]> granicus.if.org Git - libvpx/commitdiff
Add vpx_highbd_idct4x4_16_add_sse4_1()
authorLinfeng Zhang <linfengz@google.com>
Fri, 23 Jun 2017 21:27:18 +0000 (14:27 -0700)
committerLinfeng Zhang <linfengz@google.com>
Fri, 23 Jun 2017 21:30:12 +0000 (14:30 -0700)
BUG=webm:1412

Change-Id: Ie33482409351a01be4e89466b0441834eb1e905a

test/partial_idct_test.cc
vpx_dsp/vpx_dsp.mk
vpx_dsp/vpx_dsp_rtcd_defs.pl
vpx_dsp/x86/highbd_idct4x4_add_sse2.c
vpx_dsp/x86/highbd_idct4x4_add_sse4.c [new file with mode: 0644]
vpx_dsp/x86/highbd_inv_txfm_sse2.h

index eb55f0ae83bdce40f83e763eb0ee7149b1e126aa..30df75f97a5a72d434ff15ab3f4366fc95d03500 100644 (file)
@@ -477,7 +477,9 @@ const PartialInvTxfmParam c_partial_idct_tests[] = {
 INSTANTIATE_TEST_CASE_P(C, PartialIDctTest,
                         ::testing::ValuesIn(c_partial_idct_tests));
 
-#if HAVE_NEON && !CONFIG_EMULATE_HARDWARE
+#if !CONFIG_EMULATE_HARDWARE
+
+#if HAVE_NEON
 const PartialInvTxfmParam neon_partial_idct_tests[] = {
 #if CONFIG_VP9_HIGHBITDEPTH
   make_tuple(&vpx_highbd_fdct32x32_c,
@@ -625,9 +627,9 @@ const PartialInvTxfmParam neon_partial_idct_tests[] = {
 
 INSTANTIATE_TEST_CASE_P(NEON, PartialIDctTest,
                         ::testing::ValuesIn(neon_partial_idct_tests));
-#endif  // HAVE_NEON && !CONFIG_EMULATE_HARDWARE
+#endif  // HAVE_NEON
 
-#if HAVE_SSE2 && !CONFIG_EMULATE_HARDWARE
+#if HAVE_SSE2
 // 32x32_135_ is implemented using the 1024 version.
 const PartialInvTxfmParam sse2_partial_idct_tests[] = {
 #if CONFIG_VP9_HIGHBITDEPTH
@@ -734,9 +736,9 @@ const PartialInvTxfmParam sse2_partial_idct_tests[] = {
 INSTANTIATE_TEST_CASE_P(SSE2, PartialIDctTest,
                         ::testing::ValuesIn(sse2_partial_idct_tests));
 
-#endif  // HAVE_SSE2 && !CONFIG_EMULATE_HARDWARE
+#endif  // HAVE_SSE2
 
-#if HAVE_SSSE3 && !CONFIG_EMULATE_HARDWARE
+#if HAVE_SSSE3
 const PartialInvTxfmParam ssse3_partial_idct_tests[] = {
   make_tuple(&vpx_fdct32x32_c, &wrapper<vpx_idct32x32_135_add_c>,
              &wrapper<vpx_idct32x32_135_add_ssse3>, TX_32X32, 135, 8, 1),
@@ -748,9 +750,26 @@ const PartialInvTxfmParam ssse3_partial_idct_tests[] = {
 
 INSTANTIATE_TEST_CASE_P(SSSE3, PartialIDctTest,
                         ::testing::ValuesIn(ssse3_partial_idct_tests));
-#endif  // HAVE_SSSE3 && ARCH_X86_64 && !CONFIG_EMULATE_HARDWARE
+#endif  // HAVE_SSSE3
 
