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 #if !defined(HAS_NO_HMEM) 16 17 #include "ia_css_types.h" 18 #include "sh_css_internal.h" 19 #include "assert_support.h" 20 #include "sh_css_frac.h" 21 22 #include "ia_css_bh.host.h" 23 24 void 25 ia_css_bh_hmem_decode( 26 struct ia_css_3a_rgby_output *out_ptr, 27 const struct ia_css_bh_table *hmem_buf) 28 { 29 int i; 30 31 /* 32 * No weighted histogram, hence no grid definition 33 */ 34 if (!hmem_buf) 35 return; 36 assert(sizeof_hmem(HMEM0_ID) == sizeof(*hmem_buf)); 37 38 /* Deinterleave */ 39 for (i = 0; i < HMEM_UNIT_SIZE; i++) { 40 out_ptr[i].r = hmem_buf->hmem[BH_COLOR_R][i]; 41 out_ptr[i].g = hmem_buf->hmem[BH_COLOR_G][i]; 42 out_ptr[i].b = hmem_buf->hmem[BH_COLOR_B][i]; 43 out_ptr[i].y = hmem_buf->hmem[BH_COLOR_Y][i]; 44 /* sh_css_print ("hmem[%d] = %d, %d, %d, %d\n", 45 i, out_ptr[i].r, out_ptr[i].g, out_ptr[i].b, out_ptr[i].y); */ 46 } 47 } 48 49 void 50 ia_css_bh_encode( 51 struct sh_css_isp_bh_params *to, 52 const struct ia_css_3a_config *from, 53 unsigned int size) 54 { 55 (void)size; 56 /* coefficients to calculate Y */ 57 to->y_coef_r = 58 uDIGIT_FITTING(from->ae_y_coef_r, 16, SH_CSS_AE_YCOEF_SHIFT); 59 to->y_coef_g = 60 uDIGIT_FITTING(from->ae_y_coef_g, 16, SH_CSS_AE_YCOEF_SHIFT); 61 to->y_coef_b = 62 uDIGIT_FITTING(from->ae_y_coef_b, 16, SH_CSS_AE_YCOEF_SHIFT); 63 } 64 65 #endif 66