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|
@/*****************************************************************************
@*
@* 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_intra_pred_chroma_mode_27_to_33.s
@*
@* @brief
@* contains function definition for intra prediction interpolation filters
@*
@*
@* @author
@* parthiban v
@*
@* @par list of functions:
@* - ihevc_intra_pred_chroma_mode_27_to_33()
@*
@* @remarksll
@* none
@*
@*******************************************************************************
@*/
@/**
@*******************************************************************************
@*
@* @brief
@* intraprediction for mode 27 to 33 (positive angle, vertical mode ) with
@* neighboring samples location pointed by 'pu1_ref' to the tu
@* block location pointed by 'pu1_dst'
@*
@* @par description:
@*
@*
@* @param[in] pu1_src
@* uword8 pointer to the source
@*
@* @param[in] pu1_dst
@* uword8 pointer to the destination
@*
@* @param[in] src_strd
@* integer source stride
@*
@* @param[in] dst_strd
@* integer destination stride
@*
@* @param[in] nt
@* integer transform block size
@*
@* @param[in] mode
@* integer intraprediction mode
@*
@* @returns
@*
@* @remarks
@* none
@*
@*******************************************************************************
@*/
@.if intra_pred_chroma_27_t0_33 == c
@void ihevc_intra_pred_chroma_mode_27_to_33(uword8 *pu1_ref,
@ word32 src_strd,
@ uword8 *pu1_dst,
@ word32 dst_strd,
@ word32 nt,
@ word32 mode)
.text
.align 4
.globl ihevc_intra_pred_chroma_mode_27_to_33_a9q
.extern gai4_ihevc_ang_table
.extern gau1_ihevc_planar_factor
gai4_ihevc_ang_table_addr:
.long gai4_ihevc_ang_table - ulbl1 - 8
gau1_ihevc_planar_factor_addr:
.long gau1_ihevc_planar_factor - ulbl2 - 8
.type ihevc_intra_pred_chroma_mode_27_to_33_a9q, %function
ihevc_intra_pred_chroma_mode_27_to_33_a9q:
stmfd sp!, {r4-r12, r14} @stack stores the values of the arguments
ldr r4,[sp,#40] @loads nt
ldr r5,[sp,#44] @loads mode
ldr r6,gai4_ihevc_ang_table_addr @loads word32 gai4_ihevc_ang_table[35]
ulbl1:
add r6,r6,pc
lsl r7,r4,#2 @four_nt
add r8,r6,r5,lsl #2 @*gai4_ihevc_ang_table[mode]
ldr r9,[r8] @intra_pred_ang = gai4_ihevc_ang_table[mode]
ldr r1,gau1_ihevc_planar_factor_addr @used for ((row + 1) * intra_pred_ang) row values
ulbl2:
add r1,r1,pc
add r6,r1,#1
tst r4,#7
add r8,r0,r7 @pu1_ref + four_nt
mov lr,#0 @row
mov r12,r4
bne core_loop_4
lsl r4,r4,#1
b core_loop_8
core_loop_8:
add r8,r8,#2 @pu1_ref_main_idx += (four_nt + 1)
vdup.8 d0,r9 @intra_pred_ang
mov r12,r4,lsr #4 @divide by 8
vmov.i8 d1,#32
mul r7,r4,r12
vmov.i16 q3,#31
mov r1,r8
mov r5,r4
mov r11,#2
prologue:
vld1.8 {d3},[r6] @loads the row value
vmull.u8 q1,d3,d0 @pos = ((row + 1) * intra_pred_ang)
vand q2,q1,q3 @dup_const_fract(fract = pos & (31))
vmovn.i16 d4,q2
vshrn.u16 d5,q1,#5 @idx = pos >> 5
vdup.8 d31,d4[0]
