ref: 501efcad4a6311e4b8a919089b8aac2f54770272
parent: 3c092e2474fdcef4c9d5383d5a1fe8e8db676e5b
parent: ee5b80597e871ad1a7c3da0834cd7896ae3f1588
author: Angie Chiang <[email protected]>
date: Thu Sep 10 20:10:45 EDT 2015
Merge "Isolate vp10's fwd_txfm from vp9"
--- /dev/null
+++ b/vp10/common/vp10_fwd_txfm.c
@@ -1,0 +1,824 @@
+/*
+ * Copyright (c) 2015 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vp10/common/vp10_fwd_txfm.h"
+
+void vp10_fdct4x4_c(const int16_t *input, tran_low_t *output, int stride) {+ // The 2D transform is done with two passes which are actually pretty
+ // similar. In the first one, we transform the columns and transpose
+ // the results. In the second one, we transform the rows. To achieve that,
+ // as the first pass results are transposed, we transpose the columns (that
+ // is the transposed rows) and transpose the results (so that it goes back
+ // in normal/row positions).
+ int pass;
+ // We need an intermediate buffer between passes.
+ tran_low_t intermediate[4 * 4];
+ const int16_t *in_pass0 = input;
+ const tran_low_t *in = NULL;
+ tran_low_t *out = intermediate;
+ // Do the two transform/transpose passes
+ for (pass = 0; pass < 2; ++pass) {+ tran_high_t input[4]; // canbe16
+ tran_high_t step[4]; // canbe16
+ tran_high_t temp1, temp2; // needs32
+ int i;
+ for (i = 0; i < 4; ++i) {+ // Load inputs.
+ if (0 == pass) {+ input[0] = in_pass0[0 * stride] * 16;
+ input[1] = in_pass0[1 * stride] * 16;
+ input[2] = in_pass0[2 * stride] * 16;
+ input[3] = in_pass0[3 * stride] * 16;
+ if (i == 0 && input[0]) {+ input[0] += 1;
+ }
+ } else {+ input[0] = in[0 * 4];
+ input[1] = in[1 * 4];
+ input[2] = in[2 * 4];
+ input[3] = in[3 * 4];
+ }
+ // Transform.
+ step[0] = input[0] + input[3];
+ step[1] = input[1] + input[2];
+ step[2] = input[1] - input[2];
+ step[3] = input[0] - input[3];
+ temp1 = (step[0] + step[1]) * cospi_16_64;
+ temp2 = (step[0] - step[1]) * cospi_16_64;
+ out[0] = (tran_low_t)fdct_round_shift(temp1);
+ out[2] = (tran_low_t)fdct_round_shift(temp2);
+ temp1 = step[2] * cospi_24_64 + step[3] * cospi_8_64;
+ temp2 = -step[2] * cospi_8_64 + step[3] * cospi_24_64;
+ out[1] = (tran_low_t)fdct_round_shift(temp1);
+ out[3] = (tran_low_t)fdct_round_shift(temp2);
+ // Do next column (which is a transposed row in second/horizontal pass)
+ in_pass0++;
+ in++;
+ out += 4;
+ }
+ // Setup in/out for next pass.
+ in = intermediate;
+ out = output;
+ }
+
+ {+ int i, j;
+ for (i = 0; i < 4; ++i) {+ for (j = 0; j < 4; ++j)
+ output[j + i * 4] = (output[j + i * 4] + 1) >> 2;
+ }
+ }
+}
+
+void vp10_fdct4x4_1_c(const int16_t *input, tran_low_t *output, int stride) {+ int r, c;
+ tran_low_t sum = 0;
+ for (r = 0; r < 4; ++r)
+ for (c = 0; c < 4; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum << 1;
+ output[1] = 0;
+}
+
+void vp10_fdct8x8_c(const int16_t *input,
+ tran_low_t *final_output, int stride) {+ int i, j;
+ tran_low_t intermediate[64];
+ int pass;
+ tran_low_t *output = intermediate;
+ const tran_low_t *in = NULL;
+
+ // Transform columns
+ for (pass = 0; pass < 2; ++pass) {+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; // canbe16
+ tran_high_t t0, t1, t2, t3; // needs32
+ tran_high_t x0, x1, x2, x3; // canbe16
+
+ int i;
+ for (i = 0; i < 8; i++) {+ // stage 1
+ if (pass == 0) {+ s0 = (input[0 * stride] + input[7 * stride]) * 4;
+ s1 = (input[1 * stride] + input[6 * stride]) * 4;
+ s2 = (input[2 * stride] + input[5 * stride]) * 4;
+ s3 = (input[3 * stride] + input[4 * stride]) * 4;
+ s4 = (input[3 * stride] - input[4 * stride]) * 4;
+ s5 = (input[2 * stride] - input[5 * stride]) * 4;
+ s6 = (input[1 * stride] - input[6 * stride]) * 4;
+ s7 = (input[0 * stride] - input[7 * stride]) * 4;
+ ++input;
+ } else {+ s0 = in[0 * 8] + in[7 * 8];
+ s1 = in[1 * 8] + in[6 * 8];
+ s2 = in[2 * 8] + in[5 * 8];
+ s3 = in[3 * 8] + in[4 * 8];
+ s4 = in[3 * 8] - in[4 * 8];
+ s5 = in[2 * 8] - in[5 * 8];
+ s6 = in[1 * 8] - in[6 * 8];
+ s7 = in[0 * 8] - in[7 * 8];
+ ++in;
+ }
+
+ // fdct4(step, step);
+ x0 = s0 + s3;
+ x1 = s1 + s2;
+ x2 = s1 - s2;
+ x3 = s0 - s3;
+ t0 = (x0 + x1) * cospi_16_64;
+ t1 = (x0 - x1) * cospi_16_64;
+ t2 = x2 * cospi_24_64 + x3 * cospi_8_64;
+ t3 = -x2 * cospi_8_64 + x3 * cospi_24_64;
+ output[0] = (tran_low_t)fdct_round_shift(t0);
+ output[2] = (tran_low_t)fdct_round_shift(t2);
+ output[4] = (tran_low_t)fdct_round_shift(t1);
+ output[6] = (tran_low_t)fdct_round_shift(t3);
+
+ // Stage 2
+ t0 = (s6 - s5) * cospi_16_64;
+ t1 = (s6 + s5) * cospi_16_64;
+ t2 = fdct_round_shift(t0);
+ t3 = fdct_round_shift(t1);
+
+ // Stage 3
+ x0 = s4 + t2;
+ x1 = s4 - t2;
+ x2 = s7 - t3;
+ x3 = s7 + t3;
+
+ // Stage 4
+ t0 = x0 * cospi_28_64 + x3 * cospi_4_64;
+ t1 = x1 * cospi_12_64 + x2 * cospi_20_64;
+ t2 = x2 * cospi_12_64 + x1 * -cospi_20_64;
+ t3 = x3 * cospi_28_64 + x0 * -cospi_4_64;
+ output[1] = (tran_low_t)fdct_round_shift(t0);
+ output[3] = (tran_low_t)fdct_round_shift(t2);
+ output[5] = (tran_low_t)fdct_round_shift(t1);
+ output[7] = (tran_low_t)fdct_round_shift(t3);
+ output += 8;
+ }
+ in = intermediate;
+ output = final_output;
+ }
+
+ // Rows
+ for (i = 0; i < 8; ++i) {+ for (j = 0; j < 8; ++j)
+ final_output[j + i * 8] /= 2;
+ }
+}
+
+void vp10_fdct8x8_1_c(const int16_t *input, tran_low_t *output, int stride) {+ int r, c;
+ tran_low_t sum = 0;
+ for (r = 0; r < 8; ++r)
+ for (c = 0; c < 8; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum;
+ output[1] = 0;
+}
+
+void vp10_fdct16x16_c(const int16_t *input, tran_low_t *output, int stride) {+ // The 2D transform is done with two passes which are actually pretty
+ // similar. In the first one, we transform the columns and transpose
+ // the results. In the second one, we transform the rows. To achieve that,
+ // as the first pass results are transposed, we transpose the columns (that
+ // is the transposed rows) and transpose the results (so that it goes back
+ // in normal/row positions).
+ int pass;
+ // We need an intermediate buffer between passes.
+ tran_low_t intermediate[256];
+ const int16_t *in_pass0 = input;
+ const tran_low_t *in = NULL;
+ tran_low_t *out = intermediate;
+ // Do the two transform/transpose passes
+ for (pass = 0; pass < 2; ++pass) {+ tran_high_t step1[8]; // canbe16
+ tran_high_t step2[8]; // canbe16
+ tran_high_t step3[8]; // canbe16
+ tran_high_t input[8]; // canbe16
+ tran_high_t temp1, temp2; // needs32
+ int i;
+ for (i = 0; i < 16; i++) {+ if (0 == pass) {+ // Calculate input for the first 8 results.
+ input[0] = (in_pass0[0 * stride] + in_pass0[15 * stride]) * 4;
+ input[1] = (in_pass0[1 * stride] + in_pass0[14 * stride]) * 4;
+ input[2] = (in_pass0[2 * stride] + in_pass0[13 * stride]) * 4;
+ input[3] = (in_pass0[3 * stride] + in_pass0[12 * stride]) * 4;
+ input[4] = (in_pass0[4 * stride] + in_pass0[11 * stride]) * 4;
+ input[5] = (in_pass0[5 * stride] + in_pass0[10 * stride]) * 4;
+ input[6] = (in_pass0[6 * stride] + in_pass0[ 9 * stride]) * 4;
+ input[7] = (in_pass0[7 * stride] + in_pass0[ 8 * stride]) * 4;
+ // Calculate input for the next 8 results.
+ step1[0] = (in_pass0[7 * stride] - in_pass0[ 8 * stride]) * 4;
+ step1[1] = (in_pass0[6 * stride] - in_pass0[ 9 * stride]) * 4;
+ step1[2] = (in_pass0[5 * stride] - in_pass0[10 * stride]) * 4;
+ step1[3] = (in_pass0[4 * stride] - in_pass0[11 * stride]) * 4;
+ step1[4] = (in_pass0[3 * stride] - in_pass0[12 * stride]) * 4;
+ step1[5] = (in_pass0[2 * stride] - in_pass0[13 * stride]) * 4;
+ step1[6] = (in_pass0[1 * stride] - in_pass0[14 * stride]) * 4;
+ step1[7] = (in_pass0[0 * stride] - in_pass0[15 * stride]) * 4;
+ } else {+ // Calculate input for the first 8 results.
+ input[0] = ((in[0 * 16] + 1) >> 2) + ((in[15 * 16] + 1) >> 2);
+ input[1] = ((in[1 * 16] + 1) >> 2) + ((in[14 * 16] + 1) >> 2);
+ input[2] = ((in[2 * 16] + 1) >> 2) + ((in[13 * 16] + 1) >> 2);
+ input[3] = ((in[3 * 16] + 1) >> 2) + ((in[12 * 16] + 1) >> 2);
+ input[4] = ((in[4 * 16] + 1) >> 2) + ((in[11 * 16] + 1) >> 2);
+ input[5] = ((in[5 * 16] + 1) >> 2) + ((in[10 * 16] + 1) >> 2);
+ input[6] = ((in[6 * 16] + 1) >> 2) + ((in[ 9 * 16] + 1) >> 2);
+ input[7] = ((in[7 * 16] + 1) >> 2) + ((in[ 8 * 16] + 1) >> 2);
+ // Calculate input for the next 8 results.
+ step1[0] = ((in[7 * 16] + 1) >> 2) - ((in[ 8 * 16] + 1) >> 2);
+ step1[1] = ((in[6 * 16] + 1) >> 2) - ((in[ 9 * 16] + 1) >> 2);
+ step1[2] = ((in[5 * 16] + 1) >> 2) - ((in[10 * 16] + 1) >> 2);
+ step1[3] = ((in[4 * 16] + 1) >> 2) - ((in[11 * 16] + 1) >> 2);
+ step1[4] = ((in[3 * 16] + 1) >> 2) - ((in[12 * 16] + 1) >> 2);
+ step1[5] = ((in[2 * 16] + 1) >> 2) - ((in[13 * 16] + 1) >> 2);
+ step1[6] = ((in[1 * 16] + 1) >> 2) - ((in[14 * 16] + 1) >> 2);
+ step1[7] = ((in[0 * 16] + 1) >> 2) - ((in[15 * 16] + 1) >> 2);
+ }
+ // Work on the first eight values; fdct8(input, even_results);
+ {+ tran_high_t s0, s1, s2, s3, s4, s5, s6, s7; // canbe16
+ tran_high_t t0, t1, t2, t3; // needs32
+ tran_high_t x0, x1, x2, x3; // canbe16
+
+ // stage 1
+ s0 = input[0] + input[7];
+ s1 = input[1] + input[6];
+ s2 = input[2] + input[5];
+ s3 = input[3] + input[4];
+ s4 = input[3] - input[4];
+ s5 = input[2] - input[5];
+ s6 = input[1] - input[6];
+ s7 = input[0] - input[7];
+
+ // fdct4(step, step);
+ x0 = s0 + s3;
+ x1 = s1 + s2;
+ x2 = s1 - s2;
+ x3 = s0 - s3;
+ t0 = (x0 + x1) * cospi_16_64;
+ t1 = (x0 - x1) * cospi_16_64;
+ t2 = x3 * cospi_8_64 + x2 * cospi_24_64;
+ t3 = x3 * cospi_24_64 - x2 * cospi_8_64;
+ out[0] = (tran_low_t)fdct_round_shift(t0);
+ out[4] = (tran_low_t)fdct_round_shift(t2);
+ out[8] = (tran_low_t)fdct_round_shift(t1);
+ out[12] = (tran_low_t)fdct_round_shift(t3);
+
+ // Stage 2
+ t0 = (s6 - s5) * cospi_16_64;
+ t1 = (s6 + s5) * cospi_16_64;
+ t2 = fdct_round_shift(t0);
+ t3 = fdct_round_shift(t1);
+
+ // Stage 3
+ x0 = s4 + t2;
+ x1 = s4 - t2;
+ x2 = s7 - t3;
+ x3 = s7 + t3;
+
+ // Stage 4
+ t0 = x0 * cospi_28_64 + x3 * cospi_4_64;
+ t1 = x1 * cospi_12_64 + x2 * cospi_20_64;
+ t2 = x2 * cospi_12_64 + x1 * -cospi_20_64;
+ t3 = x3 * cospi_28_64 + x0 * -cospi_4_64;
+ out[2] = (tran_low_t)fdct_round_shift(t0);
+ out[6] = (tran_low_t)fdct_round_shift(t2);
+ out[10] = (tran_low_t)fdct_round_shift(t1);
+ out[14] = (tran_low_t)fdct_round_shift(t3);
+ }
+ // Work on the next eight values; step1 -> odd_results
+ {+ // step 2
+ temp1 = (step1[5] - step1[2]) * cospi_16_64;
+ temp2 = (step1[4] - step1[3]) * cospi_16_64;
+ step2[2] = fdct_round_shift(temp1);
+ step2[3] = fdct_round_shift(temp2);
+ temp1 = (step1[4] + step1[3]) * cospi_16_64;
+ temp2 = (step1[5] + step1[2]) * cospi_16_64;
+ step2[4] = fdct_round_shift(temp1);
+ step2[5] = fdct_round_shift(temp2);
+ // step 3
+ step3[0] = step1[0] + step2[3];
+ step3[1] = step1[1] + step2[2];
+ step3[2] = step1[1] - step2[2];
+ step3[3] = step1[0] - step2[3];
+ step3[4] = step1[7] - step2[4];
+ step3[5] = step1[6] - step2[5];
+ step3[6] = step1[6] + step2[5];
+ step3[7] = step1[7] + step2[4];
+ // step 4
+ temp1 = step3[1] * -cospi_8_64 + step3[6] * cospi_24_64;
+ temp2 = step3[2] * cospi_24_64 + step3[5] * cospi_8_64;
+ step2[1] = fdct_round_shift(temp1);
+ step2[2] = fdct_round_shift(temp2);
+ temp1 = step3[2] * cospi_8_64 - step3[5] * cospi_24_64;
+ temp2 = step3[1] * cospi_24_64 + step3[6] * cospi_8_64;
+ step2[5] = fdct_round_shift(temp1);
+ step2[6] = fdct_round_shift(temp2);
+ // step 5
+ step1[0] = step3[0] + step2[1];
+ step1[1] = step3[0] - step2[1];
+ step1[2] = step3[3] + step2[2];
+ step1[3] = step3[3] - step2[2];
+ step1[4] = step3[4] - step2[5];
+ step1[5] = step3[4] + step2[5];
+ step1[6] = step3[7] - step2[6];
+ step1[7] = step3[7] + step2[6];
+ // step 6
+ temp1 = step1[0] * cospi_30_64 + step1[7] * cospi_2_64;
+ temp2 = step1[1] * cospi_14_64 + step1[6] * cospi_18_64;
+ out[1] = (tran_low_t)fdct_round_shift(temp1);
+ out[9] = (tran_low_t)fdct_round_shift(temp2);
+ temp1 = step1[2] * cospi_22_64 + step1[5] * cospi_10_64;
+ temp2 = step1[3] * cospi_6_64 + step1[4] * cospi_26_64;
+ out[5] = (tran_low_t)fdct_round_shift(temp1);
+ out[13] = (tran_low_t)fdct_round_shift(temp2);
+ temp1 = step1[3] * -cospi_26_64 + step1[4] * cospi_6_64;
+ temp2 = step1[2] * -cospi_10_64 + step1[5] * cospi_22_64;
+ out[3] = (tran_low_t)fdct_round_shift(temp1);
+ out[11] = (tran_low_t)fdct_round_shift(temp2);
+ temp1 = step1[1] * -cospi_18_64 + step1[6] * cospi_14_64;
+ temp2 = step1[0] * -cospi_2_64 + step1[7] * cospi_30_64;
+ out[7] = (tran_low_t)fdct_round_shift(temp1);
+ out[15] = (tran_low_t)fdct_round_shift(temp2);
+ }
+ // Do next column (which is a transposed row in second/horizontal pass)
+ in++;
+ in_pass0++;
+ out += 16;
+ }
+ // Setup in/out for next pass.
+ in = intermediate;
+ out = output;
+ }
+}
+
+void vp10_fdct16x16_1_c(const int16_t *input, tran_low_t *output, int stride) {+ int r, c;
+ tran_low_t sum = 0;
+ for (r = 0; r < 16; ++r)
+ for (c = 0; c < 16; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum >> 1;
+ output[1] = 0;
+}
+
+static INLINE tran_high_t dct_32_round(tran_high_t input) {+ tran_high_t rv = ROUND_POWER_OF_TWO(input, DCT_CONST_BITS);
+ // TODO(debargha, peter.derivaz): Find new bounds for this assert,
+ // and make the bounds consts.
+ // assert(-131072 <= rv && rv <= 131071);
+ return rv;
+}
+
+static INLINE tran_high_t half_round_shift(tran_high_t input) {+ tran_high_t rv = (input + 1 + (input < 0)) >> 2;
+ return rv;
+}
+
+void vp10_fdct32(const tran_high_t *input, tran_high_t *output, int round) {+ tran_high_t step[32];
+ // Stage 1
+ step[0] = input[0] + input[(32 - 1)];
+ step[1] = input[1] + input[(32 - 2)];
+ step[2] = input[2] + input[(32 - 3)];
+ step[3] = input[3] + input[(32 - 4)];
+ step[4] = input[4] + input[(32 - 5)];
+ step[5] = input[5] + input[(32 - 6)];
+ step[6] = input[6] + input[(32 - 7)];
+ step[7] = input[7] + input[(32 - 8)];
+ step[8] = input[8] + input[(32 - 9)];
+ step[9] = input[9] + input[(32 - 10)];
+ step[10] = input[10] + input[(32 - 11)];
+ step[11] = input[11] + input[(32 - 12)];
+ step[12] = input[12] + input[(32 - 13)];
+ step[13] = input[13] + input[(32 - 14)];
+ step[14] = input[14] + input[(32 - 15)];
+ step[15] = input[15] + input[(32 - 16)];
+ step[16] = -input[16] + input[(32 - 17)];
+ step[17] = -input[17] + input[(32 - 18)];
+ step[18] = -input[18] + input[(32 - 19)];
+ step[19] = -input[19] + input[(32 - 20)];
+ step[20] = -input[20] + input[(32 - 21)];
+ step[21] = -input[21] + input[(32 - 22)];
+ step[22] = -input[22] + input[(32 - 23)];
+ step[23] = -input[23] + input[(32 - 24)];
+ step[24] = -input[24] + input[(32 - 25)];
+ step[25] = -input[25] + input[(32 - 26)];
+ step[26] = -input[26] + input[(32 - 27)];
+ step[27] = -input[27] + input[(32 - 28)];
+ step[28] = -input[28] + input[(32 - 29)];
+ step[29] = -input[29] + input[(32 - 30)];
+ step[30] = -input[30] + input[(32 - 31)];
+ step[31] = -input[31] + input[(32 - 32)];
+
+ // Stage 2
+ output[0] = step[0] + step[16 - 1];
+ output[1] = step[1] + step[16 - 2];
+ output[2] = step[2] + step[16 - 3];
+ output[3] = step[3] + step[16 - 4];
+ output[4] = step[4] + step[16 - 5];
+ output[5] = step[5] + step[16 - 6];
+ output[6] = step[6] + step[16 - 7];
+ output[7] = step[7] + step[16 - 8];
+ output[8] = -step[8] + step[16 - 9];
+ output[9] = -step[9] + step[16 - 10];
+ output[10] = -step[10] + step[16 - 11];
+ output[11] = -step[11] + step[16 - 12];
+ output[12] = -step[12] + step[16 - 13];
+ output[13] = -step[13] + step[16 - 14];
+ output[14] = -step[14] + step[16 - 15];
+ output[15] = -step[15] + step[16 - 16];
+
+ output[16] = step[16];
+ output[17] = step[17];
+ output[18] = step[18];
+ output[19] = step[19];
+
+ output[20] = dct_32_round((-step[20] + step[27]) * cospi_16_64);
+ output[21] = dct_32_round((-step[21] + step[26]) * cospi_16_64);
+ output[22] = dct_32_round((-step[22] + step[25]) * cospi_16_64);
+ output[23] = dct_32_round((-step[23] + step[24]) * cospi_16_64);
+
+ output[24] = dct_32_round((step[24] + step[23]) * cospi_16_64);
+ output[25] = dct_32_round((step[25] + step[22]) * cospi_16_64);
+ output[26] = dct_32_round((step[26] + step[21]) * cospi_16_64);
+ output[27] = dct_32_round((step[27] + step[20]) * cospi_16_64);
+
+ output[28] = step[28];
+ output[29] = step[29];
+ output[30] = step[30];
+ output[31] = step[31];
+
+ // dump the magnitude by 4, hence the intermediate values are within
+ // the range of 16 bits.
+ if (round) {+ output[0] = half_round_shift(output[0]);
+ output[1] = half_round_shift(output[1]);
+ output[2] = half_round_shift(output[2]);
+ output[3] = half_round_shift(output[3]);
+ output[4] = half_round_shift(output[4]);
+ output[5] = half_round_shift(output[5]);
+ output[6] = half_round_shift(output[6]);
+ output[7] = half_round_shift(output[7]);
+ output[8] = half_round_shift(output[8]);
+ output[9] = half_round_shift(output[9]);
+ output[10] = half_round_shift(output[10]);
+ output[11] = half_round_shift(output[11]);
+ output[12] = half_round_shift(output[12]);
+ output[13] = half_round_shift(output[13]);
+ output[14] = half_round_shift(output[14]);
+ output[15] = half_round_shift(output[15]);
+
+ output[16] = half_round_shift(output[16]);
+ output[17] = half_round_shift(output[17]);
+ output[18] = half_round_shift(output[18]);
+ output[19] = half_round_shift(output[19]);
+ output[20] = half_round_shift(output[20]);
+ output[21] = half_round_shift(output[21]);
+ output[22] = half_round_shift(output[22]);
+ output[23] = half_round_shift(output[23]);
+ output[24] = half_round_shift(output[24]);
+ output[25] = half_round_shift(output[25]);
+ output[26] = half_round_shift(output[26]);
+ output[27] = half_round_shift(output[27]);
+ output[28] = half_round_shift(output[28]);
+ output[29] = half_round_shift(output[29]);
+ output[30] = half_round_shift(output[30]);
+ output[31] = half_round_shift(output[31]);
+ }
+
+ // Stage 3
+ step[0] = output[0] + output[(8 - 1)];
+ step[1] = output[1] + output[(8 - 2)];
+ step[2] = output[2] + output[(8 - 3)];
+ step[3] = output[3] + output[(8 - 4)];
+ step[4] = -output[4] + output[(8 - 5)];
+ step[5] = -output[5] + output[(8 - 6)];
+ step[6] = -output[6] + output[(8 - 7)];
+ step[7] = -output[7] + output[(8 - 8)];
+ step[8] = output[8];
+ step[9] = output[9];
+ step[10] = dct_32_round((-output[10] + output[13]) * cospi_16_64);
+ step[11] = dct_32_round((-output[11] + output[12]) * cospi_16_64);
+ step[12] = dct_32_round((output[12] + output[11]) * cospi_16_64);
+ step[13] = dct_32_round((output[13] + output[10]) * cospi_16_64);
+ step[14] = output[14];
+ step[15] = output[15];
+
+ step[16] = output[16] + output[23];
+ step[17] = output[17] + output[22];
+ step[18] = output[18] + output[21];
+ step[19] = output[19] + output[20];
+ step[20] = -output[20] + output[19];
+ step[21] = -output[21] + output[18];
+ step[22] = -output[22] + output[17];
+ step[23] = -output[23] + output[16];
+ step[24] = -output[24] + output[31];
+ step[25] = -output[25] + output[30];
+ step[26] = -output[26] + output[29];
+ step[27] = -output[27] + output[28];
+ step[28] = output[28] + output[27];
+ step[29] = output[29] + output[26];
+ step[30] = output[30] + output[25];
+ step[31] = output[31] + output[24];
+
+ // Stage 4
+ output[0] = step[0] + step[3];
+ output[1] = step[1] + step[2];
+ output[2] = -step[2] + step[1];
+ output[3] = -step[3] + step[0];
+ output[4] = step[4];
+ output[5] = dct_32_round((-step[5] + step[6]) * cospi_16_64);
+ output[6] = dct_32_round((step[6] + step[5]) * cospi_16_64);
+ output[7] = step[7];
+ output[8] = step[8] + step[11];
+ output[9] = step[9] + step[10];
+ output[10] = -step[10] + step[9];
+ output[11] = -step[11] + step[8];
+ output[12] = -step[12] + step[15];
+ output[13] = -step[13] + step[14];
+ output[14] = step[14] + step[13];
+ output[15] = step[15] + step[12];
+
+ output[16] = step[16];
+ output[17] = step[17];
+ output[18] = dct_32_round(step[18] * -cospi_8_64 + step[29] * cospi_24_64);
+ output[19] = dct_32_round(step[19] * -cospi_8_64 + step[28] * cospi_24_64);
+ output[20] = dct_32_round(step[20] * -cospi_24_64 + step[27] * -cospi_8_64);
+ output[21] = dct_32_round(step[21] * -cospi_24_64 + step[26] * -cospi_8_64);
+ output[22] = step[22];
+ output[23] = step[23];
+ output[24] = step[24];
+ output[25] = step[25];
+ output[26] = dct_32_round(step[26] * cospi_24_64 + step[21] * -cospi_8_64);
+ output[27] = dct_32_round(step[27] * cospi_24_64 + step[20] * -cospi_8_64);
+ output[28] = dct_32_round(step[28] * cospi_8_64 + step[19] * cospi_24_64);
+ output[29] = dct_32_round(step[29] * cospi_8_64 + step[18] * cospi_24_64);
+ output[30] = step[30];
+ output[31] = step[31];
+
+ // Stage 5
+ step[0] = dct_32_round((output[0] + output[1]) * cospi_16_64);
+ step[1] = dct_32_round((-output[1] + output[0]) * cospi_16_64);
+ step[2] = dct_32_round(output[2] * cospi_24_64 + output[3] * cospi_8_64);
+ step[3] = dct_32_round(output[3] * cospi_24_64 - output[2] * cospi_8_64);
+ step[4] = output[4] + output[5];
+ step[5] = -output[5] + output[4];
+ step[6] = -output[6] + output[7];
+ step[7] = output[7] + output[6];
+ step[8] = output[8];
+ step[9] = dct_32_round(output[9] * -cospi_8_64 + output[14] * cospi_24_64);
+ step[10] = dct_32_round(output[10] * -cospi_24_64 + output[13] * -cospi_8_64);
+ step[11] = output[11];
+ step[12] = output[12];
+ step[13] = dct_32_round(output[13] * cospi_24_64 + output[10] * -cospi_8_64);
+ step[14] = dct_32_round(output[14] * cospi_8_64 + output[9] * cospi_24_64);
+ step[15] = output[15];
+
+ step[16] = output[16] + output[19];
+ step[17] = output[17] + output[18];
+ step[18] = -output[18] + output[17];
+ step[19] = -output[19] + output[16];
+ step[20] = -output[20] + output[23];
+ step[21] = -output[21] + output[22];
+ step[22] = output[22] + output[21];
+ step[23] = output[23] + output[20];
+ step[24] = output[24] + output[27];
+ step[25] = output[25] + output[26];
+ step[26] = -output[26] + output[25];
+ step[27] = -output[27] + output[24];
+ step[28] = -output[28] + output[31];
+ step[29] = -output[29] + output[30];
+ step[30] = output[30] + output[29];
+ step[31] = output[31] + output[28];
+
+ // Stage 6
+ output[0] = step[0];
+ output[1] = step[1];
+ output[2] = step[2];
+ output[3] = step[3];
+ output[4] = dct_32_round(step[4] * cospi_28_64 + step[7] * cospi_4_64);
+ output[5] = dct_32_round(step[5] * cospi_12_64 + step[6] * cospi_20_64);
+ output[6] = dct_32_round(step[6] * cospi_12_64 + step[5] * -cospi_20_64);
+ output[7] = dct_32_round(step[7] * cospi_28_64 + step[4] * -cospi_4_64);
+ output[8] = step[8] + step[9];
+ output[9] = -step[9] + step[8];
+ output[10] = -step[10] + step[11];
+ output[11] = step[11] + step[10];
+ output[12] = step[12] + step[13];
+ output[13] = -step[13] + step[12];
+ output[14] = -step[14] + step[15];
+ output[15] = step[15] + step[14];
+
+ output[16] = step[16];
+ output[17] = dct_32_round(step[17] * -cospi_4_64 + step[30] * cospi_28_64);
+ output[18] = dct_32_round(step[18] * -cospi_28_64 + step[29] * -cospi_4_64);
+ output[19] = step[19];
+ output[20] = step[20];
+ output[21] = dct_32_round(step[21] * -cospi_20_64 + step[26] * cospi_12_64);
+ output[22] = dct_32_round(step[22] * -cospi_12_64 + step[25] * -cospi_20_64);
+ output[23] = step[23];
+ output[24] = step[24];
+ output[25] = dct_32_round(step[25] * cospi_12_64 + step[22] * -cospi_20_64);
+ output[26] = dct_32_round(step[26] * cospi_20_64 + step[21] * cospi_12_64);
+ output[27] = step[27];
+ output[28] = step[28];
+ output[29] = dct_32_round(step[29] * cospi_28_64 + step[18] * -cospi_4_64);
+ output[30] = dct_32_round(step[30] * cospi_4_64 + step[17] * cospi_28_64);
+ output[31] = step[31];
+
+ // Stage 7
+ step[0] = output[0];
+ step[1] = output[1];
+ step[2] = output[2];
+ step[3] = output[3];
+ step[4] = output[4];
+ step[5] = output[5];
+ step[6] = output[6];
+ step[7] = output[7];
+ step[8] = dct_32_round(output[8] * cospi_30_64 + output[15] * cospi_2_64);
+ step[9] = dct_32_round(output[9] * cospi_14_64 + output[14] * cospi_18_64);
+ step[10] = dct_32_round(output[10] * cospi_22_64 + output[13] * cospi_10_64);
+ step[11] = dct_32_round(output[11] * cospi_6_64 + output[12] * cospi_26_64);
+ step[12] = dct_32_round(output[12] * cospi_6_64 + output[11] * -cospi_26_64);
+ step[13] = dct_32_round(output[13] * cospi_22_64 + output[10] * -cospi_10_64);
+ step[14] = dct_32_round(output[14] * cospi_14_64 + output[9] * -cospi_18_64);
+ step[15] = dct_32_round(output[15] * cospi_30_64 + output[8] * -cospi_2_64);
+
+ step[16] = output[16] + output[17];
+ step[17] = -output[17] + output[16];
+ step[18] = -output[18] + output[19];
+ step[19] = output[19] + output[18];
+ step[20] = output[20] + output[21];
+ step[21] = -output[21] + output[20];
+ step[22] = -output[22] + output[23];
+ step[23] = output[23] + output[22];
+ step[24] = output[24] + output[25];
+ step[25] = -output[25] + output[24];
+ step[26] = -output[26] + output[27];
+ step[27] = output[27] + output[26];
+ step[28] = output[28] + output[29];
+ step[29] = -output[29] + output[28];
+ step[30] = -output[30] + output[31];
+ step[31] = output[31] + output[30];
+
+ // Final stage --- outputs indices are bit-reversed.
+ output[0] = step[0];
+ output[16] = step[1];
+ output[8] = step[2];
+ output[24] = step[3];
+ output[4] = step[4];
+ output[20] = step[5];
+ output[12] = step[6];
+ output[28] = step[7];
+ output[2] = step[8];
+ output[18] = step[9];
+ output[10] = step[10];
+ output[26] = step[11];
+ output[6] = step[12];
+ output[22] = step[13];
+ output[14] = step[14];
+ output[30] = step[15];
+
+ output[1] = dct_32_round(step[16] * cospi_31_64 + step[31] * cospi_1_64);
+ output[17] = dct_32_round(step[17] * cospi_15_64 + step[30] * cospi_17_64);
+ output[9] = dct_32_round(step[18] * cospi_23_64 + step[29] * cospi_9_64);
+ output[25] = dct_32_round(step[19] * cospi_7_64 + step[28] * cospi_25_64);
+ output[5] = dct_32_round(step[20] * cospi_27_64 + step[27] * cospi_5_64);
+ output[21] = dct_32_round(step[21] * cospi_11_64 + step[26] * cospi_21_64);
+ output[13] = dct_32_round(step[22] * cospi_19_64 + step[25] * cospi_13_64);
+ output[29] = dct_32_round(step[23] * cospi_3_64 + step[24] * cospi_29_64);
+ output[3] = dct_32_round(step[24] * cospi_3_64 + step[23] * -cospi_29_64);
+ output[19] = dct_32_round(step[25] * cospi_19_64 + step[22] * -cospi_13_64);
+ output[11] = dct_32_round(step[26] * cospi_11_64 + step[21] * -cospi_21_64);
+ output[27] = dct_32_round(step[27] * cospi_27_64 + step[20] * -cospi_5_64);
+ output[7] = dct_32_round(step[28] * cospi_7_64 + step[19] * -cospi_25_64);
+ output[23] = dct_32_round(step[29] * cospi_23_64 + step[18] * -cospi_9_64);
+ output[15] = dct_32_round(step[30] * cospi_15_64 + step[17] * -cospi_17_64);
+ output[31] = dct_32_round(step[31] * cospi_31_64 + step[16] * -cospi_1_64);
+}
+
+void vp10_fdct32x32_c(const int16_t *input, tran_low_t *out, int stride) {+ int i, j;
+ tran_high_t output[32 * 32];
+
+ // Columns
+ for (i = 0; i < 32; ++i) {+ tran_high_t temp_in[32], temp_out[32];
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = input[j * stride + i] * 4;
+ vp10_fdct32(temp_in, temp_out, 0);
+ for (j = 0; j < 32; ++j)
+ output[j * 32 + i] = (temp_out[j] + 1 + (temp_out[j] > 0)) >> 2;
+ }
+
+ // Rows
+ for (i = 0; i < 32; ++i) {+ tran_high_t temp_in[32], temp_out[32];
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = output[j + i * 32];
+ vp10_fdct32(temp_in, temp_out, 0);
+ for (j = 0; j < 32; ++j)
+ out[j + i * 32] =
+ (tran_low_t)((temp_out[j] + 1 + (temp_out[j] < 0)) >> 2);
+ }
+}
+
+// Note that although we use dct_32_round in dct32 computation flow,
+// this 2d fdct32x32 for rate-distortion optimization loop is operating
+// within 16 bits precision.
