projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| a49d2536 AC |
1 | /* |
| 2 | * Support for Intel Camera Imaging ISP subsystem. | |
| 3 | * Copyright (c) 2015, Intel Corporation. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms and conditions of the GNU General Public License, | |
| 7 | * version 2, as published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef __IA_CSS_MACC_TYPES_H | |
| 16 | #define __IA_CSS_MACC_TYPES_H | |
| 17 | ||
| d929fb4e | 18 | /* @file |
| a49d2536 AC |
19 | * CSS-API header file for Multi-Axis Color Correction (MACC) parameters. |
| 20 | */ | |
| 21 | ||
| d929fb4e | 22 | /* Number of axes in the MACC table. */ |
| a49d2536 | 23 | #define IA_CSS_MACC_NUM_AXES 16 |
| d929fb4e | 24 | /* Number of coefficients per MACC axes. */ |
| a49d2536 | 25 | #define IA_CSS_MACC_NUM_COEFS 4 |
| d929fb4e | 26 | /* The number of planes in the morphing table. */ |
| a49d2536 | 27 | |
| d929fb4e | 28 | /* Multi-Axis Color Correction (MACC) table. |
| a49d2536 AC |
29 | * |
| 30 | * ISP block: MACC1 (MACC by only matrix) | |
| 31 | * MACC2 (MACC by matrix and exponent(ia_css_macc_config)) | |
| 32 | * ISP1: MACC1 is used. | |
| 33 | * ISP2: MACC2 is used. | |
| 34 | * | |
| 35 | * [MACC1] | |
| 36 | * OutU = (data00 * InU + data01 * InV) >> 13 | |
| 37 | * OutV = (data10 * InU + data11 * InV) >> 13 | |
| 38 | * | |
| 39 | * default/ineffective: | |
| 40 | * OutU = (8192 * InU + 0 * InV) >> 13 | |
| 41 | * OutV = ( 0 * InU + 8192 * InV) >> 13 | |
| 42 | * | |
| 43 | * [MACC2] | |
| 44 | * OutU = (data00 * InU + data01 * InV) >> (13 - exp) | |
| 45 | * OutV = (data10 * InU + data11 * InV) >> (13 - exp) | |
| 46 | * | |
| 47 | * default/ineffective: (exp=1) | |
| 48 | * OutU = (4096 * InU + 0 * InV) >> (13 - 1) | |
| 49 | * OutV = ( 0 * InU + 4096 * InV) >> (13 - 1) | |
| 50 | */ | |
| 51 | ||
| 52 | struct ia_css_macc_table { | |
| 53 | int16_t data[IA_CSS_MACC_NUM_COEFS * IA_CSS_MACC_NUM_AXES]; | |
| d929fb4e | 54 | /** 16 of 2x2 matix |
| a49d2536 AC |
55 | MACC1: s2.13, [-65536,65535] |
| 56 | default/ineffective: | |
| 57 | 16 of "identity 2x2 matix" {8192,0,0,8192} | |
| 58 | MACC2: s[macc_config.exp].[13-macc_config.exp], [-8192,8191] | |
| 59 | default/ineffective: (s1.12) | |
| 60 | 16 of "identity 2x2 matix" {4096,0,0,4096} */ | |
| 61 | }; | |
| 62 | ||
| 63 | #endif /* __IA_CSS_MACC_TYPES_H */ |