linux/drivers/gpu/drm/amd/display/modules/color/color_gamma.h

/*
 * Copyright 2016 Advanced Micro Devices, Inc.
 *
 * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
 *
 * Authors: AMD
 *
 */

#ifndef COLOR_MOD_COLOR_GAMMA_H_
#define COLOR_MOD_COLOR_GAMMA_H_

#include "color_table.h"

struct dc_transfer_func;
struct dc_gamma;
struct dc_transfer_func_distributed_points;
struct dc_rgb_fixed;
struct dc_color_caps;
enum dc_transfer_func_predefined;

/* For SetRegamma ADL interface support
 * Must match escape type
 */
regamma_flags;

struct regamma_ramp { … };

struct regamma_coeff { … };

struct regamma_lut { … };

struct hdr_tm_params { … };

struct calculate_buffer { … };

struct translate_from_linear_space_args { … };

void setup_x_points_distribution(void);
void log_x_points_distribution(struct dal_logger *logger);
void precompute_pq(void);
void precompute_de_pq(void);

bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
		const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed,
		const struct hdr_tm_params *fs_params,
		struct calculate_buffer *cal_buffer);

bool mod_color_calculate_degamma_params(struct dc_color_caps *dc_caps,
		struct dc_transfer_func *output_tf,
		const struct dc_gamma *ramp, bool mapUserRamp);

bool calculate_user_regamma_coeff(struct dc_transfer_func *output_tf,
		const struct regamma_lut *regamma,
		struct calculate_buffer *cal_buffer,
		const struct dc_gamma *ramp);

bool calculate_user_regamma_ramp(struct dc_transfer_func *output_tf,
		const struct regamma_lut *regamma,
		struct calculate_buffer *cal_buffer,
		const struct dc_gamma *ramp);


#endif /* COLOR_MOD_COLOR_GAMMA_H_ */