1 //****************************************************************************** 2 //* 3 //* Copyright (C) 2015 The Android Open Source Project 4 //* 5 //* Licensed under the Apache License, Version 2.0 (the "License"); 6 //* you may not use this file except in compliance with the License. 7 //* You may obtain a copy of the License at: 8 //* 9 //* http://www.apache.org/licenses/LICENSE-2.0 10 //* 11 //* Unless required by applicable law or agreed to in writing, software 12 //* distributed under the License is distributed on an "AS IS" BASIS, 13 //* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 //* See the License for the specific language governing permissions and 15 //* limitations under the License. 16 //* 17 //***************************************************************************** 18 //* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 //*/ 20 21 ///* 22 ////---------------------------------------------------------------------------- 23 //// File Name : mot_comp_neon.s 24 //// 25 //// Description : This file has motion compensation related 26 //// interpolation functions on Neon + CortexA-8 platform 27 //// 28 //// Reference Document : 29 //// 30 //// Revision History : 31 //// Date Author Detail Description 32 //// ------------ ---------------- ---------------------------------- 33 //// 18 jun 2010 S Hamsalekha Created 34 //// 35 ////------------------------------------------------------------------------- 36 //*/ 37 38 ///* 39 //// ---------------------------------------------------------------------------- 40 //// Include Files 41 //// ---------------------------------------------------------------------------- 42 //*/ 43 // PRESERVE8 44 .text 45 .include "impeg2_neon_macros.s" 46 ///* 47 //// ---------------------------------------------------------------------------- 48 //// Struct/Union Types and Define 49 //// ---------------------------------------------------------------------------- 50 //*/ 51 52 53 ///* 54 //// ---------------------------------------------------------------------------- 55 //// Static Global Data section variables 56 //// ---------------------------------------------------------------------------- 57 //*/ 58 //// -------------------------- NONE -------------------------------------------- 59 60 61 ///* 62 //// ---------------------------------------------------------------------------- 63 //// Static Prototype Functions 64 //// ---------------------------------------------------------------------------- 65 //*/ 66 //// -------------------------- NONE -------------------------------------------- 67 68 ///* 69 //// ---------------------------------------------------------------------------- 70 //// Exported functions 71 //// ---------------------------------------------------------------------------- 72 //*/ 73 74 ///* 75 ////--------------------------------------------------------------------------- 76 //// Function Name : impeg2_memset_8bit_8x8_block_av8() 77 //// 78 //// Detail Description : This routine intialises the Block matrix buffer contents to a 79 //// particular Value. This function also assumes the buffer size 80 //// to be set is 64 Bytes fixed. It also assumes that blk matrix 81 //// used is 64 bit aligned. 82 //// 83 //// Inputs : pi2_blk_mat : Block Pointer 84 //// u2_val : Value with which the block is initialized 85 //// 86 //// Registers Used : v0 87 //// 88 //// Stack Usage : 64 bytes 89 //// 90 //// Outputs : Block Matrix Iniliazed to given value 91 //// 92 //// Return Data : None 93 //// 94 //// Programming Note : This implementation assumes that blk matrix buffer 95 //// is 128 bit aligned 96 ////----------------------------------------------------------------------------- 97 //*/ 98 .global impeg2_memset_8bit_8x8_block_av8 99 impeg2_memset_8bit_8x8_block_av8: 100 push_v_regs 101 102 // ADD x3,x0,#WIDTH_X_SIZE @//x3 is another copy address offsetted 103 104 dup v0.8b, w1 ////x1 is the 8-bit value to be set into 105 106 st1 {v0.8b}, [x0], x2 ////Store the row 1 107 st1 {v0.8b}, [x0], x2 ////Store the row 2 108 st1 {v0.8b}, [x0], x2 ////Store the row 3 109 st1 {v0.8b}, [x0], x2 ////Store the row 4 110 st1 {v0.8b}, [x0], x2 ////Store the row 5 111 st1 {v0.8b}, [x0], x2 ////Store the row 6 112 st1 {v0.8b}, [x0], x2 ////Store the row 7 113 st1 {v0.8b}, [x0], x2 ////Store the row 8 114 115 pop_v_regs 116 ret 117 118 119 120 121 122 123 ///* 124 ////--------------------------------------------------------------------------- 125 //// Function Name : impeg2_memset0_16bit_8x8_linear_block_av8() 126 //// 127 //// Detail Description : memsets resudual buf to 0 128 //// 129 //// Inputs : x0 - pointer to y 130 //// x1 - pointer to u 131 //// x2 - pointer to v 132 //// Registers Used : v0 133 134 //// 135 //// Stack Usage : 64 bytes 136 //// 137 //// Outputs : The Motion Compensated Block 138 //// 139 //// Return Data : None 140 //// 141 //// Programming Note : <program limitation> 142 ////----------------------------------------------------------------------------- 143 //*/ 144 145 146 147 .global impeg2_memset0_16bit_8x8_linear_block_av8 148 149 150 impeg2_memset0_16bit_8x8_linear_block_av8: 151 152 push_v_regs 153 154 movi v0.8h, #0 155 156 //Y data 157 158 st1 {v0.8h} , [x0], #16 //row1 159 160 st1 {v0.8h} , [x0], #16 //row2 161 162 st1 {v0.8h} , [x0], #16 //row3 163 164 st1 {v0.8h} , [x0], #16 //row4 165 166 st1 {v0.8h} , [x0], #16 //row5 167 168 st1 {v0.8h} , [x0], #16 //row6 169 170 st1 {v0.8h} , [x0], #16 //row7 171 172 st1 {v0.8h} , [x0], #16 //row8 173 174 175 176 pop_v_regs 177 ret 178 179 180 181 182
