1 files changed, 130 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/x86/encodetxb_avx2.c b/third_party/aom/av1/encoder/x86/encodetxb_avx2.c
new file mode 100644
index 0000000000..7642f57d18
--- /dev/null
+++ b/third_party/aom/av1/encoder/x86/encodetxb_avx2.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <emmintrin.h>  // SSE2
+#include <smmintrin.h>  /* SSE4.1 */
+#include <immintrin.h>  /* AVX2 */
+
+#include "aom/aom_integer.h"
+#include "aom_dsp/x86/mem_sse2.h"
+#include "av1/common/onyxc_int.h"
+#include "av1/common/txb_common.h"
+#include "aom_dsp/x86/synonyms.h"
+#include "aom_dsp/x86/synonyms_avx2.h"
+
+void av1_txb_init_levels_avx2(const tran_low_t *const coeff, const int width,
+                              const int height, uint8_t *const levels) {
+  const int stride = width + TX_PAD_HOR;
+  const __m256i y_zeros = _mm256_setzero_si256();
+
+  const int32_t pre_len = sizeof(*levels) * TX_PAD_TOP * stride;
+  uint8_t *pre_buf = levels - TX_PAD_TOP * stride;
+  uint8_t *pre_buf_end = pre_buf + pre_len;
+  do {
+    yy_storeu_256(pre_buf, y_zeros);
+    pre_buf += 32;
+  } while (pre_buf < pre_buf_end);
+
+  const int32_t bottom_len = sizeof(*levels) * (TX_PAD_BOTTOM * stride);
+  uint8_t *bottom_buf_end = levels + (height + TX_PAD_BOTTOM) * stride;
+  uint8_t *bottom_buf = bottom_buf_end - ((bottom_len + 31) & (~31));
+
+  do {
+    yy_storeu_256(bottom_buf, y_zeros);
+    bottom_buf += 32;
+  } while (bottom_buf < bottom_buf_end);
+
+  int i = 0;
+  uint8_t *ls = levels;
+  const tran_low_t *cf = coeff;
+  if (width == 4) {
+    do {
+      const __m256i c0 = yy_loadu_256(cf);
+      const __m256i c1 = yy_loadu_256(cf + 8);
+      const __m256i abs01 = _mm256_abs_epi16(_mm256_packs_epi32(c0, c1));
+      const __m256i abs01_8 = _mm256_packs_epi16(abs01, y_zeros);
+      const __m256i res_ = _mm256_shuffle_epi32(abs01_8, 0xd8);
+      const __m256i res = _mm256_permute4x64_epi64(res_, 0xd8);
+      yy_storeu_256(ls, res);
+      ls += 32;
+      cf += 16;
+      i += 4;
+    } while (i < height);
+  } else if (width == 8) {
+    do {
+      const __m256i coeffA = yy_loadu_256(cf);
+      const __m256i coeffB = yy_loadu_256(cf + 8);
+      const __m256i coeffC = yy_loadu_256(cf + 16);
+      const __m256i coeffD = yy_loadu_256(cf + 24);
+      const __m256i coeffAB = _mm256_packs_epi32(coeffA, coeffB);
+      const __m256i coeffCD = _mm256_packs_epi32(coeffC, coeffD);
+      const __m256i absAB = _mm256_abs_epi16(coeffAB);
+      const __m256i absCD = _mm256_abs_epi16(coeffCD);
+      const __m256i absABCD = _mm256_packs_epi16(absAB, absCD);
+      const __m256i res_ = _mm256_permute4x64_epi64(absABCD, 0xd8);
+      const __m256i res = _mm256_shuffle_epi32(res_, 0xd8);
+      const __m128i res0 = _mm256_castsi256_si128(res);
+      const __m128i res1 = _mm256_extracti128_si256(res, 1);
+      xx_storel_64(ls, res0);
+      *(int32_t *)(ls + width) = 0;
+      xx_storel_64(ls + stride, _mm_srli_si128(res0, 8));
+      *(int32_t *)(ls + width + stride) = 0;
+      xx_storel_64(ls + stride * 2, res1);
+      *(int32_t *)(ls + width + stride * 2) = 0;
+      xx_storel_64(ls + stride * 3, _mm_srli_si128(res1, 8));
+      *(int32_t *)(ls + width + stride * 3) = 0;
+      cf += 32;
+      ls += stride << 2;
+      i += 4;
+    } while (i < height);
+  } else if (width == 16) {
+    do {
+      const __m256i coeffA = yy_loadu_256(cf);
+      const __m256i coeffB = yy_loadu_256(cf + 8);
+      const __m256i coeffC = yy_loadu_256(cf + 16);
+      const __m256i coeffD = yy_loadu_256(cf + 24);
+      const __m256i coeffAB = _mm256_packs_epi32(coeffA, coeffB);
+      const __m256i coeffCD = _mm256_packs_epi32(coeffC, coeffD);
+      const __m256i absAB = _mm256_abs_epi16(coeffAB);
+      const __m256i absCD = _mm256_abs_epi16(coeffCD);
+      const __m256i absABCD = _mm256_packs_epi16(absAB, absCD);
+      const __m256i res_ = _mm256_permute4x64_epi64(absABCD, 0xd8);
+      const __m256i res = _mm256_shuffle_epi32(res_, 0xd8);
+      xx_storeu_128(ls, _mm256_castsi256_si128(res));
+      xx_storeu_128(ls + stride, _mm256_extracti128_si256(res, 1));
+      cf += 32;
+      *(int32_t *)(ls + width) = 0;
+      *(int32_t *)(ls + stride + width) = 0;
+      ls += stride << 1;
+      i += 2;
+    } while (i < height);
+  } else {
+    do {
+      const __m256i coeffA = yy_loadu_256(cf);
+      const __m256i coeffB = yy_loadu_256(cf + 8);
+      const __m256i coeffC = yy_loadu_256(cf + 16);
+      const __m256i coeffD = yy_loadu_256(cf + 24);
+      const __m256i coeffAB = _mm256_packs_epi32(coeffA, coeffB);
+      const __m256i coeffCD = _mm256_packs_epi32(coeffC, coeffD);
+      const __m256i absAB = _mm256_abs_epi16(coeffAB);
+      const __m256i absCD = _mm256_abs_epi16(coeffCD);
+      const __m256i absABCD = _mm256_packs_epi16(absAB, absCD);
+      const __m256i res_ = _mm256_permute4x64_epi64(absABCD, 0xd8);
+      const __m256i res = _mm256_shuffle_epi32(res_, 0xd8);
+      yy_storeu_256(ls, res);
+      cf += 32;
+      *(int32_t *)(ls + width) = 0;
+      ls += stride;
+      i += 1;
+    } while (i < height);
+  }
+}