/// \file image.cpp
/// \copyright 2022 Sascha Nitsch
/// Licenced under MIT
/// \brief definition of the main class of the application

// system includes
#include <stdlib.h>
#include <string.h>
// own includes
#include "image.h"

Image::Image(uint16_t width, uint16_t height, uint8_t channels, uint8_t bits, void* pixels) {
  m_width = width;
  m_height = height;
  m_channels = channels;
  m_pixels = pixels;
  m_ownPixel = false;
  m_bitsPerChannel = bits;
}

Image::~Image() {
  if (m_ownPixel && m_pixels) {
    free(m_pixels);
  }
}
bool Image::allocateMemory() {
  if (m_ownPixel && m_pixels) {
    free(m_pixels);
  }
  m_pixels = reinterpret_cast<uint8_t*>(malloc(m_width * m_height * m_channels * m_bitsPerChannel / 8));
  bzero(m_pixels, m_width * m_height * m_channels * m_bitsPerChannel / 8);
  if (m_pixels) {
    m_ownPixel = true;
    return true;
  }
  return false;
}

uint8_t* Image::getPixels8() const {
  return reinterpret_cast<uint8_t*>(m_pixels);
}

uint16_t* Image::getPixels16() const {
  return reinterpret_cast<uint16_t*>(m_pixels);
}

uint16_t Image::getHeight() const {
  return m_height;
}

uint16_t Image::getWidth() const {
  return m_width;
}