/
LuaScriptEngine.cpp
1975 lines (1747 loc) · 63.3 KB
/
LuaScriptEngine.cpp
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2013 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#include "LuaScriptEngine.h"
#include <osg/io_utils>
#include <osgDB/ReadFile>
using namespace lua;
class LuaCallbackObject : public osg::CallbackObject
{
public:
LuaCallbackObject(const std::string& methodName, const LuaScriptEngine* lse, int ref):_lse(lse),_ref(ref) { setName(methodName); }
virtual bool run(osg::Object* object, osg::Parameters& inputParameters, osg::Parameters& outputParameters) const
{
int topBeforeCall = lua_gettop(_lse->getLuaState());
lua_rawgeti(_lse->getLuaState(), LUA_REGISTRYINDEX, _ref);
int numInputs = 1;
_lse->pushParameter(object);
for(osg::Parameters::iterator itr = inputParameters.begin();
itr != inputParameters.end();
++itr)
{
_lse->pushParameter(itr->get());
++numInputs;
}
if (lua_pcall(_lse->getLuaState(), numInputs, LUA_MULTRET,0)!=0)
{
OSG_NOTICE<<"Lua error : "<<lua_tostring(_lse->getLuaState(), -1)<<std::endl;
return false;
}
int topAfterCall = lua_gettop(_lse->getLuaState());
int numReturns = topAfterCall-topBeforeCall;
for(int i=1; i<=numReturns; ++i)
{
outputParameters.insert(outputParameters.begin(), _lse->popParameterObject());
}
return true;
}
int getRef() const { return _ref; }
protected:
osg::ref_ptr<const LuaScriptEngine> _lse;
int _ref;
};
static int getProperty(lua_State * _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==2)
{
if (lua_type(_lua, 1)==LUA_TTABLE &&
lua_type(_lua, 2)==LUA_TSTRING)
{
std::string propertyName = lua_tostring(_lua, 2);
osg::Object* object = 0;
lua_pushstring(_lua, "object_ptr");
lua_rawget(_lua, 1);
if (lua_type(_lua, -1)==LUA_TUSERDATA)
{
object = *const_cast<osg::Object**>(reinterpret_cast<const osg::Object**>(lua_touserdata(_lua,-1)));
}
lua_pop(_lua,1);
return lse->pushPropertyToStack(object, propertyName);
}
}
OSG_NOTICE<<"Warning: Lua getProperty() not matched"<<std::endl;
return 0;
}
static int setProperty(lua_State* _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==3)
{
if (lua_type(_lua, 1)==LUA_TTABLE &&
lua_type(_lua, 2)==LUA_TSTRING)
{
std::string propertyName = lua_tostring(_lua, 2);
osg::Object* object = 0;
lua_pushstring(_lua, "object_ptr");
lua_rawget(_lua, 1);
if (lua_type(_lua, -1)==LUA_TUSERDATA)
{
object = *const_cast<osg::Object**>(reinterpret_cast<const osg::Object**>(lua_touserdata(_lua,-1)));
}
lua_pop(_lua,1);
return lse->setPropertyFromStack(object, propertyName);
}
}
OSG_NOTICE<<"Warning: Lua setProperty() not matched"<<std::endl;
return 0;
}
static int callClassMethod(lua_State* _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
std::string methodName = lua_tostring(_lua, lua_upvalueindex(2));
int n = lua_gettop(_lua); /* number of arguments */
if (n>=1 && lua_type(_lua, 1)==LUA_TTABLE)
{
osg::Object* object = lse->getObjectFromTable<osg::Object>(1);
const std::string compoundClassName = lse->getObjectCompoundClassName(1); // object->getCompoundClassName();
// OSG_NOTICE<<"callClassMethod() on "<<object->className()<<" method name "<<methodName<<", stored compoundClassName "<<compoundClassName<<std::endl;
// need to put within a c function
osg::Parameters inputParameters, outputParameters;
for(int i=2; i<=n; ++i)
{
// OSG_NOTICE<<" need to push parameter "<<lua_typename(_lua, lua_type(_lua, n))<<std::endl;
inputParameters.insert(inputParameters.begin(), lse->popParameterObject());
}
if (lse->getPropertyInterface().run(object, compoundClassName, methodName, inputParameters, outputParameters))
{
for(osg::Parameters::iterator itr = outputParameters.begin();
itr != outputParameters.end();
++itr)
{
// OSG_NOTICE<<" pushing return "<<(*itr)->className()<<std::endl;
lse->pushParameter(itr->get());
}
return outputParameters.size();
}
}
else
{
OSG_NOTICE<<"Warning: lua method called without passing object, use object::method() convention."<<std::endl;
