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-rw-r--r--third_party/aom/av1/common/x86/highbd_convolve_2d_avx2.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/x86/highbd_convolve_2d_avx2.c b/third_party/aom/av1/common/x86/highbd_convolve_2d_avx2.c
new file mode 100644
index 0000000000..ae68f0bbb3
--- /dev/null
+++ b/third_party/aom/av1/common/x86/highbd_convolve_2d_avx2.c
@@ -0,0 +1,326 @@
+/*
+ * 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 <assert.h>
+
+#include "config/aom_dsp_rtcd.h"
+
+#include "aom_dsp/x86/convolve_avx2.h"
+#include "aom_dsp/x86/synonyms.h"
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_dsp/aom_filter.h"
+#include "av1/common/convolve.h"
+
+void av1_highbd_convolve_2d_sr_avx2(const uint16_t *src, int src_stride,
+ uint16_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 bd) {
+ DECLARE_ALIGNED(32, int16_t, im_block[(MAX_SB_SIZE + MAX_FILTER_TAP) * 8]);
+ int im_h = h + filter_params_y->taps - 1;
+ int im_stride = 8;
+ int i, j;
+ const int fo_vert = filter_params_y->taps / 2 - 1;
+ const int fo_horiz = filter_params_x->taps / 2 - 1;
+ const uint16_t *const src_ptr = src - fo_vert * src_stride - fo_horiz;
+
+ // Check that, even with 12-bit input, the intermediate values will fit
+ // into an unsigned 16-bit intermediate array.
+ assert(bd + FILTER_BITS + 2 - conv_params->round_0 <= 16);
+
+ __m256i s[8], coeffs_y[4], coeffs_x[4];
+
+ const __m256i round_const_x = _mm256_set1_epi32(
+ ((1 << conv_params->round_0) >> 1) + (1 << (bd + FILTER_BITS - 1)));
+ const __m128i round_shift_x = _mm_cvtsi32_si128(conv_params->round_0);
+
+ const __m256i round_const_y = _mm256_set1_epi32(
+ ((1 << conv_params->round_1) >> 1) -
+ (1 << (bd + 2 * FILTER_BITS - conv_params->round_0 - 1)));
+ const __m128i round_shift_y = _mm_cvtsi32_si128(conv_params->round_1);
+
+ const int bits =
+ FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1;
+ const __m128i round_shift_bits = _mm_cvtsi32_si128(bits);
+ const __m256i round_const_bits = _mm256_set1_epi32((1 << bits) >> 1);
+ const __m256i clip_pixel =
+ _mm256_set1_epi16(bd == 10 ? 1023 : (bd == 12 ? 4095 : 255));
+ const __m256i zero = _mm256_setzero_si256();
+
+ prepare_coeffs(filter_params_x, subpel_x_q4, coeffs_x);
+ prepare_coeffs(filter_params_y, subpel_y_q4, coeffs_y);
+
+ for (j = 0; j < w; j += 8) {
+ /* Horizontal filter */
+ {
+ for (i = 0; i < im_h; i += 2) {
+ const __m256i row0 =
+ _mm256_loadu_si256((__m256i *)&src_ptr[i * src_stride + j]);
+ __m256i row1 = _mm256_set1_epi16(0);
+ if (i + 1 < im_h)
+ row1 =
+ _mm256_loadu_si256((__m256i *)&src_ptr[(i + 1) * src_stride + j]);
+
+ const __m256i r0 = _mm256_permute2x128_si256(row0, row1, 0x20);
+ const __m256i r1 = _mm256_permute2x128_si256(row0, row1, 0x31);
+
+ // even pixels
+ s[0] = _mm256_alignr_epi8(r1, r0, 0);
+ s[1] = _mm256_alignr_epi8(r1, r0, 4);
+ s[2] = _mm256_alignr_epi8(r1, r0, 8);
+ s[3] = _mm256_alignr_epi8(r1, r0, 12);
+
+ __m256i res_even = convolve(s, coeffs_x);
+ res_even = _mm256_sra_epi32(_mm256_add_epi32(res_even, round_const_x),
+ round_shift_x);
+
+ // odd pixels
+ s[0] = _mm256_alignr_epi8(r1, r0, 2);
+ s[1] = _mm256_alignr_epi8(r1, r0, 6);
+ s[2] = _mm256_alignr_epi8(r1, r0, 10);
+ s[3] = _mm256_alignr_epi8(r1, r0, 14);
+
+ __m256i res_odd = convolve(s, coeffs_x);
+ res_odd = _mm256_sra_epi32(_mm256_add_epi32(res_odd, round_const_x),
+ round_shift_x);
+
+ __m256i res_even1 = _mm256_packs_epi32(res_even, res_even);
+ __m256i res_odd1 = _mm256_packs_epi32(res_odd, res_odd);
