+VertexFormat operator,(const VertexFormat &f, unsigned i)
+{
+ if(!f.data)
+ throw invalid_operation("VertexFormat::operator,");
+ VertexFormat r = f;
+ unsigned char *c = r.data+r.data[0];
+ if((*c<TEXCOORD1 && i>0) || (*c<ATTRIB1 && i>=8) || i>=53)
+ throw out_of_range("VertexFormat::operator,");
+ *c += i*4;
+
+ return r;
+}
+
+void operator>>(const LexicalConverter &conv, VertexComponent &c)
+{
+ const string &str = conv.get();
+ if(str.size()==7 && !str.compare(0, 6, "VERTEX") && str[6]>='2' && str[6]<='4')
+ c = static_cast<VertexComponent>(VERTEX2+(str[6]-'2'));
+ else if(str=="NORMAL3")
+ c = NORMAL3;
+ else if(str.size()==12 && !str.compare(0, 5, "COLOR") && str[5]>='3' && str[5]<='4' && !str.compare(6, 6, "_FLOAT"))
+ c = static_cast<VertexComponent>(COLOR3_FLOAT+(str[5]-'3'));
+ else if(str=="COLOR4_UBYTE")
+ c = COLOR4_UBYTE;
+ else if(str.size()>=9 && !str.compare(0, 8, "TEXCOORD") && str[8]>='1' && str[8]<='4')
+ {
+ if(str.size()==9)
+ c = static_cast<VertexComponent>(TEXCOORD1+(str[8]-'1'));
+ else if(str.size()==11 && str[9]=='_' && str[10]>='0' && str[10]<='7')
+ c = static_cast<VertexComponent>(TEXCOORD1+(str[8]-'1')+(str[10]-'0')*4);
+ else
+ throw lexical_error(format("conversion of '%s' to VertexComponent", str));
+ }
+ else if(str.size()>=9 && !str.compare(0, 6, "ATTRIB") && str[6]>='1' && str[6]<='4' && str[7]=='_')
+ {
+ unsigned n;
+ try
+ {
+ n = lexical_cast<unsigned>(str.substr(8));
+ }
+ catch(const lexical_error &)
+ {
+ throw lexical_error(format("conversion of '%s' to VertexComponent", str));
+ }
+ c = static_cast<VertexComponent>(ATTRIB1+(str[6]-'1')+n*4);
+ }
+ else
+ throw lexical_error(format("conversion of '%s' to VertexComponent", str));
+}
+
+// XXX This will go away eventually
+void operator>>(const LexicalConverter &conv, VertexFormat &f)
+{
+ vector<string> parts = split(conv.get(), '_');
+ for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
+ {
+ if(*i=="COLOR4UB")
+ *i = "COLOR4_UBYTE";
+ else if(i->size()==7 && !i->compare(0, 5, "COLOR") && (*i)[6]=='F')
+ *i = i->substr(0, 6)+"_FLOAT";
+ else if(i->size()>=10 && !i->compare(0, 8, "TEXCOORD"))
+ *i = i->substr(0, 9)+"_"+i->substr(9);
+ else if(i->size()>=8 && !i->compare(0, 6, "ATTRIB"))
+ *i = i->substr(0, 7)+"_"+i->substr(7);