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/PHP_TRUNK/ext/gd/libgd/
H A Dgd_interpolation.c484 #define KM_C (1.0f/3.0f) macro
486 #define KM_P2 ((-18.0f + 12.0f * KM_B + 6.0f * KM_C) / 6.0f)
487 #define KM_P3 (( 12.0f - 9.0f * KM_B - 6.0f * KM_C) / 6.0f)
488 #define KM_Q0 (( 8.0f * KM_B + 24.0f * KM_C) / 6.0f)
489 #define KM_Q1 ((-12.0f * KM_B - 48.0f * KM_C) / 6.0f)
490 #define KM_Q2 (( 6.0f * KM_B + 30.0f * KM_C) / 6.0f)
491 #define KM_Q3 (( -1.0f * KM_B - 6.0f * KM_C) / 6.0f)

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