tree 2524613b2e7d576260f696e6e607c255412ff96e
parent 1518d0c5fed8b64b8e103334d75fe6f191fd4627
author Chip Davis <cdavis@codeweavers.com> 1543988352 -0600
committer Chip Davis <cdavis@codeweavers.com> 1544033755 -0600

Support the VK_KHR_swapchain_mutable_format extension.

This allows clients to create views of a swapchain image with a
different format, just like a regular image created with the
`VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT` set. This extension also supports
the additional features provided by `VK_KHR_maintenance2` and
`VK_KHR_image_format_list` for swapchain images.

We... admittedly don't do much with any of this. There wasn't really
anything in Metal stopping clients from doing this to begin with. This
change does, however, set the `MUTABLE_FORMAT` and `EXTENDED_USAGE`
image bits on any swapchain created with the new
`VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR`.