add r0,r2,r3
vmov.u32 lr,d5[0] @(i row)extract idx to the r register
lsl lr,lr,#1
vdup.8 d29,d4[1] @(ii)
and r9,lr,#0xff @(i row) get the last byte
add r10,r8,r9 @(i row)*pu1_ref[ref_main_idx]
asr lr,lr,#8 @(ii)shift by 8
vld1.8 {d8},[r10],r11 @(i row)ref_main_idx
and r9,lr,#0xff @(ii)get the last byte
asr lr,lr,#8 @(iii)
vld1.8 {d9},[r10] @(i row)ref_main_idx_1
add r12,r8,r9 @(ii)*pu1_ref[ref_main_idx]
and r9,lr,#0xff @(iii)
vsub.u8 d30,d1,d31 @32-fract(dup_const_32_fract)
add r10,r8,r9 @(iii)*pu1_ref[ref_main_idx]
vld1.8 {d12},[r12],r11 @(ii)ref_main_idx
vmull.u8 q5,d8,d30 @(i row)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d13},[r12] @(ii)ref_main_idx_1
vmlal.u8 q5,d9,d31 @(i row)vmull_u8(ref_main_idx_1, dup_const_fract)
asr lr,lr,#8 @(iv)
vdup.8 d27,d4[2] @(iii)
vsub.u8 d28,d1,d29 @(ii)32-fract(dup_const_32_fract)
and r9,lr,#0xff @(iv)
vdup.8 d25,d4[3] @(iv)
vmull.u8 q7,d12,d28 @(ii)vmull_u8(ref_main_idx, dup_const_32_fract)
add r12,r8,r9 @(iv)*pu1_ref[ref_main_idx]
vld1.8 {d16},[r10],r11 @(iii)ref_main_idx
vmlal.u8 q7,d13,d29 @(ii)vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d17},[r10] @(iii)ref_main_idx_1
vrshrn.i16 d10,q5,#5 @(i row)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d20},[r12],r11 @(iv)ref_main_idx
vsub.u8 d26,d1,d27 @(iii)32-fract(dup_const_32_fract)
vld1.8 {d21},[r12] @(iv)ref_main_idx_1
vdup.8 d31,d4[4] @(v)
vmull.u8 q9,d16,d26 @(iii)vmull_u8(ref_main_idx, dup_const_32_fract)
vmov.u32 lr,d5[1] @extract idx to the r register
vmlal.u8 q9,d17,d27 @(iii)vmull_u8(ref_main_idx_1, dup_const_fract)
lsl lr,lr,#1
vst1.8 {d10},[r2]! @(i row)
vrshrn.i16 d14,q7,#5 @(ii)shift_res = vrshrn_n_u16(add_res, 5)
and r9,lr,#0xff @(v)
vdup.8 d29,d4[5] @(vi)
add r10,r8,r9 @(v)*pu1_ref[ref_main_idx]
vld1.8 {d8},[r10],r11 @(v)ref_main_idx
vsub.u8 d24,d1,d25 @(iv)32-fract(dup_const_32_fract)
asr lr,lr,#8 @(vi)
vmull.u8 q11,d20,d24 @(iv)vmull_u8(ref_main_idx, dup_const_32_fract)
and r9,lr,#0xff @(vi)
vld1.8 {d9},[r10] @(v)ref_main_idx_1
vmlal.u8 q11,d21,d25 @(iv)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d14},[r0],r3 @(ii)
vrshrn.i16 d18,q9,#5 @(iii)shift_res = vrshrn_n_u16(add_res, 5)
add r12,r8,r9 @(vi)*pu1_ref[ref_main_idx]
vdup.8 d27,d4[6] @(vii)
asr lr,lr,#8 @(vii)
and r9,lr,#0xff @(vii)
vsub.u8 d30,d1,d31 @(v)32-fract(dup_const_32_fract)
add r10,r8,r9 @(vii)*pu1_ref[ref_main_idx]
vld1.8 {d12},[r12],r11 @(vi)ref_main_idx
vmull.u8 q5,d8,d30 @(v)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d13},[r12] @(vi)ref_main_idx_1
vmlal.u8 q5,d9,d31 @(v)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d18},[r0],r3 @(iii)
vrshrn.i16 d22,q11,#5 @(iv)shift_res = vrshrn_n_u16(add_res, 5)
asr lr,lr,#8 @(viii)
vdup.8 d25,d4[7] @(viii)
and r9,lr,#0xff @(viii)
vld1.8 {d16},[r10],r11 @(vii)ref_main_idx
vsub.u8 d28,d1,d29 @(vi)32-fract(dup_const_32_fract)
