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Update sad4d x86 functions

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Speed change is marginal.

Change-Id: I4d548e9763ce43bd546f19132202f7a8509a32bf
This commit is contained in:
Linfeng Zhang 2018-03-26 13:06:09 -07:00
parent debd86ec82
commit 39de45d3cc
2 changed files with 90 additions and 124 deletions
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4
test/sad_test.cc
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@ -85,7 +85,7 @@ class SADTestBase : public ::testing::TestWithParam<ParamType> {
#endif // CONFIG_VP9_HIGHBITDEPTH #endif // CONFIG_VP9_HIGHBITDEPTH
} }
mask_ = (1 << bit_depth_) - 1; mask_ = (1 << bit_depth_) - 1;
source_stride_ = (params_.width + 31) & ~31; source_stride_ = (params_.width + 63) & ~63;
reference_stride_ = params_.width * 2; reference_stride_ = params_.width * 2;
rnd_.Reset(ACMRandom::DeterministicSeed()); rnd_.Reset(ACMRandom::DeterministicSeed());
} }
@ -109,7 +109,7 @@ class SADTestBase : public ::testing::TestWithParam<ParamType> {
protected: protected:
// Handle blocks up to 4 blocks 64x64 with stride up to 128 // Handle blocks up to 4 blocks 64x64 with stride up to 128
static const int kDataAlignment = 16; static const int kDataAlignment = 32;
static const int kDataBlockSize = 64 * 128; static const int kDataBlockSize = 64 * 128;
static const int kDataBufferSize = 4 * kDataBlockSize; static const int kDataBufferSize = 4 * kDataBlockSize;

210
vpx_dsp/x86/sad4d_avx2.c
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@ -11,154 +11,120 @@
#include "./vpx_dsp_rtcd.h" #include "./vpx_dsp_rtcd.h"
#include "vpx/vpx_integer.h" #include "vpx/vpx_integer.h"
static INLINE void calc_final(const __m256i *const sums /*[4]*/,
uint32_t res[4]) {
const __m256i t0 = _mm256_hadd_epi32(sums[0], sums[1]);
const __m256i t1 = _mm256_hadd_epi32(sums[2], sums[3]);
const __m256i t2 = _mm256_hadd_epi32(t0, t1);
const __m128i sum = _mm_add_epi32(_mm256_castsi256_si128(t2),
_mm256_extractf128_si256(t2, 1));
_mm_storeu_si128((__m128i *)res, sum);
}
void vpx_sad32x32x4d_avx2(const uint8_t *src, int src_stride, void vpx_sad32x32x4d_avx2(const uint8_t *src, int src_stride,
const uint8_t *const ref[4], int ref_stride, const uint8_t *const ref[4], int ref_stride,
uint32_t res[4]) { uint32_t res[4]) {
__m256i src_reg, ref0_reg, ref1_reg, ref2_reg, ref3_reg;
__m256i sum_ref0, sum_ref1, sum_ref2, sum_ref3;
__m256i sum_mlow, sum_mhigh;
int i; int i;
const uint8_t *ref0, *ref1, *ref2, *ref3; const uint8_t *refs[4];
__m256i sums[4];
refs[0] = ref[0];
refs[1] = ref[1];
refs[2] = ref[2];
refs[3] = ref[3];
sums[0] = _mm256_setzero_si256();
sums[1] = _mm256_setzero_si256();
sums[2] = _mm256_setzero_si256();
sums[3] = _mm256_setzero_si256();
ref0 = ref[0];
ref1 = ref[1];
ref2 = ref[2];
ref3 = ref[3];
sum_ref0 = _mm256_set1_epi16(0);
sum_ref1 = _mm256_set1_epi16(0);
sum_ref2 = _mm256_set1_epi16(0);
sum_ref3 = _mm256_set1_epi16(0);
for (i = 0; i < 32; i++) { for (i = 0; i < 32; i++) {
__m256i r[4];
// load src and all refs // load src and all refs
src_reg = _mm256_loadu_si256((const __m256i *)src); const __m256i s = _mm256_load_si256((const __m256i *)src);
ref0_reg = _mm256_loadu_si256((const __m256i *)ref0); r[0] = _mm256_loadu_si256((const __m256i *)refs[0]);
ref1_reg = _mm256_loadu_si256((const __m256i *)ref1); r[1] = _mm256_loadu_si256((const __m256i *)refs[1]);
ref2_reg = _mm256_loadu_si256((const __m256i *)ref2); r[2] = _mm256_loadu_si256((const __m256i *)refs[2]);
ref3_reg = _mm256_loadu_si256((const __m256i *)ref3); r[3] = _mm256_loadu_si256((const __m256i *)refs[3]);
// sum of the absolute differences between every ref-i to src // sum of the absolute differences between every ref-i to src
ref0_reg = _mm256_sad_epu8(ref0_reg, src_reg); r[0] = _mm256_sad_epu8(r[0], s);
ref1_reg = _mm256_sad_epu8(ref1_reg, src_reg); r[1] = _mm256_sad_epu8(r[1], s);
ref2_reg = _mm256_sad_epu8(ref2_reg, src_reg); r[2] = _mm256_sad_epu8(r[2], s);
ref3_reg = _mm256_sad_epu8(ref3_reg, src_reg); r[3] = _mm256_sad_epu8(r[3], s);
// sum every ref-i // sum every ref-i
sum_ref0 = _mm256_add_epi32(sum_ref0, ref0_reg); sums[0] = _mm256_add_epi32(sums[0], r[0]);
sum_ref1 = _mm256_add_epi32(sum_ref1, ref1_reg); sums[1] = _mm256_add_epi32(sums[1], r[1]);
sum_ref2 = _mm256_add_epi32(sum_ref2, ref2_reg); sums[2] = _mm256_add_epi32(sums[2], r[2]);
sum_ref3 = _mm256_add_epi32(sum_ref3, ref3_reg); sums[3] = _mm256_add_epi32(sums[3], r[3]);
src += src_stride; src += src_stride;
ref0 += ref_stride; refs[0] += ref_stride;
ref1 += ref_stride; refs[1] += ref_stride;
ref2 += ref_stride; refs[2] += ref_stride;
ref3 += ref_stride; refs[3] += ref_stride;
} }
{
__m128i sum;
// in sum_ref-i the result is saved in the first 4 bytes
// the other 4 bytes are zeroed.
