lib/data/image_types.c


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#include <lib/data/image_types.h>
#include <stdlib.h>

Image* create_image(size_t width, size_t height)
{
  Image* ip = (Image*)malloc(sizeof(Image));
  ip->width = width;
  ip->height = height;
  ip->image = (ImageData_t**)malloc(sizeof(ImageData_t*) * ip->height);
  ImageData_t* image_data = calloc(width*height, sizeof(ImageData_t));
  for (size_t y = 0; y < height; y++) {
    ip->image[y] = &image_data[y*width];
  }
  return ip;
}

ImageMask* create_image_mask(size_t width, size_t height)
{
  ImageMask* ip = (ImageMask*)malloc(sizeof(ImageMask));
  ip->width = width;
  ip->height = height;
  ip->mask = (ImageMaskData_t**)malloc(sizeof(ImageMaskData_t*) * ip->height);
  ImageMaskData_t* image_data = calloc(width*height, sizeof(ImageMaskData_t));
  for (size_t y = 0; y < height; y++) {
    ip->mask[y] = &image_data[y*width];
  }
  return ip;
}

void free_image(Image* image)
{
  if (image->image[0] != NULL) {
    free(image->image[0]);
    image->image[0] = NULL;
  }
  if (image->image != NULL) {
    free(image->image);
    image->image = NULL;
  }
  if (image != NULL) {
    free(image);
  }
}

void free_image_mask(ImageMask* image_mask)
{
  if (image_mask->mask[0] != NULL) {
    free(image_mask->mask[0]);
    image_mask->mask[0] = NULL;
  }
  if (image_mask->mask != NULL) {
    free(image_mask->mask);
    image_mask->mask = NULL;
  }
  if (image_mask != NULL) {
    free(image_mask);
  }
}