-#if HAVE_DSPR2 && !CONFIG_EMULATE_HARDWARE && !CONFIG_VP9_HIGHBITDEPTH
+#if HAVE_SSE4_1 && CONFIG_VP9_HIGHBITDEPTH
+const PartialInvTxfmParam sse4_1_partial_idct_tests[] = {
+  make_tuple(
+      &vpx_highbd_fdct4x4_c, &highbd_wrapper<vpx_highbd_idct4x4_16_add_c>,
+      &highbd_wrapper<vpx_highbd_idct4x4_16_add_sse4_1>, TX_4X4, 16, 8, 2),
+  make_tuple(
+      &vpx_highbd_fdct4x4_c, &highbd_wrapper<vpx_highbd_idct4x4_16_add_c>,
+      &highbd_wrapper<vpx_highbd_idct4x4_16_add_sse4_1>, TX_4X4, 16, 10, 2),
+  make_tuple(
+      &vpx_highbd_fdct4x4_c, &highbd_wrapper<vpx_highbd_idct4x4_16_add_c>,
+      &highbd_wrapper<vpx_highbd_idct4x4_16_add_sse4_1>, TX_4X4, 16, 12, 2)
+};
+
+INSTANTIATE_TEST_CASE_P(SSE4_1, PartialIDctTest,
+                        ::testing::ValuesIn(sse4_1_partial_idct_tests));
+#endif  // HAVE_SSE4_1 && CONFIG_VP9_HIGHBITDEPTH
+
+#if HAVE_DSPR2 && !CONFIG_VP9_HIGHBITDEPTH
 const PartialInvTxfmParam dspr2_partial_idct_tests[] = {
   make_tuple(&vpx_fdct32x32_c, &wrapper<vpx_idct32x32_1024_add_c>,
              &wrapper<vpx_idct32x32_1024_add_dspr2>, TX_32X32, 1024, 8, 1),
@@ -778,9 +797,9 @@ const PartialInvTxfmParam dspr2_partial_idct_tests[] = {
 
 INSTANTIATE_TEST_CASE_P(DSPR2, PartialIDctTest,
                         ::testing::ValuesIn(dspr2_partial_idct_tests));
-#endif  // HAVE_DSPR2 && !CONFIG_EMULATE_HARDWARE && !CONFIG_VP9_HIGHBITDEPTH
+#endif  // HAVE_DSPR2 && !CONFIG_VP9_HIGHBITDEPTH
 
-#if HAVE_MSA && !CONFIG_EMULATE_HARDWARE && !CONFIG_VP9_HIGHBITDEPTH
+#if HAVE_MSA && !CONFIG_VP9_HIGHBITDEPTH
 // 32x32_135_ is implemented using the 1024 version.
 const PartialInvTxfmParam msa_partial_idct_tests[] = {
   make_tuple(&vpx_fdct32x32_c, &wrapper<vpx_idct32x32_1024_add_c>,
@@ -809,6 +828,8 @@ const PartialInvTxfmParam msa_partial_idct_tests[] = {
 
 INSTANTIATE_TEST_CASE_P(MSA, PartialIDctTest,
                         ::testing::ValuesIn(msa_partial_idct_tests));
-#endif  // HAVE_MSA && !CONFIG_EMULATE_HARDWARE && !CONFIG_VP9_HIGHBITDEPTH
+#endif  // HAVE_MSA && !CONFIG_VP9_HIGHBITDEPTH
+
+#endif  // !CONFIG_EMULATE_HARDWARE
 
 }  // namespace
index a02227f824beb8681c1a1dc60563992f76c175cc..8c5eb1042ec53ee1f637c9834c40439ec4a8a632 100644 (file)
@@ -239,6 +239,7 @@ DSP_SRCS-$(HAVE_SSE2)  += x86/highbd_idct4x4_add_sse2.c
 DSP_SRCS-$(HAVE_SSE2)  += x86/highbd_idct8x8_add_sse2.c
 DSP_SRCS-$(HAVE_SSE2)  += x86/highbd_idct16x16_add_sse2.c
 DSP_SRCS-$(HAVE_SSE2)  += x86/highbd_idct32x32_add_sse2.c
+DSP_SRCS-$(HAVE_SSE4_1) += x86/highbd_idct4x4_add_sse4.c
 endif  # !CONFIG_VP9_HIGHBITDEPTH
 
 ifeq ($(HAVE_NEON_ASM),yes)
index 756f7a58f47bbe9f99409af4ad8e4f6d743f60d6..51aa9f637ffe7d2547e90b82f3eaaf5ad52beebe 100644 (file)
@@ -652,7 +652,7 @@ if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
   add_proto qw/void vpx_highbd_iwht4x4_1_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
 
