FL_ALIGNAS() [1/5]

struct fl::FL_ALIGNAS

(

16

)

Combined sin+cos result for 4 angles (raw SIMD primitives)

Definition at line 1 of file chasing_spiral_state.h.

                                         {
    // SoA pixel geometry — built once when grid size changes, reused every frame.
    // Each array has `count` valid entries, padded to the next multiple of 4
    // (so SIMD loads never read past the allocation).
    fl::vector<fl::i32> base_angle;    // 3*theta - dist/3, raw s16x16
    fl::vector<fl::i32> dist_scaled;   // distance * 0.1, raw s16x16
    fl::vector<fl::i32> rf3;           // 3 * radial_filter, raw s16x16 (red)
    fl::vector<fl::i32> rf_half;       // radial_filter / 2, raw s16x16 (green)
    fl::vector<fl::i32> rf_quarter;    // radial_filter / 4, raw s16x16 (blue)
    fl::vector<fl::u16> pixel_idx;     // pre-mapped xyMap(x,y) LED index
    int count = 0;
 
    // Perlin fade LUT (257 entries, Q8.24 format).
    // FL_ALIGNAS(16): enables aligned SIMD loads in pnoise2d_raw_simd4_vec.
    FL_ALIGNAS(16) fl::i32 fade_lut[257];
    bool fade_lut_initialized = false;
 
    ChasingSpiralState() : fade_lut{}, fade_lut_initialized(false) {}
};

References FL_ALIGNAS(), and FL_ALIGNAS.

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