buffer.cpp

/*
 * MIT License
 *
 * Copyright (c) 2024 Giovanni Santini
 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */
 
#include "buffer.hpp"
 
#include "engine_logger.hpp"
 
using namespace brenta;
using namespace brenta::types;
 
buffer::buffer(GLenum input_target)
{
    this->target = input_target;
    glGenBuffers(1, &id);
    bind();
}
 
void buffer::copy_data(GLsizeiptr size, const void *data, GLenum usage)
{
    glBufferData(this->target, size, data, usage);
}
 
void buffer::copy_indices(GLsizeiptr size, const void *data, GLenum usage)
{
    if (this->target != GL_ELEMENT_ARRAY_BUFFER)
        return;
    bind();
    glBufferData(this->target, size, data, usage);
}
 
void buffer::copy_vertices(GLsizeiptr size, const void *data, GLenum usage)
{
    if (this->target == GL_ELEMENT_ARRAY_BUFFER)
        return;
    bind();
    glBufferData(this->target, size, data, usage);
}
 
void buffer::bind()
{
    if (this->id == 0)
    {
        ERROR("Buffer not initialized");
        return;
    }
    glBindBuffer(this->target, this->id);
}
 
void buffer::unbind()
{
    glBindBuffer(this->target, 0);
}
 
void buffer::destroy()
{
    if (this->id == 0)
    {
        ERROR("Buffer not initialized");
        return;
    }
    glDeleteBuffers(1, &this->id);
}
 
int buffer::get_id()
{
    return this->id;
}
 
GLenum buffer::get_target()
{
    return this->target;
}
 
void buffer::set_id(unsigned int id)
{
    this->id = id;
}
 
void buffer::set_target(GLenum target)
{
    this->target = target;
}