+ __m256i res = _mm256_unpacklo_epi16(res_even1, res_odd1);
+
+ _mm256_store_si256((__m256i *)&im_block[i * im_stride], res);
+ }
+ }
+
+ /* Vertical filter */
+ {
+ __m256i s0 = _mm256_loadu_si256((__m256i *)(im_block + 0 * im_stride));
+ __m256i s1 = _mm256_loadu_si256((__m256i *)(im_block + 1 * im_stride));
+ __m256i s2 = _mm256_loadu_si256((__m256i *)(im_block + 2 * im_stride));
+ __m256i s3 = _mm256_loadu_si256((__m256i *)(im_block + 3 * im_stride));
+ __m256i s4 = _mm256_loadu_si256((__m256i *)(im_block + 4 * im_stride));
+ __m256i s5 = _mm256_loadu_si256((__m256i *)(im_block + 5 * im_stride));
+
+ s[0] = _mm256_unpacklo_epi16(s0, s1);
+ s[1] = _mm256_unpacklo_epi16(s2, s3);
+ s[2] = _mm256_unpacklo_epi16(s4, s5);
+
+ s[4] = _mm256_unpackhi_epi16(s0, s1);
+ s[5] = _mm256_unpackhi_epi16(s2, s3);
+ s[6] = _mm256_unpackhi_epi16(s4, s5);
+
+ for (i = 0; i < h; i += 2) {
+ const int16_t *data = &im_block[i * im_stride];
+
+ const __m256i s6 =
+ _mm256_loadu_si256((__m256i *)(data + 6 * im_stride));
+ const __m256i s7 =
+ _mm256_loadu_si256((__m256i *)(data + 7 * im_stride));
+
+ s[3] = _mm256_unpacklo_epi16(s6, s7);
+ s[7] = _mm256_unpackhi_epi16(s6, s7);
+
+ const __m256i res_a = convolve(s, coeffs_y);
+ __m256i res_a_round = _mm256_sra_epi32(
+ _mm256_add_epi32(res_a, round_const_y), round_shift_y);
+
+ res_a_round = _mm256_sra_epi32(
+ _mm256_add_epi32(res_a_round, round_const_bits), round_shift_bits);
+
+ if (w - j > 4) {
+ const __m256i res_b = convolve(s + 4, coeffs_y);
+ __m256i res_b_round = _mm256_sra_epi32(
+ _mm256_add_epi32(res_b, round_const_y), round_shift_y);
+ res_b_round =
+ _mm256_sra_epi32(_mm256_add_epi32(res_b_round, round_const_bits),
+ round_shift_bits);
+
+ __m256i res_16bit = _mm256_packs_epi32(res_a_round, res_b_round);
+ res_16bit = _mm256_min_epi16(res_16bit, clip_pixel);
+ res_16bit = _mm256_max_epi16(res_16bit, zero);
+
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j],
+ _mm256_castsi256_si128(res_16bit));
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ _mm256_extracti128_si256(res_16bit, 1));
+ } else if (w == 4) {
+ res_a_round = _mm256_packs_epi32(res_a_round, res_a_round);
+ res_a_round = _mm256_min_epi16(res_a_round, clip_pixel);
+ res_a_round = _mm256_max_epi16(res_a_round, zero);
+
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j],
+ _mm256_castsi256_si128(res_a_round));
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ _mm256_extracti128_si256(res_a_round, 1));
+ } else {
+ res_a_round = _mm256_packs_epi32(res_a_round, res_a_round);
+ res_a_round = _mm256_min_epi16(res_a_round, clip_pixel);
+ res_a_round = _mm256_max_epi16(res_a_round, zero);
+
+ xx_storel_32((__m128i *)&dst[i * dst_stride + j],
+ _mm256_castsi256_si128(res_a_round));
+ xx_storel_32((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ _mm256_extracti128_si256(res_a_round, 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];
+ }
+ }
+ }
+}
+
+static INLINE void copy_64(const uint16_t *src, uint16_t *dst) {
+ __m256i s[4];
+ s[0] = _mm256_loadu_si256((__m256i *)(src + 0 * 16));
+ s[1] = _mm256_loadu_si256((__m256i *)(src + 1 * 16));
+ s[2] = _mm256_loadu_si256((__m256i *)(src + 2 * 16));
+ s[3] = _mm256_loadu_si256((__m256i *)(src + 3 * 16));
+ _mm256_storeu_si256((__m256i *)(dst + 0 * 16), s[0]);
+ _mm256_storeu_si256((__m256i *)(dst + 1 * 16), s[1]);
+ _mm256_storeu_si256((__m256i *)(dst + 2 * 16), s[2]);
+ _mm256_storeu_si256((__m256i *)(dst + 3 * 16), s[3]);
+}
+
+static INLINE void copy_128(const uint16_t *src, uint16_t *dst) {
