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-rw-r--r--media/libvpx/vp9/encoder/x86/vp9_dct_ssse3.c471
1 files changed, 471 insertions, 0 deletions
diff --git a/media/libvpx/vp9/encoder/x86/vp9_dct_ssse3.c b/media/libvpx/vp9/encoder/x86/vp9_dct_ssse3.c
new file mode 100644
index 000000000..96038fee1
--- /dev/null
+++ b/media/libvpx/vp9/encoder/x86/vp9_dct_ssse3.c
@@ -0,0 +1,471 @@
+/*
+ * 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 <assert.h>
+#if defined(_MSC_VER) && _MSC_VER <= 1500
+// Need to include math.h before calling tmmintrin.h/intrin.h
+// in certain versions of MSVS.
+#include <math.h>
+#endif
+#include <tmmintrin.h> // SSSE3
+
+#include "./vp9_rtcd.h"
+#include "vp9/common/x86/vp9_idct_intrin_sse2.h"
+
+void vp9_fdct8x8_quant_ssse3(const int16_t *input, int stride,
+ int16_t* coeff_ptr, intptr_t n_coeffs,
+ int skip_block, const int16_t* zbin_ptr,
+ const int16_t* round_ptr, const int16_t* quant_ptr,
+ const int16_t* quant_shift_ptr,
+ int16_t* qcoeff_ptr,
+ int16_t* dqcoeff_ptr, const int16_t* dequant_ptr,
+ uint16_t* eob_ptr,
+ const int16_t* scan_ptr,
+ const int16_t* iscan_ptr) {
+ __m128i zero;
+ 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__dual_p16_p16 = dual_set_epi16(23170, 23170);
+ 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);
+ // 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));
+ __m128i *in[8];
+ int index = 0;
+
+ (void)scan_ptr;
+ (void)zbin_ptr;
+ (void)quant_shift_ptr;
+ (void)coeff_ptr;
+
+ // 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);
+
+ in[0] = &in0;
+ in[1] = &in1;
+ in[2] = &in2;
+ in[3] = &in3;
+ in[4] = &in4;
+ in[5] = &in5;
+ in[6] = &in6;
+ in[7] = &in7;
+
+ // 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 = _mm_add_epi16(in0, in7);
+ const __m128i q1 = _mm_add_epi16(in1, in6);
+ const __m128i q2 = _mm_add_epi16(in2, in5);
+ const __m128i q3 = _mm_add_epi16(in3, in4);
+ const __m128i q4 = _mm_sub_epi16(in3, in4);
+ const __m128i q5 = _mm_sub_epi16(in2, in5);
+ const __m128i q6 = _mm_sub_epi16(in1, in6);
+ const __m128i q7 = _mm_sub_epi16(in0, in7);
+ // Work on first four results
+ {
+ // Add/subtract
+ const __m128i r0 = _mm_add_epi16(q0, q3);
+ const __m128i r1 = _mm_add_epi16(q1, q2);
+ const __m128i r2 = _mm_sub_epi16(q1, q2);
+ const __m128i r3 = _mm_sub_epi16(q0, q3);
+ // 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);
+ }
+ // Work on next four results
+ {
+ // Interleave to do the multiply by constants which gets us into 32bits
+ const __m128i d0 = _mm_sub_epi16(q6, q5);
+ const __m128i d1 = _mm_add_epi16(q6, q5);
+ const __m128i r0 = _mm_mulhrs_epi16(d0, k__dual_p16_p16);
+ const __m128i r1 = _mm_mulhrs_epi16(d1, k__dual_p16_p16);
+
+ // Add/subtract
+ const __m128i x0 = _mm_add_epi16(q4, r0);
+ const __m128i x1 = _mm_sub_epi16(q4, r0);
+ const __m128i x2 = _mm_sub_epi16(q7, r1);
+ const __m128i x3 = _mm_add_epi16(q7, r1);
+ // 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);
+ }
+ // 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);
+ }
+
+ iscan_ptr += n_coeffs;
+ qcoeff_ptr += n_coeffs;
+ dqcoeff_ptr += n_coeffs;
+ n_coeffs = -n_coeffs;
+ zero = _mm_setzero_si128();
+
+ if (!skip_block) {
+ __m128i eob;
+ __m128i round, quant, dequant, thr;
+ int16_t nzflag;
+ {
+ __m128i coeff0, coeff1;
+
+ // Setup global values
+ {
+ round = _mm_load_si128((const __m128i*)round_ptr);
+ quant = _mm_load_si128((const __m128i*)quant_ptr);
+ dequant = _mm_load_si128((const __m128i*)dequant_ptr);
+ }
+
+ {
+ __m128i coeff0_sign, coeff1_sign;
+ __m128i qcoeff0, qcoeff1;
+ __m128i qtmp0, qtmp1;
+ // Do DC and first 15 AC
+ coeff0 = *in[0];
+ coeff1 = *in[1];
+
+ // Poor man's sign extract
+ coeff0_sign = _mm_srai_epi16(coeff0, 15);
+ coeff1_sign = _mm_srai_epi16(coeff1, 15);
+ qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
+ qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
+ qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
+ qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
+
+ qcoeff0 = _mm_adds_epi16(qcoeff0, round);
+ round = _mm_unpackhi_epi64(round, round);
+ qcoeff1 = _mm_adds_epi16(qcoeff1, round);
+ qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
+ quant = _mm_unpackhi_epi64(quant, quant);
+ qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
+
+ // Reinsert signs
+ qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
+ qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign);
+ qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
+ qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
+
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0);
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1);
+
+ coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
+ dequant = _mm_unpackhi_epi64(dequant, dequant);
+ coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
+
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0);
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1);
+ }
+
+ {
+ // Scan for eob
+ __m128i zero_coeff0, zero_coeff1;
+ __m128i nzero_coeff0, nzero_coeff1;
+ __m128i iscan0, iscan1;
+ __m128i eob1;
+ zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
+ zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
+ nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
+ nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
+ iscan0 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs));
+ iscan1 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs) + 1);
+ // Add one to convert from indices to counts
+ iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
+ iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
+ eob = _mm_and_si128(iscan0, nzero_coeff0);
+ eob1 = _mm_and_si128(iscan1, nzero_coeff1);
+ eob = _mm_max_epi16(eob, eob1);
+ }
+ n_coeffs += 8 * 2;
+ }
+
+ // AC only loop
+ index = 2;
+ thr = _mm_srai_epi16(dequant, 1);
+ while (n_coeffs < 0) {
+ __m128i coeff0, coeff1;
+ {
+ __m128i coeff0_sign, coeff1_sign;
+ __m128i qcoeff0, qcoeff1;
+ __m128i qtmp0, qtmp1;
+
+ assert(index < (int)(sizeof(in) / sizeof(in[0])) - 1);
+ coeff0 = *in[index];
+ coeff1 = *in[index + 1];
+
+ // Poor man's sign extract
+ coeff0_sign = _mm_srai_epi16(coeff0, 15);
+ coeff1_sign = _mm_srai_epi16(coeff1, 15);
+ qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
+ qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
+ qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
+ qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
+
+ nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) |
+ _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr));
+
+ if (nzflag) {
+ qcoeff0 = _mm_adds_epi16(qcoeff0, round);
+ qcoeff1 = _mm_adds_epi16(qcoeff1, round);
+ qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
+ qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
+
+ // Reinsert signs
+ qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
+ qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign);
+ qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
+ qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
+
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0);
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1);
+
+ coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
+ coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
+
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0);
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1);
+ } else {
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero);
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero);
+
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero);
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero);
+ }
+ }
+
+ if (nzflag) {
+ // Scan for eob
+ __m128i zero_coeff0, zero_coeff1;
+ __m128i nzero_coeff0, nzero_coeff1;
+ __m128i iscan0, iscan1;
+ __m128i eob0, eob1;
+ zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
+ zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
+ nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
+ nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
+ iscan0 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs));
+ iscan1 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs) + 1);
+ // Add one to convert from indices to counts
+ iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
+ iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
+ eob0 = _mm_and_si128(iscan0, nzero_coeff0);
+ eob1 = _mm_and_si128(iscan1, nzero_coeff1);
+ eob0 = _mm_max_epi16(eob0, eob1);
+ eob = _mm_max_epi16(eob, eob0);
+ }
+ n_coeffs += 8 * 2;
+ index += 2;
+ }
+
+ // Accumulate EOB
+ {
+ __m128i eob_shuffled;
+ eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
+ eob = _mm_max_epi16(eob, eob_shuffled);
+ eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
+ eob = _mm_max_epi16(eob, eob_shuffled);
+ eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
+ eob = _mm_max_epi16(eob, eob_shuffled);
+ *eob_ptr = _mm_extract_epi16(eob, 1);
+ }
+ } else {
+ do {
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero);
+ _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero);
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero);
+ _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero);
+ n_coeffs += 8 * 2;
+ } while (n_coeffs < 0);
+ *eob_ptr = 0;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-27 01:53:48 +0000