| @/***************************************************************************** |
| @* |
| @* 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_inter_pred_filters_luma_vert_w16inp.s |
| @* |
| @* @brief |
| @* contains function definitions for inter prediction interpolation. |
| @* functions are coded using neon intrinsics and can be compiled using |
| |
| @* rvct |
| @* |
| @* @author |
| @* yogeswaran rs |
| @* |
| @* @par list of functions: |
| @* |
| @* - ihevc_inter_pred_luma_vert() |
| @* |
| @* @remarks |
| @* none |
| @* |
| @******************************************************************************* |
| @*/ |
| |
| @/* all the functions here are replicated from ihevc_inter_pred_filters.c and modified to */ |
| @/* include reconstruction */ |
| @ |
| |
| @/** |
| @******************************************************************************* |
| @* |
| @* @brief |
| @* luma vertical filter for 16bit input. |
| @* |
| @* @par description: |
| @* applies a vertical filter with coefficients pointed to by 'pi1_coeff' to |
| @* the elements pointed by 'pu1_src' and writes to the location pointed by |
| @* 'pu1_dst' input is 16 bits the filter output is downshifted by 12 and |
| @* clipped to lie between 0 and 255 assumptions : the function is |
| @* optimized considering the fact width is multiple of 4. and height as |
| @* multiple of 2. |
| @* |
| @* @param[in] pi2_src |
| @* word16 pointer to the source |
| @* |
| @* @param[out] pu1_dst |
| @* uword8 pointer to the destination |
| @* |
| @* @param[in] src_strd |
| @* integer source stride |
| @* |
| @* @param[in] dst_strd |
| @* integer destination stride |
| @* |
| @* @param[in] pi1_coeff |
| @* word8 pointer to the filter coefficients |
| @* |
| @* @param[in] ht |
| @* integer height of the array |
| @* |
| @* @param[in] wd |
| @* integer width of the array |
| @* |
| @* @returns |
| @* |
| @* @remarks |
| @* none |
| @* |
| @******************************************************************************* |
| @*/ |
| |
| @void ihevc_inter_pred_luma_vert_w16inp(word16 *pi2_src, |
| @ uword8 *pu1_dst, |
| @ word32 src_strd, |
| @ word32 dst_strd, |
| @ word8 *pi1_coeff, |
| @ word32 ht, |
| @ word32 wd ) |
| @**************variables vs registers***************************************** |
| @ r0 => *pu2_src |
| @ r1 => *pu1_dst |
| @ r2 => src_strd |
| @ r3 => dst_strd |
| @ r4 => *pi1_coeff |
| @ r5 => ht |
| @ r6 => wd |
| |
| .text |
| .align 4 |
| |
| |
| |
| |
| .globl ihevc_inter_pred_luma_vert_w16inp_w16out_a9q |
| |
| .type ihevc_inter_pred_luma_vert_w16inp_w16out_a9q, %function |
| |
| ihevc_inter_pred_luma_vert_w16inp_w16out_a9q: |
| |
| stmfd sp!, {r4-r12, r14} @stack stores the values of the arguments |
| |
| ldr r12,[sp,#40] @load pi1_coeff |
| mov r6,r3,lsl #1 |
| ldr r5,[sp,#48] @load wd |
| vld1.8 {d0},[r12] @coeff = vld1_s8(pi1_coeff) |
| mov r2, r2, lsl #1 |
| sub r12,r2,r2,lsl #2 @src_ctrd & pi1_coeff |
| @vabs.s8 d0,d0 @vabs_s8(coeff) |
| add r0,r0,r12 @r0->pu1_src r12->pi1_coeff |
