shithub: libvpx

Download patch

ref: f783e3a75d2debf41bb50793edd50b7459ea84f0
parent: 81f45ff79889d44a3958b15f506379f045ac3726
author: Scott LaVarnway <slavarnway@google.com>
date: Tue Aug 29 07:25:32 EDT 2017

vpxdsp: [x86] add highbd_dc_top_predictor functions

C vs SSE2 speed gains:
_4x4 : ~7.39x
_8x8 : ~11.36x
_16x16 : ~8.68x
_32x32 : ~4.33x

BUG=webm:1411

Change-Id: I7f1487cd1531d4e7f0fbb4596fed3bfb72a59d58

--- a/test/test_intra_pred_speed.cc
+++ b/test/test_intra_pred_speed.cc
@@ -481,25 +481,29 @@
 
 #if HAVE_SSE2
 HIGHBD_INTRA_PRED_TEST(SSE2, TestHighbdIntraPred4,
-                       vpx_highbd_dc_predictor_4x4_sse2, NULL, NULL, NULL,
+                       vpx_highbd_dc_predictor_4x4_sse2, NULL,
+                       vpx_highbd_dc_top_predictor_4x4_sse2, NULL,
                        vpx_highbd_v_predictor_4x4_sse2,
                        vpx_highbd_h_predictor_4x4_sse2, NULL, NULL, NULL, NULL,
                        NULL, NULL, vpx_highbd_tm_predictor_4x4_c)
 
 HIGHBD_INTRA_PRED_TEST(SSE2, TestHighbdIntraPred8,
-                       vpx_highbd_dc_predictor_8x8_sse2, NULL, NULL, NULL,
+                       vpx_highbd_dc_predictor_8x8_sse2, NULL,
+                       vpx_highbd_dc_top_predictor_8x8_sse2, NULL,
                        vpx_highbd_v_predictor_8x8_sse2,
                        vpx_highbd_h_predictor_8x8_sse2, NULL, NULL, NULL, NULL,
                        NULL, NULL, vpx_highbd_tm_predictor_8x8_sse2)
 
 HIGHBD_INTRA_PRED_TEST(SSE2, TestHighbdIntraPred16,
-                       vpx_highbd_dc_predictor_16x16_sse2, NULL, NULL, NULL,
+                       vpx_highbd_dc_predictor_16x16_sse2, NULL,
+                       vpx_highbd_dc_top_predictor_16x16_sse2, NULL,
                        vpx_highbd_v_predictor_16x16_sse2,
                        vpx_highbd_h_predictor_16x16_sse2, NULL, NULL, NULL,
                        NULL, NULL, NULL, vpx_highbd_tm_predictor_16x16_sse2)
 
