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// SPDX-License-Identifier: GPL-2.0
/*
* (C) COPYRIGHT 2019 ARM Limited. All rights reserved.
* Author: James.Qian.Wang <james.qian.wang@arm.com>
*
*/
#include "komeda_color_mgmt.h"
/* 10bit precision YUV2RGB matrix */
static const s32 yuv2rgb_bt601_narrow[KOMEDA_N_YUV2RGB_COEFFS] = {
1192, 0, 1634,
1192, -401, -832,
1192, 2066, 0,
64, 512, 512
};
static const s32 yuv2rgb_bt601_wide[KOMEDA_N_YUV2RGB_COEFFS] = {
1024, 0, 1436,
1024, -352, -731,
1024, 1815, 0,
0, 512, 512
};
static const s32 yuv2rgb_bt709_narrow[KOMEDA_N_YUV2RGB_COEFFS] = {
1192, 0, 1836,
1192, -218, -546,
1192, 2163, 0,
64, 512, 512
};
static const s32 yuv2rgb_bt709_wide[KOMEDA_N_YUV2RGB_COEFFS] = {
1024, 0, 1613,
1024, -192, -479,
1024, 1900, 0,
0, 512, 512
};
static const s32 yuv2rgb_bt2020[KOMEDA_N_YUV2RGB_COEFFS] = {
1024, 0, 1476,
1024, -165, -572,
1024, 1884, 0,
0, 512, 512
};
const s32 *komeda_select_yuv2rgb_coeffs(u32 color_encoding, u32 color_range)
{
bool narrow = color_range == DRM_COLOR_YCBCR_LIMITED_RANGE;
const s32 *coeffs;
switch (color_encoding) {
case DRM_COLOR_YCBCR_BT709:
coeffs = narrow ? yuv2rgb_bt709_narrow : yuv2rgb_bt709_wide;
break;
case DRM_COLOR_YCBCR_BT601:
coeffs = narrow ? yuv2rgb_bt601_narrow : yuv2rgb_bt601_wide;
break;
case DRM_COLOR_YCBCR_BT2020:
coeffs = yuv2rgb_bt2020;
break;
default:
coeffs = NULL;
break;
}
return coeffs;
}
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