vpass_full()

template<int R, typename RGB_T, typename acc_t, bool ApplyAlpha, typename AlphaT>

static void fl::gfx::blur_detail::vpass_full ( RGB_T * pixels, int w, int h, RGB_T * scratch, AlphaT alpha )

static

Definition at line 1088 of file blur.cpp.hpp.

                                                                                  {
#if defined(FL_IS_AVR)
    // AVR: column-by-column with per-channel noinline + O3.
    FL_BUILTIN_MEMSET(scratch, 0, R * sizeof(RGB_T));
    FL_BUILTIN_MEMSET(scratch + R + h, 0, R * sizeof(RGB_T));
 
    for (int x = 0; x < w; ++x) {
        // Linearize column into padded region.
        {
            const RGB_T *src = pixels + x;
            RGB_T *dst = scratch + R;
            for (int i = 0; i < h; ++i) {
                *dst++ = *src;
                src += w;
            }
        }
        if (ApplyAlpha)
            apply_pass_alpha_1ch<R>(scratch, pixels + x, h, w, alpha);
        else
            apply_pass_1ch<R>(scratch, pixels + x, h, w);
    }
#else
    // Non-AVR: row-major vertical pass for cache efficiency.
    // Direct R=2 V-pass using exact [1,4,6,4,1] kernel (no cascaded R=1).
    if (ApplyAlpha) {
        vpass_rowmajor_impl<R, RGB_T, acc_t, true>(
            pixels, w, h, scratch, alpha);
    } else {
        vpass_rowmajor_impl<R, RGB_T, acc_t, false>(
            pixels, w, h, scratch, alpha);
    }
#endif
}

References FL_BUILTIN_MEMSET, vpass_rowmajor_impl(), and fl::x.

Referenced by fl::gfx::blurGaussianImpl().

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