Update Sirit and its usage in vk_shader_decompiler. Highlights:
- Implement tessellation shaders
- Implement geometry shaders
- Implement some missing features
- Use native half float instructions when available.
Since the introduction of this library, numerous improvements have been
made. Notably, many of the warnings we would get by simply including the
library header have now been fixed. This makes it much easier to make
conversion warning an error.
Stops relying on a fork for providing zip handling and instead tracks
the upstream branch but keeps any necessary build-related changes in the
source tree directly without modifying the libzip target itself.
Tracks upstream opus, allowing the library to be easily updated. While
we're at it, we incorporate the CMakeLists.txt so that we have easy
control over the requirements of the build.
We don't need to depend on a custom fork for this. We can add the
library as is, and then make it excluded from the ALL target, so we only
link in the libraries that we actually make use of.
Fix missing OpSelectionMerge instruction. This caused devices loses on
most hardware, Intel didn't care.
Fix [-1;1] -> [0;1] depth conversions.
Conditionally use VK_EXT_scalar_block_layout. This allows us to use
non-std140 layouts on UBOs.
Update external Vulkan headers.
Now that we have an OpenGL compatibility profile we might want to use
OpenGL compatibility symbols that are not available in our current glad.
This commit has been generated with https://glad.dav1d.de/ with all
extensions enabled and OpenGL 4.6 compatibility profile.
Xbyak is currently entirely unused. Rather than carting it along, remove
it and get rid of a dependency. If it's ever needed in the future, then
it can be re-added (and likely be more up to date at that point in
time).