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partial fdct neon: add 16x16_1

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For the 8x8_1, the highbd output fit nicely in the existing function. 12
bit input will overflow this implementation of 16x16_1.

BUG=webm:1424

Change-Id: I2945fe5478b18f996f1a5de80110fa30f3f4e7ec
This commit is contained in:
Johann 2017-06-22 18:22:27 -07:00
parent 4959dd3eb3
commit f310ddc470
3 changed files with 24 additions and 4 deletions
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6
test/dct_partial_test.cc
View File

@ -142,14 +142,16 @@ INSTANTIATE_TEST_CASE_P(
#if CONFIG_VP9_HIGHBITDEPTH
INSTANTIATE_TEST_CASE_P(
NEON, PartialFdctTest,
::testing::Values(make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_12),
::testing::Values(make_tuple(&vpx_fdct16x16_1_neon, 16, VPX_BITS_8),
make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_12),
make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_10),
make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_8),
make_tuple(&vpx_fdct4x4_1_neon, 4, VPX_BITS_8)));
#else
INSTANTIATE_TEST_CASE_P(
NEON, PartialFdctTest,
::testing::Values(make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_8),
::testing::Values(make_tuple(&vpx_fdct16x16_1_neon, 16, VPX_BITS_8),
make_tuple(&vpx_fdct8x8_1_neon, 8, VPX_BITS_8),
make_tuple(&vpx_fdct4x4_1_neon, 4, VPX_BITS_8)));
#endif // CONFIG_VP9_HIGHBITDEPTH
#endif // HAVE_NEON

18
vpx_dsp/arm/fdct_partial_neon.c
View File

@ -59,3 +59,21 @@ void vpx_fdct8x8_1_neon(const int16_t *input, tran_low_t *output, int stride) {
output[0] = sum_int16x8(sum);
output[1] = 0;
}
void vpx_fdct16x16_1_neon(const int16_t *input, tran_low_t *output,
int stride) {
int r;
int16x8_t left = vld1q_s16(input);
int16x8_t right = vld1q_s16(input + 8);
input += stride;
for (r = 1; r < 16; ++r) {
const int16x8_t a = vld1q_s16(input);
const int16x8_t b = vld1q_s16(input + 8);
input += stride;
left = vaddq_s16(left, a);
right = vaddq_s16(right, b);
}
output[0] = (sum_int16x8(left) + sum_int16x8(right)) >> 1;
output[1] = 0;
}

4
vpx_dsp/vpx_dsp_rtcd_defs.pl
View File

@ -499,7 +499,7 @@ if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
specialize qw/vpx_fdct16x16 neon sse2/;
add_proto qw/void vpx_fdct16x16_1/, "const int16_t *input, tran_low_t *output, int stride";
specialize qw/vpx_fdct16x16_1 sse2/;
specialize qw/vpx_fdct16x16_1 sse2 neon/;
add_proto qw/void vpx_fdct32x32/, "const int16_t *input, tran_low_t *output, int stride";
specialize qw/vpx_fdct32x32 neon sse2/;
@ -549,7 +549,7 @@ if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
specialize qw/vpx_fdct16x16 neon sse2 msa/;
add_proto qw/void vpx_fdct16x16_1/, "const int16_t *input, tran_low_t *output, int stride";
specialize qw/vpx_fdct16x16_1 sse2 msa/;
specialize qw/vpx_fdct16x16_1 sse2 neon msa/;
add_proto qw/void vpx_fdct32x32/, "const int16_t *input, tran_low_t *output, int stride";
specialize qw/vpx_fdct32x32 neon sse2 avx2 msa/;