}
return 0;
}
static int garabageCollectObject(lua_State* _lua)
{
int n = lua_gettop(_lua); /* number of arguments */
if (n==1)
{
if (lua_type(_lua, 1)==LUA_TUSERDATA)
{
osg::Object* object = *const_cast<osg::Object**>(reinterpret_cast<const osg::Object**>(lua_touserdata(_lua, 1)));
object->unref();
}
}
return 0;
}
static int newObject(lua_State * _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==1)
{
if (lua_type(_lua, 1)==LUA_TSTRING)
{
std::string compoundName = lua_tostring(_lua, 1);
lse->createAndPushObject(compoundName);
return 1;
}
}
return 0;
}
static int castObject(lua_State * _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==2)
{
if (lua_type(_lua, 1)==LUA_TSTRING && lua_type(_lua, 2)==LUA_TTABLE)
{
std::string new_compoundClassName = lua_tostring(_lua, 1);
osg::Object* object = lse->getObjectFromTable<osg::Object>(2);
lse->pushAndCastObject(new_compoundClassName, object);
return 1;
}
}
return 0;
}
static int readObjectFile(lua_State * _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==1 && lua_type(_lua, 1)==LUA_TSTRING)
{
std::string filename = lua_tostring(_lua, 1);
osg::ref_ptr<osg::Object> object = osgDB::readObjectFile(filename);
if (object.valid())
{
lse->pushObject(object.get());
return 1;
}
}
return 0;
}
static int readImageFile(lua_State * _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==1 && lua_type(_lua, 1)==LUA_TSTRING)
{
std::string filename = lua_tostring(_lua, 1);
osg::ref_ptr<osg::Image> image = osgDB::readImageFile(filename);
if (image.valid())
{
lse->pushObject(image.get());
return 1;
}
}
return 0;
}
static int readNodeFile(lua_State * _lua)
{
const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
int n = lua_gettop(_lua); /* number of arguments */
if (n==1 && lua_type(_lua, 1)==LUA_TSTRING)
{
std::string filename = lua_tostring(_lua, 1);
osg::ref_ptr<osg::Node> node = osgDB::readNodeFile(filename);
if (node.valid())
{
lse->pushObject(node.get());
return 1;
}
}
return 0;
}
LuaScriptEngine::LuaScriptEngine():
osg::ScriptEngine("lua"),
_lua(0),
_scriptCount(0)
{
initialize();
}
LuaScriptEngine::LuaScriptEngine(const LuaScriptEngine& rhs, const osg::CopyOp&):
osg::ScriptEngine("lua"),
_lua(0),
_scriptCount(0)
{
initialize();
}
LuaScriptEngine::~LuaScriptEngine()
{
lua_close(_lua);
}
std::string LuaScriptEngine::createUniquieScriptName()
{
std::stringstream sstr;
sstr<<"script_"<<_scriptCount;
++_scriptCount;
return sstr.str();
}
void LuaScriptEngine::initialize()
{
_lua = luaL_newstate();
luaL_openlibs(_lua);
// provide global new method for creating osg::Object's.
{
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, newObject, 1);
lua_setglobal(_lua, "new");
}
// provide global new method for casting osg::Object's.
{
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, castObject, 1);
lua_setglobal(_lua, "cast");
}
// provide global new method for reading Objects
{
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, readObjectFile, 1);
lua_setglobal(_lua, "readObjectFile");
}
// provide global new method for reading Nodes
{
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, readNodeFile, 1);
lua_setglobal(_lua, "readNodeFile");
}
// provide global new method for read Images
{
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, readImageFile, 1);
lua_setglobal(_lua, "readImageFile");
}
// Set up the __newindex and __index methods for looking up implementations of Object properties
{
luaL_newmetatable(_lua, "LuaScriptEngine.Object");
lua_pushstring(_lua, "__index");
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, getProperty, 1);
lua_settable(_lua, -3);
lua_pushstring(_lua, "__newindex");
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, setProperty, 1);
lua_settable(_lua, -3);
lua_pop(_lua,1);
}
// Set up the __gc methods for looking up implementations of Object pointer to do the unref when the associated Lua object is destroyed.
