Update libaom to commit ID 1e227d41f0616de9548a673a83a21ef990b62591

1 files changed, 342 insertions, 21 deletions

diff --git a/third_party/aom/av1/common/arm/convolve_neon.c b/third_party/aom/av1/common/arm/convolve_neon.c
index f15744c94..d0c4f8ff6 100644
--- a/third_party/aom/av1/common/arm/convolve_neon.c
+++ b/third_party/aom/av1/common/arm/convolve_neon.c
@@ -13,6 +13,8 @@
 #include <assert.h>
 #include <arm_neon.h>
 
+#include "config/av1_rtcd.h"
+
 #include "aom_dsp/aom_dsp_common.h"
 #include "aom_ports/mem.h"
 #include "av1/common/convolve.h"
@@ -68,6 +70,33 @@ static INLINE uint8x8_t convolve8_horiz_8x8(
   return vqmovun_s16(sum);
 }
 
+#if !defined(__aarch64__)
+static INLINE uint8x8_t convolve8_horiz_4x1(
+    const int16x4_t s0, const int16x4_t s1, const int16x4_t s2,
+    const int16x4_t s3, const int16x4_t s4, const int16x4_t s5,
+    const int16x4_t s6, const int16x4_t s7, const int16_t *filter,
+    const int16x4_t shift_round_0, const int16x4_t shift_by_bits) {
+  int16x4_t sum;
+
+  sum = vmul_n_s16(s0, filter[0]);
+  sum = vmla_n_s16(sum, s1, filter[1]);
+  sum = vmla_n_s16(sum, s2, filter[2]);
+  sum = vmla_n_s16(sum, s5, filter[5]);
+  sum = vmla_n_s16(sum, s6, filter[6]);
+  sum = vmla_n_s16(sum, s7, filter[7]);
+  /* filter[3] can take a max value of 128. So the max value of the result :
+   * 128*255 + sum > 16 bits
+   */
+  sum = vqadd_s16(sum, vmul_n_s16(s3, filter[3]));
+  sum = vqadd_s16(sum, vmul_n_s16(s4, filter[4]));
+
+  sum = vqrshl_s16(sum, shift_round_0);
+  sum = vqrshl_s16(sum, shift_by_bits);
+
+  return vqmovun_s16(vcombine_s16(sum, sum));
+}
+#endif  // !defined(__arch64__)
+
 static INLINE uint8x8_t convolve8_vert_8x4(
     const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
     const int16x8_t s3, const int16x8_t s4, const int16x8_t s5,
@@ -175,7 +204,10 @@ void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
   (void)conv_params;
   (void)filter_params_y;
 
-  uint8x8_t t0, t1, t2, t3;
+  uint8x8_t t0;
+#if defined(__aarch64__)
+  uint8x8_t t1, t2, t3;
+#endif
 
   assert(bits >= 0);
   assert((FILTER_BITS - conv_params->round_1) >= 0 ||
@@ -188,7 +220,7 @@ void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
   const int16x8_t shift_by_bits = vdupq_n_s16(-bits);
 
   src -= horiz_offset;
-
+#if defined(__aarch64__)
   if (h == 4) {
     uint8x8_t d01, d23;
     int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3;
@@ -275,12 +307,18 @@ void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       w -= 4;
     } while (w > 0);
   } else {
+#endif
     int width;
     const uint8_t *s;
+    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+
+#if defined(__aarch64__)
+    int16x8_t s8, s9, s10;
     uint8x8_t t4, t5, t6, t7;
-    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
+#endif
 
