Log ext lib build steps to provide user feedback.
Add package_ext_libs_finish.sh script to separate packaging
libraries from building them, to avoid build database conflicts.
Travis only build macOS ext libs.
Create fat builds of static, dynamic & framework libraries if both iOS
and simulator versions have been created from separate manual Xcode builds.
Refactor scripts for creating fat libraries to reuse across projects.
Add MVK_BUILT_PROD_DIR to replace use of BUILT_PRODUCTS_DIR in most scripts
to allow flexibility across per-platform compilation.
Create fat builds of external libraries if both iOS and simulator versions
have been created from separate manual Xcode builds.
Add Scripts/create_fat_libs.sh.
Remove Scripts/package_ext_libs_ios.sh and Scripts/package_ext_libs_macos.sh.
We only support the `robustImageAccess2` feature for now. Metal's
guarantees around out-of-bounds accesses to textures give us this for
free. `nullDescriptor` should also be possible to implement, but it
needs testing. Null image descriptors will probably just work, but null
buffer pointers probably not. We may need help, either from SPIRV-Cross
or a pass in SPIRV-Tools. `robustBufferAccess2` definitely needs an
assist from SPIRV-Tools. All three are useful for Direct3D compatibility
layers (DXVK, wined3d).
Currently, when a mapping is initiated for host-coherent device memory, existing
image contents are copied from the MTLTexture to host memory. However, if
host-coherent device memory is already mapped in a long-standing memory mapping,
changes to MTLTexture content are not reflected to the host memory.
This change adds that capability to open memory mappings. When the image pipeline
barrier is applied to an image that is attached to a host-coherent device memory
that currently has an open memory mapping, the MTLTexture contents are copied to
the open host memory binding.
Add MVKMappedMemoryRange to retrieve the currently mapped range in an MVKDeviceMemory.
MVKImage cleanup use of isHostCoherent(). Let it be same as MVKDeviceMemory
and don't test for it from macOS because it is unnecessary.
Mark MVKResource::bindDeviceMemory() as virtual.
Remove use of !! from mvkIsAnyFlagEnabled().
Update What's New document for VK_KHR_sampler_ycbcr_conversion.
