std::string RetrieveAttrValue(XMLNodePtr node, std::string const & attr_name, std::string const & default_value)
{
XMLAttributePtr attr = node->Attrib(attr_name);
if (attr)
{
return attr->ValueString();
}
return default_value;
}
void SubThreadStage()
{
ResIdentifierPtr psmm_input = ResLoader::Instance().Open(ps_desc_.res_name);
KlayGE::XMLDocument doc;
XMLNodePtr root = doc.Parse(psmm_input);
{
XMLNodePtr particle_node = root->FirstNode("particle");
{
XMLNodePtr alpha_node = particle_node->FirstNode("alpha");
ps_desc_.ps_data->particle_alpha_from_tex = alpha_node->Attrib("from")->ValueString();
ps_desc_.ps_data->particle_alpha_to_tex = alpha_node->Attrib("to")->ValueString();
}
{
XMLNodePtr color_node = particle_node->FirstNode("color");
{
Color from;
XMLAttributePtr attr = color_node->Attrib("from");
if (attr)
{
std::vector<std::string> strs;
boost::algorithm::split(strs, attr->ValueString(), boost::is_any_of(" "));
for (size_t i = 0; i < 3; ++ i)
{
if (i < strs.size())
{
boost::algorithm::trim(strs[i]);
from[i] = static_cast<float>(atof(strs[i].c_str()));
}
else
{
from[i] = 0;
}
}
}
from.a() = 1;
ps_desc_.ps_data->particle_color_from = from;
Color to;
attr = color_node->Attrib("to");
if (attr)
{
std::vector<std::string> strs;
boost::algorithm::split(strs, attr->ValueString(), boost::is_any_of(" "));
for (size_t i = 0; i < 3; ++ i)
{
if (i < strs.size())
{
boost::algorithm::trim(strs[i]);
to[i] = static_cast<float>(atof(strs[i].c_str()));
}
else
{
to[i] = 0;
}
}
}
to.a() = 1;
ps_desc_.ps_data->particle_color_to = to;
}
}
}
{
XMLNodePtr emitter_node = root->FirstNode("emitter");
XMLAttributePtr type_attr = emitter_node->Attrib("type");
if (type_attr)
{
ps_desc_.ps_data->emitter_type = type_attr->ValueString();
}
else
{
ps_desc_.ps_data->emitter_type = "point";
}
XMLNodePtr freq_node = emitter_node->FirstNode("frequency");
if (freq_node)
{
XMLAttributePtr attr = freq_node->Attrib("value");
ps_desc_.ps_data->frequency = attr->ValueFloat();
}
XMLNodePtr angle_node = emitter_node->FirstNode("angle");
if (angle_node)
{
XMLAttributePtr attr = angle_node->Attrib("value");
ps_desc_.ps_data->angle = attr->ValueInt() * DEG2RAD;
}
XMLNodePtr pos_node = emitter_node->FirstNode("pos");
if (pos_node)
{
float3 min_pos(0, 0, 0);
XMLAttributePtr attr = pos_node->Attrib("min");
if (attr)
{
std::vector<std::string> strs;
boost::algorithm::split(strs, attr->ValueString(), boost::is_any_of(" "));
for (size_t i = 0; i < 3; ++ i)
{
if (i < strs.size())
{
boost::algorithm::trim(strs[i]);
min_pos[i] = static_cast<float>(atof(strs[i].c_str()));
}
else
{
min_pos[i] = 0;
}
}
}
ps_desc_.ps_data->min_pos = min_pos;
float3 max_pos(0, 0, 0);
attr = pos_node->Attrib("max");
if (attr)
{
std::vector<std::string> strs;
boost::algorithm::split(strs, attr->ValueString(), boost::is_any_of(" "));
for (size_t i = 0; i < 3; ++ i)
{
if (i < strs.size())
{
boost::algorithm::trim(strs[i]);
max_pos[i] = static_cast<float>(atof(strs[i].c_str()));
}
else
{
max_pos[i] = 0;
}
}
}
ps_desc_.ps_data->max_pos = max_pos;
}
XMLNodePtr vel_node = emitter_node->FirstNode("vel");
if (vel_node)
{
XMLAttributePtr attr = vel_node->Attrib("min");
ps_desc_.ps_data->min_vel = attr->ValueFloat();
attr = vel_node->Attrib("max");
ps_desc_.ps_data->max_vel = attr->ValueFloat();
}
XMLNodePtr life_node = emitter_node->FirstNode("life");
if (life_node)
{
XMLAttributePtr attr = life_node->Attrib("min");
ps_desc_.ps_data->min_life = attr->ValueFloat();
attr = life_node->Attrib("max");
ps_desc_.ps_data->max_life = attr->ValueFloat();
}
}
{
XMLNodePtr updater_node = root->FirstNode("updater");
XMLAttributePtr type_attr = updater_node->Attrib("type");
if (type_attr)
{
ps_desc_.ps_data->updater_type = type_attr->ValueString();
}
else
{
ps_desc_.ps_data->updater_type = "polyline";
}
if ("polyline" == ps_desc_.ps_data->updater_type)
{
for (XMLNodePtr node = updater_node->FirstNode("curve"); node; node = node->NextSibling("curve"))
{
std::vector<float2> xys;
for (XMLNodePtr ctrl_point_node = node->FirstNode("ctrl_point"); ctrl_point_node; ctrl_point_node = ctrl_point_node->NextSibling("ctrl_point"))
{
XMLAttributePtr attr_x = ctrl_point_node->Attrib("x");
XMLAttributePtr attr_y = ctrl_point_node->Attrib("y");
xys.push_back(float2(attr_x->ValueFloat(), attr_y->ValueFloat()));
}
XMLAttributePtr attr = node->Attrib("name");
size_t const name_hash = RT_HASH(attr->ValueString().c_str());
if (CT_HASH("size_over_life") == name_hash)
{
ps_desc_.ps_data->size_over_life_ctrl_pts = xys;
}
else if (CT_HASH("mass_over_life") == name_hash)
{
ps_desc_.ps_data->mass_over_life_ctrl_pts = xys;
}
else if (CT_HASH("opacity_over_life") == name_hash)
{
ps_desc_.ps_data->opacity_over_life_ctrl_pts = xys;
}
}
}
}
RenderFactory& rf = Context::Instance().RenderFactoryInstance();
RenderDeviceCaps const & caps = rf.RenderEngineInstance().DeviceCaps();
if (caps.multithread_res_creating_support)
{
this->MainThreadStage();
}
}