     if (w <= 4) {
+#if defined(__aarch64__)
       do {
         load_u8_8x8(src, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
         transpose_u8_8x8(&t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7);
@@ -387,10 +425,49 @@ void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
         }
         h -= 8;
       } while (h > 0);
+#else
+    int16x8_t tt0;
+    int16x4_t x0, x1, x2, x3, x4, x5, x6, x7;
+    const int16x4_t shift_round_0_low = vget_low_s16(shift_round_0);
+    const int16x4_t shift_by_bits_low = vget_low_s16(shift_by_bits);
+    do {
+      t0 = vld1_u8(src);  // a0 a1 a2 a3 a4 a5 a6 a7
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      x0 = vget_low_s16(tt0);   // a0 a1 a2 a3
+      x4 = vget_high_s16(tt0);  // a4 a5 a6 a7
+
+      t0 = vld1_u8(src + 8);  // a8 a9 a10 a11 a12 a13 a14 a15
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      x7 = vget_low_s16(tt0);  // a8 a9 a10 a11
+
+      x1 = vext_s16(x0, x4, 1);  // a1 a2 a3 a4
+      x2 = vext_s16(x0, x4, 2);  // a2 a3 a4 a5
+      x3 = vext_s16(x0, x4, 3);  // a3 a4 a5 a6
+      x5 = vext_s16(x4, x7, 1);  // a5 a6 a7 a8
+      x6 = vext_s16(x4, x7, 2);  // a6 a7 a8 a9
+      x7 = vext_s16(x4, x7, 3);  // a7 a8 a9 a10
+
+      src += src_stride;
+
+      t0 = convolve8_horiz_4x1(x0, x1, x2, x3, x4, x5, x6, x7, x_filter,
+                               shift_round_0_low, shift_by_bits_low);
+
+      if (w == 4) {
+        vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(t0),
+                      0);  // 00 01 02 03
+        dst += dst_stride;
+      } else if (w == 2) {
+        vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(t0), 0);  // 00 01
+        dst += dst_stride;
+      }
+      h -= 1;
+    } while (h > 0);
+#endif
     } else {
       uint8_t *d;
-      int16x8_t s11, s12, s13, s14;
-
+      int16x8_t s11;
+#if defined(__aarch64__)
+      int16x8_t s12, s13, s14;
       do {
         __builtin_prefetch(src + 0 * src_stride);
         __builtin_prefetch(src + 1 * src_stride);
@@ -479,8 +556,47 @@ void av1_convolve_x_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
         dst += 8 * dst_stride;
         h -= 8;
       } while (h > 0);
+#else
+    do {
+      t0 = vld1_u8(src);  // a0 a1 a2 a3 a4 a5 a6 a7
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+
+      width = w;
+      s = src + 8;
+      d = dst;
+      __builtin_prefetch(dst);
+
+      do {
+        t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        s11 = s0;
+        s0 = s7;
+
+        s1 = vextq_s16(s11, s7, 1);  // a1 a2 a3 a4 a5 a6 a7 a8
+        s2 = vextq_s16(s11, s7, 2);  // a2 a3 a4 a5 a6 a7 a8 a9
+        s3 = vextq_s16(s11, s7, 3);  // a3 a4 a5 a6 a7 a8 a9 a10
+        s4 = vextq_s16(s11, s7, 4);  // a4 a5 a6 a7 a8 a9 a10 a11
+        s5 = vextq_s16(s11, s7, 5);  // a5 a6 a7 a8 a9 a10 a11 a12
+        s6 = vextq_s16(s11, s7, 6);  // a6 a7 a8 a9 a10 a11 a12 a13
+        s7 = vextq_s16(s11, s7, 7);  // a7 a8 a9 a10 a11 a12 a13 a14
+
+        t0 = convolve8_horiz_8x8(s11, s1, s2, s3, s4, s5, s6, s7, x_filter,
+                                 shift_round_0, shift_by_bits);
+        vst1_u8(d, t0);
+
+        s += 8;
+        d += 8;
+        width -= 8;
+      } while (width > 0);
+      src += src_stride;
+      dst += dst_stride;
+      h -= 1;
+    } while (h > 0);
+#endif
     }
+#if defined(__aarch64__)
   }
+#endif
 }
 
 void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
@@ -505,9 +621,12 @@ void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       filter_params_y, subpel_y_q4 & SUBPEL_MASK);
 
