// right shift and rounding
static INLINE void right_shift_8x8(__m128i *res, int const bit) {
+ const __m128i kOne = _mm_set1_epi16(1);
+ const int bit_m02 = bit - 2;
__m128i sign0 = _mm_srai_epi16(res[0], 15);
__m128i sign1 = _mm_srai_epi16(res[1], 15);
__m128i sign2 = _mm_srai_epi16(res[2], 15);
__m128i sign6 = _mm_srai_epi16(res[6], 15);
__m128i sign7 = _mm_srai_epi16(res[7], 15);
+ if (bit_m02 >= 0) {
+ __m128i k_const_rounding = _mm_slli_epi16(kOne, bit_m02);
+ res[0] = _mm_add_epi16(res[0], k_const_rounding);
+ res[1] = _mm_add_epi16(res[1], k_const_rounding);
+ res[2] = _mm_add_epi16(res[2], k_const_rounding);
+ res[3] = _mm_add_epi16(res[3], k_const_rounding);
+ res[4] = _mm_add_epi16(res[4], k_const_rounding);
+ res[5] = _mm_add_epi16(res[5], k_const_rounding);
+ res[6] = _mm_add_epi16(res[6], k_const_rounding);
+ res[7] = _mm_add_epi16(res[7], k_const_rounding);
+ }
+
res[0] = _mm_sub_epi16(res[0], sign0);
res[1] = _mm_sub_epi16(res[1], sign1);
res[2] = _mm_sub_epi16(res[2], sign2);
// write 8x8 array
static INLINE void write_buffer_8x8(int16_t *output, __m128i *res, int stride) {
- right_shift_8x8(res, 1);
-
_mm_store_si128((__m128i *)(output + 0 * stride), res[0]);
_mm_store_si128((__m128i *)(output + 1 * stride), res[1]);
_mm_store_si128((__m128i *)(output + 2 * stride), res[2]);
assert(0);
break;
}
+ right_shift_8x8(in, 1);
write_buffer_8x8(output, in, 8);
}
}
}
+static INLINE void load_buffer_16x16(int16_t* input, __m128i *in0,
+ __m128i *in1, int stride) {
+ // load first 8 columns
+ load_buffer_8x8(input, in0, stride);
+ load_buffer_8x8(input + 8 * stride, in0 + 8, stride);
+
+ input += 8;
+ // load second 8 columns
+ load_buffer_8x8(input, in1, stride);
+ load_buffer_8x8(input + 8 * stride, in1 + 8, stride);
+}
+
+static INLINE void write_buffer_16x16(int16_t *output, __m128i *in0,
+ __m128i *in1, int stride) {
+ // write first 8 columns
+ write_buffer_8x8(output, in0, stride);
+ write_buffer_8x8(output + 8 * stride, in0 + 8, stride);
+ // write second 8 columns
+ output += 8;
+ write_buffer_8x8(output, in1, stride);
+ write_buffer_8x8(output + 8 * stride, in1 + 8, stride);
+}
+
+static INLINE void array_transpose_16x16(__m128i *res0, __m128i *res1) {
+ __m128i tbuf[8];
+ array_transpose_8x8(res0, res0);
+ array_transpose_8x8(res1, tbuf);
+ array_transpose_8x8(res0 + 8, res1);
+ array_transpose_8x8(res1 + 8, res1 + 8);
+
+ res0[8] = tbuf[0];
+ res0[9] = tbuf[1];
+ res0[10] = tbuf[2];
+ res0[11] = tbuf[3];
+ res0[12] = tbuf[4];
+ res0[13] = tbuf[5];
+ res0[14] = tbuf[6];
+ res0[15] = tbuf[7];
+}
+
+static INLINE void right_shift_16x16(__m128i *res0, __m128i *res1) {
+ // perform rounding operations
+ right_shift_8x8(res0, 2);
+ right_shift_8x8(res0 + 8, 2);
+ right_shift_8x8(res1, 2);
+ right_shift_8x8(res1 + 8, 2);
+}
+
+void fdct16_1d_8col(__m128i *in) {
+ // perform 16x16 1-D DCT for 8 columns
+ __m128i i[8], s[8], p[8], t[8], u[16], v[16];
+ const __m128i k__cospi_p16_p16 = _mm_set1_epi16(cospi_16_64);
+ const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
+ const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
+ const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64);
+ const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
+ const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
+ const __m128i k__cospi_p28_p04 = pair_set_epi16(cospi_28_64, cospi_4_64);
+ const __m128i k__cospi_m04_p28 = pair_set_epi16(-cospi_4_64, cospi_28_64);
+ const __m128i k__cospi_p12_p20 = pair_set_epi16(cospi_12_64, cospi_20_64);
+ const __m128i k__cospi_m20_p12 = pair_set_epi16(-cospi_20_64, cospi_12_64);
+ const __m128i k__cospi_p30_p02 = pair_set_epi16(cospi_30_64, cospi_2_64);
+ const __m128i k__cospi_p14_p18 = pair_set_epi16(cospi_14_64, cospi_18_64);
+ const __m128i k__cospi_m02_p30 = pair_set_epi16(-cospi_2_64, cospi_30_64);
+ const __m128i k__cospi_m18_p14 = pair_set_epi16(-cospi_18_64, cospi_14_64);
+ const __m128i k__cospi_p22_p10 = pair_set_epi16(cospi_22_64, cospi_10_64);
+ const __m128i k__cospi_p06_p26 = pair_set_epi16(cospi_6_64, cospi_26_64);
+ const __m128i k__cospi_m10_p22 = pair_set_epi16(-cospi_10_64, cospi_22_64);
+ const __m128i k__cospi_m26_p06 = pair_set_epi16(-cospi_26_64, cospi_6_64);
+ const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
+
+ // stage 1
+ i[0] = _mm_add_epi16(in[0], in[15]);
+ i[1] = _mm_add_epi16(in[1], in[14]);
+ i[2] = _mm_add_epi16(in[2], in[13]);
+ i[3] = _mm_add_epi16(in[3], in[12]);
+ i[4] = _mm_add_epi16(in[4], in[11]);
+ i[5] = _mm_add_epi16(in[5], in[10]);
+ i[6] = _mm_add_epi16(in[6], in[9]);
