# SPDX-License-Identifier: GPL-2.0-or-later # # Copyright (C) 2022, Paul Elder # # raspberrypi_parser.py - Parser for Raspberry Pi config file format from .parser import Parser import json import numbers import libtuning.utils as utils class RaspberryPiParser(Parser): def __init__(self): super().__init__() # The string in the 'disable' and 'plot' lists are formatted as # 'rpi.{module_name}'. # @brief Enumerate, as a module, @a listt if its value exists in @a dictt # and it is the name of a valid module in @a modules def _enumerate_rpi_modules(self, listt, dictt, modules): for x in listt: name = x.replace('rpi.', '') if name not in dictt: continue module = utils.get_module_by_typename(modules, name) if module is not None: yield module def _valid_macbeth_option(self, value): if not isinstance(value, dict): return False if list(value.keys()) != ['small', 'show']: return False for val in value.values(): if not isinstance(val, numbers.Number): return False return True def parse(self, config_file: str, modules: list) -> (dict, list): with open(config_file, 'r') as config_json: config = json.load(config_json) disable = [] for module in self._enumerate_rpi_modules(config['disable'], config, modules): disable.append(module) # Remove the disabled module's config too config.pop(module.name) config.pop('disable') # The raspberrypi config format has 'plot' map to a list of module # names which should be plotted. libtuning has each module contain the # plot information in itself so do this conversion. for module in self._enumerate_rpi_modules(config['plot'], config, modules): # It's fine to set the value of a potentially disabled module, as # the object still exists at this point module.appendValue('debug', 'plot') config.pop('plot') # Convert the keys from module name to module instance new_config = {} for module_name in config: module = utils.get_module_by_type_name(modules, module_name) if module is not None: new_config[module] = config[module_name] new_config['general'] = {} if 'blacklevel' in config: if not isinstance(config['blacklevel'], numbers.Number): raise TypeError('Config "blacklevel" must be a number') # Raspberry Pi's ctt config has magic blacklevel value -1 to mean # "get it from the image metadata". Since we already do that in # Image, don't save it to the config here. if config['blacklevel'] >= 0: new_config['general']['blacklevel'] = config['blacklevel'] if 'macbeth' in config: if not self._valid_macbeth_option(config['macbeth']): raise TypeError('Config "macbeth" must be a dict: {"small": number, "show": number}') new_config['general']['macbeth'] = config['macbeth'] else: new_config['general']['macbeth'] = {'small': 0, 'show': 0} return new_config, disable ba670163c8'>treecommitdiff
path: root/src/libcamera/ipa_module.cpp
blob: c9ff7de30e215b858dcebb47bc98cbc67a698e59 (plain) 
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * ipa_module.cpp - Image Processing Algorithm module
 */

#include "libcamera/internal/ipa_module.h"

#include <algorithm>
#include <array>
#include <ctype.h>
#include <dlfcn.h>
#include <elf.h>
#include <errno.h>
#include <fcntl.h>
#include <link.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

#include <libcamera/base/file.h>
#include <libcamera/base/log.h>
#include <libcamera/base/span.h>
#include <libcamera/base/utils.h>

#include "libcamera/internal/pipeline_handler.h"

/**
 * \file ipa_module.h
 * \brief Image Processing Algorithm module
 */

/**
 * \file ipa_module_info.h
 * \brief Image Processing Algorithm module information
 */

namespace libcamera {

LOG_DEFINE_CATEGORY(IPAModule)

namespace {

template<typename T>
typename std::remove_extent_t<T> *elfPointer(Span<const uint8_t> elf,
					     off_t offset, size_t objSize)
{
	size_t size = offset + objSize;
	if (size > elf.size() || size < objSize)
		return nullptr;

	return reinterpret_cast<typename std::remove_extent_t<T> *>
		(reinterpret_cast<const char *>(elf.data()) + offset);
}

template<typename T>
typename std::remove_extent_t<T> *elfPointer(Span<const uint8_t> elf,
					     off_t offset)
{
	return elfPointer<T>(elf, offset, sizeof(T));
}

int elfVerifyIdent(Span<const uint8_t> elf)
{
	const char *e_ident = elfPointer<const char[EI_NIDENT]>(elf, 0);
	if (!e_ident)
		return -ENOEXEC;

	if (e_ident[EI_MAG0] != ELFMAG0 ||
	    e_ident[EI_MAG1] != ELFMAG1 ||
	    e_ident[EI_MAG2] != ELFMAG2 ||
	    e_ident[EI_MAG3] != ELFMAG3 ||
	    e_ident[EI_VERSION] != EV_CURRENT)
		return -ENOEXEC;

	int bitClass = sizeof(unsigned long) == 4 ? ELFCLASS32 : ELFCLASS64;