61 строка
2.3 KiB
C
61 строка
2.3 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <stdlib.h>
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#include "./macros_msa.h"
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void aom_plane_add_noise_msa(uint8_t *start_ptr, char *noise,
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char blackclamp[16], char whiteclamp[16],
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char bothclamp[16], uint32_t width,
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uint32_t height, int32_t pitch) {
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uint32_t i, j;
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for (i = 0; i < height / 2; ++i) {
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uint8_t *pos0_ptr = start_ptr + (2 * i) * pitch;
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int8_t *ref0_ptr = (int8_t *)(noise + (rand() & 0xff));
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uint8_t *pos1_ptr = start_ptr + (2 * i + 1) * pitch;
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int8_t *ref1_ptr = (int8_t *)(noise + (rand() & 0xff));
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for (j = width / 16; j--;) {
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v16i8 temp00_s, temp01_s;
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v16u8 temp00, temp01, black_clamp, white_clamp;
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v16u8 pos0, ref0, pos1, ref1;
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v16i8 const127 = __msa_ldi_b(127);
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pos0 = LD_UB(pos0_ptr);
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ref0 = LD_UB(ref0_ptr);
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pos1 = LD_UB(pos1_ptr);
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ref1 = LD_UB(ref1_ptr);
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black_clamp = (v16u8)__msa_fill_b(blackclamp[0]);
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white_clamp = (v16u8)__msa_fill_b(whiteclamp[0]);
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temp00 = (pos0 < black_clamp);
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pos0 = __msa_bmnz_v(pos0, black_clamp, temp00);
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temp01 = (pos1 < black_clamp);
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pos1 = __msa_bmnz_v(pos1, black_clamp, temp01);
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XORI_B2_128_UB(pos0, pos1);
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temp00_s = __msa_adds_s_b((v16i8)white_clamp, const127);
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temp00 = (v16u8)(temp00_s < pos0);
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pos0 = (v16u8)__msa_bmnz_v((v16u8)pos0, (v16u8)temp00_s, temp00);
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temp01_s = __msa_adds_s_b((v16i8)white_clamp, const127);
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temp01 = (temp01_s < pos1);
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pos1 = (v16u8)__msa_bmnz_v((v16u8)pos1, (v16u8)temp01_s, temp01);
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XORI_B2_128_UB(pos0, pos1);
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pos0 += ref0;
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ST_UB(pos0, pos0_ptr);
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pos1 += ref1;
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ST_UB(pos1, pos1_ptr);
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pos0_ptr += 16;
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pos1_ptr += 16;
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ref0_ptr += 16;
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ref1_ptr += 16;
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}
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}
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}
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