+ i[7] = _mm_add_epi16(in[7], in[8]);
+
+ s[0] = _mm_sub_epi16(in[7], in[8]);
+ s[1] = _mm_sub_epi16(in[6], in[9]);
+ s[2] = _mm_sub_epi16(in[5], in[10]);
+ s[3] = _mm_sub_epi16(in[4], in[11]);
+ s[4] = _mm_sub_epi16(in[3], in[12]);
+ s[5] = _mm_sub_epi16(in[2], in[13]);
+ s[6] = _mm_sub_epi16(in[1], in[14]);
+ s[7] = _mm_sub_epi16(in[0], in[15]);
+
+ p[0] = _mm_add_epi16(i[0], i[7]);
+ p[1] = _mm_add_epi16(i[1], i[6]);
+ p[2] = _mm_add_epi16(i[2], i[5]);
+ p[3] = _mm_add_epi16(i[3], i[4]);
+ p[4] = _mm_sub_epi16(i[3], i[4]);
+ p[5] = _mm_sub_epi16(i[2], i[5]);
+ p[6] = _mm_sub_epi16(i[1], i[6]);
+ p[7] = _mm_sub_epi16(i[0], i[7]);
+
+ u[0] = _mm_add_epi16(p[0], p[3]);
+ u[1] = _mm_add_epi16(p[1], p[2]);
+ u[2] = _mm_sub_epi16(p[1], p[2]);
+ u[3] = _mm_sub_epi16(p[0], p[3]);
+
+ v[0] = _mm_unpacklo_epi16(u[0], u[1]);
+ v[1] = _mm_unpackhi_epi16(u[0], u[1]);
+ v[2] = _mm_unpacklo_epi16(u[2], u[3]);
+ v[3] = _mm_unpackhi_epi16(u[2], u[3]);
+
+ u[0] = _mm_madd_epi16(v[0], k__cospi_p16_p16);
+ u[1] = _mm_madd_epi16(v[1], k__cospi_p16_p16);
+ u[2] = _mm_madd_epi16(v[0], k__cospi_p16_m16);
+ u[3] = _mm_madd_epi16(v[1], k__cospi_p16_m16);
+ u[4] = _mm_madd_epi16(v[2], k__cospi_p24_p08);
+ u[5] = _mm_madd_epi16(v[3], k__cospi_p24_p08);
+ u[6] = _mm_madd_epi16(v[2], k__cospi_m08_p24);
+ u[7] = _mm_madd_epi16(v[3], k__cospi_m08_p24);
+
+ v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
+ v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
+ v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
+ v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
+ v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
+ v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
+ v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
+ v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
+
+ u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
+ u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
+ u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
+ u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
+ u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS);
+ u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS);
+ u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS);
+ u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS);
+
+ in[0] = _mm_packs_epi32(u[0], u[1]);
+ in[4] = _mm_packs_epi32(u[4], u[5]);
+ in[8] = _mm_packs_epi32(u[2], u[3]);
+ in[12] = _mm_packs_epi32(u[6], u[7]);
+
+ u[0] = _mm_unpacklo_epi16(p[5], p[6]);
+ u[1] = _mm_unpackhi_epi16(p[5], p[6]);
+ v[0] = _mm_madd_epi16(u[0], k__cospi_m16_p16);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_m16_p16);
+ v[2] = _mm_madd_epi16(u[0], k__cospi_p16_p16);
+ v[3] = _mm_madd_epi16(u[1], k__cospi_p16_p16);
+
+ u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+
+ u[0] = _mm_packs_epi32(v[0], v[1]);
+ u[1] = _mm_packs_epi32(v[2], v[3]);
+
+ t[0] = _mm_add_epi16(p[4], u[0]);
+ t[1] = _mm_sub_epi16(p[4], u[0]);
+ t[2] = _mm_sub_epi16(p[7], u[1]);
+ t[3] = _mm_add_epi16(p[7], u[1]);
+
+ u[0] = _mm_unpacklo_epi16(t[0], t[3]);
+ u[1] = _mm_unpackhi_epi16(t[0], t[3]);
+ u[2] = _mm_unpacklo_epi16(t[1], t[2]);
+ u[3] = _mm_unpackhi_epi16(t[1], t[2]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_p28_p04);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_p28_p04);
+ v[2] = _mm_madd_epi16(u[2], k__cospi_p12_p20);
+ v[3] = _mm_madd_epi16(u[3], k__cospi_p12_p20);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_m20_p12);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_m20_p12);
+ v[6] = _mm_madd_epi16(u[0], k__cospi_m04_p28);
+ v[7] = _mm_madd_epi16(u[1], k__cospi_m04_p28);
+
+ u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
+ u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
+ u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
+ u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
+ u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+
+ in[2] = _mm_packs_epi32(v[0], v[1]);
+ in[6] = _mm_packs_epi32(v[4], v[5]);
+ in[10] = _mm_packs_epi32(v[2], v[3]);
+ in[14] = _mm_packs_epi32(v[6], v[7]);
+
+ // stage 2
+ u[0] = _mm_unpacklo_epi16(s[2], s[5]);
+ u[1] = _mm_unpackhi_epi16(s[2], s[5]);
+ u[2] = _mm_unpacklo_epi16(s[3], s[4]);
+ u[3] = _mm_unpackhi_epi16(s[3], s[4]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_m16_p16);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_m16_p16);
+ v[2] = _mm_madd_epi16(u[2], k__cospi_m16_p16);
+ v[3] = _mm_madd_epi16(u[3], k__cospi_m16_p16);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_p16_p16);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_p16_p16);
+ v[6] = _mm_madd_epi16(u[0], k__cospi_p16_p16);
+ v[7] = _mm_madd_epi16(u[1], k__cospi_p16_p16);
+
+ u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
+ u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
+ u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
+ u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
+ u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+
+ t[2] = _mm_packs_epi32(v[0], v[1]);
+ t[3] = _mm_packs_epi32(v[2], v[3]);
+ t[4] = _mm_packs_epi32(v[4], v[5]);
+ t[5] = _mm_packs_epi32(v[6], v[7]);
+
+ // stage 3
+ p[0] = _mm_add_epi16(s[0], t[3]);
+ p[1] = _mm_add_epi16(s[1], t[2]);
+ p[2] = _mm_sub_epi16(s[1], t[2]);
+ p[3] = _mm_sub_epi16(s[0], t[3]);
+ p[4] = _mm_sub_epi16(s[7], t[4]);
+ p[5] = _mm_sub_epi16(s[6], t[5]);
+ p[6] = _mm_add_epi16(s[6], t[5]);
+ p[7] = _mm_add_epi16(s[7], t[4]);
+
+ // stage 4
+ u[0] = _mm_unpacklo_epi16(p[1], p[6]);
+ u[1] = _mm_unpackhi_epi16(p[1], p[6]);
+ u[2] = _mm_unpacklo_epi16(p[2], p[5]);
+ u[3] = _mm_unpackhi_epi16(p[2], p[5]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_m08_p24);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_m08_p24);
+ v[2] = _mm_madd_epi16(u[2], k__cospi_m24_m08);
+ v[3] = _mm_madd_epi16(u[3], k__cospi_m24_m08);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_m08_p24);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_m08_p24);
+ v[6] = _mm_madd_epi16(u[0], k__cospi_p24_p08);
+ v[7] = _mm_madd_epi16(u[1], k__cospi_p24_p08);
+
+ u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
+ u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
+ u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
+ u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
+ u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+
+ t[1] = _mm_packs_epi32(v[0], v[1]);
+ t[2] = _mm_packs_epi32(v[2], v[3]);
+ t[5] = _mm_packs_epi32(v[4], v[5]);
+ t[6] = _mm_packs_epi32(v[6], v[7]);
+
+ // stage 5
+ s[0] = _mm_add_epi16(p[0], t[1]);
+ s[1] = _mm_sub_epi16(p[0], t[1]);
+ s[2] = _mm_sub_epi16(p[3], t[2]);
+ s[3] = _mm_add_epi16(p[3], t[2]);
+ s[4] = _mm_add_epi16(p[4], t[5]);
+ s[5] = _mm_sub_epi16(p[4], t[5]);
+ s[6] = _mm_sub_epi16(p[7], t[6]);
+ s[7] = _mm_add_epi16(p[7], t[6]);
+
+ // stage 6
+ u[0] = _mm_unpacklo_epi16(s[0], s[7]);
+ u[1] = _mm_unpackhi_epi16(s[0], s[7]);
+ u[2] = _mm_unpacklo_epi16(s[1], s[6]);
+ u[3] = _mm_unpackhi_epi16(s[1], s[6]);
+ u[4] = _mm_unpacklo_epi16(s[2], s[5]);
+ u[5] = _mm_unpackhi_epi16(s[2], s[5]);
+ u[6] = _mm_unpacklo_epi16(s[3], s[4]);
+ u[7] = _mm_unpackhi_epi16(s[3], s[4]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_p30_p02);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_p30_p02);
+ v[2] = _mm_madd_epi16(u[2], k__cospi_p14_p18);
+ v[3] = _mm_madd_epi16(u[3], k__cospi_p14_p18);
+ v[4] = _mm_madd_epi16(u[4], k__cospi_p22_p10);
+ v[5] = _mm_madd_epi16(u[5], k__cospi_p22_p10);
+ v[6] = _mm_madd_epi16(u[6], k__cospi_p06_p26);
+ v[7] = _mm_madd_epi16(u[7], k__cospi_p06_p26);
+ v[8] = _mm_madd_epi16(u[6], k__cospi_m26_p06);
+ v[9] = _mm_madd_epi16(u[7], k__cospi_m26_p06);
+ v[10] = _mm_madd_epi16(u[4], k__cospi_m10_p22);
+ v[11] = _mm_madd_epi16(u[5], k__cospi_m10_p22);
+ v[12] = _mm_madd_epi16(u[2], k__cospi_m18_p14);
+ v[13] = _mm_madd_epi16(u[3], k__cospi_m18_p14);
+ v[14] = _mm_madd_epi16(u[0], k__cospi_m02_p30);
+ v[15] = _mm_madd_epi16(u[1], k__cospi_m02_p30);
+
+ u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
+ u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
+ u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
+ u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
+ u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
+ u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING);
+ u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING);
+ u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING);
+ u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING);
+ u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING);
+ u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING);
+ u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING);
+ u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+ v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
+ v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
+ v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
+ v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
+ v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
+ v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
