As @nsivov pointed out, we are currently parsing matrix swizzles (e.g. mat._m12_m32) and creating an hlsl_ir_swizzle for the matrix itself. We are currently allowing shaders that use these to compile even though they are not working.
While our compilation passes don't expect hlsl_ir_swizzles with matrix values, turns out we need them as a parse-time construct because we don't know if they will be used as the lhs of an assignment during parsing, similarly to hlsl_ir_indexes.
This patch adds tests and a pass to lower these matrix swizzles.
Implementing assignments with matrix swizzles is still pending.
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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/331
This patch set is part of !3303
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v3: winegstreamer: Create wg_muxer for media sink.
winegstreamer: Implement seeking query for wg_muxer sink pad.
winegstreamer: Introduce new wg_muxer struct.
https://gitlab.winehq.org/wine/wine/-/merge_requests/3737