   if (vpx_config("CONFIG_EMULATE_HARDWARE") ne "yes") {
-    specialize qw/vpx_highbd_idct4x4_16_add neon sse2/;
+    specialize qw/vpx_highbd_idct4x4_16_add neon sse2 sse4_1/;
     specialize qw/vpx_highbd_idct8x8_64_add neon sse2/;
     specialize qw/vpx_highbd_idct8x8_12_add neon sse2/;
     specialize qw/vpx_highbd_idct16x16_256_add neon sse2/;
index 5293f5694f65a6c1f114e68cf1177b2fa5b3056b..ac6f73d831b81ae659e764db791477ba866a7f46 100644 (file)
@@ -12,7 +12,6 @@
 #include "vpx_dsp/x86/highbd_inv_txfm_sse2.h"
 #include "vpx_dsp/x86/inv_txfm_sse2.h"
 #include "vpx_dsp/x86/transpose_sse2.h"
-#include "vpx_dsp/x86/txfm_common_sse2.h"
 
 static INLINE __m128i dct_const_round_shift_4_sse2(const __m128i in0,
                                                    const __m128i in1) {
@@ -22,16 +21,6 @@ static INLINE __m128i dct_const_round_shift_4_sse2(const __m128i in0,
   return dct_const_round_shift_sse2(t2);
 }
 
-static INLINE __m128i wraplow_16bit_sse2(const __m128i in0, const __m128i in1,
-                                         const __m128i rounding) {
-  __m128i temp[2];
-  temp[0] = _mm_add_epi32(in0, rounding);
-  temp[1] = _mm_add_epi32(in1, rounding);
-  temp[0] = _mm_srai_epi32(temp[0], 4);
-  temp[1] = _mm_srai_epi32(temp[1], 4);
-  return _mm_packs_epi32(temp[0], temp[1]);
-}
-
 static INLINE void highbd_idct4_small_sse2(__m128i *const io) {
   const __m128i cospi_p16_p16 = _mm_setr_epi32(cospi_16_64, 0, cospi_16_64, 0);
   const __m128i cospi_p08_p08 = _mm_setr_epi32(cospi_8_64, 0, cospi_8_64, 0);
@@ -100,19 +89,6 @@ static INLINE __m128i multiply_apply_sign_sse2(const __m128i in,
   return _mm_sub_epi64(out, sign);
 }
 
-static INLINE __m128i dct_const_round_shift_64bit_sse2(const __m128i in) {
-  const __m128i t = _mm_add_epi64(
-      in,
-      _mm_setr_epi32(DCT_CONST_ROUNDING << 2, 0, DCT_CONST_ROUNDING << 2, 0));
-  return _mm_srli_si128(t, 2);
-}
-
-static INLINE __m128i pack_4_sse2(const __m128i in0, const __m128i in1) {
-  const __m128i t0 = _mm_unpacklo_epi32(in0, in1);  // 0, 2
-  const __m128i t1 = _mm_unpackhi_epi32(in0, in1);  // 1, 3
-  return _mm_unpacklo_epi32(t0, t1);                // 0, 1, 2, 3
-}
-
 static INLINE void highbd_idct4_large_sse2(__m128i *const io) {
   const __m128i cospi_p16_p16 =
       _mm_setr_epi32(cospi_16_64 << 2, 0, cospi_16_64 << 2, 0);
@@ -133,12 +109,12 @@ static INLINE void highbd_idct4_large_sse2(__m128i *const io) {
   temp1[1] = multiply_apply_sign_sse2(temp1[1], sign1[1], cospi_p16_p16);
   temp2[0] = multiply_apply_sign_sse2(temp2[0], sign2[0], cospi_p16_p16);
   temp2[1] = multiply_apply_sign_sse2(temp2[1], sign2[1], cospi_p16_p16);
-  temp1[0] = dct_const_round_shift_64bit_sse2(temp1[0]);
-  temp1[1] = dct_const_round_shift_64bit_sse2(temp1[1]);
-  temp2[0] = dct_const_round_shift_64bit_sse2(temp2[0]);
-  temp2[1] = dct_const_round_shift_64bit_sse2(temp2[1]);
-  step[0] = pack_4_sse2(temp1[0], temp1[1]);
-  step[1] = pack_4_sse2(temp2[0], temp2[1]);
+  temp1[0] = dct_const_round_shift_64bit(temp1[0]);
+  temp1[1] = dct_const_round_shift_64bit(temp1[1]);
+  temp2[0] = dct_const_round_shift_64bit(temp2[0]);
+  temp2[1] = dct_const_round_shift_64bit(temp2[1]);
+  step[0] = pack_4(temp1[0], temp1[1]);
+  step[1] = pack_4(temp2[0], temp2[1]);
 
