This change introduces a new chunk type to material files for precompiled Metal libraries. Previously, SPIR-V was the only binary type, so there's also a couple of refactor commits present here. Nothing is changed in Filament or matc yet.
BUGS=[333547148]
Since we are still on Vulkan 1.0, we cannot use SPIR-V 1.3.
If we try to do so, this error is generated:
Invalid SPIR-V binary version 1.3 for target environment SPIR-V 1.0
In non-optimized builds, we were already generating spirv 1.0, but
when we enabled the shader optimizer, we generated spirv 1.3.
This bug has actually been around forever, but we did not notice because
we were only invoking the optimizer in release builds, which does not
enable validation.
We cannot upgrade Vulkan 1.1 because the latest LunarG SDK for macOS
does not support it.
The value we pass to spvContextCreate() is not SPV_ENV_UNIVERSAL_1_3,
which is what we use in GLSLPostProcessor.
Also add a call to spvValidateBinary(), which would have caught this
oversight.
This change adds new commands to matinfo to print dictionaries.
This feature is useful to debug dictionaries, and I just used
it to identify that using a shared dictionary would save ~12 KiB
in the Android build. The macOS build (GLSL + Metal) would go
down to 71 KiB from 136 KiB.
The SPIRV to Metal conversion leaves leading spaces and some
comments. This change also runs the shrinker on optimized Metal
shaders to further reduce the size of shaders.
This performs surgical modification of the IFF chunks rather than
invoking filamat from within matdbg. Low-level direct manipulation
(bypassing optimization passes etc) allows us to diagnose issues with
the shading pipeline.
This CL also adds keystroke bindings to the Monaco editor. You can
press Cmd+S to rebuild the current materials, or use Ctrl+Arrow to
navigate between shader variants and materials.
In a subsequent CL I will add a README that describes how this works in
detail, it will include a list of limitations and a feature wishlist.