+void vp10_fdct32x32_rd_c(const int16_t *input, tran_low_t *out, int stride) {+ int i, j;
+ tran_high_t output[32 * 32];
+
+ // Columns
+ for (i = 0; i < 32; ++i) {+ tran_high_t temp_in[32], temp_out[32];
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = input[j * stride + i] * 4;
+ vp10_fdct32(temp_in, temp_out, 0);
+ for (j = 0; j < 32; ++j)
+ // TODO(cd): see quality impact of only doing
+ // output[j * 32 + i] = (temp_out[j] + 1) >> 2;
+ // PS: also change code in vp10_dsp/x86/vp10_dct_sse2.c
+ output[j * 32 + i] = (temp_out[j] + 1 + (temp_out[j] > 0)) >> 2;
+ }
+
+ // Rows
+ for (i = 0; i < 32; ++i) {+ tran_high_t temp_in[32], temp_out[32];
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = output[j + i * 32];
+ vp10_fdct32(temp_in, temp_out, 1);
+ for (j = 0; j < 32; ++j)
+ out[j + i * 32] = (tran_low_t)temp_out[j];
+ }
+}
+
+void vp10_fdct32x32_1_c(const int16_t *input, tran_low_t *output, int stride) {+ int r, c;
+ tran_low_t sum = 0;
+ for (r = 0; r < 32; ++r)
+ for (c = 0; c < 32; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum >> 3;
+ output[1] = 0;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp10_highbd_fdct4x4_c(const int16_t *input, tran_low_t *output,
+ int stride) {+ vp10_fdct4x4_c(input, output, stride);
+}
+
+void vp10_highbd_fdct8x8_c(const int16_t *input, tran_low_t *final_output,
+ int stride) {+ vp10_fdct8x8_c(input, final_output, stride);
+}
+
+void vp10_highbd_fdct8x8_1_c(const int16_t *input, tran_low_t *final_output,
+ int stride) {+ vp10_fdct8x8_1_c(input, final_output, stride);
+}
+
+void vp10_highbd_fdct16x16_c(const int16_t *input, tran_low_t *output,
+ int stride) {+ vp10_fdct16x16_c(input, output, stride);
+}
+
+void vp10_highbd_fdct16x16_1_c(const int16_t *input, tran_low_t *output,
+ int stride) {+ vp10_fdct16x16_1_c(input, output, stride);
+}
+
+void vp10_highbd_fdct32x32_c(const int16_t *input,
+ tran_low_t *out, int stride) {+ vp10_fdct32x32_c(input, out, stride);
+}
+
+void vp10_highbd_fdct32x32_rd_c(const int16_t *input, tran_low_t *out,
+ int stride) {+ vp10_fdct32x32_rd_c(input, out, stride);
+}
+
+void vp10_highbd_fdct32x32_1_c(const int16_t *input,
+ tran_low_t *out, int stride) {+ vp10_fdct32x32_1_c(input, out, stride);
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
--- /dev/null
+++ b/vp10/common/vp10_fwd_txfm.h
@@ -1,0 +1,18 @@
+/*
+ * Copyright (c) 2015 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP10_COMMON_VP10_FWD_TXFM_H_
+#define VP10_COMMON_VP10_FWD_TXFM_H_
+
+#include "vpx_dsp/txfm_common.h"
+#include "vpx_dsp/fwd_txfm.h"
+
+void vp10_fdct32(const tran_high_t *input, tran_high_t *output, int round);
+#endif // VP10_COMMON_VP10_FWD_TXFM_H_
--- a/vp10/common/vp10_rtcd_defs.pl
+++ b/vp10/common/vp10_rtcd_defs.pl
@@ -95,6 +95,57 @@
add_proto qw/void vp10_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
specialize qw/vp10_iht16x16_256_add/;
+
+ add_proto qw/void vp10_fdct4x4/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct4x4 sse2/;
+
+ add_proto qw/void vp10_fdct4x4_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct4x4_1 sse2/;
+
+ add_proto qw/void vp10_fdct8x8/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct8x8 sse2/;
+
+ add_proto qw/void vp10_fdct8x8_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct8x8_1 sse2/;
+
+ add_proto qw/void vp10_fdct16x16/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct16x16 sse2/;
+
+ add_proto qw/void vp10_fdct16x16_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct16x16_1 sse2/;
+
+ add_proto qw/void vp10_fdct32x32/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32 sse2/;
+
+ add_proto qw/void vp10_fdct32x32_rd/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32_rd sse2/;
+
+ add_proto qw/void vp10_fdct32x32_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32_1 sse2/;
+
+ add_proto qw/void vp10_highbd_fdct4x4/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct4x4 sse2/;
+
+ add_proto qw/void vp10_highbd_fdct8x8/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct8x8 sse2/;
+
+ add_proto qw/void vp10_highbd_fdct8x8_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct8x8_1/;
+
+ add_proto qw/void vp10_highbd_fdct16x16/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct16x16 sse2/;
+
+ add_proto qw/void vp10_highbd_fdct16x16_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct16x16_1/;
+
+ add_proto qw/void vp10_highbd_fdct32x32/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct32x32 sse2/;
+
+ add_proto qw/void vp10_highbd_fdct32x32_rd/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct32x32_rd sse2/;
+
+ add_proto qw/void vp10_highbd_fdct32x32_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_highbd_fdct32x32_1/;
} else {# Force C versions if CONFIG_EMULATE_HARDWARE is 1
if (vpx_config("CONFIG_EMULATE_HARDWARE") eq "yes") {@@ -106,6 +157,33 @@
add_proto qw/void vp10_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
specialize qw/vp10_iht16x16_256_add/;
+
+ add_proto qw/void vp10_fdct4x4/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct4x4/;
+
+ add_proto qw/void vp10_fdct4x4_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct4x4_1/;
+
+ add_proto qw/void vp10_fdct8x8/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct8x8/;
+
+ add_proto qw/void vp10_fdct8x8_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct8x8_1/;
+
+ add_proto qw/void vp10_fdct16x16/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct16x16/;
+
+ add_proto qw/void vp10_fdct16x16_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct16x16_1/;
+
+ add_proto qw/void vp10_fdct32x32/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32/;
+
+ add_proto qw/void vp10_fdct32x32_rd/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32_rd/;
+
+ add_proto qw/void vp10_fdct32x32_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32_1/;
} else {add_proto qw/void vp10_iht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
specialize qw/vp10_iht4x4_16_add sse2 neon dspr2 msa/;
@@ -115,6 +193,33 @@
add_proto qw/void vp10_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
specialize qw/vp10_iht16x16_256_add sse2 dspr2 msa/;
+
+ add_proto qw/void vp10_fdct4x4/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct4x4 sse2/;
+
+ add_proto qw/void vp10_fdct4x4_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct4x4_1 sse2/;
+
+ add_proto qw/void vp10_fdct8x8/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct8x8 sse2/;
+
+ add_proto qw/void vp10_fdct8x8_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct8x8_1 sse2/;
+
+ add_proto qw/void vp10_fdct16x16/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct16x16 sse2/;
+
+ add_proto qw/void vp10_fdct16x16_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct16x16_1 sse2/;
+
+ add_proto qw/void vp10_fdct32x32/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32 sse2/;
+
+ add_proto qw/void vp10_fdct32x32_rd/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32_rd sse2/;
+
+ add_proto qw/void vp10_fdct32x32_1/, "const int16_t *input, tran_low_t *output, int stride";
+ specialize qw/vp10_fdct32x32_1 sse2/;
}
}
--- /dev/null
+++ b/vp10/common/x86/vp10_fwd_dct32x32_impl_sse2.h
@@ -1,0 +1,3153 @@
+/*
+ * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <emmintrin.h> // SSE2
+
+#include "vp10/common/vp10_fwd_txfm.h"
+#include "vpx_dsp/txfm_common.h"
+#include "vpx_dsp/x86/txfm_common_sse2.h"
+
+// TODO(jingning) The high bit-depth version needs re-work for performance.
+// The current SSE2 implementation also causes cross reference to the static
+// functions in the C implementation file.
+#if DCT_HIGH_BIT_DEPTH
+#define ADD_EPI16 _mm_adds_epi16
+#define SUB_EPI16 _mm_subs_epi16
+#if FDCT32x32_HIGH_PRECISION
+void vp10_fdct32x32_rows_c(const int16_t *intermediate, tran_low_t *out) {+ int i, j;
+ for (i = 0; i < 32; ++i) {+ tran_high_t temp_in[32], temp_out[32];
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = intermediate[j * 32 + i];
+ vp10_fdct32(temp_in, temp_out, 0);
+ for (j = 0; j < 32; ++j)
+ out[j + i * 32] =
+ (tran_low_t)((temp_out[j] + 1 + (temp_out[j] < 0)) >> 2);
+ }
+}
+ #define HIGH_FDCT32x32_2D_C vp10_highbd_fdct32x32_c
+ #define HIGH_FDCT32x32_2D_ROWS_C vp10_fdct32x32_rows_c
+#else
+void vp10_fdct32x32_rd_rows_c(const int16_t *intermediate, tran_low_t *out) {+ int i, j;
+ for (i = 0; i < 32; ++i) {+ tran_high_t temp_in[32], temp_out[32];
+ for (j = 0; j < 32; ++j)
+ temp_in[j] = intermediate[j * 32 + i];
+ vp10_fdct32(temp_in, temp_out, 1);
+ for (j = 0; j < 32; ++j)
+ out[j + i * 32] = (tran_low_t)temp_out[j];
+ }
+}
+ #define HIGH_FDCT32x32_2D_C vp10_highbd_fdct32x32_rd_c
+ #define HIGH_FDCT32x32_2D_ROWS_C vp10_fdct32x32_rd_rows_c
+#endif // FDCT32x32_HIGH_PRECISION
+#else
+#define ADD_EPI16 _mm_add_epi16
+#define SUB_EPI16 _mm_sub_epi16
+#endif // DCT_HIGH_BIT_DEPTH
+
+
+void FDCT32x32_2D(const int16_t *input,
+ tran_low_t *output_org, int stride) {+ // Calculate pre-multiplied strides
+ const int str1 = stride;
+ const int str2 = 2 * stride;
+ const int str3 = 2 * stride + str1;
+ // We need an intermediate buffer between passes.
+ DECLARE_ALIGNED(16, int16_t, intermediate[32 * 32]);
+ // Constants
+ // When we use them, in one case, they are all the same. In all others
+ // it's a pair of them that we need to repeat four times. This is done
+ // by constructing the 32 bit constant corresponding to that pair.
+ const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
+ const __m128i k__cospi_p16_m16 = pair_set_epi16(+cospi_16_64, -cospi_16_64);
+ const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
+ const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
+ const __m128i k__cospi_p24_p08 = pair_set_epi16(+cospi_24_64, cospi_8_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_m04_p28 = pair_set_epi16(-cospi_4_64, cospi_28_64);
+ const __m128i k__cospi_p28_p04 = pair_set_epi16(+cospi_28_64, cospi_4_64);
+ const __m128i k__cospi_m28_m04 = pair_set_epi16(-cospi_28_64, -cospi_4_64);
+ const __m128i k__cospi_m12_m20 = pair_set_epi16(-cospi_12_64, -cospi_20_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_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_m26_p06 = pair_set_epi16(-cospi_26_64, cospi_6_64);
+ const __m128i k__cospi_m10_p22 = pair_set_epi16(-cospi_10_64, cospi_22_64);
+ const __m128i k__cospi_m18_p14 = pair_set_epi16(-cospi_18_64, cospi_14_64);
+ const __m128i k__cospi_m02_p30 = pair_set_epi16(-cospi_2_64, cospi_30_64);
+ const __m128i k__cospi_p31_p01 = pair_set_epi16(+cospi_31_64, cospi_1_64);
+ const __m128i k__cospi_p15_p17 = pair_set_epi16(+cospi_15_64, cospi_17_64);
+ const __m128i k__cospi_p23_p09 = pair_set_epi16(+cospi_23_64, cospi_9_64);
+ const __m128i k__cospi_p07_p25 = pair_set_epi16(+cospi_7_64, cospi_25_64);
+ const __m128i k__cospi_m25_p07 = pair_set_epi16(-cospi_25_64, cospi_7_64);
+ const __m128i k__cospi_m09_p23 = pair_set_epi16(-cospi_9_64, cospi_23_64);
+ const __m128i k__cospi_m17_p15 = pair_set_epi16(-cospi_17_64, cospi_15_64);
+ const __m128i k__cospi_m01_p31 = pair_set_epi16(-cospi_1_64, cospi_31_64);
+ const __m128i k__cospi_p27_p05 = pair_set_epi16(+cospi_27_64, cospi_5_64);
+ const __m128i k__cospi_p11_p21 = pair_set_epi16(+cospi_11_64, cospi_21_64);
+ const __m128i k__cospi_p19_p13 = pair_set_epi16(+cospi_19_64, cospi_13_64);
+ const __m128i k__cospi_p03_p29 = pair_set_epi16(+cospi_3_64, cospi_29_64);
+ const __m128i k__cospi_m29_p03 = pair_set_epi16(-cospi_29_64, cospi_3_64);
+ const __m128i k__cospi_m13_p19 = pair_set_epi16(-cospi_13_64, cospi_19_64);
+ const __m128i k__cospi_m21_p11 = pair_set_epi16(-cospi_21_64, cospi_11_64);
+ const __m128i k__cospi_m05_p27 = pair_set_epi16(-cospi_5_64, cospi_27_64);
+ const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
+ const __m128i kZero = _mm_set1_epi16(0);
+ const __m128i kOne = _mm_set1_epi16(1);
+ // Do the two transform/transpose passes
+ int pass;
+#if DCT_HIGH_BIT_DEPTH
+ int overflow;
+#endif
+ for (pass = 0; pass < 2; ++pass) {+ // We process eight columns (transposed rows in second pass) at a time.
+ int column_start;
+ for (column_start = 0; column_start < 32; column_start += 8) {+ __m128i step1[32];
+ __m128i step2[32];
+ __m128i step3[32];
+ __m128i out[32];
+ // Stage 1
+ // Note: even though all the loads below are aligned, using the aligned
+ // intrinsic make the code slightly slower.
+ if (0 == pass) {+ const int16_t *in = &input[column_start];
+ // step1[i] = (in[ 0 * stride] + in[(32 - 1) * stride]) << 2;
+ // Note: the next four blocks could be in a loop. That would help the
+ // instruction cache but is actually slower.
+ {+ const int16_t *ina = in + 0 * str1;
+ const int16_t *inb = in + 31 * str1;
+ __m128i *step1a = &step1[ 0];
+ __m128i *step1b = &step1[31];
+ const __m128i ina0 = _mm_loadu_si128((const __m128i *)(ina));
+ const __m128i ina1 = _mm_loadu_si128((const __m128i *)(ina + str1));
+ const __m128i ina2 = _mm_loadu_si128((const __m128i *)(ina + str2));
+ const __m128i ina3 = _mm_loadu_si128((const __m128i *)(ina + str3));
+ const __m128i inb3 = _mm_loadu_si128((const __m128i *)(inb - str3));
+ const __m128i inb2 = _mm_loadu_si128((const __m128i *)(inb - str2));
+ const __m128i inb1 = _mm_loadu_si128((const __m128i *)(inb - str1));
+ const __m128i inb0 = _mm_loadu_si128((const __m128i *)(inb));
+ step1a[ 0] = _mm_add_epi16(ina0, inb0);
+ step1a[ 1] = _mm_add_epi16(ina1, inb1);
+ step1a[ 2] = _mm_add_epi16(ina2, inb2);
+ step1a[ 3] = _mm_add_epi16(ina3, inb3);
+ step1b[-3] = _mm_sub_epi16(ina3, inb3);
+ step1b[-2] = _mm_sub_epi16(ina2, inb2);
+ step1b[-1] = _mm_sub_epi16(ina1, inb1);
+ step1b[-0] = _mm_sub_epi16(ina0, inb0);
+ step1a[ 0] = _mm_slli_epi16(step1a[ 0], 2);
+ step1a[ 1] = _mm_slli_epi16(step1a[ 1], 2);
+ step1a[ 2] = _mm_slli_epi16(step1a[ 2], 2);
+ step1a[ 3] = _mm_slli_epi16(step1a[ 3], 2);
+ step1b[-3] = _mm_slli_epi16(step1b[-3], 2);
+ step1b[-2] = _mm_slli_epi16(step1b[-2], 2);
+ step1b[-1] = _mm_slli_epi16(step1b[-1], 2);
+ step1b[-0] = _mm_slli_epi16(step1b[-0], 2);
+ }
+ {+ const int16_t *ina = in + 4 * str1;
+ const int16_t *inb = in + 27 * str1;
+ __m128i *step1a = &step1[ 4];
+ __m128i *step1b = &step1[27];
+ const __m128i ina0 = _mm_loadu_si128((const __m128i *)(ina));
+ const __m128i ina1 = _mm_loadu_si128((const __m128i *)(ina + str1));
+ const __m128i ina2 = _mm_loadu_si128((const __m128i *)(ina + str2));
+ const __m128i ina3 = _mm_loadu_si128((const __m128i *)(ina + str3));
+ const __m128i inb3 = _mm_loadu_si128((const __m128i *)(inb - str3));
+ const __m128i inb2 = _mm_loadu_si128((const __m128i *)(inb - str2));
+ const __m128i inb1 = _mm_loadu_si128((const __m128i *)(inb - str1));
+ const __m128i inb0 = _mm_loadu_si128((const __m128i *)(inb));
+ step1a[ 0] = _mm_add_epi16(ina0, inb0);
+ step1a[ 1] = _mm_add_epi16(ina1, inb1);
+ step1a[ 2] = _mm_add_epi16(ina2, inb2);
+ step1a[ 3] = _mm_add_epi16(ina3, inb3);
+ step1b[-3] = _mm_sub_epi16(ina3, inb3);
+ step1b[-2] = _mm_sub_epi16(ina2, inb2);
+ step1b[-1] = _mm_sub_epi16(ina1, inb1);
+ step1b[-0] = _mm_sub_epi16(ina0, inb0);
+ step1a[ 0] = _mm_slli_epi16(step1a[ 0], 2);
+ step1a[ 1] = _mm_slli_epi16(step1a[ 1], 2);
+ step1a[ 2] = _mm_slli_epi16(step1a[ 2], 2);
+ step1a[ 3] = _mm_slli_epi16(step1a[ 3], 2);
+ step1b[-3] = _mm_slli_epi16(step1b[-3], 2);
+ step1b[-2] = _mm_slli_epi16(step1b[-2], 2);
+ step1b[-1] = _mm_slli_epi16(step1b[-1], 2);
+ step1b[-0] = _mm_slli_epi16(step1b[-0], 2);
+ }
+ {+ const int16_t *ina = in + 8 * str1;
+ const int16_t *inb = in + 23 * str1;
+ __m128i *step1a = &step1[ 8];
+ __m128i *step1b = &step1[23];
+ const __m128i ina0 = _mm_loadu_si128((const __m128i *)(ina));
+ const __m128i ina1 = _mm_loadu_si128((const __m128i *)(ina + str1));
+ const __m128i ina2 = _mm_loadu_si128((const __m128i *)(ina + str2));
+ const __m128i ina3 = _mm_loadu_si128((const __m128i *)(ina + str3));
+ const __m128i inb3 = _mm_loadu_si128((const __m128i *)(inb - str3));
+ const __m128i inb2 = _mm_loadu_si128((const __m128i *)(inb - str2));
+ const __m128i inb1 = _mm_loadu_si128((const __m128i *)(inb - str1));
+ const __m128i inb0 = _mm_loadu_si128((const __m128i *)(inb));
+ step1a[ 0] = _mm_add_epi16(ina0, inb0);
+ step1a[ 1] = _mm_add_epi16(ina1, inb1);
+ step1a[ 2] = _mm_add_epi16(ina2, inb2);
+ step1a[ 3] = _mm_add_epi16(ina3, inb3);
+ step1b[-3] = _mm_sub_epi16(ina3, inb3);
+ step1b[-2] = _mm_sub_epi16(ina2, inb2);
+ step1b[-1] = _mm_sub_epi16(ina1, inb1);
+ step1b[-0] = _mm_sub_epi16(ina0, inb0);
+ step1a[ 0] = _mm_slli_epi16(step1a[ 0], 2);
+ step1a[ 1] = _mm_slli_epi16(step1a[ 1], 2);
+ step1a[ 2] = _mm_slli_epi16(step1a[ 2], 2);
+ step1a[ 3] = _mm_slli_epi16(step1a[ 3], 2);
+ step1b[-3] = _mm_slli_epi16(step1b[-3], 2);
+ step1b[-2] = _mm_slli_epi16(step1b[-2], 2);
+ step1b[-1] = _mm_slli_epi16(step1b[-1], 2);
+ step1b[-0] = _mm_slli_epi16(step1b[-0], 2);
+ }
+ {+ const int16_t *ina = in + 12 * str1;
+ const int16_t *inb = in + 19 * str1;
+ __m128i *step1a = &step1[12];
+ __m128i *step1b = &step1[19];
+ const __m128i ina0 = _mm_loadu_si128((const __m128i *)(ina));
+ const __m128i ina1 = _mm_loadu_si128((const __m128i *)(ina + str1));
+ const __m128i ina2 = _mm_loadu_si128((const __m128i *)(ina + str2));
+ const __m128i ina3 = _mm_loadu_si128((const __m128i *)(ina + str3));
+ const __m128i inb3 = _mm_loadu_si128((const __m128i *)(inb - str3));
+ const __m128i inb2 = _mm_loadu_si128((const __m128i *)(inb - str2));
+ const __m128i inb1 = _mm_loadu_si128((const __m128i *)(inb - str1));
+ const __m128i inb0 = _mm_loadu_si128((const __m128i *)(inb));
+ step1a[ 0] = _mm_add_epi16(ina0, inb0);
+ step1a[ 1] = _mm_add_epi16(ina1, inb1);
+ step1a[ 2] = _mm_add_epi16(ina2, inb2);
+ step1a[ 3] = _mm_add_epi16(ina3, inb3);
+ step1b[-3] = _mm_sub_epi16(ina3, inb3);
+ step1b[-2] = _mm_sub_epi16(ina2, inb2);
+ step1b[-1] = _mm_sub_epi16(ina1, inb1);
+ step1b[-0] = _mm_sub_epi16(ina0, inb0);
+ step1a[ 0] = _mm_slli_epi16(step1a[ 0], 2);
+ step1a[ 1] = _mm_slli_epi16(step1a[ 1], 2);
+ step1a[ 2] = _mm_slli_epi16(step1a[ 2], 2);
+ step1a[ 3] = _mm_slli_epi16(step1a[ 3], 2);
+ step1b[-3] = _mm_slli_epi16(step1b[-3], 2);
+ step1b[-2] = _mm_slli_epi16(step1b[-2], 2);
+ step1b[-1] = _mm_slli_epi16(step1b[-1], 2);
+ step1b[-0] = _mm_slli_epi16(step1b[-0], 2);
+ }
+ } else {+ int16_t *in = &intermediate[column_start];
+ // step1[i] = in[ 0 * 32] + in[(32 - 1) * 32];
+ // Note: using the same approach as above to have common offset is
+ // counter-productive as all offsets can be calculated at compile
+ // time.
+ // Note: the next four blocks could be in a loop. That would help the
+ // instruction cache but is actually slower.
+ {+ __m128i in00 = _mm_loadu_si128((const __m128i *)(in + 0 * 32));
+ __m128i in01 = _mm_loadu_si128((const __m128i *)(in + 1 * 32));
+ __m128i in02 = _mm_loadu_si128((const __m128i *)(in + 2 * 32));
+ __m128i in03 = _mm_loadu_si128((const __m128i *)(in + 3 * 32));
+ __m128i in28 = _mm_loadu_si128((const __m128i *)(in + 28 * 32));
+ __m128i in29 = _mm_loadu_si128((const __m128i *)(in + 29 * 32));
+ __m128i in30 = _mm_loadu_si128((const __m128i *)(in + 30 * 32));
+ __m128i in31 = _mm_loadu_si128((const __m128i *)(in + 31 * 32));
+ step1[0] = ADD_EPI16(in00, in31);
+ step1[1] = ADD_EPI16(in01, in30);
+ step1[2] = ADD_EPI16(in02, in29);
+ step1[3] = ADD_EPI16(in03, in28);
+ step1[28] = SUB_EPI16(in03, in28);
+ step1[29] = SUB_EPI16(in02, in29);
+ step1[30] = SUB_EPI16(in01, in30);
+ step1[31] = SUB_EPI16(in00, in31);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1[0], &step1[1], &step1[2],
+ &step1[3], &step1[28], &step1[29],
+ &step1[30], &step1[31]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ __m128i in04 = _mm_loadu_si128((const __m128i *)(in + 4 * 32));
+ __m128i in05 = _mm_loadu_si128((const __m128i *)(in + 5 * 32));
+ __m128i in06 = _mm_loadu_si128((const __m128i *)(in + 6 * 32));
+ __m128i in07 = _mm_loadu_si128((const __m128i *)(in + 7 * 32));
+ __m128i in24 = _mm_loadu_si128((const __m128i *)(in + 24 * 32));
+ __m128i in25 = _mm_loadu_si128((const __m128i *)(in + 25 * 32));
+ __m128i in26 = _mm_loadu_si128((const __m128i *)(in + 26 * 32));
+ __m128i in27 = _mm_loadu_si128((const __m128i *)(in + 27 * 32));
+ step1[4] = ADD_EPI16(in04, in27);
+ step1[5] = ADD_EPI16(in05, in26);
+ step1[6] = ADD_EPI16(in06, in25);
+ step1[7] = ADD_EPI16(in07, in24);
+ step1[24] = SUB_EPI16(in07, in24);
+ step1[25] = SUB_EPI16(in06, in25);
+ step1[26] = SUB_EPI16(in05, in26);
+ step1[27] = SUB_EPI16(in04, in27);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1[4], &step1[5], &step1[6],
+ &step1[7], &step1[24], &step1[25],
+ &step1[26], &step1[27]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ __m128i in08 = _mm_loadu_si128((const __m128i *)(in + 8 * 32));
+ __m128i in09 = _mm_loadu_si128((const __m128i *)(in + 9 * 32));
+ __m128i in10 = _mm_loadu_si128((const __m128i *)(in + 10 * 32));
+ __m128i in11 = _mm_loadu_si128((const __m128i *)(in + 11 * 32));
+ __m128i in20 = _mm_loadu_si128((const __m128i *)(in + 20 * 32));
+ __m128i in21 = _mm_loadu_si128((const __m128i *)(in + 21 * 32));
+ __m128i in22 = _mm_loadu_si128((const __m128i *)(in + 22 * 32));
+ __m128i in23 = _mm_loadu_si128((const __m128i *)(in + 23 * 32));
+ step1[8] = ADD_EPI16(in08, in23);
+ step1[9] = ADD_EPI16(in09, in22);
+ step1[10] = ADD_EPI16(in10, in21);
+ step1[11] = ADD_EPI16(in11, in20);
+ step1[20] = SUB_EPI16(in11, in20);
+ step1[21] = SUB_EPI16(in10, in21);
+ step1[22] = SUB_EPI16(in09, in22);
+ step1[23] = SUB_EPI16(in08, in23);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1[8], &step1[9], &step1[10],
+ &step1[11], &step1[20], &step1[21],
+ &step1[22], &step1[23]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ __m128i in12 = _mm_loadu_si128((const __m128i *)(in + 12 * 32));
+ __m128i in13 = _mm_loadu_si128((const __m128i *)(in + 13 * 32));
+ __m128i in14 = _mm_loadu_si128((const __m128i *)(in + 14 * 32));
+ __m128i in15 = _mm_loadu_si128((const __m128i *)(in + 15 * 32));
+ __m128i in16 = _mm_loadu_si128((const __m128i *)(in + 16 * 32));
+ __m128i in17 = _mm_loadu_si128((const __m128i *)(in + 17 * 32));
+ __m128i in18 = _mm_loadu_si128((const __m128i *)(in + 18 * 32));
+ __m128i in19 = _mm_loadu_si128((const __m128i *)(in + 19 * 32));
+ step1[12] = ADD_EPI16(in12, in19);
+ step1[13] = ADD_EPI16(in13, in18);
+ step1[14] = ADD_EPI16(in14, in17);
+ step1[15] = ADD_EPI16(in15, in16);
+ step1[16] = SUB_EPI16(in15, in16);
+ step1[17] = SUB_EPI16(in14, in17);
+ step1[18] = SUB_EPI16(in13, in18);
+ step1[19] = SUB_EPI16(in12, in19);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1[12], &step1[13], &step1[14],
+ &step1[15], &step1[16], &step1[17],
+ &step1[18], &step1[19]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+ // Stage 2
+ {+ step2[0] = ADD_EPI16(step1[0], step1[15]);
+ step2[1] = ADD_EPI16(step1[1], step1[14]);
+ step2[2] = ADD_EPI16(step1[2], step1[13]);
+ step2[3] = ADD_EPI16(step1[3], step1[12]);
+ step2[4] = ADD_EPI16(step1[4], step1[11]);
+ step2[5] = ADD_EPI16(step1[5], step1[10]);
+ step2[6] = ADD_EPI16(step1[6], step1[ 9]);
+ step2[7] = ADD_EPI16(step1[7], step1[ 8]);
+ step2[8] = SUB_EPI16(step1[7], step1[ 8]);
+ step2[9] = SUB_EPI16(step1[6], step1[ 9]);
+ step2[10] = SUB_EPI16(step1[5], step1[10]);
+ step2[11] = SUB_EPI16(step1[4], step1[11]);
+ step2[12] = SUB_EPI16(step1[3], step1[12]);
+ step2[13] = SUB_EPI16(step1[2], step1[13]);
+ step2[14] = SUB_EPI16(step1[1], step1[14]);
+ step2[15] = SUB_EPI16(step1[0], step1[15]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x16(
+ &step2[0], &step2[1], &step2[2], &step2[3],
+ &step2[4], &step2[5], &step2[6], &step2[7],
+ &step2[8], &step2[9], &step2[10], &step2[11],
+ &step2[12], &step2[13], &step2[14], &step2[15]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i s2_20_0 = _mm_unpacklo_epi16(step1[27], step1[20]);
+ const __m128i s2_20_1 = _mm_unpackhi_epi16(step1[27], step1[20]);
+ const __m128i s2_21_0 = _mm_unpacklo_epi16(step1[26], step1[21]);
+ const __m128i s2_21_1 = _mm_unpackhi_epi16(step1[26], step1[21]);
+ const __m128i s2_22_0 = _mm_unpacklo_epi16(step1[25], step1[22]);
+ const __m128i s2_22_1 = _mm_unpackhi_epi16(step1[25], step1[22]);
+ const __m128i s2_23_0 = _mm_unpacklo_epi16(step1[24], step1[23]);
+ const __m128i s2_23_1 = _mm_unpackhi_epi16(step1[24], step1[23]);
+ const __m128i s2_20_2 = _mm_madd_epi16(s2_20_0, k__cospi_p16_m16);
+ const __m128i s2_20_3 = _mm_madd_epi16(s2_20_1, k__cospi_p16_m16);
+ const __m128i s2_21_2 = _mm_madd_epi16(s2_21_0, k__cospi_p16_m16);
+ const __m128i s2_21_3 = _mm_madd_epi16(s2_21_1, k__cospi_p16_m16);
+ const __m128i s2_22_2 = _mm_madd_epi16(s2_22_0, k__cospi_p16_m16);
+ const __m128i s2_22_3 = _mm_madd_epi16(s2_22_1, k__cospi_p16_m16);
+ const __m128i s2_23_2 = _mm_madd_epi16(s2_23_0, k__cospi_p16_m16);
+ const __m128i s2_23_3 = _mm_madd_epi16(s2_23_1, k__cospi_p16_m16);
+ const __m128i s2_24_2 = _mm_madd_epi16(s2_23_0, k__cospi_p16_p16);
+ const __m128i s2_24_3 = _mm_madd_epi16(s2_23_1, k__cospi_p16_p16);
+ const __m128i s2_25_2 = _mm_madd_epi16(s2_22_0, k__cospi_p16_p16);
+ const __m128i s2_25_3 = _mm_madd_epi16(s2_22_1, k__cospi_p16_p16);
+ const __m128i s2_26_2 = _mm_madd_epi16(s2_21_0, k__cospi_p16_p16);
+ const __m128i s2_26_3 = _mm_madd_epi16(s2_21_1, k__cospi_p16_p16);
+ const __m128i s2_27_2 = _mm_madd_epi16(s2_20_0, k__cospi_p16_p16);
+ const __m128i s2_27_3 = _mm_madd_epi16(s2_20_1, k__cospi_p16_p16);
+ // dct_const_round_shift
+ const __m128i s2_20_4 = _mm_add_epi32(s2_20_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_20_5 = _mm_add_epi32(s2_20_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_21_4 = _mm_add_epi32(s2_21_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_21_5 = _mm_add_epi32(s2_21_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_22_4 = _mm_add_epi32(s2_22_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_22_5 = _mm_add_epi32(s2_22_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_23_4 = _mm_add_epi32(s2_23_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_23_5 = _mm_add_epi32(s2_23_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_24_4 = _mm_add_epi32(s2_24_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_24_5 = _mm_add_epi32(s2_24_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_25_4 = _mm_add_epi32(s2_25_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_25_5 = _mm_add_epi32(s2_25_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_26_4 = _mm_add_epi32(s2_26_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_26_5 = _mm_add_epi32(s2_26_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_27_4 = _mm_add_epi32(s2_27_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_27_5 = _mm_add_epi32(s2_27_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_20_6 = _mm_srai_epi32(s2_20_4, DCT_CONST_BITS);
+ const __m128i s2_20_7 = _mm_srai_epi32(s2_20_5, DCT_CONST_BITS);
+ const __m128i s2_21_6 = _mm_srai_epi32(s2_21_4, DCT_CONST_BITS);
+ const __m128i s2_21_7 = _mm_srai_epi32(s2_21_5, DCT_CONST_BITS);
+ const __m128i s2_22_6 = _mm_srai_epi32(s2_22_4, DCT_CONST_BITS);
+ const __m128i s2_22_7 = _mm_srai_epi32(s2_22_5, DCT_CONST_BITS);
+ const __m128i s2_23_6 = _mm_srai_epi32(s2_23_4, DCT_CONST_BITS);
+ const __m128i s2_23_7 = _mm_srai_epi32(s2_23_5, DCT_CONST_BITS);
+ const __m128i s2_24_6 = _mm_srai_epi32(s2_24_4, DCT_CONST_BITS);
+ const __m128i s2_24_7 = _mm_srai_epi32(s2_24_5, DCT_CONST_BITS);
+ const __m128i s2_25_6 = _mm_srai_epi32(s2_25_4, DCT_CONST_BITS);
+ const __m128i s2_25_7 = _mm_srai_epi32(s2_25_5, DCT_CONST_BITS);
+ const __m128i s2_26_6 = _mm_srai_epi32(s2_26_4, DCT_CONST_BITS);
+ const __m128i s2_26_7 = _mm_srai_epi32(s2_26_5, DCT_CONST_BITS);
+ const __m128i s2_27_6 = _mm_srai_epi32(s2_27_4, DCT_CONST_BITS);
+ const __m128i s2_27_7 = _mm_srai_epi32(s2_27_5, DCT_CONST_BITS);
+ // Combine
+ step2[20] = _mm_packs_epi32(s2_20_6, s2_20_7);
+ step2[21] = _mm_packs_epi32(s2_21_6, s2_21_7);
+ step2[22] = _mm_packs_epi32(s2_22_6, s2_22_7);
+ step2[23] = _mm_packs_epi32(s2_23_6, s2_23_7);
+ step2[24] = _mm_packs_epi32(s2_24_6, s2_24_7);
+ step2[25] = _mm_packs_epi32(s2_25_6, s2_25_7);
+ step2[26] = _mm_packs_epi32(s2_26_6, s2_26_7);
+ step2[27] = _mm_packs_epi32(s2_27_6, s2_27_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step2[20], &step2[21], &step2[22],
+ &step2[23], &step2[24], &step2[25],
+ &step2[26], &step2[27]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+
+#if !FDCT32x32_HIGH_PRECISION
+ // dump the magnitude by half, hence the intermediate values are within
+ // the range of 16 bits.
