Copying data from a buffer to an image

For images, we can bind memory objects that are allocated from different memory types. Only host-visible memory can be mapped and updated directly from our application. When we want to update the memory of an image that uses a device-local memory, we need to copy data from a buffer.

How to do it...

1. Take the handle of a command buffer and store it in a variable of type VkCommandBuffer named command_buffer. Make sure the command buffer is already in a recording state (refer to the Beginning a command buffer recording operation recipe from Chapter 3, Command Buffers and Synchronization).
2. Take a buffer from which data will be copied. Store its handle in a variable of type VkBuffer named source_buffer.

 

3. Take the image to which data will be copied. Represent this image with a variable of type VkImage named destination_image.
4. Create a variable of type VkImageLayout named image_layout, in which the image's current layout will be stored.
5. Create a variable of type...