hyperion.ng/libsrc/python/PythonInit.cpp
2021-10-05 21:22:19 +00:00

75 lines
1.9 KiB
C++

// utils
#include <utils/Logger.h>
#include <python/PythonInit.h>
#include <python/PythonUtils.h>
// qt include
#include <QCoreApplication>
#include <QDir>
// modules to init
#include <effectengine/EffectModule.h>
// Required to determine the cmake options
#include <HyperionConfig.h>
#ifdef _WIN32
#include <stdexcept>
#endif
#define STRINGIFY2(x) #x
#define STRINGIFY(x) STRINGIFY2(x)
PythonInit::PythonInit()
{
// register modules
EffectModule::registerHyperionExtensionModule();
#if defined(ENABLE_DEPLOY_DEPENDENCIES)
// Set Program name
Py_SetProgramName(L"Hyperion");
// set Python module path when exists
QString py_patch = QDir::cleanPath(qApp->applicationDirPath() + "/../lib/python" + STRINGIFY(PYTHON_VERSION_MAJOR) + "." + STRINGIFY(PYTHON_VERSION_MINOR));
QString py_file = QDir::cleanPath(qApp->applicationDirPath() + "/python" + STRINGIFY(PYTHON_VERSION_MAJOR) + STRINGIFY(PYTHON_VERSION_MINOR) + ".zip");
if (QFile(py_file).exists() || QDir(py_patch).exists())
{
Py_NoSiteFlag++;
if (QFile(py_file).exists())
{
Py_SetPythonHome(Py_DecodeLocale(py_file.toLatin1().data(), nullptr));
Py_SetPath(Py_DecodeLocale(py_file.toLatin1().data(), nullptr));
}
else if (QDir(py_patch).exists())
{
Py_SetPythonHome(Py_DecodeLocale(py_patch.toLatin1().data(), nullptr));
Py_SetPath(Py_DecodeLocale(py_patch.toLatin1().data(), nullptr));
}
}
#endif
// init Python
Debug(Logger::getInstance("DAEMON"), "Initializing Python interpreter");
Py_InitializeEx(0);
if ( !Py_IsInitialized() )
{
throw std::runtime_error("Initializing Python failed!");
}
#if (PY_VERSION_HEX < 0x03090000)
// PyEval_InitThreads became deprecated in Python 3.9 and will be removed in Python 3.11
PyEval_InitThreads(); // Create the GIL
#endif
mainThreadState = PyEval_SaveThread();
}
PythonInit::~PythonInit()
{
Debug(Logger::getInstance("DAEMON"), "Cleaning up Python interpreter");
PyEval_RestoreThread(mainThreadState);
Py_Finalize();
}