+ if (1 == pass) {+ __m128i s3_00_0 = _mm_cmplt_epi16(step2[ 0], kZero);
+ __m128i s3_01_0 = _mm_cmplt_epi16(step2[ 1], kZero);
+ __m128i s3_02_0 = _mm_cmplt_epi16(step2[ 2], kZero);
+ __m128i s3_03_0 = _mm_cmplt_epi16(step2[ 3], kZero);
+ __m128i s3_04_0 = _mm_cmplt_epi16(step2[ 4], kZero);
+ __m128i s3_05_0 = _mm_cmplt_epi16(step2[ 5], kZero);
+ __m128i s3_06_0 = _mm_cmplt_epi16(step2[ 6], kZero);
+ __m128i s3_07_0 = _mm_cmplt_epi16(step2[ 7], kZero);
+ __m128i s2_08_0 = _mm_cmplt_epi16(step2[ 8], kZero);
+ __m128i s2_09_0 = _mm_cmplt_epi16(step2[ 9], kZero);
+ __m128i s3_10_0 = _mm_cmplt_epi16(step2[10], kZero);
+ __m128i s3_11_0 = _mm_cmplt_epi16(step2[11], kZero);
+ __m128i s3_12_0 = _mm_cmplt_epi16(step2[12], kZero);
+ __m128i s3_13_0 = _mm_cmplt_epi16(step2[13], kZero);
+ __m128i s2_14_0 = _mm_cmplt_epi16(step2[14], kZero);
+ __m128i s2_15_0 = _mm_cmplt_epi16(step2[15], kZero);
+ __m128i s3_16_0 = _mm_cmplt_epi16(step1[16], kZero);
+ __m128i s3_17_0 = _mm_cmplt_epi16(step1[17], kZero);
+ __m128i s3_18_0 = _mm_cmplt_epi16(step1[18], kZero);
+ __m128i s3_19_0 = _mm_cmplt_epi16(step1[19], kZero);
+ __m128i s3_20_0 = _mm_cmplt_epi16(step2[20], kZero);
+ __m128i s3_21_0 = _mm_cmplt_epi16(step2[21], kZero);
+ __m128i s3_22_0 = _mm_cmplt_epi16(step2[22], kZero);
+ __m128i s3_23_0 = _mm_cmplt_epi16(step2[23], kZero);
+ __m128i s3_24_0 = _mm_cmplt_epi16(step2[24], kZero);
+ __m128i s3_25_0 = _mm_cmplt_epi16(step2[25], kZero);
+ __m128i s3_26_0 = _mm_cmplt_epi16(step2[26], kZero);
+ __m128i s3_27_0 = _mm_cmplt_epi16(step2[27], kZero);
+ __m128i s3_28_0 = _mm_cmplt_epi16(step1[28], kZero);
+ __m128i s3_29_0 = _mm_cmplt_epi16(step1[29], kZero);
+ __m128i s3_30_0 = _mm_cmplt_epi16(step1[30], kZero);
+ __m128i s3_31_0 = _mm_cmplt_epi16(step1[31], kZero);
+
+ step2[0] = SUB_EPI16(step2[ 0], s3_00_0);
+ step2[1] = SUB_EPI16(step2[ 1], s3_01_0);
+ step2[2] = SUB_EPI16(step2[ 2], s3_02_0);
+ step2[3] = SUB_EPI16(step2[ 3], s3_03_0);
+ step2[4] = SUB_EPI16(step2[ 4], s3_04_0);
+ step2[5] = SUB_EPI16(step2[ 5], s3_05_0);
+ step2[6] = SUB_EPI16(step2[ 6], s3_06_0);
+ step2[7] = SUB_EPI16(step2[ 7], s3_07_0);
+ step2[8] = SUB_EPI16(step2[ 8], s2_08_0);
+ step2[9] = SUB_EPI16(step2[ 9], s2_09_0);
+ step2[10] = SUB_EPI16(step2[10], s3_10_0);
+ step2[11] = SUB_EPI16(step2[11], s3_11_0);
+ step2[12] = SUB_EPI16(step2[12], s3_12_0);
+ step2[13] = SUB_EPI16(step2[13], s3_13_0);
+ step2[14] = SUB_EPI16(step2[14], s2_14_0);
+ step2[15] = SUB_EPI16(step2[15], s2_15_0);
+ step1[16] = SUB_EPI16(step1[16], s3_16_0);
+ step1[17] = SUB_EPI16(step1[17], s3_17_0);
+ step1[18] = SUB_EPI16(step1[18], s3_18_0);
+ step1[19] = SUB_EPI16(step1[19], s3_19_0);
+ step2[20] = SUB_EPI16(step2[20], s3_20_0);
+ step2[21] = SUB_EPI16(step2[21], s3_21_0);
+ step2[22] = SUB_EPI16(step2[22], s3_22_0);
+ step2[23] = SUB_EPI16(step2[23], s3_23_0);
+ step2[24] = SUB_EPI16(step2[24], s3_24_0);
+ step2[25] = SUB_EPI16(step2[25], s3_25_0);
+ step2[26] = SUB_EPI16(step2[26], s3_26_0);
+ step2[27] = SUB_EPI16(step2[27], s3_27_0);
+ step1[28] = SUB_EPI16(step1[28], s3_28_0);
+ step1[29] = SUB_EPI16(step1[29], s3_29_0);
+ step1[30] = SUB_EPI16(step1[30], s3_30_0);
+ step1[31] = SUB_EPI16(step1[31], s3_31_0);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x32(
+ &step2[0], &step2[1], &step2[2], &step2[3],
+ &step2[4], &step2[5], &step2[6], &step2[7],
+ &step2[8], &step2[9], &step2[10], &step2[11],
+ &step2[12], &step2[13], &step2[14], &step2[15],
+ &step1[16], &step1[17], &step1[18], &step1[19],
+ &step2[20], &step2[21], &step2[22], &step2[23],
+ &step2[24], &step2[25], &step2[26], &step2[27],
+ &step1[28], &step1[29], &step1[30], &step1[31]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ step2[0] = _mm_add_epi16(step2[ 0], kOne);
+ step2[1] = _mm_add_epi16(step2[ 1], kOne);
+ step2[2] = _mm_add_epi16(step2[ 2], kOne);
+ step2[3] = _mm_add_epi16(step2[ 3], kOne);
+ step2[4] = _mm_add_epi16(step2[ 4], kOne);
+ step2[5] = _mm_add_epi16(step2[ 5], kOne);
+ step2[6] = _mm_add_epi16(step2[ 6], kOne);
+ step2[7] = _mm_add_epi16(step2[ 7], kOne);
+ step2[8] = _mm_add_epi16(step2[ 8], kOne);
+ step2[9] = _mm_add_epi16(step2[ 9], kOne);
+ step2[10] = _mm_add_epi16(step2[10], kOne);
+ step2[11] = _mm_add_epi16(step2[11], kOne);
+ step2[12] = _mm_add_epi16(step2[12], kOne);
+ step2[13] = _mm_add_epi16(step2[13], kOne);
+ step2[14] = _mm_add_epi16(step2[14], kOne);
+ step2[15] = _mm_add_epi16(step2[15], kOne);
+ step1[16] = _mm_add_epi16(step1[16], kOne);
+ step1[17] = _mm_add_epi16(step1[17], kOne);
+ step1[18] = _mm_add_epi16(step1[18], kOne);
+ step1[19] = _mm_add_epi16(step1[19], kOne);
+ step2[20] = _mm_add_epi16(step2[20], kOne);
+ step2[21] = _mm_add_epi16(step2[21], kOne);
+ step2[22] = _mm_add_epi16(step2[22], kOne);
+ step2[23] = _mm_add_epi16(step2[23], kOne);
+ step2[24] = _mm_add_epi16(step2[24], kOne);
+ step2[25] = _mm_add_epi16(step2[25], kOne);
+ step2[26] = _mm_add_epi16(step2[26], kOne);
+ step2[27] = _mm_add_epi16(step2[27], kOne);
+ step1[28] = _mm_add_epi16(step1[28], kOne);
+ step1[29] = _mm_add_epi16(step1[29], kOne);
+ step1[30] = _mm_add_epi16(step1[30], kOne);
+ step1[31] = _mm_add_epi16(step1[31], kOne);
+
+ step2[0] = _mm_srai_epi16(step2[ 0], 2);
+ step2[1] = _mm_srai_epi16(step2[ 1], 2);
+ step2[2] = _mm_srai_epi16(step2[ 2], 2);
+ step2[3] = _mm_srai_epi16(step2[ 3], 2);
+ step2[4] = _mm_srai_epi16(step2[ 4], 2);
+ step2[5] = _mm_srai_epi16(step2[ 5], 2);
+ step2[6] = _mm_srai_epi16(step2[ 6], 2);
+ step2[7] = _mm_srai_epi16(step2[ 7], 2);
+ step2[8] = _mm_srai_epi16(step2[ 8], 2);
+ step2[9] = _mm_srai_epi16(step2[ 9], 2);
+ step2[10] = _mm_srai_epi16(step2[10], 2);
+ step2[11] = _mm_srai_epi16(step2[11], 2);
+ step2[12] = _mm_srai_epi16(step2[12], 2);
+ step2[13] = _mm_srai_epi16(step2[13], 2);
+ step2[14] = _mm_srai_epi16(step2[14], 2);
+ step2[15] = _mm_srai_epi16(step2[15], 2);
+ step1[16] = _mm_srai_epi16(step1[16], 2);
+ step1[17] = _mm_srai_epi16(step1[17], 2);
+ step1[18] = _mm_srai_epi16(step1[18], 2);
+ step1[19] = _mm_srai_epi16(step1[19], 2);
+ step2[20] = _mm_srai_epi16(step2[20], 2);
+ step2[21] = _mm_srai_epi16(step2[21], 2);
+ step2[22] = _mm_srai_epi16(step2[22], 2);
+ step2[23] = _mm_srai_epi16(step2[23], 2);
+ step2[24] = _mm_srai_epi16(step2[24], 2);
+ step2[25] = _mm_srai_epi16(step2[25], 2);
+ step2[26] = _mm_srai_epi16(step2[26], 2);
+ step2[27] = _mm_srai_epi16(step2[27], 2);
+ step1[28] = _mm_srai_epi16(step1[28], 2);
+ step1[29] = _mm_srai_epi16(step1[29], 2);
+ step1[30] = _mm_srai_epi16(step1[30], 2);
+ step1[31] = _mm_srai_epi16(step1[31], 2);
+ }
+#endif // !FDCT32x32_HIGH_PRECISION
+
+#if FDCT32x32_HIGH_PRECISION
+ if (pass == 0) {+#endif
+ // Stage 3
+ {+ step3[0] = ADD_EPI16(step2[(8 - 1)], step2[0]);
+ step3[1] = ADD_EPI16(step2[(8 - 2)], step2[1]);
+ step3[2] = ADD_EPI16(step2[(8 - 3)], step2[2]);
+ step3[3] = ADD_EPI16(step2[(8 - 4)], step2[3]);
+ step3[4] = SUB_EPI16(step2[(8 - 5)], step2[4]);
+ step3[5] = SUB_EPI16(step2[(8 - 6)], step2[5]);
+ step3[6] = SUB_EPI16(step2[(8 - 7)], step2[6]);
+ step3[7] = SUB_EPI16(step2[(8 - 8)], step2[7]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step3[0], &step3[1], &step3[2],
+ &step3[3], &step3[4], &step3[5],
+ &step3[6], &step3[7]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i s3_10_0 = _mm_unpacklo_epi16(step2[13], step2[10]);
+ const __m128i s3_10_1 = _mm_unpackhi_epi16(step2[13], step2[10]);
+ const __m128i s3_11_0 = _mm_unpacklo_epi16(step2[12], step2[11]);
+ const __m128i s3_11_1 = _mm_unpackhi_epi16(step2[12], step2[11]);
+ const __m128i s3_10_2 = _mm_madd_epi16(s3_10_0, k__cospi_p16_m16);
+ const __m128i s3_10_3 = _mm_madd_epi16(s3_10_1, k__cospi_p16_m16);
+ const __m128i s3_11_2 = _mm_madd_epi16(s3_11_0, k__cospi_p16_m16);
+ const __m128i s3_11_3 = _mm_madd_epi16(s3_11_1, k__cospi_p16_m16);
+ const __m128i s3_12_2 = _mm_madd_epi16(s3_11_0, k__cospi_p16_p16);
+ const __m128i s3_12_3 = _mm_madd_epi16(s3_11_1, k__cospi_p16_p16);
+ const __m128i s3_13_2 = _mm_madd_epi16(s3_10_0, k__cospi_p16_p16);
+ const __m128i s3_13_3 = _mm_madd_epi16(s3_10_1, k__cospi_p16_p16);
+ // dct_const_round_shift
+ const __m128i s3_10_4 = _mm_add_epi32(s3_10_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_10_5 = _mm_add_epi32(s3_10_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_11_4 = _mm_add_epi32(s3_11_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_11_5 = _mm_add_epi32(s3_11_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_12_4 = _mm_add_epi32(s3_12_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_12_5 = _mm_add_epi32(s3_12_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_13_4 = _mm_add_epi32(s3_13_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_13_5 = _mm_add_epi32(s3_13_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_10_6 = _mm_srai_epi32(s3_10_4, DCT_CONST_BITS);
+ const __m128i s3_10_7 = _mm_srai_epi32(s3_10_5, DCT_CONST_BITS);
+ const __m128i s3_11_6 = _mm_srai_epi32(s3_11_4, DCT_CONST_BITS);
+ const __m128i s3_11_7 = _mm_srai_epi32(s3_11_5, DCT_CONST_BITS);
+ const __m128i s3_12_6 = _mm_srai_epi32(s3_12_4, DCT_CONST_BITS);
+ const __m128i s3_12_7 = _mm_srai_epi32(s3_12_5, DCT_CONST_BITS);
+ const __m128i s3_13_6 = _mm_srai_epi32(s3_13_4, DCT_CONST_BITS);
+ const __m128i s3_13_7 = _mm_srai_epi32(s3_13_5, DCT_CONST_BITS);
+ // Combine
+ step3[10] = _mm_packs_epi32(s3_10_6, s3_10_7);
+ step3[11] = _mm_packs_epi32(s3_11_6, s3_11_7);
+ step3[12] = _mm_packs_epi32(s3_12_6, s3_12_7);
+ step3[13] = _mm_packs_epi32(s3_13_6, s3_13_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&step3[10], &step3[11],
+ &step3[12], &step3[13]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ step3[16] = ADD_EPI16(step2[23], step1[16]);
+ step3[17] = ADD_EPI16(step2[22], step1[17]);
+ step3[18] = ADD_EPI16(step2[21], step1[18]);
+ step3[19] = ADD_EPI16(step2[20], step1[19]);
+ step3[20] = SUB_EPI16(step1[19], step2[20]);
+ step3[21] = SUB_EPI16(step1[18], step2[21]);
+ step3[22] = SUB_EPI16(step1[17], step2[22]);
+ step3[23] = SUB_EPI16(step1[16], step2[23]);
+ step3[24] = SUB_EPI16(step1[31], step2[24]);
+ step3[25] = SUB_EPI16(step1[30], step2[25]);
+ step3[26] = SUB_EPI16(step1[29], step2[26]);
+ step3[27] = SUB_EPI16(step1[28], step2[27]);
+ step3[28] = ADD_EPI16(step2[27], step1[28]);
+ step3[29] = ADD_EPI16(step2[26], step1[29]);
+ step3[30] = ADD_EPI16(step2[25], step1[30]);
+ step3[31] = ADD_EPI16(step2[24], step1[31]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x16(
+ &step3[16], &step3[17], &step3[18], &step3[19],
+ &step3[20], &step3[21], &step3[22], &step3[23],
+ &step3[24], &step3[25], &step3[26], &step3[27],
+ &step3[28], &step3[29], &step3[30], &step3[31]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+
+ // Stage 4
+ {+ step1[0] = ADD_EPI16(step3[ 3], step3[ 0]);
+ step1[1] = ADD_EPI16(step3[ 2], step3[ 1]);
+ step1[2] = SUB_EPI16(step3[ 1], step3[ 2]);
+ step1[3] = SUB_EPI16(step3[ 0], step3[ 3]);
+ step1[8] = ADD_EPI16(step3[11], step2[ 8]);
+ step1[9] = ADD_EPI16(step3[10], step2[ 9]);
+ step1[10] = SUB_EPI16(step2[ 9], step3[10]);
+ step1[11] = SUB_EPI16(step2[ 8], step3[11]);
+ step1[12] = SUB_EPI16(step2[15], step3[12]);
+ step1[13] = SUB_EPI16(step2[14], step3[13]);
+ step1[14] = ADD_EPI16(step3[13], step2[14]);
+ step1[15] = ADD_EPI16(step3[12], step2[15]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x16(
+ &step1[0], &step1[1], &step1[2], &step1[3],
+ &step1[4], &step1[5], &step1[6], &step1[7],
+ &step1[8], &step1[9], &step1[10], &step1[11],
+ &step1[12], &step1[13], &step1[14], &step1[15]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i s1_05_0 = _mm_unpacklo_epi16(step3[6], step3[5]);
+ const __m128i s1_05_1 = _mm_unpackhi_epi16(step3[6], step3[5]);
+ const __m128i s1_05_2 = _mm_madd_epi16(s1_05_0, k__cospi_p16_m16);
+ const __m128i s1_05_3 = _mm_madd_epi16(s1_05_1, k__cospi_p16_m16);
+ const __m128i s1_06_2 = _mm_madd_epi16(s1_05_0, k__cospi_p16_p16);
+ const __m128i s1_06_3 = _mm_madd_epi16(s1_05_1, k__cospi_p16_p16);
+ // dct_const_round_shift
+ const __m128i s1_05_4 = _mm_add_epi32(s1_05_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_05_5 = _mm_add_epi32(s1_05_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_06_4 = _mm_add_epi32(s1_06_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_06_5 = _mm_add_epi32(s1_06_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_05_6 = _mm_srai_epi32(s1_05_4, DCT_CONST_BITS);
+ const __m128i s1_05_7 = _mm_srai_epi32(s1_05_5, DCT_CONST_BITS);
+ const __m128i s1_06_6 = _mm_srai_epi32(s1_06_4, DCT_CONST_BITS);
+ const __m128i s1_06_7 = _mm_srai_epi32(s1_06_5, DCT_CONST_BITS);
+ // Combine
+ step1[5] = _mm_packs_epi32(s1_05_6, s1_05_7);
+ step1[6] = _mm_packs_epi32(s1_06_6, s1_06_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x2(&step1[5], &step1[6]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i s1_18_0 = _mm_unpacklo_epi16(step3[18], step3[29]);
+ const __m128i s1_18_1 = _mm_unpackhi_epi16(step3[18], step3[29]);
+ const __m128i s1_19_0 = _mm_unpacklo_epi16(step3[19], step3[28]);
+ const __m128i s1_19_1 = _mm_unpackhi_epi16(step3[19], step3[28]);
+ const __m128i s1_20_0 = _mm_unpacklo_epi16(step3[20], step3[27]);
+ const __m128i s1_20_1 = _mm_unpackhi_epi16(step3[20], step3[27]);
+ const __m128i s1_21_0 = _mm_unpacklo_epi16(step3[21], step3[26]);
+ const __m128i s1_21_1 = _mm_unpackhi_epi16(step3[21], step3[26]);
+ const __m128i s1_18_2 = _mm_madd_epi16(s1_18_0, k__cospi_m08_p24);
+ const __m128i s1_18_3 = _mm_madd_epi16(s1_18_1, k__cospi_m08_p24);
+ const __m128i s1_19_2 = _mm_madd_epi16(s1_19_0, k__cospi_m08_p24);
+ const __m128i s1_19_3 = _mm_madd_epi16(s1_19_1, k__cospi_m08_p24);
+ const __m128i s1_20_2 = _mm_madd_epi16(s1_20_0, k__cospi_m24_m08);
+ const __m128i s1_20_3 = _mm_madd_epi16(s1_20_1, k__cospi_m24_m08);
+ const __m128i s1_21_2 = _mm_madd_epi16(s1_21_0, k__cospi_m24_m08);
+ const __m128i s1_21_3 = _mm_madd_epi16(s1_21_1, k__cospi_m24_m08);
+ const __m128i s1_26_2 = _mm_madd_epi16(s1_21_0, k__cospi_m08_p24);
+ const __m128i s1_26_3 = _mm_madd_epi16(s1_21_1, k__cospi_m08_p24);
+ const __m128i s1_27_2 = _mm_madd_epi16(s1_20_0, k__cospi_m08_p24);
+ const __m128i s1_27_3 = _mm_madd_epi16(s1_20_1, k__cospi_m08_p24);
+ const __m128i s1_28_2 = _mm_madd_epi16(s1_19_0, k__cospi_p24_p08);
+ const __m128i s1_28_3 = _mm_madd_epi16(s1_19_1, k__cospi_p24_p08);
+ const __m128i s1_29_2 = _mm_madd_epi16(s1_18_0, k__cospi_p24_p08);
+ const __m128i s1_29_3 = _mm_madd_epi16(s1_18_1, k__cospi_p24_p08);
+ // dct_const_round_shift
+ const __m128i s1_18_4 = _mm_add_epi32(s1_18_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_18_5 = _mm_add_epi32(s1_18_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_19_4 = _mm_add_epi32(s1_19_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_19_5 = _mm_add_epi32(s1_19_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_20_4 = _mm_add_epi32(s1_20_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_20_5 = _mm_add_epi32(s1_20_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_21_4 = _mm_add_epi32(s1_21_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_21_5 = _mm_add_epi32(s1_21_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_26_4 = _mm_add_epi32(s1_26_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_26_5 = _mm_add_epi32(s1_26_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_27_4 = _mm_add_epi32(s1_27_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_27_5 = _mm_add_epi32(s1_27_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_28_4 = _mm_add_epi32(s1_28_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_28_5 = _mm_add_epi32(s1_28_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_29_4 = _mm_add_epi32(s1_29_2, k__DCT_CONST_ROUNDING);
+ const __m128i s1_29_5 = _mm_add_epi32(s1_29_3, k__DCT_CONST_ROUNDING);
+ const __m128i s1_18_6 = _mm_srai_epi32(s1_18_4, DCT_CONST_BITS);
+ const __m128i s1_18_7 = _mm_srai_epi32(s1_18_5, DCT_CONST_BITS);
+ const __m128i s1_19_6 = _mm_srai_epi32(s1_19_4, DCT_CONST_BITS);
+ const __m128i s1_19_7 = _mm_srai_epi32(s1_19_5, DCT_CONST_BITS);
+ const __m128i s1_20_6 = _mm_srai_epi32(s1_20_4, DCT_CONST_BITS);
+ const __m128i s1_20_7 = _mm_srai_epi32(s1_20_5, DCT_CONST_BITS);
+ const __m128i s1_21_6 = _mm_srai_epi32(s1_21_4, DCT_CONST_BITS);
+ const __m128i s1_21_7 = _mm_srai_epi32(s1_21_5, DCT_CONST_BITS);
+ const __m128i s1_26_6 = _mm_srai_epi32(s1_26_4, DCT_CONST_BITS);
+ const __m128i s1_26_7 = _mm_srai_epi32(s1_26_5, DCT_CONST_BITS);
+ const __m128i s1_27_6 = _mm_srai_epi32(s1_27_4, DCT_CONST_BITS);
+ const __m128i s1_27_7 = _mm_srai_epi32(s1_27_5, DCT_CONST_BITS);
+ const __m128i s1_28_6 = _mm_srai_epi32(s1_28_4, DCT_CONST_BITS);
+ const __m128i s1_28_7 = _mm_srai_epi32(s1_28_5, DCT_CONST_BITS);
+ const __m128i s1_29_6 = _mm_srai_epi32(s1_29_4, DCT_CONST_BITS);
+ const __m128i s1_29_7 = _mm_srai_epi32(s1_29_5, DCT_CONST_BITS);
+ // Combine
+ step1[18] = _mm_packs_epi32(s1_18_6, s1_18_7);
+ step1[19] = _mm_packs_epi32(s1_19_6, s1_19_7);
+ step1[20] = _mm_packs_epi32(s1_20_6, s1_20_7);
+ step1[21] = _mm_packs_epi32(s1_21_6, s1_21_7);
+ step1[26] = _mm_packs_epi32(s1_26_6, s1_26_7);
+ step1[27] = _mm_packs_epi32(s1_27_6, s1_27_7);
+ step1[28] = _mm_packs_epi32(s1_28_6, s1_28_7);
+ step1[29] = _mm_packs_epi32(s1_29_6, s1_29_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1[18], &step1[19], &step1[20],
+ &step1[21], &step1[26], &step1[27],
+ &step1[28], &step1[29]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // Stage 5
+ {+ step2[4] = ADD_EPI16(step1[5], step3[4]);
+ step2[5] = SUB_EPI16(step3[4], step1[5]);
+ step2[6] = SUB_EPI16(step3[7], step1[6]);
+ step2[7] = ADD_EPI16(step1[6], step3[7]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&step2[4], &step2[5],
+ &step2[6], &step2[7]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i out_00_0 = _mm_unpacklo_epi16(step1[0], step1[1]);
+ const __m128i out_00_1 = _mm_unpackhi_epi16(step1[0], step1[1]);
+ const __m128i out_08_0 = _mm_unpacklo_epi16(step1[2], step1[3]);
+ const __m128i out_08_1 = _mm_unpackhi_epi16(step1[2], step1[3]);
+ const __m128i out_00_2 = _mm_madd_epi16(out_00_0, k__cospi_p16_p16);
+ const __m128i out_00_3 = _mm_madd_epi16(out_00_1, k__cospi_p16_p16);
+ const __m128i out_16_2 = _mm_madd_epi16(out_00_0, k__cospi_p16_m16);
+ const __m128i out_16_3 = _mm_madd_epi16(out_00_1, k__cospi_p16_m16);
+ const __m128i out_08_2 = _mm_madd_epi16(out_08_0, k__cospi_p24_p08);
+ const __m128i out_08_3 = _mm_madd_epi16(out_08_1, k__cospi_p24_p08);
+ const __m128i out_24_2 = _mm_madd_epi16(out_08_0, k__cospi_m08_p24);
+ const __m128i out_24_3 = _mm_madd_epi16(out_08_1, k__cospi_m08_p24);
+ // dct_const_round_shift
+ const __m128i out_00_4 = _mm_add_epi32(out_00_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_00_5 = _mm_add_epi32(out_00_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_16_4 = _mm_add_epi32(out_16_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_16_5 = _mm_add_epi32(out_16_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_08_4 = _mm_add_epi32(out_08_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_08_5 = _mm_add_epi32(out_08_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_24_4 = _mm_add_epi32(out_24_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_24_5 = _mm_add_epi32(out_24_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_00_6 = _mm_srai_epi32(out_00_4, DCT_CONST_BITS);
+ const __m128i out_00_7 = _mm_srai_epi32(out_00_5, DCT_CONST_BITS);
+ const __m128i out_16_6 = _mm_srai_epi32(out_16_4, DCT_CONST_BITS);
+ const __m128i out_16_7 = _mm_srai_epi32(out_16_5, DCT_CONST_BITS);
+ const __m128i out_08_6 = _mm_srai_epi32(out_08_4, DCT_CONST_BITS);
+ const __m128i out_08_7 = _mm_srai_epi32(out_08_5, DCT_CONST_BITS);
+ const __m128i out_24_6 = _mm_srai_epi32(out_24_4, DCT_CONST_BITS);
+ const __m128i out_24_7 = _mm_srai_epi32(out_24_5, DCT_CONST_BITS);
+ // Combine
+ out[ 0] = _mm_packs_epi32(out_00_6, out_00_7);
+ out[16] = _mm_packs_epi32(out_16_6, out_16_7);
+ out[ 8] = _mm_packs_epi32(out_08_6, out_08_7);
+ out[24] = _mm_packs_epi32(out_24_6, out_24_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&out[0], &out[16],
+ &out[8], &out[24]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i s2_09_0 = _mm_unpacklo_epi16(step1[ 9], step1[14]);
+ const __m128i s2_09_1 = _mm_unpackhi_epi16(step1[ 9], step1[14]);
+ const __m128i s2_10_0 = _mm_unpacklo_epi16(step1[10], step1[13]);
+ const __m128i s2_10_1 = _mm_unpackhi_epi16(step1[10], step1[13]);
+ const __m128i s2_09_2 = _mm_madd_epi16(s2_09_0, k__cospi_m08_p24);
+ const __m128i s2_09_3 = _mm_madd_epi16(s2_09_1, k__cospi_m08_p24);
+ const __m128i s2_10_2 = _mm_madd_epi16(s2_10_0, k__cospi_m24_m08);
+ const __m128i s2_10_3 = _mm_madd_epi16(s2_10_1, k__cospi_m24_m08);
+ const __m128i s2_13_2 = _mm_madd_epi16(s2_10_0, k__cospi_m08_p24);
+ const __m128i s2_13_3 = _mm_madd_epi16(s2_10_1, k__cospi_m08_p24);
+ const __m128i s2_14_2 = _mm_madd_epi16(s2_09_0, k__cospi_p24_p08);
+ const __m128i s2_14_3 = _mm_madd_epi16(s2_09_1, k__cospi_p24_p08);
+ // dct_const_round_shift
+ const __m128i s2_09_4 = _mm_add_epi32(s2_09_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_09_5 = _mm_add_epi32(s2_09_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_10_4 = _mm_add_epi32(s2_10_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_10_5 = _mm_add_epi32(s2_10_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_13_4 = _mm_add_epi32(s2_13_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_13_5 = _mm_add_epi32(s2_13_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_14_4 = _mm_add_epi32(s2_14_2, k__DCT_CONST_ROUNDING);
+ const __m128i s2_14_5 = _mm_add_epi32(s2_14_3, k__DCT_CONST_ROUNDING);
+ const __m128i s2_09_6 = _mm_srai_epi32(s2_09_4, DCT_CONST_BITS);
+ const __m128i s2_09_7 = _mm_srai_epi32(s2_09_5, DCT_CONST_BITS);
+ const __m128i s2_10_6 = _mm_srai_epi32(s2_10_4, DCT_CONST_BITS);
+ const __m128i s2_10_7 = _mm_srai_epi32(s2_10_5, DCT_CONST_BITS);
+ const __m128i s2_13_6 = _mm_srai_epi32(s2_13_4, DCT_CONST_BITS);
+ const __m128i s2_13_7 = _mm_srai_epi32(s2_13_5, DCT_CONST_BITS);
+ const __m128i s2_14_6 = _mm_srai_epi32(s2_14_4, DCT_CONST_BITS);
+ const __m128i s2_14_7 = _mm_srai_epi32(s2_14_5, DCT_CONST_BITS);
+ // Combine
+ step2[ 9] = _mm_packs_epi32(s2_09_6, s2_09_7);
+ step2[10] = _mm_packs_epi32(s2_10_6, s2_10_7);
+ step2[13] = _mm_packs_epi32(s2_13_6, s2_13_7);
+ step2[14] = _mm_packs_epi32(s2_14_6, s2_14_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&step2[9], &step2[10],
+ &step2[13], &step2[14]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ step2[16] = ADD_EPI16(step1[19], step3[16]);
+ step2[17] = ADD_EPI16(step1[18], step3[17]);
+ step2[18] = SUB_EPI16(step3[17], step1[18]);
+ step2[19] = SUB_EPI16(step3[16], step1[19]);
+ step2[20] = SUB_EPI16(step3[23], step1[20]);
+ step2[21] = SUB_EPI16(step3[22], step1[21]);
+ step2[22] = ADD_EPI16(step1[21], step3[22]);
+ step2[23] = ADD_EPI16(step1[20], step3[23]);
+ step2[24] = ADD_EPI16(step1[27], step3[24]);
+ step2[25] = ADD_EPI16(step1[26], step3[25]);
+ step2[26] = SUB_EPI16(step3[25], step1[26]);
+ step2[27] = SUB_EPI16(step3[24], step1[27]);
+ step2[28] = SUB_EPI16(step3[31], step1[28]);
+ step2[29] = SUB_EPI16(step3[30], step1[29]);
+ step2[30] = ADD_EPI16(step1[29], step3[30]);
+ step2[31] = ADD_EPI16(step1[28], step3[31]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x16(
+ &step2[16], &step2[17], &step2[18], &step2[19],
+ &step2[20], &step2[21], &step2[22], &step2[23],
+ &step2[24], &step2[25], &step2[26], &step2[27],
+ &step2[28], &step2[29], &step2[30], &step2[31]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // Stage 6
+ {+ const __m128i out_04_0 = _mm_unpacklo_epi16(step2[4], step2[7]);
+ const __m128i out_04_1 = _mm_unpackhi_epi16(step2[4], step2[7]);
+ const __m128i out_20_0 = _mm_unpacklo_epi16(step2[5], step2[6]);
+ const __m128i out_20_1 = _mm_unpackhi_epi16(step2[5], step2[6]);
+ const __m128i out_12_0 = _mm_unpacklo_epi16(step2[5], step2[6]);
+ const __m128i out_12_1 = _mm_unpackhi_epi16(step2[5], step2[6]);
+ const __m128i out_28_0 = _mm_unpacklo_epi16(step2[4], step2[7]);
+ const __m128i out_28_1 = _mm_unpackhi_epi16(step2[4], step2[7]);
+ const __m128i out_04_2 = _mm_madd_epi16(out_04_0, k__cospi_p28_p04);
+ const __m128i out_04_3 = _mm_madd_epi16(out_04_1, k__cospi_p28_p04);
+ const __m128i out_20_2 = _mm_madd_epi16(out_20_0, k__cospi_p12_p20);
+ const __m128i out_20_3 = _mm_madd_epi16(out_20_1, k__cospi_p12_p20);
+ const __m128i out_12_2 = _mm_madd_epi16(out_12_0, k__cospi_m20_p12);
+ const __m128i out_12_3 = _mm_madd_epi16(out_12_1, k__cospi_m20_p12);
+ const __m128i out_28_2 = _mm_madd_epi16(out_28_0, k__cospi_m04_p28);
+ const __m128i out_28_3 = _mm_madd_epi16(out_28_1, k__cospi_m04_p28);
+ // dct_const_round_shift
+ const __m128i out_04_4 = _mm_add_epi32(out_04_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_04_5 = _mm_add_epi32(out_04_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_20_4 = _mm_add_epi32(out_20_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_20_5 = _mm_add_epi32(out_20_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_12_4 = _mm_add_epi32(out_12_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_12_5 = _mm_add_epi32(out_12_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_28_4 = _mm_add_epi32(out_28_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_28_5 = _mm_add_epi32(out_28_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_04_6 = _mm_srai_epi32(out_04_4, DCT_CONST_BITS);
+ const __m128i out_04_7 = _mm_srai_epi32(out_04_5, DCT_CONST_BITS);
+ const __m128i out_20_6 = _mm_srai_epi32(out_20_4, DCT_CONST_BITS);
+ const __m128i out_20_7 = _mm_srai_epi32(out_20_5, DCT_CONST_BITS);
+ const __m128i out_12_6 = _mm_srai_epi32(out_12_4, DCT_CONST_BITS);
+ const __m128i out_12_7 = _mm_srai_epi32(out_12_5, DCT_CONST_BITS);
+ const __m128i out_28_6 = _mm_srai_epi32(out_28_4, DCT_CONST_BITS);
+ const __m128i out_28_7 = _mm_srai_epi32(out_28_5, DCT_CONST_BITS);
+ // Combine
+ out[4] = _mm_packs_epi32(out_04_6, out_04_7);
+ out[20] = _mm_packs_epi32(out_20_6, out_20_7);
+ out[12] = _mm_packs_epi32(out_12_6, out_12_7);
+ out[28] = _mm_packs_epi32(out_28_6, out_28_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&out[4], &out[20],
+ &out[12], &out[28]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ step3[8] = ADD_EPI16(step2[ 9], step1[ 8]);
+ step3[9] = SUB_EPI16(step1[ 8], step2[ 9]);
+ step3[10] = SUB_EPI16(step1[11], step2[10]);
+ step3[11] = ADD_EPI16(step2[10], step1[11]);
+ step3[12] = ADD_EPI16(step2[13], step1[12]);
+ step3[13] = SUB_EPI16(step1[12], step2[13]);
+ step3[14] = SUB_EPI16(step1[15], step2[14]);
+ step3[15] = ADD_EPI16(step2[14], step1[15]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step3[8], &step3[9], &step3[10],
+ &step3[11], &step3[12], &step3[13],
+ &step3[14], &step3[15]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i s3_17_0 = _mm_unpacklo_epi16(step2[17], step2[30]);
+ const __m128i s3_17_1 = _mm_unpackhi_epi16(step2[17], step2[30]);
+ const __m128i s3_18_0 = _mm_unpacklo_epi16(step2[18], step2[29]);
+ const __m128i s3_18_1 = _mm_unpackhi_epi16(step2[18], step2[29]);
+ const __m128i s3_21_0 = _mm_unpacklo_epi16(step2[21], step2[26]);
+ const __m128i s3_21_1 = _mm_unpackhi_epi16(step2[21], step2[26]);
+ const __m128i s3_22_0 = _mm_unpacklo_epi16(step2[22], step2[25]);
+ const __m128i s3_22_1 = _mm_unpackhi_epi16(step2[22], step2[25]);
+ const __m128i s3_17_2 = _mm_madd_epi16(s3_17_0, k__cospi_m04_p28);
+ const __m128i s3_17_3 = _mm_madd_epi16(s3_17_1, k__cospi_m04_p28);
+ const __m128i s3_18_2 = _mm_madd_epi16(s3_18_0, k__cospi_m28_m04);
+ const __m128i s3_18_3 = _mm_madd_epi16(s3_18_1, k__cospi_m28_m04);
+ const __m128i s3_21_2 = _mm_madd_epi16(s3_21_0, k__cospi_m20_p12);
+ const __m128i s3_21_3 = _mm_madd_epi16(s3_21_1, k__cospi_m20_p12);
+ const __m128i s3_22_2 = _mm_madd_epi16(s3_22_0, k__cospi_m12_m20);
+ const __m128i s3_22_3 = _mm_madd_epi16(s3_22_1, k__cospi_m12_m20);
+ const __m128i s3_25_2 = _mm_madd_epi16(s3_22_0, k__cospi_m20_p12);
+ const __m128i s3_25_3 = _mm_madd_epi16(s3_22_1, k__cospi_m20_p12);
+ const __m128i s3_26_2 = _mm_madd_epi16(s3_21_0, k__cospi_p12_p20);
+ const __m128i s3_26_3 = _mm_madd_epi16(s3_21_1, k__cospi_p12_p20);
+ const __m128i s3_29_2 = _mm_madd_epi16(s3_18_0, k__cospi_m04_p28);
+ const __m128i s3_29_3 = _mm_madd_epi16(s3_18_1, k__cospi_m04_p28);
+ const __m128i s3_30_2 = _mm_madd_epi16(s3_17_0, k__cospi_p28_p04);
+ const __m128i s3_30_3 = _mm_madd_epi16(s3_17_1, k__cospi_p28_p04);
+ // dct_const_round_shift
+ const __m128i s3_17_4 = _mm_add_epi32(s3_17_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_17_5 = _mm_add_epi32(s3_17_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_18_4 = _mm_add_epi32(s3_18_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_18_5 = _mm_add_epi32(s3_18_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_21_4 = _mm_add_epi32(s3_21_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_21_5 = _mm_add_epi32(s3_21_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_22_4 = _mm_add_epi32(s3_22_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_22_5 = _mm_add_epi32(s3_22_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_17_6 = _mm_srai_epi32(s3_17_4, DCT_CONST_BITS);
+ const __m128i s3_17_7 = _mm_srai_epi32(s3_17_5, DCT_CONST_BITS);
+ const __m128i s3_18_6 = _mm_srai_epi32(s3_18_4, DCT_CONST_BITS);
