Support runtime shader compilation from GLSL.
Return VK_ERROR_INVALID_SHADER_NV on shader and pipeline compilation errors.
Add MVKShaderCompilationPerformance::glslToSPRIV to track GLSL conversion performance.
Rename MoltenVKGLSLToSPIRVConverter MVKShaderStage enum to MVKGLSLConversionShaderStage
to avoid naming conflicts with MoltenVK MVKShaderStage enum.
Hologram demo load SPIR-V directly instead of using GLSL through either
MoltenVKGLSLToSPIRVConverter or VK_NV_glsl_shader extension.
Update to latest version of VulkanSamples that supports MVKGLSLConversionShaderStage.
Add SPIRVToMSLConverterOptions::platform to track platform. Default to build platform.
Update default SPIRVToMSLConverterOptions MSL version to 2.1.
MoltenVKShaderConverter test MSL compilation use same MSL version as conversion.
Default min perf tracking value to 0.0.
SPIRVToMSLConverter.h reference spirv.hpp via SPIRV-Cross framework.
Update What's New document.
At long last, tessellation comes to MoltenVK! With this change, clients
will now be able to specify tessellation shaders when creating
pipelines, and then draw tessellated patches with them.
Unfortunately, there seem to be a few gotchas with tessellation in
Metal. For one thing, tessellation pipelines in Metal are structured
very differently from Vulkan. There is no tessellation control or even
vertex stage. Instead, the tessellation evaluation shader takes the
place of the vertex function as a "post-tessellation vertex function."
The tessellation levels are supplied in a buffer to the tessellator,
which you are expected to populate. The most common way to do this is by
running a compute shader. MoltenVK thus runs the vertex shader and
tessellation control shader by themselves; a single `VkPipeline` object
then requires at least *three* `MTLPipelineState` objects.
But wait, there's more! The tessellation-control-as-compute stage uses
Metal's support for vertex-style stage input to a compute shader. But,
this support requires one to declare indexing *ahead of time*, when the
pipeline state is created. So a single `VkPipeline` object could have as
many as *five* `MTLPipelineState` objects.
Further, if there are more output than input control points for the
tessellation control stage, then later invocations may end up fetching
the wrong attributes! To get around this, this change uses index buffers
to ensure that all tessellation control shaders see the correct input.
Unfortunately, in the indexed draw case, this means that the incoming
index buffer needs to be munged.
Instancing is another pain point here. In Vulkan, as in OpenGL and
Direct3D, instancing is done in the vertex shader; but in Metal, it is
done at the tessellation evaluation stage. For this reason, only the
vertex stage of a tessellated draw supports instancing. Additional
memory is required to hold data for the extra vertices generated by
instancing. This also requires still more munging of index buffers for
indexed draws.
Indirect draws are even more painful. Because the number of vertices and
instances is unknown, storage for the maximum possible number of
vertices must be allocated. This change imposes a totally arbitrary
limit of 131072 vertices from a single draw, including all vertices
generated by instancing. On a Mac, this requires about 194-256 MB of
VRAM for all the temporary buffers.
There are some possible optimizations here. If we could prove that the
vertex shader's output doesn't depend on the instance ID, either
directly or through a per-instance attribute, then we could avoid
running the vertex and tess. control stages per instance, and take
advantage of Metal's support for tess. eval instancing. If we could
also prove that the vertex shader simply passes instance attributes
through (similarly with the tess. control shader), we could do this for
many more instanced draws as well. It should also be possible to cache
the output from the tess. control stage; if the draw comes up again, we
can then skip the vertex and tess. control stages entirely!
Fixes#56 and #501.
Refactor build scripts.
Update paths to MoltenVKGLSLToSPIRVConverter framework in demos.
Fix rare build race condition on MoltenVKShaderConverter link to MoltenVK.
Add MVKConfiguration::fullTextureSwizzle and corresponding MVK_CONFIG_FULL_TEXTURE_SWIZZLE
env var & build setting, and set to false, to disable texture swizzling by default.
Add SPIRVToMSLConverterOptions::shouldSwizzleTextureSamples.
Lazily init queue families to allow time for specializedQueueFamilies config change.
Fix consistency of pipeline encoding state auxiliary buffer binding.
Improve documentation of MVKConfiguration environment variables and build settings.
Add separate ExternalDependencies Xcode project.
Move external dependencies to ExternalDependencies project.
The fetchDependencies script builds external dependencies libraries into External/build.
The fetchDependencies script prepares SPIRV-Tools without preparing glslang.
MoltenVK links to pre-built external dependency static libraries.
MoltenVK includes external library headers using full relative paths.
For each GPU, log MSL version and updated list of feature sets.
Add SPIRVToMSLConverterOptions::printMSLVersion() function.
Update to latest SPIRV-Cross version.
Update MoltenVK version to 1.0.29.
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.