| ldr r3,[sp,#44] @load ht |
| subs r7,r3,#0 @r3->ht |
| @ble end_loops @end loop jump |
| vmovl.s8 q0,d0 |
| vdup.16 d22,d0[0] @coeffabs_0 = vdup_lane_u8(coeffabs, 0)@ |
| vdup.16 d23,d0[1] @coeffabs_1 = vdup_lane_u8(coeffabs, 1)@ |
| vdup.16 d24,d0[2] @coeffabs_2 = vdup_lane_u8(coeffabs, 2)@ |
| vdup.16 d25,d0[3] @coeffabs_3 = vdup_lane_u8(coeffabs, 3)@ |
| vdup.16 d26,d1[0] @coeffabs_4 = vdup_lane_u8(coeffabs, 4)@ |
| vdup.16 d27,d1[1] @coeffabs_5 = vdup_lane_u8(coeffabs, 5)@ |
| vdup.16 d28,d1[2] @coeffabs_6 = vdup_lane_u8(coeffabs, 6)@ |
| vdup.16 d29,d1[3] @coeffabs_7 = vdup_lane_u8(coeffabs, 7)@ |
| vmov.i32 q15,#0x80000 |
| |
| rsb r9,r5,r6,lsl #2 @r6->dst_strd r5 ->wd |
| rsb r8,r5,r2,lsl #2 @r2->src_strd |
| sub r8,r8,r5 |
| sub r9,r9,r5 |
| mov r3, r5, lsr #2 @divide by 4 |
| mul r7, r3 @multiply height by width |
| sub r7, #4 @subtract by one for epilog |
| mov r4,r5 @r5 ->wd |
| @mov r2, r2, lsl #1 |
| |
| prolog: |
| |
| add r3,r0,r2 @pu1_src_tmp += src_strd@ |
| vld1.16 {d1},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| vld1.16 {d0},[r0]! @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| subs r4,r4,#4 |
| vld1.16 {d2},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmull.s16 q4,d1,d23 @mul_res1 = vmull_u8(src_tmp2, coeffabs_1)@ |
| vld1.16 {d3},[r3],r2 @src_tmp4 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q4,d0,d22 @mul_res1 = vmlal_u8(mul_res1, src_tmp1, coeffabs_0)@ |
| vld1.16 {d4},[r3],r2 @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q4,d2,d24 @mul_res1 = vmlal_u8(mul_res1, src_tmp3, coeffabs_2)@ |
| vld1.16 {d5},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q4,d3,d25 @mul_res1 = vmlal_u8(mul_res1, src_tmp4, coeffabs_3)@ |
| vld1.16 {d6},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q4,d4,d26 @mul_res1 = vmlal_u8(mul_res1, src_tmp1, coeffabs_4)@ |
| vld1.16 {d7},[r3],r2 @src_tmp4 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q4,d5,d27 @mul_res1 = vmlal_u8(mul_res1, src_tmp2, coeffabs_5)@ |
| vmlal.s16 q4,d6,d28 @mul_res1 = vmlal_u8(mul_res1, src_tmp3, coeffabs_6)@ |
| vmlal.s16 q4,d7,d29 @mul_res1 = vmlal_u8(mul_res1, src_tmp4, coeffabs_7)@ |
| |
| vld1.16 {d16},[r3],r2 @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| |
| vmull.s16 q5,d2,d23 @mul_res2 = vmull_u8(src_tmp3, coeffabs_1)@ |
| addle r0,r0,r8,lsl #0 |
| vmlal.s16 q5,d1,d22 @mul_res2 = vmlal_u8(mul_res2, src_tmp2, coeffabs_0)@ |
| movle r4,r5 @r5 ->wd |
| vmlal.s16 q5,d3,d24 @mul_res2 = vmlal_u8(mul_res2, src_tmp4, coeffabs_2)@ |
| vld1.16 {d17},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q5,d4,d25 @mul_res2 = vmlal_u8(mul_res2, src_tmp1, coeffabs_3)@ |
| vld1.16 {d18},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q5,d5,d26 @mul_res2 = vmlal_u8(mul_res2, src_tmp2, coeffabs_4)@ |
| add r3,r0,r2 @pu1_src_tmp += src_strd@ |
| vmlal.s16 q5,d6,d27 @mul_res2 = vmlal_u8(mul_res2, src_tmp3, coeffabs_5)@ |
| vmlal.s16 q5,d7,d28 @mul_res2 = vmlal_u8(mul_res2, src_tmp4, coeffabs_6)@ |
| vmlal.s16 q5,d16,d29 @mul_res2 = vmlal_u8(mul_res2, src_tmp1, coeffabs_7)@ |
