weston/libweston/backend-drm/libdrm-updates.h
Pekka Paalanen 6914064066 backend-drm: add HDR_OUTPUT_METADATA definitions
These are fallback definitions in case libdrm is not new enough.
They are copied from libdrm 2.4.107.

struct hdr_output_metadata defines the contents of the blob to be used
with the connector property "HDR_OUTPUT_METADATA".

This is needed for programming a HDR mode in KMS.

This headers need to be excluded from Doxygen, because Doxygen chokes on
the kerneldoc markup.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2022-05-02 12:19:24 +00:00

125 lines
4.0 KiB
C

/*
* 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 */