VertexBuffer.cpp

#include "VertexBuffer.h"
#include "Renderer.h"
 
namespace Vivid
{
    VertexBuffer::VertexBuffer(std::vector<Vertex>& vertices)
    {
        GLCall(glGenBuffers(1, &m_RendererID)); // creating a buffer
        GLCall(glBindBuffer(GL_ARRAY_BUFFER, m_RendererID)); // binding the buffer
        GLCall(glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), nullptr, GL_STREAM_DRAW));
    }
 
    VertexBuffer::~VertexBuffer()
    {
        GLCall(glDeleteBuffers(1, &m_RendererID));
    }
 
    void VertexBuffer::Bind(const std::vector<Vertex>& vertices) const
    {
        GLCall(glBindBuffer(GL_ARRAY_BUFFER, m_RendererID));
        GLCall(glBufferSubData(GL_ARRAY_BUFFER, 0, vertices.size() * sizeof(Vertex), vertices.data()));
    }
 
    void VertexBuffer::Unbind() const
    {
        GLCall(glBindBuffer(GL_ARRAY_BUFFER, 0));
    }
 
    Ref<VertexBuffer> VertexBuffer::Create(std::vector<Vertex>& vertices)
    {
        return MakeRef<VertexBuffer>(vertices);
    }
}