{
luaL_newmetatable(_lua, "LuaScriptEngine.UnrefObject");
lua_pushstring(_lua, "__gc");
lua_pushlightuserdata(_lua, this);
lua_pushcclosure(_lua, garabageCollectObject, 1);
lua_settable(_lua, -3);
lua_pop(_lua,1);
}
}
bool LuaScriptEngine::loadScript(osg::Script* script)
{
if (_loadedScripts.count(script)!=0) return true;
int loadResult = luaL_loadstring(_lua, script->getScript().c_str());
if (loadResult==0)
{
std::string scriptID = createUniquieScriptName();
lua_pushvalue(_lua, -1);
lua_setglobal(_lua, scriptID.c_str());
_loadedScripts[script] = scriptID;
return true;
}
else
{
OSG_NOTICE << "LuaScriptEngine::luaL_loadstring(Script*) error: " << lua_tostring(_lua, -1) << std::endl;
return false;
}
}
bool LuaScriptEngine::run(osg::Script* script, const std::string& entryPoint, osg::Parameters& inputParameters, osg::Parameters& outputParameters)
{
if (!script || !_lua) return false;
if (_loadedScripts.count(script)==0)
{
if (!loadScript(script)) return false;
if (!entryPoint.empty())
{
if (lua_pcall(_lua, 0, 0, 0)!=0)
{
OSG_NOTICE<< "error initialize script "<< lua_tostring(_lua, -1)<<std::endl;
return false;
}
}
}
int topBeforeCall = lua_gettop(_lua);
if (entryPoint.empty())
{
ScriptMap::iterator itr = _loadedScripts.find(script);
if (itr == _loadedScripts.end()) return false;
std::string scriptID = itr->second;
lua_getglobal(_lua, scriptID.c_str());
}
else
{
lua_getglobal(_lua, entryPoint.c_str()); /* function to be called */
}
for(osg::Parameters::const_iterator itr = inputParameters.begin();
itr != inputParameters.end();
++itr)
{
pushParameter(itr->get());
}
if (lua_pcall(_lua, inputParameters.size(), LUA_MULTRET,0)!=0)
{
OSG_NOTICE<<"Lua error : "<<lua_tostring(_lua, -1)<<std::endl;
return false;
}
int topAfterCall = lua_gettop(_lua);
int numReturns = topAfterCall-topBeforeCall;
outputParameters.clear();
for(int i=0; i<numReturns; ++i)
{
osg::ref_ptr<osg::Object> obj = popParameterObject();
if (obj.valid()) outputParameters.push_back(obj);
}
return true;
}
class PushStackValueVisitor : public osg::ValueObject::GetValueVisitor
{
public:
const LuaScriptEngine* _lsg;
lua_State* _lua;
PushStackValueVisitor(const LuaScriptEngine* lsg) : _lsg(lsg) { _lua = const_cast<LuaScriptEngine*>(lsg)->getLuaState(); }
virtual void apply(bool value) { lua_pushboolean(_lua, value ? 0 : 1); }
virtual void apply(char value) { lua_pushnumber(_lua, value); }
virtual void apply(unsigned char value) { lua_pushnumber(_lua, value); }
virtual void apply(short value) { lua_pushnumber(_lua, value); }
virtual void apply(unsigned short value) { lua_pushnumber(_lua, value); }
virtual void apply(int value) { lua_pushnumber(_lua, value); }
virtual void apply(unsigned int value) { lua_pushnumber(_lua, value); }
virtual void apply(float value) { lua_pushnumber(_lua, value); }
virtual void apply(double value) { lua_pushnumber(_lua, value); }
virtual void apply(const std::string& value) { lua_pushlstring(_lua, &value[0], value.size()); }
virtual void apply(const osg::Vec2f& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Vec3f& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Vec4f& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Vec2d& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Vec3d& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Vec4d& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Quat& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Plane& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Matrixf& value) { _lsg->pushValue(value); }
virtual void apply(const osg::Matrixd& value) { _lsg->pushValue(value); }
};
#if LUA_VERSION_NUM<=501
#define lua_rawlen lua_strlen
#endif
class GetStackValueVisitor : public osg::ValueObject::SetValueVisitor
{
public:
const LuaScriptEngine* _lsg;
