index : libcamera/vivid.git	pobrn/rebase vivid
	libcamera pipeline handler for VIVID	git repository hosting on libcamera.org

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path: root/src/ipa/rkisp1

Mode	Name	Size
d---------	algorithms	838	logplain
d---------	data	357	logplain
-rw-r--r--	ipa_context.cpp	13645	logplain
-rw-r--r--	ipa_context.h	3095	logplain
-rw-r--r--	meson.build	916	logplain
-rw-r--r--	module.h	500	logplain
-rw-r--r--	rkisp1.cpp	13982	logplain
-rw-r--r--	utils.cpp	1285	logplain
-rw-r--r--	utils.h	1944	logplain

generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 03:21:51 +0000

#!/usr/bin/python3
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2022, Ideas on Board Oy
#
# Generate color space conversion table coefficients with configurable
# fixed-point precision

import argparse
import enum
import sys


encodings = {
    'rec601': [
        [  0.299,          0.587,          0.114         ],
        [ -0.299 / 1.772, -0.587 / 1.772,  0.886 / 1.772 ],
        [  0.701 / 1.402, -0.587 / 1.402, -0.114 / 1.402 ]
    ],
    'rec709': [
        [  0.2126,           0.7152,           0.0722          ],
        [ -0.2126 / 1.8556, -0.7152 / 1.8556,  0.9278 / 1.8556 ],
        [  0.7874 / 1.5748, -0.7152 / 1.5748, -0.0722 / 1.5748 ]
    ],
    'rec2020': [
        [  0.2627,           0.6780,           0.0593          ],
        [ -0.2627 / 1.8814, -0.6780 / 1.8814,  0.9407 / 1.8814 ],
        [  0.7373 / 1.4746, -0.6780 / 1.4746, -0.0593 / 1.4746 ],
    ],
    'smpte240m': [
        [  0.2122,           0.7013,           0.0865          ],
        [ -0.2122 / 1.8270, -0.7013 / 1.8270,  0.9135 / 1.8270 ],
        [  0.7878 / 1.5756, -0.7013 / 1.5756, -0.0865 / 1.5756 ],
    ],
}


class Precision(object):
    def __init__(self, precision):
        if precision[0].upper() != 'Q':
            raise RuntimeError(f'Invalid precision `{precision}`')
        prec = precision[1:].split('.')
        if len(prec) != 2:
            raise RuntimeError(f'Invalid precision `{precision}`')

        self.__prec = [int(v) for v in prec]

    @property
    def integer(self):
        return self.__prec[0]

    @property
    def fractional(self):
        return self.__prec[1]

    @property
    def total(self):
        # Add 1 for the sign bit
        return self.__prec[0] + self.__prec[1] + 1