Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 277 insertions, 0 deletions

diff --git a/third_party/aom/av1/common/x86/convolve_avx2.c b/third_party/aom/av1/common/x86/convolve_avx2.c
new file mode 100644
index 0000000000..0e91ea9475
--- /dev/null
+++ b/third_party/aom/av1/common/x86/convolve_avx2.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright (c) 2017, 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 <immintrin.h>
+
+#include "config/av1_rtcd.h"
+
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_dsp/x86/convolve_avx2.h"
+#include "aom_dsp/x86/synonyms.h"
+
+void av1_convolve_y_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst,
+                            int dst_stride, int w, int h,
+                            const InterpFilterParams *filter_params_x,
+                            const InterpFilterParams *filter_params_y,
+                            const int subpel_x_q4, const int subpel_y_q4,
+                            ConvolveParams *conv_params) {
+  int i, j;
+  const int fo_vert = filter_params_y->taps / 2 - 1;
+  const uint8_t *const src_ptr = src - fo_vert * src_stride;
+
+  // right shift is F-1 because we are already dividing
+  // filter co-efficients by 2
+  const int right_shift_bits = (FILTER_BITS - 1);
+  const __m128i right_shift = _mm_cvtsi32_si128(right_shift_bits);
+  const __m256i right_shift_const =
+      _mm256_set1_epi16((1 << right_shift_bits) >> 1);
+  __m256i coeffs[4], s[8];
+
+  assert(conv_params->round_0 <= FILTER_BITS);
+  assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) ||
+         ((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS)));
+
+  prepare_coeffs_lowbd(filter_params_y, subpel_y_q4, coeffs);
+
+  (void)filter_params_x;
+  (void)subpel_x_q4;
+  (void)conv_params;
+
+  for (j = 0; j < w; j += 16) {
+    const uint8_t *data = &src_ptr[j];
+    __m256i src6;
+
+    // Load lines a and b. Line a to lower 128, line b to upper 128
+    const __m256i src_01a = _mm256_permute2x128_si256(
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 0 * src_stride))),
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 1 * src_stride))),
+        0x20);
+
+    const __m256i src_12a = _mm256_permute2x128_si256(
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 1 * src_stride))),
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 2 * src_stride))),
+        0x20);
+
+    const __m256i src_23a = _mm256_permute2x128_si256(
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 2 * src_stride))),
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 3 * src_stride))),
+        0x20);
+
+    const __m256i src_34a = _mm256_permute2x128_si256(
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 3 * src_stride))),
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 4 * src_stride))),
+        0x20);
+
+    const __m256i src_45a = _mm256_permute2x128_si256(
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 4 * src_stride))),
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 5 * src_stride))),
+        0x20);
+
+    src6 = _mm256_castsi128_si256(
+        _mm_loadu_si128((__m128i *)(data + 6 * src_stride)));
+    const __m256i src_56a = _mm256_permute2x128_si256(
+        _mm256_castsi128_si256(
+            _mm_loadu_si128((__m128i *)(data + 5 * src_stride))),
+        src6, 0x20);
+
+    s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+    s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+    s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+
+    s[4] = _mm256_unpackhi_epi8(src_01a, src_12a);
+    s[5] = _mm256_unpackhi_epi8(src_23a, src_34a);
+    s[6] = _mm256_unpackhi_epi8(src_45a, src_56a);
+
+    for (i = 0; i < h; i += 2) {
+      data = &src_ptr[i * src_stride + j];
+      const __m256i src_67a = _mm256_permute2x128_si256(
+          src6,
+          _mm256_castsi128_si256(
+              _mm_loadu_si128((__m128i *)(data + 7 * src_stride))),
+          0x20);
+
+      src6 = _mm256_castsi128_si256(
+          _mm_loadu_si128((__m128i *)(data + 8 * src_stride)));
+      const __m256i src_78a = _mm256_permute2x128_si256(
+          _mm256_castsi128_si256(
+              _mm_loadu_si128((__m128i *)(data + 7 * src_stride))),
+          src6, 0x20);
+
+      s[3] = _mm256_unpacklo_epi8(src_67a, src_78a);
+      s[7] = _mm256_unpackhi_epi8(src_67a, src_78a);
+
+      const __m256i res_lo = convolve_lowbd(s, coeffs);
+
+      /* rounding code */
+      // shift by F - 1
+      const __m256i res_16b_lo = _mm256_sra_epi16(
+          _mm256_add_epi16(res_lo, right_shift_const), right_shift);
+      // 8 bit conversion and saturation to uint8
+      __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo);
+
+      if (w - j > 8) {
+        const __m256i res_hi = convolve_lowbd(s + 4, coeffs);
+
+        /* rounding code */
+        // shift by F - 1
+        const __m256i res_16b_hi = _mm256_sra_epi16(
+            _mm256_add_epi16(res_hi, right_shift_const), right_shift);
+        // 8 bit conversion and saturation to uint8
+        __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi);
+
+        __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi);
+
+        const __m128i res_0 = _mm256_castsi256_si128(res_a);
+        const __m128i res_1 = _mm256_extracti128_si256(res_a, 1);
+