+ v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
+ v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
+
+ in[1] = _mm_packs_epi32(v[0], v[1]);
+ in[9] = _mm_packs_epi32(v[2], v[3]);
+ in[5] = _mm_packs_epi32(v[4], v[5]);
+ in[13] = _mm_packs_epi32(v[6], v[7]);
+ in[3] = _mm_packs_epi32(v[8], v[9]);
+ in[11] = _mm_packs_epi32(v[10], v[11]);
+ in[7] = _mm_packs_epi32(v[12], v[13]);
+ in[15] = _mm_packs_epi32(v[14], v[15]);
+}
+
+void fadst16_1d_8col(__m128i *in) {
+ // perform 16x16 1-D ADST for 8 columns
+ __m128i s[16], x[16], u[32], v[32];
+ const __m128i k__cospi_p01_p31 = pair_set_epi16(cospi_1_64, cospi_31_64);
+ const __m128i k__cospi_p31_m01 = pair_set_epi16(cospi_31_64, -cospi_1_64);
+ const __m128i k__cospi_p05_p27 = pair_set_epi16(cospi_5_64, cospi_27_64);
+ const __m128i k__cospi_p27_m05 = pair_set_epi16(cospi_27_64, -cospi_5_64);
+ const __m128i k__cospi_p09_p23 = pair_set_epi16(cospi_9_64, cospi_23_64);
+ const __m128i k__cospi_p23_m09 = pair_set_epi16(cospi_23_64, -cospi_9_64);
+ const __m128i k__cospi_p13_p19 = pair_set_epi16(cospi_13_64, cospi_19_64);
+ const __m128i k__cospi_p19_m13 = pair_set_epi16(cospi_19_64, -cospi_13_64);
+ const __m128i k__cospi_p17_p15 = pair_set_epi16(cospi_17_64, cospi_15_64);
+ const __m128i k__cospi_p15_m17 = pair_set_epi16(cospi_15_64, -cospi_17_64);
+ const __m128i k__cospi_p21_p11 = pair_set_epi16(cospi_21_64, cospi_11_64);
+ const __m128i k__cospi_p11_m21 = pair_set_epi16(cospi_11_64, -cospi_21_64);
+ const __m128i k__cospi_p25_p07 = pair_set_epi16(cospi_25_64, cospi_7_64);
+ const __m128i k__cospi_p07_m25 = pair_set_epi16(cospi_7_64, -cospi_25_64);
+ const __m128i k__cospi_p29_p03 = pair_set_epi16(cospi_29_64, cospi_3_64);
+ const __m128i k__cospi_p03_m29 = pair_set_epi16(cospi_3_64, -cospi_29_64);
+ const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64);
+ const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64);
+ const __m128i k__cospi_p20_p12 = pair_set_epi16(cospi_20_64, cospi_12_64);
+ const __m128i k__cospi_p12_m20 = pair_set_epi16(cospi_12_64, -cospi_20_64);
+ const __m128i k__cospi_m28_p04 = pair_set_epi16(-cospi_28_64, cospi_4_64);
+ const __m128i k__cospi_m12_p20 = pair_set_epi16(-cospi_12_64, cospi_20_64);
+ const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64);
+ const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64);
+ const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64);
+ const __m128i k__cospi_m16_m16 = _mm_set1_epi16(-cospi_16_64);
+ const __m128i k__cospi_p16_p16 = _mm_set1_epi16(cospi_16_64);
+ const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
+ const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
+ const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
+ const __m128i kZero = _mm_set1_epi16(0);
+
+ u[0] = _mm_unpacklo_epi16(in[15], in[0]);
+ u[1] = _mm_unpackhi_epi16(in[15], in[0]);
+ u[2] = _mm_unpacklo_epi16(in[13], in[2]);
+ u[3] = _mm_unpackhi_epi16(in[13], in[2]);
+ u[4] = _mm_unpacklo_epi16(in[11], in[4]);
+ u[5] = _mm_unpackhi_epi16(in[11], in[4]);
+ u[6] = _mm_unpacklo_epi16(in[9], in[6]);
+ u[7] = _mm_unpackhi_epi16(in[9], in[6]);
+ u[8] = _mm_unpacklo_epi16(in[7], in[8]);
+ u[9] = _mm_unpackhi_epi16(in[7], in[8]);
+ u[10] = _mm_unpacklo_epi16(in[5], in[10]);
+ u[11] = _mm_unpackhi_epi16(in[5], in[10]);
+ u[12] = _mm_unpacklo_epi16(in[3], in[12]);
+ u[13] = _mm_unpackhi_epi16(in[3], in[12]);
+ u[14] = _mm_unpacklo_epi16(in[1], in[14]);
+ u[15] = _mm_unpackhi_epi16(in[1], in[14]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_p01_p31);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_p01_p31);
+ v[2] = _mm_madd_epi16(u[0], k__cospi_p31_m01);
+ v[3] = _mm_madd_epi16(u[1], k__cospi_p31_m01);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_p05_p27);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_p05_p27);
+ v[6] = _mm_madd_epi16(u[2], k__cospi_p27_m05);
+ v[7] = _mm_madd_epi16(u[3], k__cospi_p27_m05);
+ v[8] = _mm_madd_epi16(u[4], k__cospi_p09_p23);
+ v[9] = _mm_madd_epi16(u[5], k__cospi_p09_p23);
+ v[10] = _mm_madd_epi16(u[4], k__cospi_p23_m09);
+ v[11] = _mm_madd_epi16(u[5], k__cospi_p23_m09);
+ v[12] = _mm_madd_epi16(u[6], k__cospi_p13_p19);
+ v[13] = _mm_madd_epi16(u[7], k__cospi_p13_p19);
+ v[14] = _mm_madd_epi16(u[6], k__cospi_p19_m13);
+ v[15] = _mm_madd_epi16(u[7], k__cospi_p19_m13);
+ v[16] = _mm_madd_epi16(u[8], k__cospi_p17_p15);
+ v[17] = _mm_madd_epi16(u[9], k__cospi_p17_p15);
+ v[18] = _mm_madd_epi16(u[8], k__cospi_p15_m17);
+ v[19] = _mm_madd_epi16(u[9], k__cospi_p15_m17);
