| ; |
| ; 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_neon(short input_dc, unsigned char *pred_ptr, |
| ; unsigned char *dst_ptr, int pitch, int stride) |
| ; r0 input_dc |
| ; r1 pred_ptr |
| ; r2 dst_ptr |
| ; r3 pitch |
| ; sp 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], r3 |
| vld1.32 {d2[1]}, [r1], r3 |
| vld1.32 {d4[0]}, [r1], r3 |
| 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]}, [r2], r12 |
| vst1.32 {d2[1]}, [r2], r12 |
| vst1.32 {d4[0]}, [r2], r12 |
| vst1.32 {d4[1]}, [r2] |
| |
| bx lr |
| |
| ENDP |
| END |