vld1.8 {d17},[r10] @(vii)ref_main_idx_1
vmull.u8 q7,d12,d28 @(vi)vmull_u8(ref_main_idx, dup_const_32_fract)
add r12,r8,r9 @(viii)*pu1_ref[ref_main_idx]
vmlal.u8 q7,d13,d29 @(vi)vmull_u8(ref_main_idx_1, dup_const_fract)
subs r7,r7,#8
vst1.8 {d22},[r0],r3 @(iv)
vrshrn.i16 d10,q5,#5 @(v)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d20},[r12],r11 @(viii)ref_main_idx
vsub.u8 d26,d1,d27 @(vii)32-fract(dup_const_32_fract)
vld1.8 {d21},[r12] @(viii)ref_main_idx_1
vmull.u8 q9,d16,d26 @(vii)vmull_u8(ref_main_idx, dup_const_32_fract)
addgt r8,r8,#8
vmlal.u8 q9,d17,d27 @(vii)vmull_u8(ref_main_idx_1, dup_const_fract)
subgt r4,r4,#8
vst1.8 {d10},[r0],r3 @(v)
vrshrn.i16 d14,q7,#5 @(vi)shift_res = vrshrn_n_u16(add_res, 5)
beq epilogue
vld1.8 {d5},[r6] @loads the row value
vmull.u8 q1,d5,d0 @pos = ((row + 1) * intra_pred_ang)
vand q2,q1,q3 @dup_const_fract(fract = pos & (31))
vmovn.i16 d4,q2
vshrn.u16 d3,q1,#5 @idx = pos >> 5
vmov.u32 lr,d3[0] @(i)extract idx to the r register
lsl lr,lr,#1
and r9,lr,#0xff @(i)
add r10,r8,r9 @(i)*pu1_ref[ref_main_idx]
kernel_8_rows:
asr lr,lr,#8 @(ii)
vdup.8 d31,d4[0]
subs r4,r4,#8
vld1.8 {d8},[r10],r11 @(i)ref_main_idx
vsub.u8 d24,d1,d25 @(viii)32-fract(dup_const_32_fract)
and r9,lr,#0xff @(ii)
addle r6,r6,#8 @increment the row value
vld1.8 {d9},[r10] @(i)ref_main_idx_1
vmull.u8 q11,d20,d24 @(viii)vmull_u8(ref_main_idx, dup_const_32_fract)
add r12,r8,r9 @(ii)*pu1_ref[ref_main_idx]
vld1.8 {d5},[r6] @loads the row value
vmlal.u8 q11,d21,d25 @(viii)vmull_u8(ref_main_idx_1, dup_const_fract)
asr lr,lr,#8 @(iii)
vdup.8 d29,d4[1] @(ii)
vrshrn.i16 d18,q9,#5 @(vii)shift_res = vrshrn_n_u16(add_res, 5)
and r9,lr,#0xff @(iii)
vst1.8 {d14},[r0],r3 @(vi)
vsub.u8 d30,d1,d31 @(i)32-fract(dup_const_32_fract)
add r10,r8,r9 @(iii)*pu1_ref[ref_main_idx]
vld1.8 {d12},[r12],r11 @(ii)ref_main_idx
vmull.u8 q5,d8,d30 @(i)vmull_u8(ref_main_idx, dup_const_32_fract)
asr lr,lr,#8 @(iv)
vld1.8 {d13},[r12] @(ii)ref_main_idx_1
vmlal.u8 q5,d9,d31 @(i)vmull_u8(ref_main_idx_1, dup_const_fract)
and r9,lr,#0xff @(iv)
vmov.u32 lr,d3[1] @extract idx to the r register
vrshrn.i16 d22,q11,#5 @(viii)shift_res = vrshrn_n_u16(add_res, 5)
vdup.8 d27,d4[2] @(iii)
vsub.u8 d28,d1,d29 @(ii)32-fract(dup_const_32_fract)
movle r4,r5 @reload nt
vld1.8 {d16},[r10],r11 @(iii)ref_main_idx
vmull.u8 q7,d12,d28 @(ii)vmull_u8(ref_main_idx, dup_const_32_fract)
add r12,r8,r9 @(iv)*pu1_ref[ref_main_idx]
vst1.8 {d18},[r0],r3 @(vii)
vmlal.u8 q7,d13,d29 @(ii)vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d17},[r10] @(iii)ref_main_idx_1
vrshrn.i16 d10,q5,#5 @(i)shift_res = vrshrn_n_u16(add_res, 5)
vdup.8 d25,d4[3] @(iv)
vmull.u8 q1,d5,d0 @pos = ((row + 1) * intra_pred_ang)
vst1.8 {d22},[r0] @(viii)
vsub.u8 d26,d1,d27 @(iii)32-fract(dup_const_32_fract)
vld1.8 {d20},[r12],r11 @(iv)ref_main_idx