lua_State* _lua;
int _index;
int _numberToPop;
GetStackValueVisitor(const LuaScriptEngine* lsg, int index) : _lsg(lsg), _lua(0), _index(index), _numberToPop(0) { _lua = const_cast<LuaScriptEngine*>(lsg)->getLuaState(); }
virtual void apply(bool& value) { if (lua_isboolean(_lua, _index)) { value = (lua_toboolean(_lua, _index)!=0); _numberToPop = 1; } }
virtual void apply(char& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(unsigned char& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(short& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(unsigned short& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(int& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(unsigned int& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(float& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(double& value) { if (lua_isnumber(_lua, _index)) { value = lua_tonumber(_lua, _index)!=0; _numberToPop = 1; } }
virtual void apply(std::string& value) { if (lua_isstring(_lua, _index)) { value = std::string(lua_tostring(_lua, _index), lua_rawlen(_lua, _index)); _numberToPop = 1; } }
virtual void apply(osg::Vec2f& value) { _lsg->getValue(value); _numberToPop = 2;}
virtual void apply(osg::Vec3f& value) { _lsg->getValue(value); _numberToPop = 2; }
virtual void apply(osg::Vec4f& value) { _lsg->getValue(value); _numberToPop = 4; }
virtual void apply(osg::Vec2d& value) { _lsg->getValue(value); _numberToPop = 2; }
virtual void apply(osg::Vec3d& value) { _lsg->getValue(value); _numberToPop = 3; }
virtual void apply(osg::Vec4d& value) { _lsg->getValue(value); _numberToPop = 4; }
virtual void apply(osg::Quat& value) { _lsg->getValue(value); _numberToPop = 4; }
virtual void apply(osg::Plane& value) { _lsg->getValue(value); _numberToPop = 4; }
virtual void apply(osg::Matrixf& value) { _lsg->getValue(value); }
virtual void apply(osg::Matrixd& value) { _lsg->getValue(value); }
virtual void apply(osg::BoundingBoxf& value) { _lsg->getValue(value); }
virtual void apply(osg::BoundingBoxd& value) { _lsg->getValue(value); }
virtual void apply(osg::BoundingSpheref& value) { _lsg->getValue(value); }
virtual void apply(osg::BoundingSphered& value) { _lsg->getValue(value); }
};
int LuaScriptEngine::pushPropertyToStack(osg::Object* object, const std::string& propertyName) const
{
// OSG_NOTICE<<"LuaScriptEngine::pushPropertyToStack("<<object<<", "<<propertyName<<")"<<std::endl;
osgDB::BaseSerializer::Type type;
if (!_pi.getPropertyType(object, propertyName, type))
{
if (_pi.hasMethod(object, propertyName))
{
lua_pushlightuserdata(_lua, const_cast<LuaScriptEngine*>(this));
lua_pushstring(_lua, propertyName.c_str());
lua_pushcclosure(_lua, callClassMethod, 2);
return 1;
}
osg::Object* uo = osg::getUserObject(object, propertyName);
LuaCallbackObject* lco = dynamic_cast<LuaCallbackObject*>(uo);
if (lco)
{
lua_rawgeti(_lua, LUA_REGISTRYINDEX, lco->getRef());
return 1;
}
else if (uo)
{
pushObject(uo);
return 1;
}
OSG_NOTICE<<"LuaScriptEngine::pushPropertyToStack("<<object<<", "<<propertyName<<") no property found."<<std::endl;
return 0;
}
switch(type)
{
case(osgDB::BaseSerializer::RW_BOOL):
{
bool value;
if (_pi.getProperty(object, propertyName, value))
{
lua_pushboolean(_lua, value ? 1 : 0);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_STRING):
{
std::string value;
if (_pi.getProperty(object, propertyName, value))
{
lua_pushstring(_lua, value.c_str());
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_GLENUM):
{
GLenum value;
if (_pi.getProperty(object, propertyName, value))
{
std::string enumString = lookUpGLenumString(value);
lua_pushstring(_lua, enumString.c_str());
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_ENUM):
{
int value;
if (_pi.getProperty(object, propertyName, value))
