Selecting a transformation of swapchain images

On some (especially mobile) devices, images can be viewed from different orientations. Sometimes we would like to be able to specify how an image should be oriented when it is displayed on screen. In Vulkan, we have such a possibility. When creating a swapchain, we need to specify the transformation which should be applied to an image before it is presented.

How to do it...

1. Acquire the capabilities of a presentation surface (refer to the Getting capabilities of a presentation surface recipe). Store them in a variable of type VkSurfaceCapabilitiesKHR named surface_capabilities.
2. Store the desired transformations in a bit field variable of type VkSurfaceTransformFlagBitsKHR named desired_transform.
3. Create a variable of type VkSurfaceTransformFlagBitsKHR named surface_transform in which we will store the supported transformation.
4. Check whether all bits set in the desired_transform variable are also set in the supportedTransforms member of the presentation...