Function sam3_layer_norm_2d

sam3.cpp:1053–1065

}

static struct ggml_tensor* sam3_layer_norm_2d(struct ggml_context* ctx,
                                              struct ggml_tensor* x,
                                              struct ggml_tensor* w,
                                              struct ggml_tensor* b) {
    // x is [C, H, W, B] in ggml layout — norm over C dimension (dim 0)
    x = ggml_norm(ctx, x, 1e-6f);
    // w, b are [C, 1, 1] — broadcast multiply/add
    x = ggml_mul_inplace(ctx, x, w);
    if (b) {
        x = ggml_add_inplace(ctx, x, b);
    }
    return x;
}

// Read tensor data from backend into a float buffer, handling F32, F16, and
// quantized types.  n = number of float elements to produce.