test/scanTest1.c


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#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <math.h>

typedef struct Color {
    unsigned char r;
    unsigned char g;
    unsigned char b;
    unsigned char a;
} Color;

Color lineScanner(uint16_t x, uint16_t y, uint32_t frameNumber)
{
    uint8_t c = 0;

    if (frameNumber % 255 >= 127)
    {
        c =  (x >> 8) + (uint8_t)(hypot(x >> 9, y >> 9) * (frameNumber % 255));
    } else {
        c =  (x >> 8) + (uint8_t)(hypot(cos(x >> 9), sin(y >> 9)) * (frameNumber % 255));
    }
    
    return (Color){
        .r = (uint8_t)(sin(c) * 127),
        .g = c - 127,
        .b = c,
        .a = 255
    };
}