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sad neon: rewrite 64x64 and add 64x32

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BUG=webm:1425

Change-Id: Ib454762d1c61b05a98324fe81ad58c9e09784717
This commit is contained in:
Johann 2017-06-27 15:17:31 -07:00
parent 77a648885c
commit ad011aaab8
3 changed files with 46 additions and 41 deletions
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1
test/sad_test.cc
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@ -644,6 +644,7 @@ INSTANTIATE_TEST_CASE_P(C, SADx4Test, ::testing::ValuesIn(x4d_c_tests));
#if HAVE_NEON
const SadMxNParam neon_tests[] = {
SadMxNParam(64, 64, &vpx_sad64x64_neon),
SadMxNParam(64, 32, &vpx_sad64x32_neon),
SadMxNParam(32, 32, &vpx_sad32x32_neon),
SadMxNParam(16, 32, &vpx_sad16x32_neon),
SadMxNParam(16, 16, &vpx_sad16x16_neon),

82
vpx_dsp/arm/sad_neon.c
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@ -156,51 +156,55 @@ uint32_t vpx_sad32x64_neon(const uint8_t *src, int src_stride,
return horizontal_add_16x8(abs);
}
static INLINE unsigned int horizontal_long_add_16x8(const uint16x8_t vec_lo,
const uint16x8_t vec_hi) {
const uint32x4_t vec_l_lo =
vaddl_u16(vget_low_u16(vec_lo), vget_high_u16(vec_lo));
const uint32x4_t vec_l_hi =
vaddl_u16(vget_low_u16(vec_hi), vget_high_u16(vec_hi));
const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi);
static INLINE uint32_t horizontal_add_32x4(const uint32x4_t a) {
const uint64x2_t b = vpaddlq_u32(a);
const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
vreinterpret_u32_u64(vget_high_u64(b)));
return vget_lane_u32(c, 0);
}
unsigned int vpx_sad64x64_neon(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride) {
static INLINE uint32x4_t sad64x(const uint8_t *a, int a_stride,
const uint8_t *b, int b_stride,
const int height) {
int i;
uint16x8_t vec_accum_lo = vdupq_n_u16(0);
uint16x8_t vec_accum_hi = vdupq_n_u16(0);
for (i = 0; i < 64; ++i) {
const uint8x16_t vec_src_00 = vld1q_u8(src);
const uint8x16_t vec_src_16 = vld1q_u8(src + 16);
const uint8x16_t vec_src_32 = vld1q_u8(src + 32);
const uint8x16_t vec_src_48 = vld1q_u8(src + 48);
const uint8x16_t vec_ref_00 = vld1q_u8(ref);
const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16);
const uint8x16_t vec_ref_32 = vld1q_u8(ref + 32);
const uint8x16_t vec_ref_48 = vld1q_u8(ref + 48);
src += src_stride;
ref += ref_stride;
vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00),
vget_low_u8(vec_ref_00));
vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00),
vget_high_u8(vec_ref_00));
vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16),
vget_low_u8(vec_ref_16));
vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16),
vget_high_u8(vec_ref_16));
vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_32),
vget_low_u8(vec_ref_32));
vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_32),
vget_high_u8(vec_ref_32));
vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_48),
vget_low_u8(vec_ref_48));
vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_48),
vget_high_u8(vec_ref_48));
uint16x8_t abs_0 = vdupq_n_u16(0);
uint16x8_t abs_1 = vdupq_n_u16(0);
for (i = 0; i < height; ++i) {
const uint8x16_t a_0 = vld1q_u8(a);
const uint8x16_t a_1 = vld1q_u8(a + 16);
const uint8x16_t a_2 = vld1q_u8(a + 32);
const uint8x16_t a_3 = vld1q_u8(a + 48);
const uint8x16_t b_0 = vld1q_u8(b);
const uint8x16_t b_1 = vld1q_u8(b + 16);
const uint8x16_t b_2 = vld1q_u8(b + 32);
const uint8x16_t b_3 = vld1q_u8(b + 48);
a += a_stride;
b += b_stride;
abs_0 = vabal_u8(abs_0, vget_low_u8(a_0), vget_low_u8(b_0));
abs_0 = vabal_u8(abs_0, vget_high_u8(a_0), vget_high_u8(b_0));
abs_0 = vabal_u8(abs_0, vget_low_u8(a_1), vget_low_u8(b_1));
abs_0 = vabal_u8(abs_0, vget_high_u8(a_1), vget_high_u8(b_1));
abs_1 = vabal_u8(abs_1, vget_low_u8(a_2), vget_low_u8(b_2));
abs_1 = vabal_u8(abs_1, vget_high_u8(a_2), vget_high_u8(b_2));
abs_1 = vabal_u8(abs_1, vget_low_u8(a_3), vget_low_u8(b_3));
abs_1 = vabal_u8(abs_1, vget_high_u8(a_3), vget_high_u8(b_3));
}
{
const uint32x4_t sum = vpaddlq_u16(abs_0);
return vpadalq_u16(sum, abs_1);
}
return horizontal_long_add_16x8(vec_accum_lo, vec_accum_hi);
}
uint32_t vpx_sad64x32_neon(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride) {
const uint32x4_t abs = sad64x(src, src_stride, ref, ref_stride, 32);
return horizontal_add_32x4(abs);
}
uint32_t vpx_sad64x64_neon(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride) {
const uint32x4_t abs = sad64x(src, src_stride, ref, ref_stride, 64);
return horizontal_add_32x4(abs);
}

4
vpx_dsp/vpx_dsp_rtcd_defs.pl
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@ -696,10 +696,10 @@ specialize qw/vpx_subtract_block neon msa sse2/;
# Single block SAD
#
add_proto qw/unsigned int vpx_sad64x64/, "const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, int ref_stride";
specialize qw/vpx_sad64x64 avx2 neon msa sse2 vsx/;
specialize qw/vpx_sad64x64 neon avx2 msa sse2 vsx/;
add_proto qw/unsigned int vpx_sad64x32/, "const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, int ref_stride";
specialize qw/vpx_sad64x32 avx2 msa sse2 vsx/;
specialize qw/vpx_sad64x32 neon avx2 msa sse2 vsx/;
add_proto qw/unsigned int vpx_sad32x64/, "const uint8_t *src_ptr, int src_stride, const uint8_t *ref_ptr, int ref_stride";
specialize qw/vpx_sad32x64 neon avx2 msa sse2 vsx/;