Add destroy_image function

src/image.c

@@ -28,3 +28,18 @@ Image *create_image(u64 width, u64 height, Pixel *data,
 
   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);
+}

src/image.h

@@ -26,6 +26,7 @@ struct image {
 
 Image *create_image(u64 width, u64 height, Pixel *data,
                     const Allocator *allocator);
+void destroy_image(Image **img, const Allocator *allocator);
 
 #ifdef __cplusplus
 }