1 | /* |
2 | * Copyright 2016 Advanced Micro Devices, Inc. |
3 | * |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
5 | * copy of this software and associated documentation files (the "Software"), |
6 | * to deal in the Software without restriction, including without limitation |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
8 | * and/or sell copies of the Software, and to permit persons to whom the |
9 | * Software is furnished to do so, subject to the following conditions: |
10 | * |
11 | * The above copyright notice and this permission notice shall be included in |
12 | * all copies or substantial portions of the Software. |
13 | * |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
20 | * OTHER DEALINGS IN THE SOFTWARE. |
21 | * |
22 | * Authors: AMD |
23 | * |
24 | */ |
25 | |
26 | #ifndef COLOR_MOD_COLOR_GAMMA_H_ |
27 | #define COLOR_MOD_COLOR_GAMMA_H_ |
28 | |
29 | #include "color_table.h" |
30 | |
31 | struct dc_transfer_func; |
32 | struct dc_gamma; |
33 | struct dc_transfer_func_distributed_points; |
34 | struct dc_rgb_fixed; |
35 | struct dc_color_caps; |
36 | enum dc_transfer_func_predefined; |
37 | |
38 | /* For SetRegamma ADL interface support |
39 | * Must match escape type |
40 | */ |
41 | union regamma_flags { |
42 | unsigned int raw; |
43 | struct { |
44 | unsigned int gammaRampArray :1; // RegammaRamp is in use |
45 | unsigned int gammaFromEdid :1; //gamma from edid is in use |
46 | unsigned int gammaFromEdidEx :1; //gamma from edid is in use , but only for Display Id 1.2 |
47 | unsigned int gammaFromUser :1; //user custom gamma is used |
48 | unsigned int coeffFromUser :1; //coeff. A0-A3 from user is in use |
49 | unsigned int coeffFromEdid :1; //coeff. A0-A3 from edid is in use |
50 | unsigned int applyDegamma :1; //flag for additional degamma correction in driver |
51 | unsigned int gammaPredefinedSRGB :1; //flag for SRGB gamma |
52 | unsigned int gammaPredefinedPQ :1; //flag for PQ gamma |
53 | unsigned int gammaPredefinedPQ2084Interim :1; //flag for PQ gamma, lower max nits |
54 | unsigned int gammaPredefined36 :1; //flag for 3.6 gamma |
55 | unsigned int gammaPredefinedReset :1; //flag to return to previous gamma |
56 | } bits; |
57 | }; |
58 | |
59 | struct regamma_ramp { |
60 | unsigned short gamma[256*3]; // gamma ramp packed in same way as OS windows ,r , g & b |
61 | }; |
62 | |
63 | struct regamma_coeff { |
64 | int gamma[3]; |
65 | int A0[3]; |
66 | int A1[3]; |
67 | int A2[3]; |
68 | int A3[3]; |
69 | }; |
70 | |
71 | struct regamma_lut { |
72 | union regamma_flags flags; |
73 | union { |
74 | struct regamma_ramp ramp; |
75 | struct regamma_coeff coeff; |
76 | }; |
77 | }; |
78 | |
79 | struct hdr_tm_params { |
80 | unsigned int sdr_white_level; |
81 | unsigned int min_content; // luminance in 1/10000 nits |
82 | unsigned int max_content; // luminance in nits |
83 | unsigned int min_display; // luminance in 1/10000 nits |
84 | unsigned int max_display; // luminance in nits |
85 | unsigned int skip_tm; // skip tm |
86 | }; |
87 | |
88 | struct calculate_buffer { |
89 | int buffer_index; |
90 | struct fixed31_32 buffer[NUM_PTS_IN_REGION]; |
91 | struct fixed31_32 gamma_of_2; |
92 | }; |
93 | |
94 | struct translate_from_linear_space_args { |
95 | struct fixed31_32 arg; |
96 | struct fixed31_32 a0; |
97 | struct fixed31_32 a1; |
98 | struct fixed31_32 a2; |
99 | struct fixed31_32 a3; |
100 | struct fixed31_32 gamma; |
101 | struct calculate_buffer *cal_buffer; |
102 | }; |
103 | |
104 | void setup_x_points_distribution(void); |
105 | void log_x_points_distribution(struct dal_logger *logger); |
106 | void precompute_pq(void); |
107 | void precompute_de_pq(void); |
108 | |
109 | bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf, |
110 | const struct dc_gamma *ramp, bool mapUserRamp, bool canRomBeUsed, |
111 | const struct hdr_tm_params *fs_params, |
112 | struct calculate_buffer *cal_buffer); |
113 | |
114 | bool mod_color_calculate_degamma_params(struct dc_color_caps *dc_caps, |
115 | struct dc_transfer_func *output_tf, |
116 | const struct dc_gamma *ramp, bool mapUserRamp); |
117 | |
118 | bool calculate_user_regamma_coeff(struct dc_transfer_func *output_tf, |
119 | const struct regamma_lut *regamma, |
120 | struct calculate_buffer *cal_buffer, |
121 | const struct dc_gamma *ramp); |
122 | |
123 | bool calculate_user_regamma_ramp(struct dc_transfer_func *output_tf, |
124 | const struct regamma_lut *regamma, |
125 | struct calculate_buffer *cal_buffer, |
126 | const struct dc_gamma *ramp); |
127 | |
128 | |
129 | #endif /* COLOR_MOD_COLOR_GAMMA_H_ */ |
130 | |