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tweak of the 5*, 1+ and 5- computation of the four Catmull-Rom weights

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Nicolas Robidoux 2010-06-10 19:54:27 +00:00
parent 736836a099
commit 3545786e81
1 changed files with 2 additions and 2 deletions
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libvips/resample/templates.h
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@ -256,8 +256,8 @@ calculate_coefficients_catmull( const double x, double c[4] )
const double cone = cr1 * cr3;
const double cfou = x * cr3;
const double cr4 = cfou - cone;
const double ctwo = cr4 + cr1 - cone;
const double cthr = x - cr4 - cfou;
const double ctwo = cr1 - cone + cr4;
const double cthr = x - cfou - cr4;
g_assert( x >= 0. && x <= 1. );