weston/libweston/backend-drm/libdrm-updates.h

/*
 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
 * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
 * Copyright (c) 2008 Red Hat Inc.
 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
 * Copyright (c) 2007-2008 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#pragma once

#include <xf86drmMode.h>

/*
 * This header contains fallback definitions copied from libdrm upstream to
 * avoid hard-depending on too new libdrm.
 */

#if !HAVE_LIBDRM_HDR

/**
 * struct hdr_metadata_infoframe - HDR Metadata Infoframe Data.
 *
 * HDR Metadata Infoframe as per CTA 861.G spec. This is expected
 * to match exactly with the spec.
 *
 * Userspace is expected to pass the metadata information as per
 * the format described in this structure.
 */
struct hdr_metadata_infoframe {
	/**
	 * @eotf: Electro-Optical Transfer Function (EOTF)
	 * used in the stream.
	 */
	__u8 eotf;
	/**
	 * @metadata_type: Static_Metadata_Descriptor_ID.
	 */
	__u8 metadata_type;
	/**
	 * @display_primaries: Color Primaries of the Data.
	 * These are coded as unsigned 16-bit values in units of
	 * 0.00002, where 0x0000 represents zero and 0xC350
	 * represents 1.0000.
	 * @display_primaries.x: X cordinate of color primary.
	 * @display_primaries.y: Y cordinate of color primary.
	 */
	struct {
		__u16 x, y;
		} display_primaries[3];
	/**
	 * @white_point: White Point of Colorspace Data.
	 * These are coded as unsigned 16-bit values in units of
	 * 0.00002, where 0x0000 represents zero and 0xC350
	 * represents 1.0000.
	 * @white_point.x: X cordinate of whitepoint of color primary.
	 * @white_point.y: Y cordinate of whitepoint of color primary.
	 */
	struct {
		__u16 x, y;
		} white_point;
	/**
	 * @max_display_mastering_luminance: Max Mastering Display Luminance.
	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
	 */
	__u16 max_display_mastering_luminance;
	/**
	 * @min_display_mastering_luminance: Min Mastering Display Luminance.
	 * This value is coded as an unsigned 16-bit value in units of
	 * 0.0001 cd/m2, where 0x0001 represents 0.0001 cd/m2 and 0xFFFF
	 * represents 6.5535 cd/m2.
	 */
	__u16 min_display_mastering_luminance;
	/**
	 * @max_cll: Max Content Light Level.
	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
	 */
	__u16 max_cll;
	/**
	 * @max_fall: Max Frame Average Light Level.
	 * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
	 * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
	 */
	__u16 max_fall;
};

/**
 * struct hdr_output_metadata - HDR output metadata
 *
 * Metadata Information to be passed from userspace
 */
struct hdr_output_metadata {
	/**
	 * @metadata_type: Static_Metadata_Descriptor_ID.
	 */
	__u32 metadata_type;
	/**
	 * @hdmi_metadata_type1: HDR Metadata Infoframe.
	 */
	union {
		struct hdr_metadata_infoframe hdmi_metadata_type1;
	};
};

#endif /* !HAVE_LIBDRM_HDR */