// sum_ref1 and sum_ref3 are shifted left by 4 bytes
sum_ref1 = _mm256_slli_si256(sum_ref1, 4);
sum_ref3 = _mm256_slli_si256(sum_ref3, 4);
// merge sum_ref0 and sum_ref1 also sum_ref2 and sum_ref3 calc_final(sums, res);
sum_ref0 = _mm256_or_si256(sum_ref0, sum_ref1);
sum_ref2 = _mm256_or_si256(sum_ref2, sum_ref3);
// merge every 64 bit from each sum_ref-i
sum_mlow = _mm256_unpacklo_epi64(sum_ref0, sum_ref2);
sum_mhigh = _mm256_unpackhi_epi64(sum_ref0, sum_ref2);
// add the low 64 bit to the high 64 bit
sum_mlow = _mm256_add_epi32(sum_mlow, sum_mhigh);
// add the low 128 bit to the high 128 bit
sum = _mm_add_epi32(_mm256_castsi256_si128(sum_mlow),
_mm256_extractf128_si256(sum_mlow, 1));
_mm_storeu_si128((__m128i *)(res), sum);
}
} }
void vpx_sad64x64x4d_avx2(const uint8_t *src, int src_stride, void vpx_sad64x64x4d_avx2(const uint8_t *src, int src_stride,
const uint8_t *const ref[4], int ref_stride, const uint8_t *const ref[4], int ref_stride,
uint32_t res[4]) { uint32_t res[4]) {
__m256i src_reg, srcnext_reg, ref0_reg, ref0next_reg; __m256i sums[4];
__m256i ref1_reg, ref1next_reg, ref2_reg, ref2next_reg;
__m256i ref3_reg, ref3next_reg;
__m256i sum_ref0, sum_ref1, sum_ref2, sum_ref3;
__m256i sum_mlow, sum_mhigh;
int i; int i;
const uint8_t *ref0, *ref1, *ref2, *ref3; const uint8_t *refs[4];
refs[0] = ref[0];
refs[1] = ref[1];
refs[2] = ref[2];
refs[3] = ref[3];
sums[0] = _mm256_setzero_si256();
sums[1] = _mm256_setzero_si256();
sums[2] = _mm256_setzero_si256();
sums[3] = _mm256_setzero_si256();
ref0 = ref[0];
ref1 = ref[1];
ref2 = ref[2];
ref3 = ref[3];
sum_ref0 = _mm256_set1_epi16(0);
sum_ref1 = _mm256_set1_epi16(0);
sum_ref2 = _mm256_set1_epi16(0);
sum_ref3 = _mm256_set1_epi16(0);
for (i = 0; i < 64; i++) { for (i = 0; i < 64; i++) {
__m256i r_lo[4], r_hi[4];
// load 64 bytes from src and all refs // load 64 bytes from src and all refs
src_reg = _mm256_loadu_si256((const __m256i *)src); const __m256i s_lo = _mm256_load_si256((const __m256i *)src);
srcnext_reg = _mm256_loadu_si256((const __m256i *)(src + 32)); const __m256i s_hi = _mm256_load_si256((const __m256i *)(src + 32));
ref0_reg = _mm256_loadu_si256((const __m256i *)ref0); r_lo[0] = _mm256_loadu_si256((const __m256i *)refs[0]);
ref0next_reg = _mm256_loadu_si256((const __m256i *)(ref0 + 32)); r_hi[0] = _mm256_loadu_si256((const __m256i *)(refs[0] + 32));
ref1_reg = _mm256_loadu_si256((const __m256i *)ref1); r_lo[1] = _mm256_loadu_si256((const __m256i *)refs[1]);
ref1next_reg = _mm256_loadu_si256((const __m256i *)(ref1 + 32)); r_hi[1] = _mm256_loadu_si256((const __m256i *)(refs[1] + 32));
ref2_reg = _mm256_loadu_si256((const __m256i *)ref2); r_lo[2] = _mm256_loadu_si256((const __m256i *)refs[2]);
ref2next_reg = _mm256_loadu_si256((const __m256i *)(ref2 + 32)); r_hi[2] = _mm256_loadu_si256((const __m256i *)(refs[2] + 32));
ref3_reg = _mm256_loadu_si256((const __m256i *)ref3); r_lo[3] = _mm256_loadu_si256((const __m256i *)refs[3]);