vmull.u8 q9,d16,d26 @(iii)vmull_u8(ref_main_idx, dup_const_32_fract)
lsl lr,lr,#1
vld1.8 {d21},[r12] @(iv)ref_main_idx_1
vmlal.u8 q9,d17,d27 @(iii)vmull_u8(ref_main_idx_1, dup_const_fract)
add r0,r2,r3
vdup.8 d31,d4[4] @(v)
vrshrn.i16 d14,q7,#5 @(ii)shift_res = vrshrn_n_u16(add_res, 5)
and r9,lr,#0xff @(v)
vst1.8 {d10},[r2]! @(i)
vsub.u8 d24,d1,d25 @(iv)32-fract(dup_const_32_fract)
add r10,r8,r9 @(v)*pu1_ref[ref_main_idx]
vdup.8 d29,d4[5] @(vi)
vmull.u8 q11,d20,d24 @(iv)vmull_u8(ref_main_idx, dup_const_32_fract)
asr lr,lr,#8 @(vi)
vdup.8 d27,d4[6] @(vii)
vmlal.u8 q11,d21,d25 @(iv)vmull_u8(ref_main_idx_1, dup_const_fract)
and r9,lr,#0xff @(vi)
vdup.8 d25,d4[7] @(viii)
vrshrn.i16 d18,q9,#5 @(iii)shift_res = vrshrn_n_u16(add_res, 5)
add r12,r8,r9 @(vi)*pu1_ref[ref_main_idx]
vld1.8 {d8},[r10],r11 @(v)ref_main_idx
vand q2,q1,q3 @dup_const_fract(fract = pos & (31))
asr lr,lr,#8 @(vii)
vld1.8 {d9},[r10] @(v)ref_main_idx_1
vshrn.u16 d3,q1,#5 @idx = pos >> 5
and r9,lr,#0xff @(vii)
vst1.8 {d14},[r0],r3 @(ii)
vrshrn.i16 d22,q11,#5 @(iv)shift_res = vrshrn_n_u16(add_res, 5)
asr lr,lr,#8 @(viii)
vld1.8 {d12},[r12],r11 @(vi)ref_main_idx
vsub.u8 d30,d1,d31 @(v)32-fract(dup_const_32_fract)
add r10,r8,r9 @(vii)*pu1_ref[ref_main_idx]
vld1.8 {d13},[r12] @(vi)ref_main_idx_1
vmull.u8 q5,d8,d30 @(v)vmull_u8(ref_main_idx, dup_const_32_fract)
and r9,lr,#0xff @(viii)
vmov.u32 lr,d3[0] @(i)extract idx to the r register
vmlal.u8 q5,d9,d31 @(v)vmull_u8(ref_main_idx_1, dup_const_fract)
add r12,r8,r9 @(viii)*pu1_ref[ref_main_idx]
vld1.8 {d16},[r10],r11 @(vii)ref_main_idx
vsub.u8 d28,d1,d29 @(vi)32-fract(dup_const_32_fract)
vst1.8 {d18},[r0],r3 @(iii)
vmull.u8 q7,d12,d28 @(vi)vmull_u8(ref_main_idx, dup_const_32_fract)
movle r8,r1 @reload the source to pu1_src+2nt
vld1.8 {d17},[r10] @(vii)ref_main_idx_1
vmlal.u8 q7,d13,d29 @(vi)vmull_u8(ref_main_idx_1, dup_const_fract)
addgt r8,r8,#8 @increment the source next set 8 columns in same row
vld1.8 {d20},[r12],r11 @(viii)ref_main_idx
vrshrn.i16 d10,q5,#5 @(v)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d21},[r12] @(viii)ref_main_idx_1
vsub.u8 d26,d1,d27 @(vii)32-fract(dup_const_32_fract)
lslle r12,r3,#3
vst1.8 {d22},[r0],r3 @(iv)
vmull.u8 q9,d16,d26 @(vii)vmull_u8(ref_main_idx, dup_const_32_fract)
suble r12,r12,r5
vst1.8 {d10},[r0],r3 @(v)
vmlal.u8 q9,d17,d27 @(vii)vmull_u8(ref_main_idx_1, dup_const_fract)
addle r2,r2,r12 @increment the dst pointer to 8*dst_strd - nt
vmovn.i16 d4,q2
vrshrn.i16 d14,q7,#5 @(vi)shift_res = vrshrn_n_u16(add_res, 5)
lsl lr,lr,#1
and r9,lr,#0xff @(i)
subs r7,r7,#8
add r10,r8,r9 @(i)*pu1_ref[ref_main_idx]
bne kernel_8_rows
epilogue:
vst1.8 {d14},[r0],r3 @(vi)
vrshrn.i16 d18,q9,#5 @(vii)shift_res = vrshrn_n_u16(add_res, 5)
vsub.u8 d24,d1,d25 @(viii)32-fract(dup_const_32_fract)
vmull.u8 q11,d20,d24 @(viii)vmull_u8(ref_main_idx, dup_const_32_fract)
