#include "image.h"
#include "mem_allocator.h"
#include "mem_libc.h"
#include <stddef.h>
#include <string.h>

Image *create_image(u64 width, u64 height, Pixel *data,
                    const Allocator *allocator) {
  Allocator alloc;
  if (!allocator) {
    alloc = wapp_mem_libc_allocator();
  } else {
    alloc = *allocator;
  }

  u64 buf_length = width * height;
  u64 total_size = sizeof(Image) + sizeof(Pixel) * buf_length;

  Image *img = wapp_mem_allocator_alloc(&alloc, total_size);
  if (!img) {
    return NULL;
  }

  img->width = width;
  img->height = height;
  img->buf_length = buf_length;
  memcpy(img->data, data, buf_length);

  return img;
}

void destroy_image(Image **img, const Allocator *allocator) {
  if (!img || !(*img)) {
    return;
  }

  Allocator alloc;
  if (!allocator) {
    alloc = wapp_mem_libc_allocator();
  } else {
    alloc = *allocator;
  }

  wapp_mem_allocator_free(&alloc, (void **)img);
}