 HIGHBD_INTRA_PRED_TEST(SSE2, TestHighbdIntraPred32,
-                       vpx_highbd_dc_predictor_32x32_sse2, NULL, NULL, NULL,
+                       vpx_highbd_dc_predictor_32x32_sse2, NULL,
+                       vpx_highbd_dc_top_predictor_32x32_sse2, NULL,
                        vpx_highbd_v_predictor_32x32_sse2,
                        vpx_highbd_h_predictor_32x32_sse2, NULL, NULL, NULL,
                        NULL, NULL, NULL, vpx_highbd_tm_predictor_32x32_sse2)
--- a/test/vp9_intrapred_test.cc
+++ b/test/vp9_intrapred_test.cc
@@ -479,6 +479,14 @@
                              &vpx_highbd_dc_predictor_16x16_c, 16, 8),
         HighbdIntraPredParam(&vpx_highbd_dc_predictor_32x32_sse2,
                              &vpx_highbd_dc_predictor_32x32_c, 32, 8),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_4x4_sse2,
+                             &vpx_highbd_dc_top_predictor_4x4_c, 4, 8),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_8x8_sse2,
+                             &vpx_highbd_dc_top_predictor_8x8_c, 8, 8),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_16x16_sse2,
+                             &vpx_highbd_dc_top_predictor_16x16_c, 16, 8),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_32x32_sse2,
+                             &vpx_highbd_dc_top_predictor_32x32_c, 32, 8),
         HighbdIntraPredParam(&vpx_highbd_tm_predictor_4x4_sse2,
                              &vpx_highbd_tm_predictor_4x4_c, 4, 8),
         HighbdIntraPredParam(&vpx_highbd_tm_predictor_8x8_sse2,
@@ -515,6 +523,14 @@
                              &vpx_highbd_dc_predictor_16x16_c, 16, 10),
         HighbdIntraPredParam(&vpx_highbd_dc_predictor_32x32_sse2,
                              &vpx_highbd_dc_predictor_32x32_c, 32, 10),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_4x4_sse2,
+                             &vpx_highbd_dc_top_predictor_4x4_c, 4, 10),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_8x8_sse2,
+                             &vpx_highbd_dc_top_predictor_8x8_c, 8, 10),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_16x16_sse2,
+                             &vpx_highbd_dc_top_predictor_16x16_c, 16, 10),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_32x32_sse2,
+                             &vpx_highbd_dc_top_predictor_32x32_c, 32, 10),
         HighbdIntraPredParam(&vpx_highbd_tm_predictor_4x4_sse2,
                              &vpx_highbd_tm_predictor_4x4_c, 4, 10),
         HighbdIntraPredParam(&vpx_highbd_tm_predictor_8x8_sse2,
@@ -551,6 +567,14 @@
                              &vpx_highbd_dc_predictor_16x16_c, 16, 12),
         HighbdIntraPredParam(&vpx_highbd_dc_predictor_32x32_sse2,
                              &vpx_highbd_dc_predictor_32x32_c, 32, 12),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_4x4_sse2,
+                             &vpx_highbd_dc_top_predictor_4x4_c, 4, 12),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_8x8_sse2,
+                             &vpx_highbd_dc_top_predictor_8x8_c, 8, 12),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_16x16_sse2,
+                             &vpx_highbd_dc_top_predictor_16x16_c, 16, 12),
+        HighbdIntraPredParam(&vpx_highbd_dc_top_predictor_32x32_sse2,
+                             &vpx_highbd_dc_top_predictor_32x32_c, 32, 12),
         HighbdIntraPredParam(&vpx_highbd_tm_predictor_4x4_sse2,
                              &vpx_highbd_tm_predictor_4x4_c, 4, 12),
         HighbdIntraPredParam(&vpx_highbd_tm_predictor_8x8_sse2,
--- a/vpx_dsp/vpx_dsp_rtcd_defs.pl
+++ b/vpx_dsp/vpx_dsp_rtcd_defs.pl
@@ -214,7 +214,7 @@
   specialize qw/vpx_highbd_dc_predictor_4x4 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_top_predictor_4x4/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
-  specialize qw/vpx_highbd_dc_top_predictor_4x4 neon/;
+  specialize qw/vpx_highbd_dc_top_predictor_4x4 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_left_predictor_4x4/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
   specialize qw/vpx_highbd_dc_left_predictor_4x4 neon/;
@@ -249,7 +249,7 @@
   specialize qw/vpx_highbd_dc_predictor_8x8 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_top_predictor_8x8/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
-  specialize qw/vpx_highbd_dc_top_predictor_8x8 neon/;
+  specialize qw/vpx_highbd_dc_top_predictor_8x8 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_left_predictor_8x8/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
   specialize qw/vpx_highbd_dc_left_predictor_8x8 neon/;
@@ -284,7 +284,7 @@
   specialize qw/vpx_highbd_dc_predictor_16x16 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_top_predictor_16x16/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
-  specialize qw/vpx_highbd_dc_top_predictor_16x16 neon/;
+  specialize qw/vpx_highbd_dc_top_predictor_16x16 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_left_predictor_16x16/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
   specialize qw/vpx_highbd_dc_left_predictor_16x16 neon/;
@@ -319,7 +319,7 @@
   specialize qw/vpx_highbd_dc_predictor_32x32 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_top_predictor_32x32/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
-  specialize qw/vpx_highbd_dc_top_predictor_32x32 neon/;
+  specialize qw/vpx_highbd_dc_top_predictor_32x32 neon sse2/;
 
