| 39 | std::unique_ptr<Scripting::Context> Scripting::sDefaultContext; |
| 40 | |
| 41 | void Scripting::start() |
| 42 | { |
| 43 | if (!sRunning) |
| 44 | { |
| 45 | sRunning = true; |
| 46 | |
| 47 | #ifdef FALCOR_PYTHON_EXECUTABLE |
| 48 | #if FALCOR_WINDOWS |
| 49 | static std::filesystem::path pythonHome{std::filesystem::path{FALCOR_PYTHON_EXECUTABLE}.parent_path()}; |
| 50 | #else |
| 51 | static std::filesystem::path pythonHome{std::filesystem::path{FALCOR_PYTHON_EXECUTABLE}.parent_path().parent_path()}; |
| 52 | #endif |
| 53 | #else |
| 54 | static std::filesystem::path pythonHome{getRuntimeDirectory() / "pythondist"}; |
| 55 | #endif |
| 56 | Py_SetPythonHome(pythonHome.wstring().c_str()); |
| 57 | |
| 58 | try |
| 59 | { |
| 60 | pybind11::initialize_interpreter(); |
| 61 | sDefaultContext.reset(new Context()); |
| 62 | // Extend python search path with the directory containing the falcor python module. |
| 63 | std::string pythonPath = (getRuntimeDirectory() / "python").generic_string(); |
| 64 | Scripting::runScript(fmt::format("import sys; sys.path.append(\"{}\")\n", pythonPath)); |
| 65 | // Set an environment variable to inform the falcor module that it's being loaded from an embedded interpreter. |
| 66 | Scripting::runScript("import os; os.environ[\"FALCOR_EMBEDDED_PYTHON\"] = \"1\""); |
| 67 | |
| 68 | // Import falcor into default scripting context. |
| 69 | Scripting::runScript("from falcor import *"); |
| 70 | } |
| 71 | catch (const std::exception& e) |
| 72 | { |
| 73 | FALCOR_THROW("Failed to start the Python interpreter: {}", e.what()); |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | void Scripting::shutdown() |
| 79 | { |