+ const __m128i s3_18_7 = _mm_srai_epi32(s3_18_5, DCT_CONST_BITS);
+ const __m128i s3_21_6 = _mm_srai_epi32(s3_21_4, DCT_CONST_BITS);
+ const __m128i s3_21_7 = _mm_srai_epi32(s3_21_5, DCT_CONST_BITS);
+ const __m128i s3_22_6 = _mm_srai_epi32(s3_22_4, DCT_CONST_BITS);
+ const __m128i s3_22_7 = _mm_srai_epi32(s3_22_5, DCT_CONST_BITS);
+ const __m128i s3_25_4 = _mm_add_epi32(s3_25_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_25_5 = _mm_add_epi32(s3_25_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_26_4 = _mm_add_epi32(s3_26_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_26_5 = _mm_add_epi32(s3_26_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_29_4 = _mm_add_epi32(s3_29_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_29_5 = _mm_add_epi32(s3_29_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_30_4 = _mm_add_epi32(s3_30_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_30_5 = _mm_add_epi32(s3_30_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_25_6 = _mm_srai_epi32(s3_25_4, DCT_CONST_BITS);
+ const __m128i s3_25_7 = _mm_srai_epi32(s3_25_5, DCT_CONST_BITS);
+ const __m128i s3_26_6 = _mm_srai_epi32(s3_26_4, DCT_CONST_BITS);
+ const __m128i s3_26_7 = _mm_srai_epi32(s3_26_5, DCT_CONST_BITS);
+ const __m128i s3_29_6 = _mm_srai_epi32(s3_29_4, DCT_CONST_BITS);
+ const __m128i s3_29_7 = _mm_srai_epi32(s3_29_5, DCT_CONST_BITS);
+ const __m128i s3_30_6 = _mm_srai_epi32(s3_30_4, DCT_CONST_BITS);
+ const __m128i s3_30_7 = _mm_srai_epi32(s3_30_5, DCT_CONST_BITS);
+ // Combine
+ step3[17] = _mm_packs_epi32(s3_17_6, s3_17_7);
+ step3[18] = _mm_packs_epi32(s3_18_6, s3_18_7);
+ step3[21] = _mm_packs_epi32(s3_21_6, s3_21_7);
+ step3[22] = _mm_packs_epi32(s3_22_6, s3_22_7);
+ // Combine
+ step3[25] = _mm_packs_epi32(s3_25_6, s3_25_7);
+ step3[26] = _mm_packs_epi32(s3_26_6, s3_26_7);
+ step3[29] = _mm_packs_epi32(s3_29_6, s3_29_7);
+ step3[30] = _mm_packs_epi32(s3_30_6, s3_30_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step3[17], &step3[18], &step3[21],
+ &step3[22], &step3[25], &step3[26],
+ &step3[29], &step3[30]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // Stage 7
+ {+ const __m128i out_02_0 = _mm_unpacklo_epi16(step3[ 8], step3[15]);
+ const __m128i out_02_1 = _mm_unpackhi_epi16(step3[ 8], step3[15]);
+ const __m128i out_18_0 = _mm_unpacklo_epi16(step3[ 9], step3[14]);
+ const __m128i out_18_1 = _mm_unpackhi_epi16(step3[ 9], step3[14]);
+ const __m128i out_10_0 = _mm_unpacklo_epi16(step3[10], step3[13]);
+ const __m128i out_10_1 = _mm_unpackhi_epi16(step3[10], step3[13]);
+ const __m128i out_26_0 = _mm_unpacklo_epi16(step3[11], step3[12]);
+ const __m128i out_26_1 = _mm_unpackhi_epi16(step3[11], step3[12]);
+ const __m128i out_02_2 = _mm_madd_epi16(out_02_0, k__cospi_p30_p02);
+ const __m128i out_02_3 = _mm_madd_epi16(out_02_1, k__cospi_p30_p02);
+ const __m128i out_18_2 = _mm_madd_epi16(out_18_0, k__cospi_p14_p18);
+ const __m128i out_18_3 = _mm_madd_epi16(out_18_1, k__cospi_p14_p18);
+ const __m128i out_10_2 = _mm_madd_epi16(out_10_0, k__cospi_p22_p10);
+ const __m128i out_10_3 = _mm_madd_epi16(out_10_1, k__cospi_p22_p10);
+ const __m128i out_26_2 = _mm_madd_epi16(out_26_0, k__cospi_p06_p26);
+ const __m128i out_26_3 = _mm_madd_epi16(out_26_1, k__cospi_p06_p26);
+ const __m128i out_06_2 = _mm_madd_epi16(out_26_0, k__cospi_m26_p06);
+ const __m128i out_06_3 = _mm_madd_epi16(out_26_1, k__cospi_m26_p06);
+ const __m128i out_22_2 = _mm_madd_epi16(out_10_0, k__cospi_m10_p22);
+ const __m128i out_22_3 = _mm_madd_epi16(out_10_1, k__cospi_m10_p22);
+ const __m128i out_14_2 = _mm_madd_epi16(out_18_0, k__cospi_m18_p14);
+ const __m128i out_14_3 = _mm_madd_epi16(out_18_1, k__cospi_m18_p14);
+ const __m128i out_30_2 = _mm_madd_epi16(out_02_0, k__cospi_m02_p30);
+ const __m128i out_30_3 = _mm_madd_epi16(out_02_1, k__cospi_m02_p30);
+ // dct_const_round_shift
+ const __m128i out_02_4 = _mm_add_epi32(out_02_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_02_5 = _mm_add_epi32(out_02_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_18_4 = _mm_add_epi32(out_18_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_18_5 = _mm_add_epi32(out_18_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_10_4 = _mm_add_epi32(out_10_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_10_5 = _mm_add_epi32(out_10_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_26_4 = _mm_add_epi32(out_26_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_26_5 = _mm_add_epi32(out_26_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_06_4 = _mm_add_epi32(out_06_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_06_5 = _mm_add_epi32(out_06_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_22_4 = _mm_add_epi32(out_22_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_22_5 = _mm_add_epi32(out_22_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_14_4 = _mm_add_epi32(out_14_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_14_5 = _mm_add_epi32(out_14_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_30_4 = _mm_add_epi32(out_30_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_30_5 = _mm_add_epi32(out_30_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_02_6 = _mm_srai_epi32(out_02_4, DCT_CONST_BITS);
+ const __m128i out_02_7 = _mm_srai_epi32(out_02_5, DCT_CONST_BITS);
+ const __m128i out_18_6 = _mm_srai_epi32(out_18_4, DCT_CONST_BITS);
+ const __m128i out_18_7 = _mm_srai_epi32(out_18_5, DCT_CONST_BITS);
+ const __m128i out_10_6 = _mm_srai_epi32(out_10_4, DCT_CONST_BITS);
+ const __m128i out_10_7 = _mm_srai_epi32(out_10_5, DCT_CONST_BITS);
+ const __m128i out_26_6 = _mm_srai_epi32(out_26_4, DCT_CONST_BITS);
+ const __m128i out_26_7 = _mm_srai_epi32(out_26_5, DCT_CONST_BITS);
+ const __m128i out_06_6 = _mm_srai_epi32(out_06_4, DCT_CONST_BITS);
+ const __m128i out_06_7 = _mm_srai_epi32(out_06_5, DCT_CONST_BITS);
+ const __m128i out_22_6 = _mm_srai_epi32(out_22_4, DCT_CONST_BITS);
+ const __m128i out_22_7 = _mm_srai_epi32(out_22_5, DCT_CONST_BITS);
+ const __m128i out_14_6 = _mm_srai_epi32(out_14_4, DCT_CONST_BITS);
+ const __m128i out_14_7 = _mm_srai_epi32(out_14_5, DCT_CONST_BITS);
+ const __m128i out_30_6 = _mm_srai_epi32(out_30_4, DCT_CONST_BITS);
+ const __m128i out_30_7 = _mm_srai_epi32(out_30_5, DCT_CONST_BITS);
+ // Combine
+ out[ 2] = _mm_packs_epi32(out_02_6, out_02_7);
+ out[18] = _mm_packs_epi32(out_18_6, out_18_7);
+ out[10] = _mm_packs_epi32(out_10_6, out_10_7);
+ out[26] = _mm_packs_epi32(out_26_6, out_26_7);
+ out[ 6] = _mm_packs_epi32(out_06_6, out_06_7);
+ out[22] = _mm_packs_epi32(out_22_6, out_22_7);
+ out[14] = _mm_packs_epi32(out_14_6, out_14_7);
+ out[30] = _mm_packs_epi32(out_30_6, out_30_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&out[2], &out[18], &out[10],
+ &out[26], &out[6], &out[22],
+ &out[14], &out[30]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ step1[16] = ADD_EPI16(step3[17], step2[16]);
+ step1[17] = SUB_EPI16(step2[16], step3[17]);
+ step1[18] = SUB_EPI16(step2[19], step3[18]);
+ step1[19] = ADD_EPI16(step3[18], step2[19]);
+ step1[20] = ADD_EPI16(step3[21], step2[20]);
+ step1[21] = SUB_EPI16(step2[20], step3[21]);
+ step1[22] = SUB_EPI16(step2[23], step3[22]);
+ step1[23] = ADD_EPI16(step3[22], step2[23]);
+ step1[24] = ADD_EPI16(step3[25], step2[24]);
+ step1[25] = SUB_EPI16(step2[24], step3[25]);
+ step1[26] = SUB_EPI16(step2[27], step3[26]);
+ step1[27] = ADD_EPI16(step3[26], step2[27]);
+ step1[28] = ADD_EPI16(step3[29], step2[28]);
+ step1[29] = SUB_EPI16(step2[28], step3[29]);
+ step1[30] = SUB_EPI16(step2[31], step3[30]);
+ step1[31] = ADD_EPI16(step3[30], step2[31]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x16(
+ &step1[16], &step1[17], &step1[18], &step1[19],
+ &step1[20], &step1[21], &step1[22], &step1[23],
+ &step1[24], &step1[25], &step1[26], &step1[27],
+ &step1[28], &step1[29], &step1[30], &step1[31]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // Final stage --- outputs indices are bit-reversed.
+ {+ const __m128i out_01_0 = _mm_unpacklo_epi16(step1[16], step1[31]);
+ const __m128i out_01_1 = _mm_unpackhi_epi16(step1[16], step1[31]);
+ const __m128i out_17_0 = _mm_unpacklo_epi16(step1[17], step1[30]);
+ const __m128i out_17_1 = _mm_unpackhi_epi16(step1[17], step1[30]);
+ const __m128i out_09_0 = _mm_unpacklo_epi16(step1[18], step1[29]);
+ const __m128i out_09_1 = _mm_unpackhi_epi16(step1[18], step1[29]);
+ const __m128i out_25_0 = _mm_unpacklo_epi16(step1[19], step1[28]);
+ const __m128i out_25_1 = _mm_unpackhi_epi16(step1[19], step1[28]);
+ const __m128i out_01_2 = _mm_madd_epi16(out_01_0, k__cospi_p31_p01);
+ const __m128i out_01_3 = _mm_madd_epi16(out_01_1, k__cospi_p31_p01);
+ const __m128i out_17_2 = _mm_madd_epi16(out_17_0, k__cospi_p15_p17);
+ const __m128i out_17_3 = _mm_madd_epi16(out_17_1, k__cospi_p15_p17);
+ const __m128i out_09_2 = _mm_madd_epi16(out_09_0, k__cospi_p23_p09);
+ const __m128i out_09_3 = _mm_madd_epi16(out_09_1, k__cospi_p23_p09);
+ const __m128i out_25_2 = _mm_madd_epi16(out_25_0, k__cospi_p07_p25);
+ const __m128i out_25_3 = _mm_madd_epi16(out_25_1, k__cospi_p07_p25);
+ const __m128i out_07_2 = _mm_madd_epi16(out_25_0, k__cospi_m25_p07);
+ const __m128i out_07_3 = _mm_madd_epi16(out_25_1, k__cospi_m25_p07);
+ const __m128i out_23_2 = _mm_madd_epi16(out_09_0, k__cospi_m09_p23);
+ const __m128i out_23_3 = _mm_madd_epi16(out_09_1, k__cospi_m09_p23);
+ const __m128i out_15_2 = _mm_madd_epi16(out_17_0, k__cospi_m17_p15);
+ const __m128i out_15_3 = _mm_madd_epi16(out_17_1, k__cospi_m17_p15);
+ const __m128i out_31_2 = _mm_madd_epi16(out_01_0, k__cospi_m01_p31);
+ const __m128i out_31_3 = _mm_madd_epi16(out_01_1, k__cospi_m01_p31);
+ // dct_const_round_shift
+ const __m128i out_01_4 = _mm_add_epi32(out_01_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_01_5 = _mm_add_epi32(out_01_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_17_4 = _mm_add_epi32(out_17_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_17_5 = _mm_add_epi32(out_17_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_09_4 = _mm_add_epi32(out_09_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_09_5 = _mm_add_epi32(out_09_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_25_4 = _mm_add_epi32(out_25_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_25_5 = _mm_add_epi32(out_25_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_07_4 = _mm_add_epi32(out_07_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_07_5 = _mm_add_epi32(out_07_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_23_4 = _mm_add_epi32(out_23_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_23_5 = _mm_add_epi32(out_23_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_15_4 = _mm_add_epi32(out_15_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_15_5 = _mm_add_epi32(out_15_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_31_4 = _mm_add_epi32(out_31_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_31_5 = _mm_add_epi32(out_31_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_01_6 = _mm_srai_epi32(out_01_4, DCT_CONST_BITS);
+ const __m128i out_01_7 = _mm_srai_epi32(out_01_5, DCT_CONST_BITS);
+ const __m128i out_17_6 = _mm_srai_epi32(out_17_4, DCT_CONST_BITS);
+ const __m128i out_17_7 = _mm_srai_epi32(out_17_5, DCT_CONST_BITS);
+ const __m128i out_09_6 = _mm_srai_epi32(out_09_4, DCT_CONST_BITS);
+ const __m128i out_09_7 = _mm_srai_epi32(out_09_5, DCT_CONST_BITS);
+ const __m128i out_25_6 = _mm_srai_epi32(out_25_4, DCT_CONST_BITS);
+ const __m128i out_25_7 = _mm_srai_epi32(out_25_5, DCT_CONST_BITS);
+ const __m128i out_07_6 = _mm_srai_epi32(out_07_4, DCT_CONST_BITS);
+ const __m128i out_07_7 = _mm_srai_epi32(out_07_5, DCT_CONST_BITS);
+ const __m128i out_23_6 = _mm_srai_epi32(out_23_4, DCT_CONST_BITS);
+ const __m128i out_23_7 = _mm_srai_epi32(out_23_5, DCT_CONST_BITS);
+ const __m128i out_15_6 = _mm_srai_epi32(out_15_4, DCT_CONST_BITS);
+ const __m128i out_15_7 = _mm_srai_epi32(out_15_5, DCT_CONST_BITS);
+ const __m128i out_31_6 = _mm_srai_epi32(out_31_4, DCT_CONST_BITS);
+ const __m128i out_31_7 = _mm_srai_epi32(out_31_5, DCT_CONST_BITS);
+ // Combine
+ out[ 1] = _mm_packs_epi32(out_01_6, out_01_7);
+ out[17] = _mm_packs_epi32(out_17_6, out_17_7);
+ out[ 9] = _mm_packs_epi32(out_09_6, out_09_7);
+ out[25] = _mm_packs_epi32(out_25_6, out_25_7);
+ out[ 7] = _mm_packs_epi32(out_07_6, out_07_7);
+ out[23] = _mm_packs_epi32(out_23_6, out_23_7);
+ out[15] = _mm_packs_epi32(out_15_6, out_15_7);
+ out[31] = _mm_packs_epi32(out_31_6, out_31_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&out[1], &out[17], &out[9],
+ &out[25], &out[7], &out[23],
+ &out[15], &out[31]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i out_05_0 = _mm_unpacklo_epi16(step1[20], step1[27]);
+ const __m128i out_05_1 = _mm_unpackhi_epi16(step1[20], step1[27]);
+ const __m128i out_21_0 = _mm_unpacklo_epi16(step1[21], step1[26]);
+ const __m128i out_21_1 = _mm_unpackhi_epi16(step1[21], step1[26]);
+ const __m128i out_13_0 = _mm_unpacklo_epi16(step1[22], step1[25]);
+ const __m128i out_13_1 = _mm_unpackhi_epi16(step1[22], step1[25]);
+ const __m128i out_29_0 = _mm_unpacklo_epi16(step1[23], step1[24]);
+ const __m128i out_29_1 = _mm_unpackhi_epi16(step1[23], step1[24]);
+ const __m128i out_05_2 = _mm_madd_epi16(out_05_0, k__cospi_p27_p05);
+ const __m128i out_05_3 = _mm_madd_epi16(out_05_1, k__cospi_p27_p05);
+ const __m128i out_21_2 = _mm_madd_epi16(out_21_0, k__cospi_p11_p21);
+ const __m128i out_21_3 = _mm_madd_epi16(out_21_1, k__cospi_p11_p21);
+ const __m128i out_13_2 = _mm_madd_epi16(out_13_0, k__cospi_p19_p13);
+ const __m128i out_13_3 = _mm_madd_epi16(out_13_1, k__cospi_p19_p13);
+ const __m128i out_29_2 = _mm_madd_epi16(out_29_0, k__cospi_p03_p29);
+ const __m128i out_29_3 = _mm_madd_epi16(out_29_1, k__cospi_p03_p29);
+ const __m128i out_03_2 = _mm_madd_epi16(out_29_0, k__cospi_m29_p03);
+ const __m128i out_03_3 = _mm_madd_epi16(out_29_1, k__cospi_m29_p03);
+ const __m128i out_19_2 = _mm_madd_epi16(out_13_0, k__cospi_m13_p19);
+ const __m128i out_19_3 = _mm_madd_epi16(out_13_1, k__cospi_m13_p19);
+ const __m128i out_11_2 = _mm_madd_epi16(out_21_0, k__cospi_m21_p11);
+ const __m128i out_11_3 = _mm_madd_epi16(out_21_1, k__cospi_m21_p11);
+ const __m128i out_27_2 = _mm_madd_epi16(out_05_0, k__cospi_m05_p27);
+ const __m128i out_27_3 = _mm_madd_epi16(out_05_1, k__cospi_m05_p27);
+ // dct_const_round_shift
+ const __m128i out_05_4 = _mm_add_epi32(out_05_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_05_5 = _mm_add_epi32(out_05_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_21_4 = _mm_add_epi32(out_21_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_21_5 = _mm_add_epi32(out_21_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_13_4 = _mm_add_epi32(out_13_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_13_5 = _mm_add_epi32(out_13_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_29_4 = _mm_add_epi32(out_29_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_29_5 = _mm_add_epi32(out_29_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_03_4 = _mm_add_epi32(out_03_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_03_5 = _mm_add_epi32(out_03_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_19_4 = _mm_add_epi32(out_19_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_19_5 = _mm_add_epi32(out_19_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_11_4 = _mm_add_epi32(out_11_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_11_5 = _mm_add_epi32(out_11_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_27_4 = _mm_add_epi32(out_27_2, k__DCT_CONST_ROUNDING);
+ const __m128i out_27_5 = _mm_add_epi32(out_27_3, k__DCT_CONST_ROUNDING);
+ const __m128i out_05_6 = _mm_srai_epi32(out_05_4, DCT_CONST_BITS);
+ const __m128i out_05_7 = _mm_srai_epi32(out_05_5, DCT_CONST_BITS);
+ const __m128i out_21_6 = _mm_srai_epi32(out_21_4, DCT_CONST_BITS);
+ const __m128i out_21_7 = _mm_srai_epi32(out_21_5, DCT_CONST_BITS);
+ const __m128i out_13_6 = _mm_srai_epi32(out_13_4, DCT_CONST_BITS);
+ const __m128i out_13_7 = _mm_srai_epi32(out_13_5, DCT_CONST_BITS);
+ const __m128i out_29_6 = _mm_srai_epi32(out_29_4, DCT_CONST_BITS);
+ const __m128i out_29_7 = _mm_srai_epi32(out_29_5, DCT_CONST_BITS);
+ const __m128i out_03_6 = _mm_srai_epi32(out_03_4, DCT_CONST_BITS);
+ const __m128i out_03_7 = _mm_srai_epi32(out_03_5, DCT_CONST_BITS);
+ const __m128i out_19_6 = _mm_srai_epi32(out_19_4, DCT_CONST_BITS);
+ const __m128i out_19_7 = _mm_srai_epi32(out_19_5, DCT_CONST_BITS);
+ const __m128i out_11_6 = _mm_srai_epi32(out_11_4, DCT_CONST_BITS);
+ const __m128i out_11_7 = _mm_srai_epi32(out_11_5, DCT_CONST_BITS);
+ const __m128i out_27_6 = _mm_srai_epi32(out_27_4, DCT_CONST_BITS);
+ const __m128i out_27_7 = _mm_srai_epi32(out_27_5, DCT_CONST_BITS);
+ // Combine
+ out[ 5] = _mm_packs_epi32(out_05_6, out_05_7);
+ out[21] = _mm_packs_epi32(out_21_6, out_21_7);
+ out[13] = _mm_packs_epi32(out_13_6, out_13_7);
+ out[29] = _mm_packs_epi32(out_29_6, out_29_7);
+ out[ 3] = _mm_packs_epi32(out_03_6, out_03_7);
+ out[19] = _mm_packs_epi32(out_19_6, out_19_7);
+ out[11] = _mm_packs_epi32(out_11_6, out_11_7);
+ out[27] = _mm_packs_epi32(out_27_6, out_27_7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&out[5], &out[21], &out[13],
+ &out[29], &out[3], &out[19],
+ &out[11], &out[27]);
+ if (overflow) {+ if (pass == 0)
+ HIGH_FDCT32x32_2D_C(input, output_org, stride);
+ else
+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+#if FDCT32x32_HIGH_PRECISION
+ } else {+ __m128i lstep1[64], lstep2[64], lstep3[64];
+ __m128i u[32], v[32], sign[16];
+ const __m128i K32One = _mm_set_epi32(1, 1, 1, 1);
+ // start using 32-bit operations
+ // stage 3
+ {+ // expanding to 32-bit length priori to addition operations
+ lstep2[ 0] = _mm_unpacklo_epi16(step2[ 0], kZero);
+ lstep2[ 1] = _mm_unpackhi_epi16(step2[ 0], kZero);
+ lstep2[ 2] = _mm_unpacklo_epi16(step2[ 1], kZero);
+ lstep2[ 3] = _mm_unpackhi_epi16(step2[ 1], kZero);
+ lstep2[ 4] = _mm_unpacklo_epi16(step2[ 2], kZero);
+ lstep2[ 5] = _mm_unpackhi_epi16(step2[ 2], kZero);
+ lstep2[ 6] = _mm_unpacklo_epi16(step2[ 3], kZero);
+ lstep2[ 7] = _mm_unpackhi_epi16(step2[ 3], kZero);
+ lstep2[ 8] = _mm_unpacklo_epi16(step2[ 4], kZero);
+ lstep2[ 9] = _mm_unpackhi_epi16(step2[ 4], kZero);
+ lstep2[10] = _mm_unpacklo_epi16(step2[ 5], kZero);
+ lstep2[11] = _mm_unpackhi_epi16(step2[ 5], kZero);
+ lstep2[12] = _mm_unpacklo_epi16(step2[ 6], kZero);
+ lstep2[13] = _mm_unpackhi_epi16(step2[ 6], kZero);
+ lstep2[14] = _mm_unpacklo_epi16(step2[ 7], kZero);
+ lstep2[15] = _mm_unpackhi_epi16(step2[ 7], kZero);
+ lstep2[ 0] = _mm_madd_epi16(lstep2[ 0], kOne);
+ lstep2[ 1] = _mm_madd_epi16(lstep2[ 1], kOne);
+ lstep2[ 2] = _mm_madd_epi16(lstep2[ 2], kOne);
+ lstep2[ 3] = _mm_madd_epi16(lstep2[ 3], kOne);
+ lstep2[ 4] = _mm_madd_epi16(lstep2[ 4], kOne);
+ lstep2[ 5] = _mm_madd_epi16(lstep2[ 5], kOne);
+ lstep2[ 6] = _mm_madd_epi16(lstep2[ 6], kOne);
+ lstep2[ 7] = _mm_madd_epi16(lstep2[ 7], kOne);
+ lstep2[ 8] = _mm_madd_epi16(lstep2[ 8], kOne);
+ lstep2[ 9] = _mm_madd_epi16(lstep2[ 9], kOne);
+ lstep2[10] = _mm_madd_epi16(lstep2[10], kOne);
+ lstep2[11] = _mm_madd_epi16(lstep2[11], kOne);
+ lstep2[12] = _mm_madd_epi16(lstep2[12], kOne);
+ lstep2[13] = _mm_madd_epi16(lstep2[13], kOne);
+ lstep2[14] = _mm_madd_epi16(lstep2[14], kOne);
+ lstep2[15] = _mm_madd_epi16(lstep2[15], kOne);
+
+ lstep3[ 0] = _mm_add_epi32(lstep2[14], lstep2[ 0]);
+ lstep3[ 1] = _mm_add_epi32(lstep2[15], lstep2[ 1]);
+ lstep3[ 2] = _mm_add_epi32(lstep2[12], lstep2[ 2]);
+ lstep3[ 3] = _mm_add_epi32(lstep2[13], lstep2[ 3]);
+ lstep3[ 4] = _mm_add_epi32(lstep2[10], lstep2[ 4]);
+ lstep3[ 5] = _mm_add_epi32(lstep2[11], lstep2[ 5]);
+ lstep3[ 6] = _mm_add_epi32(lstep2[ 8], lstep2[ 6]);
+ lstep3[ 7] = _mm_add_epi32(lstep2[ 9], lstep2[ 7]);
+ lstep3[ 8] = _mm_sub_epi32(lstep2[ 6], lstep2[ 8]);
+ lstep3[ 9] = _mm_sub_epi32(lstep2[ 7], lstep2[ 9]);
+ lstep3[10] = _mm_sub_epi32(lstep2[ 4], lstep2[10]);
+ lstep3[11] = _mm_sub_epi32(lstep2[ 5], lstep2[11]);
+ lstep3[12] = _mm_sub_epi32(lstep2[ 2], lstep2[12]);
+ lstep3[13] = _mm_sub_epi32(lstep2[ 3], lstep2[13]);
+ lstep3[14] = _mm_sub_epi32(lstep2[ 0], lstep2[14]);
+ lstep3[15] = _mm_sub_epi32(lstep2[ 1], lstep2[15]);
+ }
+ {+ const __m128i s3_10_0 = _mm_unpacklo_epi16(step2[13], step2[10]);
+ const __m128i s3_10_1 = _mm_unpackhi_epi16(step2[13], step2[10]);
+ const __m128i s3_11_0 = _mm_unpacklo_epi16(step2[12], step2[11]);
+ const __m128i s3_11_1 = _mm_unpackhi_epi16(step2[12], step2[11]);
+ const __m128i s3_10_2 = _mm_madd_epi16(s3_10_0, k__cospi_p16_m16);
+ const __m128i s3_10_3 = _mm_madd_epi16(s3_10_1, k__cospi_p16_m16);
+ const __m128i s3_11_2 = _mm_madd_epi16(s3_11_0, k__cospi_p16_m16);
+ const __m128i s3_11_3 = _mm_madd_epi16(s3_11_1, k__cospi_p16_m16);
+ const __m128i s3_12_2 = _mm_madd_epi16(s3_11_0, k__cospi_p16_p16);
+ const __m128i s3_12_3 = _mm_madd_epi16(s3_11_1, k__cospi_p16_p16);
+ const __m128i s3_13_2 = _mm_madd_epi16(s3_10_0, k__cospi_p16_p16);
+ const __m128i s3_13_3 = _mm_madd_epi16(s3_10_1, k__cospi_p16_p16);
+ // dct_const_round_shift
+ const __m128i s3_10_4 = _mm_add_epi32(s3_10_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_10_5 = _mm_add_epi32(s3_10_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_11_4 = _mm_add_epi32(s3_11_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_11_5 = _mm_add_epi32(s3_11_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_12_4 = _mm_add_epi32(s3_12_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_12_5 = _mm_add_epi32(s3_12_3, k__DCT_CONST_ROUNDING);
+ const __m128i s3_13_4 = _mm_add_epi32(s3_13_2, k__DCT_CONST_ROUNDING);
+ const __m128i s3_13_5 = _mm_add_epi32(s3_13_3, k__DCT_CONST_ROUNDING);
+ lstep3[20] = _mm_srai_epi32(s3_10_4, DCT_CONST_BITS);
+ lstep3[21] = _mm_srai_epi32(s3_10_5, DCT_CONST_BITS);
+ lstep3[22] = _mm_srai_epi32(s3_11_4, DCT_CONST_BITS);
+ lstep3[23] = _mm_srai_epi32(s3_11_5, DCT_CONST_BITS);
+ lstep3[24] = _mm_srai_epi32(s3_12_4, DCT_CONST_BITS);
+ lstep3[25] = _mm_srai_epi32(s3_12_5, DCT_CONST_BITS);
+ lstep3[26] = _mm_srai_epi32(s3_13_4, DCT_CONST_BITS);
+ lstep3[27] = _mm_srai_epi32(s3_13_5, DCT_CONST_BITS);
+ }
+ {+ lstep2[40] = _mm_unpacklo_epi16(step2[20], kZero);
+ lstep2[41] = _mm_unpackhi_epi16(step2[20], kZero);
+ lstep2[42] = _mm_unpacklo_epi16(step2[21], kZero);
+ lstep2[43] = _mm_unpackhi_epi16(step2[21], kZero);
+ lstep2[44] = _mm_unpacklo_epi16(step2[22], kZero);
+ lstep2[45] = _mm_unpackhi_epi16(step2[22], kZero);
+ lstep2[46] = _mm_unpacklo_epi16(step2[23], kZero);
+ lstep2[47] = _mm_unpackhi_epi16(step2[23], kZero);
+ lstep2[48] = _mm_unpacklo_epi16(step2[24], kZero);
+ lstep2[49] = _mm_unpackhi_epi16(step2[24], kZero);
+ lstep2[50] = _mm_unpacklo_epi16(step2[25], kZero);
+ lstep2[51] = _mm_unpackhi_epi16(step2[25], kZero);
+ lstep2[52] = _mm_unpacklo_epi16(step2[26], kZero);
+ lstep2[53] = _mm_unpackhi_epi16(step2[26], kZero);
+ lstep2[54] = _mm_unpacklo_epi16(step2[27], kZero);
+ lstep2[55] = _mm_unpackhi_epi16(step2[27], kZero);
+ lstep2[40] = _mm_madd_epi16(lstep2[40], kOne);
+ lstep2[41] = _mm_madd_epi16(lstep2[41], kOne);
+ lstep2[42] = _mm_madd_epi16(lstep2[42], kOne);
+ lstep2[43] = _mm_madd_epi16(lstep2[43], kOne);
+ lstep2[44] = _mm_madd_epi16(lstep2[44], kOne);
+ lstep2[45] = _mm_madd_epi16(lstep2[45], kOne);
+ lstep2[46] = _mm_madd_epi16(lstep2[46], kOne);
+ lstep2[47] = _mm_madd_epi16(lstep2[47], kOne);
+ lstep2[48] = _mm_madd_epi16(lstep2[48], kOne);
+ lstep2[49] = _mm_madd_epi16(lstep2[49], kOne);
+ lstep2[50] = _mm_madd_epi16(lstep2[50], kOne);
+ lstep2[51] = _mm_madd_epi16(lstep2[51], kOne);
+ lstep2[52] = _mm_madd_epi16(lstep2[52], kOne);
+ lstep2[53] = _mm_madd_epi16(lstep2[53], kOne);
+ lstep2[54] = _mm_madd_epi16(lstep2[54], kOne);
+ lstep2[55] = _mm_madd_epi16(lstep2[55], kOne);
+
+ lstep1[32] = _mm_unpacklo_epi16(step1[16], kZero);
+ lstep1[33] = _mm_unpackhi_epi16(step1[16], kZero);
+ lstep1[34] = _mm_unpacklo_epi16(step1[17], kZero);
+ lstep1[35] = _mm_unpackhi_epi16(step1[17], kZero);
+ lstep1[36] = _mm_unpacklo_epi16(step1[18], kZero);
+ lstep1[37] = _mm_unpackhi_epi16(step1[18], kZero);
+ lstep1[38] = _mm_unpacklo_epi16(step1[19], kZero);
+ lstep1[39] = _mm_unpackhi_epi16(step1[19], kZero);
+ lstep1[56] = _mm_unpacklo_epi16(step1[28], kZero);
+ lstep1[57] = _mm_unpackhi_epi16(step1[28], kZero);
+ lstep1[58] = _mm_unpacklo_epi16(step1[29], kZero);
+ lstep1[59] = _mm_unpackhi_epi16(step1[29], kZero);
+ lstep1[60] = _mm_unpacklo_epi16(step1[30], kZero);
+ lstep1[61] = _mm_unpackhi_epi16(step1[30], kZero);
+ lstep1[62] = _mm_unpacklo_epi16(step1[31], kZero);
+ lstep1[63] = _mm_unpackhi_epi16(step1[31], kZero);
+ lstep1[32] = _mm_madd_epi16(lstep1[32], kOne);
+ lstep1[33] = _mm_madd_epi16(lstep1[33], kOne);
+ lstep1[34] = _mm_madd_epi16(lstep1[34], kOne);
+ lstep1[35] = _mm_madd_epi16(lstep1[35], kOne);
+ lstep1[36] = _mm_madd_epi16(lstep1[36], kOne);
+ lstep1[37] = _mm_madd_epi16(lstep1[37], kOne);
+ lstep1[38] = _mm_madd_epi16(lstep1[38], kOne);
+ lstep1[39] = _mm_madd_epi16(lstep1[39], kOne);
+ lstep1[56] = _mm_madd_epi16(lstep1[56], kOne);
+ lstep1[57] = _mm_madd_epi16(lstep1[57], kOne);
+ lstep1[58] = _mm_madd_epi16(lstep1[58], kOne);
+ lstep1[59] = _mm_madd_epi16(lstep1[59], kOne);
+ lstep1[60] = _mm_madd_epi16(lstep1[60], kOne);
+ lstep1[61] = _mm_madd_epi16(lstep1[61], kOne);
+ lstep1[62] = _mm_madd_epi16(lstep1[62], kOne);
+ lstep1[63] = _mm_madd_epi16(lstep1[63], kOne);
+
+ lstep3[32] = _mm_add_epi32(lstep2[46], lstep1[32]);
+ lstep3[33] = _mm_add_epi32(lstep2[47], lstep1[33]);
+
+ lstep3[34] = _mm_add_epi32(lstep2[44], lstep1[34]);
+ lstep3[35] = _mm_add_epi32(lstep2[45], lstep1[35]);
+ lstep3[36] = _mm_add_epi32(lstep2[42], lstep1[36]);
+ lstep3[37] = _mm_add_epi32(lstep2[43], lstep1[37]);
+ lstep3[38] = _mm_add_epi32(lstep2[40], lstep1[38]);
+ lstep3[39] = _mm_add_epi32(lstep2[41], lstep1[39]);
+ lstep3[40] = _mm_sub_epi32(lstep1[38], lstep2[40]);
+ lstep3[41] = _mm_sub_epi32(lstep1[39], lstep2[41]);
+ lstep3[42] = _mm_sub_epi32(lstep1[36], lstep2[42]);
+ lstep3[43] = _mm_sub_epi32(lstep1[37], lstep2[43]);
+ lstep3[44] = _mm_sub_epi32(lstep1[34], lstep2[44]);
+ lstep3[45] = _mm_sub_epi32(lstep1[35], lstep2[45]);
+ lstep3[46] = _mm_sub_epi32(lstep1[32], lstep2[46]);
+ lstep3[47] = _mm_sub_epi32(lstep1[33], lstep2[47]);
+ lstep3[48] = _mm_sub_epi32(lstep1[62], lstep2[48]);
+ lstep3[49] = _mm_sub_epi32(lstep1[63], lstep2[49]);
+ lstep3[50] = _mm_sub_epi32(lstep1[60], lstep2[50]);
+ lstep3[51] = _mm_sub_epi32(lstep1[61], lstep2[51]);
+ lstep3[52] = _mm_sub_epi32(lstep1[58], lstep2[52]);
+ lstep3[53] = _mm_sub_epi32(lstep1[59], lstep2[53]);
+ lstep3[54] = _mm_sub_epi32(lstep1[56], lstep2[54]);
+ lstep3[55] = _mm_sub_epi32(lstep1[57], lstep2[55]);
+ lstep3[56] = _mm_add_epi32(lstep2[54], lstep1[56]);
+ lstep3[57] = _mm_add_epi32(lstep2[55], lstep1[57]);
+ lstep3[58] = _mm_add_epi32(lstep2[52], lstep1[58]);
+ lstep3[59] = _mm_add_epi32(lstep2[53], lstep1[59]);
+ lstep3[60] = _mm_add_epi32(lstep2[50], lstep1[60]);
+ lstep3[61] = _mm_add_epi32(lstep2[51], lstep1[61]);
+ lstep3[62] = _mm_add_epi32(lstep2[48], lstep1[62]);
+ lstep3[63] = _mm_add_epi32(lstep2[49], lstep1[63]);
+ }
+
+ // stage 4
+ {+ // expanding to 32-bit length priori to addition operations
+ lstep2[16] = _mm_unpacklo_epi16(step2[ 8], kZero);
+ lstep2[17] = _mm_unpackhi_epi16(step2[ 8], kZero);
+ lstep2[18] = _mm_unpacklo_epi16(step2[ 9], kZero);
+ lstep2[19] = _mm_unpackhi_epi16(step2[ 9], kZero);
+ lstep2[28] = _mm_unpacklo_epi16(step2[14], kZero);
+ lstep2[29] = _mm_unpackhi_epi16(step2[14], kZero);
+ lstep2[30] = _mm_unpacklo_epi16(step2[15], kZero);
+ lstep2[31] = _mm_unpackhi_epi16(step2[15], kZero);
+ lstep2[16] = _mm_madd_epi16(lstep2[16], kOne);
+ lstep2[17] = _mm_madd_epi16(lstep2[17], kOne);
+ lstep2[18] = _mm_madd_epi16(lstep2[18], kOne);
+ lstep2[19] = _mm_madd_epi16(lstep2[19], kOne);
+ lstep2[28] = _mm_madd_epi16(lstep2[28], kOne);
+ lstep2[29] = _mm_madd_epi16(lstep2[29], kOne);
+ lstep2[30] = _mm_madd_epi16(lstep2[30], kOne);
+ lstep2[31] = _mm_madd_epi16(lstep2[31], kOne);
+
+ lstep1[ 0] = _mm_add_epi32(lstep3[ 6], lstep3[ 0]);
+ lstep1[ 1] = _mm_add_epi32(lstep3[ 7], lstep3[ 1]);
+ lstep1[ 2] = _mm_add_epi32(lstep3[ 4], lstep3[ 2]);
+ lstep1[ 3] = _mm_add_epi32(lstep3[ 5], lstep3[ 3]);
+ lstep1[ 4] = _mm_sub_epi32(lstep3[ 2], lstep3[ 4]);
+ lstep1[ 5] = _mm_sub_epi32(lstep3[ 3], lstep3[ 5]);
+ lstep1[ 6] = _mm_sub_epi32(lstep3[ 0], lstep3[ 6]);
+ lstep1[ 7] = _mm_sub_epi32(lstep3[ 1], lstep3[ 7]);
+ lstep1[16] = _mm_add_epi32(lstep3[22], lstep2[16]);
+ lstep1[17] = _mm_add_epi32(lstep3[23], lstep2[17]);
+ lstep1[18] = _mm_add_epi32(lstep3[20], lstep2[18]);
+ lstep1[19] = _mm_add_epi32(lstep3[21], lstep2[19]);
+ lstep1[20] = _mm_sub_epi32(lstep2[18], lstep3[20]);
+ lstep1[21] = _mm_sub_epi32(lstep2[19], lstep3[21]);
+ lstep1[22] = _mm_sub_epi32(lstep2[16], lstep3[22]);
+ lstep1[23] = _mm_sub_epi32(lstep2[17], lstep3[23]);
+ lstep1[24] = _mm_sub_epi32(lstep2[30], lstep3[24]);
+ lstep1[25] = _mm_sub_epi32(lstep2[31], lstep3[25]);
+ lstep1[26] = _mm_sub_epi32(lstep2[28], lstep3[26]);
+ lstep1[27] = _mm_sub_epi32(lstep2[29], lstep3[27]);
+ lstep1[28] = _mm_add_epi32(lstep3[26], lstep2[28]);
+ lstep1[29] = _mm_add_epi32(lstep3[27], lstep2[29]);
+ lstep1[30] = _mm_add_epi32(lstep3[24], lstep2[30]);
+ lstep1[31] = _mm_add_epi32(lstep3[25], lstep2[31]);
+ }
+ {+ // to be continued...
