min/max values */ + __s32 min, max; +}; + +enum lut_type { + LUT_TYPE_PRE_CSC = 0, + LUT_TYPE_POST_CSC = 1, +}; + /* * Request a page flip on the specified crtc. *