1 @/***************************************************************************** 2 @* 3 @* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore 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 @/** 19 @******************************************************************************* 20 @* ,:file 21 @* ihevc_sao_edge_offset_class0_chroma.s 22 @* 23 @* ,:brief 24 @* Contains function definitions for inter prediction interpolation. 25 @* Functions are coded using NEON intrinsics and can be compiled using@ ARM 26 @* RVCT 27 @* 28 @* ,:author 29 @* Parthiban V 30 @* 31 @* ,:par List of Functions: 32 @* 33 @* 34 @* ,:remarks 35 @* None 36 @* 37 @******************************************************************************* 38 @*/ 39 @void ihevc_sao_edge_offset_class0_chroma(UWORD8 *pu1_src, 40 @ WORD32 src_strd, 41 @ UWORD8 *pu1_src_left, 42 @ UWORD8 *pu1_src_top, 43 @ UWORD8 *pu1_src_top_left, 44 @ UWORD8 *pu1_src_top_right, 45 @ UWORD8 *pu1_src_bot_left, 46 @ UWORD8 *pu1_avail, 47 @ WORD8 *pi1_sao_offset_u, 48 @ WORD8 *pi1_sao_offset_v, 49 @ WORD32 wd, 50 @ 51 @**************Variables Vs Registers***************************************** 52 @r0 => *pu1_src 53 @r1 => src_strd 54 @r2 => *pu1_src_left 55 @r3 => *pu1_src_top 56 @r4 => *pu1_src_top_left 57 @r7 => *pu1_avail 58 @r8 => *pi1_sao_offset_u 59 @r5 => *pi1_sao_offset_v 60 @r9 => wd 61 @r10=> ht 62 63 .text 64 .p2align 2 65 66 .extern gi1_table_edge_idx 67 .globl ihevc_sao_edge_offset_class0_chroma_a9q 68 69 gi1_table_edge_idx_addr: 70 .long gi1_table_edge_idx - ulbl1 - 8 71 72 ihevc_sao_edge_offset_class0_chroma_a9q: 73 74 75 STMFD sp!, {r4-r12, r14} @stack stores the values of the arguments 76 LDR r9,[sp,#64] @Loads wd 77 78 LDR r4,[sp,#40] @Loads pu1_src_top_left 79 ADD r11,r3,r9 @pu1_src_top[wd] 80 81 LDR r10,[sp,#68] @Loads ht 82 VMOV.I8 Q1,#2 @const_2 = vdupq_n_s8(2) 83 LDRH r12,[r11,#-2] @pu1_src_top[wd - 1] 84 85 LDR r7,[sp,#52] @Loads pu1_avail 86 VMOV.I16 Q2,#0 @const_min_clip = vdupq_n_s16(0) 87 STRH r12,[r4] @*pu1_src_top_left = pu1_src_top[wd - 1] 88 89 LDR r8,[sp,#56] @Loads pi1_sao_offset_u 90 VMOV.I16 Q3,#255 @const_max_clip = vdupq_n_u16((1 << bit_depth) - 1) 91 SUB r4,r10,#1 @(ht - 1) 92 93 LDR r14, gi1_table_edge_idx_addr @table pointer 94 ulbl1: 95 add r14,r14,pc 96 VMOV.S8 Q4,#0xFF @au1_mask = vdupq_n_s8(-1) 97 MUL r4,r4,r1 @(ht - 1) * src_strd 98 99 LDR r5,[sp,#60] @Loads pi1_sao_offset_v 100 VLD1.8 D11,[r8] @offset_tbl = vld1_s8(pi1_sao_offset_u) 101 ADD r4,r4,r0 @pu1_src[(ht - 1) * src_strd] 102 103 MOV r6,r0 @pu1_src_org 104 VLD1.8 D10,[r14] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) 105 MOV r12,r9 @Move wd to r12 for loop count 106 107 SRC_TOP_LOOP: @wd is always multiple of 8 108 VLD1.8 D0,[r4]! @Load pu1_src[(ht - 1) * src_strd + col] 109 SUBS r12,r12,#8 @Decrement the loop counter by 8 