ref3next_reg = _mm256_loadu_si256((const __m256i *)(ref3 + 32)); r_hi[3] = _mm256_loadu_si256((const __m256i *)(refs[3] + 32));
// sum of the absolute differences between every ref-i to src // sum of the absolute differences between every ref-i to src
ref0_reg = _mm256_sad_epu8(ref0_reg, src_reg); r_lo[0] = _mm256_sad_epu8(r_lo[0], s_lo);
ref1_reg = _mm256_sad_epu8(ref1_reg, src_reg); r_lo[1] = _mm256_sad_epu8(r_lo[1], s_lo);
ref2_reg = _mm256_sad_epu8(ref2_reg, src_reg); r_lo[2] = _mm256_sad_epu8(r_lo[2], s_lo);
ref3_reg = _mm256_sad_epu8(ref3_reg, src_reg); r_lo[3] = _mm256_sad_epu8(r_lo[3], s_lo);
ref0next_reg = _mm256_sad_epu8(ref0next_reg, srcnext_reg); r_hi[0] = _mm256_sad_epu8(r_hi[0], s_hi);
ref1next_reg = _mm256_sad_epu8(ref1next_reg, srcnext_reg); r_hi[1] = _mm256_sad_epu8(r_hi[1], s_hi);
ref2next_reg = _mm256_sad_epu8(ref2next_reg, srcnext_reg); r_hi[2] = _mm256_sad_epu8(r_hi[2], s_hi);
ref3next_reg = _mm256_sad_epu8(ref3next_reg, srcnext_reg); r_hi[3] = _mm256_sad_epu8(r_hi[3], s_hi);
// sum every ref-i // sum every ref-i
sum_ref0 = _mm256_add_epi32(sum_ref0, ref0_reg); sums[0] = _mm256_add_epi32(sums[0], r_lo[0]);
sum_ref1 = _mm256_add_epi32(sum_ref1, ref1_reg); sums[1] = _mm256_add_epi32(sums[1], r_lo[1]);
sum_ref2 = _mm256_add_epi32(sum_ref2, ref2_reg); sums[2] = _mm256_add_epi32(sums[2], r_lo[2]);
sum_ref3 = _mm256_add_epi32(sum_ref3, ref3_reg); sums[3] = _mm256_add_epi32(sums[3], r_lo[3]);
sum_ref0 = _mm256_add_epi32(sum_ref0, ref0next_reg); sums[0] = _mm256_add_epi32(sums[0], r_hi[0]);
sum_ref1 = _mm256_add_epi32(sum_ref1, ref1next_reg); sums[1] = _mm256_add_epi32(sums[1], r_hi[1]);
sum_ref2 = _mm256_add_epi32(sum_ref2, ref2next_reg); sums[2] = _mm256_add_epi32(sums[2], r_hi[2]);
sum_ref3 = _mm256_add_epi32(sum_ref3, ref3next_reg); sums[3] = _mm256_add_epi32(sums[3], r_hi[3]);
src += src_stride; src += src_stride;
ref0 += ref_stride; refs[0] += ref_stride;
ref1 += ref_stride; refs[1] += ref_stride;
ref2 += ref_stride; refs[2] += ref_stride;
ref3 += ref_stride; refs[3] += ref_stride;
} }
{
__m128i sum;
// in sum_ref-i the result is saved in the first 4 bytes calc_final(sums, res);
// the other 4 bytes are zeroed.
// sum_ref1 and sum_ref3 are shifted left by 4 bytes
sum_ref1 = _mm256_slli_si256(sum_ref1, 4);
sum_ref3 = _mm256_slli_si256(sum_ref3, 4);
// merge sum_ref0 and sum_ref1 also sum_ref2 and sum_ref3
sum_ref0 = _mm256_or_si256(sum_ref0, sum_ref1);
sum_ref2 = _mm256_or_si256(sum_ref2, sum_ref3);
// merge every 64 bit from each sum_ref-i
sum_mlow = _mm256_unpacklo_epi64(sum_ref0, sum_ref2);
sum_mhigh = _mm256_unpackhi_epi64(sum_ref0, sum_ref2);
// add the low 64 bit to the high 64 bit
sum_mlow = _mm256_add_epi32(sum_mlow, sum_mhigh);
// add the low 128 bit to the high 128 bit
sum = _mm_add_epi32(_mm256_castsi256_si128(sum_mlow),
_mm256_extractf128_si256(sum_mlow, 1));
_mm_storeu_si128((__m128i *)(res), sum);
}
} }