// SPDX-License-Identifier: GPL-2.0
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/*
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* Support for Intel Camera Imaging ISP subsystem.
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* Copyright (c) 2015, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#if !defined(HAS_NO_HMEM)
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#include "ia_css_types.h"
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#include "sh_css_internal.h"
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#include "assert_support.h"
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#include "sh_css_frac.h"
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#include "ia_css_bh.host.h"
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void
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ia_css_bh_hmem_decode(
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struct ia_css_3a_rgby_output *out_ptr,
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const struct ia_css_bh_table *hmem_buf)
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{
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int i;
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/*
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* No weighted histogram, hence no grid definition
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*/
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if (!hmem_buf)
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return;
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assert(sizeof_hmem(HMEM0_ID) == sizeof(*hmem_buf));
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/* Deinterleave */
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for (i = 0; i < HMEM_UNIT_SIZE; i++) {
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out_ptr[i].r = hmem_buf->hmem[BH_COLOR_R][i];
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out_ptr[i].g = hmem_buf->hmem[BH_COLOR_G][i];
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out_ptr[i].b = hmem_buf->hmem[BH_COLOR_B][i];
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out_ptr[i].y = hmem_buf->hmem[BH_COLOR_Y][i];
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/* sh_css_print ("hmem[%d] = %d, %d, %d, %d\n",
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i, out_ptr[i].r, out_ptr[i].g, out_ptr[i].b, out_ptr[i].y); */
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}
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}
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void
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ia_css_bh_encode(
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struct sh_css_isp_bh_params *to,
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const struct ia_css_3a_config *from,
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unsigned int size)
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{
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(void)size;
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/* coefficients to calculate Y */
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to->y_coef_r =
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uDIGIT_FITTING(from->ae_y_coef_r, 16, SH_CSS_AE_YCOEF_SHIFT);
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to->y_coef_g =
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uDIGIT_FITTING(from->ae_y_coef_g, 16, SH_CSS_AE_YCOEF_SHIFT);
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to->y_coef_b =
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uDIGIT_FITTING(from->ae_y_coef_b, 16, SH_CSS_AE_YCOEF_SHIFT);
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}
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#endif
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