| /* |
| * Support for Intel Camera Imaging ISP subsystem. |
| * Copyright (c) 2015, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| */ |
| |
| #ifndef __IA_CSS_MACC_TYPES_H |
| #define __IA_CSS_MACC_TYPES_H |
| |
| /** @file |
| * CSS-API header file for Multi-Axis Color Correction (MACC) parameters. |
| */ |
| |
| /** Number of axes in the MACC table. */ |
| #define IA_CSS_MACC_NUM_AXES 16 |
| /** Number of coefficients per MACC axes. */ |
| #define IA_CSS_MACC_NUM_COEFS 4 |
| /** The number of planes in the morphing table. */ |
| |
| /** Multi-Axis Color Correction (MACC) table. |
| * |
| * ISP block: MACC1 (MACC by only matrix) |
| * MACC2 (MACC by matrix and exponent(ia_css_macc_config)) |
| * ISP1: MACC1 is used. |
| * ISP2: MACC2 is used. |
| * |
| * [MACC1] |
| * OutU = (data00 * InU + data01 * InV) >> 13 |
| * OutV = (data10 * InU + data11 * InV) >> 13 |
| * |
| * default/ineffective: |
| * OutU = (8192 * InU + 0 * InV) >> 13 |
| * OutV = ( 0 * InU + 8192 * InV) >> 13 |
| * |
| * [MACC2] |
| * OutU = (data00 * InU + data01 * InV) >> (13 - exp) |
| * OutV = (data10 * InU + data11 * InV) >> (13 - exp) |
| * |
| * default/ineffective: (exp=1) |
| * OutU = (4096 * InU + 0 * InV) >> (13 - 1) |
| * OutV = ( 0 * InU + 4096 * InV) >> (13 - 1) |
| */ |
| |
| struct ia_css_macc_table { |
| int16_t data[IA_CSS_MACC_NUM_COEFS * IA_CSS_MACC_NUM_AXES]; |
| /**< 16 of 2x2 matix |
| MACC1: s2.13, [-65536,65535] |
| default/ineffective: |
| 16 of "identity 2x2 matix" {8192,0,0,8192} |
| MACC2: s[macc_config.exp].[13-macc_config.exp], [-8192,8191] |
| default/ineffective: (s1.12) |
| 16 of "identity 2x2 matix" {4096,0,0,4096} */ |
| }; |
| |
| #endif /* __IA_CSS_MACC_TYPES_H */ |
