#include "DXBuffer.h"

using namespace Framework;

// Contents of the DXBuffer class

// Constructor
//  bind: The usage purpose of the buffer. Example: D3D11_BIND_INDEX_BUFFER,
//  D3D11_BIND_VERTEX_BUFFER. eLaen: Length of a single element in bytes
DXBuffer::DXBuffer(int eLen)
    : ReferenceCounter()
{
    data = 0;
    changed = 0;
    len = 0;
    elLen = eLen;
}

// Destructor
DXBuffer::~DXBuffer() {}

// Sets the changed flag so that data is re-copied on the next call to
// 'copy'
void DXBuffer::setChanged()
{
    changed = 1;
}

// Changes the length of the buffer on the next call to 'copy'
//  laen: The length in bytes
void DXBuffer::setLength(__int64 len)
{
    if (this->len != len)
    {
        this->len = len;
        changed = 1;
    }
}

// Sets what will be copied on the next call to 'copy'
//  data: A pointer to the data
void DXBuffer::setData(void* data, bool shureChanged)
{
    if (this->data != data || shureChanged)
    {
        this->data = data;
        changed = 1;
    }
}

// Returns the length of an element in bytes
int DXBuffer::getElementLength() const
{
    return elLen;
}

// Returns the number of elements in the buffer
__int64 DXBuffer::getElementCount() const
{
    return len / elLen;
}