+        _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0);
+        _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
+                         res_1);
+      } else {
+        const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo);
+        const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1);
+        if (w - j > 4) {
+          _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0);
+          _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
+                           res_1);
+        } else if (w - j > 2) {
+          xx_storel_32(&dst[i * dst_stride + j], res_0);
+          xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1);
+        } else {
+          __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j];
+          __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + j + dst_stride];
+          *(uint16_t *)p_0 = _mm_cvtsi128_si32(res_0);
+          *(uint16_t *)p_1 = _mm_cvtsi128_si32(res_1);
+        }
+      }
+
+      s[0] = s[1];
+      s[1] = s[2];
+      s[2] = s[3];
+
+      s[4] = s[5];
+      s[5] = s[6];
+      s[6] = s[7];
+    }
+  }
+}
+
+void av1_convolve_x_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst,
+                            int dst_stride, int w, int h,
+                            const InterpFilterParams *filter_params_x,
+                            const InterpFilterParams *filter_params_y,
+                            const int subpel_x_q4, const int subpel_y_q4,
+                            ConvolveParams *conv_params) {
+  int i, j;
+  const int fo_horiz = filter_params_x->taps / 2 - 1;
+  const uint8_t *const src_ptr = src - fo_horiz;
+  const int bits = FILTER_BITS - conv_params->round_0;
+
+  __m256i filt[4], coeffs[4];
+
+  filt[0] = _mm256_load_si256((__m256i const *)filt_global_avx2);
+  filt[1] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32));
+  filt[2] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 2));
+  filt[3] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 3));
+
+  prepare_coeffs_lowbd(filter_params_x, subpel_x_q4, coeffs);
+
+  const __m256i round_0_const =
+      _mm256_set1_epi16((1 << (conv_params->round_0 - 1)) >> 1);
+  const __m128i round_0_shift = _mm_cvtsi32_si128(conv_params->round_0 - 1);
+  const __m256i round_const = _mm256_set1_epi16((1 << bits) >> 1);
+  const __m128i round_shift = _mm_cvtsi32_si128(bits);
+
+  (void)filter_params_y;
+  (void)subpel_y_q4;
+
+  assert(bits >= 0);
+  assert((FILTER_BITS - conv_params->round_1) >= 0 ||
+         ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS));
+  assert(conv_params->round_0 > 0);
+
+  if (w <= 8) {
+    for (i = 0; i < h; i += 2) {
+      const __m256i data = _mm256_permute2x128_si256(
+          _mm256_castsi128_si256(
+              _mm_loadu_si128((__m128i *)(&src_ptr[i * src_stride]))),
+          _mm256_castsi128_si256(_mm_loadu_si128(
+              (__m128i *)(&src_ptr[i * src_stride + src_stride]))),
+          0x20);
+
+      __m256i res_16b = convolve_lowbd_x(data, coeffs, filt);
+
+      res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const),
+                                 round_0_shift);
+
+      res_16b =
+          _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const), round_shift);
+
+      /* rounding code */
+      // 8 bit conversion and saturation to uint8
+      __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b);
+
+      const __m128i res_0 = _mm256_castsi256_si128(res_8b);
+      const __m128i res_1 = _mm256_extracti128_si256(res_8b, 1);
+      if (w > 4) {
+        _mm_storel_epi64((__m128i *)&dst[i * dst_stride], res_0);
+        _mm_storel_epi64((__m128i *)&dst[i * dst_stride + dst_stride], res_1);
+      } else if (w > 2) {
+        xx_storel_32(&dst[i * dst_stride], res_0);
+        xx_storel_32(&dst[i * dst_stride + dst_stride], res_1);
+      } else {
+        __m128i *const p_0 = (__m128i *)&dst[i * dst_stride];
+        __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + dst_stride];
+        *(uint16_t *)p_0 = _mm_cvtsi128_si32(res_0);
+        *(uint16_t *)p_1 = _mm_cvtsi128_si32(res_1);
+      }
+    }
+  } else {
+    for (i = 0; i < h; ++i) {
+      for (j = 0; j < w; j += 16) {
+        // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15 16 17 18
+        // 19 20 21 22 23
+        const __m256i data = _mm256_inserti128_si256(
+            _mm256_loadu_si256((__m256i *)&src_ptr[(i * src_stride) + j]),
+            _mm_loadu_si128((__m128i *)&src_ptr[(i * src_stride) + (j + 8)]),
+            1);
+
+        __m256i res_16b = convolve_lowbd_x(data, coeffs, filt);
+
+        res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const),
+                                   round_0_shift);
+
+        res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const),
+                                   round_shift);
+
+        /* rounding code */
+        // 8 bit conversion and saturation to uint8
+        __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b);
+
+        // Store values into the destination buffer
+        // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+        res_8b = _mm256_permute4x64_epi64(res_8b, 216);
+        __m128i res = _mm256_castsi256_si128(res_8b);
+        _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res);
+      }
+    }
+  }
+}