diff options
Diffstat (limited to 'third_party/aom/aom_dsp/x86/aom_highbd_convolve_hip_ssse3.c')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/aom_highbd_convolve_hip_ssse3.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/aom_highbd_convolve_hip_ssse3.c b/third_party/aom/aom_dsp/x86/aom_highbd_convolve_hip_ssse3.c new file mode 100644 index 000000000..74ce80e50 --- /dev/null +++ b/third_party/aom/aom_dsp/x86/aom_highbd_convolve_hip_ssse3.c @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2016, 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 <tmmintrin.h> +#include <assert.h> + +#include "./aom_dsp_rtcd.h" +#include "aom_dsp/aom_convolve.h" +#include "aom_dsp/aom_dsp_common.h" +#include "aom_dsp/aom_filter.h" + +#if EXTRAPREC_BITS > 2 +#error "Highbd high-prec convolve filter only supports EXTRAPREC_BITS <= 2" +#error "(need to use 32-bit intermediates for EXTRAPREC_BITS > 2)" +#endif + +void aom_highbd_convolve8_add_src_hip_ssse3( + const uint8_t *src8, ptrdiff_t src_stride, uint8_t *dst8, + ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, + const int16_t *filter_y, int y_step_q4, int w, int h, int bd) { + assert(x_step_q4 == 16 && y_step_q4 == 16); + assert(!(w & 7)); + (void)x_step_q4; + (void)y_step_q4; + + const uint16_t *const src = CONVERT_TO_SHORTPTR(src8); + uint16_t *const dst = CONVERT_TO_SHORTPTR(dst8); + + uint16_t temp[(MAX_SB_SIZE + SUBPEL_TAPS - 1) * MAX_SB_SIZE]; + int intermediate_height = h + SUBPEL_TAPS - 1; + int i, j; + const int center_tap = ((SUBPEL_TAPS - 1) / 2); + const uint16_t *const src_ptr = src - center_tap * src_stride - center_tap; + + const __m128i zero = _mm_setzero_si128(); + // Add an offset to account for the "add_src" part of the convolve function. + const __m128i offset = _mm_insert_epi16(zero, 1 << FILTER_BITS, 3); + + /* Horizontal filter */ + { + const __m128i coeffs_x = + _mm_add_epi16(_mm_loadu_si128((__m128i *)filter_x), offset); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x); + + // coeffs 0 1 0 1 0 1 0 1 + const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0); + // coeffs 2 3 2 3 2 3 2 3 + const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0); + // coeffs 4 5 4 5 4 5 4 5 + const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1); + // coeffs 6 7 6 7 6 7 6 7 + const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1); + + const __m128i round_const = + _mm_set1_epi32((1 << (FILTER_BITS - EXTRAPREC_BITS - 1)) + + (1 << (bd + FILTER_BITS - 1))); + + for (i = 0; i < intermediate_height; ++i) { + for (j = 0; j < w; j += 8) { + const __m128i data = + _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]); + const __m128i data2 = + _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j + 8]); + + // Filter even-index pixels + const __m128i res_0 = _mm_madd_epi16(data, coeff_01); + const __m128i res_2 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 4), coeff_23); + const __m128i res_4 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 8), coeff_45); + const __m128i res_6 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 12), coeff_67); + + __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4), + _mm_add_epi32(res_2, res_6)); + res_even = _mm_srai_epi32(_mm_add_epi32(res_even, round_const), + FILTER_BITS - EXTRAPREC_BITS); + + // Filter odd-index pixels + const __m128i res_1 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 2), coeff_01); + const __m128i res_3 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 6), coeff_23); + const __m128i res_5 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 10), coeff_45); + const __m128i res_7 = + _mm_madd_epi16(_mm_alignr_epi8(data2, data, 14), coeff_67); + + __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5), + _mm_add_epi32(res_3, res_7)); + res_odd = _mm_srai_epi32(_mm_add_epi32(res_odd, round_const), + FILTER_BITS - EXTRAPREC_BITS); + + // Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7 + const __m128i maxval = _mm_set1_epi16((EXTRAPREC_CLAMP_LIMIT(bd)) - 1); + __m128i res = _mm_packs_epi32(res_even, res_odd); + res = _mm_min_epi16(_mm_max_epi16(res, zero), maxval); + _mm_storeu_si128((__m128i *)&temp[i * MAX_SB_SIZE + j], res); + } + } + } + + /* Vertical filter */ + { + const __m128i coeffs_y = + _mm_add_epi16(_mm_loadu_si128((__m128i *)filter_y), offset); + + // coeffs 0 1 0 1 2 3 2 3 + const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y); + // coeffs 4 5 4 5 6 7 6 7 + const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y); + + // coeffs 0 1 0 1 0 1 0 1 + const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0); + // coeffs 2 3 2 3 2 3 2 3 + const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0); + // coeffs 4 5 4 5 4 5 4 5 + const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1); + // coeffs 6 7 6 7 6 7 6 7 + const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1); + + const __m128i round_const = + _mm_set1_epi32((1 << (FILTER_BITS + EXTRAPREC_BITS - 1)) - + (1 << (bd + FILTER_BITS + EXTRAPREC_BITS - 1))); + + for (i = 0; i < h; ++i) { + for (j = 0; j < w; j += 8) { + // Filter even-index pixels + const uint16_t *data = &temp[i * MAX_SB_SIZE + j]; + const __m128i src_0 = + _mm_unpacklo_epi16(*(__m128i *)(data + 0 * MAX_SB_SIZE), + *(__m128i *)(data + 1 * MAX_SB_SIZE)); + const __m128i src_2 = + _mm_unpacklo_epi16(*(__m128i *)(data + 2 * MAX_SB_SIZE), + *(__m128i *)(data + 3 * MAX_SB_SIZE)); + const __m128i src_4 = + _mm_unpacklo_epi16(*(__m128i *)(data + 4 * MAX_SB_SIZE), + *(__m128i *)(data + 5 * MAX_SB_SIZE)); + const __m128i src_6 = + _mm_unpacklo_epi16(*(__m128i *)(data + 6 * MAX_SB_SIZE), + *(__m128i *)(data + 7 * MAX_SB_SIZE)); + + const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01); + const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23); + const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45); + const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67); + + const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2), + _mm_add_epi32(res_4, res_6)); + + // Filter odd-index pixels + const __m128i src_1 = + _mm_unpackhi_epi16(*(__m128i *)(data + 0 * MAX_SB_SIZE), + *(__m128i *)(data + 1 * MAX_SB_SIZE)); + const __m128i src_3 = + _mm_unpackhi_epi16(*(__m128i *)(data + 2 * MAX_SB_SIZE), + *(__m128i *)(data + 3 * MAX_SB_SIZE)); + const __m128i src_5 = + _mm_unpackhi_epi16(*(__m128i *)(data + 4 * MAX_SB_SIZE), + *(__m128i *)(data + 5 * MAX_SB_SIZE)); + const __m128i src_7 = + _mm_unpackhi_epi16(*(__m128i *)(data + 6 * MAX_SB_SIZE), + *(__m128i *)(data + 7 * MAX_SB_SIZE)); + + const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01); + const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23); + const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45); + const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67); + + const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3), + _mm_add_epi32(res_5, res_7)); + + // Rearrange pixels back into the order 0 ... 7 + const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd); + const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd); + + const __m128i res_lo_round = _mm_srai_epi32( + _mm_add_epi32(res_lo, round_const), FILTER_BITS + EXTRAPREC_BITS); + const __m128i res_hi_round = _mm_srai_epi32( + _mm_add_epi32(res_hi, round_const), FILTER_BITS + EXTRAPREC_BITS); + + const __m128i maxval = _mm_set1_epi16((1 << bd) - 1); + __m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round); + res_16bit = _mm_min_epi16(_mm_max_epi16(res_16bit, zero), maxval); + + __m128i *const p = (__m128i *)&dst[i * dst_stride + j]; + _mm_storeu_si128(p, res_16bit); + } + } + } +} |