| /*! |
| * \copy |
| * Copyright (c) 2013, Cisco Systems |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifdef HAVE_NEON |
| #include "arm_arch_common_macro.S" |
| |
| |
| WELS_ASM_FUNC_BEGIN WelsProcessingSampleSad8x8_neon |
| stmdb sp!, {lr} |
| //Loading a horizontal line data (8 bytes) |
| vld1.8 {d0}, [r0], r1 |
| vld1.8 {d1}, [r2], r3 |
| |
| //Do the SAD for 8 bytes |
| vabdl.u8 q1, d0, d1 |
| |
| mov lr, #7 |
| pixel_sad_8x8_loop0: |
| |
| //Loading a horizontal line data (8 bytes) |
| vld1.8 {d0}, [r0], r1 |
| vld1.8 {d1}, [r2], r3 |
| |
| subs lr, #1 |
| |
| //Do the SAD for 8 bytes |
| vabal.u8 q1, d0, d1 |
| bne pixel_sad_8x8_loop0 |
| |
| vadd.u16 d2, d3 |
| vpaddl.u16 d2, d2 |
| vpaddl.u32 d2, d2 |
| vmov.u32 r0, d2[0]//TBO... |
| |
| ldmia sp!, {lr} |
| WELS_ASM_FUNC_END |
| |
| #endif |