   add_proto qw/void vpx_highbd_dc_left_predictor_32x32/, "uint16_t *dst, ptrdiff_t y_stride, const uint16_t *above, const uint16_t *left, int bd";
   specialize qw/vpx_highbd_dc_left_predictor_32x32 neon/;
--- a/vpx_dsp/x86/highbd_intrapred_intrin_sse2.c
+++ b/vpx_dsp/x86/highbd_intrapred_intrin_sse2.c
@@ -157,3 +157,133 @@
     h_store_32_unpackhi(&dst, stride, &row7);
   }
 }
+
+//------------------------------------------------------------------------------
+// DC 4x4
+
+static INLINE __m128i dc_sum_4(const uint16_t *ref) {
+  const __m128i _dcba = _mm_loadl_epi64((const __m128i *)ref);
+  const __m128i _xxdc = _mm_shufflelo_epi16(_dcba, 0xe);
+  const __m128i a = _mm_add_epi16(_dcba, _xxdc);
+  return _mm_add_epi16(a, _mm_shufflelo_epi16(a, 0x1));
+}
+
+static INLINE void dc_store_4x4(uint16_t *dst, ptrdiff_t stride,
+                                const __m128i *dc) {
+  const __m128i dc_dup = _mm_shufflelo_epi16(*dc, 0x0);
+  int i;
+  for (i = 0; i < 4; ++i, dst += stride) {
+    _mm_storel_epi64((__m128i *)dst, dc_dup);
+  }
+}
+
+void vpx_highbd_dc_top_predictor_4x4_sse2(uint16_t *dst, ptrdiff_t stride,
+                                          const uint16_t *above,
+                                          const uint16_t *left, int bd) {
+  const __m128i two = _mm_cvtsi32_si128(2);
+  const __m128i sum = dc_sum_4(above);
+  const __m128i dc = _mm_srli_epi16(_mm_add_epi16(sum, two), 2);
+  (void)left;
+  (void)bd;
+  dc_store_4x4(dst, stride, &dc);
+}
+
+//------------------------------------------------------------------------------
+// DC 8x8
+
+static INLINE __m128i dc_sum_8(const uint16_t *ref) {
+  const __m128i ref_u16 = _mm_load_si128((const __m128i *)ref);
+  const __m128i _dcba = _mm_add_epi16(ref_u16, _mm_srli_si128(ref_u16, 8));
+  const __m128i _xxdc = _mm_shufflelo_epi16(_dcba, 0xe);
+  const __m128i a = _mm_add_epi16(_dcba, _xxdc);
+
+  return _mm_add_epi16(a, _mm_shufflelo_epi16(a, 0x1));
+}
+
+static INLINE void dc_store_8x8(uint16_t *dst, ptrdiff_t stride,
+                                const __m128i *dc) {
+  const __m128i dc_dup_lo = _mm_shufflelo_epi16(*dc, 0);
+  const __m128i dc_dup = _mm_unpacklo_epi64(dc_dup_lo, dc_dup_lo);
+  int i;
+  for (i = 0; i < 8; ++i, dst += stride) {
+    _mm_store_si128((__m128i *)dst, dc_dup);
+  }
+}
+
+void vpx_highbd_dc_top_predictor_8x8_sse2(uint16_t *dst, ptrdiff_t stride,
+                                          const uint16_t *above,
+                                          const uint16_t *left, int bd) {
+  const __m128i four = _mm_cvtsi32_si128(4);
+  const __m128i sum = dc_sum_8(above);
+  const __m128i dc = _mm_srli_epi16(_mm_add_epi16(sum, four), 3);
+  (void)left;
+  (void)bd;
+  dc_store_8x8(dst, stride, &dc);
+}
+
+//------------------------------------------------------------------------------
+// DC 16x16
+
+static INLINE __m128i dc_sum_16(const uint16_t *ref) {
+  const __m128i sum_lo = dc_sum_8(ref);
+  const __m128i sum_hi = dc_sum_8(ref + 8);
+  return _mm_add_epi16(sum_lo, sum_hi);
+}
+
+static INLINE void dc_store_16x16(uint16_t *dst, ptrdiff_t stride,
+                                  const __m128i *dc) {
+  const __m128i dc_dup_lo = _mm_shufflelo_epi16(*dc, 0);
+  const __m128i dc_dup = _mm_unpacklo_epi64(dc_dup_lo, dc_dup_lo);
+  int i;
+  for (i = 0; i < 16; ++i, dst += stride) {
+    _mm_store_si128((__m128i *)dst, dc_dup);
+    _mm_store_si128((__m128i *)(dst + 8), dc_dup);
+  }
+}
+
+void vpx_highbd_dc_top_predictor_16x16_sse2(uint16_t *dst, ptrdiff_t stride,
+                                            const uint16_t *above,
+                                            const uint16_t *left, int bd) {
+  const __m128i eight = _mm_cvtsi32_si128(8);
+  const __m128i sum = dc_sum_16(above);
+  const __m128i dc = _mm_srli_epi16(_mm_add_epi16(sum, eight), 4);
+  (void)left;
+  (void)bd;
+  dc_store_16x16(dst, stride, &dc);
+}
+
+//------------------------------------------------------------------------------
+// DC 32x32
+
+static INLINE __m128i dc_sum_32(const uint16_t *ref) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i sum_a = dc_sum_16(ref);
+  const __m128i sum_b = dc_sum_16(ref + 16);
+  // 12 bit bd will outrange, so expand to 32 bit before adding final total
+  return _mm_add_epi32(_mm_unpacklo_epi16(sum_a, zero),
+                       _mm_unpacklo_epi16(sum_b, zero));
+}
+
+static INLINE void dc_store_32x32(uint16_t *dst, ptrdiff_t stride,
+                                  const __m128i *dc) {
+  const __m128i dc_dup_lo = _mm_shufflelo_epi16(*dc, 0);
+  const __m128i dc_dup = _mm_unpacklo_epi64(dc_dup_lo, dc_dup_lo);
+  int i;
+  for (i = 0; i < 32; ++i, dst += stride) {
+    _mm_store_si128((__m128i *)dst, dc_dup);
+    _mm_store_si128((__m128i *)(dst + 8), dc_dup);
+    _mm_store_si128((__m128i *)(dst + 16), dc_dup);
+    _mm_store_si128((__m128i *)(dst + 24), dc_dup);
+  }
+}
+
+void vpx_highbd_dc_top_predictor_32x32_sse2(uint16_t *dst, ptrdiff_t stride,
+                                            const uint16_t *above,
+                                            const uint16_t *left, int bd) {
+  const __m128i sixteen = _mm_cvtsi32_si128(16);
+  const __m128i sum = dc_sum_32(above);
+  const __m128i dc = _mm_srli_epi32(_mm_add_epi32(sum, sixteen), 5);
+  (void)left;
+  (void)bd;
+  dc_store_32x32(dst, stride, &dc);
+}