+ __m256i s[8];
+ s[0] = _mm256_loadu_si256((__m256i *)(src + 0 * 16));
+ s[1] = _mm256_loadu_si256((__m256i *)(src + 1 * 16));
+ s[2] = _mm256_loadu_si256((__m256i *)(src + 2 * 16));
+ s[3] = _mm256_loadu_si256((__m256i *)(src + 3 * 16));
+ s[4] = _mm256_loadu_si256((__m256i *)(src + 4 * 16));
+ s[5] = _mm256_loadu_si256((__m256i *)(src + 5 * 16));
+ s[6] = _mm256_loadu_si256((__m256i *)(src + 6 * 16));
+ s[7] = _mm256_loadu_si256((__m256i *)(src + 7 * 16));
+
+ _mm256_storeu_si256((__m256i *)(dst + 0 * 16), s[0]);
+ _mm256_storeu_si256((__m256i *)(dst + 1 * 16), s[1]);
+ _mm256_storeu_si256((__m256i *)(dst + 2 * 16), s[2]);
+ _mm256_storeu_si256((__m256i *)(dst + 3 * 16), s[3]);
+ _mm256_storeu_si256((__m256i *)(dst + 4 * 16), s[4]);
+ _mm256_storeu_si256((__m256i *)(dst + 5 * 16), s[5]);
+ _mm256_storeu_si256((__m256i *)(dst + 6 * 16), s[6]);
+ _mm256_storeu_si256((__m256i *)(dst + 7 * 16), s[7]);
+}
+
+void av1_highbd_convolve_2d_copy_sr_avx2(
+ const uint16_t *src, int src_stride, uint16_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 bd) {
+ (void)filter_params_x;
+ (void)filter_params_y;
+ (void)subpel_x_q4;
+ (void)subpel_y_q4;
+ (void)conv_params;
+ (void)bd;
+
+ if (w >= 16) {
+ assert(!((intptr_t)dst % 16));
+ assert(!(dst_stride % 16));
+ }
+
+ if (w == 2) {
+ do {
+ memcpy(dst, src, 2 * sizeof(*src));
+ src += src_stride;
+ dst += dst_stride;
+ memcpy(dst, src, 2 * sizeof(*src));
+ src += src_stride;
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ } else if (w == 4) {
+ do {
+ __m128i s[2];
+ s[0] = _mm_loadl_epi64((__m128i *)src);
+ src += src_stride;
+ s[1] = _mm_loadl_epi64((__m128i *)src);
+ src += src_stride;
+ _mm_storel_epi64((__m128i *)dst, s[0]);
+ dst += dst_stride;
+ _mm_storel_epi64((__m128i *)dst, s[1]);
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ } else if (w == 8) {
+ do {
+ __m128i s[2];
+ s[0] = _mm_loadu_si128((__m128i *)src);
+ src += src_stride;
+ s[1] = _mm_loadu_si128((__m128i *)src);
+ src += src_stride;
+ _mm_store_si128((__m128i *)dst, s[0]);
+ dst += dst_stride;
+ _mm_store_si128((__m128i *)dst, s[1]);
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ } else if (w == 16) {
+ do {
+ __m256i s[2];
+ s[0] = _mm256_loadu_si256((__m256i *)src);
+ src += src_stride;
+ s[1] = _mm256_loadu_si256((__m256i *)src);
+ src += src_stride;
+ _mm256_storeu_si256((__m256i *)dst, s[0]);
+ dst += dst_stride;
+ _mm256_storeu_si256((__m256i *)dst, s[1]);
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ } else if (w == 32) {
+ do {
+ __m256i s[4];
+ s[0] = _mm256_loadu_si256((__m256i *)(src + 0 * 16));
+ s[1] = _mm256_loadu_si256((__m256i *)(src + 1 * 16));
+ src += src_stride;
+ s[2] = _mm256_loadu_si256((__m256i *)(src + 0 * 16));
+ s[3] = _mm256_loadu_si256((__m256i *)(src + 1 * 16));
+ src += src_stride;
+ _mm256_storeu_si256((__m256i *)(dst + 0 * 16), s[0]);
+ _mm256_storeu_si256((__m256i *)(dst + 1 * 16), s[1]);
+ dst += dst_stride;
+ _mm256_storeu_si256((__m256i *)(dst + 0 * 16), s[2]);
+ _mm256_storeu_si256((__m256i *)(dst + 1 * 16), s[3]);
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ } else if (w == 64) {
+ do {
+ copy_64(src, dst);
+ src += src_stride;
+ dst += dst_stride;
+ copy_64(src, dst);
+ src += src_stride;
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ } else {
+ do {
+ copy_128(src, dst);
+ src += src_stride;
+ dst += dst_stride;
+ copy_128(src, dst);
+ src += src_stride;
+ dst += dst_stride;
+ h -= 2;
+ } while (h);
+ }
+}
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