   abs_extend_64bit_sse2(io[1], temp1, sign1);
   abs_extend_64bit_sse2(io[3], temp2, sign2);
@@ -154,12 +130,12 @@ static INLINE void highbd_idct4_large_sse2(__m128i *const io) {
   temp1[1] = _mm_sub_epi64(temp1[1], temp2[1]);  // [1]*cospi_24 - [3]*cospi_8
   temp2[0] = _mm_add_epi64(temp1[2], temp2[2]);  // [1]*cospi_8 + [3]*cospi_24
   temp2[1] = _mm_add_epi64(temp1[3], temp2[3]);  // [1]*cospi_8 + [3]*cospi_24
-  temp1[0] = dct_const_round_shift_64bit_sse2(temp1[0]);
-  temp1[1] = dct_const_round_shift_64bit_sse2(temp1[1]);
-  temp2[0] = dct_const_round_shift_64bit_sse2(temp2[0]);
-  temp2[1] = dct_const_round_shift_64bit_sse2(temp2[1]);
-  step[2] = pack_4_sse2(temp1[0], temp1[1]);
-  step[3] = pack_4_sse2(temp2[0], temp2[1]);
+  temp1[0] = dct_const_round_shift_64bit(temp1[0]);
+  temp1[1] = dct_const_round_shift_64bit(temp1[1]);
+  temp2[0] = dct_const_round_shift_64bit(temp2[0]);
+  temp2[1] = dct_const_round_shift_64bit(temp2[1]);
+  step[2] = pack_4(temp1[0], temp1[1]);
+  step[3] = pack_4(temp2[0], temp2[1]);
 
   // stage 2
   io[0] = _mm_add_epi32(step[0], step[3]);  // step[0] + step[3]
@@ -211,31 +187,11 @@ void vpx_highbd_idct4x4_16_add_sse2(const tran_low_t *input, uint16_t *dest,
       highbd_idct4_large_sse2(io);
       highbd_idct4_large_sse2(io);
     }
-    io[0] = wraplow_16bit_sse2(io[0], io[1], _mm_set1_epi32(8));
-    io[1] = wraplow_16bit_sse2(io[2], io[3], _mm_set1_epi32(8));
+    io[0] = wraplow_16bit(io[0], io[1], _mm_set1_epi32(8));
+    io[1] = wraplow_16bit(io[2], io[3], _mm_set1_epi32(8));
   }
 
-  // Reconstruction and Store
-  {
-    __m128i d0 = _mm_loadl_epi64((const __m128i *)dest);
-    __m128i d2 = _mm_loadl_epi64((const __m128i *)(dest + stride * 2));
-    d0 = _mm_unpacklo_epi64(d0,
-                            _mm_loadl_epi64((const __m128i *)(dest + stride)));
-    d2 = _mm_unpacklo_epi64(
-        d2, _mm_loadl_epi64((const __m128i *)(dest + stride * 3)));
-    d0 = clamp_high_sse2(_mm_adds_epi16(d0, io[0]), bd);
-    d2 = clamp_high_sse2(_mm_adds_epi16(d2, io[1]), bd);
-    // store input0
-    _mm_storel_epi64((__m128i *)dest, d0);
-    // store input1
-    d0 = _mm_srli_si128(d0, 8);
-    _mm_storel_epi64((__m128i *)(dest + stride), d0);
-    // store input2
-    _mm_storel_epi64((__m128i *)(dest + stride * 2), d2);
-    // store input3
-    d2 = _mm_srli_si128(d2, 8);
-    _mm_storel_epi64((__m128i *)(dest + stride * 3), d2);
-  }
+  recon_and_store_4(dest, io, stride, bd);
 }
 
