mirror of
https://github.com/DrKLO/Telegram.git
synced 2024-12-23 15:00:50 +01:00
97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/*
|
|
* Copyright 2017 The LibYuv Project Authors. All rights reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "libyuv/basic_types.h"
|
|
|
|
#include "libyuv/compare_row.h"
|
|
#include "libyuv/row.h"
|
|
|
|
// This module is for GCC MSA
|
|
#if !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
|
|
#include "libyuv/macros_msa.h"
|
|
|
|
#ifdef __cplusplus
|
|
namespace libyuv {
|
|
extern "C" {
|
|
#endif
|
|
|
|
uint32_t HammingDistance_MSA(const uint8_t* src_a,
|
|
const uint8_t* src_b,
|
|
int count) {
|
|
uint32_t diff = 0u;
|
|
int i;
|
|
v16u8 src0, src1, src2, src3;
|
|
v2i64 vec0 = {0}, vec1 = {0};
|
|
|
|
for (i = 0; i < count; i += 32) {
|
|
src0 = (v16u8)__msa_ld_b((v16i8*)src_a, 0);
|
|
src1 = (v16u8)__msa_ld_b((v16i8*)src_a, 16);
|
|
src2 = (v16u8)__msa_ld_b((v16i8*)src_b, 0);
|
|
src3 = (v16u8)__msa_ld_b((v16i8*)src_b, 16);
|
|
src0 ^= src2;
|
|
src1 ^= src3;
|
|
vec0 += __msa_pcnt_d((v2i64)src0);
|
|
vec1 += __msa_pcnt_d((v2i64)src1);
|
|
src_a += 32;
|
|
src_b += 32;
|
|
}
|
|
|
|
vec0 += vec1;
|
|
diff = (uint32_t)__msa_copy_u_w((v4i32)vec0, 0);
|
|
diff += (uint32_t)__msa_copy_u_w((v4i32)vec0, 2);
|
|
return diff;
|
|
}
|
|
|
|
uint32_t SumSquareError_MSA(const uint8_t* src_a,
|
|
const uint8_t* src_b,
|
|
int count) {
|
|
uint32_t sse = 0u;
|
|
int i;
|
|
v16u8 src0, src1, src2, src3;
|
|
v8i16 vec0, vec1, vec2, vec3;
|
|
v4i32 reg0 = {0}, reg1 = {0}, reg2 = {0}, reg3 = {0};
|
|
v2i64 tmp0;
|
|
|
|
for (i = 0; i < count; i += 32) {
|
|
src0 = (v16u8)__msa_ld_b((v16i8*)src_a, 0);
|
|
src1 = (v16u8)__msa_ld_b((v16i8*)src_a, 16);
|
|
src2 = (v16u8)__msa_ld_b((v16i8*)src_b, 0);
|
|
src3 = (v16u8)__msa_ld_b((v16i8*)src_b, 16);
|
|
vec0 = (v8i16)__msa_ilvr_b((v16i8)src2, (v16i8)src0);
|
|
vec1 = (v8i16)__msa_ilvl_b((v16i8)src2, (v16i8)src0);
|
|
vec2 = (v8i16)__msa_ilvr_b((v16i8)src3, (v16i8)src1);
|
|
vec3 = (v8i16)__msa_ilvl_b((v16i8)src3, (v16i8)src1);
|
|
vec0 = __msa_hsub_u_h((v16u8)vec0, (v16u8)vec0);
|
|
vec1 = __msa_hsub_u_h((v16u8)vec1, (v16u8)vec1);
|
|
vec2 = __msa_hsub_u_h((v16u8)vec2, (v16u8)vec2);
|
|
vec3 = __msa_hsub_u_h((v16u8)vec3, (v16u8)vec3);
|
|
reg0 = __msa_dpadd_s_w(reg0, vec0, vec0);
|
|
reg1 = __msa_dpadd_s_w(reg1, vec1, vec1);
|
|
reg2 = __msa_dpadd_s_w(reg2, vec2, vec2);
|
|
reg3 = __msa_dpadd_s_w(reg3, vec3, vec3);
|
|
src_a += 32;
|
|
src_b += 32;
|
|
}
|
|
|
|
reg0 += reg1;
|
|
reg2 += reg3;
|
|
reg0 += reg2;
|
|
tmp0 = __msa_hadd_s_d(reg0, reg0);
|
|
sse = (uint32_t)__msa_copy_u_w((v4i32)tmp0, 0);
|
|
sse += (uint32_t)__msa_copy_u_w((v4i32)tmp0, 2);
|
|
return sse;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
} // namespace libyuv
|
|
#endif
|
|
|
|
#endif // !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
|