   if (w <= 4) {
-    uint8x8_t d01, d23;
-    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3;
-
+    uint8x8_t d01;
+    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+#if defined(__aarch64__)
+    uint8x8_t d23;
+    int16x4_t s8, s9, s10, d1, d2, d3;
+#endif
     s0 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
     src += src_stride;
     s1 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
@@ -526,6 +645,7 @@ void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
     do {
       s7 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
       src += src_stride;
+#if defined(__aarch64__)
       s8 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
       src += src_stride;
       s9 = vreinterpret_s16_u16(vget_low_u16(vmovl_u8(vld1_u8(src))));
@@ -591,14 +711,41 @@ void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       s5 = s9;
       s6 = s10;
       h -= 4;
+#else
+      __builtin_prefetch(dst + 0 * dst_stride);
+      __builtin_prefetch(src + 0 * src_stride);
+
+      d0 = convolve8_4x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter);
+
+      d01 = vqrshrun_n_s16(vcombine_s16(d0, d0), FILTER_BITS);
+
+      if (w == 4) {
+        vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d01), 0);
+        dst += dst_stride;
+      } else if (w == 2) {
+        vst1_lane_u16((uint16_t *)dst, vreinterpret_u16_u8(d01), 0);
+        dst += dst_stride;
+      }
+      s0 = s1;
+      s1 = s2;
+      s2 = s3;
+      s3 = s4;
+      s4 = s5;
+      s5 = s6;
+      s6 = s7;
+      h -= 1;
+#endif
     } while (h > 0);
   } else {
     int height;
     const uint8_t *s;
     uint8_t *d;
-    uint8x8_t t0, t1, t2, t3;
-    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
-
+    uint8x8_t t0;
+    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+#if defined(__aarch64__)
+    uint8x8_t t1, t2, t3;
+    int16x8_t s8, s9, s10;
+#endif
     do {
       __builtin_prefetch(src + 0 * src_stride);
       __builtin_prefetch(src + 1 * src_stride);
@@ -628,6 +775,7 @@ void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       do {
         s7 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
         s += src_stride;
+#if defined(__aarch64__)
         s8 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
         s += src_stride;
         s9 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(s)));
@@ -670,6 +818,24 @@ void av1_convolve_y_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
         s5 = s9;
         s6 = s10;
         height -= 4;
+#else
+        __builtin_prefetch(d);
+        __builtin_prefetch(s);
+
+        t0 = convolve8_vert_8x4(s0, s1, s2, s3, s4, s5, s6, s7, y_filter);
+
+        vst1_u8(d, t0);
+        d += dst_stride;
+
+        s0 = s1;
+        s1 = s2;
+        s2 = s3;
+        s3 = s4;
+        s4 = s5;
+        s5 = s6;
+        s6 = s7;
+        height -= 1;
+#endif
       } while (height > 0);
       src += 8;
       dst += 8;
@@ -686,7 +852,10 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
                              ConvolveParams *conv_params) {
   int im_dst_stride;
   int width, height;
-  uint8x8_t t0, t1, t2, t3, t4, t5, t6, t7;
+  uint8x8_t t0;
+#if defined(__aarch64__)
+  uint8x8_t t1, t2, t3, t4, t5, t6, t7;
+#endif
 
   DECLARE_ALIGNED(16, int16_t,
                   im_block[(MAX_SB_SIZE + HORIZ_EXTRA_ROWS) * MAX_SB_SIZE]);
@@ -724,13 +893,18 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
   assert(conv_params->round_0 > 0);
 
   if (w <= 4) {
-    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, d0, d1, d2, d3;
+    int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, d0;
+#if defined(__aarch64__)
+    int16x4_t s8, s9, s10, d1, d2, d3;
+#endif
 
     const int16x4_t horiz_const = vdup_n_s16((1 << (bd + FILTER_BITS - 2)));
     const int16x4_t shift_round_0 = vdup_n_s16(-(conv_params->round_0 - 1));
 
