[PATCH v2 0/4] MR7577: d3dx9: Implement D3DXSaveVolumeToFile{A,W,InMemory}().

[Connor McAdams (＠cmcadams)]

After this there is one more set of patches to finish up the file saving functions, I split it into two to hopefully make it easier to review. :)

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  v2: d3dx9: Use D3DXSaveVolumeToFileInMemory() inside of D3DXSaveTextureToFileInMemory().
      d3dx9: Implement D3DXSaveVolumeToFile{A,W,InMemory}().
      d3dx9/tests: Add tests for D3DXSaveVolumeToFile{A,W,InMemory}().
      d3dx9: Add stubs for D3DXSaveVolumeToFile{A,W,InMemory}().
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7577