{
osgDB::BaseSerializer* serializer = _pi.getSerializer(object, propertyName, type);
osgDB::IntLookup* lookup = serializer ? serializer->getIntLookup() : 0;
if (lookup)
{
std::string enumString = lookup->getString(value);
lua_pushstring(_lua, enumString.c_str());
}
else
{
lua_pushinteger(_lua, value);
}
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_INT):
{
int value;
if (_pi.getProperty(object, propertyName, value))
{
lua_pushinteger(_lua, value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_UINT):
{
unsigned int value;
if (_pi.getProperty(object, propertyName, value))
{
lua_pushinteger(_lua, value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_FLOAT):
{
float value;
if (_pi.getProperty(object, propertyName, value))
{
lua_pushnumber(_lua, value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_DOUBLE):
{
double value;
if (_pi.getProperty(object, propertyName, value))
{
lua_pushnumber(_lua, value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC2F):
{
osg::Vec2f value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC3F):
{
osg::Vec3f value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC4F):
{
osg::Vec4f value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC2D):
{
osg::Vec2d value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC3D):
{
osg::Vec3d value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC4D):
{
osg::Vec4d value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
#ifdef OSG_USE_FLOAT_MATRIX
case(osgDB::BaseSerializer::RW_MATRIX):
#endif
case(osgDB::BaseSerializer::RW_MATRIXF):
{
osg::Matrixf value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
#ifndef OSG_USE_FLOAT_MATRIX
case(osgDB::BaseSerializer::RW_MATRIX):
#endif
case(osgDB::BaseSerializer::RW_MATRIXD):
{
osg::Matrixd value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_BOUNDINGBOXF):
{
osg::BoundingBoxf value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_BOUNDINGBOXD):
{
osg::BoundingBoxd value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_BOUNDINGSPHEREF):
{
osg::BoundingSpheref value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_BOUNDINGSPHERED):
{
osg::BoundingSphered value;
if (_pi.getProperty(object, propertyName, value))
{
pushValue(value);
return 1;
}
break;
}
case(osgDB::BaseSerializer::RW_LIST):
{
OSG_NOTICE<<"Need to implement RW_LIST support"<<std::endl;
break;
}
case(osgDB::BaseSerializer::RW_IMAGE):
case(osgDB::BaseSerializer::RW_OBJECT):
{
osg::Object* value = 0;
if (_pi.getProperty(object, propertyName, value))
{
pushObject(value);
return 1;
}
break;
}
default:
break;
}
OSG_NOTICE<<"LuaScriptEngine::pushPropertyToStack("<<object<<", "<<propertyName<<") property of type = "<<_pi.getTypeName(type)<<" error, not supported."<<std::endl;
return 0;
}
std::string LuaScriptEngine::lookUpGLenumString(GLenum value) const
{
osgDB::ObjectWrapperManager* ow = osgDB::Registry::instance()->getObjectWrapperManager();
{
const osgDB::IntLookup& lookup = ow->getLookupMap()["GL"];
const osgDB::IntLookup::ValueToString& vts = lookup.getValueToString();
osgDB::IntLookup::ValueToString::const_iterator itr = vts.find(value);
if (itr!=vts.end()) return itr->second;
}
{
const osgDB::IntLookup& lookup = ow->getLookupMap()["PrimitiveType"];
const osgDB::IntLookup::ValueToString& vts = lookup.getValueToString();
osgDB::IntLookup::ValueToString::const_iterator itr = vts.find(value);
if (itr!=vts.end()) return itr->second;
}
OSG_NOTICE<<"Warning: LuaScriptEngine did not find valid GL enum value for GLenum value: "<<value<<std::endl;
return std::string();
}
GLenum LuaScriptEngine::lookUpGLenumValue(const std::string& str) const
{
osgDB::ObjectWrapperManager* ow = osgDB::Registry::instance()->getObjectWrapperManager();
{
