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Thu, 23 Jan 2025 20:16:32 +0000 Message-ID: <9cc07dc9-ce0d-40cc-ae70-55a1b3f176e2@amd.com> Date: Thu, 23 Jan 2025 15:16:29 -0500 User-Agent: Mozilla Thunderbird Subject: Re: [V7 31/45] drm/colorop: add BT2020/BT709 OETF and Inverse OETF To: Pekka Paalanen , Alex Hung Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, wayland-devel@lists.freedesktop.org References: <20241220043410.416867-1-alex.hung@amd.com> <20241220043410.416867-32-alex.hung@amd.com> <20250116105622.577533fc@tisha> <20250117110641.7040f712@eldfell> Content-Language: en-US From: Harry Wentland In-Reply-To: <20250117110641.7040f712@eldfell> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: YT4PR01CA0307.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:10e::11) To CO6PR12MB5427.namprd12.prod.outlook.com (2603:10b6:5:358::13) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO6PR12MB5427:EE_|SA1PR12MB7104:EE_ X-MS-Office365-Filtering-Correlation-Id: 96b5db00-da3e-4aa9-03db-08dd3bead415 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7053199007; 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Since hardware designers decided to incorporate these curves > explicitly, what use was in mind? It's likely something I have > overlooked. > I'm not entirely sure myself, but gamescope does use it for displaying game streaming content. https://github.com/ValveSoftware/gamescope/blob/2f88849ac9dc7da5c678d5d7d3e9b58f38add1bf/src/Backends/DRMBackend.cpp#L2509 Harry > > Thanks, > pq