VertexArray.cpp

#include "VertexArray.h"
 
namespace Vivid
{
    VertexArray::VertexArray()
    {
        GLCall(glGenVertexArrays(1, &m_RendererID));
        GLCall(glBindVertexArray(m_RendererID));
    }
 
    VertexArray::~VertexArray()
    {
    }
 
    void VertexArray::AddVertexBuffer(const VertexBuffer& vb, const VertexBufferLayout& layout,
        const Vector<Vertex>& vertices)
    {
        Bind();
        vb.Bind(vertices);
        const Vector<VertexBufferElement> elements = layout.GetElements();
        unsigned int offset = 0;
        for (unsigned int i = 0; i < elements.size(); i++)
        {
            const VertexBufferElement element = elements[i];
            GLCall(glEnableVertexAttribArray(i));
            GLCall(glVertexAttribPointer(i, element.count, element.type, element.normalised, layout.GetStride(),
                (const void*)offset));
            offset += element.count * VertexBufferElement::GetSizeOfType(element.type);
        }
    }
 
    void VertexArray::AddIndexBuffer(const IndexBuffer& ib)
    {
        Bind();
        ib.Bind();
    }
 
    void VertexArray::Bind() const
    {
        GLCall(glBindVertexArray(m_RendererID));
    }
 
    void VertexArray::Unbind() const
    {
        GLCall(glBindVertexArray(0));
    }
 
    Ref<VertexArray> VertexArray::Create()
    {
        return MakeRef<VertexArray>();
    };
}