ref: 0d9417de4a377a76deffac47072e9ed5604d8fda
parent: a81f037f15e259a63f70e9248bb85588d66352a1
author: Luca Barbato <lu_zero@gentoo.org>
date: Fri Apr 7 10:49:00 EDT 2017
ppc: tm predictor 32x32 About 8x faster. Change-Id: I9bad827ccbdf47ec95406e961c74ac2ff45f80cf
--- a/test/test_intra_pred_speed.cc
+++ b/test/test_intra_pred_speed.cc
@@ -322,7 +322,7 @@
INTRA_PRED_TEST(VSX, TestIntraPred32, NULL, NULL, NULL, NULL,
vpx_v_predictor_32x32_vsx, vpx_h_predictor_32x32_vsx, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL)
+ NULL, NULL, NULL, NULL, NULL, vpx_tm_predictor_32x32_vsx)
#endif // HAVE_VSX
// -----------------------------------------------------------------------------
--- a/vpx_dsp/ppc/intrapred_vsx.c
+++ b/vpx_dsp/ppc/intrapred_vsx.c
@@ -295,3 +295,69 @@
tm_predictor_16x8(dst, stride, ll, ah, al, tl);
}
+
+static INLINE void tm_predictor_32x1(uint8_t *dst, const int16x8_t ls,
+ const int16x8_t a0h, const int16x8_t a0l,
+ const int16x8_t a1h, const int16x8_t a1l,
+ const int16x8_t tl) {+ int16x8_t vh, vl;
+
+ vh = vec_sub(vec_add(ls, a0h), tl);
+ vl = vec_sub(vec_add(ls, a0l), tl);
+ vec_vsx_st(vec_packsu(vh, vl), 0, dst);
+ vh = vec_sub(vec_add(ls, a1h), tl);
+ vl = vec_sub(vec_add(ls, a1l), tl);
+ vec_vsx_st(vec_packsu(vh, vl), 16, dst);
+}
+
+static void tm_predictor_32x8(uint8_t *dst, const ptrdiff_t stride,
+ const int16x8_t l, const uint8x16_t a0,
+ const uint8x16_t a1, const int16x8_t tl) {+ const int16x8_t a0h = unpack_to_s16_h(a0);
+ const int16x8_t a0l = unpack_to_s16_l(a0);
+ const int16x8_t a1h = unpack_to_s16_h(a1);
+ const int16x8_t a1l = unpack_to_s16_l(a1);
+
+ tm_predictor_32x1(dst, vec_splat(l, 0), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 1), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 2), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 3), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 4), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 5), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 6), a0h, a0l, a1h, a1l, tl);
+ dst += stride;
+
+ tm_predictor_32x1(dst, vec_splat(l, 7), a0h, a0l, a1h, a1l, tl);
+}
+
+void vpx_tm_predictor_32x32_vsx(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {+ const int16x8_t tl = unpack_to_s16_h(vec_splat(vec_vsx_ld(-1, above), 0));
+ const uint8x16_t l0 = vec_vsx_ld(0, left);
+ const uint8x16_t l1 = vec_vsx_ld(16, left);
+ const uint8x16_t a0 = vec_vsx_ld(0, above);
+ const uint8x16_t a1 = vec_vsx_ld(16, above);
+
+ tm_predictor_32x8(dst, stride, unpack_to_s16_h(l0), a0, a1, tl);
+ dst += stride * 8;
+
+ tm_predictor_32x8(dst, stride, unpack_to_s16_l(l0), a0, a1, tl);
+ dst += stride * 8;
+
+ tm_predictor_32x8(dst, stride, unpack_to_s16_h(l1), a0, a1, tl);
+ dst += stride * 8;
+
+ tm_predictor_32x8(dst, stride, unpack_to_s16_l(l1), a0, a1, tl);
+}
--- a/vpx_dsp/vpx_dsp_rtcd_defs.pl
+++ b/vpx_dsp/vpx_dsp_rtcd_defs.pl
@@ -171,7 +171,7 @@
specialize qw/vpx_v_predictor_32x32 neon msa sse2 vsx/;
add_proto qw/void vpx_tm_predictor_32x32/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
-specialize qw/vpx_tm_predictor_32x32 neon msa sse2/;
+specialize qw/vpx_tm_predictor_32x32 neon msa sse2 vsx/;
add_proto qw/void vpx_dc_predictor_32x32/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
specialize qw/vpx_dc_predictor_32x32 msa neon sse2/;