diff options
Diffstat (limited to 'media/libaom/src/aom_dsp/x86/highbd_quantize_intrin_sse2.c')
| -rw-r--r-- | media/libaom/src/aom_dsp/x86/highbd_quantize_intrin_sse2.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/media/libaom/src/aom_dsp/x86/highbd_quantize_intrin_sse2.c b/media/libaom/src/aom_dsp/x86/highbd_quantize_intrin_sse2.c new file mode 100644 index 000000000..58e5f98e5 --- /dev/null +++ b/media/libaom/src/aom_dsp/x86/highbd_quantize_intrin_sse2.c @@ -0,0 +1,148 @@ +/* + * 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 <emmintrin.h> + +#include "aom_dsp/aom_dsp_common.h" +#include "aom_mem/aom_mem.h" +#include "aom_ports/mem.h" + +void aom_highbd_quantize_b_sse2(const tran_low_t *coeff_ptr, intptr_t count, + const int16_t *zbin_ptr, + const int16_t *round_ptr, + const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, + tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + int i, j, non_zero_regs = (int)count / 4, eob_i = -1; + __m128i zbins[2]; + __m128i nzbins[2]; + + zbins[0] = _mm_set_epi32((int)zbin_ptr[1], (int)zbin_ptr[1], (int)zbin_ptr[1], + (int)zbin_ptr[0]); + zbins[1] = _mm_set1_epi32((int)zbin_ptr[1]); + + nzbins[0] = _mm_setzero_si128(); + nzbins[1] = _mm_setzero_si128(); + nzbins[0] = _mm_sub_epi32(nzbins[0], zbins[0]); + nzbins[1] = _mm_sub_epi32(nzbins[1], zbins[1]); + + (void)scan; + + memset(qcoeff_ptr, 0, count * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, count * sizeof(*dqcoeff_ptr)); + + // Pre-scan pass + for (i = ((int)count / 4) - 1; i >= 0; i--) { + __m128i coeffs, cmp1, cmp2; + int test; + coeffs = _mm_load_si128((const __m128i *)(coeff_ptr + i * 4)); + cmp1 = _mm_cmplt_epi32(coeffs, zbins[i != 0]); + cmp2 = _mm_cmpgt_epi32(coeffs, nzbins[i != 0]); + cmp1 = _mm_and_si128(cmp1, cmp2); + test = _mm_movemask_epi8(cmp1); + if (test == 0xffff) + non_zero_regs--; + else + break; + } + + // Quantization pass: + for (i = 0; i < non_zero_regs; i++) { + __m128i coeffs, coeffs_sign, tmp1, tmp2; + int test; + int abs_coeff[4]; + int coeff_sign[4]; + + coeffs = _mm_load_si128((const __m128i *)(coeff_ptr + i * 4)); + coeffs_sign = _mm_srai_epi32(coeffs, 31); + coeffs = _mm_sub_epi32(_mm_xor_si128(coeffs, coeffs_sign), coeffs_sign); + tmp1 = _mm_cmpgt_epi32(coeffs, zbins[i != 0]); + tmp2 = _mm_cmpeq_epi32(coeffs, zbins[i != 0]); + tmp1 = _mm_or_si128(tmp1, tmp2); + test = _mm_movemask_epi8(tmp1); + _mm_storeu_si128((__m128i *)abs_coeff, coeffs); + _mm_storeu_si128((__m128i *)coeff_sign, coeffs_sign); + + for (j = 0; j < 4; j++) { + if (test & (1 << (4 * j))) { + int k = 4 * i + j; + const int64_t tmp3 = abs_coeff[j] + round_ptr[k != 0]; + const int64_t tmp4 = ((tmp3 * quant_ptr[k != 0]) >> 16) + tmp3; + const uint32_t abs_qcoeff = + (uint32_t)((tmp4 * quant_shift_ptr[k != 0]) >> 16); + qcoeff_ptr[k] = (int)(abs_qcoeff ^ coeff_sign[j]) - coeff_sign[j]; + dqcoeff_ptr[k] = qcoeff_ptr[k] * dequant_ptr[k != 0]; + if (abs_qcoeff) eob_i = iscan[k] > eob_i ? iscan[k] : eob_i; + } + } + } + *eob_ptr = eob_i + 1; +} + +void aom_highbd_quantize_b_32x32_sse2( + const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr, + const int16_t *round_ptr, const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + __m128i zbins[2]; + __m128i nzbins[2]; + int idx = 0; + int idx_arr[1024]; + int i, eob = -1; + const int zbin0_tmp = ROUND_POWER_OF_TWO(zbin_ptr[0], 1); + const int zbin1_tmp = ROUND_POWER_OF_TWO(zbin_ptr[1], 1); + (void)scan; + zbins[0] = _mm_set_epi32(zbin1_tmp, zbin1_tmp, zbin1_tmp, zbin0_tmp); + zbins[1] = _mm_set1_epi32(zbin1_tmp); + + nzbins[0] = _mm_setzero_si128(); + nzbins[1] = _mm_setzero_si128(); + nzbins[0] = _mm_sub_epi32(nzbins[0], zbins[0]); + nzbins[1] = _mm_sub_epi32(nzbins[1], zbins[1]); + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + // Pre-scan pass + for (i = 0; i < n_coeffs / 4; i++) { + __m128i coeffs, cmp1, cmp2; + int test; + coeffs = _mm_load_si128((const __m128i *)(coeff_ptr + i * 4)); + cmp1 = _mm_cmplt_epi32(coeffs, zbins[i != 0]); + cmp2 = _mm_cmpgt_epi32(coeffs, nzbins[i != 0]); + cmp1 = _mm_and_si128(cmp1, cmp2); + test = _mm_movemask_epi8(cmp1); + if (!(test & 0xf)) idx_arr[idx++] = i * 4; + if (!(test & 0xf0)) idx_arr[idx++] = i * 4 + 1; + if (!(test & 0xf00)) idx_arr[idx++] = i * 4 + 2; + if (!(test & 0xf000)) idx_arr[idx++] = i * 4 + 3; + } + + // Quantization pass: only process the coefficients selected in + // pre-scan pass. Note: idx can be zero. + for (i = 0; i < idx; i++) { + const int rc = idx_arr[i]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + const int64_t tmp1 = abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1); + const int64_t tmp2 = ((tmp1 * quant_ptr[rc != 0]) >> 16) + tmp1; + const uint32_t abs_qcoeff = + (uint32_t)((tmp2 * quant_shift_ptr[rc != 0]) >> 15); + qcoeff_ptr[rc] = (int)(abs_qcoeff ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2; + if (abs_qcoeff) eob = iscan[idx_arr[i]] > eob ? iscan[idx_arr[i]] : eob; + } + *eob_ptr = eob + 1; +} |