const MeshVertex* D3D9Mesh::Vertices() const
{
if(_Vertices == NULL)
{
LockVB();
}
return _Vertices;
}
bool JRenderServer::CacheVB( int vbID, BYTE* pData, int size, int stride, int& iteration, int& firstByte )
{
if (vbID < 0 || vbID >= m_VBuffers.size()) return -1;
VBInstance& vb = m_VBuffers[vbID];
if (vb.m_CurIteration == iteration) return true;
// data is not in buffer - try to add it there
if (vb.m_Size < vb.m_CurLastByte + size + stride)
{
// no place in buffer - discard it
ClearVB( vbID );
vb.m_CurLastByte = 0;
vb.m_CurIteration++;
}
if (vb.m_Size < size)
{
rlog.err( "Could not cache %d bytes in vertex buffer %s", size, vb.m_Name.c_str() );
return false;
}
firstByte = vb.m_CurLastByte;
// align firstByte to stride
if (firstByte%stride != 0)
{
firstByte += stride - firstByte%stride;
}
iteration = vb.m_CurIteration;
BYTE* pBuf = LockVB( vbID, firstByte, size );
if (!pBuf)
{
rlog.err( "Could not lock vertex buffer, id:%d", vbID );
return false;
}
memcpy( pBuf, pData, size );
UnlockVB( vbID );
return true;
} // JRenderServer::CacheVB
void D3D9Mesh::Lock() const
{
LockVB();
LockIB();
}