1cb93a386Sopenharmony_ciuniform half4 colorWhite, colorGreen, colorRed;
2cb93a386Sopenharmony_ci
3cb93a386Sopenharmony_cihalf4 main(float2 coords) {
4cb93a386Sopenharmony_ci    half2 x = colorWhite.rg;
5cb93a386Sopenharmony_ci    x = +x;
6cb93a386Sopenharmony_ci    x = -x;
7cb93a386Sopenharmony_ci    return x == half2(-1) ? colorGreen : colorRed;
8cb93a386Sopenharmony_ci}
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