110 VST1.8 D0,[r3]! @Store to pu1_src_top[col] 111 BNE SRC_TOP_LOOP 112 ADD r6,r6,#14 @pu1_src_org[14] 113 114 MOV r3,r2 @pu1_src_left backup to reload later 115 VLD1.8 D0,[r5] @offset_tbl = vld1_s8(pi1_sao_offset_v) 116 CMP r9,#16 @Compare wd with 16 117 118 BLT WIDTH_RESIDUE @If not jump to WIDTH_RESIDUE where loop is unrolled for 8 case 119 120 MOV r8,r9 @move wd to r8 for loop count 121 122 WIDTH_LOOP_16: 123 CMP r8,r9 @if(col == wd) 124 BNE AU1_MASK_FF @jump to else part 125 LDRB r12,[r7] @pu1_avail[0] 126 VMOV.8 D8[0],r12 @vsetq_lane_s8(pu1_avail[0], au1_mask, 0) 127 VMOV.8 D8[1],r12 @vsetq_lane_s8(pu1_avail[0], au1_mask, 1) 128 B SKIP_AU1_MASK_FF @Skip the else part 129 130 AU1_MASK_FF: 131 MOV r12,#-1 @move -1 to r12 132 VMOV.16 D8[0],r12 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) 133 134 SKIP_AU1_MASK_FF: 135 CMP r8,#16 @If col == 16 136 BNE SKIP_MASKING_IF_NOT16 @If not skip masking 137 LDRB r12,[r7,#1] @pu1_avail[1] 138 VMOV.8 D9[6],r12 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 14) 139 VMOV.8 D9[7],r12 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) 140 141 SKIP_MASKING_IF_NOT16: 142 MOV r12,r0 @pu1_src_cpy = pu1_src 143 MOV r4,r10 @move ht to r4 for loop count 144 145 PU1_SRC_LOOP: 146 LDRH r11,[r2] @load pu1_src_left since ht - row =0 when it comes first pu1_src_left is incremented later 147 VLD1.8 D12,[r12]! @pu1_cur_row = vld1q_u8(pu1_src_cpy) 148 VLD1.8 D13,[r12],r1 @pu1_cur_row = vld1q_u8(pu1_src_cpy) 149 SUB r12,#8 150 SUB r5,r9,r8 @wd - col 151 152 SUB r14,r10,r4 @ht - row 153 VMOV.16 D15[3],r11 @vsetq_lane_u16(pu1_src_left[ht - row], pu1_cur_row_tmp, 14,15) 154 MUL r14,r14,r1 @(ht - row) * src_strd 155 156 VLD1.8 D30,[r12]! @II Iteration pu1_cur_row = vld1q_u8(pu1_src_cpy) 157 VLD1.8 D31,[r12] @II Iteration pu1_cur_row = vld1q_u8(pu1_src_cpy) 158 SUB r12,#8 159 VEXT.8 Q7,Q7,Q6,#14 @pu1_cur_row_tmp = vextq_u8(pu1_cur_row_tmp, pu1_cur_row, 14) 160 SUB r12,r12,r1 161 162 LDRH r11,[r2,#2] @II load pu1_src_left since ht - row =0 163 VCGT.U8 Q8,Q6,Q7 @vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 164 ADD r5,r14,r5 @(ht - row) * src_strd + (wd - col) 165 166 VMOV.16 D29[3],r11 @II vsetq_lane_u16(pu1_src_left[ht - row], pu1_cur_row_tmp, 14,15) 167 VCLT.U8 Q9,Q6,Q7 @vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 168 169 LDRH r14,[r6,r5] @pu1_src_org[(ht - row) * src_strd + 14 + (wd - col)] 170 VSUB.U8 Q10,Q9,Q8 @sign_left = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 171 SUB r4,r4,#1 172 173 LDRB r11,[r12,#16] @pu1_src_cpy[16] 174 VEXT.8 Q14,Q14,Q15,#14 @II pu1_cur_row_tmp = vextq_u8(pu1_cur_row_tmp, pu1_cur_row, 14) 175 176 VMOV.8 D14[0],r11 @pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[16], pu1_cur_row_tmp, 0) 177 VCGT.U8 Q13,Q15,Q14 @II vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 178 179 LDRB