vp9: neon: add vp9_convolve_copy_neon

Change-Id: I15adbbda15d1842e9f15f21878a5ffbb75c3c0c9

vp9/common/arm/neon/vp9_copy_neon.asm

+;
+;  Copyright (c) 2013 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.
+;
+
+    EXPORT  |vp9_convolve_copy_neon|
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+|vp9_convolve_copy_neon| PROC
+    push                {r4-r5, lr}
+    ldrd                r4, r5, [sp, #28]
+
+    cmp                 r4, #32
+    bgt                 copy64
+    beq                 copy32
+    cmp                 r4, #8
+    bgt                 copy16
+    beq                 copy8
+    b                   copy4
+
+copy64
+    sub                 lr, r1, #32
+    sub                 r3, r3, #32
+copy64_h
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {q0-q1}, [r0]!
+    vld1.8              {q2-q3}, [r0], lr
+    vst1.8              {q0-q1}, [r2@128]!
+    vst1.8              {q2-q3}, [r2@128], r3
+    subs                r5, r5, #1
+    bgt                 copy64_h
+    pop                 {r4-r5, pc}
+
+copy32
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {q0-q1}, [r0], r1
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {q2-q3}, [r0], r1
+    vst1.8              {q0-q1}, [r2@128], r3
+    vst1.8              {q2-q3}, [r2@128], r3
+    subs                r5, r5, #2
+    bgt                 copy32
+    pop                 {r4-r5, pc}
+
+copy16
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {q0}, [r0], r1
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {q1}, [r0], r1
+    vst1.8              {q0}, [r2@128], r3
+    vst1.8              {q1}, [r2@128], r3
+    subs                r5, r5, #2
+    bgt                 copy16
+    pop                 {r4-r5, pc}
+
+copy8
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {d0}, [r0], r1
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {d2}, [r0], r1
+    vst1.8              {d0}, [r2@64], r3
+    vst1.8              {d2}, [r2@64], r3
+    subs                r5, r5, #2
+    bgt                 copy8
+    pop                 {r4-r5, pc}
+
+copy4
+    ldr                 r12, [r0], r1
+    str                 r12, [r2], r3
+    subs                r5, r5, #1
+    bgt                 copy4
+    pop                 {r4-r5, pc}
+    ENDP
+
+    END

vp9/common/vp9_rtcd_defs.sh

@@ -268,7 +268,7 @@ specialize vp9_blend_b
 # Sub Pixel Filters
 #
 prototype void vp9_convolve_copy "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
-specialize vp9_convolve_copy $sse2_x86inc
+specialize vp9_convolve_copy $sse2_x86inc neon
 
 prototype void vp9_convolve_avg "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
 specialize vp9_convolve_avg $sse2_x86inc

vp9/vp9_common.mk

@@ -98,5 +98,6 @@ VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_dc_only_idct_add_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_short_idct4x4_add_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_short_idct8x8_add_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_mb_lpf_neon$(ASM)
+VP9_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp9_copy_neon$(ASM)
 
 $(eval $(call rtcd_h_template,vp9_rtcd,vp9/common/vp9_rtcd_defs.sh))