Re: [PATCH v4 0/3] MR267: vkd3d: Implement GetResourceTiling().

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about libs/vkd3d/resource.c:
> -
> -
>        tile_extent = &sparse_requirements.formatProperties.imageGranularity;
> -
>        tile_info = &resource->tiles.subresources[i];
> -
>        compute_image_subresource_size_in_tiles(tile_extent, &resource->desc, miplevel_idx, &tile_info->extent);
> -
>        tile_info->offset = start_idx;
> -
>        tile_info->count = 0;
> -
> -
>        if (miplevel_idx < resource->tiles.standard_mip_count)
> -
>        {
> -
>            tile_count = tile_info->extent.width * tile_info->extent.height * tile_info->extent.depth;
> -
>            start_idx += tile_count;
> -
>            tile_info->count = tile_count;
> -
>        }
> -
>        else if (miplevel_idx == resource->tiles.standard_mip_count)
> -
>        {
> -
>            tile_info->count = 1; /* Non-zero dummy value */

Why are you using this dummy value? It seems that Vulkan tells you how long the miptail/packed region should be in the field `imageMipTailSize`.