#include "IndexBuffer.h"
#include "GraphicsEngine.h"

IndexBuffer::IndexBuffer() : m_buffer(0)
{
}

bool IndexBuffer::load(void* list_indices, UINT size_list)
{
    if (m_buffer)m_buffer->Release();

    D3D11_BUFFER_DESC buff_desc = {};
    buff_desc.Usage = D3D11_USAGE_DEFAULT;
    buff_desc.ByteWidth = 4 * size_list;
    buff_desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
    buff_desc.CPUAccessFlags = 0;
    buff_desc.MiscFlags = 0;

    D3D11_SUBRESOURCE_DATA init_data = {};
    init_data.pSysMem = list_indices;

    m_size_list = size_list;

    if (FAILED(GraphicsEngine::get()->m_d3d_device->CreateBuffer(&buff_desc, &init_data, &m_buffer)))
    {
        return false;
    }

    return true;
}

UINT IndexBuffer::getSizeIndexList()
{
    return this->m_size_list;
}

bool IndexBuffer::release()
{
    m_buffer->Release();
    delete this;
    return true;
}

IndexBuffer::~IndexBuffer()
{
}