1 files changed, 100 insertions, 0 deletions
diff --git a/vpx_dsp/x86/highbd_sad_avx2.c b/vpx_dsp/x86/highbd_sad_avx2.c
new file mode 100644
index 000000000..36e9fa6c0
--- /dev/null
+++ b/vpx_dsp/x86/highbd_sad_avx2.c
@@ -0,0 +1,100 @@
+/*
+ *  Copyright (c) 2022 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 <immintrin.h>  // AVX2
+#include "./vpx_dsp_rtcd.h"
+#include "vpx/vpx_integer.h"
+
+static VPX_FORCE_INLINE unsigned int calc_final(const __m256i sums_32) {
+  const __m256i t0 = _mm256_add_epi32(sums_32, _mm256_srli_si256(sums_32, 8));
+  const __m256i t1 = _mm256_add_epi32(t0, _mm256_srli_si256(t0, 4));
+  const __m128i sum = _mm_add_epi32(_mm256_castsi256_si128(t1),
+                                    _mm256_extractf128_si256(t1, 1));
+  return (unsigned int)_mm_cvtsi128_si32(sum);
+}
+
+static VPX_FORCE_INLINE void highbd_sad16xH(__m256i *sums_16,
+                                            const uint16_t *src, int src_stride,
+                                            uint16_t *ref, int ref_stride,
+                                            int height) {
+  int i;
+  for (i = 0; i < height; i += 2) {
+    // load src and all ref[]
+    const __m256i s0 = _mm256_load_si256((const __m256i *)src);
+    const __m256i s1 = _mm256_load_si256((const __m256i *)(src + src_stride));
+    const __m256i r0 = _mm256_loadu_si256((const __m256i *)ref);
+    const __m256i r1 = _mm256_loadu_si256((const __m256i *)(ref + ref_stride));
+    // absolute differences between every ref[] to src
+    const __m256i abs_diff0 = _mm256_abs_epi16(_mm256_sub_epi16(r0, s0));
+    const __m256i abs_diff1 = _mm256_abs_epi16(_mm256_sub_epi16(r1, s1));
+    // sum every abs diff
+    *sums_16 = _mm256_add_epi16(*sums_16, abs_diff0);
+    *sums_16 = _mm256_add_epi16(*sums_16, abs_diff1);
+
+    src += src_stride << 1;
+    ref += ref_stride << 1;
+  }
+}
+
+unsigned int vpx_highbd_sad16x32_avx2(const uint8_t *src8_ptr, int src_stride,
+                                      const uint8_t *ref8_ptr, int ref_stride) {
+  const uint16_t *src = CONVERT_TO_SHORTPTR(src8_ptr);
+  uint16_t *ref = CONVERT_TO_SHORTPTR(ref8_ptr);
+  __m256i sums_32 = _mm256_setzero_si256();
+  int i;
+
+  for (i = 0; i < 2; ++i) {
+    __m256i sums_16 = _mm256_setzero_si256();
+
+    highbd_sad16xH(&sums_16, src, src_stride, ref, ref_stride, 16);
+
+    // sums_16 will outrange after 16 rows, so add current sums_16 to sums_32
+    sums_32 = _mm256_add_epi32(
+        sums_32,
+        _mm256_add_epi32(
+            _mm256_cvtepu16_epi32(_mm256_castsi256_si128(sums_16)),
+            _mm256_cvtepu16_epi32(_mm256_extractf128_si256(sums_16, 1))));
+
+    src += src_stride << 4;
+    ref += ref_stride << 4;
+  }
+  return calc_final(sums_32);
+}
+
+unsigned int vpx_highbd_sad16x16_avx2(const uint8_t *src8_ptr, int src_stride,
+                                      const uint8_t *ref8_ptr, int ref_stride) {
+  const uint16_t *src = CONVERT_TO_SHORTPTR(src8_ptr);
+  uint16_t *ref = CONVERT_TO_SHORTPTR(ref8_ptr);
+  __m256i sums_16 = _mm256_setzero_si256();
+
+  highbd_sad16xH(&sums_16, src, src_stride, ref, ref_stride, 16);
+
+  {
+    const __m256i sums_32 = _mm256_add_epi32(
+        _mm256_cvtepu16_epi32(_mm256_castsi256_si128(sums_16)),
+        _mm256_cvtepu16_epi32(_mm256_extractf128_si256(sums_16, 1)));
+    return calc_final(sums_32);
+  }
+}
+
+unsigned int vpx_highbd_sad16x8_avx2(const uint8_t *src8_ptr, int src_stride,
+                                     const uint8_t *ref8_ptr, int ref_stride) {
+  const uint16_t *src = CONVERT_TO_SHORTPTR(src8_ptr);
+  uint16_t *ref = CONVERT_TO_SHORTPTR(ref8_ptr);
+  __m256i sums_16 = _mm256_setzero_si256();
+
+  highbd_sad16xH(&sums_16, src, src_stride, ref, ref_stride, 8);
+
+  {
+    const __m256i sums_32 = _mm256_add_epi32(
+        _mm256_cvtepu16_epi32(_mm256_castsi256_si128(sums_16)),
+        _mm256_cvtepu16_epi32(_mm256_extractf128_si256(sums_16, 1)));
+    return calc_final(sums_32);
+  }
+}