     do {
       s = src_ptr;
+
+#if defined(__aarch64__)
       __builtin_prefetch(s + 0 * src_stride);
       __builtin_prefetch(s + 1 * src_stride);
       __builtin_prefetch(s + 2 * src_stride);
@@ -789,16 +963,56 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       src_ptr += 4 * src_stride;
       dst_ptr += 4 * im_dst_stride;
       height -= 4;
+#else
+      int16x8_t tt0;
+
+      __builtin_prefetch(s);
+
+      t0 = vld1_u8(s);  // a0 a1 a2 a3 a4 a5 a6 a7
+      tt0 = vreinterpretq_s16_u16(vmovl_u8(t0));
+      s0 = vget_low_s16(tt0);
+      s4 = vget_high_s16(tt0);
+
+      __builtin_prefetch(dst_ptr);
+      s += 8;
+
+      t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15
+      s7 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(t0)));
+
+      s1 = vext_s16(s0, s4, 1);  // a1 a2 a3 a4
+      s2 = vext_s16(s0, s4, 2);  // a2 a3 a4 a5
+      s3 = vext_s16(s0, s4, 3);  // a3 a4 a5 a6
+      s5 = vext_s16(s4, s7, 1);  // a5 a6 a7 a8
+      s6 = vext_s16(s4, s7, 2);  // a6 a7 a8 a9
+      s7 = vext_s16(s4, s7, 3);  // a7 a8 a9 a10
+
+      d0 = convolve8_4x4_s16(s0, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                             horiz_const, shift_round_0);
+
+      if (w == 4) {
+        vst1_s16(dst_ptr, d0);
+        dst_ptr += im_dst_stride;
+      } else if (w == 2) {
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_s16(d0), 0);
+        dst_ptr += im_dst_stride;
+      }
+
+      src_ptr += src_stride;
+      height -= 1;
+#endif
     } while (height > 0);
   } else {
     int16_t *d_tmp;
+    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, res0;
+#if defined(__aarch64__)
+    int16x8_t s8, s9, s10, res1, res2, res3, res4, res5, res6, res7;
     int16x8_t s11, s12, s13, s14;
-    int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
-    int16x8_t res0, res1, res2, res3, res4, res5, res6, res7;
+#endif
 
     const int16x8_t horiz_const = vdupq_n_s16((1 << (bd + FILTER_BITS - 2)));
     const int16x8_t shift_round_0 = vdupq_n_s16(-(conv_params->round_0 - 1));
 
+#if defined(__aarch64__)
     do {
       __builtin_prefetch(src_ptr + 0 * src_stride);
       __builtin_prefetch(src_ptr + 1 * src_stride);
@@ -886,6 +1100,45 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       dst_ptr += 8 * im_dst_stride;
       height -= 8;
     } while (height > 0);
+#else
+    do {
+      t0 = vld1_u8(src_ptr);
+      s0 = vreinterpretq_s16_u16(vmovl_u8(t0));  // a0 a1 a2 a3 a4 a5 a6 a7
+
+      width = w;
+      s = src_ptr + 8;
+      d_tmp = dst_ptr;
+
+      __builtin_prefetch(dst_ptr);
+
+      do {
+        t0 = vld1_u8(s);  // a8 a9 a10 a11 a12 a13 a14 a15
+        s7 = vreinterpretq_s16_u16(vmovl_u8(t0));
+        int16x8_t sum = s0;
+        s0 = s7;
+
+        s1 = vextq_s16(sum, s7, 1);  // a1 a2 a3 a4 a5 a6 a7 a8
+        s2 = vextq_s16(sum, s7, 2);  // a2 a3 a4 a5 a6 a7 a8 a9
+        s3 = vextq_s16(sum, s7, 3);  // a3 a4 a5 a6 a7 a8 a9 a10
+        s4 = vextq_s16(sum, s7, 4);  // a4 a5 a6 a7 a8 a9 a10 a11
+        s5 = vextq_s16(sum, s7, 5);  // a5 a6 a7 a8 a9 a10 a11 a12
+        s6 = vextq_s16(sum, s7, 6);  // a6 a7 a8 a9 a10 a11 a12 a13
+        s7 = vextq_s16(sum, s7, 7);  // a7 a8 a9 a10 a11 a12 a13 a14
+
+        res0 = convolve8_8x8_s16(sum, s1, s2, s3, s4, s5, s6, s7, x_filter_tmp,
+                                 horiz_const, shift_round_0);
+
+        vst1q_s16(d_tmp, res0);
+
+        s += 8;
+        d_tmp += 8;
+        width -= 8;
+      } while (width > 0);
+      src_ptr += src_stride;
+      dst_ptr += im_dst_stride;
+      height -= 1;
+    } while (height > 0);
+#endif
   }
 
