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2021-04-09Include eggs' smoothness edits to drowsnug's upscalerneonloop
2021-04-02Adds a "smooth subpixel" upscalerneonloop
Thanks to drowsnug for the original implementation of a subpixel scaler. This scaler uses the core of that one, but smooths the transition in the new pixels added during scaling. If you think of the scaler as 4x integer scaling of the GBA screen, and assigning each of those pixels to a subpixel, each subpixel takes the value of 50% the pixel assigned, 25% of the pixel to its left, and 25% of the pixel to its right. With the pixels: BGRBGRBGRBGR AAAABBBBCCCC ^--- this subpixel will be 1/4 A[G] + 1/2 B[G] + 1/4 B[G] The first and last pixels in each batch are not blended with the previous / next batch to keep them sharp.
2021-03-21Adds a libpicofe frontend and menusneonloop
Implements: - fast-forward (toggle) - audio-buffer-based frameskip and frame limiting - color-correction (using the libretro code) - lcd ghosting (using the libretro code) - FPS display - input rebinding - emulator key rebinding - scaling (with the old gpsp filters and drowsnug's scaled-nofilter) - saving and savestates - game-specific configuration Not yet implemented: - cheats - fast-forward (hold)