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/PHP-5.5/ext/gd/libgd/
H A Dgd.c944 float p_dist, p_alpha; in gdImageAntiAliasedApply() local
978 p_dist = fabs ((float) ((Ay_Cy * im->AAL_Bx_Ax) - (Ax_Cx * im->AAL_By_Ay)) / im->AAL_LAB); in gdImageAntiAliasedApply()
984 p_dist = -1; in gdImageAntiAliasedApply()
987 if ((p_dist >= 0) && (p_dist <= (float) (im->thick))) { in gdImageAntiAliasedApply()
988 p_alpha = pow (1.0 - (p_dist / 1.5), 2); in gdImageAntiAliasedApply()

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