Lines Matching defs:f_a
77 * @f_a: Sharpness factor, typically in range [-4.0, -0.25].
89 static inline s32 cubic_conv(s32 f_a, s32 f_x)
99 return FMUL((f_a + f_2), f_x3) - FMUL((f_a + f_3), f_x2) + f_1;
101 return FMUL(f_a, (f_x3 - 5 * f_x2 + 8 * f_x - f_4));
138 const s32 f_a = SHARPNESS_INCR * sharpness;
148 w0 = F2I(f_h + 512 * cubic_conv(f_a, I2F(512 + weight) / 512));
149 w1 = F2I(f_h + 512 * cubic_conv(f_a, I2F(0 + weight) / 512));
150 w2 = F2I(f_h + 512 * cubic_conv(f_a, I2F(512 - weight) / 512));
151 w3 = F2I(f_h + 512 * cubic_conv(f_a, I2F(1024 - weight) / 512));