^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2019 Mentor Graphics Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/sizes.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "ipu-prv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define QUANT_MAP(q) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) ((q) == V4L2_QUANTIZATION_FULL_RANGE || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) (q) == V4L2_QUANTIZATION_DEFAULT ? 0 : 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* identity matrix */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static const struct ipu_ic_csc_params identity = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) { 128, 0, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) { 0, 128, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) { 0, 0, 128, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .offset = { 0, 0, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * RGB full-range to RGB limited-range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * R_lim = 0.8588 * R_full + 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * G_lim = 0.8588 * G_full + 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * B_lim = 0.8588 * B_full + 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static const struct ipu_ic_csc_params rgbf2rgbl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) { 220, 0, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) { 0, 220, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) { 0, 0, 220, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .offset = { 64, 64, 64, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * RGB limited-range to RGB full-range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * R_full = 1.1644 * (R_lim - 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * G_full = 1.1644 * (G_lim - 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * B_full = 1.1644 * (B_lim - 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static const struct ipu_ic_csc_params rgbl2rgbf = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) { 149, 0, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) { 0, 149, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) { 0, 0, 149, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .offset = { -37, -37, -37, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * YUV full-range to YUV limited-range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * Y_lim = 0.8588 * Y_full + 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * Cb_lim = 0.8784 * (Cb_full - 128) + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * Cr_lim = 0.8784 * (Cr_full - 128) + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static const struct ipu_ic_csc_params yuvf2yuvl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) { 220, 0, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) { 0, 225, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) { 0, 0, 225, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .offset = { 64, 62, 62, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .sat = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * YUV limited-range to YUV full-range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * Y_full = 1.1644 * (Y_lim - 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * Cb_full = 1.1384 * (Cb_lim - 128) + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * Cr_full = 1.1384 * (Cr_lim - 128) + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static const struct ipu_ic_csc_params yuvl2yuvf = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) { 149, 0, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) { 0, 146, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) { 0, 0, 146, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .offset = { -37, -35, -35, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static const struct ipu_ic_csc_params *rgb2rgb[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) &identity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) &rgbf2rgbl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) &rgbl2rgbf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) &identity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static const struct ipu_ic_csc_params *yuv2yuv[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) &identity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) &yuvf2yuvl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) &yuvl2yuvf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) &identity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * BT.601 RGB full-range to YUV full-range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * Y = .2990 * R + .5870 * G + .1140 * B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * U = -.1687 * R - .3313 * G + .5000 * B + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * V = .5000 * R - .4187 * G - .0813 * B + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static const struct ipu_ic_csc_params rgbf2yuvf_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) { 77, 150, 29, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) { -43, -85, 128, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) { 128, -107, -21, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .offset = { 0, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /* BT.601 RGB full-range to YUV limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static const struct ipu_ic_csc_params rgbf2yuvl_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) { 66, 129, 25, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) { -38, -74, 112, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) { 112, -94, -18, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .offset = { 64, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .sat = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /* BT.601 RGB limited-range to YUV full-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) static const struct ipu_ic_csc_params rgbl2yuvf_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) { 89, 175, 34, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) { -50, -99, 149, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) { 149, -125, -24, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) .offset = { -75, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* BT.601 RGB limited-range to YUV limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static const struct ipu_ic_csc_params rgbl2yuvl_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) { 77, 150, 29, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) { -44, -87, 131, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) { 131, -110, -21, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .offset = { 0, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .sat = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * BT.601 YUV full-range to RGB full-range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) * R = 1. * Y + 0 * (Cb - 128) + 1.4020 * (Cr - 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) * G = 1. * Y - .3441 * (Cb - 128) - .7141 * (Cr - 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * B = 1. * Y + 1.7720 * (Cb - 128) + 0 * (Cr - 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * equivalently (factoring out the offsets):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * R = 1. * Y + 0 * Cb + 1.4020 * Cr - 179.456
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * G = 1. * Y - .3441 * Cb - .7141 * Cr + 135.450
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * B = 1. * Y + 1.7720 * Cb + 0 * Cr - 226.816
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static const struct ipu_ic_csc_params yuvf2rgbf_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) { 128, 0, 179, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) { 128, -44, -91, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) { 128, 227, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .offset = { -359, 271, -454, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) /* BT.601 YUV full-range to RGB limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static const struct ipu_ic_csc_params yuvf2rgbl_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) { 110, 0, 154, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) { 110, -38, -78, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) { 110, 195, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .offset = { -276, 265, -358, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /* BT.601 YUV limited-range to RGB full-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) static const struct ipu_ic_csc_params yuvl2rgbf_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) { 75, 0, 102, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) { 75, -25, -52, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) { 75, 129, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .offset = { -223, 136, -277, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) .scale = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* BT.601 YUV limited-range to RGB limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) static const struct ipu_ic_csc_params yuvl2rgbl_601 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) { 128, 0, 175, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) { 128, -43, -89, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) { 128, 222, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .offset = { -351, 265, -443, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static const struct ipu_ic_csc_params *rgb2yuv_601[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) &rgbf2yuvf_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) &rgbf2yuvl_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) &rgbl2yuvf_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) &rgbl2yuvl_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static const struct ipu_ic_csc_params *yuv2rgb_601[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) &yuvf2rgbf_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) &yuvf2rgbl_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) &yuvl2rgbf_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) &yuvl2rgbl_601,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * REC.709 encoding from RGB full range to YUV full range:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * Y = .2126 * R + .7152 * G + .0722 * B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) * U = -.1146 * R - .3854 * G + .5000 * B + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) * V = .5000 * R - .4542 * G - .0458 * B + 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static const struct ipu_ic_csc_params rgbf2yuvf_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) { 54, 183, 19 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) { -29, -99, 128 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) { 128, -116, -12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) .offset = { 0, 512, 512 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) /* Rec.709 RGB full-range to YUV limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) static const struct ipu_ic_csc_params rgbf2yuvl_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) { 47, 157, 16, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) { -26, -87, 112, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) { 112, -102, -10, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) .offset = { 64, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) .sat = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) /* Rec.709 RGB limited-range to YUV full-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static const struct ipu_ic_csc_params rgbl2yuvf_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) { 63, 213, 22, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) { -34, -115, 149, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) { 149, -135, -14, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) .offset = { -75, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /* Rec.709 RGB limited-range to YUV limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static const struct ipu_ic_csc_params rgbl2yuvl_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) { 54, 183, 18, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) { -30, -101, 131, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) { 131, -119, -12, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) .offset = { 0, 512, 512, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) .scale = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) .sat = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * Inverse REC.709 encoding from YUV full range to RGB full range:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) * R = 1. * Y + 0 * (Cb - 128) + 1.5748 * (Cr - 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * G = 1. * Y - .1873 * (Cb - 128) - .4681 * (Cr - 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * B = 1. * Y + 1.8556 * (Cb - 128) + 0 * (Cr - 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * equivalently (factoring out the offsets):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * R = 1. * Y + 0 * Cb + 1.5748 * Cr - 201.574
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * G = 1. * Y - .1873 * Cb - .4681 * Cr + 83.891
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * B = 1. * Y + 1.8556 * Cb + 0 * Cr - 237.517
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) static const struct ipu_ic_csc_params yuvf2rgbf_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) { 128, 0, 202 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) { 128, -24, -60 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) { 128, 238, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) .offset = { -403, 168, -475 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) /* Rec.709 YUV full-range to RGB limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static const struct ipu_ic_csc_params yuvf2rgbl_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) { 110, 0, 173, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) { 110, -21, -51, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) { 110, 204, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) .offset = { -314, 176, -376, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) /* Rec.709 YUV limited-range to RGB full-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) static const struct ipu_ic_csc_params yuvl2rgbf_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) { 75, 0, 115, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) { 75, -14, -34, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) { 75, 135, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) .offset = { -248, 77, -289, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) .scale = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) /* Rec.709 YUV limited-range to RGB limited-range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) static const struct ipu_ic_csc_params yuvl2rgbl_709 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) .coeff = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) { 128, 0, 197, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) { 128, -23, -59, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) { 128, 232, 0, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) .offset = { -394, 164, -464, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) .scale = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) static const struct ipu_ic_csc_params *rgb2yuv_709[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) &rgbf2yuvf_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) &rgbf2yuvl_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) &rgbl2yuvf_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) &rgbl2yuvl_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static const struct ipu_ic_csc_params *yuv2rgb_709[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) &yuvf2rgbf_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) &yuvf2rgbl_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) &yuvl2rgbf_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) &yuvl2rgbl_709,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) static int calc_csc_coeffs(struct ipu_ic_csc *csc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) const struct ipu_ic_csc_params **params_tbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) int tbl_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) tbl_idx = (QUANT_MAP(csc->in_cs.quant) << 1) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) QUANT_MAP(csc->out_cs.quant);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) if (csc->in_cs.cs == csc->out_cs.cs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) csc->params = (csc->in_cs.cs == IPUV3_COLORSPACE_YUV) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) *yuv2yuv[tbl_idx] : *rgb2rgb[tbl_idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) /* YUV <-> RGB encoding is required */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) switch (csc->out_cs.enc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) case V4L2_YCBCR_ENC_601:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) params_tbl = (csc->in_cs.cs == IPUV3_COLORSPACE_YUV) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) yuv2rgb_601 : rgb2yuv_601;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) case V4L2_YCBCR_ENC_709:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) params_tbl = (csc->in_cs.cs == IPUV3_COLORSPACE_YUV) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) yuv2rgb_709 : rgb2yuv_709;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) return -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) csc->params = *params_tbl[tbl_idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) int __ipu_ic_calc_csc(struct ipu_ic_csc *csc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return calc_csc_coeffs(csc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) EXPORT_SYMBOL_GPL(__ipu_ic_calc_csc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) int ipu_ic_calc_csc(struct ipu_ic_csc *csc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) enum v4l2_ycbcr_encoding in_enc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) enum v4l2_quantization in_quant,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) enum ipu_color_space in_cs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) enum v4l2_ycbcr_encoding out_enc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) enum v4l2_quantization out_quant,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) enum ipu_color_space out_cs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) ipu_ic_fill_colorspace(&csc->in_cs, in_enc, in_quant, in_cs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) ipu_ic_fill_colorspace(&csc->out_cs, out_enc, out_quant, out_cs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return __ipu_ic_calc_csc(csc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) EXPORT_SYMBOL_GPL(ipu_ic_calc_csc);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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