IndexBuffer.cpp

#include "IndexBuffer.h"
#include "Renderer.h"
 
namespace Vivid
{
    IndexBuffer::IndexBuffer(Vector<unsigned int>& indices)
        : m_Count(indices.size())
    {
        GLCall(glGenBuffers(1, &m_RendererID)); // creating a buffer
        GLCall(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_RendererID)); // binding the buffer
        GLCall(glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int), indices.data(),
            GL_STATIC_DRAW));
    }
 
    IndexBuffer::~IndexBuffer()
    {
        GLCall(glDeleteBuffers(1, &m_RendererID));
    }
 
    void IndexBuffer::Bind() const
    {
        GLCall(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_RendererID));
    }
 
    void IndexBuffer::Unbind() const
    {
        GLCall(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
    }
 
    Ref<IndexBuffer> IndexBuffer::Create(Vector<unsigned int>& indices)
    {
        return MakeRef<IndexBuffer>(indices);
    }
}