 void vpx_highbd_idct4x4_1_add_sse2(const tran_low_t *input, uint16_t *dest,
diff --git a/vpx_dsp/x86/highbd_idct4x4_add_sse4.c b/vpx_dsp/x86/highbd_idct4x4_add_sse4.c
new file mode 100644 (file)
index 0000000..9d1c6f4
--- /dev/null
@@ -0,0 +1,107 @@
+/*
+ *  Copyright (c) 2017 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 <smmintrin.h>
+
+#include "./vpx_dsp_rtcd.h"
+#include "vpx_dsp/x86/highbd_inv_txfm_sse2.h"
+#include "vpx_dsp/x86/inv_txfm_sse2.h"
+#include "vpx_dsp/x86/transpose_sse2.h"
+
+static INLINE void extend_64bit(const __m128i in,
+                                __m128i *const out /*out[2]*/) {
+  out[0] = _mm_unpacklo_epi32(in, in);  // 0, 0, 1, 1
+  out[1] = _mm_unpackhi_epi32(in, in);  // 2, 2, 3, 3
+}
+
+static INLINE void highbd_idct4(__m128i *const io) {
+  const __m128i cospi_p16_p16 =
+      _mm_setr_epi32(cospi_16_64 << 2, 0, cospi_16_64 << 2, 0);
+  const __m128i cospi_p08_p08 =
+      _mm_setr_epi32(cospi_8_64 << 2, 0, cospi_8_64 << 2, 0);
+  const __m128i cospi_p24_p24 =
+      _mm_setr_epi32(cospi_24_64 << 2, 0, cospi_24_64 << 2, 0);
+  __m128i temp1[4], temp2[4], step[4];
+
+  transpose_32bit_4x4(&io[0], &io[1], &io[2], &io[3]);
+
+  // stage 1
+  temp1[0] = _mm_add_epi32(io[0], io[2]);  // input[0] + input[2]
+  temp2[0] = _mm_sub_epi32(io[0], io[2]);  // input[0] - input[2]
+  extend_64bit(temp1[0], temp1);
+  extend_64bit(temp2[0], temp2);
+  temp1[0] = _mm_mul_epi32(temp1[0], cospi_p16_p16);
+  temp1[1] = _mm_mul_epi32(temp1[1], cospi_p16_p16);
+  temp2[0] = _mm_mul_epi32(temp2[0], cospi_p16_p16);
+  temp2[1] = _mm_mul_epi32(temp2[1], cospi_p16_p16);
+  temp1[0] = dct_const_round_shift_64bit(temp1[0]);
+  temp1[1] = dct_const_round_shift_64bit(temp1[1]);
+  temp2[0] = dct_const_round_shift_64bit(temp2[0]);
+  temp2[1] = dct_const_round_shift_64bit(temp2[1]);
+  step[0] = pack_4(temp1[0], temp1[1]);
+  step[1] = pack_4(temp2[0], temp2[1]);
+
+  extend_64bit(io[1], temp1);
+  extend_64bit(io[3], temp2);
+  temp1[2] = _mm_mul_epi32(temp1[0], cospi_p08_p08);
+  temp1[3] = _mm_mul_epi32(temp1[1], cospi_p08_p08);
+  temp1[0] = _mm_mul_epi32(temp1[0], cospi_p24_p24);
+  temp1[1] = _mm_mul_epi32(temp1[1], cospi_p24_p24);
+  temp2[2] = _mm_mul_epi32(temp2[0], cospi_p24_p24);
+  temp2[3] = _mm_mul_epi32(temp2[1], cospi_p24_p24);
+  temp2[0] = _mm_mul_epi32(temp2[0], cospi_p08_p08);
+  temp2[1] = _mm_mul_epi32(temp2[1], cospi_p08_p08);
+  temp1[0] = _mm_sub_epi64(temp1[0], temp2[0]);  // [1]*cospi_24 - [3]*cospi_8
+  temp1[1] = _mm_sub_epi64(temp1[1], temp2[1]);  // [1]*cospi_24 - [3]*cospi_8
+  temp2[0] = _mm_add_epi64(temp1[2], temp2[2]);  // [1]*cospi_8 + [3]*cospi_24
+  temp2[1] = _mm_add_epi64(temp1[3], temp2[3]);  // [1]*cospi_8 + [3]*cospi_24
+  temp1[0] = dct_const_round_shift_64bit(temp1[0]);
+  temp1[1] = dct_const_round_shift_64bit(temp1[1]);
+  temp2[0] = dct_const_round_shift_64bit(temp2[0]);
+  temp2[1] = dct_const_round_shift_64bit(temp2[1]);
+  step[2] = pack_4(temp1[0], temp1[1]);
+  step[3] = pack_4(temp2[0], temp2[1]);
+
+  // stage 2
+  io[0] = _mm_add_epi32(step[0], step[3]);  // step[0] + step[3]
+  io[1] = _mm_add_epi32(step[1], step[2]);  // step[1] + step[2]
+  io[2] = _mm_sub_epi32(step[1], step[2]);  // step[1] - step[2]
+  io[3] = _mm_sub_epi32(step[0], step[3]);  // step[0] - step[3]
+}
+
+void vpx_highbd_idct4x4_16_add_sse4_1(const tran_low_t *input, uint16_t *dest,
+                                      int stride, int bd) {
+  __m128i io[4];
+
+  io[0] = _mm_load_si128((const __m128i *)(input + 0));
+  io[1] = _mm_load_si128((const __m128i *)(input + 4));
+  io[2] = _mm_load_si128((const __m128i *)(input + 8));
+  io[3] = _mm_load_si128((const __m128i *)(input + 12));
+
+  if (bd == 8) {
+    __m128i io_short[2];
+
+    io_short[0] = _mm_packs_epi32(io[0], io[1]);
+    io_short[1] = _mm_packs_epi32(io[2], io[3]);
+    idct4_sse2(io_short);
+    idct4_sse2(io_short);
+    io_short[0] = _mm_add_epi16(io_short[0], _mm_set1_epi16(8));
+    io_short[1] = _mm_add_epi16(io_short[1], _mm_set1_epi16(8));
+    io[0] = _mm_srai_epi16(io_short[0], 4);
+    io[1] = _mm_srai_epi16(io_short[1], 4);
+  } else {
+    highbd_idct4(io);
+    highbd_idct4(io);
+    io[0] = wraplow_16bit(io[0], io[1], _mm_set1_epi32(8));
+    io[1] = wraplow_16bit(io[2], io[3], _mm_set1_epi32(8));
+  }
+
+  recon_and_store_4(dest, io, stride, bd);
+}
index ea100c6e1975306e5d9d418b9781ae408f19a25f..be740a8c7fe690890778cb7ad1f8e8d298f18cf5 100644 (file)
 #include "vpx_dsp/inv_txfm.h"
 #include "vpx_dsp/x86/txfm_common_sse2.h"
 
