VertexBuffer.cpp

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/*
 * =====================================================================================
 *
 *       Filename:  VertexBuffer.cpp
 *
 *    Description:
 *
 *        Created:  15/12/2014 17:10:16
 *
 *         Author:  Quentin Bazin, <quent42340@gmail.com>
 *
 * =====================================================================================
 */
#include "gk/gl/GLCheck.hpp"
#include "gk/gl/VertexBuffer.hpp"

namespace gk {

VertexBuffer::VertexBuffer() {
    glCheck(glGenBuffers(1, &m_id));
}

VertexBuffer::VertexBuffer(VertexBuffer &&vertexBuffer) {
    m_id = vertexBuffer.m_id;
    vertexBuffer.m_id = 0;
}

VertexBuffer::~VertexBuffer() noexcept {
    glCheck(glDeleteBuffers(1, &m_id));
}

void VertexBuffer::setData(GLsizeiptr size, const GLvoid *data, GLenum usage) const {
    glCheck(glBufferData(GL_ARRAY_BUFFER, size, data, usage));
}

void VertexBuffer::updateData(GLintptr offset, GLsizeiptr size, const GLvoid *data) const {
    glCheck(glBufferSubData(GL_ARRAY_BUFFER, offset, size, data));
}

void VertexBuffer::setAttribPointer(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer) const {
    glCheck(glVertexAttribPointer(index, size, type, normalized, stride, pointer));
}

void VertexBuffer::bind(const VertexBuffer *vertexBuffer) {
    if(vertexBuffer) {
        glCheck(glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer->m_id));
    } else {
        glCheck(glBindBuffer(GL_ARRAY_BUFFER, 0));
    }
}

} // namespace gk