Lines Matching refs:n2
2562 const int n2 = n >> 1;
2570 for (i = 0; i < n2; i+=2) {
2586 for (i = n4; i < n2; i ++) {
2587 out[i - n4] = buf[n2 - 1 - i] * window[i - n4] +
2588 saved[ i + n2] * window[i + n - n4] +
2589 -saved[ n + n2 - 1 - i] * window[i + 2*n - n4] +
2590 -saved[2*n + n2 + i] * window[i + 3*n - n4];
2592 for (i = 0; i < n2; i ++) {
2593 out[n4 + i] = buf[i] * window[i + n2 - n4] +
2594 -saved[ n - 1 - i] * window[i + n2 + n - n4] +
2595 -saved[ n + i] * window[i + n2 + 2*n - n4] +
2596 saved[2*n + n - 1 - i] * window[i + n2 + 3*n - n4];
2599 out[n2 + n4 + i] = buf[ i + n2] * window[i + n - n4] +
2600 -saved[ n2 - 1 - i] * window[i + 2*n - n4] +
2601 -saved[ n + n2 + i] * window[i + 3*n - n4];