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ppc: dc top and left predictor 32x32

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6x faster.

Change-Id: I717995b4056e5579c68191d11b495372971fe1ae
This commit is contained in:
Luca Barbato
2017-04-08 02:55:33 +00:00
committed by James Zern
parent ad9dea1f6d
commit 22ca468c7c
3 changed files with 34 additions and 6 deletions
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8
test/test_intra_pred_speed.cc
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@@ -321,10 +321,10 @@ INTRA_PRED_TEST(VSX, TestIntraPred16, NULL, vpx_dc_left_predictor_16x16_vsx,
vpx_v_predictor_16x16_vsx, vpx_h_predictor_16x16_vsx, NULL,
NULL, NULL, NULL, NULL, NULL, vpx_tm_predictor_16x16_vsx)
INTRA_PRED_TEST(VSX, TestIntraPred32, NULL, NULL, NULL,
vpx_dc_128_predictor_32x32_vsx, vpx_v_predictor_32x32_vsx,
vpx_h_predictor_32x32_vsx, NULL, NULL, NULL, NULL, NULL, NULL,
vpx_tm_predictor_32x32_vsx)
INTRA_PRED_TEST(VSX, TestIntraPred32, NULL, vpx_dc_left_predictor_32x32_vsx,
vpx_dc_top_predictor_32x32_vsx, vpx_dc_128_predictor_32x32_vsx,
vpx_v_predictor_32x32_vsx, vpx_h_predictor_32x32_vsx, NULL,
NULL, NULL, NULL, NULL, NULL, vpx_tm_predictor_32x32_vsx)
#endif // HAVE_VSX
// -----------------------------------------------------------------------------

28
vpx_dsp/ppc/intrapred_vsx.c
View File

@@ -423,3 +423,31 @@ void vpx_dc_top_predictor_16x16_vsx(uint8_t *dst, ptrdiff_t stride,
dc_fill_predictor_16x16(dst, stride, avg16(above));
}
static uint8x16_t avg32(const uint8_t *values) {
const uint8x16_t v0 = vec_vsx_ld(0, values);
const uint8x16_t v1 = vec_vsx_ld(16, values);
const int32x4_t v16 = vec_sl(vec_splat_s32(1), vec_splat_u32(4));
const int32x4_t sum4s =
(int32x4_t)vec_sum4s(v0, vec_sum4s(v1, vec_splat_u32(0)));
const uint32x4_t sum = (uint32x4_t)vec_sums(sum4s, v16);
const uint32x4_t avg = (uint32x4_t)vec_sr(sum, vec_splat_u32(5));
return vec_splat(vec_pack(vec_pack(avg, vec_splat_u32(0)), vec_splat_u16(0)),
3);
}
void vpx_dc_left_predictor_32x32_vsx(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above,
const uint8_t *left) {
(void)above;
dc_fill_predictor_32x32(dst, stride, avg32(left));
}
void vpx_dc_top_predictor_32x32_vsx(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
(void)left;
dc_fill_predictor_32x32(dst, stride, avg32(above));
}

4
vpx_dsp/vpx_dsp_rtcd_defs.pl
View File

@@ -177,10 +177,10 @@ add_proto qw/void vpx_dc_predictor_32x32/, "uint8_t *dst, ptrdiff_t y_stride, co
specialize qw/vpx_dc_predictor_32x32 msa neon sse2/;
add_proto qw/void vpx_dc_top_predictor_32x32/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
specialize qw/vpx_dc_top_predictor_32x32 msa neon sse2/;
specialize qw/vpx_dc_top_predictor_32x32 msa neon sse2 vsx/;
add_proto qw/void vpx_dc_left_predictor_32x32/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
specialize qw/vpx_dc_left_predictor_32x32 msa neon sse2/;
specialize qw/vpx_dc_left_predictor_32x32 msa neon sse2 vsx/;
add_proto qw/void vpx_dc_128_predictor_32x32/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
specialize qw/vpx_dc_128_predictor_32x32 msa neon sse2 vsx/;