Re: [PATCH v21 0/4] MR346: tests/shader-runner: Test DXIL shaders.

[Zebediah Figura (＠zfigura)]

Zebediah Figura (@zfigura) commented about tests/dxcompiler.idl:
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> +/* The linux build of dxcompiler does not apply the ms_abi calling convention to its COM interfaces,
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> - so they default to sysv_abi. The '__stdcall' macro is set in vkd3d_windows.h to ms_abi, and widl
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> - emits STDMETHODCALLTYPE for COM interfaces, so '__stdcall' must be temporarily undefined. Doing
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> - this in a PE build (x86 or x64) is unnecessary since the default calling convention is identical.
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> - A 32-bit linux release of dxcompiler is not available.
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> - TODO: modily widl to optionally omit STDMETHODCALLTYPE? */
>
> +cpp_quote("#if defined(__x86_64__) && !defined(_WIN32)")
> +cpp_quote("# pragma push_macro("__stdcall")")
> +cpp_quote("# undef __stdcall")
> +cpp_quote("# define __stdcall")
> +cpp_quote("#endif")
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>
> +static const HRESULT DXC_E_LLVM_CAST_ERROR = 0x80aa001d;
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> +cpp_quote("DEFINE_GUID(CLSID_DxcCompiler, 0x73e22d93, 0xe6ce, 0x47f3, 0xb5, 0xbf, 0xf0, 0x66, 0x4f, 0x39, 0xc1, 0xb0);")

This is an IDL, so we can do this with a "coclass" block.