+static INLINE __m128i wraplow_16bit(const __m128i in0, const __m128i in1,
+                                    const __m128i rounding) {
+  __m128i temp[2];
+  temp[0] = _mm_add_epi32(in0, rounding);
+  temp[1] = _mm_add_epi32(in1, rounding);
+  temp[0] = _mm_srai_epi32(temp[0], 4);
+  temp[1] = _mm_srai_epi32(temp[1], 4);
+  return _mm_packs_epi32(temp[0], temp[1]);
+}
+
+static INLINE __m128i dct_const_round_shift_64bit(const __m128i in) {
+  const __m128i t = _mm_add_epi64(
+      in,
+      _mm_setr_epi32(DCT_CONST_ROUNDING << 2, 0, DCT_CONST_ROUNDING << 2, 0));
+  return _mm_srli_si128(t, 2);
+}
+
+static INLINE __m128i pack_4(const __m128i in0, const __m128i in1) {
+  const __m128i t0 = _mm_unpacklo_epi32(in0, in1);  // 0, 2
+  const __m128i t1 = _mm_unpackhi_epi32(in0, in1);  // 1, 3
+  return _mm_unpacklo_epi32(t0, t1);                // 0, 1, 2, 3
+}
+
 static INLINE __m128i add_dc_clamp(const __m128i *const min,
                                    const __m128i *const max,
                                    const __m128i *const dc,
@@ -67,4 +90,23 @@ static INLINE __m128i clamp_high_sse2(__m128i value, int bd) {
   return retval;
 }
 
+static INLINE void recon_and_store_4(uint16_t *const dest,
+                                     const __m128i *const io, const int stride,
+                                     int bd) {
+  __m128i d0 = _mm_loadl_epi64((const __m128i *)dest);
+  __m128i d2 = _mm_loadl_epi64((const __m128i *)(dest + stride * 2));
+  d0 =
+      _mm_unpacklo_epi64(d0, _mm_loadl_epi64((const __m128i *)(dest + stride)));
+  d2 = _mm_unpacklo_epi64(
+      d2, _mm_loadl_epi64((const __m128i *)(dest + stride * 3)));
+  d0 = clamp_high_sse2(_mm_adds_epi16(d0, io[0]), bd);
+  d2 = clamp_high_sse2(_mm_adds_epi16(d2, io[1]), bd);
+  _mm_storel_epi64((__m128i *)dest, d0);
+  d0 = _mm_srli_si128(d0, 8);
+  _mm_storel_epi64((__m128i *)(dest + stride), d0);
+  _mm_storel_epi64((__m128i *)(dest + stride * 2), d2);
+  d2 = _mm_srli_si128(d2, 8);
+  _mm_storel_epi64((__m128i *)(dest + stride * 3), d2);
+}
+
 #endif  // VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_