tree d6d7c184b339cde87cdc91816f394233823b6cfd
parent b74040a93d9b5b9f139a9860cb6e277ac8420b3a
author Bill Hollings <bill.hollings@brenwill.com> 1623250390 -0400
committer Bill Hollings <bill.hollings@brenwill.com> 1623250390 -0400

Reorganize coherent texture flushing on memory map and unmap.

MVKDeviceMemory track original Vulkan memory coherency request, not just Metal
coherency status.

MVKDeviceMemory map() and unmap() only triggers host flush if coherent Vulkan memory
was requested, not just when Metal memory is coherent, because this can be changed
for dedicated image resources.

Redesign MVKDeviceMemory flushToDevice() and pullFromDevice()
to be consistent operation with each other.

Don't trigger automatic texture flush during vkCmdCopyImage(), as it can
cause an unexpected update from mapped memory, resulting in a race condition.