Do you plan to add other upscaling algorithms?

[sapioit]

For example, Lanczos, Anime4K, and maybe the other upscaling methods supported by the Magpie app. Even if they don't offer graphics as good as those of FSR, or that much better performance compared to native, they might have their use-case on older/weaker hardware (especially running on integrated graphics / APU only).

Lanczos：常见的传统插值算法，善于保留锐利的边缘。
FSR：FidelityFX-FSR 的移植，适合缩放 3D 游戏。
FSRCNNX：FSRCNNX 的移植。
ACNet：ACNetGLSL的移植。适合动画风格的图像和视频放大。
Anime4K：Anime4K 的移植。此预置使用 Anime4K_Upscale_Denoise_L 变体。
CRT-Geom：最流行的 CRT 滤镜之一，推荐自行配置参数。见 Emulation General Wiki。
Integer Scale：将每个像素放大整数倍，可以完整保留原图像的视觉效果。预置了2x和3x两种放大倍率。

https://github.com/Blinue/Magpie/

Edit: There's an Anime4kCPP repo on Github: https://github.com/TianZerL/Anime4KCPP
Edit2: There is an LanczosPlusPlus repo on Github: https://github.com/g1257/LanczosPlusPlus