| /* |
| * 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_CSC_TYPES_H |
| #define __IA_CSS_CSC_TYPES_H |
| |
| /** @file |
| * CSS-API header file for Color Space Conversion parameters. |
| */ |
| |
| /** Color Correction configuration. |
| * |
| * This structure is used for 3 cases. |
| * ("YCgCo" is the output format of Demosaic.) |
| * |
| * 1. Color Space Conversion (YCgCo to YUV) for ISP1. |
| * ISP block: CSC1 (Color Space Conversion) |
| * struct ia_css_cc_config *cc_config |
| * |
| * 2. Color Correction Matrix (YCgCo to RGB) for ISP2. |
| * ISP block: CCM2 (Color Correction Matrix) |
| * struct ia_css_cc_config *yuv2rgb_cc_config |
| * |
| * 3. Color Space Conversion (RGB to YUV) for ISP2. |
| * ISP block: CSC2 (Color Space Conversion) |
| * struct ia_css_cc_config *rgb2yuv_cc_config |
| * |
| * default/ineffective: |
| * 1. YCgCo -> YUV |
| * 1 0.174 0.185 |
| * 0 -0.66252 -0.66874 |
| * 0 -0.83738 0.58131 |
| * |
| * fraction_bits = 12 |
| * 4096 713 758 |
| * 0 -2714 -2739 |
| * 0 -3430 2381 |
| * |
| * 2. YCgCo -> RGB |
| * 1 -1 1 |
| * 1 1 0 |
| * 1 -1 -1 |
| * |
| * fraction_bits = 12 |
| * 4096 -4096 4096 |
| * 4096 4096 0 |
| * 4096 -4096 -4096 |
| * |
| * 3. RGB -> YUV |
| * 0.299 0.587 0.114 |
| * -0.16874 -0.33126 0.5 |
| * 0.5 -0.41869 -0.08131 |
| * |
| * fraction_bits = 13 |
| * 2449 4809 934 |
| * -1382 -2714 4096 |
| * 4096 -3430 -666 |
| */ |
| struct ia_css_cc_config { |
| uint32_t fraction_bits;/**< Fractional bits of matrix. |
| u8.0, [0,13] */ |
| int32_t matrix[3 * 3]; /**< Conversion matrix. |
| s[13-fraction_bits].[fraction_bits], |
| [-8192,8191] */ |
| }; |
| |
| #endif /* __IA_CSS_CSC_TYPES_H */ |