| vsub.s32 q4, q4, q15 |
| |
| vld1.16 {d1},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmull.s16 q6,d3,d23 |
| vld1.16 {d0},[r0]! @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q6,d2,d22 |
| vld1.16 {d2},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q6,d4,d24 |
| vmlal.s16 q6,d5,d25 |
| vmlal.s16 q6,d6,d26 |
| vmlal.s16 q6,d7,d27 |
| vmlal.s16 q6,d16,d28 |
| vmlal.s16 q6,d17,d29 |
| add r14,r1,r6 |
| vsub.s32 q5, q5, q15 |
| vshrn.s32 d8, q4, #6 |
| @vqrshrun.s16 d8,q4,#6 @sto_res = vqmovun_s16(sto_res_tmp)@ |
| |
| vmull.s16 q7,d4,d23 |
| vmlal.s16 q7,d3,d22 |
| vmlal.s16 q7,d5,d24 |
| vmlal.s16 q7,d6,d25 |
| vld1.16 {d3},[r3],r2 @src_tmp4 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d7,d26 |
| vld1.16 {d4},[r3],r2 @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d16,d27 |
| vld1.16 {d5},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d17,d28 |
| vld1.16 {d6},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d18,d29 |
| vld1.16 {d7},[r3],r2 @src_tmp4 = vld1_u8(pu1_src_tmp)@ |
| |
| vst1.32 {d8},[r1]! @vst1_u8(pu1_dst,sto_res)@ |
| vsub.s32 q6, q6, q15 |
| vshrn.s32 d10, q5, #6 |
| @vqrshrun.s16 d10,q5,#6 @sto_res = vqmovun_s16(sto_res_tmp)@ |
| addle r1,r1,r9 |
| |
| subs r7,r7,#4 |
| |
| |
| blt epilog_end @jumps to epilog_end |
| beq epilog @jumps to epilog |
| |
| kernel_8: |
| |
| vmull.s16 q4,d1,d23 @mul_res1 = vmull_u8(src_tmp2, coeffabs_1)@ |
| subs r4,r4,#4 |
| vmlal.s16 q4,d0,d22 @mul_res1 = vmlal_u8(mul_res1, src_tmp1, coeffabs_0)@ |
| addle r0,r0,r8,lsl #0 |
| vmlal.s16 q4,d2,d24 @mul_res1 = vmlal_u8(mul_res1, src_tmp3, coeffabs_2)@ |
| vmlal.s16 q4,d3,d25 @mul_res1 = vmlal_u8(mul_res1, src_tmp4, coeffabs_3)@ |
| vmlal.s16 q4,d4,d26 @mul_res1 = vmlal_u8(mul_res1, src_tmp1, coeffabs_4)@ |
| vmlal.s16 q4,d5,d27 @mul_res1 = vmlal_u8(mul_res1, src_tmp2, coeffabs_5)@ |
| vmlal.s16 q4,d6,d28 @mul_res1 = vmlal_u8(mul_res1, src_tmp3, coeffabs_6)@ |
| vmlal.s16 q4,d7,d29 @mul_res1 = vmlal_u8(mul_res1, src_tmp4, coeffabs_7)@ |
| vst1.32 {d10},[r14],r6 @vst1_u8(pu1_dst_tmp,sto_res)@ |
| |
| vsub.s32 q7, q7, q15 |
| vshrn.s32 d12, q6, #6 |
| @vqrshrun.s16 d12,q6,#6 |
| vld1.16 {d16},[r3],r2 @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| |
| vmull.s16 q5,d2,d23 @mul_res2 = vmull_u8(src_tmp3, coeffabs_1)@ |
| vmlal.s16 q5,d1,d22 @mul_res2 = vmlal_u8(mul_res2, src_tmp2, coeffabs_0)@ |
| vmlal.s16 q5,d3,d24 @mul_res2 = vmlal_u8(mul_res2, src_tmp4, coeffabs_2)@ |
| vmlal.s16 q5,d4,d25 @mul_res2 = vmlal_u8(mul_res2, src_tmp1, coeffabs_3)@ |
| vmlal.s16 q5,d5,d26 @mul_res2 = vmlal_u8(mul_res2, src_tmp2, coeffabs_4)@ |
| vmlal.s16 q5,d6,d27 @mul_res2 = vmlal_u8(mul_res2, src_tmp3, coeffabs_5)@ |
| vst1.32 {d12},[r14],r6 |
| |
| vmlal.s16 q5,d7,d28 @mul_res2 = vmlal_u8(mul_res2, src_tmp4, coeffabs_6)@ |
| vld1.16 {d17},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| |
| vmlal.s16 q5,d16,d29 @mul_res2 = vmlal_u8(mul_res2, src_tmp1, coeffabs_7)@ |
| |
| vsub.s32 q4, q4, q15 |
| vshrn.s32 d14, q7, #6 |
