53d3f4152a
IPA modules may require configuration files, which may be stored in different locations in the file system. To standardize file locations between all IPAs and pipeline handlers, provide a helper function to locate a configuration file by searching in the following directories: - All directories specified in the LIBCAMERA_IPA_CONFIG_PATH environment variable ; or - In the source tree if libcamera is not installed ; otherwise - In standard system locations (etc and share directories). When stored in the source tree, configuration files shall be located in a 'data' subdirectory of their respective IPA directory. More locations, or extensions to the mechanism, may be implemented later. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
98 lines
2.1 KiB
C++
98 lines
2.1 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* ipa_proxy_linux.cpp - Default Image Processing Algorithm proxy for Linux
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*/
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#include <vector>
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#include <ipa/ipa_interface.h>
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#include <ipa/ipa_module_info.h>
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#include "ipa_module.h"
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#include "ipa_proxy.h"
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#include "ipc_unixsocket.h"
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#include "log.h"
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#include "process.h"
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namespace libcamera {
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LOG_DECLARE_CATEGORY(IPAProxy)
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class IPAProxyLinux : public IPAProxy
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{
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public:
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IPAProxyLinux(IPAModule *ipam);
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~IPAProxyLinux();
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int init() override { return 0; }
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int start() override { return 0; }
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void stop() override {}
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void configure(const std::map<unsigned int, IPAStream> &streamConfig,
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const std::map<unsigned int, const ControlInfoMap &> &entityControls) override {}
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void mapBuffers(const std::vector<IPABuffer> &buffers) override {}
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void unmapBuffers(const std::vector<unsigned int> &ids) override {}
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void processEvent(const IPAOperationData &event) override {}
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private:
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void readyRead(IPCUnixSocket *ipc);
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Process *proc_;
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IPCUnixSocket *socket_;
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};
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IPAProxyLinux::IPAProxyLinux(IPAModule *ipam)
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: IPAProxy(ipam), proc_(nullptr), socket_(nullptr)
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{
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LOG(IPAProxy, Debug)
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<< "initializing dummy proxy: loading IPA from "
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<< ipam->path();
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std::vector<int> fds;
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std::vector<std::string> args;
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args.push_back(ipam->path());
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const std::string path = resolvePath("ipa_proxy_linux");
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if (path.empty()) {
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LOG(IPAProxy, Error)
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<< "Failed to get proxy worker path";
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return;
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}
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socket_ = new IPCUnixSocket();
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int fd = socket_->create();
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if (fd < 0) {
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LOG(IPAProxy, Error)
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<< "Failed to create socket";
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return;
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}
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socket_->readyRead.connect(this, &IPAProxyLinux::readyRead);
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args.push_back(std::to_string(fd));
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fds.push_back(fd);
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proc_ = new Process();
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int ret = proc_->start(path, args, fds);
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if (ret) {
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LOG(IPAProxy, Error)
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<< "Failed to start proxy worker process";
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return;
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}
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valid_ = true;
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}
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IPAProxyLinux::~IPAProxyLinux()
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{
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delete proc_;
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delete socket_;
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}
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void IPAProxyLinux::readyRead(IPCUnixSocket *ipc)
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{
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}
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REGISTER_IPA_PROXY(IPAProxyLinux)
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} /* namespace libcamera */
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