   // vertical
@@ -910,10 +1163,17 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
     width = w;
 
     if (width <= 4) {
-      int16x4_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
-      uint16x4_t d0, d1, d2, d3;
-      uint16x8_t dd0, dd1;
-      uint8x8_t d01, d23;
+      int16x4_t s0, s1, s2, s3, s4, s5, s6, s7;
+      uint16x4_t d0;
+      uint16x8_t dd0;
+      uint8x8_t d01;
+
+#if defined(__aarch64__)
+      int16x4_t s8, s9, s10;
+      uint16x4_t d1, d2, d3;
+      uint16x8_t dd1;
+      uint8x8_t d23;
+#endif
 
       d_u8 = dst_u8_ptr;
       v_s = v_src_ptr;
@@ -931,6 +1191,7 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
       v_s += (7 * im_stride);
 
       do {
+#if defined(__aarch64__)
         load_s16_4x4(v_s, im_stride, &s7, &s8, &s9, &s10);
         v_s += (im_stride << 2);
 
@@ -1008,11 +1269,48 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
         s5 = s9;
         s6 = s10;
         height -= 4;
+#else
+        s7 = vld1_s16(v_s);
+        v_s += im_stride;
+
+        __builtin_prefetch(d_u8 + 0 * dst_stride);
+
+        d0 = convolve8_vert_4x4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter,
+                                    round_shift_vec, offset_const,
+                                    sub_const_vec);
+
+        dd0 = vqrshlq_u16(vcombine_u16(d0, d0), vec_round_bits);
+        d01 = vqmovn_u16(dd0);
+
+        if (w == 4) {
+          vst1_lane_u32((uint32_t *)d_u8, vreinterpret_u32_u8(d01),
+                        0);  // 00 01 02 03
+          d_u8 += dst_stride;
+
+        } else if (w == 2) {
+          vst1_lane_u16((uint16_t *)d_u8, vreinterpret_u16_u8(d01),
+                        0);  // 00 01
+          d_u8 += dst_stride;
+        }
+
+        s0 = s1;
+        s1 = s2;
+        s2 = s3;
+        s3 = s4;
+        s4 = s5;
+        s5 = s6;
+        s6 = s7;
+        height -= 1;
+#endif
       } while (height > 0);
     } else {
       // if width is a multiple of 8 & height is a multiple of 4
-      int16x8_t s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
-      uint8x8_t res0, res1, res2, res3;
+      int16x8_t s0, s1, s2, s3, s4, s5, s6, s7;
+      uint8x8_t res0;
+#if defined(__aarch64__)
+      int16x8_t s8, s9, s10;
+      uint8x8_t res1, res2, res3;
+#endif
 
       do {
         __builtin_prefetch(v_src_ptr + 0 * im_stride);
@@ -1032,6 +1330,7 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
         height = h;
 
         do {
+#if defined(__aarch64__)
           load_s16_8x4(v_s, im_stride, &s7, &s8, &s9, &s10);
           v_s += (im_stride << 2);
 
@@ -1076,6 +1375,28 @@ void av1_convolve_2d_sr_neon(const uint8_t *src, int src_stride, uint8_t *dst,
           s5 = s9;
           s6 = s10;
           height -= 4;
+#else
+          s7 = vld1q_s16(v_s);
+          v_s += im_stride;
+
+          __builtin_prefetch(d_u8 + 0 * dst_stride);
+
+          res0 = convolve8_vert_8x4_s32(s0, s1, s2, s3, s4, s5, s6, s7,
+                                        y_filter, round_shift_vec, offset_const,
+                                        sub_const_vec, vec_round_bits);
+
+          vst1_u8(d_u8, res0);
+          d_u8 += dst_stride;
+
+          s0 = s1;
+          s1 = s2;
+          s2 = s3;
+          s3 = s4;
+          s4 = s5;
+          s5 = s6;
+          s6 = s7;
+          height -= 1;
+#endif
         } while (height > 0);
         v_src_ptr += 8;
         dst_u8_ptr += 8;