1cb93a386Sopenharmony_ci
2cb93a386Sopenharmony_cifloat _determinant2(mat2 m) {    return m[0][0] * m[1][1] - m[0][1] * m[1][0];}out vec4 sk_FragColor;
3cb93a386Sopenharmony_ciuniform mat2 testMatrix2x2;
4cb93a386Sopenharmony_ciuniform vec4 colorGreen;
5cb93a386Sopenharmony_ciuniform vec4 colorRed;
6cb93a386Sopenharmony_civec4 main() {
7cb93a386Sopenharmony_ci    return _determinant2(testMatrix2x2) == -2.0 ? colorGreen : colorRed;
8cb93a386Sopenharmony_ci}
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