/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef __DRM_COLOR_MGMT_H__
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#define __DRM_COLOR_MGMT_H__
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#include <linux/ctype.h>
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struct drm_crtc;
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struct drm_plane;
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uint32_t drm_color_lut_extract(uint32_t user_input, uint32_t bit_precision);
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void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
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uint degamma_lut_size,
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bool has_ctm,
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uint gamma_lut_size);
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void drm_crtc_enable_cubic_lut(struct drm_crtc *crtc, unsigned int cubic_lut_size);
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int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
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int gamma_size);
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/**
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* drm_color_lut_size - calculate the number of entries in the LUT
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* @blob: blob containing the LUT
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*
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* Returns:
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* The number of entries in the color LUT stored in @blob.
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*/
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static inline int drm_color_lut_size(const struct drm_property_blob *blob)
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{
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return blob->length / sizeof(struct drm_color_lut);
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}
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enum drm_color_encoding {
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DRM_COLOR_YCBCR_BT601,
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DRM_COLOR_YCBCR_BT709,
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DRM_COLOR_YCBCR_BT2020,
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DRM_COLOR_ENCODING_MAX,
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};
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enum drm_color_range {
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DRM_COLOR_YCBCR_LIMITED_RANGE,
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DRM_COLOR_YCBCR_FULL_RANGE,
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DRM_COLOR_RANGE_MAX,
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};
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int drm_plane_create_color_properties(struct drm_plane *plane,
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u32 supported_encodings,
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u32 supported_ranges,
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enum drm_color_encoding default_encoding,
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enum drm_color_range default_range);
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#endif
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