/* $Id$
This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
+Copyright © 2007-2009 Mikko Rasa, Mikkosoft Productions
Distributed under the LGPL
*/
namespace GL {
VertexArrayBuilder::VertexArrayBuilder(VertexArray &a):
- data(a.data),
array(a)
{ }
void VertexArrayBuilder::vertex_(float x, float y, float z, float w)
{
- for(uint fmt=array.get_format(); fmt; fmt>>=4)
+ float *ptr=array.append();
+ for(const unsigned char *c=array.get_format().begin(); c!=array.get_format().end(); ++c)
{
- uint size=(fmt&3)+1;
- switch(fmt&12)
+ uint size=(*c&3)+1;
+ uint type=*c>>2;
+ switch(type)
{
case 0:
- data.push_back(x);
- data.push_back(y);
- if(size>=3) data.push_back(z);
- if(size>=4) data.push_back(w);
+ *ptr++=x;
+ *ptr++=y;
+ if(size>=3) *ptr++=z;
+ if(size>=4) *ptr++=w;
break;
- case 4:
- data.push_back(nx);
- data.push_back(ny);
- data.push_back(nz);
+ case 1:
+ *ptr++=nx;
+ *ptr++=ny;
+ *ptr++=nz;
break;
- case 8:
- data.push_back(ts);
- if(size>=2) data.push_back(tt);
- if(size>=3) data.push_back(tr);
- if(size>=4) data.push_back(tq);
+ case 2:
+ *ptr++=ts;
+ if(size>=2) *ptr++=tt;
+ if(size>=3) *ptr++=tr;
+ if(size>=4) *ptr++=tq;
break;
- case 12:
+ case 3:
if(size==1)
{
union { ubyte c[4]; float f; } u;
- u.c[0]=(ubyte)(cr*255);
- u.c[1]=(ubyte)(cg*255);
- u.c[2]=(ubyte)(cb*255);
- u.c[3]=(ubyte)(ca*255);
- data.push_back(u.f);
+ u.c[0]=static_cast<ubyte>(cr*255);
+ u.c[1]=static_cast<ubyte>(cg*255);
+ u.c[2]=static_cast<ubyte>(cb*255);
+ u.c[3]=static_cast<ubyte>(ca*255);
+ *ptr++=u.f;
}
else
{
- data.push_back(cr);
- data.push_back(cg);
- data.push_back(cb);
- if(size>=4) data.push_back(ca);
+ *ptr++=cr;
+ *ptr++=cg;
+ *ptr++=cb;
+ if(size>=4) *+ptr++=ca;
}
break;
+ default:
+ const Attrib &a=av[type-4];
+ *ptr++=a.x;
+ if(size>=2) *ptr++=a.y;
+ if(size>=3) *ptr++=a.z;
+ if(size>=4) *ptr++=a.w;
+ break;
}
}
}