| /* |
| * 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 freesync_hdr_tf_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 freesync_hdr_tf_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 mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans, |
| struct dc_transfer_func_distributed_points *points); |
| |
| 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_ */ |