Based on a patch by Stefan Dösinger.
Metal cannot do signedness conversion on vertex attributes, and for good
reason. Putting a `uint4` into an `int4`, or a `char4` into a `uint4`,
would lose those values that are outside the range of the target type.
But putting a `uchar4` into a `short4` or an `int4`, or a `ushort4` into
an `int4`, should work. In that case, force the signedness in the shader
to match the declared type of the host.
Update SPIRV-Cross to pull in the corresponding change. Bump MoltenVK
version.
The swizzles are passed to shaders that need them using an "auxiliary
buffer", for which there must be room in the function argument table.
Code is inserted into the shaders to swizzle reads from sampled
textures--per the Vulkan spec, component mappings must only be applied
to sampled images.
Update SPIRV-Cross to pull in some fixes for handling swizzled image
data. Bump MoltenVK version.
Add SPIRVToMSLConverterOptions::isRasterizationDisabled to allow pipeline
and vertex shader to communicate rasterization status.
Update to latest SPIRV-Cross version.
Update MoltenVK version to 1.0.17.
Support separate specialization for each workgroup dimension.
Support zero as a specialization ID value.
Cleanup MoltenVKShaderConverterTool.
Update to latest SPIRV-Cross version.
Update MoltenVK version to 1.0.14.
Map 1D buffer view contents to 2D Metal texture.
Add MVKPhysicalDeviceMetalFeatures::maxTextureDimension element.
Set VkPhysicalDeviceLimits::maxTexelBufferElements to maxTextureDimension ^ 2.
Shaders accessing buffer view use special function to map 1D buffer view coordinates
to 2D Metal texture coordinates.
Pass maxTextureDimension to shader.
Update to latest SPIRV-Cross version for appropriate shaders.
Update MoltenVK version to 1.0.13.
Dynamically create frag shaders for clearning attachments and images.
Dynamically create frag shaders for blitting scaled images.
MVKGraphicsPipeline don't create MTLRenderPipelineState if vertex function conversion fails.
MVKComputePipeline don't create MTLComputePipelineState if compute function conversion fails.
Handle SPIRV-Cross errors thrown during SPIR-V parsing in compiler construction.
Set undefined property limits to large, but not max, values to avoid casting issues in app.
Mark multiDrawIndirect features as available.
Update to latest SPIRV-Cross version.
Update to MoltenVK version 1.0.5.
Fix OOM conditions with multiple consecutive two-vector OpVectorShuffles.
Support non-square row-major matrix conversions.
Add ability to write SPIR-V to file for debugging purposes.
Update ThirdPartyConfig.md to latest use of SPIRV-Cross testability.
Update to latest SPIRV-Cross version.
Improved extraction of entry point name and workgroup size from SPIR-V.
Consolidate to a single ThirdPartyConfig.md document.
MSL enhancements to nested function use of globals.
Support customizing MSL based on iOS or macOS platform.
MSL threadgroup barrier memory scope only on iOS MSL 2.0.
Update to latest SPIRV libraries.
