From patchwork Mon Mar 6 10:46:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13160947 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 312D5C61DA4 for ; Mon, 6 Mar 2023 10:50:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7809910E228; Mon, 6 Mar 2023 10:50:02 +0000 (UTC) Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) by gabe.freedesktop.org (Postfix) with ESMTPS id 897D510E226 for ; Mon, 6 Mar 2023 10:49:58 +0000 (UTC) Received: from compute6.internal (compute6.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id E2F365C01D1; Mon, 6 Mar 2023 05:49:57 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Mon, 06 Mar 2023 05:49:57 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:sender:subject:subject:to:to; s=fm2; t= 1678099797; x=1678186197; bh=3LgWprbX5kA5Va6btukRYvTCS0RBMIhdHYR 4XuAfLz0=; b=afEgjWaZ9jP611VXN/fYX6bLaJqszML5NEiQnCn4MSVmsxLB6pc dM4u8YHKHV918ptc41kqgx5QyEdNIxMNVf8nXaricQaOQxYUzmns8y+NnP9XlnhT qxqHF5rFz7Ck8bP43Mvw3pbg8IW3K4xTPmgZJfgGY5vXx0eEkhEB4K36GqlxeF5P OIMsG8p0ZP66eWwKsb3VntJOLyqL15ndsjV2/3n9eUORpm13oWX+O6h1UFSYYGii Hsppjp0+Qdp7hbUPDhSyxoaCdRd+tb44LJv9P7HvStRWPd3Rb4ZPq1V3JMAst4EG xPyOFnVlmzu0pRsHHeczENYn0P37T6YGJSw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:sender:subject:subject:to:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t= 1678099797; x=1678186197; bh=3LgWprbX5kA5Va6btukRYvTCS0RBMIhdHYR 4XuAfLz0=; b=DDy9neEkmfzCQ7YhCL0ka9SaAdNkguHqmXmUUVHwDAwttD12KRs KalbVrB4ZbohDmAMHSximmXFhDggODlbO+Kdvit1y1PlohTbYdPm3N+UE7otrtHx tlZAa3YwrlYTCkH4FEC8tIfy0obkKLF5h0Y3HGcazyNTglnmiuxYTNdMbnqC9yQu GMRTY2JzC4rOgpwzlVONrpYW3VNn4cM4HmqP7/FLiaFkRiLyHBTK/Nt9nPYfRhFD IxZvpg9+O5zq0F132tYKQbs7uEvpAv8xD1s60/50hjcoRCO4zziTYgvUu4RQtzE0 UyzXnVgewwZAuQi3r8aMOnzRqJNmIuqDc1g== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvddtiedgvddtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephfffufggtgfgkfhfjgfvvefosehtjeertdertdejnecuhfhrohhmpeforgig ihhmvgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrf grthhtvghrnhepvedvleeijeegvdekffehkeehieelhfeggfffheetkeeuledvtdeuffeh teeltdffnecuvehluhhsthgvrhfuihiivgepudenucfrrghrrghmpehmrghilhhfrhhomh epmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Feedback-ID: i8771445c:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 6 Mar 2023 05:49:57 -0500 (EST) From: Maxime Ripard Date: Mon, 06 Mar 2023 11:46:49 +0100 Subject: [PATCH v3 8/9] drm/vc4: hdmi: Add BT.601 Support MIME-Version: 1.0 Message-Id: <20221207-rpi-hdmi-improvements-v3-8-bdd54f66884e@cerno.tech> References: <20221207-rpi-hdmi-improvements-v3-0-bdd54f66884e@cerno.tech> In-Reply-To: <20221207-rpi-hdmi-improvements-v3-0-bdd54f66884e@cerno.tech> To: Emma Anholt , Maxime Ripard , David Airlie , Daniel Vetter X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2186; i=maxime@cerno.tech; h=from:subject:message-id; bh=ycrDK940BO7WIBUGy7jz8rSeJQgc2LgRhkJYTmg16KI=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDCmsR2ZsndDGfDvypHiFoebbCo/3iTM5LG2Cb2Z02yStnN6w 90NFRykLgxgXg6yYIkuMsPmSuFOzXney8c2DmcPKBDKEgYtTACbSp8Xwzzbl5YsjgVr+Tzm7xb7vS3 r5vc7rY+Tx8BzZfFFFicnTKhgZXsu7TynP6pLefNY77nIBy3y5P7UfXR0q3ty1Vvu68X82PwA= X-Developer-Key: i=maxime@cerno.tech; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D 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: Dave Stevenson , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Hans Verkuil , Maxime Ripard , Thomas Zimmermann Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Dave Stevenson Even though we report that we support the BT601 Colorspace, we were always using the BT.709 conversion matrices. Let's add the BT601 ones. Signed-off-by: Dave Stevenson Reviewed-by: Thomas Zimmermann Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_hdmi.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 1424835bd83e..ad38cac3d1b9 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1240,6 +1240,37 @@ static const u16 vc5_hdmi_csc_full_rgb_to_rgb[2][3][4] = { }, }; +/* + * Conversion between Full Range RGB and YUV using the BT.601 Colorspace + * + * Matrices are signed 2p13 fixed point, with signed 9p6 offsets + */ +static const u16 vc5_hdmi_csc_full_rgb_to_yuv_bt601[2][3][4] = { + { + /* + * Full Range + * + * [ 0.299000 0.587000 0.114000 0 ] + * [ -0.168736 -0.331264 0.500000 128 ] + * [ 0.500000 -0.418688 -0.081312 128 ] + */ + { 0x0991, 0x12c9, 0x03a6, 0x0000 }, + { 0xfa9b, 0xf567, 0x1000, 0x2000 }, + { 0x1000, 0xf29b, 0xfd67, 0x2000 }, + }, + { + /* Limited Range + * + * [ 0.255785 0.502160 0.097523 16 ] + * [ -0.147644 -0.289856 0.437500 128 ] + * [ 0.437500 -0.366352 -0.071148 128 ] + */ + { 0x082f, 0x1012, 0x031f, 0x0400 }, + { 0xfb48, 0xf6ba, 0x0e00, 0x2000 }, + { 0x0e00, 0xf448, 0xfdba, 0x2000 }, + }, +}; + /* * Conversion between Full Range RGB and YUV using the BT.709 Colorspace * @@ -1303,6 +1334,13 @@ static const u16 (*vc5_hdmi_find_yuv_csc_coeffs(struct vc4_hdmi *vc4_hdmi, u32 colorspace, bool limited))[4] { switch (colorspace) { + case DRM_MODE_COLORIMETRY_SMPTE_170M_YCC: + case DRM_MODE_COLORIMETRY_XVYCC_601: + case DRM_MODE_COLORIMETRY_SYCC_601: + case DRM_MODE_COLORIMETRY_OPYCC_601: + case DRM_MODE_COLORIMETRY_BT601_YCC: + return vc5_hdmi_csc_full_rgb_to_yuv_bt601[limited]; + default: case DRM_MODE_COLORIMETRY_NO_DATA: case DRM_MODE_COLORIMETRY_BT709_YCC: