1 files changed, 68 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp9/common/arm/neon/vp9_iht8x8_add_neon.c b/media/libvpx/libvpx/vp9/common/arm/neon/vp9_iht8x8_add_neon.c
new file mode 100644
index 0000000000..46ee632e01
--- /dev/null
+++ b/media/libvpx/libvpx/vp9/common/arm/neon/vp9_iht8x8_add_neon.c
@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include <assert.h>
+
+#include "./vp9_rtcd.h"
+#include "./vpx_config.h"
+#include "vp9/common/vp9_common.h"
+#include "vp9/common/arm/neon/vp9_iht_neon.h"
+#include "vpx_dsp/arm/idct_neon.h"
+#include "vpx_dsp/arm/mem_neon.h"
+#include "vpx_dsp/arm/transpose_neon.h"
+
+void vp9_iht8x8_64_add_neon(const tran_low_t *input, uint8_t *dest, int stride,
+                            int tx_type) {
+  const int16x8_t cospis = vld1q_s16(kCospi);
+  const int16x4_t cospis0 = vget_low_s16(cospis);   // cospi 0, 8, 16, 24
+  const int16x4_t cospis1 = vget_high_s16(cospis);  // cospi 4, 12, 20, 28
+  int16x8_t a[8];
+
+  a[0] = load_tran_low_to_s16q(input + 0 * 8);
+  a[1] = load_tran_low_to_s16q(input + 1 * 8);
+  a[2] = load_tran_low_to_s16q(input + 2 * 8);
+  a[3] = load_tran_low_to_s16q(input + 3 * 8);
+  a[4] = load_tran_low_to_s16q(input + 4 * 8);
+  a[5] = load_tran_low_to_s16q(input + 5 * 8);
+  a[6] = load_tran_low_to_s16q(input + 6 * 8);
+  a[7] = load_tran_low_to_s16q(input + 7 * 8);
+
+  transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
+
+  switch (tx_type) {
+    case DCT_DCT:
+      idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
+      transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
+      idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
+      break;
+
+    case ADST_DCT:
+      idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
+      transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
+      iadst8(a);
+      break;
+
+    case DCT_ADST:
+      iadst8(a);
+      transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
+      idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
+      break;
+
+    default:
+      assert(tx_type == ADST_ADST);
+      iadst8(a);
+      transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
+      iadst8(a);
+      break;
+  }
+
+  idct8x8_add8x8_neon(a, dest, stride);
+}