+ //
+ const __m128i k32_p16_p16 = pair_set_epi32(cospi_16_64, cospi_16_64);
+ const __m128i k32_p16_m16 = pair_set_epi32(cospi_16_64, -cospi_16_64);
+
+ u[0] = _mm_unpacklo_epi32(lstep3[12], lstep3[10]);
+ u[1] = _mm_unpackhi_epi32(lstep3[12], lstep3[10]);
+ u[2] = _mm_unpacklo_epi32(lstep3[13], lstep3[11]);
+ u[3] = _mm_unpackhi_epi32(lstep3[13], lstep3[11]);
+
+ // TODO(jingning): manually inline k_madd_epi32_ to further hide
+ // instruction latency.
+ v[0] = k_madd_epi32(u[0], k32_p16_m16);
+ v[1] = k_madd_epi32(u[1], k32_p16_m16);
+ v[2] = k_madd_epi32(u[2], k32_p16_m16);
+ v[3] = k_madd_epi32(u[3], k32_p16_m16);
+ v[4] = k_madd_epi32(u[0], k32_p16_p16);
+ v[5] = k_madd_epi32(u[1], k32_p16_p16);
+ v[6] = k_madd_epi32(u[2], k32_p16_p16);
+ v[7] = k_madd_epi32(u[3], k32_p16_p16);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_8(&v[0], &v[1], &v[2], &v[3],
+ &v[4], &v[5], &v[6], &v[7], &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[0] = k_packs_epi64(v[0], v[1]);
+ u[1] = k_packs_epi64(v[2], v[3]);
+ u[2] = k_packs_epi64(v[4], v[5]);
+ u[3] = k_packs_epi64(v[6], v[7]);
+
+ 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);
+
+ lstep1[10] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
+ lstep1[11] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
+ lstep1[12] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
+ lstep1[13] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
+ }
+ {+ const __m128i k32_m08_p24 = pair_set_epi32(-cospi_8_64, cospi_24_64);
+ const __m128i k32_m24_m08 = pair_set_epi32(-cospi_24_64, -cospi_8_64);
+ const __m128i k32_p24_p08 = pair_set_epi32(cospi_24_64, cospi_8_64);
+
+ u[ 0] = _mm_unpacklo_epi32(lstep3[36], lstep3[58]);
+ u[ 1] = _mm_unpackhi_epi32(lstep3[36], lstep3[58]);
+ u[ 2] = _mm_unpacklo_epi32(lstep3[37], lstep3[59]);
+ u[ 3] = _mm_unpackhi_epi32(lstep3[37], lstep3[59]);
+ u[ 4] = _mm_unpacklo_epi32(lstep3[38], lstep3[56]);
+ u[ 5] = _mm_unpackhi_epi32(lstep3[38], lstep3[56]);
+ u[ 6] = _mm_unpacklo_epi32(lstep3[39], lstep3[57]);
+ u[ 7] = _mm_unpackhi_epi32(lstep3[39], lstep3[57]);
+ u[ 8] = _mm_unpacklo_epi32(lstep3[40], lstep3[54]);
+ u[ 9] = _mm_unpackhi_epi32(lstep3[40], lstep3[54]);
+ u[10] = _mm_unpacklo_epi32(lstep3[41], lstep3[55]);
+ u[11] = _mm_unpackhi_epi32(lstep3[41], lstep3[55]);
+ u[12] = _mm_unpacklo_epi32(lstep3[42], lstep3[52]);
+ u[13] = _mm_unpackhi_epi32(lstep3[42], lstep3[52]);
+ u[14] = _mm_unpacklo_epi32(lstep3[43], lstep3[53]);
+ u[15] = _mm_unpackhi_epi32(lstep3[43], lstep3[53]);
+
+ v[ 0] = k_madd_epi32(u[ 0], k32_m08_p24);
+ v[ 1] = k_madd_epi32(u[ 1], k32_m08_p24);
+ v[ 2] = k_madd_epi32(u[ 2], k32_m08_p24);
+ v[ 3] = k_madd_epi32(u[ 3], k32_m08_p24);
+ v[ 4] = k_madd_epi32(u[ 4], k32_m08_p24);
+ v[ 5] = k_madd_epi32(u[ 5], k32_m08_p24);
+ v[ 6] = k_madd_epi32(u[ 6], k32_m08_p24);
+ v[ 7] = k_madd_epi32(u[ 7], k32_m08_p24);
+ v[ 8] = k_madd_epi32(u[ 8], k32_m24_m08);
+ v[ 9] = k_madd_epi32(u[ 9], k32_m24_m08);
+ v[10] = k_madd_epi32(u[10], k32_m24_m08);
+ v[11] = k_madd_epi32(u[11], k32_m24_m08);
+ v[12] = k_madd_epi32(u[12], k32_m24_m08);
+ v[13] = k_madd_epi32(u[13], k32_m24_m08);
+ v[14] = k_madd_epi32(u[14], k32_m24_m08);
+ v[15] = k_madd_epi32(u[15], k32_m24_m08);
+ v[16] = k_madd_epi32(u[12], k32_m08_p24);
+ v[17] = k_madd_epi32(u[13], k32_m08_p24);
+ v[18] = k_madd_epi32(u[14], k32_m08_p24);
+ v[19] = k_madd_epi32(u[15], k32_m08_p24);
+ v[20] = k_madd_epi32(u[ 8], k32_m08_p24);
+ v[21] = k_madd_epi32(u[ 9], k32_m08_p24);
+ v[22] = k_madd_epi32(u[10], k32_m08_p24);
+ v[23] = k_madd_epi32(u[11], k32_m08_p24);
+ v[24] = k_madd_epi32(u[ 4], k32_p24_p08);
+ v[25] = k_madd_epi32(u[ 5], k32_p24_p08);
+ v[26] = k_madd_epi32(u[ 6], k32_p24_p08);
+ v[27] = k_madd_epi32(u[ 7], k32_p24_p08);
+ v[28] = k_madd_epi32(u[ 0], k32_p24_p08);
+ v[29] = k_madd_epi32(u[ 1], k32_p24_p08);
+ v[30] = k_madd_epi32(u[ 2], k32_p24_p08);
+ v[31] = k_madd_epi32(u[ 3], k32_p24_p08);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_32(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &v[16], &v[17], &v[18], &v[19], &v[20], &v[21], &v[22], &v[23],
+ &v[24], &v[25], &v[26], &v[27], &v[28], &v[29], &v[30], &v[31],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[ 0] = k_packs_epi64(v[ 0], v[ 1]);
+ u[ 1] = k_packs_epi64(v[ 2], v[ 3]);
+ u[ 2] = k_packs_epi64(v[ 4], v[ 5]);
+ u[ 3] = k_packs_epi64(v[ 6], v[ 7]);
+ u[ 4] = k_packs_epi64(v[ 8], v[ 9]);
+ u[ 5] = k_packs_epi64(v[10], v[11]);
+ u[ 6] = k_packs_epi64(v[12], v[13]);
+ u[ 7] = k_packs_epi64(v[14], v[15]);
+ u[ 8] = k_packs_epi64(v[16], v[17]);
+ u[ 9] = k_packs_epi64(v[18], v[19]);
+ u[10] = k_packs_epi64(v[20], v[21]);
+ u[11] = k_packs_epi64(v[22], v[23]);
+ u[12] = k_packs_epi64(v[24], v[25]);
+ u[13] = k_packs_epi64(v[26], v[27]);
+ u[14] = k_packs_epi64(v[28], v[29]);
+ u[15] = k_packs_epi64(v[30], 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);
+
+ lstep1[36] = _mm_srai_epi32(v[ 0], DCT_CONST_BITS);
+ lstep1[37] = _mm_srai_epi32(v[ 1], DCT_CONST_BITS);
+ lstep1[38] = _mm_srai_epi32(v[ 2], DCT_CONST_BITS);
+ lstep1[39] = _mm_srai_epi32(v[ 3], DCT_CONST_BITS);
+ lstep1[40] = _mm_srai_epi32(v[ 4], DCT_CONST_BITS);
+ lstep1[41] = _mm_srai_epi32(v[ 5], DCT_CONST_BITS);
+ lstep1[42] = _mm_srai_epi32(v[ 6], DCT_CONST_BITS);
+ lstep1[43] = _mm_srai_epi32(v[ 7], DCT_CONST_BITS);
+ lstep1[52] = _mm_srai_epi32(v[ 8], DCT_CONST_BITS);
+ lstep1[53] = _mm_srai_epi32(v[ 9], DCT_CONST_BITS);
+ lstep1[54] = _mm_srai_epi32(v[10], DCT_CONST_BITS);
+ lstep1[55] = _mm_srai_epi32(v[11], DCT_CONST_BITS);
+ lstep1[56] = _mm_srai_epi32(v[12], DCT_CONST_BITS);
+ lstep1[57] = _mm_srai_epi32(v[13], DCT_CONST_BITS);
+ lstep1[58] = _mm_srai_epi32(v[14], DCT_CONST_BITS);
+ lstep1[59] = _mm_srai_epi32(v[15], DCT_CONST_BITS);
+ }
+ // stage 5
+ {+ lstep2[ 8] = _mm_add_epi32(lstep1[10], lstep3[ 8]);
+ lstep2[ 9] = _mm_add_epi32(lstep1[11], lstep3[ 9]);
+ lstep2[10] = _mm_sub_epi32(lstep3[ 8], lstep1[10]);
+ lstep2[11] = _mm_sub_epi32(lstep3[ 9], lstep1[11]);
+ lstep2[12] = _mm_sub_epi32(lstep3[14], lstep1[12]);
+ lstep2[13] = _mm_sub_epi32(lstep3[15], lstep1[13]);
+ lstep2[14] = _mm_add_epi32(lstep1[12], lstep3[14]);
+ lstep2[15] = _mm_add_epi32(lstep1[13], lstep3[15]);
+ }
+ {+ const __m128i k32_p16_p16 = pair_set_epi32(cospi_16_64, cospi_16_64);
+ const __m128i k32_p16_m16 = pair_set_epi32(cospi_16_64, -cospi_16_64);
+ const __m128i k32_p24_p08 = pair_set_epi32(cospi_24_64, cospi_8_64);
+ const __m128i k32_m08_p24 = pair_set_epi32(-cospi_8_64, cospi_24_64);
+
+ u[0] = _mm_unpacklo_epi32(lstep1[0], lstep1[2]);
+ u[1] = _mm_unpackhi_epi32(lstep1[0], lstep1[2]);
+ u[2] = _mm_unpacklo_epi32(lstep1[1], lstep1[3]);
+ u[3] = _mm_unpackhi_epi32(lstep1[1], lstep1[3]);
+ u[4] = _mm_unpacklo_epi32(lstep1[4], lstep1[6]);
+ u[5] = _mm_unpackhi_epi32(lstep1[4], lstep1[6]);
+ u[6] = _mm_unpacklo_epi32(lstep1[5], lstep1[7]);
+ u[7] = _mm_unpackhi_epi32(lstep1[5], lstep1[7]);
+
+ // TODO(jingning): manually inline k_madd_epi32_ to further hide
+ // instruction latency.
+ v[ 0] = k_madd_epi32(u[0], k32_p16_p16);
+ v[ 1] = k_madd_epi32(u[1], k32_p16_p16);
+ v[ 2] = k_madd_epi32(u[2], k32_p16_p16);
+ v[ 3] = k_madd_epi32(u[3], k32_p16_p16);
+ v[ 4] = k_madd_epi32(u[0], k32_p16_m16);
+ v[ 5] = k_madd_epi32(u[1], k32_p16_m16);
+ v[ 6] = k_madd_epi32(u[2], k32_p16_m16);
+ v[ 7] = k_madd_epi32(u[3], k32_p16_m16);
+ v[ 8] = k_madd_epi32(u[4], k32_p24_p08);
+ v[ 9] = k_madd_epi32(u[5], k32_p24_p08);
+ v[10] = k_madd_epi32(u[6], k32_p24_p08);
+ v[11] = k_madd_epi32(u[7], k32_p24_p08);
+ v[12] = k_madd_epi32(u[4], k32_m08_p24);
+ v[13] = k_madd_epi32(u[5], k32_m08_p24);
+ v[14] = k_madd_epi32(u[6], k32_m08_p24);
+ v[15] = k_madd_epi32(u[7], k32_m08_p24);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_16(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[0] = k_packs_epi64(v[0], v[1]);
+ u[1] = k_packs_epi64(v[2], v[3]);
+ u[2] = k_packs_epi64(v[4], v[5]);
+ u[3] = k_packs_epi64(v[6], v[7]);
+ u[4] = k_packs_epi64(v[8], v[9]);
+ u[5] = k_packs_epi64(v[10], v[11]);
+ u[6] = k_packs_epi64(v[12], v[13]);
+ u[7] = k_packs_epi64(v[14], 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);
+
+ 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);
+
+ sign[0] = _mm_cmplt_epi32(u[0], kZero);
+ sign[1] = _mm_cmplt_epi32(u[1], kZero);
+ sign[2] = _mm_cmplt_epi32(u[2], kZero);
+ sign[3] = _mm_cmplt_epi32(u[3], kZero);
+ sign[4] = _mm_cmplt_epi32(u[4], kZero);
+ sign[5] = _mm_cmplt_epi32(u[5], kZero);
+ sign[6] = _mm_cmplt_epi32(u[6], kZero);
+ sign[7] = _mm_cmplt_epi32(u[7], kZero);
+
+ u[0] = _mm_sub_epi32(u[0], sign[0]);
+ u[1] = _mm_sub_epi32(u[1], sign[1]);
+ u[2] = _mm_sub_epi32(u[2], sign[2]);
+ u[3] = _mm_sub_epi32(u[3], sign[3]);
+ u[4] = _mm_sub_epi32(u[4], sign[4]);
+ u[5] = _mm_sub_epi32(u[5], sign[5]);
+ u[6] = _mm_sub_epi32(u[6], sign[6]);
+ u[7] = _mm_sub_epi32(u[7], sign[7]);
+
+ u[0] = _mm_add_epi32(u[0], K32One);
+ u[1] = _mm_add_epi32(u[1], K32One);
+ u[2] = _mm_add_epi32(u[2], K32One);
+ u[3] = _mm_add_epi32(u[3], K32One);
+ u[4] = _mm_add_epi32(u[4], K32One);
+ u[5] = _mm_add_epi32(u[5], K32One);
+ u[6] = _mm_add_epi32(u[6], K32One);
+ u[7] = _mm_add_epi32(u[7], K32One);
+
+ u[0] = _mm_srai_epi32(u[0], 2);
+ u[1] = _mm_srai_epi32(u[1], 2);
+ u[2] = _mm_srai_epi32(u[2], 2);
+ u[3] = _mm_srai_epi32(u[3], 2);
+ u[4] = _mm_srai_epi32(u[4], 2);
+ u[5] = _mm_srai_epi32(u[5], 2);
+ u[6] = _mm_srai_epi32(u[6], 2);
+ u[7] = _mm_srai_epi32(u[7], 2);
+
+ // Combine
+ out[ 0] = _mm_packs_epi32(u[0], u[1]);
+ out[16] = _mm_packs_epi32(u[2], u[3]);
+ out[ 8] = _mm_packs_epi32(u[4], u[5]);
+ out[24] = _mm_packs_epi32(u[6], u[7]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&out[0], &out[16],
+ &out[8], &out[24]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i k32_m08_p24 = pair_set_epi32(-cospi_8_64, cospi_24_64);
+ const __m128i k32_m24_m08 = pair_set_epi32(-cospi_24_64, -cospi_8_64);
+ const __m128i k32_p24_p08 = pair_set_epi32(cospi_24_64, cospi_8_64);
+
+ u[0] = _mm_unpacklo_epi32(lstep1[18], lstep1[28]);
+ u[1] = _mm_unpackhi_epi32(lstep1[18], lstep1[28]);
+ u[2] = _mm_unpacklo_epi32(lstep1[19], lstep1[29]);
+ u[3] = _mm_unpackhi_epi32(lstep1[19], lstep1[29]);
+ u[4] = _mm_unpacklo_epi32(lstep1[20], lstep1[26]);
+ u[5] = _mm_unpackhi_epi32(lstep1[20], lstep1[26]);
+ u[6] = _mm_unpacklo_epi32(lstep1[21], lstep1[27]);
+ u[7] = _mm_unpackhi_epi32(lstep1[21], lstep1[27]);
+
+ v[0] = k_madd_epi32(u[0], k32_m08_p24);
+ v[1] = k_madd_epi32(u[1], k32_m08_p24);
+ v[2] = k_madd_epi32(u[2], k32_m08_p24);
+ v[3] = k_madd_epi32(u[3], k32_m08_p24);
+ v[4] = k_madd_epi32(u[4], k32_m24_m08);
+ v[5] = k_madd_epi32(u[5], k32_m24_m08);
+ v[6] = k_madd_epi32(u[6], k32_m24_m08);
+ v[7] = k_madd_epi32(u[7], k32_m24_m08);
+ v[ 8] = k_madd_epi32(u[4], k32_m08_p24);
+ v[ 9] = k_madd_epi32(u[5], k32_m08_p24);
+ v[10] = k_madd_epi32(u[6], k32_m08_p24);
+ v[11] = k_madd_epi32(u[7], k32_m08_p24);
+ v[12] = k_madd_epi32(u[0], k32_p24_p08);
+ v[13] = k_madd_epi32(u[1], k32_p24_p08);
+ v[14] = k_madd_epi32(u[2], k32_p24_p08);
+ v[15] = k_madd_epi32(u[3], k32_p24_p08);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_16(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[0] = k_packs_epi64(v[0], v[1]);
+ u[1] = k_packs_epi64(v[2], v[3]);
+ u[2] = k_packs_epi64(v[4], v[5]);
+ u[3] = k_packs_epi64(v[6], v[7]);
+ u[4] = k_packs_epi64(v[8], v[9]);
+ u[5] = k_packs_epi64(v[10], v[11]);
+ u[6] = k_packs_epi64(v[12], v[13]);
+ u[7] = k_packs_epi64(v[14], 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);
+
+ lstep2[18] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
+ lstep2[19] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
+ lstep2[20] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
+ lstep2[21] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
+ lstep2[26] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
+ lstep2[27] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
+ lstep2[28] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
+ lstep2[29] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
+ }
+ {+ lstep2[32] = _mm_add_epi32(lstep1[38], lstep3[32]);
+ lstep2[33] = _mm_add_epi32(lstep1[39], lstep3[33]);
+ lstep2[34] = _mm_add_epi32(lstep1[36], lstep3[34]);
+ lstep2[35] = _mm_add_epi32(lstep1[37], lstep3[35]);
+ lstep2[36] = _mm_sub_epi32(lstep3[34], lstep1[36]);
+ lstep2[37] = _mm_sub_epi32(lstep3[35], lstep1[37]);
+ lstep2[38] = _mm_sub_epi32(lstep3[32], lstep1[38]);
+ lstep2[39] = _mm_sub_epi32(lstep3[33], lstep1[39]);
+ lstep2[40] = _mm_sub_epi32(lstep3[46], lstep1[40]);
+ lstep2[41] = _mm_sub_epi32(lstep3[47], lstep1[41]);
+ lstep2[42] = _mm_sub_epi32(lstep3[44], lstep1[42]);
+ lstep2[43] = _mm_sub_epi32(lstep3[45], lstep1[43]);
+ lstep2[44] = _mm_add_epi32(lstep1[42], lstep3[44]);
+ lstep2[45] = _mm_add_epi32(lstep1[43], lstep3[45]);
+ lstep2[46] = _mm_add_epi32(lstep1[40], lstep3[46]);
+ lstep2[47] = _mm_add_epi32(lstep1[41], lstep3[47]);
+ lstep2[48] = _mm_add_epi32(lstep1[54], lstep3[48]);
+ lstep2[49] = _mm_add_epi32(lstep1[55], lstep3[49]);
+ lstep2[50] = _mm_add_epi32(lstep1[52], lstep3[50]);
+ lstep2[51] = _mm_add_epi32(lstep1[53], lstep3[51]);
+ lstep2[52] = _mm_sub_epi32(lstep3[50], lstep1[52]);
+ lstep2[53] = _mm_sub_epi32(lstep3[51], lstep1[53]);
+ lstep2[54] = _mm_sub_epi32(lstep3[48], lstep1[54]);
+ lstep2[55] = _mm_sub_epi32(lstep3[49], lstep1[55]);
+ lstep2[56] = _mm_sub_epi32(lstep3[62], lstep1[56]);
+ lstep2[57] = _mm_sub_epi32(lstep3[63], lstep1[57]);
+ lstep2[58] = _mm_sub_epi32(lstep3[60], lstep1[58]);
+ lstep2[59] = _mm_sub_epi32(lstep3[61], lstep1[59]);
+ lstep2[60] = _mm_add_epi32(lstep1[58], lstep3[60]);
+ lstep2[61] = _mm_add_epi32(lstep1[59], lstep3[61]);
+ lstep2[62] = _mm_add_epi32(lstep1[56], lstep3[62]);
+ lstep2[63] = _mm_add_epi32(lstep1[57], lstep3[63]);
+ }
+ // stage 6
+ {+ const __m128i k32_p28_p04 = pair_set_epi32(cospi_28_64, cospi_4_64);
+ const __m128i k32_p12_p20 = pair_set_epi32(cospi_12_64, cospi_20_64);
+ const __m128i k32_m20_p12 = pair_set_epi32(-cospi_20_64, cospi_12_64);
+ const __m128i k32_m04_p28 = pair_set_epi32(-cospi_4_64, cospi_28_64);
+
+ u[0] = _mm_unpacklo_epi32(lstep2[ 8], lstep2[14]);
+ u[1] = _mm_unpackhi_epi32(lstep2[ 8], lstep2[14]);
+ u[2] = _mm_unpacklo_epi32(lstep2[ 9], lstep2[15]);
+ u[3] = _mm_unpackhi_epi32(lstep2[ 9], lstep2[15]);
+ u[4] = _mm_unpacklo_epi32(lstep2[10], lstep2[12]);
+ u[5] = _mm_unpackhi_epi32(lstep2[10], lstep2[12]);
+ u[6] = _mm_unpacklo_epi32(lstep2[11], lstep2[13]);
+ u[7] = _mm_unpackhi_epi32(lstep2[11], lstep2[13]);
+ u[8] = _mm_unpacklo_epi32(lstep2[10], lstep2[12]);
+ u[9] = _mm_unpackhi_epi32(lstep2[10], lstep2[12]);
+ u[10] = _mm_unpacklo_epi32(lstep2[11], lstep2[13]);
+ u[11] = _mm_unpackhi_epi32(lstep2[11], lstep2[13]);
+ u[12] = _mm_unpacklo_epi32(lstep2[ 8], lstep2[14]);
+ u[13] = _mm_unpackhi_epi32(lstep2[ 8], lstep2[14]);
+ u[14] = _mm_unpacklo_epi32(lstep2[ 9], lstep2[15]);
+ u[15] = _mm_unpackhi_epi32(lstep2[ 9], lstep2[15]);
+
+ v[0] = k_madd_epi32(u[0], k32_p28_p04);
+ v[1] = k_madd_epi32(u[1], k32_p28_p04);
+ v[2] = k_madd_epi32(u[2], k32_p28_p04);
+ v[3] = k_madd_epi32(u[3], k32_p28_p04);
+ v[4] = k_madd_epi32(u[4], k32_p12_p20);
+ v[5] = k_madd_epi32(u[5], k32_p12_p20);
+ v[6] = k_madd_epi32(u[6], k32_p12_p20);
+ v[7] = k_madd_epi32(u[7], k32_p12_p20);
+ v[ 8] = k_madd_epi32(u[ 8], k32_m20_p12);
+ v[ 9] = k_madd_epi32(u[ 9], k32_m20_p12);
+ v[10] = k_madd_epi32(u[10], k32_m20_p12);
+ v[11] = k_madd_epi32(u[11], k32_m20_p12);
+ v[12] = k_madd_epi32(u[12], k32_m04_p28);
+ v[13] = k_madd_epi32(u[13], k32_m04_p28);
+ v[14] = k_madd_epi32(u[14], k32_m04_p28);
+ v[15] = k_madd_epi32(u[15], k32_m04_p28);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_16(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[0] = k_packs_epi64(v[0], v[1]);
+ u[1] = k_packs_epi64(v[2], v[3]);
+ u[2] = k_packs_epi64(v[4], v[5]);
+ u[3] = k_packs_epi64(v[6], v[7]);
+ u[4] = k_packs_epi64(v[8], v[9]);
+ u[5] = k_packs_epi64(v[10], v[11]);
+ u[6] = k_packs_epi64(v[12], v[13]);
+ u[7] = k_packs_epi64(v[14], 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);
+
+ 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);
+
+ sign[0] = _mm_cmplt_epi32(u[0], kZero);
+ sign[1] = _mm_cmplt_epi32(u[1], kZero);
+ sign[2] = _mm_cmplt_epi32(u[2], kZero);
+ sign[3] = _mm_cmplt_epi32(u[3], kZero);
+ sign[4] = _mm_cmplt_epi32(u[4], kZero);
+ sign[5] = _mm_cmplt_epi32(u[5], kZero);
+ sign[6] = _mm_cmplt_epi32(u[6], kZero);
+ sign[7] = _mm_cmplt_epi32(u[7], kZero);
+
+ u[0] = _mm_sub_epi32(u[0], sign[0]);
+ u[1] = _mm_sub_epi32(u[1], sign[1]);
+ u[2] = _mm_sub_epi32(u[2], sign[2]);
+ u[3] = _mm_sub_epi32(u[3], sign[3]);
+ u[4] = _mm_sub_epi32(u[4], sign[4]);
+ u[5] = _mm_sub_epi32(u[5], sign[5]);
+ u[6] = _mm_sub_epi32(u[6], sign[6]);
+ u[7] = _mm_sub_epi32(u[7], sign[7]);
+
+ u[0] = _mm_add_epi32(u[0], K32One);
+ u[1] = _mm_add_epi32(u[1], K32One);
+ u[2] = _mm_add_epi32(u[2], K32One);
+ u[3] = _mm_add_epi32(u[3], K32One);
+ u[4] = _mm_add_epi32(u[4], K32One);
+ u[5] = _mm_add_epi32(u[5], K32One);
+ u[6] = _mm_add_epi32(u[6], K32One);
+ u[7] = _mm_add_epi32(u[7], K32One);
+
+ u[0] = _mm_srai_epi32(u[0], 2);
+ u[1] = _mm_srai_epi32(u[1], 2);
+ u[2] = _mm_srai_epi32(u[2], 2);
+ u[3] = _mm_srai_epi32(u[3], 2);
+ u[4] = _mm_srai_epi32(u[4], 2);
+ u[5] = _mm_srai_epi32(u[5], 2);
+ u[6] = _mm_srai_epi32(u[6], 2);
+ u[7] = _mm_srai_epi32(u[7], 2);
+
+ out[ 4] = _mm_packs_epi32(u[0], u[1]);
+ out[20] = _mm_packs_epi32(u[2], u[3]);
+ out[12] = _mm_packs_epi32(u[4], u[5]);
+ out[28] = _mm_packs_epi32(u[6], u[7]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&out[4], &out[20],
+ &out[12], &out[28]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ lstep3[16] = _mm_add_epi32(lstep2[18], lstep1[16]);
+ lstep3[17] = _mm_add_epi32(lstep2[19], lstep1[17]);
+ lstep3[18] = _mm_sub_epi32(lstep1[16], lstep2[18]);
+ lstep3[19] = _mm_sub_epi32(lstep1[17], lstep2[19]);
+ lstep3[20] = _mm_sub_epi32(lstep1[22], lstep2[20]);
+ lstep3[21] = _mm_sub_epi32(lstep1[23], lstep2[21]);
+ lstep3[22] = _mm_add_epi32(lstep2[20], lstep1[22]);
+ lstep3[23] = _mm_add_epi32(lstep2[21], lstep1[23]);
+ lstep3[24] = _mm_add_epi32(lstep2[26], lstep1[24]);
+ lstep3[25] = _mm_add_epi32(lstep2[27], lstep1[25]);
+ lstep3[26] = _mm_sub_epi32(lstep1[24], lstep2[26]);
+ lstep3[27] = _mm_sub_epi32(lstep1[25], lstep2[27]);
+ lstep3[28] = _mm_sub_epi32(lstep1[30], lstep2[28]);
+ lstep3[29] = _mm_sub_epi32(lstep1[31], lstep2[29]);
+ lstep3[30] = _mm_add_epi32(lstep2[28], lstep1[30]);
+ lstep3[31] = _mm_add_epi32(lstep2[29], lstep1[31]);
+ }
+ {+ const __m128i k32_m04_p28 = pair_set_epi32(-cospi_4_64, cospi_28_64);
+ const __m128i k32_m28_m04 = pair_set_epi32(-cospi_28_64, -cospi_4_64);
+ const __m128i k32_m20_p12 = pair_set_epi32(-cospi_20_64, cospi_12_64);
+ const __m128i k32_m12_m20 = pair_set_epi32(-cospi_12_64,
+ -cospi_20_64);
+ const __m128i k32_p12_p20 = pair_set_epi32(cospi_12_64, cospi_20_64);
+ const __m128i k32_p28_p04 = pair_set_epi32(cospi_28_64, cospi_4_64);
+
+ u[ 0] = _mm_unpacklo_epi32(lstep2[34], lstep2[60]);
+ u[ 1] = _mm_unpackhi_epi32(lstep2[34], lstep2[60]);
+ u[ 2] = _mm_unpacklo_epi32(lstep2[35], lstep2[61]);
+ u[ 3] = _mm_unpackhi_epi32(lstep2[35], lstep2[61]);
+ u[ 4] = _mm_unpacklo_epi32(lstep2[36], lstep2[58]);
+ u[ 5] = _mm_unpackhi_epi32(lstep2[36], lstep2[58]);
+ u[ 6] = _mm_unpacklo_epi32(lstep2[37], lstep2[59]);
+ u[ 7] = _mm_unpackhi_epi32(lstep2[37], lstep2[59]);
+ u[ 8] = _mm_unpacklo_epi32(lstep2[42], lstep2[52]);
+ u[ 9] = _mm_unpackhi_epi32(lstep2[42], lstep2[52]);
+ u[10] = _mm_unpacklo_epi32(lstep2[43], lstep2[53]);
+ u[11] = _mm_unpackhi_epi32(lstep2[43], lstep2[53]);
+ u[12] = _mm_unpacklo_epi32(lstep2[44], lstep2[50]);
+ u[13] = _mm_unpackhi_epi32(lstep2[44], lstep2[50]);
+ u[14] = _mm_unpacklo_epi32(lstep2[45], lstep2[51]);
+ u[15] = _mm_unpackhi_epi32(lstep2[45], lstep2[51]);
+
+ v[ 0] = k_madd_epi32(u[ 0], k32_m04_p28);
+ v[ 1] = k_madd_epi32(u[ 1], k32_m04_p28);
+ v[ 2] = k_madd_epi32(u[ 2], k32_m04_p28);
+ v[ 3] = k_madd_epi32(u[ 3], k32_m04_p28);
+ v[ 4] = k_madd_epi32(u[ 4], k32_m28_m04);
+ v[ 5] = k_madd_epi32(u[ 5], k32_m28_m04);
+ v[ 6] = k_madd_epi32(u[ 6], k32_m28_m04);
+ v[ 7] = k_madd_epi32(u[ 7], k32_m28_m04);
+ v[ 8] = k_madd_epi32(u[ 8], k32_m20_p12);
+ v[ 9] = k_madd_epi32(u[ 9], k32_m20_p12);
+ v[10] = k_madd_epi32(u[10], k32_m20_p12);
+ v[11] = k_madd_epi32(u[11], k32_m20_p12);
+ v[12] = k_madd_epi32(u[12], k32_m12_m20);
+ v[13] = k_madd_epi32(u[13], k32_m12_m20);
+ v[14] = k_madd_epi32(u[14], k32_m12_m20);
+ v[15] = k_madd_epi32(u[15], k32_m12_m20);
+ v[16] = k_madd_epi32(u[12], k32_m20_p12);
+ v[17] = k_madd_epi32(u[13], k32_m20_p12);
+ v[18] = k_madd_epi32(u[14], k32_m20_p12);
+ v[19] = k_madd_epi32(u[15], k32_m20_p12);
+ v[20] = k_madd_epi32(u[ 8], k32_p12_p20);
+ v[21] = k_madd_epi32(u[ 9], k32_p12_p20);
+ v[22] = k_madd_epi32(u[10], k32_p12_p20);
+ v[23] = k_madd_epi32(u[11], k32_p12_p20);
+ v[24] = k_madd_epi32(u[ 4], k32_m04_p28);
+ v[25] = k_madd_epi32(u[ 5], k32_m04_p28);
+ v[26] = k_madd_epi32(u[ 6], k32_m04_p28);
+ v[27] = k_madd_epi32(u[ 7], k32_m04_p28);
+ v[28] = k_madd_epi32(u[ 0], k32_p28_p04);
+ v[29] = k_madd_epi32(u[ 1], k32_p28_p04);
+ v[30] = k_madd_epi32(u[ 2], k32_p28_p04);
+ v[31] = k_madd_epi32(u[ 3], k32_p28_p04);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_32(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &v[16], &v[17], &v[18], &v[19], &v[20], &v[21], &v[22], &v[23],
+ &v[24], &v[25], &v[26], &v[27], &v[28], &v[29], &v[30], &v[31],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[ 0] = k_packs_epi64(v[ 0], v[ 1]);
+ u[ 1] = k_packs_epi64(v[ 2], v[ 3]);
+ u[ 2] = k_packs_epi64(v[ 4], v[ 5]);
+ u[ 3] = k_packs_epi64(v[ 6], v[ 7]);
+ u[ 4] = k_packs_epi64(v[ 8], v[ 9]);
+ u[ 5] = k_packs_epi64(v[10], v[11]);
+ u[ 6] = k_packs_epi64(v[12], v[13]);
+ u[ 7] = k_packs_epi64(v[14], v[15]);
+ u[ 8] = k_packs_epi64(v[16], v[17]);
+ u[ 9] = k_packs_epi64(v[18], v[19]);
+ u[10] = k_packs_epi64(v[20], v[21]);
+ u[11] = k_packs_epi64(v[22], v[23]);
+ u[12] = k_packs_epi64(v[24], v[25]);
+ u[13] = k_packs_epi64(v[26], v[27]);
+ u[14] = k_packs_epi64(v[28], v[29]);
+ u[15] = k_packs_epi64(v[30], 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);
+
+ lstep3[34] = _mm_srai_epi32(v[ 0], DCT_CONST_BITS);
+ lstep3[35] = _mm_srai_epi32(v[ 1], DCT_CONST_BITS);
+ lstep3[36] = _mm_srai_epi32(v[ 2], DCT_CONST_BITS);
+ lstep3[37] = _mm_srai_epi32(v[ 3], DCT_CONST_BITS);
+ lstep3[42] = _mm_srai_epi32(v[ 4], DCT_CONST_BITS);
+ lstep3[43] = _mm_srai_epi32(v[ 5], DCT_CONST_BITS);
+ lstep3[44] = _mm_srai_epi32(v[ 6], DCT_CONST_BITS);
+ lstep3[45] = _mm_srai_epi32(v[ 7], DCT_CONST_BITS);
+ lstep3[50] = _mm_srai_epi32(v[ 8], DCT_CONST_BITS);
+ lstep3[51] = _mm_srai_epi32(v[ 9], DCT_CONST_BITS);
+ lstep3[52] = _mm_srai_epi32(v[10], DCT_CONST_BITS);
+ lstep3[53] = _mm_srai_epi32(v[11], DCT_CONST_BITS);
