1 files changed, 54 insertions, 0 deletions
diff --git a/libvpx/vp8/common/arm/neon/dc_only_idct_add_neon.asm b/libvpx/vp8/common/arm/neon/dc_only_idct_add_neon.asm
new file mode 100644
index 0000000..79ff02c
--- /dev/null
+++ b/libvpx/vp8/common/arm/neon/dc_only_idct_add_neon.asm
@@ -0,0 +1,54 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license and patent
+;  grant that can be found in the LICENSE file in the root of the source
+;  tree. All contributing project authors may be found in the AUTHORS
+;  file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_dc_only_idct_add_neon|
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+;void vp8_dc_only_idct_add_c(short input_dc, unsigned char *pred_ptr,
+;                            int pred_stride, unsigned char *dst_ptr,
+;                            int dst_stride)
+
+; r0  input_dc
+; r1  pred_ptr
+; r2  pred_stride
+; r3  dst_ptr
+; sp  dst_stride
+
+|vp8_dc_only_idct_add_neon| PROC
+    add             r0, r0, #4
+    asr             r0, r0, #3
+    ldr             r12, [sp]
+    vdup.16         q0, r0
+
+    vld1.32         {d2[0]}, [r1], r2
+    vld1.32         {d2[1]}, [r1], r2
+    vld1.32         {d4[0]}, [r1], r2
+    vld1.32         {d4[1]}, [r1]
+
+    vaddw.u8        q1, q0, d2
+    vaddw.u8        q2, q0, d4
+
+    vqmovun.s16     d2, q1
+    vqmovun.s16     d4, q2
+
+    vst1.32         {d2[0]}, [r3], r12
+    vst1.32         {d2[1]}, [r3], r12
+    vst1.32         {d4[0]}, [r3], r12
+    vst1.32         {d4[1]}, [r3]
+
+    bx              lr
+
+    ENDP
+
+    END