+ v[20] = _mm_madd_epi16(u[10], k__cospi_p21_p11);
+ v[21] = _mm_madd_epi16(u[11], k__cospi_p21_p11);
+ v[22] = _mm_madd_epi16(u[10], k__cospi_p11_m21);
+ v[23] = _mm_madd_epi16(u[11], k__cospi_p11_m21);
+ v[24] = _mm_madd_epi16(u[12], k__cospi_p25_p07);
+ v[25] = _mm_madd_epi16(u[13], k__cospi_p25_p07);
+ v[26] = _mm_madd_epi16(u[12], k__cospi_p07_m25);
+ v[27] = _mm_madd_epi16(u[13], k__cospi_p07_m25);
+ v[28] = _mm_madd_epi16(u[14], k__cospi_p29_p03);
+ v[29] = _mm_madd_epi16(u[15], k__cospi_p29_p03);
+ v[30] = _mm_madd_epi16(u[14], k__cospi_p03_m29);
+ v[31] = _mm_madd_epi16(u[15], k__cospi_p03_m29);
+
+ u[0] = _mm_add_epi32(v[0], v[16]);
+ u[1] = _mm_add_epi32(v[1], v[17]);
+ u[2] = _mm_add_epi32(v[2], v[18]);
+ u[3] = _mm_add_epi32(v[3], v[19]);
+ u[4] = _mm_add_epi32(v[4], v[20]);
+ u[5] = _mm_add_epi32(v[5], v[21]);
+ u[6] = _mm_add_epi32(v[6], v[22]);
+ u[7] = _mm_add_epi32(v[7], v[23]);
+ u[8] = _mm_add_epi32(v[8], v[24]);
+ u[9] = _mm_add_epi32(v[9], v[25]);
+ u[10] = _mm_add_epi32(v[10], v[26]);
+ u[11] = _mm_add_epi32(v[11], v[27]);
+ u[12] = _mm_add_epi32(v[12], v[28]);
+ u[13] = _mm_add_epi32(v[13], v[29]);
+ u[14] = _mm_add_epi32(v[14], v[30]);
+ u[15] = _mm_add_epi32(v[15], v[31]);
+ u[16] = _mm_sub_epi32(v[0], v[16]);
+ u[17] = _mm_sub_epi32(v[1], v[17]);
+ u[18] = _mm_sub_epi32(v[2], v[18]);
+ u[19] = _mm_sub_epi32(v[3], v[19]);
+ u[20] = _mm_sub_epi32(v[4], v[20]);
+ u[21] = _mm_sub_epi32(v[5], v[21]);
+ u[22] = _mm_sub_epi32(v[6], v[22]);
+ u[23] = _mm_sub_epi32(v[7], v[23]);
+ u[24] = _mm_sub_epi32(v[8], v[24]);
+ u[25] = _mm_sub_epi32(v[9], v[25]);
+ u[26] = _mm_sub_epi32(v[10], v[26]);
+ u[27] = _mm_sub_epi32(v[11], v[27]);
+ u[28] = _mm_sub_epi32(v[12], v[28]);
+ u[29] = _mm_sub_epi32(v[13], v[29]);
+ u[30] = _mm_sub_epi32(v[14], v[30]);
+ u[31] = _mm_sub_epi32(v[15], v[31]);
+
+ v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
+ v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
+ v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
+ v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
+ v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
+ v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
+ v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
+ v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
+ v[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING);
+ v[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING);
+ v[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING);
+ v[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING);
+ v[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING);
+ v[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING);
+ v[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING);
+ v[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING);
+ v[16] = _mm_add_epi32(u[16], k__DCT_CONST_ROUNDING);
+ v[17] = _mm_add_epi32(u[17], k__DCT_CONST_ROUNDING);
+ v[18] = _mm_add_epi32(u[18], k__DCT_CONST_ROUNDING);
+ v[19] = _mm_add_epi32(u[19], k__DCT_CONST_ROUNDING);
+ v[20] = _mm_add_epi32(u[20], k__DCT_CONST_ROUNDING);
+ v[21] = _mm_add_epi32(u[21], k__DCT_CONST_ROUNDING);
+ v[22] = _mm_add_epi32(u[22], k__DCT_CONST_ROUNDING);
+ v[23] = _mm_add_epi32(u[23], k__DCT_CONST_ROUNDING);
+ v[24] = _mm_add_epi32(u[24], k__DCT_CONST_ROUNDING);
+ v[25] = _mm_add_epi32(u[25], k__DCT_CONST_ROUNDING);
+ v[26] = _mm_add_epi32(u[26], k__DCT_CONST_ROUNDING);
+ v[27] = _mm_add_epi32(u[27], k__DCT_CONST_ROUNDING);
+ v[28] = _mm_add_epi32(u[28], k__DCT_CONST_ROUNDING);
+ v[29] = _mm_add_epi32(u[29], k__DCT_CONST_ROUNDING);
+ v[30] = _mm_add_epi32(u[30], k__DCT_CONST_ROUNDING);
+ v[31] = _mm_add_epi32(u[31], k__DCT_CONST_ROUNDING);
+
+ u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
+ u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
+ u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
+ u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
+ u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS);
+ u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS);
+ u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS);
+ u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS);
+ u[8] = _mm_srai_epi32(v[8], DCT_CONST_BITS);
+ u[9] = _mm_srai_epi32(v[9], DCT_CONST_BITS);
+ u[10] = _mm_srai_epi32(v[10], DCT_CONST_BITS);
+ u[11] = _mm_srai_epi32(v[11], DCT_CONST_BITS);
+ u[12] = _mm_srai_epi32(v[12], DCT_CONST_BITS);
+ u[13] = _mm_srai_epi32(v[13], DCT_CONST_BITS);
+ u[14] = _mm_srai_epi32(v[14], DCT_CONST_BITS);
+ u[15] = _mm_srai_epi32(v[15], DCT_CONST_BITS);
