mirror of
https://chromium.googlesource.com/libyuv/libyuv
synced 2026-05-01 03:19:18 +08:00
62c19d062d
Removed all SSE functions, macros, dispatching logic, and related unit tests across the repository to reduce code size and complexity. Left cpuid detection intact. Supported architectures like AVX2, NEON, SVE, etc. are unaffected. R=rrwinterton@gmail.com Bug: None Test: Build and run libyuv_unittest Change-Id: Id19608dba35b79c4c8fc31f920a6a968883d300f
149 lines
4.1 KiB
C++
149 lines
4.1 KiB
C++
/*
|
|
* Copyright 2012 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"
|
|
|
|
#if defined(_MSC_VER)
|
|
#include <intrin.h> // For __popcnt
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
namespace libyuv {
|
|
extern "C" {
|
|
#endif
|
|
|
|
// This module is for 32 bit Visual C x86
|
|
#if !defined(LIBYUV_DISABLE_X86) && defined(_MSC_VER) && defined(_M_IX86) && \
|
|
(!defined(__clang__) || defined(LIBYUV_ENABLE_ROWWIN))
|
|
|
|
|
|
|
|
__declspec(naked) uint32_t
|
|
|
|
|
|
#ifdef HAS_SUMSQUAREERROR_AVX2
|
|
// C4752: found Intel(R) Advanced Vector Extensions; consider using /arch:AVX.
|
|
#pragma warning(disable : 4752)
|
|
__declspec(naked) uint32_t
|
|
SumSquareError_AVX2(const uint8_t* src_a, const uint8_t* src_b, int count) {
|
|
__asm {
|
|
mov eax, [esp + 4] // src_a
|
|
mov edx, [esp + 8] // src_b
|
|
mov ecx, [esp + 12] // count
|
|
vpxor ymm0, ymm0, ymm0 // sum
|
|
vpxor ymm5, ymm5, ymm5 // constant 0 for unpck
|
|
sub edx, eax
|
|
|
|
wloop:
|
|
vmovdqu ymm1, [eax]
|
|
vmovdqu ymm2, [eax + edx]
|
|
lea eax, [eax + 32]
|
|
vpsubusb ymm3, ymm1, ymm2 // abs difference trick
|
|
vpsubusb ymm2, ymm2, ymm1
|
|
vpor ymm1, ymm2, ymm3
|
|
vpunpcklbw ymm2, ymm1, ymm5 // u16. mutates order.
|
|
vpunpckhbw ymm1, ymm1, ymm5
|
|
vpmaddwd ymm2, ymm2, ymm2 // square + hadd to u32.
|
|
vpmaddwd ymm1, ymm1, ymm1
|
|
vpaddd ymm0, ymm0, ymm1
|
|
vpaddd ymm0, ymm0, ymm2
|
|
sub ecx, 32
|
|
jg wloop
|
|
|
|
vpshufd ymm1, ymm0, 0xee // 3, 2 + 1, 0 both lanes.
|
|
vpaddd ymm0, ymm0, ymm1
|
|
vpshufd ymm1, ymm0, 0x01 // 1 + 0 both lanes.
|
|
vpaddd ymm0, ymm0, ymm1
|
|
vpermq ymm1, ymm0, 0x02 // high + low lane.
|
|
vpaddd ymm0, ymm0, ymm1
|
|
vmovd eax, xmm0
|
|
vzeroupper
|
|
ret
|
|
}
|
|
}
|
|
#endif // HAS_SUMSQUAREERROR_AVX2
|
|
|
|
uvec32 kHash16x33 = {0x92d9e201, 0, 0, 0}; // 33 ^ 16
|
|
uvec32 kHashMul0 = {
|
|
0x0c3525e1, // 33 ^ 15
|
|
0xa3476dc1, // 33 ^ 14
|
|
0x3b4039a1, // 33 ^ 13
|
|
0x4f5f0981, // 33 ^ 12
|
|
};
|
|
uvec32 kHashMul1 = {
|
|
0x30f35d61, // 33 ^ 11
|
|
0x855cb541, // 33 ^ 10
|
|
0x040a9121, // 33 ^ 9
|
|
0x747c7101, // 33 ^ 8
|
|
};
|
|
uvec32 kHashMul2 = {
|
|
0xec41d4e1, // 33 ^ 7
|
|
0x4cfa3cc1, // 33 ^ 6
|
|
0x025528a1, // 33 ^ 5
|
|
0x00121881, // 33 ^ 4
|
|
};
|
|
uvec32 kHashMul3 = {
|
|
0x00008c61, // 33 ^ 3
|
|
0x00000441, // 33 ^ 2
|
|
0x00000021, // 33 ^ 1
|
|
0x00000001, // 33 ^ 0
|
|
};
|
|
|
|
__declspec(naked) uint32_t
|
|
|
|
|
|
// Visual C 2012 required for AVX2.
|
|
#ifdef HAS_HASHDJB2_AVX2
|
|
__declspec(naked) uint32_t
|
|
HashDjb2_AVX2(const uint8_t* src, int count, uint32_t seed) {
|
|
__asm {
|
|
mov eax, [esp + 4] // src
|
|
mov ecx, [esp + 8] // count
|
|
vmovd xmm0, [esp + 12] // seed
|
|
|
|
wloop:
|
|
vpmovzxbd xmm3, [eax] // src[0-3]
|
|
vpmulld xmm0, xmm0, xmmword ptr kHash16x33 // hash *= 33 ^ 16
|
|
vpmovzxbd xmm4, [eax + 4] // src[4-7]
|
|
vpmulld xmm3, xmm3, xmmword ptr kHashMul0
|
|
vpmovzxbd xmm2, [eax + 8] // src[8-11]
|
|
vpmulld xmm4, xmm4, xmmword ptr kHashMul1
|
|
vpmovzxbd xmm1, [eax + 12] // src[12-15]
|
|
vpmulld xmm2, xmm2, xmmword ptr kHashMul2
|
|
lea eax, [eax + 16]
|
|
vpmulld xmm1, xmm1, xmmword ptr kHashMul3
|
|
vpaddd xmm3, xmm3, xmm4 // add 16 results
|
|
vpaddd xmm1, xmm1, xmm2
|
|
vpaddd xmm1, xmm1, xmm3
|
|
vpshufd xmm2, xmm1, 0x0e // upper 2 dwords
|
|
vpaddd xmm1, xmm1,xmm2
|
|
vpshufd xmm2, xmm1, 0x01
|
|
vpaddd xmm1, xmm1, xmm2
|
|
vpaddd xmm0, xmm0, xmm1
|
|
sub ecx, 16
|
|
jg wloop
|
|
|
|
vmovd eax, xmm0 // return hash
|
|
vzeroupper
|
|
ret
|
|
}
|
|
}
|
|
#endif // HAS_HASHDJB2_AVX2
|
|
|
|
#endif // !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86)
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
} // namespace libyuv
|
|
#endif
|