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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* ipa_proxy_linux.cpp - Default Image Processing Algorithm proxy for Linux
*/
#include <vector>
#include <libcamera/ipa/ipa_interface.h>
#include <libcamera/ipa/ipa_module_info.h>
#include "libcamera/internal/ipa_module.h"
#include "libcamera/internal/ipa_proxy.h"
#include "libcamera/internal/ipc_unixsocket.h"
#include "libcamera/internal/log.h"
#include "libcamera/internal/process.h"
namespace libcamera {
LOG_DECLARE_CATEGORY(IPAProxy)
class IPAProxyLinux : public IPAProxy
{
public:
IPAProxyLinux(IPAModule *ipam);
~IPAProxyLinux();
int init([[maybe_unused]] const IPASettings &settings) override
{
return 0;
}
int start([[maybe_unused]] const IPAOperationData &data,
[[maybe_unused]] IPAOperationData *result) override { return 0; }
void stop() override {}
void configure([[maybe_unused]] const CameraSensorInfo &sensorInfo,
[[maybe_unused]] const std::map<unsigned int, IPAStream> &streamConfig,
[[maybe_unused]] const std::map<unsigned int, const ControlInfoMap &> &entityControls,
[[maybe_unused]] const IPAOperationData &ipaConfig,
[[maybe_unused]] IPAOperationData *result) override {}
void mapBuffers([[maybe_unused]] const std::vector<IPABuffer> &buffers) override {}
void unmapBuffers([[maybe_unused]] const std::vector<unsigned int> &ids) override {}
void processEvent([[maybe_unused]] const IPAOperationData &event) override {}
private:
void readyRead(IPCUnixSocket *ipc);
Process *proc_;
IPCUnixSocket *socket_;
};
IPAProxyLinux::IPAProxyLinux(IPAModule *ipam)
: IPAProxy(ipam), proc_(nullptr), socket_(nullptr)
{
LOG(IPAProxy, Debug)
<< "initializing dummy proxy: loading IPA from "
<< ipam->path();
std::vector<int> fds;
std::vector<std::string> args;
args.push_back(ipam->path());
const std::string path = resolvePath("ipa_proxy_linux");
if (path.empty()) {
LOG(IPAProxy, Error)
<< "Failed to get proxy worker path";
return;
}
socket_ = new IPCUnixSocket();
int fd = socket_->create();
if (fd < 0) {
LOG(IPAProxy, Error)
<< "Failed to create socket";
return;
}
socket_->readyRead.connect(this, &IPAProxyLinux::readyRead);
args.push_back(std::to_string(fd));
fds.push_back(fd);
proc_ = new Process();
int ret = proc_->start(path, args, fds);
if (ret) {
LOG(IPAProxy, Error)
<< "Failed to start proxy worker process";
return;
}
valid_ = true;
}
IPAProxyLinux::~IPAProxyLinux()
{
delete proc_;
delete socket_;
}
void IPAProxyLinux::readyRead([[maybe_unused]] IPCUnixSocket *ipc)
{
}
REGISTER_IPA_PROXY(IPAProxyLinux)
} /* namespace libcamera */
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