+ lstep3[58] = _mm_srai_epi32(v[12], DCT_CONST_BITS);
+ lstep3[59] = _mm_srai_epi32(v[13], DCT_CONST_BITS);
+ lstep3[60] = _mm_srai_epi32(v[14], DCT_CONST_BITS);
+ lstep3[61] = _mm_srai_epi32(v[15], DCT_CONST_BITS);
+ }
+ // stage 7
+ {+ const __m128i k32_p30_p02 = pair_set_epi32(cospi_30_64, cospi_2_64);
+ const __m128i k32_p14_p18 = pair_set_epi32(cospi_14_64, cospi_18_64);
+ const __m128i k32_p22_p10 = pair_set_epi32(cospi_22_64, cospi_10_64);
+ const __m128i k32_p06_p26 = pair_set_epi32(cospi_6_64, cospi_26_64);
+ const __m128i k32_m26_p06 = pair_set_epi32(-cospi_26_64, cospi_6_64);
+ const __m128i k32_m10_p22 = pair_set_epi32(-cospi_10_64, cospi_22_64);
+ const __m128i k32_m18_p14 = pair_set_epi32(-cospi_18_64, cospi_14_64);
+ const __m128i k32_m02_p30 = pair_set_epi32(-cospi_2_64, cospi_30_64);
+
+ u[ 0] = _mm_unpacklo_epi32(lstep3[16], lstep3[30]);
+ u[ 1] = _mm_unpackhi_epi32(lstep3[16], lstep3[30]);
+ u[ 2] = _mm_unpacklo_epi32(lstep3[17], lstep3[31]);
+ u[ 3] = _mm_unpackhi_epi32(lstep3[17], lstep3[31]);
+ u[ 4] = _mm_unpacklo_epi32(lstep3[18], lstep3[28]);
+ u[ 5] = _mm_unpackhi_epi32(lstep3[18], lstep3[28]);
+ u[ 6] = _mm_unpacklo_epi32(lstep3[19], lstep3[29]);
+ u[ 7] = _mm_unpackhi_epi32(lstep3[19], lstep3[29]);
+ u[ 8] = _mm_unpacklo_epi32(lstep3[20], lstep3[26]);
+ u[ 9] = _mm_unpackhi_epi32(lstep3[20], lstep3[26]);
+ u[10] = _mm_unpacklo_epi32(lstep3[21], lstep3[27]);
+ u[11] = _mm_unpackhi_epi32(lstep3[21], lstep3[27]);
+ u[12] = _mm_unpacklo_epi32(lstep3[22], lstep3[24]);
+ u[13] = _mm_unpackhi_epi32(lstep3[22], lstep3[24]);
+ u[14] = _mm_unpacklo_epi32(lstep3[23], lstep3[25]);
+ u[15] = _mm_unpackhi_epi32(lstep3[23], lstep3[25]);
+
+ v[ 0] = k_madd_epi32(u[ 0], k32_p30_p02);
+ v[ 1] = k_madd_epi32(u[ 1], k32_p30_p02);
+ v[ 2] = k_madd_epi32(u[ 2], k32_p30_p02);
+ v[ 3] = k_madd_epi32(u[ 3], k32_p30_p02);
+ v[ 4] = k_madd_epi32(u[ 4], k32_p14_p18);
+ v[ 5] = k_madd_epi32(u[ 5], k32_p14_p18);
+ v[ 6] = k_madd_epi32(u[ 6], k32_p14_p18);
+ v[ 7] = k_madd_epi32(u[ 7], k32_p14_p18);
+ v[ 8] = k_madd_epi32(u[ 8], k32_p22_p10);
+ v[ 9] = k_madd_epi32(u[ 9], k32_p22_p10);
+ v[10] = k_madd_epi32(u[10], k32_p22_p10);
+ v[11] = k_madd_epi32(u[11], k32_p22_p10);
+ v[12] = k_madd_epi32(u[12], k32_p06_p26);
+ v[13] = k_madd_epi32(u[13], k32_p06_p26);
+ v[14] = k_madd_epi32(u[14], k32_p06_p26);
+ v[15] = k_madd_epi32(u[15], k32_p06_p26);
+ v[16] = k_madd_epi32(u[12], k32_m26_p06);
+ v[17] = k_madd_epi32(u[13], k32_m26_p06);
+ v[18] = k_madd_epi32(u[14], k32_m26_p06);
+ v[19] = k_madd_epi32(u[15], k32_m26_p06);
+ v[20] = k_madd_epi32(u[ 8], k32_m10_p22);
+ v[21] = k_madd_epi32(u[ 9], k32_m10_p22);
+ v[22] = k_madd_epi32(u[10], k32_m10_p22);
+ v[23] = k_madd_epi32(u[11], k32_m10_p22);
+ v[24] = k_madd_epi32(u[ 4], k32_m18_p14);
+ v[25] = k_madd_epi32(u[ 5], k32_m18_p14);
+ v[26] = k_madd_epi32(u[ 6], k32_m18_p14);
+ v[27] = k_madd_epi32(u[ 7], k32_m18_p14);
+ v[28] = k_madd_epi32(u[ 0], k32_m02_p30);
+ v[29] = k_madd_epi32(u[ 1], k32_m02_p30);
+ v[30] = k_madd_epi32(u[ 2], k32_m02_p30);
+ v[31] = k_madd_epi32(u[ 3], k32_m02_p30);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_32(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &v[16], &v[17], &v[18], &v[19], &v[20], &v[21], &v[22], &v[23],
+ &v[24], &v[25], &v[26], &v[27], &v[28], &v[29], &v[30], &v[31],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[ 0] = k_packs_epi64(v[ 0], v[ 1]);
+ u[ 1] = k_packs_epi64(v[ 2], v[ 3]);
+ u[ 2] = k_packs_epi64(v[ 4], v[ 5]);
+ u[ 3] = k_packs_epi64(v[ 6], v[ 7]);
+ u[ 4] = k_packs_epi64(v[ 8], v[ 9]);
+ u[ 5] = k_packs_epi64(v[10], v[11]);
+ u[ 6] = k_packs_epi64(v[12], v[13]);
+ u[ 7] = k_packs_epi64(v[14], v[15]);
+ u[ 8] = k_packs_epi64(v[16], v[17]);
+ u[ 9] = k_packs_epi64(v[18], v[19]);
+ u[10] = k_packs_epi64(v[20], v[21]);
+ u[11] = k_packs_epi64(v[22], v[23]);
+ u[12] = k_packs_epi64(v[24], v[25]);
+ u[13] = k_packs_epi64(v[26], v[27]);
+ u[14] = k_packs_epi64(v[28], v[29]);
+ u[15] = k_packs_epi64(v[30], 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);
+
+ 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);
+
+ v[ 0] = _mm_cmplt_epi32(u[ 0], kZero);
+ v[ 1] = _mm_cmplt_epi32(u[ 1], kZero);
+ v[ 2] = _mm_cmplt_epi32(u[ 2], kZero);
+ v[ 3] = _mm_cmplt_epi32(u[ 3], kZero);
+ v[ 4] = _mm_cmplt_epi32(u[ 4], kZero);
+ v[ 5] = _mm_cmplt_epi32(u[ 5], kZero);
+ v[ 6] = _mm_cmplt_epi32(u[ 6], kZero);
+ v[ 7] = _mm_cmplt_epi32(u[ 7], kZero);
+ v[ 8] = _mm_cmplt_epi32(u[ 8], kZero);
+ v[ 9] = _mm_cmplt_epi32(u[ 9], kZero);
+ v[10] = _mm_cmplt_epi32(u[10], kZero);
+ v[11] = _mm_cmplt_epi32(u[11], kZero);
+ v[12] = _mm_cmplt_epi32(u[12], kZero);
+ v[13] = _mm_cmplt_epi32(u[13], kZero);
+ v[14] = _mm_cmplt_epi32(u[14], kZero);
+ v[15] = _mm_cmplt_epi32(u[15], kZero);
+
+ u[ 0] = _mm_sub_epi32(u[ 0], v[ 0]);
+ u[ 1] = _mm_sub_epi32(u[ 1], v[ 1]);
+ u[ 2] = _mm_sub_epi32(u[ 2], v[ 2]);
+ u[ 3] = _mm_sub_epi32(u[ 3], v[ 3]);
+ u[ 4] = _mm_sub_epi32(u[ 4], v[ 4]);
+ u[ 5] = _mm_sub_epi32(u[ 5], v[ 5]);
+ u[ 6] = _mm_sub_epi32(u[ 6], v[ 6]);
+ u[ 7] = _mm_sub_epi32(u[ 7], v[ 7]);
+ u[ 8] = _mm_sub_epi32(u[ 8], v[ 8]);
+ u[ 9] = _mm_sub_epi32(u[ 9], v[ 9]);
+ u[10] = _mm_sub_epi32(u[10], v[10]);
+ u[11] = _mm_sub_epi32(u[11], v[11]);
+ u[12] = _mm_sub_epi32(u[12], v[12]);
+ u[13] = _mm_sub_epi32(u[13], v[13]);
+ u[14] = _mm_sub_epi32(u[14], v[14]);
+ u[15] = _mm_sub_epi32(u[15], v[15]);
+
+ v[ 0] = _mm_add_epi32(u[ 0], K32One);
+ v[ 1] = _mm_add_epi32(u[ 1], K32One);
+ v[ 2] = _mm_add_epi32(u[ 2], K32One);
+ v[ 3] = _mm_add_epi32(u[ 3], K32One);
+ v[ 4] = _mm_add_epi32(u[ 4], K32One);
+ v[ 5] = _mm_add_epi32(u[ 5], K32One);
+ v[ 6] = _mm_add_epi32(u[ 6], K32One);
+ v[ 7] = _mm_add_epi32(u[ 7], K32One);
+ v[ 8] = _mm_add_epi32(u[ 8], K32One);
+ v[ 9] = _mm_add_epi32(u[ 9], K32One);
+ v[10] = _mm_add_epi32(u[10], K32One);
+ v[11] = _mm_add_epi32(u[11], K32One);
+ v[12] = _mm_add_epi32(u[12], K32One);
+ v[13] = _mm_add_epi32(u[13], K32One);
+ v[14] = _mm_add_epi32(u[14], K32One);
+ v[15] = _mm_add_epi32(u[15], K32One);
+
+ u[ 0] = _mm_srai_epi32(v[ 0], 2);
+ u[ 1] = _mm_srai_epi32(v[ 1], 2);
+ u[ 2] = _mm_srai_epi32(v[ 2], 2);
+ u[ 3] = _mm_srai_epi32(v[ 3], 2);
+ u[ 4] = _mm_srai_epi32(v[ 4], 2);
+ u[ 5] = _mm_srai_epi32(v[ 5], 2);
+ u[ 6] = _mm_srai_epi32(v[ 6], 2);
+ u[ 7] = _mm_srai_epi32(v[ 7], 2);
+ u[ 8] = _mm_srai_epi32(v[ 8], 2);
+ u[ 9] = _mm_srai_epi32(v[ 9], 2);
+ u[10] = _mm_srai_epi32(v[10], 2);
+ u[11] = _mm_srai_epi32(v[11], 2);
+ u[12] = _mm_srai_epi32(v[12], 2);
+ u[13] = _mm_srai_epi32(v[13], 2);
+ u[14] = _mm_srai_epi32(v[14], 2);
+ u[15] = _mm_srai_epi32(v[15], 2);
+
+ out[ 2] = _mm_packs_epi32(u[0], u[1]);
+ out[18] = _mm_packs_epi32(u[2], u[3]);
+ out[10] = _mm_packs_epi32(u[4], u[5]);
+ out[26] = _mm_packs_epi32(u[6], u[7]);
+ out[ 6] = _mm_packs_epi32(u[8], u[9]);
+ out[22] = _mm_packs_epi32(u[10], u[11]);
+ out[14] = _mm_packs_epi32(u[12], u[13]);
+ out[30] = _mm_packs_epi32(u[14], u[15]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&out[2], &out[18], &out[10],
+ &out[26], &out[6], &out[22],
+ &out[14], &out[30]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ lstep1[32] = _mm_add_epi32(lstep3[34], lstep2[32]);
+ lstep1[33] = _mm_add_epi32(lstep3[35], lstep2[33]);
+ lstep1[34] = _mm_sub_epi32(lstep2[32], lstep3[34]);
+ lstep1[35] = _mm_sub_epi32(lstep2[33], lstep3[35]);
+ lstep1[36] = _mm_sub_epi32(lstep2[38], lstep3[36]);
+ lstep1[37] = _mm_sub_epi32(lstep2[39], lstep3[37]);
+ lstep1[38] = _mm_add_epi32(lstep3[36], lstep2[38]);
+ lstep1[39] = _mm_add_epi32(lstep3[37], lstep2[39]);
+ lstep1[40] = _mm_add_epi32(lstep3[42], lstep2[40]);
+ lstep1[41] = _mm_add_epi32(lstep3[43], lstep2[41]);
+ lstep1[42] = _mm_sub_epi32(lstep2[40], lstep3[42]);
+ lstep1[43] = _mm_sub_epi32(lstep2[41], lstep3[43]);
+ lstep1[44] = _mm_sub_epi32(lstep2[46], lstep3[44]);
+ lstep1[45] = _mm_sub_epi32(lstep2[47], lstep3[45]);
+ lstep1[46] = _mm_add_epi32(lstep3[44], lstep2[46]);
+ lstep1[47] = _mm_add_epi32(lstep3[45], lstep2[47]);
+ lstep1[48] = _mm_add_epi32(lstep3[50], lstep2[48]);
+ lstep1[49] = _mm_add_epi32(lstep3[51], lstep2[49]);
+ lstep1[50] = _mm_sub_epi32(lstep2[48], lstep3[50]);
+ lstep1[51] = _mm_sub_epi32(lstep2[49], lstep3[51]);
+ lstep1[52] = _mm_sub_epi32(lstep2[54], lstep3[52]);
+ lstep1[53] = _mm_sub_epi32(lstep2[55], lstep3[53]);
+ lstep1[54] = _mm_add_epi32(lstep3[52], lstep2[54]);
+ lstep1[55] = _mm_add_epi32(lstep3[53], lstep2[55]);
+ lstep1[56] = _mm_add_epi32(lstep3[58], lstep2[56]);
+ lstep1[57] = _mm_add_epi32(lstep3[59], lstep2[57]);
+ lstep1[58] = _mm_sub_epi32(lstep2[56], lstep3[58]);
+ lstep1[59] = _mm_sub_epi32(lstep2[57], lstep3[59]);
+ lstep1[60] = _mm_sub_epi32(lstep2[62], lstep3[60]);
+ lstep1[61] = _mm_sub_epi32(lstep2[63], lstep3[61]);
+ lstep1[62] = _mm_add_epi32(lstep3[60], lstep2[62]);
+ lstep1[63] = _mm_add_epi32(lstep3[61], lstep2[63]);
+ }
+ // stage 8
+ {+ const __m128i k32_p31_p01 = pair_set_epi32(cospi_31_64, cospi_1_64);
+ const __m128i k32_p15_p17 = pair_set_epi32(cospi_15_64, cospi_17_64);
+ const __m128i k32_p23_p09 = pair_set_epi32(cospi_23_64, cospi_9_64);
+ const __m128i k32_p07_p25 = pair_set_epi32(cospi_7_64, cospi_25_64);
+ const __m128i k32_m25_p07 = pair_set_epi32(-cospi_25_64, cospi_7_64);
+ const __m128i k32_m09_p23 = pair_set_epi32(-cospi_9_64, cospi_23_64);
+ const __m128i k32_m17_p15 = pair_set_epi32(-cospi_17_64, cospi_15_64);
+ const __m128i k32_m01_p31 = pair_set_epi32(-cospi_1_64, cospi_31_64);
+
+ u[ 0] = _mm_unpacklo_epi32(lstep1[32], lstep1[62]);
+ u[ 1] = _mm_unpackhi_epi32(lstep1[32], lstep1[62]);
+ u[ 2] = _mm_unpacklo_epi32(lstep1[33], lstep1[63]);
+ u[ 3] = _mm_unpackhi_epi32(lstep1[33], lstep1[63]);
+ u[ 4] = _mm_unpacklo_epi32(lstep1[34], lstep1[60]);
+ u[ 5] = _mm_unpackhi_epi32(lstep1[34], lstep1[60]);
+ u[ 6] = _mm_unpacklo_epi32(lstep1[35], lstep1[61]);
+ u[ 7] = _mm_unpackhi_epi32(lstep1[35], lstep1[61]);
+ u[ 8] = _mm_unpacklo_epi32(lstep1[36], lstep1[58]);
+ u[ 9] = _mm_unpackhi_epi32(lstep1[36], lstep1[58]);
+ u[10] = _mm_unpacklo_epi32(lstep1[37], lstep1[59]);
+ u[11] = _mm_unpackhi_epi32(lstep1[37], lstep1[59]);
+ u[12] = _mm_unpacklo_epi32(lstep1[38], lstep1[56]);
+ u[13] = _mm_unpackhi_epi32(lstep1[38], lstep1[56]);
+ u[14] = _mm_unpacklo_epi32(lstep1[39], lstep1[57]);
+ u[15] = _mm_unpackhi_epi32(lstep1[39], lstep1[57]);
+
+ v[ 0] = k_madd_epi32(u[ 0], k32_p31_p01);
+ v[ 1] = k_madd_epi32(u[ 1], k32_p31_p01);
+ v[ 2] = k_madd_epi32(u[ 2], k32_p31_p01);
+ v[ 3] = k_madd_epi32(u[ 3], k32_p31_p01);
+ v[ 4] = k_madd_epi32(u[ 4], k32_p15_p17);
+ v[ 5] = k_madd_epi32(u[ 5], k32_p15_p17);
+ v[ 6] = k_madd_epi32(u[ 6], k32_p15_p17);
+ v[ 7] = k_madd_epi32(u[ 7], k32_p15_p17);
+ v[ 8] = k_madd_epi32(u[ 8], k32_p23_p09);
+ v[ 9] = k_madd_epi32(u[ 9], k32_p23_p09);
+ v[10] = k_madd_epi32(u[10], k32_p23_p09);
+ v[11] = k_madd_epi32(u[11], k32_p23_p09);
+ v[12] = k_madd_epi32(u[12], k32_p07_p25);
+ v[13] = k_madd_epi32(u[13], k32_p07_p25);
+ v[14] = k_madd_epi32(u[14], k32_p07_p25);
+ v[15] = k_madd_epi32(u[15], k32_p07_p25);
+ v[16] = k_madd_epi32(u[12], k32_m25_p07);
+ v[17] = k_madd_epi32(u[13], k32_m25_p07);
+ v[18] = k_madd_epi32(u[14], k32_m25_p07);
+ v[19] = k_madd_epi32(u[15], k32_m25_p07);
+ v[20] = k_madd_epi32(u[ 8], k32_m09_p23);
+ v[21] = k_madd_epi32(u[ 9], k32_m09_p23);
+ v[22] = k_madd_epi32(u[10], k32_m09_p23);
+ v[23] = k_madd_epi32(u[11], k32_m09_p23);
+ v[24] = k_madd_epi32(u[ 4], k32_m17_p15);
+ v[25] = k_madd_epi32(u[ 5], k32_m17_p15);
+ v[26] = k_madd_epi32(u[ 6], k32_m17_p15);
+ v[27] = k_madd_epi32(u[ 7], k32_m17_p15);
+ v[28] = k_madd_epi32(u[ 0], k32_m01_p31);
+ v[29] = k_madd_epi32(u[ 1], k32_m01_p31);
+ v[30] = k_madd_epi32(u[ 2], k32_m01_p31);
+ v[31] = k_madd_epi32(u[ 3], k32_m01_p31);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_32(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &v[16], &v[17], &v[18], &v[19], &v[20], &v[21], &v[22], &v[23],
+ &v[24], &v[25], &v[26], &v[27], &v[28], &v[29], &v[30], &v[31],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[ 0] = k_packs_epi64(v[ 0], v[ 1]);
+ u[ 1] = k_packs_epi64(v[ 2], v[ 3]);
+ u[ 2] = k_packs_epi64(v[ 4], v[ 5]);
+ u[ 3] = k_packs_epi64(v[ 6], v[ 7]);
+ u[ 4] = k_packs_epi64(v[ 8], v[ 9]);
+ u[ 5] = k_packs_epi64(v[10], v[11]);
+ u[ 6] = k_packs_epi64(v[12], v[13]);
+ u[ 7] = k_packs_epi64(v[14], v[15]);
+ u[ 8] = k_packs_epi64(v[16], v[17]);
+ u[ 9] = k_packs_epi64(v[18], v[19]);
+ u[10] = k_packs_epi64(v[20], v[21]);
+ u[11] = k_packs_epi64(v[22], v[23]);
+ u[12] = k_packs_epi64(v[24], v[25]);
+ u[13] = k_packs_epi64(v[26], v[27]);
+ u[14] = k_packs_epi64(v[28], v[29]);
+ u[15] = k_packs_epi64(v[30], 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);
+
+ 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);
+
+ v[ 0] = _mm_cmplt_epi32(u[ 0], kZero);
+ v[ 1] = _mm_cmplt_epi32(u[ 1], kZero);
+ v[ 2] = _mm_cmplt_epi32(u[ 2], kZero);
+ v[ 3] = _mm_cmplt_epi32(u[ 3], kZero);
+ v[ 4] = _mm_cmplt_epi32(u[ 4], kZero);
+ v[ 5] = _mm_cmplt_epi32(u[ 5], kZero);
+ v[ 6] = _mm_cmplt_epi32(u[ 6], kZero);
+ v[ 7] = _mm_cmplt_epi32(u[ 7], kZero);
+ v[ 8] = _mm_cmplt_epi32(u[ 8], kZero);
+ v[ 9] = _mm_cmplt_epi32(u[ 9], kZero);
+ v[10] = _mm_cmplt_epi32(u[10], kZero);
+ v[11] = _mm_cmplt_epi32(u[11], kZero);
+ v[12] = _mm_cmplt_epi32(u[12], kZero);
+ v[13] = _mm_cmplt_epi32(u[13], kZero);
+ v[14] = _mm_cmplt_epi32(u[14], kZero);
+ v[15] = _mm_cmplt_epi32(u[15], kZero);
+
+ u[ 0] = _mm_sub_epi32(u[ 0], v[ 0]);
+ u[ 1] = _mm_sub_epi32(u[ 1], v[ 1]);
+ u[ 2] = _mm_sub_epi32(u[ 2], v[ 2]);
+ u[ 3] = _mm_sub_epi32(u[ 3], v[ 3]);
+ u[ 4] = _mm_sub_epi32(u[ 4], v[ 4]);
+ u[ 5] = _mm_sub_epi32(u[ 5], v[ 5]);
+ u[ 6] = _mm_sub_epi32(u[ 6], v[ 6]);
+ u[ 7] = _mm_sub_epi32(u[ 7], v[ 7]);
+ u[ 8] = _mm_sub_epi32(u[ 8], v[ 8]);
+ u[ 9] = _mm_sub_epi32(u[ 9], v[ 9]);
+ u[10] = _mm_sub_epi32(u[10], v[10]);
+ u[11] = _mm_sub_epi32(u[11], v[11]);
+ u[12] = _mm_sub_epi32(u[12], v[12]);
+ u[13] = _mm_sub_epi32(u[13], v[13]);
+ u[14] = _mm_sub_epi32(u[14], v[14]);
+ u[15] = _mm_sub_epi32(u[15], v[15]);
+
+ v[0] = _mm_add_epi32(u[0], K32One);
+ v[1] = _mm_add_epi32(u[1], K32One);
+ v[2] = _mm_add_epi32(u[2], K32One);
+ v[3] = _mm_add_epi32(u[3], K32One);
+ v[4] = _mm_add_epi32(u[4], K32One);
+ v[5] = _mm_add_epi32(u[5], K32One);
+ v[6] = _mm_add_epi32(u[6], K32One);
+ v[7] = _mm_add_epi32(u[7], K32One);
+ v[8] = _mm_add_epi32(u[8], K32One);
+ v[9] = _mm_add_epi32(u[9], K32One);
+ v[10] = _mm_add_epi32(u[10], K32One);
+ v[11] = _mm_add_epi32(u[11], K32One);
+ v[12] = _mm_add_epi32(u[12], K32One);
+ v[13] = _mm_add_epi32(u[13], K32One);
+ v[14] = _mm_add_epi32(u[14], K32One);
+ v[15] = _mm_add_epi32(u[15], K32One);
+
+ u[0] = _mm_srai_epi32(v[0], 2);
+ u[1] = _mm_srai_epi32(v[1], 2);
+ u[2] = _mm_srai_epi32(v[2], 2);
+ u[3] = _mm_srai_epi32(v[3], 2);
+ u[4] = _mm_srai_epi32(v[4], 2);
+ u[5] = _mm_srai_epi32(v[5], 2);
+ u[6] = _mm_srai_epi32(v[6], 2);
+ u[7] = _mm_srai_epi32(v[7], 2);
+ u[8] = _mm_srai_epi32(v[8], 2);
+ u[9] = _mm_srai_epi32(v[9], 2);
+ u[10] = _mm_srai_epi32(v[10], 2);
+ u[11] = _mm_srai_epi32(v[11], 2);
+ u[12] = _mm_srai_epi32(v[12], 2);
+ u[13] = _mm_srai_epi32(v[13], 2);
+ u[14] = _mm_srai_epi32(v[14], 2);
+ u[15] = _mm_srai_epi32(v[15], 2);
+
+ out[ 1] = _mm_packs_epi32(u[0], u[1]);
+ out[17] = _mm_packs_epi32(u[2], u[3]);
+ out[ 9] = _mm_packs_epi32(u[4], u[5]);
+ out[25] = _mm_packs_epi32(u[6], u[7]);
+ out[ 7] = _mm_packs_epi32(u[8], u[9]);
+ out[23] = _mm_packs_epi32(u[10], u[11]);
+ out[15] = _mm_packs_epi32(u[12], u[13]);
+ out[31] = _mm_packs_epi32(u[14], u[15]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&out[1], &out[17], &out[9],
+ &out[25], &out[7], &out[23],
+ &out[15], &out[31]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i k32_p27_p05 = pair_set_epi32(cospi_27_64, cospi_5_64);
+ const __m128i k32_p11_p21 = pair_set_epi32(cospi_11_64, cospi_21_64);
+ const __m128i k32_p19_p13 = pair_set_epi32(cospi_19_64, cospi_13_64);
+ const __m128i k32_p03_p29 = pair_set_epi32(cospi_3_64, cospi_29_64);
+ const __m128i k32_m29_p03 = pair_set_epi32(-cospi_29_64, cospi_3_64);
+ const __m128i k32_m13_p19 = pair_set_epi32(-cospi_13_64, cospi_19_64);
+ const __m128i k32_m21_p11 = pair_set_epi32(-cospi_21_64, cospi_11_64);
+ const __m128i k32_m05_p27 = pair_set_epi32(-cospi_5_64, cospi_27_64);
+
+ u[ 0] = _mm_unpacklo_epi32(lstep1[40], lstep1[54]);
+ u[ 1] = _mm_unpackhi_epi32(lstep1[40], lstep1[54]);
+ u[ 2] = _mm_unpacklo_epi32(lstep1[41], lstep1[55]);
+ u[ 3] = _mm_unpackhi_epi32(lstep1[41], lstep1[55]);
+ u[ 4] = _mm_unpacklo_epi32(lstep1[42], lstep1[52]);
+ u[ 5] = _mm_unpackhi_epi32(lstep1[42], lstep1[52]);
+ u[ 6] = _mm_unpacklo_epi32(lstep1[43], lstep1[53]);
+ u[ 7] = _mm_unpackhi_epi32(lstep1[43], lstep1[53]);
+ u[ 8] = _mm_unpacklo_epi32(lstep1[44], lstep1[50]);
+ u[ 9] = _mm_unpackhi_epi32(lstep1[44], lstep1[50]);
+ u[10] = _mm_unpacklo_epi32(lstep1[45], lstep1[51]);
+ u[11] = _mm_unpackhi_epi32(lstep1[45], lstep1[51]);
+ u[12] = _mm_unpacklo_epi32(lstep1[46], lstep1[48]);
+ u[13] = _mm_unpackhi_epi32(lstep1[46], lstep1[48]);
+ u[14] = _mm_unpacklo_epi32(lstep1[47], lstep1[49]);
+ u[15] = _mm_unpackhi_epi32(lstep1[47], lstep1[49]);
+
+ v[ 0] = k_madd_epi32(u[ 0], k32_p27_p05);
+ v[ 1] = k_madd_epi32(u[ 1], k32_p27_p05);
+ v[ 2] = k_madd_epi32(u[ 2], k32_p27_p05);
+ v[ 3] = k_madd_epi32(u[ 3], k32_p27_p05);
+ v[ 4] = k_madd_epi32(u[ 4], k32_p11_p21);
+ v[ 5] = k_madd_epi32(u[ 5], k32_p11_p21);
+ v[ 6] = k_madd_epi32(u[ 6], k32_p11_p21);
+ v[ 7] = k_madd_epi32(u[ 7], k32_p11_p21);
+ v[ 8] = k_madd_epi32(u[ 8], k32_p19_p13);
+ v[ 9] = k_madd_epi32(u[ 9], k32_p19_p13);
+ v[10] = k_madd_epi32(u[10], k32_p19_p13);
+ v[11] = k_madd_epi32(u[11], k32_p19_p13);
+ v[12] = k_madd_epi32(u[12], k32_p03_p29);
+ v[13] = k_madd_epi32(u[13], k32_p03_p29);
+ v[14] = k_madd_epi32(u[14], k32_p03_p29);
+ v[15] = k_madd_epi32(u[15], k32_p03_p29);
+ v[16] = k_madd_epi32(u[12], k32_m29_p03);
+ v[17] = k_madd_epi32(u[13], k32_m29_p03);
+ v[18] = k_madd_epi32(u[14], k32_m29_p03);
+ v[19] = k_madd_epi32(u[15], k32_m29_p03);
+ v[20] = k_madd_epi32(u[ 8], k32_m13_p19);
+ v[21] = k_madd_epi32(u[ 9], k32_m13_p19);
+ v[22] = k_madd_epi32(u[10], k32_m13_p19);
+ v[23] = k_madd_epi32(u[11], k32_m13_p19);
+ v[24] = k_madd_epi32(u[ 4], k32_m21_p11);
+ v[25] = k_madd_epi32(u[ 5], k32_m21_p11);
+ v[26] = k_madd_epi32(u[ 6], k32_m21_p11);
+ v[27] = k_madd_epi32(u[ 7], k32_m21_p11);
+ v[28] = k_madd_epi32(u[ 0], k32_m05_p27);
+ v[29] = k_madd_epi32(u[ 1], k32_m05_p27);
+ v[30] = k_madd_epi32(u[ 2], k32_m05_p27);
+ v[31] = k_madd_epi32(u[ 3], k32_m05_p27);
+
+#if DCT_HIGH_BIT_DEPTH
+ overflow = k_check_epi32_overflow_32(
+ &v[0], &v[1], &v[2], &v[3], &v[4], &v[5], &v[6], &v[7],
+ &v[8], &v[9], &v[10], &v[11], &v[12], &v[13], &v[14], &v[15],
+ &v[16], &v[17], &v[18], &v[19], &v[20], &v[21], &v[22], &v[23],
+ &v[24], &v[25], &v[26], &v[27], &v[28], &v[29], &v[30], &v[31],
+ &kZero);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ u[ 0] = k_packs_epi64(v[ 0], v[ 1]);
+ u[ 1] = k_packs_epi64(v[ 2], v[ 3]);
+ u[ 2] = k_packs_epi64(v[ 4], v[ 5]);
+ u[ 3] = k_packs_epi64(v[ 6], v[ 7]);
+ u[ 4] = k_packs_epi64(v[ 8], v[ 9]);
+ u[ 5] = k_packs_epi64(v[10], v[11]);
+ u[ 6] = k_packs_epi64(v[12], v[13]);
+ u[ 7] = k_packs_epi64(v[14], v[15]);
+ u[ 8] = k_packs_epi64(v[16], v[17]);
+ u[ 9] = k_packs_epi64(v[18], v[19]);
+ u[10] = k_packs_epi64(v[20], v[21]);
+ u[11] = k_packs_epi64(v[22], v[23]);
+ u[12] = k_packs_epi64(v[24], v[25]);
+ u[13] = k_packs_epi64(v[26], v[27]);
+ u[14] = k_packs_epi64(v[28], v[29]);
+ u[15] = k_packs_epi64(v[30], 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);
+
+ 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);
+
+ v[ 0] = _mm_cmplt_epi32(u[ 0], kZero);
+ v[ 1] = _mm_cmplt_epi32(u[ 1], kZero);
+ v[ 2] = _mm_cmplt_epi32(u[ 2], kZero);
+ v[ 3] = _mm_cmplt_epi32(u[ 3], kZero);
+ v[ 4] = _mm_cmplt_epi32(u[ 4], kZero);
+ v[ 5] = _mm_cmplt_epi32(u[ 5], kZero);
+ v[ 6] = _mm_cmplt_epi32(u[ 6], kZero);
+ v[ 7] = _mm_cmplt_epi32(u[ 7], kZero);
+ v[ 8] = _mm_cmplt_epi32(u[ 8], kZero);
+ v[ 9] = _mm_cmplt_epi32(u[ 9], kZero);
+ v[10] = _mm_cmplt_epi32(u[10], kZero);
+ v[11] = _mm_cmplt_epi32(u[11], kZero);
+ v[12] = _mm_cmplt_epi32(u[12], kZero);
+ v[13] = _mm_cmplt_epi32(u[13], kZero);
+ v[14] = _mm_cmplt_epi32(u[14], kZero);
+ v[15] = _mm_cmplt_epi32(u[15], kZero);
+
+ u[ 0] = _mm_sub_epi32(u[ 0], v[ 0]);
+ u[ 1] = _mm_sub_epi32(u[ 1], v[ 1]);
+ u[ 2] = _mm_sub_epi32(u[ 2], v[ 2]);
+ u[ 3] = _mm_sub_epi32(u[ 3], v[ 3]);
+ u[ 4] = _mm_sub_epi32(u[ 4], v[ 4]);
+ u[ 5] = _mm_sub_epi32(u[ 5], v[ 5]);
+ u[ 6] = _mm_sub_epi32(u[ 6], v[ 6]);
+ u[ 7] = _mm_sub_epi32(u[ 7], v[ 7]);
+ u[ 8] = _mm_sub_epi32(u[ 8], v[ 8]);
+ u[ 9] = _mm_sub_epi32(u[ 9], v[ 9]);
+ u[10] = _mm_sub_epi32(u[10], v[10]);
+ u[11] = _mm_sub_epi32(u[11], v[11]);
+ u[12] = _mm_sub_epi32(u[12], v[12]);
+ u[13] = _mm_sub_epi32(u[13], v[13]);
+ u[14] = _mm_sub_epi32(u[14], v[14]);
+ u[15] = _mm_sub_epi32(u[15], v[15]);
+
+ v[0] = _mm_add_epi32(u[0], K32One);
+ v[1] = _mm_add_epi32(u[1], K32One);
+ v[2] = _mm_add_epi32(u[2], K32One);
+ v[3] = _mm_add_epi32(u[3], K32One);
+ v[4] = _mm_add_epi32(u[4], K32One);
+ v[5] = _mm_add_epi32(u[5], K32One);
+ v[6] = _mm_add_epi32(u[6], K32One);
+ v[7] = _mm_add_epi32(u[7], K32One);
+ v[8] = _mm_add_epi32(u[8], K32One);
+ v[9] = _mm_add_epi32(u[9], K32One);
+ v[10] = _mm_add_epi32(u[10], K32One);
+ v[11] = _mm_add_epi32(u[11], K32One);
+ v[12] = _mm_add_epi32(u[12], K32One);
+ v[13] = _mm_add_epi32(u[13], K32One);
+ v[14] = _mm_add_epi32(u[14], K32One);
+ v[15] = _mm_add_epi32(u[15], K32One);
+
+ u[0] = _mm_srai_epi32(v[0], 2);
+ u[1] = _mm_srai_epi32(v[1], 2);
+ u[2] = _mm_srai_epi32(v[2], 2);
+ u[3] = _mm_srai_epi32(v[3], 2);
+ u[4] = _mm_srai_epi32(v[4], 2);
+ u[5] = _mm_srai_epi32(v[5], 2);
+ u[6] = _mm_srai_epi32(v[6], 2);
+ u[7] = _mm_srai_epi32(v[7], 2);
+ u[8] = _mm_srai_epi32(v[8], 2);
+ u[9] = _mm_srai_epi32(v[9], 2);
+ u[10] = _mm_srai_epi32(v[10], 2);
+ u[11] = _mm_srai_epi32(v[11], 2);
+ u[12] = _mm_srai_epi32(v[12], 2);
+ u[13] = _mm_srai_epi32(v[13], 2);
+ u[14] = _mm_srai_epi32(v[14], 2);
+ u[15] = _mm_srai_epi32(v[15], 2);
+
+ out[ 5] = _mm_packs_epi32(u[0], u[1]);
+ out[21] = _mm_packs_epi32(u[2], u[3]);
+ out[13] = _mm_packs_epi32(u[4], u[5]);
+ out[29] = _mm_packs_epi32(u[6], u[7]);
+ out[ 3] = _mm_packs_epi32(u[8], u[9]);
+ out[19] = _mm_packs_epi32(u[10], u[11]);
+ out[11] = _mm_packs_epi32(u[12], u[13]);
+ out[27] = _mm_packs_epi32(u[14], u[15]);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&out[5], &out[21], &out[13],
+ &out[29], &out[3], &out[19],
+ &out[11], &out[27]);
+ if (overflow) {+ HIGH_FDCT32x32_2D_ROWS_C(intermediate, output_org);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+#endif // FDCT32x32_HIGH_PRECISION
+ // Transpose the results, do it as four 8x8 transposes.
