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/PHP-5.6/ext/gd/libgd/
H A Dgd_matrix.c62 double r_det = (src[0] * src[3] - src[1] * src[2]); in gdAffineInvert() local
64 if (r_det <= 0.0) { in gdAffineInvert()
68 r_det = 1.0 / r_det; in gdAffineInvert()
69 dst[0] = src[3] * r_det; in gdAffineInvert()
70 dst[1] = -src[1] * r_det; in gdAffineInvert()
71 dst[2] = -src[2] * r_det; in gdAffineInvert()
72 dst[3] = src[0] * r_det; in gdAffineInvert()

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