+ u[16] = _mm_srai_epi32(v[16], DCT_CONST_BITS);
+ u[17] = _mm_srai_epi32(v[17], DCT_CONST_BITS);
+ u[18] = _mm_srai_epi32(v[18], DCT_CONST_BITS);
+ u[19] = _mm_srai_epi32(v[19], DCT_CONST_BITS);
+ u[20] = _mm_srai_epi32(v[20], DCT_CONST_BITS);
+ u[21] = _mm_srai_epi32(v[21], DCT_CONST_BITS);
+ u[22] = _mm_srai_epi32(v[22], DCT_CONST_BITS);
+ u[23] = _mm_srai_epi32(v[23], DCT_CONST_BITS);
+ u[24] = _mm_srai_epi32(v[24], DCT_CONST_BITS);
+ u[25] = _mm_srai_epi32(v[25], DCT_CONST_BITS);
+ u[26] = _mm_srai_epi32(v[26], DCT_CONST_BITS);
+ u[27] = _mm_srai_epi32(v[27], DCT_CONST_BITS);
+ u[28] = _mm_srai_epi32(v[28], DCT_CONST_BITS);
+ u[29] = _mm_srai_epi32(v[29], DCT_CONST_BITS);
+ u[30] = _mm_srai_epi32(v[30], DCT_CONST_BITS);
+ u[31] = _mm_srai_epi32(v[31], DCT_CONST_BITS);
+
+ s[0] = _mm_packs_epi32(u[0], u[1]);
+ s[1] = _mm_packs_epi32(u[2], u[3]);
+ s[2] = _mm_packs_epi32(u[4], u[5]);
+ s[3] = _mm_packs_epi32(u[6], u[7]);
+ s[4] = _mm_packs_epi32(u[8], u[9]);
+ s[5] = _mm_packs_epi32(u[10], u[11]);
+ s[6] = _mm_packs_epi32(u[12], u[13]);
+ s[7] = _mm_packs_epi32(u[14], u[15]);
+ s[8] = _mm_packs_epi32(u[16], u[17]);
+ s[9] = _mm_packs_epi32(u[18], u[19]);
+ s[10] = _mm_packs_epi32(u[20], u[21]);
+ s[11] = _mm_packs_epi32(u[22], u[23]);
+ s[12] = _mm_packs_epi32(u[24], u[25]);
+ s[13] = _mm_packs_epi32(u[26], u[27]);
+ s[14] = _mm_packs_epi32(u[28], u[29]);
+ s[15] = _mm_packs_epi32(u[30], u[31]);
+
+ // stage 2
+ u[0] = _mm_unpacklo_epi16(s[8], s[9]);
+ u[1] = _mm_unpackhi_epi16(s[8], s[9]);
+ u[2] = _mm_unpacklo_epi16(s[10], s[11]);
+ u[3] = _mm_unpackhi_epi16(s[10], s[11]);
+ u[4] = _mm_unpacklo_epi16(s[12], s[13]);
+ u[5] = _mm_unpackhi_epi16(s[12], s[13]);
+ u[6] = _mm_unpacklo_epi16(s[14], s[15]);
+ u[7] = _mm_unpackhi_epi16(s[14], s[15]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_p04_p28);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_p04_p28);
+ v[2] = _mm_madd_epi16(u[0], k__cospi_p28_m04);
+ v[3] = _mm_madd_epi16(u[1], k__cospi_p28_m04);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_p20_p12);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_p20_p12);
+ v[6] = _mm_madd_epi16(u[2], k__cospi_p12_m20);
+ v[7] = _mm_madd_epi16(u[3], k__cospi_p12_m20);
+ v[8] = _mm_madd_epi16(u[4], k__cospi_m28_p04);
+ v[9] = _mm_madd_epi16(u[5], k__cospi_m28_p04);
+ v[10] = _mm_madd_epi16(u[4], k__cospi_p04_p28);
+ v[11] = _mm_madd_epi16(u[5], k__cospi_p04_p28);
+ v[12] = _mm_madd_epi16(u[6], k__cospi_m12_p20);
+ v[13] = _mm_madd_epi16(u[7], k__cospi_m12_p20);
+ v[14] = _mm_madd_epi16(u[6], k__cospi_p20_p12);
+ v[15] = _mm_madd_epi16(u[7], k__cospi_p20_p12);
+
+ u[0] = _mm_add_epi32(v[0], v[8]);
+ u[1] = _mm_add_epi32(v[1], v[9]);
+ u[2] = _mm_add_epi32(v[2], v[10]);
+ u[3] = _mm_add_epi32(v[3], v[11]);
+ u[4] = _mm_add_epi32(v[4], v[12]);
+ u[5] = _mm_add_epi32(v[5], v[13]);
+ u[6] = _mm_add_epi32(v[6], v[14]);
+ u[7] = _mm_add_epi32(v[7], v[15]);
+ u[8] = _mm_sub_epi32(v[0], v[8]);
+ u[9] = _mm_sub_epi32(v[1], v[9]);
+ u[10] = _mm_sub_epi32(v[2], v[10]);
+ u[11] = _mm_sub_epi32(v[3], v[11]);
+ u[12] = _mm_sub_epi32(v[4], v[12]);
+ u[13] = _mm_sub_epi32(v[5], v[13]);
+ u[14] = _mm_sub_epi32(v[6], v[14]);
+ u[15] = _mm_sub_epi32(v[7], v[15]);
+
+ v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
+ v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
+ v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
+ v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
+ v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
+ v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
+ v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
+ v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
+ v[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING);
+ v[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING);
+ v[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING);
+ v[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING);
+ v[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING);
+ v[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING);
+ v[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING);
+ v[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING);
+
+ u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
+ u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
+ u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
+ u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
+ u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS);
+ u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS);