const osgDB::IntLookup& lookup = ow->getLookupMap()["GL"];
const osgDB::IntLookup::StringToValue& stv = lookup.getStringToValue();
osgDB::IntLookup::StringToValue::const_iterator itr = stv.find(str);
if (itr!=stv.end()) return itr->second;
}
{
const osgDB::IntLookup& lookup = ow->getLookupMap()["PrimitiveType"];
const osgDB::IntLookup::StringToValue& stv = lookup.getStringToValue();
osgDB::IntLookup::StringToValue::const_iterator itr = stv.find(str);
if (itr!=stv.end()) return itr->second;
}
OSG_NOTICE<<"Warning: LuaScriptEngine did not find valid GL enum value for string value: "<<str<<std::endl;
return GL_NONE;
}
int LuaScriptEngine::setPropertyFromStack(osg::Object* object, const std::string& propertyName) const
{
osgDB::BaseSerializer::Type type;
if (!_pi.getPropertyType(object, propertyName, type))
{
if (lua_type(_lua,-1)==LUA_TFUNCTION)
{
int ref = luaL_ref(_lua, LUA_REGISTRYINDEX);
osg::ref_ptr<LuaCallbackObject> lco = new LuaCallbackObject(propertyName, this, ref);
object->getOrCreateUserDataContainer()->addUserObject(lco.get());
return 0;
}
type = LuaScriptEngine::getType();
}
switch(type)
{
case(osgDB::BaseSerializer::RW_BOOL):
{
if (lua_isboolean(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<bool>(lua_toboolean(_lua, -1)));
return 0;
}
else if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<bool>(lua_tonumber(_lua, -1)!=0));
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_STRING):
{
if (lua_isstring(_lua, -1))
{
_pi.setProperty(object, propertyName, std::string(lua_tostring(_lua, -1)));
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_GLENUM):
{
OSG_NOTICE<<"LuaScriptEngine::setPropertyFromStack("<<propertyName<<") osgDB::BaseSerializer::RW_GLENUM"<<std::endl;
if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<GLenum>(lua_tonumber(_lua, -1)));
return 0;
}
else if (lua_isstring(_lua, -1))
{
const char* enumString = lua_tostring(_lua, -1);
GLenum value = lookUpGLenumValue(enumString); //getValue("GL",enumString);
OSG_NOTICE<<"Checking enumString="<<enumString<<", got back value ="<<value<<std::endl;
_pi.setProperty(object, propertyName, value);
return 0;
}
OSG_NOTICE<<"LuaScriptEngine::setPropertyFromStack("<<propertyName<<") osgDB::BaseSerializer::RW_GLENUM Failed"<<std::endl;
break;
}
case(osgDB::BaseSerializer::RW_ENUM):
{
if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<int>(lua_tonumber(_lua, -1)));
return 0;
}
else if (lua_isstring(_lua, -1))
{
const char* enumString = lua_tostring(_lua, -1);
osgDB::BaseSerializer* serializer = _pi.getSerializer(object, propertyName, type);
osgDB::IntLookup* lookup = serializer ? serializer->getIntLookup() : 0;
if (lookup)
{
int value = lookup->getValue(enumString);
_pi.setProperty(object, propertyName, value);
}
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_INT):
{
if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<int>(lua_tonumber(_lua, -1)));
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_UINT):
{
if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<unsigned int>(lua_tonumber(_lua, -1)));
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_FLOAT):
{
if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<float>(lua_tonumber(_lua, -1)));
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_DOUBLE):
{
if (lua_isnumber(_lua, -1))
{
_pi.setProperty(object, propertyName, static_cast<double>(lua_tonumber(_lua, -1)));
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC2F):
{
osg::Vec2f value;
if (getValue(value))
{
_pi.setProperty(object, propertyName, value);
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC3F):
{
osg::Vec3f value;
if (getValue(value))
{
_pi.setProperty(object, propertyName, value);
return 0;
}
break;
}
case(osgDB::BaseSerializer::RW_VEC4F):