+ {+ int transpose_block;
+ int16_t *output0 = &intermediate[column_start * 32];
+ tran_low_t *output1 = &output_org[column_start * 32];
+ for (transpose_block = 0; transpose_block < 4; ++transpose_block) {+ __m128i *this_out = &out[8 * transpose_block];
+ // 00 01 02 03 04 05 06 07
+ // 10 11 12 13 14 15 16 17
+ // 20 21 22 23 24 25 26 27
+ // 30 31 32 33 34 35 36 37
+ // 40 41 42 43 44 45 46 47
+ // 50 51 52 53 54 55 56 57
+ // 60 61 62 63 64 65 66 67
+ // 70 71 72 73 74 75 76 77
+ const __m128i tr0_0 = _mm_unpacklo_epi16(this_out[0], this_out[1]);
+ const __m128i tr0_1 = _mm_unpacklo_epi16(this_out[2], this_out[3]);
+ const __m128i tr0_2 = _mm_unpackhi_epi16(this_out[0], this_out[1]);
+ const __m128i tr0_3 = _mm_unpackhi_epi16(this_out[2], this_out[3]);
+ const __m128i tr0_4 = _mm_unpacklo_epi16(this_out[4], this_out[5]);
+ const __m128i tr0_5 = _mm_unpacklo_epi16(this_out[6], this_out[7]);
+ const __m128i tr0_6 = _mm_unpackhi_epi16(this_out[4], this_out[5]);
+ const __m128i tr0_7 = _mm_unpackhi_epi16(this_out[6], this_out[7]);
+ // 00 10 01 11 02 12 03 13
+ // 20 30 21 31 22 32 23 33
+ // 04 14 05 15 06 16 07 17
+ // 24 34 25 35 26 36 27 37
+ // 40 50 41 51 42 52 43 53
+ // 60 70 61 71 62 72 63 73
+ // 54 54 55 55 56 56 57 57
+ // 64 74 65 75 66 76 67 77
+ const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1);
+ const __m128i tr1_1 = _mm_unpacklo_epi32(tr0_2, tr0_3);
+ const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1);
+ const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3);
+ const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5);
+ const __m128i tr1_5 = _mm_unpacklo_epi32(tr0_6, tr0_7);
+ const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5);
+ const __m128i tr1_7 = _mm_unpackhi_epi32(tr0_6, tr0_7);
+ // 00 10 20 30 01 11 21 31
+ // 40 50 60 70 41 51 61 71
+ // 02 12 22 32 03 13 23 33
+ // 42 52 62 72 43 53 63 73
+ // 04 14 24 34 05 15 21 36
+ // 44 54 64 74 45 55 61 76
+ // 06 16 26 36 07 17 27 37
+ // 46 56 66 76 47 57 67 77
+ __m128i tr2_0 = _mm_unpacklo_epi64(tr1_0, tr1_4);
+ __m128i tr2_1 = _mm_unpackhi_epi64(tr1_0, tr1_4);
+ __m128i tr2_2 = _mm_unpacklo_epi64(tr1_2, tr1_6);
+ __m128i tr2_3 = _mm_unpackhi_epi64(tr1_2, tr1_6);
+ __m128i tr2_4 = _mm_unpacklo_epi64(tr1_1, tr1_5);
+ __m128i tr2_5 = _mm_unpackhi_epi64(tr1_1, tr1_5);
+ __m128i tr2_6 = _mm_unpacklo_epi64(tr1_3, tr1_7);
+ __m128i tr2_7 = _mm_unpackhi_epi64(tr1_3, tr1_7);
+ // 00 10 20 30 40 50 60 70
+ // 01 11 21 31 41 51 61 71
+ // 02 12 22 32 42 52 62 72
+ // 03 13 23 33 43 53 63 73
+ // 04 14 24 34 44 54 64 74
+ // 05 15 25 35 45 55 65 75
+ // 06 16 26 36 46 56 66 76
+ // 07 17 27 37 47 57 67 77
+ if (0 == pass) {+ // output[j] = (output[j] + 1 + (output[j] > 0)) >> 2;
+ // TODO(cd): see quality impact of only doing
+ // output[j] = (output[j] + 1) >> 2;
+ // which would remove the code between here ...
+ __m128i tr2_0_0 = _mm_cmpgt_epi16(tr2_0, kZero);
+ __m128i tr2_1_0 = _mm_cmpgt_epi16(tr2_1, kZero);
+ __m128i tr2_2_0 = _mm_cmpgt_epi16(tr2_2, kZero);
+ __m128i tr2_3_0 = _mm_cmpgt_epi16(tr2_3, kZero);
+ __m128i tr2_4_0 = _mm_cmpgt_epi16(tr2_4, kZero);
+ __m128i tr2_5_0 = _mm_cmpgt_epi16(tr2_5, kZero);
+ __m128i tr2_6_0 = _mm_cmpgt_epi16(tr2_6, kZero);
+ __m128i tr2_7_0 = _mm_cmpgt_epi16(tr2_7, kZero);
+ tr2_0 = _mm_sub_epi16(tr2_0, tr2_0_0);
+ tr2_1 = _mm_sub_epi16(tr2_1, tr2_1_0);
+ tr2_2 = _mm_sub_epi16(tr2_2, tr2_2_0);
+ tr2_3 = _mm_sub_epi16(tr2_3, tr2_3_0);
+ tr2_4 = _mm_sub_epi16(tr2_4, tr2_4_0);
+ tr2_5 = _mm_sub_epi16(tr2_5, tr2_5_0);
+ tr2_6 = _mm_sub_epi16(tr2_6, tr2_6_0);
+ tr2_7 = _mm_sub_epi16(tr2_7, tr2_7_0);
+ // ... and here.
+ // PS: also change code in vp9/encoder/vp9_dct.c
+ tr2_0 = _mm_add_epi16(tr2_0, kOne);
+ tr2_1 = _mm_add_epi16(tr2_1, kOne);
+ tr2_2 = _mm_add_epi16(tr2_2, kOne);
+ tr2_3 = _mm_add_epi16(tr2_3, kOne);
+ tr2_4 = _mm_add_epi16(tr2_4, kOne);
+ tr2_5 = _mm_add_epi16(tr2_5, kOne);
+ tr2_6 = _mm_add_epi16(tr2_6, kOne);
+ tr2_7 = _mm_add_epi16(tr2_7, kOne);
+ tr2_0 = _mm_srai_epi16(tr2_0, 2);
+ tr2_1 = _mm_srai_epi16(tr2_1, 2);
+ tr2_2 = _mm_srai_epi16(tr2_2, 2);
+ tr2_3 = _mm_srai_epi16(tr2_3, 2);
+ tr2_4 = _mm_srai_epi16(tr2_4, 2);
+ tr2_5 = _mm_srai_epi16(tr2_5, 2);
+ tr2_6 = _mm_srai_epi16(tr2_6, 2);
+ tr2_7 = _mm_srai_epi16(tr2_7, 2);
+ }
+ // Note: even though all these stores are aligned, using the aligned
+ // intrinsic make the code slightly slower.
+ if (pass == 0) {+ _mm_storeu_si128((__m128i *)(output0 + 0 * 32), tr2_0);
+ _mm_storeu_si128((__m128i *)(output0 + 1 * 32), tr2_1);
+ _mm_storeu_si128((__m128i *)(output0 + 2 * 32), tr2_2);
+ _mm_storeu_si128((__m128i *)(output0 + 3 * 32), tr2_3);
+ _mm_storeu_si128((__m128i *)(output0 + 4 * 32), tr2_4);
+ _mm_storeu_si128((__m128i *)(output0 + 5 * 32), tr2_5);
+ _mm_storeu_si128((__m128i *)(output0 + 6 * 32), tr2_6);
+ _mm_storeu_si128((__m128i *)(output0 + 7 * 32), tr2_7);
+ // Process next 8x8
+ output0 += 8;
+ } else {+ storeu_output(&tr2_0, (output1 + 0 * 32));
+ storeu_output(&tr2_1, (output1 + 1 * 32));
+ storeu_output(&tr2_2, (output1 + 2 * 32));
+ storeu_output(&tr2_3, (output1 + 3 * 32));
+ storeu_output(&tr2_4, (output1 + 4 * 32));
+ storeu_output(&tr2_5, (output1 + 5 * 32));
+ storeu_output(&tr2_6, (output1 + 6 * 32));
+ storeu_output(&tr2_7, (output1 + 7 * 32));
+ // Process next 8x8
+ output1 += 8;
+ }
+ }
+ }
+ }
+ }
+} // NOLINT
+
+#undef ADD_EPI16
+#undef SUB_EPI16
+#undef HIGH_FDCT32x32_2D_C
+#undef HIGH_FDCT32x32_2D_ROWS_C
--- /dev/null
+++ b/vp10/common/x86/vp10_fwd_txfm_impl_sse2.h
@@ -1,0 +1,1027 @@
+/*
+ * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <emmintrin.h> // SSE2
+
+#include "./vpx_dsp_rtcd.h"
+#include "vpx_dsp/txfm_common.h"
+#include "vpx_dsp/x86/fwd_txfm_sse2.h"
+#include "vpx_dsp/x86/txfm_common_sse2.h"
+#include "vpx_ports/mem.h"
+
+// TODO(jingning) The high bit-depth functions need rework for performance.
+// After we properly fix the high bit-depth function implementations, this
+// file's dependency should be substantially simplified.
+#if DCT_HIGH_BIT_DEPTH
+#define ADD_EPI16 _mm_adds_epi16
+#define SUB_EPI16 _mm_subs_epi16
+
+#else
+#define ADD_EPI16 _mm_add_epi16
+#define SUB_EPI16 _mm_sub_epi16
+#endif
+
+void FDCT4x4_2D(const int16_t *input, tran_low_t *output, int stride) {+ // This 2D transform implements 4 vertical 1D transforms followed
+ // by 4 horizontal 1D transforms. The multiplies and adds are as given
+ // by Chen, Smith and Fralick ('77). The commands for moving the data+ // around have been minimized by hand.
+ // For the purposes of the comments, the 16 inputs are referred to at i0
+ // through iF (in raster order), intermediate variables are a0, b0, c0
+ // through f, and correspond to the in-place computations mapped to input
+ // locations. The outputs, o0 through oF are labeled according to the
+ // output locations.
+
+ // Constants
+ // These are the coefficients used for the multiplies.
+ // In the comments, pN means cos(N pi /64) and mN is -cos(N pi /64),
+ // where cospi_N_64 = cos(N pi /64)
+ const __m128i k__cospi_A = octa_set_epi16(cospi_16_64, cospi_16_64,
+ cospi_16_64, cospi_16_64,
+ cospi_16_64, -cospi_16_64,
+ cospi_16_64, -cospi_16_64);
+ const __m128i k__cospi_B = octa_set_epi16(cospi_16_64, -cospi_16_64,
+ cospi_16_64, -cospi_16_64,
+ cospi_16_64, cospi_16_64,
+ cospi_16_64, cospi_16_64);
+ const __m128i k__cospi_C = octa_set_epi16(cospi_8_64, cospi_24_64,
+ cospi_8_64, cospi_24_64,
+ cospi_24_64, -cospi_8_64,
+ cospi_24_64, -cospi_8_64);
+ const __m128i k__cospi_D = octa_set_epi16(cospi_24_64, -cospi_8_64,
+ cospi_24_64, -cospi_8_64,
+ cospi_8_64, cospi_24_64,
+ cospi_8_64, cospi_24_64);
+ const __m128i k__cospi_E = octa_set_epi16(cospi_16_64, cospi_16_64,
+ cospi_16_64, cospi_16_64,
+ cospi_16_64, cospi_16_64,
+ cospi_16_64, cospi_16_64);
+ const __m128i k__cospi_F = octa_set_epi16(cospi_16_64, -cospi_16_64,
+ cospi_16_64, -cospi_16_64,
+ cospi_16_64, -cospi_16_64,
+ cospi_16_64, -cospi_16_64);
+ const __m128i k__cospi_G = octa_set_epi16(cospi_8_64, cospi_24_64,
+ cospi_8_64, cospi_24_64,
+ -cospi_8_64, -cospi_24_64,
+ -cospi_8_64, -cospi_24_64);
+ const __m128i k__cospi_H = octa_set_epi16(cospi_24_64, -cospi_8_64,
+ cospi_24_64, -cospi_8_64,
+ -cospi_24_64, cospi_8_64,
+ -cospi_24_64, cospi_8_64);
+
+ const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
+ // This second rounding constant saves doing some extra adds at the end
+ const __m128i k__DCT_CONST_ROUNDING2 = _mm_set1_epi32(DCT_CONST_ROUNDING
+ +(DCT_CONST_ROUNDING << 1));
+ const int DCT_CONST_BITS2 = DCT_CONST_BITS + 2;
+ const __m128i k__nonzero_bias_a = _mm_setr_epi16(0, 1, 1, 1, 1, 1, 1, 1);
+ const __m128i k__nonzero_bias_b = _mm_setr_epi16(1, 0, 0, 0, 0, 0, 0, 0);
+ __m128i in0, in1;
+#if DCT_HIGH_BIT_DEPTH
+ __m128i cmp0, cmp1;
+ int test, overflow;
+#endif
+
+ // Load inputs.
+ in0 = _mm_loadl_epi64((const __m128i *)(input + 0 * stride));
+ in1 = _mm_loadl_epi64((const __m128i *)(input + 1 * stride));
+ in1 = _mm_unpacklo_epi64(in1, _mm_loadl_epi64((const __m128i *)
+ (input + 2 * stride)));
+ in0 = _mm_unpacklo_epi64(in0, _mm_loadl_epi64((const __m128i *)
+ (input + 3 * stride)));
+ // in0 = [i0 i1 i2 i3 iC iD iE iF]
+ // in1 = [i4 i5 i6 i7 i8 i9 iA iB]
+#if DCT_HIGH_BIT_DEPTH
+ // Check inputs small enough to use optimised code
+ cmp0 = _mm_xor_si128(_mm_cmpgt_epi16(in0, _mm_set1_epi16(0x3ff)),
+ _mm_cmplt_epi16(in0, _mm_set1_epi16(0xfc00)));
+ cmp1 = _mm_xor_si128(_mm_cmpgt_epi16(in1, _mm_set1_epi16(0x3ff)),
+ _mm_cmplt_epi16(in1, _mm_set1_epi16(0xfc00)));
+ test = _mm_movemask_epi8(_mm_or_si128(cmp0, cmp1));
+ if (test) {+ vpx_highbd_fdct4x4_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+
+ // multiply by 16 to give some extra precision
+ in0 = _mm_slli_epi16(in0, 4);
+ in1 = _mm_slli_epi16(in1, 4);
+ // if (i == 0 && input[0]) input[0] += 1;
+ // add 1 to the upper left pixel if it is non-zero, which helps reduce
+ // the round-trip error
+ {+ // The mask will only contain whether the first value is zero, all
+ // other comparison will fail as something shifted by 4 (above << 4)
+ // can never be equal to one. To increment in the non-zero case, we
+ // add the mask and one for the first element:
+ // - if zero, mask = -1, v = v - 1 + 1 = v
+ // - if non-zero, mask = 0, v = v + 0 + 1 = v + 1
+ __m128i mask = _mm_cmpeq_epi16(in0, k__nonzero_bias_a);
+ in0 = _mm_add_epi16(in0, mask);
+ in0 = _mm_add_epi16(in0, k__nonzero_bias_b);
+ }
+ // There are 4 total stages, alternating between an add/subtract stage
+ // followed by an multiply-and-add stage.
+ {+ // Stage 1: Add/subtract
+
+ // in0 = [i0 i1 i2 i3 iC iD iE iF]
+ // in1 = [i4 i5 i6 i7 i8 i9 iA iB]
+ const __m128i r0 = _mm_unpacklo_epi16(in0, in1);
+ const __m128i r1 = _mm_unpackhi_epi16(in0, in1);
+ // r0 = [i0 i4 i1 i5 i2 i6 i3 i7]
+ // r1 = [iC i8 iD i9 iE iA iF iB]
+ const __m128i r2 = _mm_shuffle_epi32(r0, 0xB4);
+ const __m128i r3 = _mm_shuffle_epi32(r1, 0xB4);
+ // r2 = [i0 i4 i1 i5 i3 i7 i2 i6]
+ // r3 = [iC i8 iD i9 iF iB iE iA]
+
+ const __m128i t0 = _mm_add_epi16(r2, r3);
+ const __m128i t1 = _mm_sub_epi16(r2, r3);
+ // t0 = [a0 a4 a1 a5 a3 a7 a2 a6]
+ // t1 = [aC a8 aD a9 aF aB aE aA]
+
+ // Stage 2: multiply by constants (which gets us into 32 bits).
+ // The constants needed here are:
+ // k__cospi_A = [p16 p16 p16 p16 p16 m16 p16 m16]
+ // k__cospi_B = [p16 m16 p16 m16 p16 p16 p16 p16]
+ // k__cospi_C = [p08 p24 p08 p24 p24 m08 p24 m08]
+ // k__cospi_D = [p24 m08 p24 m08 p08 p24 p08 p24]
+ const __m128i u0 = _mm_madd_epi16(t0, k__cospi_A);
+ const __m128i u2 = _mm_madd_epi16(t0, k__cospi_B);
+ const __m128i u1 = _mm_madd_epi16(t1, k__cospi_C);
+ const __m128i u3 = _mm_madd_epi16(t1, k__cospi_D);
+ // Then add and right-shift to get back to 16-bit range
+ const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING);
+ const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING);
+ const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING);
+ const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING);
+ const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
+ const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
+ const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
+ const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
+ // w0 = [b0 b1 b7 b6]
+ // w1 = [b8 b9 bF bE]
+ // w2 = [b4 b5 b3 b2]
+ // w3 = [bC bD bB bA]
+ const __m128i x0 = _mm_packs_epi32(w0, w1);
+ const __m128i x1 = _mm_packs_epi32(w2, w3);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x2(&x0, &x1);
+ if (overflow) {+ vpx_highbd_fdct4x4_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // x0 = [b0 b1 b7 b6 b8 b9 bF bE]
+ // x1 = [b4 b5 b3 b2 bC bD bB bA]
+ in0 = _mm_shuffle_epi32(x0, 0xD8);
+ in1 = _mm_shuffle_epi32(x1, 0x8D);
+ // in0 = [b0 b1 b8 b9 b7 b6 bF bE]
+ // in1 = [b3 b2 bB bA b4 b5 bC bD]
+ }
+ {+ // vertical DCTs finished. Now we do the horizontal DCTs.
+ // Stage 3: Add/subtract
+
+ const __m128i t0 = ADD_EPI16(in0, in1);
+ const __m128i t1 = SUB_EPI16(in0, in1);
+ // t0 = [c0 c1 c8 c9 c4 c5 cC cD]
+ // t1 = [c3 c2 cB cA -c7 -c6 -cF -cE]
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x2(&t0, &t1);
+ if (overflow) {+ vpx_highbd_fdct4x4_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+
+ // Stage 4: multiply by constants (which gets us into 32 bits).
+ {+ // The constants needed here are:
+ // k__cospi_E = [p16 p16 p16 p16 p16 p16 p16 p16]
+ // k__cospi_F = [p16 m16 p16 m16 p16 m16 p16 m16]
+ // k__cospi_G = [p08 p24 p08 p24 m08 m24 m08 m24]
+ // k__cospi_H = [p24 m08 p24 m08 m24 p08 m24 p08]
+ const __m128i u0 = _mm_madd_epi16(t0, k__cospi_E);
+ const __m128i u1 = _mm_madd_epi16(t0, k__cospi_F);
+ const __m128i u2 = _mm_madd_epi16(t1, k__cospi_G);
+ const __m128i u3 = _mm_madd_epi16(t1, k__cospi_H);
+ // Then add and right-shift to get back to 16-bit range
+ // but this combines the final right-shift as well to save operations
+ // This unusual rounding operations is to maintain bit-accurate
+ // compatibility with the c version of this function which has two
+ // rounding steps in a row.
+ const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING2);
+ const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING2);
+ const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING2);
+ const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING2);
+ const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS2);
+ const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS2);
+ const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS2);
+ const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS2);
+ // w0 = [o0 o4 o8 oC]
+ // w1 = [o2 o6 oA oE]
+ // w2 = [o1 o5 o9 oD]
+ // w3 = [o3 o7 oB oF]
+ // remember the o's are numbered according to the correct output location
+ const __m128i x0 = _mm_packs_epi32(w0, w1);
+ const __m128i x1 = _mm_packs_epi32(w2, w3);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x2(&x0, &x1);
+ if (overflow) {+ vpx_highbd_fdct4x4_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ {+ // x0 = [o0 o4 o8 oC o2 o6 oA oE]
+ // x1 = [o1 o5 o9 oD o3 o7 oB oF]
+ const __m128i y0 = _mm_unpacklo_epi16(x0, x1);
+ const __m128i y1 = _mm_unpackhi_epi16(x0, x1);
+ // y0 = [o0 o1 o4 o5 o8 o9 oC oD]
+ // y1 = [o2 o3 o6 o7 oA oB oE oF]
+ in0 = _mm_unpacklo_epi32(y0, y1);
+ // in0 = [o0 o1 o2 o3 o4 o5 o6 o7]
+ in1 = _mm_unpackhi_epi32(y0, y1);
+ // in1 = [o8 o9 oA oB oC oD oE oF]
+ }
+ }
+ }
+ // Post-condition (v + 1) >> 2 is now incorporated into previous
+ // add and right-shift commands. Only 2 store instructions needed
+ // because we are using the fact that 1/3 are stored just after 0/2.
+ storeu_output(&in0, output + 0 * 4);
+ storeu_output(&in1, output + 2 * 4);
+}
+
+
+void FDCT8x8_2D(const int16_t *input, tran_low_t *output, int stride) {+ int pass;
+ // Constants
+ // When we use them, in one case, they are all the same. In all others
+ // it's a pair of them that we need to repeat four times. This is done
+ // by constructing the 32 bit constant corresponding to that pair.
+ const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
+ const __m128i k__cospi_p16_m16 = 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_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__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
+#if DCT_HIGH_BIT_DEPTH
+ int overflow;
+#endif
+ // Load input
+ __m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
+ __m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
+ __m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
+ __m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
+ __m128i in4 = _mm_load_si128((const __m128i *)(input + 4 * stride));
+ __m128i in5 = _mm_load_si128((const __m128i *)(input + 5 * stride));
+ __m128i in6 = _mm_load_si128((const __m128i *)(input + 6 * stride));
+ __m128i in7 = _mm_load_si128((const __m128i *)(input + 7 * stride));
+ // Pre-condition input (shift by two)
+ in0 = _mm_slli_epi16(in0, 2);
+ in1 = _mm_slli_epi16(in1, 2);
+ in2 = _mm_slli_epi16(in2, 2);
+ in3 = _mm_slli_epi16(in3, 2);
+ in4 = _mm_slli_epi16(in4, 2);
+ in5 = _mm_slli_epi16(in5, 2);
+ in6 = _mm_slli_epi16(in6, 2);
+ in7 = _mm_slli_epi16(in7, 2);
+
+ // We do two passes, first the columns, then the rows. The results of the
+ // first pass are transposed so that the same column code can be reused. The
+ // results of the second pass are also transposed so that the rows (processed
+ // as columns) are put back in row positions.
+ for (pass = 0; pass < 2; pass++) {+ // To store results of each pass before the transpose.