+ u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS);
+ u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS);
+ u[8] = _mm_srai_epi32(v[8], DCT_CONST_BITS);
+ u[9] = _mm_srai_epi32(v[9], DCT_CONST_BITS);
+ u[10] = _mm_srai_epi32(v[10], DCT_CONST_BITS);
+ u[11] = _mm_srai_epi32(v[11], DCT_CONST_BITS);
+ u[12] = _mm_srai_epi32(v[12], DCT_CONST_BITS);
+ u[13] = _mm_srai_epi32(v[13], DCT_CONST_BITS);
+ u[14] = _mm_srai_epi32(v[14], DCT_CONST_BITS);
+ u[15] = _mm_srai_epi32(v[15], DCT_CONST_BITS);
+
+ x[0] = _mm_add_epi16(s[0], s[4]);
+ x[1] = _mm_add_epi16(s[1], s[5]);
+ x[2] = _mm_add_epi16(s[2], s[6]);
+ x[3] = _mm_add_epi16(s[3], s[7]);
+ x[4] = _mm_sub_epi16(s[0], s[4]);
+ x[5] = _mm_sub_epi16(s[1], s[5]);
+ x[6] = _mm_sub_epi16(s[2], s[6]);
+ x[7] = _mm_sub_epi16(s[3], s[7]);
+ x[8] = _mm_packs_epi32(u[0], u[1]);
+ x[9] = _mm_packs_epi32(u[2], u[3]);
+ x[10] = _mm_packs_epi32(u[4], u[5]);
+ x[11] = _mm_packs_epi32(u[6], u[7]);
+ x[12] = _mm_packs_epi32(u[8], u[9]);
+ x[13] = _mm_packs_epi32(u[10], u[11]);
+ x[14] = _mm_packs_epi32(u[12], u[13]);
+ x[15] = _mm_packs_epi32(u[14], u[15]);
+
+ // stage 3
+ u[0] = _mm_unpacklo_epi16(x[4], x[5]);
+ u[1] = _mm_unpackhi_epi16(x[4], x[5]);
+ u[2] = _mm_unpacklo_epi16(x[6], x[7]);
+ u[3] = _mm_unpackhi_epi16(x[6], x[7]);
+ u[4] = _mm_unpacklo_epi16(x[12], x[13]);
+ u[5] = _mm_unpackhi_epi16(x[12], x[13]);
+ u[6] = _mm_unpacklo_epi16(x[14], x[15]);
+ u[7] = _mm_unpackhi_epi16(x[14], x[15]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_p08_p24);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_p08_p24);
+ v[2] = _mm_madd_epi16(u[0], k__cospi_p24_m08);
+ v[3] = _mm_madd_epi16(u[1], k__cospi_p24_m08);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_m24_p08);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_m24_p08);
+ v[6] = _mm_madd_epi16(u[2], k__cospi_p08_p24);
+ v[7] = _mm_madd_epi16(u[3], k__cospi_p08_p24);
+ v[8] = _mm_madd_epi16(u[4], k__cospi_p08_p24);
+ v[9] = _mm_madd_epi16(u[5], k__cospi_p08_p24);
+ v[10] = _mm_madd_epi16(u[4], k__cospi_p24_m08);
+ v[11] = _mm_madd_epi16(u[5], k__cospi_p24_m08);
+ v[12] = _mm_madd_epi16(u[6], k__cospi_m24_p08);
+ v[13] = _mm_madd_epi16(u[7], k__cospi_m24_p08);
+ v[14] = _mm_madd_epi16(u[6], k__cospi_p08_p24);
+ v[15] = _mm_madd_epi16(u[7], k__cospi_p08_p24);
+
+ u[0] = _mm_add_epi32(v[0], v[4]);
+ u[1] = _mm_add_epi32(v[1], v[5]);
+ u[2] = _mm_add_epi32(v[2], v[6]);
+ u[3] = _mm_add_epi32(v[3], v[7]);
+ u[4] = _mm_sub_epi32(v[0], v[4]);
+ u[5] = _mm_sub_epi32(v[1], v[5]);
+ u[6] = _mm_sub_epi32(v[2], v[6]);
+ u[7] = _mm_sub_epi32(v[3], v[7]);
+ u[8] = _mm_add_epi32(v[8], v[12]);
+ u[9] = _mm_add_epi32(v[9], v[13]);
+ u[10] = _mm_add_epi32(v[10], v[14]);
+ u[11] = _mm_add_epi32(v[11], v[15]);
+ u[12] = _mm_sub_epi32(v[8], v[12]);
+ u[13] = _mm_sub_epi32(v[9], v[13]);
+ u[14] = _mm_sub_epi32(v[10], v[14]);
+ u[15] = _mm_sub_epi32(v[11], v[15]);
+
+ u[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
+ u[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
+ u[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
+ u[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
+ u[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
+ u[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING);
+ u[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING);
+ u[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING);
+ u[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING);
+ u[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING);
+ u[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING);
+ u[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING);
+ u[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+ v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
+ v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
+ v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
+ v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
+ v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
+ v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
+ v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
+ v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
+
+ s[0] = _mm_add_epi16(x[0], x[2]);
+ s[1] = _mm_add_epi16(x[1], x[3]);
+ s[2] = _mm_sub_epi16(x[0], x[2]);
+ s[3] = _mm_sub_epi16(x[1], x[3]);
+ s[4] = _mm_packs_epi32(v[0], v[1]);
+ s[5] = _mm_packs_epi32(v[2], v[3]);
+ s[6] = _mm_packs_epi32(v[4], v[5]);
+ s[7] = _mm_packs_epi32(v[6], v[7]);
+ s[8] = _mm_add_epi16(x[8], x[10]);
+ s[9] = _mm_add_epi16(x[9], x[11]);
+ s[10] = _mm_sub_epi16(x[8], x[10]);
