10d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@/***************************************************************************** 20d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 30d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore 40d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 50d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* Licensed under the Apache License, Version 2.0 (the "License"); 60d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* you may not use this file except in compliance with the License. 70d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* You may obtain a copy of the License at: 80d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 90d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* http://www.apache.org/licenses/LICENSE-2.0 100d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 110d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* Unless required by applicable law or agreed to in writing, software 120d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* distributed under the License is distributed on an "AS IS" BASIS, 130d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 140d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* See the License for the specific language governing permissions and 150d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* limitations under the License. 160d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 170d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@*****************************************************************************/ 180d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@/** 190d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@******************************************************************************* 200d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @file 210d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* ihevc_intra_pred_filters_planar.s 220d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 230d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @brief 240d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* contains function definitions for inter prediction interpolation. 250d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* functions are coded using neon intrinsics and can be compiled using 260d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 270d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* rvct 280d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 290d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @author 300d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* akshaya mukund 310d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 320d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @par list of functions: 330d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 340d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 350d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @remarks 360d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* none 370d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 380d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@******************************************************************************* 390d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@*/ 400d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@/** 410d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@******************************************************************************* 420d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 430d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @brief 440d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* luma intraprediction filter for planar input 450d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 460d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @par description: 470d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 480d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[in] pu1_ref 490d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* uword8 pointer to the source 500d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 510d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[out] pu1_dst 520d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* uword8 pointer to the destination 530d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 540d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[in] src_strd 550d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* integer source stride 560d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 570d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[in] dst_strd 580d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* integer destination stride 590d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 600d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[in] pi1_coeff 610d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* word8 pointer to the planar coefficients 620d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 630d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[in] nt 640d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* size of tranform block 650d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 660d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @param[in] mode 670d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* type of filtering 680d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 690d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @returns 700d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 710d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* @remarks 720d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* none 730d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@* 740d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@******************************************************************************* 750d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@*/ 760d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 770d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@void ihevc_intra_pred_luma_planar(uword8* pu1_ref, 780d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ word32 src_strd, 790d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ uword8* pu1_dst, 800d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ word32 dst_strd, 810d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ word32 nt, 820d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ word32 mode, 830d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ word32 pi1_coeff) 840d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@**************variables vs registers***************************************** 850d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@r0 => *pu1_ref 860d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@r1 => src_strd 870d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@r2 => *pu1_dst 880d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@r3 => dst_strd 890d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 900d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@stack contents from #40 910d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ nt 920d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ mode 930d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ pi1_coeff 940d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 950d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar.text 960d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar.align 4 970d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 980d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 990d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1000d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1010d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar.globl ihevc_intra_pred_chroma_planar_a9q 1020d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar.extern gau1_ihevc_planar_factor 1030d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1040d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakargau1_ihevc_planar_factor_addr: 1050d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar.long gau1_ihevc_planar_factor - ulbl1 - 8 1060d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1070d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar.type ihevc_intra_pred_chroma_planar_a9q, %function 1080d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1090d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakarihevc_intra_pred_chroma_planar_a9q: 1100d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1110d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar stmfd sp!, {r4-r12, r14} @stack stores the values of the arguments 1120d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1130d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r4,[sp,#40] @loads nt 1140d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r11, gau1_ihevc_planar_factor_addr @loads table of coeffs 1150d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakarulbl1: 1160d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r11,r11,pc 1170d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1180d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar clz r5, r4 1190d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar rsb r5, r5, #32 1200d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.16 q7, r5 1210d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vneg.s16 q7, q7 @shr value (so vneg) 1220d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.8 d2, r4 @nt 1230d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 q8, r4 @nt 1240d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1250d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar sub r6, r4, #1 @nt-1 1260d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r6, r0,r6,lsl #1 @2*(nt-1) 1270d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r7, [r6] 1280d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d0, r7 @src[nt-1] 1290d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1300d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r6, r4, r4,lsl #1 @3nt 1310d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r6, r6, #1 @3nt + 1 1320d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar lsl r6,r6,#1 @2*(3nt + 1) 1330d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1340d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r6, r6, r0 1350d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r7, [r6] 1360d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d1, r7 @src[3nt+1] 1370d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1380d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1390d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r6, r4, r4 @2nt 1400d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r14, r6, #1 @2nt+1 1410d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar lsl r14,#1 @2*(2nt+1) 1420d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar sub r6, r6, #1 @2nt-1 1430d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar lsl r6,#1 @2*(2nt-1) 1440d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r6, r6, r0 @&src[2nt-1] 1450d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r14, r14, r0 @&src[2nt+1] 1460d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1470d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r8, #1 @row+1 (row is first 0) 1480d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar sub r9, r4, r8 @nt-1-row (row is first 0) 1490d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1500d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s8 d5, r8 @row + 1 1510d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s8 d6, r9 @nt - 1 - row 1520d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmov d7, d5 @mov #1 to d7 to used for inc for row+1 and dec for nt-1-row 1530d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1540d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r12, r11, #1 @coeffs (to be reloaded after every row) 1550d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r1, r4 @nt (row counter) (dec after every row) 1560d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r5, r2 @dst (to be reloaded after every row and inc by dst_strd) 1570d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r10, #8 @increment for the coeffs 1580d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r0, r14 @&src[2nt+1] (to be reloaded after every row) 1590d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1600d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar cmp r4, #4 1610d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar beq tf_sz_4 1620d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1630d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1640d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1650d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r10,r6 1660d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakartf_sz_8_16: 1670d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vld1.s8 {d10,d11}, [r14]! @load src[2nt+1+col] 1680d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vld1.s8 d8, [r12]! 1690d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmov d9,d8 1700d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vzip.8 d8,d9 1710d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d30, d2, d8 @[nt-1-col] 1720d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d31, d2, d9 1730d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1740d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1750d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1760d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1770d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakarloop_sz_8_16: 1780d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1790d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r7, [r6], #-2 @src[2nt-1-row] (dec to take into account row) 1800d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q6, d5, d0 @(row+1) * src[nt-1] 1810d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r11, [r6], #-2 @src[2nt-1-row] (dec to take into account row) 1820d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d6, d10 @(nt-1-row) * src[2nt+1+col] 1830d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d4, r7 @src[2nt-1-row] 1840d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d8, d1 @(col+1) * src[3nt+1] 1850d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d3, r11 @src[2nt-1-row] 1860d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d30, d4 @(nt-1-col) * src[2nt-1-row] 1870d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1880d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1890d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1900d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q14,d5,d0 1910d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r7, [r6], #-2 @src[2nt-1-row] (dec to take into account row) 1920d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q14,d6,d11 1930d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.s8 d18, d5, d7 @row++ [(row+1)++]c 1940d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1950d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 1960d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q14,d31,d4 1970d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d19, d6, d7 @[nt-1-row]-- 1980d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q14,d9,d1 1990d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d4, r7 @src[2nt-1-row] 2000d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2010d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q13, d18, d0 @(row+1) * src[nt-1] 2020d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q6, q6, q8 @add (nt) 2030d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q13, d19, d10 @(nt-1-row) * src[2nt+1+col] 2040d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q6, q6, q7 @shr 2050d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q13, d8, d1 @(col+1) * src[3nt+1] 2060d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q14,q14,q8 2070d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q13, d30, d3 @(nt-1-col) * src[2nt-1-row] 2080d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q14,q14,q7 2090d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2100d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2110d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2120d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2130d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2140d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q12,d18,d0 2150d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.s8 d5, d18, d7 @row++ [(row+1)++] 2160d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q12,d19,d11 2170d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d6, d19, d7 @[nt-1-row]-- 2180d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q12,d9,d1 2190d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d12, q6 2200d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q12,d31,d3 2210d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d13,q14 2220d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2230d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2240d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2250d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2260d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q13, q13, q8 @add (nt) 2270d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q11, d5, d0 @(row+1) * src[nt-1] 2280d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q13, q13, q7 @shr 2290d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q11, d6, d10 @(nt-1-row) * src[2nt+1+col] 2300d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vst1.s32 {d12,d13}, [r2], r3 2310d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q11, d8, d1 @(col+1) * src[3nt+1] 2320d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q12,q12,q8 2330d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q11, d30, d4 @(nt-1-col) * src[2nt-1-row] 2340d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q12,q12,q7 2350d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2360d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q10,d5,d0 2370d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.s8 d18, d5, d7 @row++ [(row+1)++]c 2380d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q10,d6,d11 2390d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d19, d6, d7 @[nt-1-row]-- 2400d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q10,d31,d4 2410d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2420d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r11, [r6], #-2 @src[2nt-1-row] (dec to take into account row) 2430d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q10,d9,d1 2440d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d3, r11 @src[2nt-1-row] 2450d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q11, q11, q8 @add (nt) 2460d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2470d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q6, d18, d0 @(row+1) * src[nt-1] 2480d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d26, q13 2490d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d19, d10 @(nt-1-row) * src[2nt+1+col] 2500d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d27,q12 2510d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2520d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d8, d1 @(col+1) * src[3nt+1] 2530d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q11, q11, q7 @shr 2540d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2550d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d30, d3 @(nt-1-col) * src[2nt-1-row] 2560d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q10,q10,q8 2570d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2580d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q14,d18,d0 2590d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vst1.s32 {d26,d27}, [r2], r3 2600d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2610d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q14,d19,d11 2620d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.s8 d5, d18, d7 @row++ [(row+1)++] 2630d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2640d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d6, d19, d7 @[nt-1-row]-- 2650d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q14,d9,d1 2660d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2670d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q14,d31,d3 2680d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q10,q10,q7 2690d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2700d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2710d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q6, q6 ,q8 @add (nt) 2720d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d22, q11 2730d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2740d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2750d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.i16 q14,q14,q8 2760d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d23,q10 2770d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2780d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2790d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q6, q6, q7 @shr 2800d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vst1.s32 {d22,d23}, [r2], r3 2810d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vshl.s16 q14,q14,q7 2820d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2830d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2840d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2850d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2860d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2870d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d20, q6 2880d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmovn.i16 d21,q14 2890d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2900d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vst1.s32 {d20,d21}, [r2], r3 2910d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2920d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2930d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar subs r1, r1, #4 2940d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2950d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar bne loop_sz_8_16 2960d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2970d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2980d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 2990d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3000d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar cmp r4,#16 3010d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3020d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar bne end_loop 3030d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3040d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3050d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar sub r4,#16 3060d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s8 d5, r8 @row + 1 3070d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s8 d6, r9 @nt - 1 - row 3080d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmov d7, d5 @mov #1 to d7 to used for inc for row+1 and dec for nt-1-row 3090d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3100d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r6,r10 3110d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar mov r1,#16 3120d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar sub r2,r2,r3,lsl #4 3130d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar add r2,r2,#16 3140d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3150d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vld1.s8 {d10,d11}, [r14]! @load src[2nt+1+col] 3160d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vld1.s8 d8, [r12]! 3170d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmov d9,d8 3180d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vzip.8 d8,d9 3190d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d30, d2, d8 @[nt-1-col] 3200d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d31, d2, d9 3210d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3220d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar beq loop_sz_8_16 3230d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3240d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3250d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3260d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakartf_sz_4: 3270d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vld1.s8 d10, [r14] @load src[2nt+1+col] 3280d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vld1.s8 d8, [r12], r10 @load 8 coeffs [col+1] 3290d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmov d9,d8 3300d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vzip.8 d8,d9 3310d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakarloop_sz_4: 3320d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar @mov r10, #4 @reduce inc to #4 for 4x4 3330d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldr r7, [r6], #-2 @src[2nt-1-row] (dec to take into account row) 3340d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vdup.s16 d4, r7 @src[2nt-1-row] 3350d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3360d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d9, d2, d8 @[nt-1-col] 3370d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3380d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmull.u8 q6, d5, d0 @(row+1) * src[nt-1] 3390d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d6, d10 @(nt-1-row) * src[2nt+1+col] 3400d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d8, d1 @(col+1) * src[3nt+1] 3410d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vmlal.u8 q6, d9, d4 @(nt-1-col) * src[2nt-1-row] 3420d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ vadd.i16 q6, q6, q8 @add (nt) 3430d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ vshl.s16 q6, q6, q7 @shr 3440d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar@ vmovn.i16 d12, q6 3450d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vrshrn.s16 d12,q6,#3 3460d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3470d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vst1.s32 {d12}, [r2], r3 3480d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3490d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vadd.s8 d5, d5, d7 @row++ [(row+1)++] 3500d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar vsub.s8 d6, d6, d7 @[nt-1-row]-- 3510d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar subs r1, r1, #1 3520d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3530d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar bne loop_sz_4 3540d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3550d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakarend_loop: 3560d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar ldmfd sp!,{r4-r12,r15} @reload the registers from sp 3570d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3580d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3590d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3600d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3610d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3620d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 3630d8951cef4b1a1dbf4ff5ba3e8796cf1d4503098Harish Mahendrakar 364