r11,[r12,#17] @pu1_src_cpy[17] 180 VCLT.U8 Q12,Q15,Q14 @II vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 181 STRH r14,[r2],#2 @pu1_src_left[(ht - row)] = au1_src_left_tmp[(ht - row)] 182 183 ADD r12,r12,r1 184 VMOV.8 D14[1],r11 @pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[17], pu1_cur_row_tmp, 1) 185 LDRB r11,[r12,#16] @II pu1_src_cpy[16] 186 187 VEXT.8 Q7,Q6,Q7,#2 @pu1_cur_row_tmp = vextq_u8(pu1_cur_row, pu1_cur_row_tmp, 2) 188 VMOV.8 D28[0],r11 @II pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[16], pu1_cur_row_tmp, 0) 189 190 LDRB r11,[r12,#17] @II pu1_src_cpy[17] 191 VCGT.U8 Q8,Q6,Q7 @vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 192 SUB r12,r12,r1 193 194 VCLT.U8 Q9,Q6,Q7 @vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 195 VMOV.8 D28[1],r11 @II pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[17], pu1_cur_row_tmp, 1) 196 197 VSUB.U8 Q11,Q9,Q8 @sign_right = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 198 VEXT.8 Q14,Q15,Q14,#2 @II pu1_cur_row_tmp = vextq_u8(pu1_cur_row, pu1_cur_row_tmp, 2) 199 200 VADD.U8 Q7,Q1,Q10 @edge_idx = vaddq_s8(const_2, sign_left) 201 202 VADD.U8 Q7,Q7,Q11 @edge_idx = vaddq_s8(edge_idx, sign_right) 203 VTBL.8 D14,{D10},D14 @vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) 204 VSUB.U8 Q10,Q12,Q13 @II sign_left = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 205 206 VCGT.U8 Q13,Q15,Q14 @II vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 207 VTBL.8 D15,{D10},D15 @vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) 208 VCLT.U8 Q12,Q15,Q14 @II vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 209 210 VAND Q7,Q7,Q4 @edge_idx = vandq_s8(edge_idx, au1_mask) 211 VUZP.8 D14,D15 212 213 VSUB.U8 Q11,Q12,Q13 @II sign_right = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 214 VTBL.8 D16,{D11},D14 @offset = vtbl1_s8(offset_tbl_u, vget_low_s8(edge_idx)) 215 VADD.U8 Q12,Q1,Q10 @II edge_idx = vaddq_s8(const_2, sign_left) 216 217 VMOVL.U8 Q9,D12 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) 218 VTBL.8 D17,{D0},D15 219 VADD.U8 Q12,Q12,Q11 @II edge_idx = vaddq_s8(edge_idx, sign_right) 220 221 VZIP.S8 D16,D17 222 VTBL.8 D24,{D10},D24 @II vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) 223 VMOVL.U8 Q6,D13 @pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) 224 225 VADDW.S8 Q9,Q9,D16 @pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) 226 VTBL.8 D25,{D10},D25 @II vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) 227 VMAX.S16 Q9,Q9,Q2 @pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) 228 229 VAND Q12,Q12,Q4 @II edge_idx = vandq_s8(edge_idx, au1_mask) 230 VMIN.U16 Q9,Q9,Q3 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) 231 VUZP.8 D24,D25 @II 232 233 VADDW.S8 Q6,Q6,D17 @pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) 234 VTBL.8 D26,{D11},D24 @II offset = vtbl1_s8(offset_tbl_u, vget_low_s8(edge_idx)) 235 VMAX.S16 Q6,Q6,Q2 @pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) 236 237 VMIN.U16 Q6,Q6,Q3 @pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) 238 VTBL.8 D27,{D0},D25 @II 239 VMOVN.I16 D14,Q9 @vmovn_s16(pi2_tmp_cur_row.val[0]) 240 241 VMOVN.I16 D15,Q6 @vmovn_s16(pi2_tmp_cur_row.val[1]) 242 VZIP.S8 D26,D27 @II 243 244 SUB r5,r9,r8 @II wd - col 245 VMOVL.U8 Q14,D30 @II pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) 246 SUB r14,r10,r4 @II ht - row 247 248 MUL r14,r14,r1 @II (ht - row) * src_strd 249 VADDW.S8 Q14,Q14,D26 @II pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) 250 ADD r5,r14,r5 @II (ht - row) * src_strd + (wd - col) 251 252 LDRH r14,[r6,r5] @II pu1_src_org[(ht - row) * src_strd + 14 + (wd - col)] 253 VMAX.S16 Q14,Q14,Q2 @II pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) 254 255 STRH r14,[r2],#2 @II pu1_src_left[(ht - row)] = au1_src_left_tmp[(ht - row)] 256 VMIN.U16 Q14,Q14,Q3 @II pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) 257 258 VMOVL.U8 Q15,D31 @II pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) 259 260 VADDW.S8 Q15,Q15,D27 @II pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) 261 VST1.8 {D14,D15},[r12],r1 @vst1q_u8(pu1_src_cpy, pu1_cur_row) 262 263 VMAX.S16 Q15,Q15,Q2 @II pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) 264 SUBS r4,r4,#1 @Decrement row by 1 265 VMIN.U16 Q15,Q15,Q3 @II pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) 266 267 VMOVN.I16 D28,Q14 @II vmovn_s16(pi2_tmp_cur_row.val[0]) 268 VMOVN.I16 D29,Q15 @II vmovn_s16(pi2_tmp_cur_row.val[1]) 269 270 VST1.8 {D28,D29},[r12],r1 @II vst1q_u8(pu1_src_cpy, pu1_cur_row) 271 272 BNE PU1_SRC_LOOP @If not equal jump to the inner loop 273 274 ADD r0,r0,#16 @pu1_src += 16 275 276 SUBS r8,r8,#16 @Decrement column by 16 277 CMP r8,#8 @Check whether residue remains 278 MOV r2,r3 @Reload pu1_src_left 279 BEQ WIDTH_RESIDUE @If residue remains jump to residue loop 280 BGT WIDTH_LOOP_16 @If not equal jump to width_loop 281 BLT END_LOOPS @Jump to end function 282 283 WIDTH_RESIDUE: 284 SUB r6,r6,#14 285 AND r8,r9,#0xF @wd_rem = wd & 0xF 286 CMP r8,#0 @Residue check 287 BEQ END_LOOPS @No Residue jump to end function 288 289 CMP r8,r9 @if(wd_rem == wd) 290 BNE AU1_MASK_FF_RESIDUE @jump to else part 291 LDRB r12,[r7] @pu1_avail[0] 292 VMOV.8 D8[0],r12 @vsetq_lane_s8(pu1_avail[0], au1_mask, 0) 293 VMOV.8 D8[1],r12 @vsetq_lane_s8(pu1_avail[0], au1_mask, 0) 294 B SKIP_AU1_MASK_FF_RESIDUE @Skip the else part 295 296 AU1_MASK_FF_RESIDUE: 297 MOV r12,#-1 @move -1 to r12 298 VMOV.16 D8[0],r12 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) 299 300 SKIP_AU1_MASK_FF_RESIDUE: 301 LDRB r12,[r7,#1] @pu1_avail[1] 302 VMOV.8 D8[6],r12 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) 303 VMOV.8 D8[7],r12 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) 304 305 MOV r12,r0 @pu1_src_cpy = pu1_src 306 MOV r4,r10 @move ht to r4 for loop count 307 308 PU1_SRC_LOOP_RESIDUE: 309 LDRH r11,[r2] @load pu1_src_left 310 VLD1.8 D12,[r12]! @pu1_cur_row = vld1q_u8(pu1_src_cpy) 311 VLD1.8 D13,[r12],r1 @pu1_cur_row = vld1q_u8(pu1_src_cpy) 312 SUB r12,#8 313 SUB r5,r9,#2 @wd - 2 314 315 SUB r14,r10,r4 @(ht - row) 316 VMOV.16 D15[3],r11 @vsetq_lane_u8(pu1_src_left[ht - row], pu1_cur_row_tmp, 15) 317 LSL r14,r14,#1 @(ht - row) * 2 318 319 VLD1.8 D30,[r12]! @II pu1_cur_row = vld1q_u8(pu1_src_cpy) 320 VLD1.8 D31,[r12] @II pu1_cur_row = vld1q_u8(pu1_src_cpy) 321 SUB r12,#8 322 VEXT.8 Q7,Q7,Q6,#14 @pu1_cur_row_tmp = vextq_u8(pu1_cur_row_tmp, pu1_cur_row, 15) 323 SUB r12,r12,r1 324 325 LDRH r11,[r2,#2] @II load pu1_src_left 326 VCGT.U8 Q8,Q6,Q7 @vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 327 MUL r14,r14,r1 @(ht - row) * 2 * src_strd 328 329 VCLT.U8 Q9,Q6,Q7 @vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 330 VMOV.16 D29[3],r11 @II vsetq_lane_u8(pu1_src_left[ht - row], pu1_cur_row_tmp, 15) 331 332 LDRB r11,[r12,#16] @pu1_src_cpy[16] 333 VSUB.U8 Q10,Q9,Q8 @sign_left = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 334 ADD r5,r14,r5 @(ht - row) * 2 * src_strd + (wd - 2) 335 336 VMOV.8 D14[0],r11 @pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[16], pu1_cur_row_tmp, 0) 337 VEXT.8 Q14,Q14,Q15,#14 @II pu1_cur_row_tmp = vextq_u8(pu1_cur_row_tmp, pu1_cur_row, 15) 338 339 LDRB r11,[r12,#17] @pu1_src_cpy[17] 340 VCGT.U8 Q13,Q15,Q14 @II vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 341 LDRH r14,[r6, r5] @pu1_src_org[(ht - row) * 2* src_strd + (wd - 2)] 342 343 VMOV.8 D14[1],r11 @pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[17], pu1_cur_row_tmp, 1) 344 VCLT.U8 Q12,Q15,Q14 @II vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 345 ADD r12,r12,r1 346 347 STRH r14,[r2],#2 @pu1_src_left[(ht - row) * 2] = au1_src_left_tmp[(ht - row) * 2] 348 VEXT.8 Q7,Q6,Q7,#2 @pu1_cur_row_tmp = vextq_u8(pu1_cur_row, pu1_cur_row_tmp, 1) 349 LDRB r11,[r12,#16] @II pu1_src_cpy[16] 350 351 VCGT.U8 Q8,Q6,Q7 @vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 352 VMOV.8 D28[0],r11 @II pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[16], pu1_cur_row_tmp, 0) 353 354 LDRB r11,[r12,#17] @II pu1_src_cpy[17] 355 VCLT.U8 Q9,Q6,Q7 @vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 356 SUB r4,r4,#1 @II Decrement row by 1 357 358 VSUB.U8 Q11,Q9,Q8 @sign_right = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 359 VMOV.8 D28[1],r11 @II pu1_cur_row_tmp = vsetq_lane_u8(pu1_src_cpy[17], pu1_cur_row_tmp, 1) 360 SUB r12,r12,r1 361 362 VADD.U8 Q7,Q1,Q10 @edge_idx = vaddq_s8(const_2, sign_left) 363 VEXT.8 Q14,Q15,Q14,#2 @II pu1_cur_row_tmp = vextq_u8(pu1_cur_row, pu1_cur_row_tmp, 1) 364 365 VADD.U8 Q7,Q7,Q11 @edge_idx = vaddq_s8(edge_idx, sign_right) 366 367 VSUB.U8 Q10,Q12,Q13 @II sign_left = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 368 VTBL.8 D14,{D10},D14 @vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) 369 VCGT.U8 Q13,Q15,Q14 @II vcgtq_u8(pu1_cur_row, pu1_cur_row_tmp) 370 371 VCLT.U8 Q12,Q15,Q14 @II vcltq_u8(pu1_cur_row, pu1_cur_row_tmp) 372 VTBL.8 D15,{D10},D15 @vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) 373 VSUB.U8 Q11,Q12,Q13 @II sign_right = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) 374 375 VAND Q7,Q7,Q4 @edge_idx = vandq_s8(edge_idx, au1_mask) 376 VUZP.8 D14,D15 377 378 VADD.U8 Q14,Q1,Q10 @II edge_idx = vaddq_s8(const_2, sign_left) 379 VTBL.8 D16,{D11},D14 @offset = vtbl1_s8(offset_tbl_u, vget_low_s8(edge_idx)) 380 VADD.U8 Q14,Q14,Q11 @II edge_idx = vaddq_s8(edge_idx, sign_right) 381 382 VMOVL.U8 Q9,D12 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) 383 VTBL.8 D17,{D0},D15 384 VMOVL.U8 Q12,D30 @II pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) 385 386 VZIP.S8 D16,D17 387 VTBL.8 D28,{D10},D28 @II vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) 388 VADDW.S8 Q9,Q9,D16 @pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) 389 390 VMAX.S16 Q9,Q9,Q2 @pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) 391 VTBL.8 D29,{D10},D29 @II vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) 392 VMIN.U16 Q9,Q9,Q3 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) 393 394 VMOVN.I16 D18,Q9 @vmovn_s16(pi2_tmp_cur_row.val[0]) 395 VAND Q14,Q14,Q4 @II edge_idx = vandq_s8(edge_idx, au1_mask) 396 397 SUB r5,r9,#2 @II wd - 2 398 VUZP.8 D28,D29 @II 399 SUB r14,r10,r4 @II (ht - row) 400 401 LSL r14,r14,#1 @II (ht - row) * 2 402 VTBL.8 D26,{D11},D28 @II offset = vtbl1_s8(offset_tbl_u, vget_low_s8(edge_idx)) 403 MUL r14,r14,r1 @II (ht - row) * 2 * src_strd 404 405 ADD r5,r14,r5 @II (ht - row) * 2 * src_strd + (wd - 2) 406 VTBL.8 D27,{D0},D29 @II 407 LDRH r14,[r6, r5] @II pu1_src_org[(ht - row) * 2* src_strd + (wd - 2)] 408 409 VZIP.S8 D26,D27 @II 410 VST1.8 {D18},[r12],r1 @vst1q_u8(pu1_src_cpy, pu1_cur_row) 411 412 STRH r14,[r2],#2 @II pu1_src_left[(ht - row) * 2] = au1_src_left_tmp[(ht - row) * 2] 413 VADDW.S8 Q12,Q12,D26 @II pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) 414 SUBS r4,r4,#1 @Decrement row by 1 415 416 VMAX.S16 Q12,Q12,Q2 @II pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) 417 VMIN.U16 Q12,Q12,Q3 @II pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) 418 419 VMOVN.I16 D28,Q12 @II vmovn_s16(pi2_tmp_cur_row.val[0]) 420 421 VST1.8 {D28},[r12],r1 @II vst1q_u8(pu1_src_cpy, pu1_cur_row) 422 423 BNE PU1_SRC_LOOP_RESIDUE @If not equal jump to the pu1_src loop 424 425 END_LOOPS: 426 LDMFD sp!,{r4-r12,r15} @Reload the registers from SP 427 428 429 430 431 432
