Anti-Aliasing, Filtering Options, and Displaying the Exact Resolution with Render Scale

[TGP482]

Feature Request

Emulators like Dolphin and PCSX2 display the exact resolution when using the render scale feature, making it clear what the resolution is being increased to. It would be great if Xemu had the same functionality.

Dolphin supports anti-aliasing techniques like MSAA, SSAA, and FXAA which Xemu lacks.

PCSX2 and Dolphin allow you to choose from a variety of filtering options, including standard bilinear and bilinear sharp, among others. It would be great to see similar options in Xemu. Notably, PCSX2 also includes a feature that applies bilinear filtering to 2D elements like the HUD, which helps smooth them out when rendering at higher resolutions so they appear less pixilated.