/* * 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 */ union regamma_flags { unsigned int raw; struct { unsigned int gammaRampArray :1; // RegammaRamp is in use unsigned int gammaFromEdid :1; //gamma from edid is in use unsigned int gammaFromEdidEx :1; //gamma from edid is in use , but only for Display Id 1.2 unsigned int gammaFromUser :1; //user custom gamma is used unsigned int coeffFromUser :1; //coeff. A0-A3 from user is in use unsigned int coeffFromEdid :1; //coeff. A0-A3 from edid is in use unsigned int applyDegamma :1; //flag for additional degamma correction in driver unsigned int gammaPredefinedSRGB :1; //flag for SRGB gamma unsigned int gammaPredefinedPQ :1; //flag for PQ gamma unsigned int gammaPredefinedPQ2084Interim :1; //flag for PQ gamma, lower max nits unsigned int gammaPredefined36 :1; //flag for 3.6 gamma unsigned int gammaPredefinedReset :1; //flag to return to previous gamma } bits; }; struct regamma_ramp { unsigned short gamma[256*3]; // gamma ramp packed in same way as OS windows ,r , g & b }; struct regamma_coeff { int gamma[3]; int A0[3]; int A1[3]; int A2[3]; int A3[3]; }; struct regamma_lut { union regamma_flags flags; union { struct regamma_ramp ramp; struct regamma_coeff coeff; }; }; struct hdr_tm_params { unsigned int sdr_white_level; unsigned int min_content; // luminance in 1/10000 nits unsigned int max_content; // luminance in nits unsigned int min_display; // luminance in 1/10000 nits unsigned int max_display; // luminance in nits unsigned int skip_tm; // skip tm }; struct calculate_buffer { int buffer_index; struct fixed31_32 buffer[NUM_PTS_IN_REGION]; struct fixed31_32 gamma_of_2; }; struct translate_from_linear_space_args { struct fixed31_32 arg; struct fixed31_32 a0; struct fixed31_32 a1; struct fixed31_32 a2; struct fixed31_32 a3; struct fixed31_32 gamma; struct calculate_buffer *cal_buffer; }; 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_ */