static void normalize_equirectangular()

in Transform360/Library/VideoFrameTransform.cpp [109:134]

• 22 lines of code
• 5 McCabe index (conditional complexity)

static void normalize_equirectangular(
    float x,
    float y,
    float *xout,
    float *yout) {
    if (y >= 1.0f) {
        // Example: y = 1.25 ; 2.0 - 1.25 = 0.75.
        y = 2.0f - y;
        x += 0.5f;
    } else if (y < 0.0f) {
        y = -y;
        x += 0.5f;
    }

    if (x >= 1.0f) {
        int ipart = (int) x;
        x -= ipart;
    } else if (x < 0.0f) {
        // Example: x = -1.25.  ipart = 1. x += 2 so x = 0.25.
        int ipart = (int) (-x);
        x += (ipart + 1);
    }

    *xout = x;
    *yout = y;
}