All Apple GPUs support this, as does Mac GPU family 2. With this, we can
avoid expensive copies between buffers and textures allocated from the
same memory, and reduce memory usage to boot.
macOS is, unfortunately, constrained by the fact that `MTLHeap` objects
do not support any storage mode other than `MTLStorageModePrivate`--not
even `MTLStorageModeManaged`. This won't help for managed textures
there. Perhaps Apple will fix this in a later version.
The old `DCI_P3_LINEAR` enum is deprecated. Use
`VK_COLOR_SPACE_DISPLAY_P3_LINEAR_EXT` instead. This is a closer match
for the Core Graphics name anyhow.
Set the `opaque` property of the `CAMetalLayer` based on this. In the
past, we did nothing; this actually corresponds to
`VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR`.
Drop support for premultiplied alpha. In Core Animation, this is managed
by the `contents` of the layer. Most layers use a `CGImage` or an
`NSImage` for their contents; the `AlphaInfo` property of a `CGImage`
determines whether or not it uses premultiplied alpha. However,
`CAMetalLayer` doesn't use a `CGImage`, but a custom opaque Core
Foundation object which ostensibly vends images to be displayed by the
layer. I don't know which kind of alpha it uses, but since most
applications render postmultiplied colors I'm going to assume that
premultiplied alpha isn't supported yet.
Add MVKEvent class. MVKEventNative subclass uses native MTLEvent. MVKEventEmulated
subclass uses emulation using CPU blocking and MTLCommandBuffer completion handling.
MVKConfiguration::synchronousQueueSubmits now disabled by default if MTLEvents are not supported.
Document updated use of MVK_ALLOW_METAL_EVENTS and MVK_CONFIG_SYNCHRONOUS_QUEUE_SUBMITS
environment variables and synchronousQueueSubmits config setting, in vk_mvk_moltenvk.h.
When available, use it instead of doing it manually in the shaders.
Unfortunately, it's only available on Apple GPU family 4 and up, and
desktop GPU family 2. Should still provide a nice boost.
Mac-only for now. Mostly because I don't know which formats beyond DXTn
and ASTC support 3D textures. Also, the extension to support 3D ASTC
compression isn't ready yet.
This extension requires macOS 10.15. For some reason, even though
Apple said that the new Apple TV supports HDR10 and DolbyVision, the
`CAEDRMetadata` type underlying this is not supported on either iOS or
tvOS.
Also set the `wantsExtendedDynamicRangeContent` property on macOS to
enable HDR output. It's not only set if HDR metadata is attached, but
also if an HDR color space is selected.
MVKDevice check highest queue family index before expanding queue family collection.
MVKVector add bounds check to at(), [], front() & back() functions.
MVKDispatchableVulkanAPIObject::getVkHandle() re-establishes the loader magic number
before returning, in case the loader overwrote it before returning the object.
Update to latest external dependency libraries.
Rename components of VK_INTEL_shader_integer_functions2 to match 1.1.114 Vulkan spec.
Update What's New document.
Remove the descriptor set pool associated with a MVKDescriptorSetLayout when the layout
is destroyed. MVKDescriptorPool and MVKDescriptorSetLayout track each other to tell the
other when it has been destroyed.
This is the instance half of device-group support. This provides the
means to enumerate all known physical device groups, and to create
grouped logical devices.
This provides just enough to satisfy the Vulkan spec. Metal won't
support this fully until Metal 3.0 in the upcoming macOS 10.15.
