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239 lines (197 loc) · 7.11 KB
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/**
* =============================================================================
* Source Python
* Copyright (C) 2012 Source Python Development Team. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the Source Python Team gives you permission
* to link the code of this program (as well as its derivative works) to
* "Half-Life 2," the "Source Engine," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, the Source.Python
* Development Team grants this exception to all derivative works.
*
* Special thanks to Mark Chandler <mark@moddb.com>!
* Sources:
* http://code.google.com/p/sourcesdkpython/source/browse/trunk/src/game/server/py/ge_pymanager.cpp
*/
//---------------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------------
#include "sp_python.h"
#include "sp_main.h"
#include "eiface.h"
#include "utilities/shared_utils.h"
#include "export_main.h"
#include "modules/entities/entities_entity_wrap.h"
BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(CBaseEntity)
//---------------------------------------------------------------------------------
// Interfaces we're going to use.
//---------------------------------------------------------------------------------
extern IVEngineServer* engine;
//---------------------------------------------------------------------------------
// Singleton
//---------------------------------------------------------------------------------
CPythonManager g_PythonManager;
//---------------------------------------------------------------------------------
// Forward declarations.
//---------------------------------------------------------------------------------
void InitConverters();
//---------------------------------------------------------------------------------
// Returns the path to the ../source-python/addon/ directory.
//---------------------------------------------------------------------------------
const char *GetSourcePythonDir()
{
char szGameDir[MAX_GAME_PATH];
engine->GetGameDir(szGameDir, MAX_GAME_PATH);
GenerateSymlink(szGameDir);
char szAddonDir[MAX_GAME_PATH];
V_snprintf(szAddonDir, MAX_GAME_PATH, "%s%s", szGameDir, "/addons/source-python");
return szAddonDir;
}
//---------------------------------------------------------------------------------
// Adds a path to sys.path (relative to GetSourcePythonDir()).
//---------------------------------------------------------------------------------
void AddToSysPath( const char* path )
{
char szFolderPath[MAX_GAME_PATH];
V_snprintf(szFolderPath, MAX_GAME_PATH, "%s%s", GetSourcePythonDir(), path);
V_FixSlashes(szFolderPath);
DevMsg(1, MSG_PREFIX "Adding %s to path\n", szFolderPath);
std::string szCommandString = "sys.path.append(r\"" + std::string(szFolderPath) + "\")";
PyRun_SimpleString(szCommandString.c_str());
}
//---------------------------------------------------------------------------------
// Initializes python.
//---------------------------------------------------------------------------------
bool CPythonManager::Initialize( void )
{
// Construct a path to the python engine directory.
char szPythonHome[MAX_GAME_PATH];
V_snprintf(szPythonHome, MAX_GAME_PATH, "%s/Python3", GetSourcePythonDir());
V_FixSlashes(szPythonHome);
DevMsg(1, MSG_PREFIX "Python home path set to %s\n", szPythonHome);
// Convert to wide char for python.
wchar_t wszPythonHome[1024];
V_strtowcs(szPythonHome, -1, wszPythonHome, 1024);
// Set that as the python home directory.
Py_SetPythonHome(wszPythonHome);
Py_SetProgramName(wszPythonHome);
Py_SetPath(wszPythonHome);
// Initialize python and its namespaces.
Py_Initialize();
// Print some information
DevMsg(1, MSG_PREFIX "Python version %s initialized!\n", Py_GetVersion());
// Make sure sys is imported.
PyRun_SimpleString("import sys");
// Add the Python API path.
AddToSysPath("/packages/source-python");
// Add operating system specific paths.
#if defined(WIN32)
AddToSysPath("/Python3/plat-win");
#else
AddToSysPath("/Python3/plat-linux");
// We've got a bunch of linux shared objects here we need to load.
AddToSysPath("/Python3/lib-dynload");
#endif
// Site packages for any extra packages...
AddToSysPath("/packages/site-packages");
// Add the custom packages path.
AddToSysPath("/packages/custom");
// And of course, the plugins directory for script imports.
AddToSysPath("/plugins");
// Initialize all converters
InitConverters();
// Initialize all submodules
modulsp_init();
// Import the main module file.
DevMsg(1, MSG_PREFIX "Importing main module..\n");
try {
python::import("__init__").attr("load")();
}
catch( ... ) {
PyErr_Print();
PyErr_Clear();
Msg(MSG_PREFIX "Failed to load.\n");
return false;
}
Msg(MSG_PREFIX "Loaded successfully.\n");
return true;
}
//---------------------------------------------------------------------------------
// Shuts down python.
//---------------------------------------------------------------------------------
bool CPythonManager::Shutdown( void )
{
try {
python::import("__init__").attr("unload")();
}
catch( ... ) {
PyErr_Print();
PyErr_Clear();
Msg(MSG_PREFIX "Failed to unload.\n");
return false;
}
return true;
}
//---------------------------------------------------------------------------------
// Converters
//---------------------------------------------------------------------------------
struct string_t_to_python
{
string_t_to_python()
{
to_python_converter< string_t, string_t_to_python >();
}
static PyObject* convert(string_t const& s)
{
return incref(object(s.ToCStr()).ptr());
}
};
struct baseentity_to_python
{
baseentity_to_python()
{
to_python_converter< CBaseEntity*, baseentity_to_python >();
}
static PyObject* convert(CBaseEntity* pAddr)
{
return incref(object(CBaseEntityWrapper::wrap(pAddr)).ptr());
}
};
struct baseentity_from_python
{
baseentity_from_python()
{
boost::python::converter::registry::insert(
&convert,
boost::python::type_id<CBaseEntity>()
);
}
static void* convert(PyObject* obj)
{
CBaseEntityWrapper* pAddr = extract<CBaseEntityWrapper*>(obj);
return (void *) pAddr;
}
};
//---------------------------------------------------------------------------------
// Initializes all converters
//---------------------------------------------------------------------------------
void InitConverters()
{
string_t_to_python();
baseentity_to_python();
baseentity_from_python();
}