bool MarchingCubesBuffers::forceAllocateEdgeBuffers(unsigned int width, unsigned int height)
{
// allocate the edge buffer without checking to see if we already have a big enough buffer
m_EdgeCaches[0] = new unsigned int[width*height];
m_EdgeCaches[1] = new unsigned int[width*height];
m_EdgeCaches[2] = new unsigned int[width*height];
m_EdgeCaches[3] = new unsigned int[width*height];
m_EdgeCaches[4] = new unsigned int[width*height];
m_VertClassifications[0] = new unsigned int[width*height];
m_VertClassifications[1] = new unsigned int[width*height];
if (m_EdgeCaches[0]&&
m_EdgeCaches[1]&&
m_EdgeCaches[2]&&
m_EdgeCaches[3]&&
m_EdgeCaches[4]&&
m_VertClassifications[0]&&
m_VertClassifications[0]) {
m_AmountAllocated = width*height;
return true;
}
else {
destroyEdgeBuffers();
return false;
}
}
bool MarchingCubesBuffers::allocateEdgeBuffers(unsigned int width, unsigned int height)
{
// only allocate memory if our current buffer is not big enough
if (width*height>m_AmountAllocated) {
destroyEdgeBuffers();
return forceAllocateEdgeBuffers(width, height);
}
else {
return true;
}
}
MarchingCubesBuffers::~MarchingCubesBuffers()
{
destroyEdgeBuffers();
}
