sincos()

FASTLED_FORCE_INLINE void fl::s16x16x4::sincos ( s16x16x4 & out_sin, s16x16x4 & out_cos ) const

inline

Compute sin and cos of 4 angles (in radians) Results written to out_sin and out_cos.

Definition at line 118 of file s16x16x4.h.

                                                                                 {
        // Convert radians to 24-bit angle units (same as scalar s16x16)
        // RAD_TO_24 = 2^24 / (2π) in Q16
        static constexpr i32 RAD_TO_24 = 2670177;  // from s16x16.h
 
        // Convert 4 angles: mulhi_i32_4 does (i64*i64) >> 16
        auto angles_u32 = simd::mulhi_su32_4(raw, simd::set1_u32_4(static_cast<u32>(RAD_TO_24)));
 
        // Call vectorized sincos
        auto sc = sincos32_simd(angles_u32);
 
        // Shift results right by 15 to convert from raw sin32 output to Q16.16
        out_sin = from_raw(simd::sra_i32_4(sc.sin_vals, 15));
        out_cos = from_raw(simd::sra_i32_4(sc.cos_vals, 15));
    }

References FASTLED_FORCE_INLINE, and raw.

Referenced by cos(), and sin().

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