@/*****************************************************************************
@*
@* 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
.equ pu1_src_top_left_offset, 328
.equ pu1_src_top_right_offset, 332
.equ pu1_src_bot_left_offset, 336
.equ pu1_avail_offset, 340
.equ pi1_sao_u_offset, 344
.equ pi1_sao_v_offset, 348
.equ wd_offset, 352
.equ ht_offset, 356
.text
.syntax unified
.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
vpush {d8 - d15}
SUB sp,sp,#224 @Decrement the stack pointer to store some temp arr values
LDR r7,[sp,#wd_offset] @Loads wd
LDR r8,[sp,#ht_offset] @Loads ht
SUB r9,r7,#2 @wd - 2
LDR r4,[sp,#pu1_src_top_left_offset] @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,#pu1_avail_offset] @Loads pu1_avail
LDR r6,[sp,#pi1_sao_u_offset] @Loads pi1_sao_offset_u
STR r3,[sp,#220] @Store pu1_src_top in sp
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,#pu1_src_top_right_offset] @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,#pu1_src_top_right_offset] @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,#pi1_sao_v_offset] @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,#212] @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,#pu1_src_bot_left_offset] @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,#pu1_src_bot_left_offset] @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,#pi1_sao_v_offset] @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,#216] @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,#pi1_sao_v_offset] @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,#wd_offset] @Loads wd
CMP r6,r7 @col == wd
LDR r5,[sp,#pu1_avail_offset] @Loads pu1_avail
LDRBEQ 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,#75 @*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,#ht_offset] @Loads ht
VCGT.U8 Q7,Q6,Q5 @vcgtq_u8(pu1_cur_row, pu1_top_row)
LDR r7,[sp,#wd_offset] @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,#212] @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,#pu1_avail_offset] @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,#pu1_avail_offset] @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,#pu1_avail_offset] @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,#ht_offset] @Loads ht
VMOVN.I16 D20,Q10 @III vmovn_s16(pi2_tmp_cur_row.val[0])
ADD r5,sp,#75 @*au1_src_left_tmp
LSL r8,r8,#1
VMOVN.I16 D21,Q9 @III vmovn_s16(pi2_tmp_cur_row.val[1])
LDR r11,[sp,#216] @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,#wd_offset] @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,#wd_offset] @Loads wd
LDR r5,[sp,#pu1_avail_offset] @Loads pu1_avail
CMP r6,r7 @col == wd
LDRBEQ 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]
CMP r11,#0
SUBEQ r8,r0,r1 @pu1_src - src_strd
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,#75 @*au1_src_left_tmp
LDR r4,[sp,#ht_offset] @Loads ht
VCGT.U8 Q7,Q6,Q5 @vcgtq_u8(pu1_cur_row, pu1_top_row)
LDR r7,[sp,#wd_offset] @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,#212] @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,#pu1_avail_offset] @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,#pu1_avail_offset] @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,#ht_offset] @Loads ht
ADD r5,sp,#75 @*au1_src_left_tmp
LDR r11,[sp,#216] @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
LDR r7,[sp,#wd_offset] @Loads wd
LDR r0,[sp,#0x02] @Loads *pu1_src
SUB r7,r7,r6
ADD r0,r0,r7
BGT WD_16_HT_4_LOOP @If not equal jump to width_loop
WIDTH_RESIDUE:
LDR r7,[sp,#wd_offset] @Loads wd
LDR r5,[sp,#pu1_avail_offset] @Loads pu1_avail
CMP r6,r7 @wd_residue == wd
LDRBEQ 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,#75 @*au1_src_left_tmp
LDR r4,[sp,#ht_offset] @Loads ht
VMOV.8 d8[7],r11 @au1_mask = vsetq_lane_s8(pu1_avail[1], au1_mask, 15)
LDR r7,[sp,#wd_offset] @Loads wd
LDR r8,[sp,#212] @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,#pu1_avail_offset] @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,#pu1_avail_offset] @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,#ht_offset] @Loads ht
ADD r5,sp,#75 @*au1_src_left_tmp
LDR r11,[sp,#216] @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,#wd_offset] @Loads wd
LDR r8,[sp,#ht_offset] @Loads ht
LDR r0,[sp,#212] @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,#pu1_src_top_left_offset] @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,#220] @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,#224
vpop {d8 - d15}
LDMFD sp!,{r4-r12,r15} @Reload the registers from SP