Function dither_adjust

server/tft_gif_core.py:117–121

(source: int, x: int, y: int, settings: ConvertSettings)

def dither_adjust(source: int, x: int, y: int, settings: ConvertSettings) -> int:
    if settings.dither_mode != "ordered":
        return source
    threshold = ORDERED_4X4[y & 3][x & 3] - 8
    return clamp(source + threshold * 5, 0, 255)


def convert_frame(frame: Image.Image, settings: ConvertSettings) -> list[tuple[int, int, int]]: