1/*! 2 * \copy 3 * Copyright (c) 2013, Cisco Systems 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33#ifdef HAVE_NEON 34#include "arm_arch_common_macro.S" 35 36 37WELS_ASM_FUNC_BEGIN WelsProcessingSampleSad8x8_neon 38 stmdb sp!, {lr} 39 //Loading a horizontal line data (8 bytes) 40 vld1.8 {d0}, [r0], r1 41 vld1.8 {d1}, [r2], r3 42 43 //Do the SAD for 8 bytes 44 vabdl.u8 q1, d0, d1 45 46 mov lr, #7 47pixel_sad_8x8_loop0: 48 49 //Loading a horizontal line data (8 bytes) 50 vld1.8 {d0}, [r0], r1 51 vld1.8 {d1}, [r2], r3 52 53 subs lr, #1 54 55 //Do the SAD for 8 bytes 56 vabal.u8 q1, d0, d1 57 bne pixel_sad_8x8_loop0 58 59 vadd.u16 d2, d3 60 vpaddl.u16 d2, d2 61 vpaddl.u32 d2, d2 62 vmov.u32 r0, d2[0]//TBO... 63 64 ldmia sp!, {lr} 65WELS_ASM_FUNC_END 66 67#endif 68