+ __m128i res0, res1, res2, res3, res4, res5, res6, res7;
+ // Add/subtract
+ const __m128i q0 = ADD_EPI16(in0, in7);
+ const __m128i q1 = ADD_EPI16(in1, in6);
+ const __m128i q2 = ADD_EPI16(in2, in5);
+ const __m128i q3 = ADD_EPI16(in3, in4);
+ const __m128i q4 = SUB_EPI16(in3, in4);
+ const __m128i q5 = SUB_EPI16(in2, in5);
+ const __m128i q6 = SUB_EPI16(in1, in6);
+ const __m128i q7 = SUB_EPI16(in0, in7);
+#if DCT_HIGH_BIT_DEPTH
+ if (pass == 1) {+ overflow = check_epi16_overflow_x8(&q0, &q1, &q2, &q3,
+ &q4, &q5, &q6, &q7);
+ if (overflow) {+ vpx_highbd_fdct8x8_c(input, output, stride);
+ return;
+ }
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // Work on first four results
+ {+ // Add/subtract
+ const __m128i r0 = ADD_EPI16(q0, q3);
+ const __m128i r1 = ADD_EPI16(q1, q2);
+ const __m128i r2 = SUB_EPI16(q1, q2);
+ const __m128i r3 = SUB_EPI16(q0, q3);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&r0, &r1, &r2, &r3);
+ if (overflow) {+ vpx_highbd_fdct8x8_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // Interleave to do the multiply by constants which gets us into 32bits
+ {+ const __m128i t0 = _mm_unpacklo_epi16(r0, r1);
+ const __m128i t1 = _mm_unpackhi_epi16(r0, r1);
+ const __m128i t2 = _mm_unpacklo_epi16(r2, r3);
+ const __m128i t3 = _mm_unpackhi_epi16(r2, r3);
+ const __m128i u0 = _mm_madd_epi16(t0, k__cospi_p16_p16);
+ const __m128i u1 = _mm_madd_epi16(t1, k__cospi_p16_p16);
+ const __m128i u2 = _mm_madd_epi16(t0, k__cospi_p16_m16);
+ const __m128i u3 = _mm_madd_epi16(t1, k__cospi_p16_m16);
+ const __m128i u4 = _mm_madd_epi16(t2, k__cospi_p24_p08);
+ const __m128i u5 = _mm_madd_epi16(t3, k__cospi_p24_p08);
+ const __m128i u6 = _mm_madd_epi16(t2, k__cospi_m08_p24);
+ const __m128i u7 = _mm_madd_epi16(t3, k__cospi_m08_p24);
+ // dct_const_round_shift
+ const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING);
+ const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING);
+ const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING);
+ const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING);
+ const __m128i v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING);
+ const __m128i v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING);
+ const __m128i v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING);
+ const __m128i v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING);
+ const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
+ const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
+ const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
+ const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
+ const __m128i w4 = _mm_srai_epi32(v4, DCT_CONST_BITS);
+ const __m128i w5 = _mm_srai_epi32(v5, DCT_CONST_BITS);
+ const __m128i w6 = _mm_srai_epi32(v6, DCT_CONST_BITS);
+ const __m128i w7 = _mm_srai_epi32(v7, DCT_CONST_BITS);
+ // Combine
+ res0 = _mm_packs_epi32(w0, w1);
+ res4 = _mm_packs_epi32(w2, w3);
+ res2 = _mm_packs_epi32(w4, w5);
+ res6 = _mm_packs_epi32(w6, w7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&res0, &res4, &res2, &res6);
+ if (overflow) {+ vpx_highbd_fdct8x8_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+ // Work on next four results
+ {+ // Interleave to do the multiply by constants which gets us into 32bits
+ const __m128i d0 = _mm_unpacklo_epi16(q6, q5);
+ const __m128i d1 = _mm_unpackhi_epi16(q6, q5);
+ const __m128i e0 = _mm_madd_epi16(d0, k__cospi_p16_m16);
+ const __m128i e1 = _mm_madd_epi16(d1, k__cospi_p16_m16);
+ const __m128i e2 = _mm_madd_epi16(d0, k__cospi_p16_p16);
+ const __m128i e3 = _mm_madd_epi16(d1, k__cospi_p16_p16);
+ // dct_const_round_shift
+ const __m128i f0 = _mm_add_epi32(e0, k__DCT_CONST_ROUNDING);
+ const __m128i f1 = _mm_add_epi32(e1, k__DCT_CONST_ROUNDING);
+ const __m128i f2 = _mm_add_epi32(e2, k__DCT_CONST_ROUNDING);
+ const __m128i f3 = _mm_add_epi32(e3, k__DCT_CONST_ROUNDING);
+ const __m128i s0 = _mm_srai_epi32(f0, DCT_CONST_BITS);
+ const __m128i s1 = _mm_srai_epi32(f1, DCT_CONST_BITS);
+ const __m128i s2 = _mm_srai_epi32(f2, DCT_CONST_BITS);
+ const __m128i s3 = _mm_srai_epi32(f3, DCT_CONST_BITS);
+ // Combine
+ const __m128i r0 = _mm_packs_epi32(s0, s1);
+ const __m128i r1 = _mm_packs_epi32(s2, s3);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x2(&r0, &r1);
+ if (overflow) {+ vpx_highbd_fdct8x8_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ {+ // Add/subtract
+ const __m128i x0 = ADD_EPI16(q4, r0);
+ const __m128i x1 = SUB_EPI16(q4, r0);
+ const __m128i x2 = SUB_EPI16(q7, r1);
+ const __m128i x3 = ADD_EPI16(q7, r1);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&x0, &x1, &x2, &x3);
+ if (overflow) {+ vpx_highbd_fdct8x8_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // Interleave to do the multiply by constants which gets us into 32bits
+ {+ const __m128i t0 = _mm_unpacklo_epi16(x0, x3);
+ const __m128i t1 = _mm_unpackhi_epi16(x0, x3);
+ const __m128i t2 = _mm_unpacklo_epi16(x1, x2);
+ const __m128i t3 = _mm_unpackhi_epi16(x1, x2);
+ const __m128i u0 = _mm_madd_epi16(t0, k__cospi_p28_p04);
+ const __m128i u1 = _mm_madd_epi16(t1, k__cospi_p28_p04);
+ const __m128i u2 = _mm_madd_epi16(t0, k__cospi_m04_p28);
+ const __m128i u3 = _mm_madd_epi16(t1, k__cospi_m04_p28);
+ const __m128i u4 = _mm_madd_epi16(t2, k__cospi_p12_p20);
+ const __m128i u5 = _mm_madd_epi16(t3, k__cospi_p12_p20);
+ const __m128i u6 = _mm_madd_epi16(t2, k__cospi_m20_p12);
+ const __m128i u7 = _mm_madd_epi16(t3, k__cospi_m20_p12);
+ // dct_const_round_shift
+ const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING);
+ const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING);
+ const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING);
+ const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING);
+ const __m128i v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING);
+ const __m128i v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING);
+ const __m128i v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING);
+ const __m128i v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING);
+ const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
+ const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
+ const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
+ const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
+ const __m128i w4 = _mm_srai_epi32(v4, DCT_CONST_BITS);
+ const __m128i w5 = _mm_srai_epi32(v5, DCT_CONST_BITS);
+ const __m128i w6 = _mm_srai_epi32(v6, DCT_CONST_BITS);
+ const __m128i w7 = _mm_srai_epi32(v7, DCT_CONST_BITS);
+ // Combine
+ res1 = _mm_packs_epi32(w0, w1);
+ res7 = _mm_packs_epi32(w2, w3);
+ res5 = _mm_packs_epi32(w4, w5);
+ res3 = _mm_packs_epi32(w6, w7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&res1, &res7, &res5, &res3);
+ if (overflow) {+ vpx_highbd_fdct8x8_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+ }
+ // Transpose the 8x8.
+ {+ // 00 01 02 03 04 05 06 07
+ // 10 11 12 13 14 15 16 17
+ // 20 21 22 23 24 25 26 27
+ // 30 31 32 33 34 35 36 37
+ // 40 41 42 43 44 45 46 47
+ // 50 51 52 53 54 55 56 57
+ // 60 61 62 63 64 65 66 67
+ // 70 71 72 73 74 75 76 77
+ const __m128i tr0_0 = _mm_unpacklo_epi16(res0, res1);
+ const __m128i tr0_1 = _mm_unpacklo_epi16(res2, res3);
+ const __m128i tr0_2 = _mm_unpackhi_epi16(res0, res1);
+ const __m128i tr0_3 = _mm_unpackhi_epi16(res2, res3);
+ const __m128i tr0_4 = _mm_unpacklo_epi16(res4, res5);
+ const __m128i tr0_5 = _mm_unpacklo_epi16(res6, res7);
+ const __m128i tr0_6 = _mm_unpackhi_epi16(res4, res5);
+ const __m128i tr0_7 = _mm_unpackhi_epi16(res6, res7);
+ // 00 10 01 11 02 12 03 13
+ // 20 30 21 31 22 32 23 33
+ // 04 14 05 15 06 16 07 17
+ // 24 34 25 35 26 36 27 37
+ // 40 50 41 51 42 52 43 53
+ // 60 70 61 71 62 72 63 73
+ // 54 54 55 55 56 56 57 57
+ // 64 74 65 75 66 76 67 77
+ const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1);
+ const __m128i tr1_1 = _mm_unpacklo_epi32(tr0_2, tr0_3);
+ const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1);
+ const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3);
+ const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5);
+ const __m128i tr1_5 = _mm_unpacklo_epi32(tr0_6, tr0_7);
+ const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5);
+ const __m128i tr1_7 = _mm_unpackhi_epi32(tr0_6, tr0_7);
+ // 00 10 20 30 01 11 21 31
+ // 40 50 60 70 41 51 61 71
+ // 02 12 22 32 03 13 23 33
+ // 42 52 62 72 43 53 63 73
+ // 04 14 24 34 05 15 21 36
+ // 44 54 64 74 45 55 61 76
+ // 06 16 26 36 07 17 27 37
+ // 46 56 66 76 47 57 67 77
+ in0 = _mm_unpacklo_epi64(tr1_0, tr1_4);
+ in1 = _mm_unpackhi_epi64(tr1_0, tr1_4);
+ in2 = _mm_unpacklo_epi64(tr1_2, tr1_6);
+ in3 = _mm_unpackhi_epi64(tr1_2, tr1_6);
+ in4 = _mm_unpacklo_epi64(tr1_1, tr1_5);
+ in5 = _mm_unpackhi_epi64(tr1_1, tr1_5);
+ in6 = _mm_unpacklo_epi64(tr1_3, tr1_7);
+ in7 = _mm_unpackhi_epi64(tr1_3, tr1_7);
+ // 00 10 20 30 40 50 60 70
+ // 01 11 21 31 41 51 61 71
+ // 02 12 22 32 42 52 62 72
+ // 03 13 23 33 43 53 63 73
+ // 04 14 24 34 44 54 64 74
+ // 05 15 25 35 45 55 65 75
+ // 06 16 26 36 46 56 66 76
+ // 07 17 27 37 47 57 67 77
+ }
+ }
+ // Post-condition output and store it
+ {+ // Post-condition (division by two)
+ // division of two 16 bits signed numbers using shifts
+ // n / 2 = (n - (n >> 15)) >> 1
+ const __m128i sign_in0 = _mm_srai_epi16(in0, 15);
+ const __m128i sign_in1 = _mm_srai_epi16(in1, 15);
+ const __m128i sign_in2 = _mm_srai_epi16(in2, 15);
+ const __m128i sign_in3 = _mm_srai_epi16(in3, 15);
+ const __m128i sign_in4 = _mm_srai_epi16(in4, 15);
+ const __m128i sign_in5 = _mm_srai_epi16(in5, 15);
+ const __m128i sign_in6 = _mm_srai_epi16(in6, 15);
+ const __m128i sign_in7 = _mm_srai_epi16(in7, 15);
+ in0 = _mm_sub_epi16(in0, sign_in0);
+ in1 = _mm_sub_epi16(in1, sign_in1);
+ in2 = _mm_sub_epi16(in2, sign_in2);
+ in3 = _mm_sub_epi16(in3, sign_in3);
+ in4 = _mm_sub_epi16(in4, sign_in4);
+ in5 = _mm_sub_epi16(in5, sign_in5);
+ in6 = _mm_sub_epi16(in6, sign_in6);
+ in7 = _mm_sub_epi16(in7, sign_in7);
+ in0 = _mm_srai_epi16(in0, 1);
+ in1 = _mm_srai_epi16(in1, 1);
+ in2 = _mm_srai_epi16(in2, 1);
+ in3 = _mm_srai_epi16(in3, 1);
+ in4 = _mm_srai_epi16(in4, 1);
+ in5 = _mm_srai_epi16(in5, 1);
+ in6 = _mm_srai_epi16(in6, 1);
+ in7 = _mm_srai_epi16(in7, 1);
+ // store results
+ store_output(&in0, (output + 0 * 8));
+ store_output(&in1, (output + 1 * 8));
+ store_output(&in2, (output + 2 * 8));
+ store_output(&in3, (output + 3 * 8));
+ store_output(&in4, (output + 4 * 8));
+ store_output(&in5, (output + 5 * 8));
+ store_output(&in6, (output + 6 * 8));
+ store_output(&in7, (output + 7 * 8));
+ }
+}
+
+void FDCT16x16_2D(const int16_t *input, tran_low_t *output, int stride) {+ // The 2D transform is done with two passes which are actually pretty
+ // similar. In the first one, we transform the columns and transpose
+ // the results. In the second one, we transform the rows. To achieve that,
+ // as the first pass results are transposed, we transpose the columns (that
+ // is the transposed rows) and transpose the results (so that it goes back
+ // in normal/row positions).
+ int pass;
+ // We need an intermediate buffer between passes.
+ DECLARE_ALIGNED(16, int16_t, intermediate[256]);
+ const int16_t *in = input;
+ int16_t *out0 = intermediate;
+ tran_low_t *out1 = output;
+ // Constants
+ // When we use them, in one case, they are all the same. In all others
+ // it's a pair of them that we need to repeat four times. This is done
+ // by constructing the 32 bit constant corresponding to that pair.
+ const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
+ const __m128i k__cospi_p16_m16 = 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_p08_m24 = pair_set_epi16(cospi_8_64, -cospi_24_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);
+ const __m128i kOne = _mm_set1_epi16(1);
+ // Do the two transform/transpose passes
+ for (pass = 0; pass < 2; ++pass) {+ // We process eight columns (transposed rows in second pass) at a time.
+ int column_start;
+#if DCT_HIGH_BIT_DEPTH
+ int overflow;
+#endif
+ for (column_start = 0; column_start < 16; column_start += 8) {+ __m128i in00, in01, in02, in03, in04, in05, in06, in07;
+ __m128i in08, in09, in10, in11, in12, in13, in14, in15;
+ __m128i input0, input1, input2, input3, input4, input5, input6, input7;
+ __m128i step1_0, step1_1, step1_2, step1_3;
+ __m128i step1_4, step1_5, step1_6, step1_7;
+ __m128i step2_1, step2_2, step2_3, step2_4, step2_5, step2_6;
+ __m128i step3_0, step3_1, step3_2, step3_3;
+ __m128i step3_4, step3_5, step3_6, step3_7;
+ __m128i res00, res01, res02, res03, res04, res05, res06, res07;
+ __m128i res08, res09, res10, res11, res12, res13, res14, res15;
+ // Load and pre-condition input.
+ if (0 == pass) {+ in00 = _mm_load_si128((const __m128i *)(in + 0 * stride));
+ in01 = _mm_load_si128((const __m128i *)(in + 1 * stride));
+ in02 = _mm_load_si128((const __m128i *)(in + 2 * stride));
+ in03 = _mm_load_si128((const __m128i *)(in + 3 * stride));
+ in04 = _mm_load_si128((const __m128i *)(in + 4 * stride));
+ in05 = _mm_load_si128((const __m128i *)(in + 5 * stride));
+ in06 = _mm_load_si128((const __m128i *)(in + 6 * stride));
+ in07 = _mm_load_si128((const __m128i *)(in + 7 * stride));
+ in08 = _mm_load_si128((const __m128i *)(in + 8 * stride));
+ in09 = _mm_load_si128((const __m128i *)(in + 9 * stride));
+ in10 = _mm_load_si128((const __m128i *)(in + 10 * stride));
+ in11 = _mm_load_si128((const __m128i *)(in + 11 * stride));
+ in12 = _mm_load_si128((const __m128i *)(in + 12 * stride));
+ in13 = _mm_load_si128((const __m128i *)(in + 13 * stride));
+ in14 = _mm_load_si128((const __m128i *)(in + 14 * stride));
+ in15 = _mm_load_si128((const __m128i *)(in + 15 * stride));
+ // x = x << 2
+ in00 = _mm_slli_epi16(in00, 2);
+ in01 = _mm_slli_epi16(in01, 2);
+ in02 = _mm_slli_epi16(in02, 2);
+ in03 = _mm_slli_epi16(in03, 2);
+ in04 = _mm_slli_epi16(in04, 2);
+ in05 = _mm_slli_epi16(in05, 2);
+ in06 = _mm_slli_epi16(in06, 2);
+ in07 = _mm_slli_epi16(in07, 2);
+ in08 = _mm_slli_epi16(in08, 2);
+ in09 = _mm_slli_epi16(in09, 2);
+ in10 = _mm_slli_epi16(in10, 2);
+ in11 = _mm_slli_epi16(in11, 2);
+ in12 = _mm_slli_epi16(in12, 2);
+ in13 = _mm_slli_epi16(in13, 2);
+ in14 = _mm_slli_epi16(in14, 2);
+ in15 = _mm_slli_epi16(in15, 2);
+ } else {+ in00 = _mm_load_si128((const __m128i *)(in + 0 * 16));
+ in01 = _mm_load_si128((const __m128i *)(in + 1 * 16));
+ in02 = _mm_load_si128((const __m128i *)(in + 2 * 16));
+ in03 = _mm_load_si128((const __m128i *)(in + 3 * 16));
+ in04 = _mm_load_si128((const __m128i *)(in + 4 * 16));
+ in05 = _mm_load_si128((const __m128i *)(in + 5 * 16));
+ in06 = _mm_load_si128((const __m128i *)(in + 6 * 16));
+ in07 = _mm_load_si128((const __m128i *)(in + 7 * 16));
+ in08 = _mm_load_si128((const __m128i *)(in + 8 * 16));
+ in09 = _mm_load_si128((const __m128i *)(in + 9 * 16));
+ in10 = _mm_load_si128((const __m128i *)(in + 10 * 16));
+ in11 = _mm_load_si128((const __m128i *)(in + 11 * 16));
+ in12 = _mm_load_si128((const __m128i *)(in + 12 * 16));
+ in13 = _mm_load_si128((const __m128i *)(in + 13 * 16));
+ in14 = _mm_load_si128((const __m128i *)(in + 14 * 16));
+ in15 = _mm_load_si128((const __m128i *)(in + 15 * 16));
+ // x = (x + 1) >> 2
+ in00 = _mm_add_epi16(in00, kOne);
+ in01 = _mm_add_epi16(in01, kOne);
+ in02 = _mm_add_epi16(in02, kOne);
+ in03 = _mm_add_epi16(in03, kOne);
+ in04 = _mm_add_epi16(in04, kOne);
+ in05 = _mm_add_epi16(in05, kOne);
+ in06 = _mm_add_epi16(in06, kOne);
+ in07 = _mm_add_epi16(in07, kOne);
+ in08 = _mm_add_epi16(in08, kOne);
+ in09 = _mm_add_epi16(in09, kOne);
+ in10 = _mm_add_epi16(in10, kOne);
+ in11 = _mm_add_epi16(in11, kOne);
+ in12 = _mm_add_epi16(in12, kOne);
+ in13 = _mm_add_epi16(in13, kOne);
+ in14 = _mm_add_epi16(in14, kOne);
+ in15 = _mm_add_epi16(in15, kOne);
+ in00 = _mm_srai_epi16(in00, 2);
+ in01 = _mm_srai_epi16(in01, 2);
+ in02 = _mm_srai_epi16(in02, 2);
+ in03 = _mm_srai_epi16(in03, 2);
+ in04 = _mm_srai_epi16(in04, 2);
+ in05 = _mm_srai_epi16(in05, 2);
+ in06 = _mm_srai_epi16(in06, 2);
+ in07 = _mm_srai_epi16(in07, 2);
+ in08 = _mm_srai_epi16(in08, 2);
+ in09 = _mm_srai_epi16(in09, 2);
+ in10 = _mm_srai_epi16(in10, 2);
+ in11 = _mm_srai_epi16(in11, 2);
+ in12 = _mm_srai_epi16(in12, 2);
+ in13 = _mm_srai_epi16(in13, 2);
+ in14 = _mm_srai_epi16(in14, 2);
+ in15 = _mm_srai_epi16(in15, 2);
+ }
+ in += 8;
+ // Calculate input for the first 8 results.
+ {+ input0 = ADD_EPI16(in00, in15);
+ input1 = ADD_EPI16(in01, in14);
+ input2 = ADD_EPI16(in02, in13);
+ input3 = ADD_EPI16(in03, in12);
+ input4 = ADD_EPI16(in04, in11);
+ input5 = ADD_EPI16(in05, in10);
+ input6 = ADD_EPI16(in06, in09);
+ input7 = ADD_EPI16(in07, in08);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&input0, &input1, &input2, &input3,
+ &input4, &input5, &input6, &input7);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // Calculate input for the next 8 results.
+ {+ step1_0 = SUB_EPI16(in07, in08);
+ step1_1 = SUB_EPI16(in06, in09);
+ step1_2 = SUB_EPI16(in05, in10);
+ step1_3 = SUB_EPI16(in04, in11);
+ step1_4 = SUB_EPI16(in03, in12);
+ step1_5 = SUB_EPI16(in02, in13);
+ step1_6 = SUB_EPI16(in01, in14);
+ step1_7 = SUB_EPI16(in00, in15);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1_0, &step1_1,
+ &step1_2, &step1_3,
+ &step1_4, &step1_5,
+ &step1_6, &step1_7);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // Work on the first eight values; fdct8(input, even_results);
+ {+ // Add/subtract
+ const __m128i q0 = ADD_EPI16(input0, input7);
+ const __m128i q1 = ADD_EPI16(input1, input6);
+ const __m128i q2 = ADD_EPI16(input2, input5);
+ const __m128i q3 = ADD_EPI16(input3, input4);
+ const __m128i q4 = SUB_EPI16(input3, input4);
+ const __m128i q5 = SUB_EPI16(input2, input5);
+ const __m128i q6 = SUB_EPI16(input1, input6);
+ const __m128i q7 = SUB_EPI16(input0, input7);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&q0, &q1, &q2, &q3,
+ &q4, &q5, &q6, &q7);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // Work on first four results
+ {+ // Add/subtract
+ const __m128i r0 = ADD_EPI16(q0, q3);
+ const __m128i r1 = ADD_EPI16(q1, q2);
+ const __m128i r2 = SUB_EPI16(q1, q2);
+ const __m128i r3 = SUB_EPI16(q0, q3);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&r0, &r1, &r2, &r3);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // Interleave to do the multiply by constants which gets us
+ // into 32 bits.
+ {+ const __m128i t0 = _mm_unpacklo_epi16(r0, r1);
+ const __m128i t1 = _mm_unpackhi_epi16(r0, r1);
+ const __m128i t2 = _mm_unpacklo_epi16(r2, r3);
+ const __m128i t3 = _mm_unpackhi_epi16(r2, r3);
+ res00 = mult_round_shift(&t0, &t1, &k__cospi_p16_p16,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res08 = mult_round_shift(&t0, &t1, &k__cospi_p16_m16,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res04 = mult_round_shift(&t2, &t3, &k__cospi_p24_p08,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res12 = mult_round_shift(&t2, &t3, &k__cospi_m08_p24,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&res00, &res08, &res04, &res12);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+ // Work on next four results
+ {+ // Interleave to do the multiply by constants which gets us
+ // into 32 bits.
+ const __m128i d0 = _mm_unpacklo_epi16(q6, q5);
+ const __m128i d1 = _mm_unpackhi_epi16(q6, q5);
+ const __m128i r0 = mult_round_shift(&d0, &d1, &k__cospi_p16_m16,
+ &k__DCT_CONST_ROUNDING,
+ DCT_CONST_BITS);
+ const __m128i r1 = mult_round_shift(&d0, &d1, &k__cospi_p16_p16,
+ &k__DCT_CONST_ROUNDING,
+ DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x2(&r0, &r1);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ {+ // Add/subtract
+ const __m128i x0 = ADD_EPI16(q4, r0);
+ const __m128i x1 = SUB_EPI16(q4, r0);
+ const __m128i x2 = SUB_EPI16(q7, r1);
+ const __m128i x3 = ADD_EPI16(q7, r1);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&x0, &x1, &x2, &x3);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ // Interleave to do the multiply by constants which gets us
+ // into 32 bits.
+ {+ const __m128i t0 = _mm_unpacklo_epi16(x0, x3);
+ const __m128i t1 = _mm_unpackhi_epi16(x0, x3);
+ const __m128i t2 = _mm_unpacklo_epi16(x1, x2);
+ const __m128i t3 = _mm_unpackhi_epi16(x1, x2);
+ res02 = mult_round_shift(&t0, &t1, &k__cospi_p28_p04,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res14 = mult_round_shift(&t0, &t1, &k__cospi_m04_p28,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res10 = mult_round_shift(&t2, &t3, &k__cospi_p12_p20,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res06 = mult_round_shift(&t2, &t3, &k__cospi_m20_p12,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&res02, &res14,
+ &res10, &res06);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+ }
+ }
+ // Work on the next eight values; step1 -> odd_results
+ {+ // step 2
+ {+ const __m128i t0 = _mm_unpacklo_epi16(step1_5, step1_2);
+ const __m128i t1 = _mm_unpackhi_epi16(step1_5, step1_2);
+ const __m128i t2 = _mm_unpacklo_epi16(step1_4, step1_3);
+ const __m128i t3 = _mm_unpackhi_epi16(step1_4, step1_3);
+ step2_2 = mult_round_shift(&t0, &t1, &k__cospi_p16_m16,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ step2_3 = mult_round_shift(&t2, &t3, &k__cospi_p16_m16,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ step2_5 = mult_round_shift(&t0, &t1, &k__cospi_p16_p16,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ step2_4 = mult_round_shift(&t2, &t3, &k__cospi_p16_p16,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&step2_2, &step2_3, &step2_5,
+ &step2_4);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // step 3
+ {+ step3_0 = ADD_EPI16(step1_0, step2_3);
+ step3_1 = ADD_EPI16(step1_1, step2_2);
+ step3_2 = SUB_EPI16(step1_1, step2_2);
+ step3_3 = SUB_EPI16(step1_0, step2_3);
+ step3_4 = SUB_EPI16(step1_7, step2_4);
+ step3_5 = SUB_EPI16(step1_6, step2_5);
+ step3_6 = ADD_EPI16(step1_6, step2_5);
+ step3_7 = ADD_EPI16(step1_7, step2_4);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step3_0, &step3_1,
+ &step3_2, &step3_3,
+ &step3_4, &step3_5,
+ &step3_6, &step3_7);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // step 4
+ {+ const __m128i t0 = _mm_unpacklo_epi16(step3_1, step3_6);
+ const __m128i t1 = _mm_unpackhi_epi16(step3_1, step3_6);
+ const __m128i t2 = _mm_unpacklo_epi16(step3_2, step3_5);
+ const __m128i t3 = _mm_unpackhi_epi16(step3_2, step3_5);
+ step2_1 = mult_round_shift(&t0, &t1, &k__cospi_m08_p24,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ step2_2 = mult_round_shift(&t2, &t3, &k__cospi_p24_p08,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ step2_6 = mult_round_shift(&t0, &t1, &k__cospi_p24_p08,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ step2_5 = mult_round_shift(&t2, &t3, &k__cospi_p08_m24,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&step2_1, &step2_2, &step2_6,
+ &step2_5);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // step 5
+ {+ step1_0 = ADD_EPI16(step3_0, step2_1);
+ step1_1 = SUB_EPI16(step3_0, step2_1);
+ step1_2 = ADD_EPI16(step3_3, step2_2);
+ step1_3 = SUB_EPI16(step3_3, step2_2);
+ step1_4 = SUB_EPI16(step3_4, step2_5);
+ step1_5 = ADD_EPI16(step3_4, step2_5);
+ step1_6 = SUB_EPI16(step3_7, step2_6);
+ step1_7 = ADD_EPI16(step3_7, step2_6);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x8(&step1_0, &step1_1,
+ &step1_2, &step1_3,
+ &step1_4, &step1_5,
+ &step1_6, &step1_7);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ // step 6
+ {+ const __m128i t0 = _mm_unpacklo_epi16(step1_0, step1_7);
+ const __m128i t1 = _mm_unpackhi_epi16(step1_0, step1_7);
+ const __m128i t2 = _mm_unpacklo_epi16(step1_1, step1_6);
+ const __m128i t3 = _mm_unpackhi_epi16(step1_1, step1_6);
+ res01 = mult_round_shift(&t0, &t1, &k__cospi_p30_p02,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res09 = mult_round_shift(&t2, &t3, &k__cospi_p14_p18,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res15 = mult_round_shift(&t0, &t1, &k__cospi_m02_p30,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res07 = mult_round_shift(&t2, &t3, &k__cospi_m18_p14,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&res01, &res09, &res15, &res07);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ {+ const __m128i t0 = _mm_unpacklo_epi16(step1_2, step1_5);
+ const __m128i t1 = _mm_unpackhi_epi16(step1_2, step1_5);
+ const __m128i t2 = _mm_unpacklo_epi16(step1_3, step1_4);
+ const __m128i t3 = _mm_unpackhi_epi16(step1_3, step1_4);
+ res05 = mult_round_shift(&t0, &t1, &k__cospi_p22_p10,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res13 = mult_round_shift(&t2, &t3, &k__cospi_p06_p26,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res11 = mult_round_shift(&t0, &t1, &k__cospi_m10_p22,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+ res03 = mult_round_shift(&t2, &t3, &k__cospi_m26_p06,
+ &k__DCT_CONST_ROUNDING, DCT_CONST_BITS);
+#if DCT_HIGH_BIT_DEPTH
+ overflow = check_epi16_overflow_x4(&res05, &res13, &res11, &res03);
+ if (overflow) {+ vpx_highbd_fdct16x16_c(input, output, stride);
+ return;
+ }
+#endif // DCT_HIGH_BIT_DEPTH
+ }
+ }
+ // Transpose the results, do it as two 8x8 transposes.
+ transpose_and_output8x8(&res00, &res01, &res02, &res03,
+ &res04, &res05, &res06, &res07,
+ pass, out0, out1);
+ transpose_and_output8x8(&res08, &res09, &res10, &res11,
+ &res12, &res13, &res14, &res15,
+ pass, out0 + 8, out1 + 8);
+ if (pass == 0) {+ out0 += 8*16;
+ } else {+ out1 += 8*16;
+ }
+ }
+ // Setup in/out for next pass.
+ in = intermediate;
+ }
+}
+
+#undef ADD_EPI16
+#undef SUB_EPI16
--- /dev/null
+++ b/vp10/common/x86/vp10_fwd_txfm_sse2.c
@@ -1,0 +1,271 @@
+/*
+ * Copyright (c) 2015 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <emmintrin.h> // SSE2
+
+#include "./vpx_config.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+#include "vpx_dsp/x86/fwd_txfm_sse2.h"
+
+void vp10_fdct4x4_1_sse2(const int16_t *input, tran_low_t *output, int stride) {+ __m128i in0, in1;
+ __m128i tmp;
+ const __m128i zero = _mm_setzero_si128();
+ in0 = _mm_loadl_epi64((const __m128i *)(input + 0 * stride));
+ in1 = _mm_loadl_epi64((const __m128i *)(input + 1 * stride));
+ in1 = _mm_unpacklo_epi64(in1, _mm_loadl_epi64((const __m128i *)
+ (input + 2 * stride)));
+ in0 = _mm_unpacklo_epi64(in0, _mm_loadl_epi64((const __m128i *)
+ (input + 3 * stride)));
+
+ tmp = _mm_add_epi16(in0, in1);
+ in0 = _mm_unpacklo_epi16(zero, tmp);
+ in1 = _mm_unpackhi_epi16(zero, tmp);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ tmp = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(tmp, zero);
+ in1 = _mm_unpackhi_epi32(tmp, zero);
+
+ tmp = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(tmp, 8);
+
+ in1 = _mm_add_epi32(tmp, in0);
+ in0 = _mm_slli_epi32(in1, 1);
+ store_output(&in0, output);
+}
+
+void vp10_fdct8x8_1_sse2(const int16_t *input, tran_low_t *output, int stride) {+ __m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
+ __m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
+ __m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
+ __m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
+ __m128i u0, u1, sum;
+
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 4 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 5 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 6 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 7 * stride));
+
+ sum = _mm_add_epi16(u0, u1);
+
+ in0 = _mm_add_epi16(in0, in1);
+ in2 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, in0);
+
+ u0 = _mm_setzero_si128();
+ sum = _mm_add_epi16(sum, in2);
+
+ in0 = _mm_unpacklo_epi16(u0, sum);
+ in1 = _mm_unpackhi_epi16(u0, sum);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(sum, u0);
+ in1 = _mm_unpackhi_epi32(sum, u0);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(sum, 8);
+
+ in1 = _mm_add_epi32(sum, in0);
+ store_output(&in1, output);
+}
+
+void vp10_fdct16x16_1_sse2(const int16_t *input, tran_low_t *output,
+ int stride) {+ __m128i in0, in1, in2, in3;
+ __m128i u0, u1;
+ __m128i sum = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 2; ++i) {+ input += 8 * i;
+ in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
+
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 4 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 5 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 6 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 7 * stride));
+
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 8 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 9 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 10 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 11 * stride));
+
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 12 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 13 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 14 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 15 * stride));
+
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ sum = _mm_add_epi16(sum, u1);
+ }
+
+ u0 = _mm_setzero_si128();
+ in0 = _mm_unpacklo_epi16(u0, sum);
+ in1 = _mm_unpackhi_epi16(u0, sum);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(sum, u0);
+ in1 = _mm_unpackhi_epi32(sum, u0);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(sum, 8);
+
+ in1 = _mm_add_epi32(sum, in0);
+ in1 = _mm_srai_epi32(in1, 1);
+ store_output(&in1, output);
+}
+
+void vp10_fdct32x32_1_sse2(const int16_t *input, tran_low_t *output,
+ int stride) {+ __m128i in0, in1, in2, in3;
+ __m128i u0, u1;
+ __m128i sum = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 8; ++i) {+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ sum = _mm_add_epi16(sum, u1);
+ }
+
+ u0 = _mm_setzero_si128();
+ in0 = _mm_unpacklo_epi16(u0, sum);
+ in1 = _mm_unpackhi_epi16(u0, sum);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(sum, u0);
+ in1 = _mm_unpackhi_epi32(sum, u0);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(sum, 8);
+
+ in1 = _mm_add_epi32(sum, in0);
+ in1 = _mm_srai_epi32(in1, 3);
+ store_output(&in1, output);
+}
+
+#define DCT_HIGH_BIT_DEPTH 0
+#define FDCT4x4_2D vp10_fdct4x4_sse2
+#define FDCT8x8_2D vp10_fdct8x8_sse2
+#define FDCT16x16_2D vp10_fdct16x16_sse2
+#include "vp10/common/x86/vp10_fwd_txfm_impl_sse2.h"
+#undef FDCT4x4_2D
+#undef FDCT8x8_2D
+#undef FDCT16x16_2D
+
+#define FDCT32x32_2D vp10_fdct32x32_rd_sse2
+#define FDCT32x32_HIGH_PRECISION 0
+#include "vp10/common/x86/vp10_fwd_dct32x32_impl_sse2.h"
+#undef FDCT32x32_2D
+#undef FDCT32x32_HIGH_PRECISION
+
+#define FDCT32x32_2D vp10_fdct32x32_sse2
+#define FDCT32x32_HIGH_PRECISION 1
+#include "vp10/common/x86/vp10_fwd_dct32x32_impl_sse2.h" // NOLINT
+#undef FDCT32x32_2D
+#undef FDCT32x32_HIGH_PRECISION
+#undef DCT_HIGH_BIT_DEPTH
+
+#if CONFIG_VP9_HIGHBITDEPTH
+#define DCT_HIGH_BIT_DEPTH 1
+#define FDCT4x4_2D vp10_highbd_fdct4x4_sse2
+#define FDCT8x8_2D vp10_highbd_fdct8x8_sse2
+#define FDCT16x16_2D vp10_highbd_fdct16x16_sse2
+#include "vp10/common/x86/vp10_fwd_txfm_impl_sse2.h" // NOLINT
+#undef FDCT4x4_2D
+#undef FDCT8x8_2D
+#undef FDCT16x16_2D
+
+#define FDCT32x32_2D vp10_highbd_fdct32x32_rd_sse2
+#define FDCT32x32_HIGH_PRECISION 0
+#include "vp10/common/x86/vp10_fwd_dct32x32_impl_sse2.h" // NOLINT
+#undef FDCT32x32_2D
+#undef FDCT32x32_HIGH_PRECISION
+
+#define FDCT32x32_2D vp10_highbd_fdct32x32_sse2
+#define FDCT32x32_HIGH_PRECISION 1
+#include "vp10/common/x86/vp10_fwd_dct32x32_impl_sse2.h" // NOLINT
+#undef FDCT32x32_2D
+#undef FDCT32x32_HIGH_PRECISION
+#undef DCT_HIGH_BIT_DEPTH
+#endif // CONFIG_VP9_HIGHBITDEPTH
--- a/vp10/vp10_common.mk
+++ b/vp10/vp10_common.mk
@@ -61,6 +61,8 @@
VP10_COMMON_SRCS-yes += common/common_data.h
VP10_COMMON_SRCS-yes += common/scan.c
VP10_COMMON_SRCS-yes += common/scan.h
+VP10_COMMON_SRCS-yes += common/vp10_fwd_txfm.h
+VP10_COMMON_SRCS-yes += common/vp10_fwd_txfm.c
VP10_COMMON_SRCS-$(CONFIG_VP9_POSTPROC) += common/postproc.h
VP10_COMMON_SRCS-$(CONFIG_VP9_POSTPROC) += common/postproc.c
@@ -87,6 +89,9 @@
endif
VP10_COMMON_SRCS-$(HAVE_SSE2) += common/x86/idct_intrin_sse2.c
+VP10_COMMON_SRCS-$(HAVE_SSE2) += common/x86/vp10_fwd_txfm_sse2.c
+VP10_COMMON_SRCS-$(HAVE_SSE2) += common/x86/vp10_fwd_dct32x32_impl_sse2.h
+VP10_COMMON_SRCS-$(HAVE_SSE2) += common/x86/vp10_fwd_txfm_impl_sse2.h
ifneq ($(CONFIG_VP9_HIGHBITDEPTH),yes)
VP10_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/iht4x4_add_neon.c