+ s[11] = _mm_sub_epi16(x[9], x[11]);
+ s[12] = _mm_packs_epi32(v[8], v[9]);
+ s[13] = _mm_packs_epi32(v[10], v[11]);
+ s[14] = _mm_packs_epi32(v[12], v[13]);
+ s[15] = _mm_packs_epi32(v[14], v[15]);
+
+ // stage 4
+ u[0] = _mm_unpacklo_epi16(s[2], s[3]);
+ u[1] = _mm_unpackhi_epi16(s[2], s[3]);
+ u[2] = _mm_unpacklo_epi16(s[6], s[7]);
+ u[3] = _mm_unpackhi_epi16(s[6], s[7]);
+ u[4] = _mm_unpacklo_epi16(s[10], s[11]);
+ u[5] = _mm_unpackhi_epi16(s[10], s[11]);
+ u[6] = _mm_unpacklo_epi16(s[14], s[15]);
+ u[7] = _mm_unpackhi_epi16(s[14], s[15]);
+
+ v[0] = _mm_madd_epi16(u[0], k__cospi_m16_m16);
+ v[1] = _mm_madd_epi16(u[1], k__cospi_m16_m16);
+ v[2] = _mm_madd_epi16(u[0], k__cospi_p16_m16);
+ v[3] = _mm_madd_epi16(u[1], k__cospi_p16_m16);
+ v[4] = _mm_madd_epi16(u[2], k__cospi_p16_p16);
+ v[5] = _mm_madd_epi16(u[3], k__cospi_p16_p16);
+ v[6] = _mm_madd_epi16(u[2], k__cospi_m16_p16);
+ v[7] = _mm_madd_epi16(u[3], k__cospi_m16_p16);
+ v[8] = _mm_madd_epi16(u[4], k__cospi_p16_p16);
+ v[9] = _mm_madd_epi16(u[5], k__cospi_p16_p16);
+ v[10] = _mm_madd_epi16(u[4], k__cospi_m16_p16);
+ v[11] = _mm_madd_epi16(u[5], k__cospi_m16_p16);
+ v[12] = _mm_madd_epi16(u[6], k__cospi_m16_m16);
+ v[13] = _mm_madd_epi16(u[7], k__cospi_m16_m16);
+ v[14] = _mm_madd_epi16(u[6], k__cospi_p16_m16);
+ v[15] = _mm_madd_epi16(u[7], k__cospi_p16_m16);
+
+ u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
+ u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
+ u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
+ u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
+ u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
+ u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
+ u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
+ u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
+ u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING);
+ u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING);
+ u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING);
+ u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING);
+ u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING);
+ u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING);
+ u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING);
+ u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING);
+
+ v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+ v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
+ v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
+ v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
+ v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
+ v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
+ v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
+ v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
+ v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
+
+ in[0] = s[0];
+ in[1] = _mm_sub_epi16(kZero, s[8]);
+ in[2] = s[12];
+ in[3] = _mm_sub_epi16(kZero, s[4]);
+ in[4] = _mm_packs_epi32(v[4], v[5]);
+ in[5] = _mm_packs_epi32(v[12], v[13]);
+ in[6] = _mm_packs_epi32(v[8], v[9]);
+ in[7] = _mm_packs_epi32(v[0], v[1]);
+ in[8] = _mm_packs_epi32(v[2], v[3]);
+ in[9] = _mm_packs_epi32(v[10], v[11]);
+ in[10] = _mm_packs_epi32(v[14], v[15]);
+ in[11] = _mm_packs_epi32(v[6], v[7]);
+ in[12] = s[5];
+ in[13] = _mm_sub_epi16(kZero, s[13]);
+ in[14] = s[9];
+ in[15] = _mm_sub_epi16(kZero, s[1]);
+}
+
+void fdct16_1d_sse2(__m128i *in0, __m128i *in1) {
+ fdct16_1d_8col(in0);
+ fdct16_1d_8col(in1);
+ array_transpose_16x16(in0, in1);
+}
+
+void fadst16_1d_sse2(__m128i *in0, __m128i *in1) {
+ fadst16_1d_8col(in0);
+ fadst16_1d_8col(in1);
+ array_transpose_16x16(in0, in1);
+}
+
+void vp9_short_fht16x16_sse2(int16_t *input, int16_t *output,
+ int stride, int tx_type) {
+ __m128i in0[16], in1[16];
+ load_buffer_16x16(input, in0, in1, stride);
+ switch (tx_type) {
+ case 0: // DCT_DCT
+ fdct16_1d_sse2(in0, in1);
+ right_shift_16x16(in0, in1);
+ fdct16_1d_sse2(in0, in1);
+ break;
+ case 1: // ADST_DCT
+ fadst16_1d_sse2(in0, in1);
+ right_shift_16x16(in0, in1);
+ fdct16_1d_sse2(in0, in1);
+ break;
+ case 2: // DCT_ADST
+ fdct16_1d_sse2(in0, in1);
+ right_shift_16x16(in0, in1);
+ fadst16_1d_sse2(in0, in1);
+ break;
+ case 3: // ADST_ADST
+ fadst16_1d_sse2(in0, in1);
+ right_shift_16x16(in0, in1);
+ fadst16_1d_sse2(in0, in1);
+ break;
+ default:
+ assert(0);
+ break;
+ }
+ write_buffer_16x16(output, in0, in1, 16);
+}
+
void vp9_short_fdct32x32_rd_sse2(int16_t *input,
int16_t *output_org, int pitch) {
// Calculate pre-multiplied strides
projects / libvpx / commitdiff