1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2015, Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 */ 15 16 #if !defined(HAS_NO_HMEM) 17 18 #include "ia_css_types.h" 19 #include "sh_css_internal.h" 20 #include "assert_support.h" 21 #include "sh_css_frac.h" 22 23 #include "ia_css_bh.host.h" 24 25 void 26 ia_css_bh_hmem_decode( 27 struct ia_css_3a_rgby_output *out_ptr, 28 const struct ia_css_bh_table *hmem_buf) 29 { 30 int i; 31 32 /* 33 * No weighted histogram, hence no grid definition 34 */ 35 if (!hmem_buf) 36 return; 37 assert(sizeof_hmem(HMEM0_ID) == sizeof(*hmem_buf)); 38 39 /* Deinterleave */ 40 for (i = 0; i < HMEM_UNIT_SIZE; i++) { 41 out_ptr[i].r = hmem_buf->hmem[BH_COLOR_R][i]; 42 out_ptr[i].g = hmem_buf->hmem[BH_COLOR_G][i]; 43 out_ptr[i].b = hmem_buf->hmem[BH_COLOR_B][i]; 44 out_ptr[i].y = hmem_buf->hmem[BH_COLOR_Y][i]; 45 /* sh_css_print ("hmem[%d] = %d, %d, %d, %d\n", 46 i, out_ptr[i].r, out_ptr[i].g, out_ptr[i].b, out_ptr[i].y); */ 47 } 48 } 49 50 void 51 ia_css_bh_encode( 52 struct sh_css_isp_bh_params *to, 53 const struct ia_css_3a_config *from, 54 unsigned int size) 55 { 56 (void)size; 57 /* coefficients to calculate Y */ 58 to->y_coef_r = 59 uDIGIT_FITTING(from->ae_y_coef_r, 16, SH_CSS_AE_YCOEF_SHIFT); 60 to->y_coef_g = 61 uDIGIT_FITTING(from->ae_y_coef_g, 16, SH_CSS_AE_YCOEF_SHIFT); 62 to->y_coef_b = 63 uDIGIT_FITTING(from->ae_y_coef_b, 16, SH_CSS_AE_YCOEF_SHIFT); 64 } 65 66 #endif 67