1 files changed, 102 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/arm/blend_a64_hmask_neon.c b/third_party/aom/av1/common/arm/blend_a64_hmask_neon.c
new file mode 100644
index 0000000000..7afb1a909d
--- /dev/null
+++ b/third_party/aom/av1/common/arm/blend_a64_hmask_neon.c
@@ -0,0 +1,102 @@
+/*
+ *
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <arm_neon.h>
+#include <assert.h>
+
+#include "config/aom_dsp_rtcd.h"
+
+#include "aom/aom_integer.h"
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_dsp/arm/blend_neon.h"
+#include "aom_dsp/arm/mem_neon.h"
+
+void aom_blend_a64_hmask_neon(uint8_t *dst, uint32_t dst_stride,
+                              const uint8_t *src0, uint32_t src0_stride,
+                              const uint8_t *src1, uint32_t src1_stride,
+                              const uint8_t *mask, int w, int h) {
+  assert(IMPLIES(src0 == dst, src0_stride == dst_stride));
+  assert(IMPLIES(src1 == dst, src1_stride == dst_stride));
+
+  assert(h >= 2);
+  assert(w >= 2);
+  assert(IS_POWER_OF_TWO(h));
+  assert(IS_POWER_OF_TWO(w));
+
+  if (w > 8) {
+    do {
+      int i = 0;
+      do {
+        uint8x16_t m0 = vld1q_u8(mask + i);
+        uint8x16_t s0 = vld1q_u8(src0 + i);
+        uint8x16_t s1 = vld1q_u8(src1 + i);
+
+        uint8x16_t blend = alpha_blend_a64_u8x16(m0, s0, s1);
+
+        vst1q_u8(dst + i, blend);
+
+        i += 16;
+      } while (i < w);
+
+      src0 += src0_stride;
+      src1 += src1_stride;
+      dst += dst_stride;
+    } while (--h != 0);
+  } else if (w == 8) {
+    const uint8x8_t m0 = vld1_u8(mask);
+    do {
+      uint8x8_t s0 = vld1_u8(src0);
+      uint8x8_t s1 = vld1_u8(src1);
+
+      uint8x8_t blend = alpha_blend_a64_u8x8(m0, s0, s1);
+
+      vst1_u8(dst, blend);
+
+      src0 += src0_stride;
+      src1 += src1_stride;
+      dst += dst_stride;
+    } while (--h != 0);
+  } else if (w == 4) {
+    const uint8x8_t m0 = load_unaligned_dup_u8_4x2(mask);
+    do {
+      uint8x8_t s0 = load_unaligned_u8_4x2(src0, src0_stride);
+      uint8x8_t s1 = load_unaligned_u8_4x2(src1, src1_stride);
+
+      uint8x8_t blend = alpha_blend_a64_u8x8(m0, s0, s1);
+
+      store_u8x4_strided_x2(dst, dst_stride, blend);
+
+      src0 += 2 * src0_stride;
+      src1 += 2 * src1_stride;
+      dst += 2 * dst_stride;
+      h -= 2;
+    } while (h != 0);
+  } else if (w == 2 && h >= 16) {
+    const uint8x8_t m0 = vreinterpret_u8_u16(vld1_dup_u16((uint16_t *)mask));
+    do {
+      uint8x8_t s0 = load_unaligned_u8_2x2(src0, src0_stride);
+      uint8x8_t s1 = load_unaligned_u8_2x2(src1, src1_stride);
+
+      uint8x8_t blend = alpha_blend_a64_u8x8(m0, s0, s1);
+
+      store_u8x2_strided_x2(dst, dst_stride, blend);
+
+      src0 += 2 * src0_stride;
+      src1 += 2 * src1_stride;
+      dst += 2 * dst_stride;
+      h -= 2;
+    } while (h != 0);
+  } else {
+    aom_blend_a64_hmask_c(dst, dst_stride, src0, src0_stride, src1, src1_stride,
+                          mask, w, h);
+  }
+}