vmlal.u8 q11,d21,d25 @(viii)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d18},[r0],r3 @(vii)
vrshrn.i16 d22,q11,#5 @(viii)shift_res = vrshrn_n_u16(add_res, 5)
vst1.8 {d22},[r0],r3 @(viii)
b end_loops
core_loop_4:
add r10,r8,#2 @pu1_ref_main_idx += (four_nt + 1)
add r11,r8,#4 @pu1_ref_main_idx_1 += (four_nt + 2)
mov r8,#0
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
and r5,r5,#31 @fract = pos & (31)
cmp lr,r5 @if(fract_prev > fract)
addgt r10,r10,#2 @pu1_ref_main_idx += 2
add r11,r10,#2 @pu1_ref_main_idx_1 += 2
vdup.8 d0,r5 @dup_const_fract
rsb r4,r5,#32
vdup.8 d1,r4 @dup_const_32_fract
@inner_loop_4
vld1.8 {d2},[r10] @ref_main_idx
add r8,r8,#1
mov lr,r5 @fract_prev = fract
vld1.8 {d3},[r11] @ref_main_idx_1
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
and r5,r5,#31 @fract = pos & (31)
cmp lr,r5 @if(fract_prev > fract)
addgt r10,r10,#2 @pu1_ref_main_idx += 1
add r11,r10,#2 @pu1_ref_main_idx_1 += 1
vdup.8 d6,r5 @dup_const_fract
vmull.u8 q2,d2,d1 @vmull_u8(ref_main_idx, dup_const_32_fract)
rsb r4,r5,#32
vdup.8 d7,r4 @dup_const_32_fract
vmlal.u8 q2,d3,d0 @vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d8},[r10] @ref_main_idx
add r8,r8,#1
vld1.8 {d9},[r11] @ref_main_idx_1
vrshrn.i16 d4,q2,#5 @shift_res = vrshrn_n_u16(add_res, 5)
mov lr,r5 @fract_prev = fract
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
and r5,r5,#31 @fract = pos & (31)
cmp lr,r5 @if(fract_prev > fract)
addgt r10,r10,#2 @pu1_ref_main_idx += 1
add r11,r10,#2 @pu1_ref_main_idx_1 += 1
vdup.8 d12,r5 @dup_const_fract
vmull.u8 q5,d8,d7 @vmull_u8(ref_main_idx, dup_const_32_fract)
rsb r4,r5,#32
vdup.8 d13,r4 @dup_const_32_fract
vmlal.u8 q5,d9,d6 @vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d14},[r10] @ref_main_idx
add r8,r8,#1
vst1.8 {d4},[r2],r3
vrshrn.i16 d10,q5,#5 @shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d15},[r11] @ref_main_idx_1
mov lr,r5 @fract_prev = fract
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
and r5,r5,#31 @fract = pos & (31)
cmp lr,r5 @if(fract_prev > fract)
addgt r10,r10,#2 @pu1_ref_main_idx += 1
add r11,r10,#2 @pu1_ref_main_idx_1 += 1
vdup.8 d18,r5 @dup_const_fract
vmull.u8 q8,d14,d13 @vmull_u8(ref_main_idx, dup_const_32_fract)
rsb r4,r5,#32
vdup.8 d19,r4 @dup_const_32_fract
vmlal.u8 q8,d15,d12 @vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d20},[r10] @ref_main_idx
vst1.8 {d10},[r2],r3
vrshrn.i16 d16,q8,#5 @shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d21},[r11] @ref_main_idx_1
vmull.u8 q11,d20,d19 @vmull_u8(ref_main_idx, dup_const_32_fract)
vmlal.u8 q11,d21,d18 @vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d16},[r2],r3
vrshrn.i16 d22,q11,#5 @shift_res = vrshrn_n_u16(add_res, 5)
vst1.8 {d22},[r2],r3
end_loops:
ldmfd sp!,{r4-r12,r15} @reload the registers from sp
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