libcamera/vivid.git - libcamera pipeline handler for VIVID

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author	Naushir Patuck <naush@raspberrypi.com>	2022-10-06 14:17:36 +0100
committer	Laurent Pinchart <laurent.pinchart@ideasonboard.com>	2022-10-18 03:09:38 +0300
commit	c513522f3f5b9e3cb091cf7dfd249376b4171bfe (patch)
tree	d0652bfc23075ecd15b131b53d3e152fcb1cf0df /meson_options.txt
parent	e5fc0132f80d644757373ab0e0e3db00fe6ee010 (diff)

ipa: raspberrypi: Add minimum and maximum line length fields to CameraMode

Add fields for minimum and maximum line length duration to the CameraMode structure. This replaces the existing lineLength field. Any use of the existing lineLength field is replaced by the new minLineLength field, as logically we always want to use the fastest sensor readout by default. As a drive-by cosmetic change, split all fields in the CameraMode structure into separate lines. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Diffstat (limited to 'meson_options.txt')

0 files changed, 0 insertions, 0 deletions

/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2019, Google Inc. * * ipa_manager.cpp - Image Processing Algorithm module manager */ #include "ipa_manager.h" #include <algorithm> #include <dirent.h> #include <string.h> #include <sys/types.h> #include "ipa_context_wrapper.h" #include "ipa_module.h" #include "ipa_proxy.h" #include "log.h" #include "pipeline_handler.h" #include "utils.h" /** * \file ipa_manager.h * \brief Image Processing Algorithm module manager */ namespace libcamera { LOG_DEFINE_CATEGORY(IPAManager) /** * \class IPAManager * \brief Manager for IPA modules * * The IPA module manager discovers IPA modules from disk, queries and loads * them, and creates IPA contexts. It supports isolation of the modules in a * separate process with IPC communication and offers a unified IPAInterface * view of the IPA contexts to pipeline handlers regardless of whether the * modules are isolated or loaded in the same process. * * Module isolation is based on the module licence. Open-source modules are * loaded without isolation, while closed-source module are forcefully isolated. * The isolation mechanism ensures that no code from a closed-source module is * ever run in the libcamera process. * * To create an IPA context, pipeline handlers call the IPAManager::ipaCreate() * method. For a directly loaded module, the manager calls the module's * ipaCreate() function directly and wraps the returned context in an * IPAContextWrapper that exposes an IPAInterface. * * ~~~~ * +---------------+ * | Pipeline | * | Handler | * +---------------+ * | * v * +---------------+ +---------------+ * | IPA | | Open Source | * | Interface | | IPA Module | * | - - - - - - - | | - - - - - - - | * | IPA Context | ipa_context_ops | ipa_context | * | Wrapper | ----------------> | | * +---------------+ +---------------+ * ~~~~ * * For an isolated module, the manager instantiates an IPAProxy which spawns a * new process for an IPA proxy worker. The worker loads the IPA module and * creates the IPA context. The IPAProxy alse exposes an IPAInterface. * * ~~~~ * +---------------+ +---------------+ * | Pipeline | | Closed Source | * | Handler | | IPA Module | * +---------------+ | - - - - - - - | * | | ipa_context | * v | | * +---------------+ +---------------+ * | IPA | ipa_context_ops ^ * | Interface | | * | - - - - - - - | +---------------+ * | IPA Proxy | operations | IPA Proxy | * | | ----------------> | Worker | * +---------------+ over IPC +---------------+ * ~~~~ * * The IPAInterface implemented by the IPAContextWrapper or IPAProxy is * returned to the pipeline handler, and all interactions with the IPA context * go the same interface regardless of process isolation. * * In all cases the data passed to the IPAInterface methods is serialized