98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/*
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* Copyright 2017 The LibYuv Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "libyuv/basic_types.h"
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#include "libyuv/compare_row.h"
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#include "libyuv/row.h"
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// This module is for GCC MSA
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#if !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
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#include "libyuv/macros_msa.h"
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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uint32_t HammingDistance_MSA(const uint8_t* src_a,
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const uint8_t* src_b,
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int count) {
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uint32_t diff = 0u;
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int i;
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v16u8 src0, src1, src2, src3;
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v2i64 vec0 = {0}, vec1 = {0};
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for (i = 0; i < count; i += 32) {
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src0 = (v16u8)__msa_ld_b((v16i8*)src_a, 0);
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src1 = (v16u8)__msa_ld_b((v16i8*)src_a, 16);
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src2 = (v16u8)__msa_ld_b((v16i8*)src_b, 0);
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src3 = (v16u8)__msa_ld_b((v16i8*)src_b, 16);
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src0 ^= src2;
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src1 ^= src3;
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vec0 += __msa_pcnt_d((v2i64)src0);
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vec1 += __msa_pcnt_d((v2i64)src1);
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src_a += 32;
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src_b += 32;
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}
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vec0 += vec1;
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diff = (uint32_t)__msa_copy_u_w((v4i32)vec0, 0);
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diff += (uint32_t)__msa_copy_u_w((v4i32)vec0, 2);
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return diff;
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}
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uint32_t SumSquareError_MSA(const uint8_t* src_a,
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const uint8_t* src_b,
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int count) {
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uint32_t sse = 0u;
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int i;
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v16u8 src0, src1, src2, src3;
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v8i16 vec0, vec1, vec2, vec3;
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v4i32 reg0 = {0}, reg1 = {0}, reg2 = {0}, reg3 = {0};
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v2i64 tmp0;
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for (i = 0; i < count; i += 32) {
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src0 = (v16u8)__msa_ld_b((v16i8*)src_a, 0);
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src1 = (v16u8)__msa_ld_b((v16i8*)src_a, 16);
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src2 = (v16u8)__msa_ld_b((v16i8*)src_b, 0);
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src3 = (v16u8)__msa_ld_b((v16i8*)src_b, 16);
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vec0 = (v8i16)__msa_ilvr_b((v16i8)src2, (v16i8)src0);
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vec1 = (v8i16)__msa_ilvl_b((v16i8)src2, (v16i8)src0);
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vec2 = (v8i16)__msa_ilvr_b((v16i8)src3, (v16i8)src1);
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vec3 = (v8i16)__msa_ilvl_b((v16i8)src3, (v16i8)src1);
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vec0 = __msa_hsub_u_h((v16u8)vec0, (v16u8)vec0);
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vec1 = __msa_hsub_u_h((v16u8)vec1, (v16u8)vec1);
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vec2 = __msa_hsub_u_h((v16u8)vec2, (v16u8)vec2);
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vec3 = __msa_hsub_u_h((v16u8)vec3, (v16u8)vec3);
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reg0 = __msa_dpadd_s_w(reg0, vec0, vec0);
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reg1 = __msa_dpadd_s_w(reg1, vec1, vec1);
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reg2 = __msa_dpadd_s_w(reg2, vec2, vec2);
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reg3 = __msa_dpadd_s_w(reg3, vec3, vec3);
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src_a += 32;
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src_b += 32;
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}
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reg0 += reg1;
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reg2 += reg3;
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reg0 += reg2;
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tmp0 = __msa_hadd_s_d(reg0, reg0);
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sse = (uint32_t)__msa_copy_u_w((v4i32)tmp0, 0);
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sse += (uint32_t)__msa_copy_u_w((v4i32)tmp0, 2);
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return sse;
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}
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#ifdef __cplusplus
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} // extern "C"
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} // namespace libyuv
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#endif
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#endif // !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
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