ref: a1a3873a62b8dbaed584b5b02e73ceae69f26ba0
dir: /codec/common/arm64/expand_picture_aarch64_neon.S/
/*! * \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_AARCH64 #include "arm_arch64_common_macro.S" WELS_ASM_AARCH64_FUNC_BEGIN ExpandPictureLuma_AArch64_neon mov x7, x0 mov x8, x3 add x4, x7, x2 sub x4, x4, #1 mov x10, #16 //For the left and right expand _expand_picture_luma_loop2: sub x5, x7, #32 add x6, x4, #1 ld1r {v0.16b}, [x7], x1 ld1r {v2.16b}, [x4], x1 mov v1.16b, v0.16b mov v3.16b, v2.16b st2 {v0.16b, v1.16b}, [x5] st2 {v2.16b, v3.16b}, [x6] sub x8, x8, #1 cbnz x8, _expand_picture_luma_loop2 //for the top and bottom expand add x2, x2, #64 sub x0, x0, #32 madd x4, x1, x3, x0 sub x4, x4, x1 _expand_picture_luma_loop0: mov x5, #32 msub x5, x5, x1, x0 add x6, x4, x1 ld1 {v0.16b}, [x0], x10 ld1 {v1.16b}, [x4], x10 mov x8, #32 _expand_picture_luma_loop1: st1 {v0.16b}, [x5], x1 st1 {v1.16b}, [x6], x1 sub x8, x8, #1 cbnz x8, _expand_picture_luma_loop1 sub x2, x2, #16 cbnz x2, _expand_picture_luma_loop0 WELS_ASM_AARCH64_FUNC_END WELS_ASM_AARCH64_FUNC_BEGIN ExpandPictureChroma_AArch64_neon //Save the dst mov x7, x0 mov x8, x3 mov x10, #16 add x4, x7, x2 sub x4, x4, #1 //For the left and right expand _expand_picture_chroma_loop2: sub x5, x7, #16 add x6, x4, #1 ld1r {v0.16b}, [x7], x1 ld1r {v1.16b}, [x4], x1 st1 {v0.16b}, [x5] st1 {v1.16b}, [x6] sub x8, x8, #1 cbnz x8, _expand_picture_chroma_loop2 //for the top and bottom expand add x2, x2, #32 // mov x9, x2 mov x11, #15 bic x2, x2, x11 // sub x0, x0, #16 madd x4, x1, x3, x0 sub x4, x4, x1 _expand_picture_chroma_loop0: mov x5, #16 msub x5, x5, x1, x0 add x6, x4, x1 ld1 {v0.16b}, [x0], x10 ld1 {v1.16b}, [x4], x10 mov x8, #16 _expand_picture_chroma_loop1: st1 {v0.16b}, [x5], x1 st1 {v1.16b}, [x6], x1 sub x8, x8, #1 cbnz x8, _expand_picture_chroma_loop1 sub x2, x2, #16 cbnz x2, _expand_picture_chroma_loop0 and x9, x9, #15 sub x9, x9, #8 cbnz x9, _expand_picture_chroma_end mov x5, #16 msub x5, x5, x1, x0 add x6, x4, x1 ld1 {v0.8b}, [x0] ld1 {v1.8b}, [x4] mov x8, #16 _expand_picture_chroma_loop3: st1 {v0.8b}, [x5], x1 st1 {v1.8b}, [x6], x1 sub x8, x8, #1 cbnz x8, _expand_picture_chroma_loop3 _expand_picture_chroma_end: WELS_ASM_AARCH64_FUNC_END #endif