RFR: 8320563: Remove D3D9 code paths in favor of D3D9Ex

[Kevin Rushforth]

On Tue, 23 Apr 2024 10:33:58 GMT, Lukasz Kostyra <lkostyra at openjdk.org> wrote:

> JFX minimum requirements guarantee 9Ex availability, so old non-Ex paths are no longer needed.
> 
> In multiple parts (ex. Mesh, Graphics, etc.) where the Device is acquired I changed the type to explicitly use `IDirect3DDevice9Ex`. Technically it doesn't matter much (`IDirect3DDevice9Ex` inherits `IDirect3DDevice` - it was leveraged to transparently use the Ex device in the backend) but now we don't have the non-Ex device, so that keeps it a bit more consistent and clear IMO.
> 
> Verified by running tests on Windows 11, did not notice any regressions. Unfortunately I have no way to test this on older systems.

Good to hear.

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PR Comment: https://git.openjdk.org/jfx/pull/1445#issuecomment-2077410544