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Fri, 29 May 2020 11:48:00 +0000 From: Ben Davis To: dri-devel@lists.freedesktop.org Subject: [PATCH v2] drm: drm_fourcc: add NV15, Q410, Q401 YUV formats Date: Fri, 29 May 2020 12:47:26 +0100 Message-Id: <20200529114726.13926-1-ben.davis@arm.com> X-Mailer: git-send-email 2.24.0 X-ClientProxiedBy: LO2P265CA0010.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:62::22) To AM6PR08MB4422.eurprd08.prod.outlook.com (2603:10a6:20b:be::13) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from e113060-lin.cambridge.arm.com (217.140.106.55) by LO2P265CA0010.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:62::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3045.21 via Frontend Transport; Fri, 29 May 2020 11:47:59 +0000 X-Mailer: git-send-email 2.24.0 X-Originating-IP: [217.140.106.55] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 289106b1-be6f-4175-b728-08d803c6276a X-MS-TrafficTypeDiagnostic: AM6PR08MB5238:|DB7PR08MB3482: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true NoDisclaimer: true X-MS-Oob-TLC-OOBClassifiers: OLM:5516;OLM:5516; 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Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR08MB3482 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: tzimmermann@suse.de, Jonas Karlman , airlied@linux.ie, liviu.dudau@arm.com, matteo.franchin@arm.com, nd@arm.com, Ben Davis Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" DRM_FORMAT_NV15 is a 2 plane format suitable for linear and 16x16 block-linear memory layouts. The format is similar to P010 with 4:2:0 sub-sampling but has no padding between components. Instead, luminance and chrominance samples are grouped into 4s so that each group is packed into an integer number of bytes: YYYY = UVUV = 4 * 10 bits = 40 bits = 5 bytes The '15' suffix refers to the optimum effective bits per pixel which is achieved when the total number of luminance samples is a multiple of 8. Q410 and Q401 are both 3 plane non-subsampled formats with 16 bits per component, but only 10 bits are used and 6 are padded. 'Q' is chosen as the first letter to denote 3 plane YUV444, (and is the next letter along from P which is usually 2 plane). V2: Updated block_w of NV15 to {4, 2, 0} NV15: Tested-by: Jonas Karlman Reviewed-by: Brian Starkey Signed-off-by: Ben Davis --- drivers/gpu/drm/drm_fourcc.c | 12 ++++++++++++ include/uapi/drm/drm_fourcc.h | 24 ++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index b234bfaeda06..722c7ebe4e88 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -274,6 +274,18 @@ const struct drm_format_info *__drm_format_info(u32 format) { .format = DRM_FORMAT_YUV420_10BIT, .depth = 0, .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true }, + { .format = DRM_FORMAT_NV15, .depth = 0, + .num_planes = 2, .char_per_block = { 5, 5, 0 }, + .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2, + .vsub = 2, .is_yuv = true }, + { .format = DRM_FORMAT_Q410, .depth = 0, + .num_planes = 3, .char_per_block = { 2, 2, 2 }, + .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0, + .vsub = 0, .is_yuv = true }, + { .format = DRM_FORMAT_Q401, .depth = 0, + .num_planes = 3, .char_per_block = { 2, 2, 2 }, + .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0, + .vsub = 0, .is_yuv = true }, }; unsigned int i; diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 9e488d10f8b4..bed51236aed9 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -236,6 +236,12 @@ extern "C" { #define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ #define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */ #define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */ +/* + * 2 plane YCbCr + * index 0 = Y plane, [39:0] Y3:Y2:Y1:Y0 little endian + * index 1 = Cr:Cb plane, [39:0] Cr1:Cb1:Cr0:Cb0 little endian + */ +#define DRM_FORMAT_NV15 fourcc_code('N', 'V', '1', '5') /* 2x2 subsampled Cr:Cb plane */ /* * 2 plane YCbCr MSB aligned @@ -265,6 +271,24 @@ extern "C" { */ #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */ + +/* 3 plane non-subsampled (444) YCbCr + * 16 bits per component, but only 10 bits are used and 6 bits are padded + * index 0: Y plane, [15:0] Y:x [10:6] little endian + * index 1: Cb plane, [15:0] Cb:x [10:6] little endian + * index 2: Cr plane, [15:0] Cr:x [10:6] little endian + */ +#define DRM_FORMAT_Q410 fourcc_code('Q', '4', '1', '0') + +/* 3 plane non-subsampled (444) YCrCb + * 16 bits per component, but only 10 bits are used and 6 bits are padded + * index 0: Y plane, [15:0] Y:x [10:6] little endian + * index 1: Cr plane, [15:0] Cr:x [10:6] little endian + * index 2: Cb plane, [15:0] Cb:x [10:6] little endian + */ +#define DRM_FORMAT_Q401 fourcc_code('Q', '4', '0', '1') + + /* * 3 plane YCbCr * index 0: Y plane, [7:0] Y -- 2.24.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel