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Diffstat (limited to 'common/arm/ihevc_sao_edge_offset_class3_chroma.s')
-rw-r--r-- | common/arm/ihevc_sao_edge_offset_class3_chroma.s | 1052 |
1 files changed, 1052 insertions, 0 deletions
diff --git a/common/arm/ihevc_sao_edge_offset_class3_chroma.s b/common/arm/ihevc_sao_edge_offset_class3_chroma.s new file mode 100644 index 0000000..2ecabe9 --- /dev/null +++ b/common/arm/ihevc_sao_edge_offset_class3_chroma.s @@ -0,0 +1,1052 @@ +@/***************************************************************************** +@* +@* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore +@* +@* Licensed under the Apache License, Version 2.0 (the "License"); +@* you may not use this file except in compliance with the License. +@* You may obtain a copy of the License at: +@* +@* http://www.apache.org/licenses/LICENSE-2.0 +@* +@* Unless required by applicable law or agreed to in writing, software +@* distributed under the License is distributed on an "AS IS" BASIS, +@* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@* See the License for the specific language governing permissions and +@* limitations under the License. +@* +@*****************************************************************************/ +@/** +@******************************************************************************* +@* ,:file +@* ihevc_sao_edge_offset_class3_chroma.s +@* +@* ,:brief +@* Contains function definitions for inter prediction interpolation. +@* Functions are coded using NEON intrinsics and can be compiled using@ ARM +@* RVCT +@* +@* ,:author +@* Parthiban V +@* +@* ,:par List of Functions: +@* +@* +@* ,:remarks +@* None +@* +@******************************************************************************* +@*/ +@void ihevc_sao_edge_offset_class3_chroma(UWORD8 *pu1_src, +@ WORD32 src_strd, +@ UWORD8 *pu1_src_left, +@ UWORD8 *pu1_src_top, +@ UWORD8 *pu1_src_top_left, +@ UWORD8 *pu1_src_top_right, +@ UWORD8 *pu1_src_bot_left, +@ UWORD8 *pu1_avail, +@ WORD8 *pi1_sao_offset_u, +@ WORD8 *pi1_sao_offset_v, +@ WORD32 wd, +@ WORD32 ht) +@**************Variables Vs Registers***************************************** +@r0 => *pu1_src +@r1 => src_strd +@r2 => *pu1_src_left +@r3 => *pu1_src_top +@r4 => *pu1_src_top_left +@r5 => *pu1_avail +@r6 => *pi1_sao_offset_u +@r9 => *pi1_sao_offset_v +@r7 => wd +@r8=> ht + +.text +.p2align 2 + +.extern gi1_table_edge_idx +.globl ihevc_sao_edge_offset_class3_chroma_a9q + +gi1_table_edge_idx_addr_1: +.long gi1_table_edge_idx - ulbl1 - 8 + +gi1_table_edge_idx_addr_2: +.long gi1_table_edge_idx - ulbl2 - 8 + +gi1_table_edge_idx_addr_3: +.long gi1_table_edge_idx - ulbl3 - 8 + +gi1_table_edge_idx_addr_4: +.long gi1_table_edge_idx - ulbl4 - 8 + +gi1_table_edge_idx_addr_5: +.long gi1_table_edge_idx - ulbl5 - 8 + +ihevc_sao_edge_offset_class3_chroma_a9q: + + + STMFD sp!,{r4-r12,r14} @stack stores the values of the arguments + + LDR r7,[sp,#0x40] @Loads wd + LDR r8,[sp,#0x44] @Loads ht + SUB r9,r7,#2 @wd - 2 + + LDR r4,[sp,#0x28] @Loads pu1_src_top_left + LDRH r10,[r3,r9] @pu1_src_top[wd - 2] + + MOV r9,r7 @Move width to r9 for loop count + + LDR r5,[sp,#0x34] @Loads pu1_avail + LDR r6,[sp,#0x38] @Loads pi1_sao_offset_u + + STR r3,[sp,#0x38] @Store pu1_src_top in sp + SUB sp,sp,#0xD4 @Decrement the stack pointer to store some temp arr values + + STRH r10,[sp] @u1_src_top_left_tmp = pu1_src_top[wd - 2] + SUB r10,r8,#1 @ht-1 + MLA r11,r10,r1,r0 @pu1_src[(ht - 1) * src_strd + col] + ADD r12,sp,#10 @temp array + +AU1_SRC_TOP_LOOP: + VLD1.8 D0,[r11]! @pu1_src[(ht - 1) * src_strd + col] + SUBS r9,r9,#8 @Decrement the loop count by 8 + VST1.8 D0,[r12]! @au1_src_top_tmp[col] = pu1_src[(ht - 1) * src_strd + col] + BNE AU1_SRC_TOP_LOOP + +PU1_AVAIL_5_LOOP_U: + LDRB r9,[r5,#5] @pu1_avail[5] + CMP r9,#0 + SUB r14,r7,#2 @[wd - 2] + LDRB r9,[r0,r14] @u1_pos_0_0_tmp_u = pu1_src[wd - 2] + SUB r11,r7,#1 @[wd - 1] + LDRB r10,[r0,r11] @u1_pos_0_0_tmp_v = pu1_src[wd - 1] + BEQ PU1_AVAIL_6_LOOP_U + + LDR r11,[sp,#0x100] @Load pu1_src_top_right from sp + LDRB r11,[r11] @pu1_src_top_right[0] + SUB r12,r9,r11 @pu1_src[wd - 2] - pu1_src_top_right[0] + CMP r12,#0 + MVNLT r12,#0 + MOVGT r12,#1 @SIGN(pu1_src[wd - 2] - pu1_src_top_right[0]) + ADD r11,r0,r1 @pu1_src + src_strd + SUB r14,r14,#2 @[wd - 2 - 2] + LDRB r14,[r11,r14] @pu1_src[wd - 2 - 2 + src_strd] + SUB r11,r9,r14 @pu1_src[wd - 2] - pu1_src[wd - 2 - 2 + src_strd] + CMP r11,#0 + MVNLT r11,#0 + MOVGT r11,#1 @SIGN(pu1_src[wd - 2] - pu1_src[wd - 2 - 2 + src_strd]) + ADD r11,r12,r11 @SIGN(pu1_src[wd - 2] - pu1_src_top_right[0]) + SIGN(pu1_src[wd - 2] - pu1_src[wd - 2 - 2 + src_strd]) + ADD r11,r11,#2 @edge_idx + LDR r14, gi1_table_edge_idx_addr_1 @table pointer +ulbl1: + add r14,r14,pc + + LDRSB r12,[r14,r11] @edge_idx = gi1_table_edge_idx[edge_idx] + CMP r12,#0 @0 != edge_idx + BEQ PU1_AVAIL_5_LOOP_V + LDRSB r11,[r6,r12] @pi1_sao_offset_u[edge_idx] + ADD r9,r9,r11 @pu1_src[wd - 2] + pi1_sao_offset_u[edge_idx] + USAT r9,#8,r9 @u1_pos_0_0_tmp_u = CLIP3(pu1_src[wd - 2] + pi1_sao_offset[edge_idx], 0, (1 << bit_depth) - 1) + +PU1_AVAIL_5_LOOP_V: + + LDR r11,[sp,#0x100] @Load pu1_src_top_right from sp + LDRB r11,[r11,#1] @pu1_src_top_right[1] + SUB r12,r10,r11 @pu1_src[wd - 1] - pu1_src_top_right[1] + CMP r12,#0 + MVNLT r12,#0 + MOVGT r12,#1 @SIGN(pu1_src[wd - 1] - pu1_src_top_right[1]) + ADD r11,r0,r1 @pu1_src + src_strd + SUB r14,r7,#3 @[wd - 1 - 2] + LDRB r14,[r11,r14] @pu1_src[wd - 1 - 2 + src_strd] + SUB r11,r10,r14 @pu1_src[wd - 1] - pu1_src[wd - 1 - 2 + src_strd] + CMP r11,#0 + MVNLT r11,#0 + MOVGT r11,#1 @SIGN(pu1_src[wd - 1] - pu1_src[wd - 1 - 2 + src_strd]) + ADD r11,r12,r11 @SIGN(pu1_src[wd - 1] - pu1_src_top_right[1]) + SIGN(pu1_src[wd - 1] - pu1_src[wd - 1 - 2 + src_strd]) + ADD r11,r11,#2 @edge_idx + LDR r14, gi1_table_edge_idx_addr_2 @table pointer +ulbl2: + add r14,r14,pc + + LDRSB r12,[r14,r11] @edge_idx = gi1_table_edge_idx[edge_idx] + CMP r12,#0 @0 != edge_idx + BEQ PU1_AVAIL_6_LOOP_U + LDR r11,[sp,#0x110] @Loads pi1_sao_offset_v + LDRSB r11,[r11,r12] @pi1_sao_offset_v[edge_idx] + ADD r10,r10,r11 @pu1_src[wd - 1] + pi1_sao_offset_v[edge_idx] + USAT r10,#8,r10 @u1_pos_0_0_tmp_v = CLIP3(pu1_src[wd - 1] + pi1_sao_offset_v[edge_idx], 0, (1 << bit_depth) - 1) + +PU1_AVAIL_6_LOOP_U: + STRB r9,[sp,#6] + STRB r10,[sp,#7] + STR r0,[sp,#0x100] @Store pu1_src in sp + + LDRB r10,[r5,#6] @pu1_avail[6] + CMP r10,#0 + SUB r11,r8,#1 @ht - 1 + MLA r12,r11,r1,r0 @pu1_src[(ht - 1) * src_strd] + LDRB r10,[r12] @u1_pos_wd_ht_tmp_u = pu1_src[(ht - 1) * src_strd] + LDRB r9,[r12,#1] @u1_pos_wd_ht_tmp_v = pu1_src[(ht - 1) * src_strd + 1] + BEQ PU1_AVAIL_3_LOOP + + SUB r11,r12,r1 @pu1_src[(ht - 1) * src_strd - src_strd] + ADD r11,r11,#2 @pu1_src[(ht - 1) * src_strd + 2 - src_strd] + LDRB r11,[r11] @Load pu1_src[(ht - 1) * src_strd + 2 - src_strd] + SUB r11,r10,r11 @pu1_src[(ht - 1) * src_strd] - pu1_src[(ht - 1) * src_strd + 2 - src_strd] + CMP r11,#0 + MVNLT r11,#0 + MOVGT r11,#1 @SIGN(pu1_src[(ht - 1) * src_strd] - pu1_src[(ht - 1) * src_strd + 2 - src_strd]) + + LDR r14,[sp,#0x104] @Load pu1_src_bot_left from sp + LDRB r14,[r14] @Load pu1_src_bot_left[0] + SUB r14,r10,r14 @pu1_src[(ht - 1) * src_strd] - pu1_src_bot_left[0] + CMP r14,#0 + MVNLT r14,#0 + MOVGT r14,#1 @SIGN(pu1_src[(ht - 1) * src_strd] - pu1_src_bot_left[0]) + + ADD r11,r11,r14 @Add 2 sign value + ADD r11,r11,#2 @edge_idx + LDR r14, gi1_table_edge_idx_addr_3 @table pointer +ulbl3: + add r14,r14,pc + + LDRSB r14,[r14,r11] @edge_idx = gi1_table_edge_idx[edge_idx] + CMP r14,#0 + BEQ PU1_AVAIL_6_LOOP_V + LDRSB r11,[r6,r14] @pi1_sao_offset_u[edge_idx] + ADD r10,r10,r11 @pu1_src[(ht - 1) * src_strd] + pi1_sao_offset[edge_idx] + USAT r10,#8,r10 @u1_pos_wd_ht_tmp = CLIP3(pu1_src[(ht - 1) * src_strd] + pi1_sao_offset[edge_idx], 0, (1 << bit_depth) - 1) + +PU1_AVAIL_6_LOOP_V: + ADD r12,r12,#1 @pu1_src[(ht - 1) * src_strd + 1] + SUB r11,r12,r1 @pu1_src[(ht - 1) * src_strd + 1) - src_strd] + ADD r11,r11,#2 @pu1_src[(ht - 1) * src_strd + 2 - src_strd] + LDRB r11,[r11] @Load pu1_src[(ht - 1) * src_strd + 2 - src_strd] + SUB r11,r9,r11 @pu1_src[(ht - 1) * src_strd + 1] - pu1_src[(ht - 1) * src_strd + 1 + 2 - src_strd] + CMP r11,#0 + MVNLT r11,#0 + MOVGT r11,#1 @SIGN(pu1_src[(ht - 1) * src_strd + 1] - pu1_src[(ht - 1) * src_strd + 1 + 2 - src_strd]) + + LDR r14,[sp,#0x104] @Load pu1_src_bot_left from sp + LDRB r14,[r14,#1] @Load pu1_src_bot_left[1] + SUB r14,r9,r14 @pu1_src[(ht - 1) * src_strd + 1] - pu1_src_bot_left[1] + CMP r14,#0 + MVNLT r14,#0 + MOVGT r14,#1 @SIGN(pu1_src[(ht - 1) * src_strd + 1] - pu1_src_bot_left[1]) + + ADD r11,r11,r14 @Add 2 sign value + ADD r11,r11,#2 @edge_idx + LDR r14, gi1_table_edge_idx_addr_4 @table pointer +ulbl4: + add r14,r14,pc + + LDRSB r12,[r14,r11] @edge_idx = gi1_table_edge_idx[edge_idx] + CMP r12,#0 + BEQ PU1_AVAIL_3_LOOP + LDR r14,[sp,#0x110] @Loads pi1_sao_offset_v + LDRSB r11,[r14,r12] @pi1_sao_offset_v[edge_idx] + ADD r9,r9,r11 @pu1_src[(ht - 1) * src_strd] + pi1_sao_offset[edge_idx] + USAT r9,#8,r9 @u1_pos_wd_ht_tmp_v = CLIP3(pu1_src[(ht - 1) * src_strd] + pi1_sao_offset[edge_idx], 0, (1 << bit_depth) - 1) + +PU1_AVAIL_3_LOOP: + STRB r10,[sp,#8] + STRB r9,[sp,#9] + STR r2,[sp,#0x104] @Store pu1_src_left in sp + + MOV r12,r8 @Move ht + MOV r14,r2 @Move pu1_src_left to pu1_src_left_cpy + LDRB r11,[r5,#3] @pu1_avail[3] + CMP r11,#0 + BNE PU1_AVAIL_2_LOOP + SUB r12,r12,#1 @ht_tmp-- + +PU1_AVAIL_2_LOOP: + LDRB r5,[r5,#2] @pu1_avail[2] + CMP r5,#0 + BNE PU1_AVAIL_2_LOOP_END + + ADD r0,r0,r1 @pu1_src += src_strd + SUB r12,r12,#1 @ht_tmp-- + ADD r14,r14,#2 @pu1_src_left_cpy += 2 + +PU1_AVAIL_2_LOOP_END: + STR r0,[sp,#2] @Store pu1_src in sp + VMOV.I8 Q0,#2 @const_2 = vdupq_n_s8(2) + VMOV.I16 Q1,#0 @const_min_clip = vdupq_n_s16(0) + VMOV.I16 Q2,#255 @const_max_clip = vdupq_n_u16((1 << bit_depth) - 1) + VLD1.8 D6,[r6] @offset_tbl_u = vld1_s8(pi1_sao_offset_u) + LDR r6,[sp,#0x110] @Loads pi1_sao_offset_v + VLD1.8 D7,[r6] @offset_tbl_v = vld1_s8(pi1_sao_offset_v) + LDR r2, gi1_table_edge_idx_addr_5 @table pointer +ulbl5: + add r2,r2,pc + @VLD1.8 D6,[r6] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + VMOV.S8 Q4,#0xFF @au1_mask = vdupq_n_s8(-1) + MOV r6,r7 @move wd to r6 loop_count + + CMP r7,#16 @Compare wd with 16 + BLT WIDTH_RESIDUE @If not jump to WIDTH_RESIDUE where loop is unrolled for 8 case + CMP r8,#4 @Compare ht with 4 + BLE WD_16_HT_4_LOOP @If jump to WD_16_HT_4_LOOP + +WIDTH_LOOP_16: + LDR r7,[sp,#0x114] @Loads wd + CMP r6,r7 @col == wd + LDR r5,[sp,#0x108] @Loads pu1_avail + + LDREQB r8,[r5] @pu1_avail[0] + MOVNE r8,#-1 + + VMOV.8 D8[0],r8 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) + LDRB r11,[r5,#2] @pu1_avail[2] + + CMP r6,#16 @if(col == 16) + VMOV.8 D8[1],r8 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) + + BNE SKIP_AU1_MASK_VAL + LDRB r8,[r5,#1] @pu1_avail[1] + VMOV.8 D9[6],r8 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) + VMOV.8 D9[7],r8 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) + +SKIP_AU1_MASK_VAL: + CMP r11,#0 + VLD1.8 D12,[r0]! @pu1_cur_row = vld1q_u8(pu1_src) + VLD1.8 D13,[r0] @pu1_cur_row = vld1q_u8(pu1_src) + SUB r0,#8 + ADD r5,sp,#0x4B @*au1_src_left_tmp + + SUBEQ r8,r0,r1 @pu1_src - src_strd + VMOV.I8 Q9,#0 + MOVNE r8,r3 + + ADD r8,r8,#2 @pu1_src - src_strd + 2 + VLD1.8 D10,[r8]! @pu1_top_row = vld1q_u8(pu1_src - src_strd + 2) + VLD1.8 D11,[r8] @pu1_top_row = vld1q_u8(pu1_src - src_strd + 2) + SUB r8,#8 + ADD r3,r3,#16 + + LDR r4,[sp,#0x118] @Loads ht + VCGT.U8 Q7,Q6,Q5 @vcgtq_u8(pu1_cur_row, pu1_top_row) + LDR r7,[sp,#0x114] @Loads wd + + SUB r7,r7,r6 @(wd - col) + VCLT.U8 Q8,Q6,Q5 @vcltq_u8(pu1_cur_row, pu1_top_row) + ADD r7,r7,#14 @15 + (wd - col) + + LDR r8,[sp,#0x100] @Loads *pu1_src + VSUB.U8 Q7,Q8,Q7 @sign_up = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + ADD r7,r8,r7 @pu1_src[0 * src_strd + 15 + (wd - col)] + +AU1_SRC_LEFT_LOOP: + LDRH r8,[r7] @load the value and increment by src_strd + SUBS r4,r4,#1 @decrement the loop count + + STRH r8,[r5],#2 @store it in the stack pointer + ADD r7,r7,r1 + BNE AU1_SRC_LEFT_LOOP + + + MOV r7,r12 @row count, move ht_tmp to r7 + VMOV.I8 Q9,#0 @I + ADD r11,r0,r1 @I *pu1_src + src_strd + + SUB r5,r12,r7 @I ht_tmp - row + VLD1.8 D16,[r11]! @I pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + VLD1.8 D17,[r11] @I pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + SUB r11,#8 + ADD r8,r14,r5,LSL #1 @I pu1_src_left_cpy[(ht_tmp - row) * 2] + + LDRH r5,[r8,#2] @I + VMOV.16 D19[3],r5 @I vsetq_lane_u8 + LDR r11,[sp,#0x108] @I Loads pu1_avail + + LDRB r11,[r11,#2] @I pu1_avail[2] + VEXT.8 Q9,Q9,Q8,#14 @I pu1_next_row_tmp = vextq_u8(pu1_next_row_tmp, pu1_next_row, 14) + CMP r11,#0 @I + BNE SIGN_UP_CHANGE_DONE @I + + LDRB r8,[r0,#14] @I pu1_src_cpy[14] + SUB r5,r0,r1 @I + + LDRB r11,[r5,#16] @I load the value pu1_src_cpy[16 - src_strd] + + LDRB r9,[r0,#15] @I pu1_src_cpy[15] + SUB r8,r8,r11 @I pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd] + + LDRB r10,[r5,#17] @I load the value pu1_src_cpy[17 - src_strd] + CMP r8,#0 @I + + MVNLT r8,#0 @I + SUB r9,r9,r10 @I pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + MOVGT r8,#1 @I SIGN(pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd]) + CMP r9,#0 @I + + MVNLT r9,#0 @I + VMOV.8 D15[6],r8 @I sign_up = sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[14] -pu1_src_cpy[16 - src_strd]), sign_up, 0) + MOVGT r9,#1 @I SIGN(pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + VMOV.8 D15[7],r9 @I sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[15] -pu1_src_cpy[17 - src_strd]), sign_up, 1) + +SIGN_UP_CHANGE_DONE: + VLD1.8 D28,[r2] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + VCGT.U8 Q10,Q6,Q9 @I vcgtq_u8(pu1_cur_row, pu1_next_row_tmp) + + VCLT.U8 Q11,Q6,Q9 @I vcltq_u8(pu1_cur_row, pu1_next_row_tmp) + VSUB.U8 Q11,Q11,Q10 @I sign_down = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + + VADD.I8 Q9,Q0,Q7 @I edge_idx = vaddq_s8(const_2, sign_up) + VADD.I8 Q9,Q9,Q11 @I edge_idx = vaddq_s8(edge_idx, sign_down) + VTBL.8 D18,{D28},D18 @I vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) + VNEG.S8 Q7,Q11 @I sign_up = vnegq_s8(sign_down) + + VTBL.8 D19,{D28},D19 @I vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) + VEXT.8 Q7,Q7,Q7,#2 @I sign_up = vextq_s8(sign_up, sign_up, 2) + + VMOVL.U8 Q10,D12 @I pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) + VAND Q9,Q9,Q4 @I edge_idx = vandq_s8(edge_idx, au1_mask) + + VUZP.8 D18,D19 @I + VTBL.8 D22,{D6},D18 @I + VTBL.8 D23,{D7},D19 @I + VZIP.8 D22,D23 @I + + VMOVL.U8 Q9,D13 @I pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) + VADDW.S8 Q10,Q10,D22 @I pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) + + VMAX.S16 Q10,Q10,Q1 @I pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) + VMIN.U16 Q10,Q10,Q2 @I pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) + + VMOV Q6,Q8 @I pu1_cur_row = pu1_next_row + VADDW.S8 Q9,Q9,D23 @I pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) + + SUB r7,r7,#1 @I Decrement the ht_tmp loop count by 1 + VMAX.S16 Q9,Q9,Q1 @I pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) + + VMIN.U16 Q9,Q9,Q2 @I pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) + + +PU1_SRC_LOOP: + ADD r11,r0,r1,LSL #1 @II *pu1_src + src_strd + VMOVN.I16 D20,Q10 @I vmovn_s16(pi2_tmp_cur_row.val[0]) + SUB r5,r12,r7 @II ht_tmp - row + + ADD r4,r0,r1 @III *pu1_src + src_strd + VMOVN.I16 D21,Q9 @I vmovn_s16(pi2_tmp_cur_row.val[1]) + ADD r8,r14,r5,LSL #1 @II pu1_src_left_cpy[(ht_tmp - row) * 2] + + LDRH r9,[r8,#2] + VLD1.8 D16,[r11]! @II pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + VLD1.8 D17,[r11] @II pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + SUB r11,#8 + LDRB r10,[r4,#14] @II pu1_src_cpy[14] + + LDRB r8,[r4,#15] @II pu1_src_cpy[15] + VMOV.16 D29[3],r9 @II vsetq_lane_u8 + ADD r4,r11,r1 @III *pu1_src + src_strd + + LDRB r5,[r0,#17] @II load the value pu1_src_cpy[17 - src_strd] + VLD1.8 D30,[r4]! @III pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + VLD1.8 D31,[r4] @III pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + SUB r4,#8 + LDRB r11,[r0,#16] @II load the value pu1_src_cpy[16 - src_strd] + + SUB r7,r7,#1 @II Decrement the ht_tmp loop count by 1 + VST1.8 {Q10},[r0],r1 @I vst1q_u8(pu1_src_cpy, pu1_cur_row) + SUB r10,r10,r11 @II pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd] + + CMP r10,#0 @II + VEXT.8 Q14,Q14,Q8,#14 @II pu1_next_row_tmp = vextq_u8(pu1_next_row_tmp, pu1_next_row, 14) + SUB r8,r8,r5 @II pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + MVNLT r10,#0 @II + VLD1.8 D21,[r2] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + MOVGT r10,#1 @II SIGN(pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd]) + + CMP r8,#0 @II + VMOV.8 D15[6],r10 @II sign_up = sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[14] -pu1_src_cpy[16 - src_strd]), sign_up, 0) + MVNLT r8,#0 @II + + MOVGT r8,#1 @II SIGN(pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + SUB r10,r12,r7 @III ht_tmp - row + VMOV.8 D15[7],r8 @II sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[15] -pu1_src_cpy[17 - src_strd]), sign_up, 1) + ADD r11,r14,r10,LSL #1 @III pu1_src_left_cpy[(ht_tmp - row) * 2] + + CMP r7,#1 @III + VCGT.U8 Q11,Q6,Q14 @II vcgtq_u8(pu1_cur_row, pu1_next_row_tmp) + BNE NEXT_ROW_POINTER_ASSIGNED_2 @III + + LDR r5,[sp,#0x108] @III Loads pu1_avail + LDRB r5,[r5,#3] @III pu1_avail[3] + CMP r5,#0 @III + SUBNE r11,r4,#4 @III pu1_src[src_strd - 2] + +NEXT_ROW_POINTER_ASSIGNED_2: + LDRH r5,[r11,#2] @III + VCLT.U8 Q12,Q6,Q14 @II vcltq_u8(pu1_cur_row, pu1_next_row_tmp) + ADD r11,r0,r1 @III + + LDRB r9,[r11,#14] @III pu1_src_cpy[14] + VMOV.16 D19[3],r5 @III vsetq_lane_u8 + LDRB r8,[r11,#15] @III pu1_src_cpy[15] + + LDRB r11,[r0,#16] @III load the value pu1_src_cpy[16 - src_strd] + VSUB.U8 Q12,Q12,Q11 @II sign_down = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + LDRB r10,[r0,#17] @III load the value pu1_src_cpy[17 - src_strd] + + SUB r9,r9,r11 @III pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd] + VEXT.8 Q9,Q9,Q15,#14 @III pu1_next_row_tmp = vextq_u8(pu1_next_row_tmp, pu1_next_row, 14) + SUB r10,r8,r10 @III pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + CMP r9,#0 @III + VADD.I8 Q13,Q0,Q7 @II edge_idx = vaddq_s8(const_2, sign_up) + MVNLT r9,#0 @III + + MOVGT r9,#1 @III SIGN(pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd]) + VADD.I8 Q13,Q13,Q12 @II edge_idx = vaddq_s8(edge_idx, sign_down) + CMP r10,#0 @III + + VNEG.S8 Q7,Q12 @II sign_up = vnegq_s8(sign_down) + VTBL.8 D26,{D21},D26 @II vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) + MVNLT r10,#0 @III + MOVGT r10,#1 @III SIGN(pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + VEXT.8 Q7,Q7,Q7,#2 @II sign_up = vextq_s8(sign_up, sign_up, 2) + VTBL.8 D27,{D21},D27 @II vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) + VCGT.U8 Q11,Q8,Q9 @III vcgtq_u8(pu1_cur_row, pu1_next_row_tmp) + + VMOV.8 D15[6],r9 @III sign_up = sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[14] -pu1_src_cpy[16 - src_strd]), sign_up, 0) + VAND Q13,Q13,Q4 @II edge_idx = vandq_s8(edge_idx, au1_mask) + + VMOV.8 D15[7],r10 @III sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[15] -pu1_src_cpy[17 - src_strd]), sign_up, 1) + VUZP.8 D26,D27 @II + + VCLT.U8 Q10,Q8,Q9 @III vcltq_u8(pu1_cur_row, pu1_next_row_tmp) + VTBL.8 D24,{D6},D26 @II + VSUB.U8 Q11,Q10,Q11 @III sign_down = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + + VADD.I8 Q9,Q0,Q7 @III edge_idx = vaddq_s8(const_2, sign_up) + VTBL.8 D25,{D7},D27 @II + VADD.I8 Q9,Q9,Q11 @III edge_idx = vaddq_s8(edge_idx, sign_down) + + VLD1.8 D20,[r2] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + VZIP.8 D24,D25 @II + + VMOVL.U8 Q14,D12 @II pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) + VTBL.8 D18,{D20},D18 @III vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) + VNEG.S8 Q7,Q11 @III sign_up = vnegq_s8(sign_down) + + VADDW.S8 Q14,Q14,D24 @II pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) + VTBL.8 D19,{D20},D19 @III vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) + VEXT.8 Q7,Q7,Q7,#2 @III sign_up = vextq_s8(sign_up, sign_up, 2) + + VMOVL.U8 Q13,D13 @II pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) + VAND Q9,Q9,Q4 @III edge_idx = vandq_s8(edge_idx, au1_mask) + + VMOVL.U8 Q10,D16 @III pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) + VUZP.8 D18,D19 @III + + VMAX.S16 Q14,Q14,Q1 @II pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) + VTBL.8 D22,{D6},D18 @III + VMIN.U16 Q14,Q14,Q2 @II pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) + + VADDW.S8 Q13,Q13,D25 @II pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) + VTBL.8 D23,{D7},D19 @III + VMAX.S16 Q13,Q13,Q1 @II pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) + + VMOVL.U8 Q9,D17 @III pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) + VZIP.8 D22,D23 @III + + VMOVN.I16 D28,Q14 @II vmovn_s16(pi2_tmp_cur_row.val[0]) + VADDW.S8 Q10,Q10,D22 @III pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) + + VMOV Q6,Q15 @III pu1_cur_row = pu1_next_row + VMIN.U16 Q13,Q13,Q2 @II pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) + + SUB r7,r7,#1 @III Decrement the ht_tmp loop count by 1 + VMAX.S16 Q10,Q10,Q1 @III pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) + CMP r7,#1 @III + + VMOVN.I16 D29,Q13 @II vmovn_s16(pi2_tmp_cur_row.val[1]) + VMIN.U16 Q10,Q10,Q2 @III pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) + + VADDW.S8 Q9,Q9,D23 @III pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) + + VMAX.S16 Q9,Q9,Q1 @III pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) + + VST1.8 {Q14},[r0],r1 @II vst1q_u8(pu1_src_cpy, pu1_cur_row) + VMIN.U16 Q9,Q9,Q2 @III pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) + + BGT PU1_SRC_LOOP @If not equal jump to PU1_SRC_LOOP + BLT INNER_LOOP_DONE + + + ADD r11,r0,r1,LSL #1 @*pu1_src + src_strd + VMOVN.I16 D20,Q10 @III vmovn_s16(pi2_tmp_cur_row.val[0]) + SUB r5,r12,r7 @ht_tmp - row + + ADD r8,r14,r5,LSL #1 @pu1_src_left_cpy[(ht_tmp - row) * 2] + VMOVN.I16 D21,Q9 @III vmovn_s16(pi2_tmp_cur_row.val[1]) + CMP r7,#1 + + LDRB r4,[r0,#16] @load the value pu1_src_cpy[16 - src_strd] + VLD1.8 D16,[r11]! @pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + VLD1.8 D17,[r11] @pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + SUB r11,#8 + LDRB r9,[r0,#17] @load the value pu1_src_cpy[17 - src_strd] + + BNE NEXT_ROW_POINTER_ASSIGNED_3 + LDR r5,[sp,#0x108] @Loads pu1_avail + LDRB r5,[r5,#3] @pu1_avail[3] + CMP r5,#0 + SUBNE r8,r11,#4 @pu1_src[src_strd - 2] + +NEXT_ROW_POINTER_ASSIGNED_3: + LDRH r5,[r8,#2] + VST1.8 {Q10},[r0],r1 @III vst1q_u8(pu1_src_cpy, pu1_cur_row) + LDRB r8,[r0,#14] @pu1_src_cpy[14] + + SUB r8,r8,r4 @pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd] + VMOV.16 D19[3],r5 @vsetq_lane_u8 + LDRB r10,[r0,#15] @pu1_src_cpy[15] + + CMP r8,#0 + VEXT.8 Q9,Q9,Q8,#14 @pu1_next_row_tmp = vextq_u8(pu1_next_row_tmp, pu1_next_row, 14) + SUB r10,r10,r9 @pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + MVNLT r8,#0 + VLD1.8 D28,[r2] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + MOVGT r8,#1 @SIGN(pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd]) + + CMP r10,#0 + VMOV.8 D15[6],r8 @sign_up = sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[14] -pu1_src_cpy[16 - src_strd]), sign_up, 0) + MVNLT r10,#0 + + MOVGT r10,#1 @SIGN(pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + VMOV.8 D15[7],r10 @sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[15] -pu1_src_cpy[17 - src_strd]), sign_up, 1) + VCGT.U8 Q10,Q6,Q9 @vcgtq_u8(pu1_cur_row, pu1_next_row_tmp) + + VCLT.U8 Q11,Q6,Q9 @vcltq_u8(pu1_cur_row, pu1_next_row_tmp) + VSUB.U8 Q11,Q11,Q10 @sign_down = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + + VADD.I8 Q9,Q0,Q7 @edge_idx = vaddq_s8(const_2, sign_up) + VADD.I8 Q9,Q9,Q11 @edge_idx = vaddq_s8(edge_idx, sign_down) + VTBL.8 D18,{D28},D18 @vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) + VTBL.8 D19,{D28},D19 @vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) + + VAND Q9,Q9,Q4 @edge_idx = vandq_s8(edge_idx, au1_mask) + + VMOVL.U8 Q10,D12 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) + VUZP.8 D18,D19 + + VTBL.8 D22,{D6},D18 + VTBL.8 D23,{D7},D19 + + VMOVL.U8 Q9,D13 @pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) + VZIP.8 D22,D23 + + VADDW.S8 Q10,Q10,D22 @pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) + VMAX.S16 Q10,Q10,Q1 @pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) + VMIN.U16 Q10,Q10,Q2 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) + + VADDW.S8 Q9,Q9,D23 @pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) + VMAX.S16 Q9,Q9,Q1 @pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) + VMIN.U16 Q9,Q9,Q2 @pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) + + +INNER_LOOP_DONE: + + LDR r8,[sp,#0x118] @Loads ht + VMOVN.I16 D20,Q10 @III vmovn_s16(pi2_tmp_cur_row.val[0]) + ADD r5,sp,#0x4B @*au1_src_left_tmp + + LSL r8,r8,#1 + VMOVN.I16 D21,Q9 @III vmovn_s16(pi2_tmp_cur_row.val[1]) + LDR r11,[sp,#0x104] @Loads *pu1_src_left + +SRC_LEFT_LOOP: + LDR r7,[r5],#4 @au1_src_left_tmp[row] + SUBS r8,r8,#4 + STR r7,[r11],#4 @pu1_src_left[row] = au1_src_left_tmp[row] + BNE SRC_LEFT_LOOP + + SUBS r6,r6,#16 @Decrement the wd loop count by 16 + VST1.8 {Q10},[r0],r1 @III vst1q_u8(pu1_src_cpy, pu1_cur_row) + CMP r6,#8 @Check whether residue remains + + BLT RE_ASSINING_LOOP @Jump to re-assigning loop + LDR r7,[sp,#0x114] @Loads wd + LDR r0,[sp,#0x02] @Loads *pu1_src + SUB r7,r7,r6 + ADD r0,r0,r7 + BGT WIDTH_LOOP_16 @If not equal jump to width_loop + BEQ WIDTH_RESIDUE @If residue remains jump to residue loop + +WD_16_HT_4_LOOP: + LDR r7,[sp,#0x114] @Loads wd + + LDR r5,[sp,#0x108] @Loads pu1_avail + CMP r6,r7 @col == wd + + LDREQB r8,[r5] @pu1_avail[0] + MOVNE r8,#-1 + VMOV.8 D8[0],r8 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) + + CMP r6,#16 @if(col == 16) + VMOV.8 D8[1],r8 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) + + BNE SKIP_AU1_MASK_VAL_WD_16_HT_4 + LDRB r8,[r5,#1] @pu1_avail[1] + VMOV.8 D9[6],r8 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) + VMOV.8 D9[7],r8 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) + +SKIP_AU1_MASK_VAL_WD_16_HT_4: + LDRB r11,[r5,#2] @pu1_avail[2] + SUBEQ r8,r0,r1 @pu1_src - src_strd + + CMP r11,#0 + MOVNE r8,r3 + VLD1.8 D12,[r0]! @pu1_cur_row = vld1q_u8(pu1_src) + VLD1.8 D13,[r0] @pu1_cur_row = vld1q_u8(pu1_src) + SUB r0,#8 + ADD r8,r8,#2 @pu1_src - src_strd + 2 + + ADD r3,r3,#16 + VLD1.8 D10,[r8]! @pu1_top_row = vld1q_u8(pu1_src - src_strd + 2) + VLD1.8 D11,[r8] @pu1_top_row = vld1q_u8(pu1_src - src_strd + 2) + SUB r8,#8 + ADD r5,sp,#0x4B @*au1_src_left_tmp + + LDR r4,[sp,#0x118] @Loads ht + VCGT.U8 Q7,Q6,Q5 @vcgtq_u8(pu1_cur_row, pu1_top_row) + LDR r7,[sp,#0x114] @Loads wd + + SUB r7,r7,r6 @(wd - col) + VCLT.U8 Q8,Q6,Q5 @vcltq_u8(pu1_cur_row, pu1_top_row) + ADD r7,r7,#14 @15 + (wd - col) + + LDR r8,[sp,#0x100] @Loads *pu1_src + VSUB.U8 Q7,Q8,Q7 @sign_up = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + ADD r7,r8,r7 @pu1_src[0 * src_strd + 15 + (wd - col)] + +AU1_SRC_LEFT_LOOP_WD_16_HT_4: + LDRH r8,[r7] @load the value and increment by src_strd + SUBS r4,r4,#1 @decrement the loop count + + STRH r8,[r5],#2 @store it in the stack pointer + ADD r7,r7,r1 + BNE AU1_SRC_LEFT_LOOP_WD_16_HT_4 + + VMOV.I8 Q9,#0 + MOV r7,r12 @row count, move ht_tmp to r7 + +PU1_SRC_LOOP_WD_16_HT_4: + ADD r9,r0,r1 @*pu1_src + src_strd + + LDR r5,[sp,#0x108] @Loads pu1_avail + VLD1.8 D16,[r9]! @pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + VLD1.8 D17,[r9] @pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + SUB r9,#8 + LDRB r5,[r5,#3] @pu1_avail[3] + + SUB r11,r12,r7 @ht_tmp - row + ADD r8,r14,r11,LSL #1 @pu1_src_left_cpy[(ht_tmp - row) * 2] + ADD r8,r8,#2 @pu1_src_left_cpy[(ht_tmp - row + 1) * 2] + + CMP r5,#0 + BEQ NEXT_ROW_POINTER_ASSIGNED_WD_16_HT_4 + CMP r7,#1 + SUBEQ r8,r9,#2 @pu1_src[src_strd - 2] + +NEXT_ROW_POINTER_ASSIGNED_WD_16_HT_4: + LDRH r5,[r8] + VMOV.16 D19[3],r5 @vsetq_lane_u8 + VEXT.8 Q9,Q9,Q8,#14 @pu1_next_row_tmp = vextq_u8(pu1_next_row_tmp, pu1_next_row, 14) + + CMP r7,r12 + BLT SIGN_UP_CHANGE_WD_16_HT_4 + LDR r5,[sp,#0x108] @Loads pu1_avail + LDRB r5,[r5,#2] @pu1_avail[2] + CMP r5,#0 + BNE SIGN_UP_CHANGE_DONE_WD_16_HT_4 + +SIGN_UP_CHANGE_WD_16_HT_4: + LDRB r8,[r0,#14] @pu1_src_cpy[14] + SUB r9,r0,r1 + + LDRB r5,[r9,#16] @load the value pu1_src_cpy[16 - src_strd] + + LDRB r10,[r0,#15] @pu1_src_cpy[15] + SUB r8,r8,r5 @pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd] + + LDRB r11,[r9,#17] @load the value pu1_src_cpy[17 - src_strd] + CMP r8,#0 + + MVNLT r8,#0 + SUB r10,r10,r11 @pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + MOVGT r8,#1 @SIGN(pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd]) + + CMP r10,#0 + VMOV.8 D15[6],r8 @sign_up = sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[14] -pu1_src_cpy[16 - src_strd]), sign_up, 0) + MVNLT r10,#0 + + MOVGT r10,#1 @SIGN(pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + VMOV.8 D15[7],r10 @sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[15] -pu1_src_cpy[17 - src_strd]), sign_up, 1) + +SIGN_UP_CHANGE_DONE_WD_16_HT_4: + VLD1.8 D20,[r2] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + VCGT.U8 Q11,Q6,Q9 @vcgtq_u8(pu1_cur_row, pu1_next_row_tmp) + + VCLT.U8 Q12,Q6,Q9 @vcltq_u8(pu1_cur_row, pu1_next_row_tmp) + VSUB.U8 Q12,Q12,Q11 @sign_down = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + + VADD.I8 Q13,Q0,Q7 @edge_idx = vaddq_s8(const_2, sign_up) + VADD.I8 Q13,Q13,Q12 @edge_idx = vaddq_s8(edge_idx, sign_down) + + VNEG.S8 Q7,Q12 @sign_up = vnegq_s8(sign_down) + VTBL.8 D26,{D20},D26 @vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) + + VTBL.8 D27,{D20},D27 @vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) + VEXT.8 Q7,Q7,Q7,#2 @sign_up = vextq_s8(sign_up, sign_up, 2) + + VMOVL.U8 Q14,D12 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) + VAND Q13,Q13,Q4 @edge_idx = vandq_s8(edge_idx, au1_mask) + + + VUZP.8 D26,D27 + VTBL.8 D24,{D6},D26 + VTBL.8 D25,{D7},D27 + VZIP.8 D24,D25 + + VMOVL.U8 Q15,D13 @pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(pu1_cur_row))) + VADDW.S8 Q14,Q14,D24 @pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) + + VMAX.S16 Q14,Q14,Q1 @pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) + VMIN.U16 Q14,Q14,Q2 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) + + VMOV Q6,Q8 @pu1_cur_row = pu1_next_row + VADDW.S8 Q15,Q15,D25 @pi2_tmp_cur_row.val[1] = vaddw_s8(pi2_tmp_cur_row.val[1], offset) + + VMAX.S16 Q15,Q15,Q1 @pi2_tmp_cur_row.val[1] = vmaxq_s16(pi2_tmp_cur_row.val[1], const_min_clip) + VMIN.U16 Q15,Q15,Q2 @pi2_tmp_cur_row.val[1] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[1]), const_max_clip)) + + VMOVN.I16 D28,Q14 @vmovn_s16(pi2_tmp_cur_row.val[0]) + VMOVN.I16 D29,Q15 @vmovn_s16(pi2_tmp_cur_row.val[1]) + + SUBS r7,r7,#1 @Decrement the ht_tmp loop count by 1 + VST1.8 {Q14},[r0],r1 @vst1q_u8(pu1_src_cpy, pu1_cur_row) + BNE PU1_SRC_LOOP_WD_16_HT_4 @If not equal jump to PU1_SRC_LOOP_WD_16_HT_4 + + LDR r8,[sp,#0x118] @Loads ht + ADD r5,sp,#0x4B @*au1_src_left_tmp + LDR r11,[sp,#0x104] @Loads *pu1_src_left + +SRC_LEFT_LOOP_WD_16_HT_4: + LDR r7,[r5],#4 @au1_src_left_tmp[row] + SUBS r8,r8,#2 + STR r7,[r11],#4 @pu1_src_left[row] = au1_src_left_tmp[row] + BNE SRC_LEFT_LOOP_WD_16_HT_4 + + SUBS r6,r6,#16 @Decrement the wd loop count by 16 + BLE RE_ASSINING_LOOP @Jump to re-assigning loop + BGT WD_16_HT_4_LOOP @If not equal jump to width_loop + +WIDTH_RESIDUE: + LDR r7,[sp,#0x114] @Loads wd + + LDR r5,[sp,#0x108] @Loads pu1_avail + CMP r6,r7 @wd_residue == wd + + LDREQB r8,[r5] @pu1_avail[0] + + MOVNE r8,#-1 + LDRB r11,[r5,#1] @pu1_avail[1] + + LDRB r9,[r5,#2] @pu1_avail[2] + VMOV.8 d8[0],r8 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) + CMP r9,#0 + + SUBEQ r10,r0,r1 @pu1_src - src_strd + VMOV.8 d8[1],r8 @au1_mask = vsetq_lane_s8(-1, au1_mask, 0) + MOVNE r10,r3 + + ADD r10,r10,#2 @pu1_src - src_strd + 2 + VMOV.8 d8[6],r11 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) + ADD r5,sp,#0x4B @*au1_src_left_tmp + + LDR r4,[sp,#0x118] @Loads ht + VMOV.8 d8[7],r11 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15) + LDR r7,[sp,#0x114] @Loads wd + + LDR r8,[sp,#0x100] @Loads *pu1_src + VLD1.8 D10,[r10]! @pu1_top_row = vld1q_u8(pu1_src - src_strd + 2) + VLD1.8 D11,[r10] @pu1_top_row = vld1q_u8(pu1_src - src_strd + 2) + SUB r10,#8 + SUB r7,r7,#2 @(wd - 2) + + ADD r7,r8,r7 @pu1_src[0 * src_strd + (wd - 2)] + +AU1_SRC_LEFT_LOOP_RESIDUE: + LDRH r8,[r7] @load the value and increment by src_strd + ADD r7,r7,r1 + STRH r8,[r5],#2 @store it in the stack pointer + SUBS r4,r4,#1 @decrement the loop count + BNE AU1_SRC_LEFT_LOOP_RESIDUE + + VLD1.8 D12,[r0]! @pu1_cur_row = vld1q_u8(pu1_src) + VLD1.8 D13,[r0] @pu1_cur_row = vld1q_u8(pu1_src) + SUB r0,#8 + + VMOV.I8 Q9,#0 + VCGT.U8 Q7,Q6,Q5 @vcgtq_u8(pu1_cur_row, pu1_top_row) + + VCLT.U8 Q8,Q6,Q5 @vcltq_u8(pu1_cur_row, pu1_top_row) + VSUB.U8 Q7,Q8,Q7 @sign_up = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + MOV r7,r12 @row count, move ht_tmp to r7 + +PU1_SRC_LOOP_RESIDUE: + ADD r9,r0,r1 @*pu1_src + src_strd + + SUB r11,r12,r7 @ht_tmp - row + VLD1.8 D16,[r9]! @pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + VLD1.8 D17,[r9] @pu1_next_row = vld1q_u8(pu1_src_cpy + src_strd) + SUB r9,#8 + LDR r5,[sp,#0x108] @Loads pu1_avail + + LDRB r5,[r5,#3] @pu1_avail[3] + ADD r8,r14,r11,LSL #1 @pu1_src_left_cpy[(ht_tmp - row) * 2] + + CMP r5,#0 + ADD r8,r8,#2 @pu1_src_left_cpy[(ht_tmp - row + 1) * 2] + + BEQ NEXT_ROW_POINTER_ASSIGNED_RESIDUE + CMP r7,#1 + SUBEQ r8,r9,#2 @pu1_src[src_strd - 2] + +NEXT_ROW_POINTER_ASSIGNED_RESIDUE: + LDRB r5,[r8] + + LDRB r8,[r8,#1] + VMOV.8 D19[6],r5 @vsetq_lane_u8 + CMP r7,r12 + + VMOV.8 D19[7],r8 @vsetq_lane_u8 + VEXT.8 Q9,Q9,Q8,#14 @pu1_next_row_tmp = vextq_u8(pu1_next_row_tmp, pu1_next_row, 14) + + BLT SIGN_UP_CHANGE_RESIDUE + LDR r5,[sp,#0x108] @Loads pu1_avail + LDRB r5,[r5,#2] @pu1_avail[2] + CMP r5,#0 + BNE SIGN_UP_CHANGE_DONE_RESIDUE + +SIGN_UP_CHANGE_RESIDUE: + LDRB r8,[r0,#14] @pu1_src_cpy[14] + SUB r9,r0,r1 + + LDRB r5,[r9,#16] @load the value pu1_src_cpy[16 - src_strd] + + LDRB r10,[r0,#15] @pu1_src_cpy[15] + SUB r8,r8,r5 @pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd] + + LDRB r11,[r9,#17] @load the value pu1_src_cpy[17 - src_strd] + CMP r8,#0 + + MVNLT r8,#0 + SUB r10,r10,r11 @pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + + MOVGT r8,#1 @SIGN(pu1_src_cpy[14] - pu1_src_cpy[16 - src_strd]) + + CMP r10,#0 + VMOV.8 D15[6],r8 @sign_up = sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[14] -pu1_src_cpy[16 - src_strd]), sign_up, 0) + MVNLT r10,#0 + + MOVGT r10,#1 @SIGN(pu1_src_cpy[15] - pu1_src_cpy[17 - src_strd] + VMOV.8 D15[7],r10 @sign_up = vsetq_lane_s8(SIGN(pu1_src_cpy[15] -pu1_src_cpy[17 - src_strd]), sign_up, 1) + +SIGN_UP_CHANGE_DONE_RESIDUE: + VLD1.8 D20,[r2] @edge_idx_tbl = vld1_s8(gi1_table_edge_idx) + VCGT.U8 Q11,Q6,Q9 @vcgtq_u8(pu1_cur_row, pu1_next_row_tmp) + + VCLT.U8 Q12,Q6,Q9 @vcltq_u8(pu1_cur_row, pu1_next_row_tmp) + VSUB.U8 Q12,Q12,Q11 @sign_down = vreinterpretq_s8_u8(vsubq_u8(cmp_lt, cmp_gt)) + + VADD.I8 Q13,Q0,Q7 @edge_idx = vaddq_s8(const_2, sign_up) + VADD.I8 Q13,Q13,Q12 @edge_idx = vaddq_s8(edge_idx, sign_down) + + VNEG.S8 Q7,Q12 @sign_up = vnegq_s8(sign_down) + VTBL.8 D26,{D20},D26 @vtbl1_s8(edge_idx_tbl, vget_low_s8(edge_idx)) + + VTBL.8 D27,{D20},D27 @vtbl1_s8(edge_idx_tbl, vget_high_s8(edge_idx)) + VEXT.8 Q7,Q7,Q7,#2 @sign_up = vextq_s8(sign_up, sign_up, 14) + + VMOVL.U8 Q14,D12 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(pu1_cur_row))) + VAND Q13,Q13,Q4 @edge_idx = vandq_s8(edge_idx, au1_mask) + + + VUZP.8 D26,D27 + VTBL.8 D24,{D6},D26 + VTBL.8 D25,{D7},D27 + VZIP.8 D24,D25 + + VMOV Q6,Q8 @pu1_cur_row = pu1_next_row + VADDW.S8 Q14,Q14,D24 @pi2_tmp_cur_row.val[0] = vaddw_s8(pi2_tmp_cur_row.val[0], offset) + + VMAX.S16 Q14,Q14,Q1 @pi2_tmp_cur_row.val[0] = vmaxq_s16(pi2_tmp_cur_row.val[0], const_min_clip) + VMIN.U16 Q14,Q14,Q2 @pi2_tmp_cur_row.val[0] = vreinterpretq_s16_u16(vminq_u16(vreinterpretq_u16_s16(pi2_tmp_cur_row.val[0]), const_max_clip)) + + SUBS r7,r7,#1 @Decrement the ht_tmp loop count by 1 + VMOVN.I16 D30,Q14 @vmovn_s16(pi2_tmp_cur_row.val[0]) + + VST1.8 {D30},[r0],r1 @vst1q_u8(pu1_src_cpy, pu1_cur_row) + + BNE PU1_SRC_LOOP_RESIDUE @If not equal jump to PU1_SRC_LOOP + + LDR r8,[sp,#0x118] @Loads ht + ADD r5,sp,#0x4B @*au1_src_left_tmp + + LDR r11,[sp,#0x104] @Loads *pu1_src_left + +SRC_LEFT_LOOP_RESIDUE: + LDR r7,[r5],#4 @au1_src_left_tmp[row] + SUBS r8,r8,#2 + STR r7,[r11],#4 @pu1_src_left[row] = au1_src_left_tmp[row] + BNE SRC_LEFT_LOOP_RESIDUE + + +RE_ASSINING_LOOP: + LDR r7,[sp,#0x114] @Loads wd + LDR r8,[sp,#0x118] @Loads ht + + LDR r0,[sp,#0x100] @Loads *pu1_src + SUB r10,r7,#2 @wd - 2 + + LDRH r9,[sp,#6] + SUB r8,r8,#1 @ht - 1 + + STRH r9,[r0,r10] @pu1_src_org[0] = u1_pos_0_0_tmp + MLA r6,r8,r1,r0 @pu1_src[(ht - 1) * src_strd] + + LDR r4,[sp,#0xFC] @Loads pu1_src_top_left + + LDRH r9,[sp,#8] + ADD r12,sp,#10 + + STRH r9,[r6] @pu1_src_org[(ht - 1) * src_strd] = u1_pos_wd_ht_tmp_u + + LDRH r10,[sp] @load u1_src_top_left_tmp from stack pointer + STRH r10,[r4] @*pu1_src_top_left = u1_src_top_left_tmp + LDR r3,[sp,#0x10C] @Loads pu1_src_top + +SRC_TOP_LOOP: + VLD1.8 D0,[r12]! @pu1_src_top[col] = au1_src_top_tmp[col] + SUBS r7,r7,#8 @Decrement the width + VST1.8 D0,[r3]! @pu1_src_top[col] = au1_src_top_tmp[col] + BNE SRC_TOP_LOOP + +END_LOOPS: + ADD sp,sp,#0xD4 + LDMFD sp!,{r4-r12,r15} @Reload the registers from SP + + + |