to * Plain Old Data, either for the purpose of passing it to the IPA context * plain C API, or to transmit the data to the isolated process through IPC. */ IPAManager::IPAManager() { unsigned int ipaCount = 0; int ret; ret = addDir(IPA_MODULE_DIR); if (ret > 0) ipaCount += ret; const char *modulePaths = utils::secure_getenv("LIBCAMERA_IPA_MODULE_PATH"); if (!modulePaths) { if (!ipaCount) LOG(IPAManager, Warning) << "No IPA found in '" IPA_MODULE_DIR "'"; return; } const char *paths = modulePaths; while (1) { const char *delim = strchrnul(paths, ':'); size_t count = delim - paths; if (count) { std::string path(paths, count); ret = addDir(path.c_str()); if (ret > 0) ipaCount += ret; } if (*delim == '\0') break; paths += count + 1; } if (!ipaCount) LOG(IPAManager, Warning) << "No IPA found in '" IPA_MODULE_DIR "' and '" << modulePaths << "'"; } IPAManager::~IPAManager() { for (IPAModule *module : modules_) delete module; } /** * \brief Retrieve the IPA manager instance * * The IPAManager is a singleton and can't be constructed manually. This * function shall instead be used to retrieve the single global instance of the * manager. * * \return The IPA manager instance */ IPAManager *IPAManager::instance() { static IPAManager ipaManager; return &ipaManager; } /** * \brief Load IPA modules from a directory * \param[in] libDir directory to search for IPA modules * * This method tries to create an IPAModule instance for every shared object * found in \a libDir, and skips invalid IPA modules. * * \return Number of modules loaded by this call, or a negative error code * otherwise */ int IPAManager::addDir(const char *libDir) { struct dirent *ent; DIR *dir; dir = opendir(libDir); if (!dir) return -errno; std::vector<std::string> paths; while ((ent = readdir(dir)) != nullptr) { int offset = strlen(ent->d_name) - 3; if (offset < 0) continue; if (strcmp(&ent->d_name[offset], ".so")) continue; paths.push_back(std::string(libDir) + "/" + ent->d_name); } closedir(dir); /* Ensure a stable ordering of modules. */ std::sort(paths.begin(), paths.end()); unsigned int count = 0; for (const std::string &path : paths) { IPAModule *ipaModule = new IPAModule(path); if (!ipaModule->isValid()) { delete ipaModule; continue; } LOG(IPAManager, Debug) << "Loaded IPA module '" << path << "'"; modules_.push_back(ipaModule); count++; } return count; } /** * \brief Create an IPA interface that matches a given pipeline handler * \param[in] pipe The pipeline handler that wants a matching IPA interface * \param[in] minVersion Minimum acceptable version of IPA module * \param[in] maxVersion Maximum acceptable version of IPA module * * \return A newly created IPA interface, or nullptr if no matching * IPA module is found or if the IPA interface fails to initialize */ std::unique_ptr<IPAInterface> IPAManager::createIPA(PipelineHandler *pipe, uint32_t maxVersion, uint32_t minVersion) { IPAModule *m = nullptr; for (IPAModule *module : modules_) { if (module->match(pipe, minVersion, maxVersion)) { m = module; break; } } if (!m) return nullptr; if (!m->isOpenSource()) { IPAProxyFactory *pf = nullptr; std::vector<IPAProxyFactory *> &factories = IPAProxyFactory::factories(); for (IPAProxyFactory *factory : factories) { /* TODO: Better matching */ if (!strcmp(factory->name().c_str(), "IPAProxyLinux")) { pf = factory; break; } } if (!pf) { LOG(IPAManager, Error) << "Failed to get proxy factory"; return nullptr; } std::unique_ptr<IPAProxy> proxy = pf->create(m); if (!proxy->isValid()) { LOG(IPAManager, Error) << "Failed to load proxy"; return nullptr; } return proxy; } if (!m->load()) return nullptr; struct ipa_context *ctx = m->createContext(); if (!ctx) return nullptr; return utils::make_unique<IPAContextWrapper>(ctx); } } /* namespace libcamera */


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