diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/color/color_gamma.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/color/color_gamma.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h new file mode 100644 index 0000000000..ee5c466613 --- /dev/null +++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h @@ -0,0 +1,129 @@ +/* + * 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_ */ |