| @vqrshrun.s16 d14,q7,#6 |
| |
| vmull.s16 q6,d3,d23 |
| movle r4,r5 @r5 ->wd |
| |
| vmlal.s16 q6,d2,d22 |
| vld1.16 {d18},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| |
| vmlal.s16 q6,d4,d24 |
| add r3,r0,r2 @pu1_src_tmp += src_strd@ |
| |
| vmlal.s16 q6,d5,d25 |
| |
| vmlal.s16 q6,d6,d26 |
| vst1.32 {d14},[r14],r6 |
| |
| vmlal.s16 q6,d7,d27 |
| vld1.16 {d1},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| |
| vmlal.s16 q6,d16,d28 |
| add r14,r1,r6 |
| |
| vmlal.s16 q6,d17,d29 |
| vld1.16 {d0},[r0]! @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| |
| vsub.s32 q5, q5, q15 |
| vshrn.s32 d8, q4, #6 |
| @vqrshrun.s16 d8,q4,#6 @sto_res = vqmovun_s16(sto_res_tmp)@ |
| vld1.16 {d2},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| |
| vmull.s16 q7,d4,d23 |
| vmlal.s16 q7,d3,d22 |
| vmlal.s16 q7,d5,d24 |
| vld1.16 {d3},[r3],r2 @src_tmp4 = vld1_u8(pu1_src_tmp)@ |
| |
| vmlal.s16 q7,d6,d25 |
| vld1.16 {d4},[r3],r2 @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d7,d26 |
| vld1.16 {d5},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d16,d27 |
| vld1.16 {d6},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d17,d28 |
| vld1.16 {d7},[r3],r2 @src_tmp4 = vld1_u8(pu1_src_tmp)@ |
| vmlal.s16 q7,d18,d29 |
| vst1.32 {d8},[r1]! @vst1_u8(pu1_dst,sto_res)@ |
| |
| vsub.s32 q6, q6, q15 |
| vshrn.s32 d10, q5, #6 |
| addle r1,r1,r9 |
| |
| @vqrshrun.s16 d10,q5,#6 @sto_res = vqmovun_s16(sto_res_tmp)@ |
| subs r7,r7,#4 |
| |
| bgt kernel_8 @jumps to kernel_8 |
| |
| epilog: |
| |
| vmull.s16 q4,d1,d23 @mul_res1 = vmull_u8(src_tmp2, coeffabs_1)@ |
| vmlal.s16 q4,d0,d22 @mul_res1 = vmlal_u8(mul_res1, src_tmp1, coeffabs_0)@ |
| vmlal.s16 q4,d2,d24 @mul_res1 = vmlal_u8(mul_res1, src_tmp3, coeffabs_2)@ |
| vmlal.s16 q4,d3,d25 @mul_res1 = vmlal_u8(mul_res1, src_tmp4, coeffabs_3)@ |
| vmlal.s16 q4,d4,d26 @mul_res1 = vmlal_u8(mul_res1, src_tmp1, coeffabs_4)@ |
| vmlal.s16 q4,d5,d27 @mul_res1 = vmlal_u8(mul_res1, src_tmp2, coeffabs_5)@ |
| vmlal.s16 q4,d6,d28 @mul_res1 = vmlal_u8(mul_res1, src_tmp3, coeffabs_6)@ |
| vmlal.s16 q4,d7,d29 @mul_res1 = vmlal_u8(mul_res1, src_tmp4, coeffabs_7)@ |
| vst1.32 {d10},[r14],r6 |
| |
| vsub.s32 q7, q7, q15 |
| vshrn.s32 d12, q6, #6 |
| @vqrshrun.s16 d12,q6,#6 |
| |
| vld1.16 {d16},[r3],r2 @src_tmp1 = vld1_u8(pu1_src_tmp)@ |
| vmull.s16 q5,d2,d23 @mul_res2 = vmull_u8(src_tmp3, coeffabs_1)@ |
| vmlal.s16 q5,d1,d22 @mul_res2 = vmlal_u8(mul_res2, src_tmp2, coeffabs_0)@ |
| vmlal.s16 q5,d3,d24 @mul_res2 = vmlal_u8(mul_res2, src_tmp4, coeffabs_2)@ |
| vmlal.s16 q5,d4,d25 @mul_res2 = vmlal_u8(mul_res2, src_tmp1, coeffabs_3)@ |
| vmlal.s16 q5,d5,d26 @mul_res2 = vmlal_u8(mul_res2, src_tmp2, coeffabs_4)@ |
| vmlal.s16 q5,d6,d27 @mul_res2 = vmlal_u8(mul_res2, src_tmp3, coeffabs_5)@ |
| vmlal.s16 q5,d7,d28 @mul_res2 = vmlal_u8(mul_res2, src_tmp4, coeffabs_6)@ |
| vmlal.s16 q5,d16,d29 @mul_res2 = vmlal_u8(mul_res2, src_tmp1, coeffabs_7)@ |
| vst1.32 {d12},[r14],r6 |
| |
| vsub.s32 q4, q4, q15 |
| vshrn.s32 d14, q7, #6 |
| @vqrshrun.s16 d14,q7,#6 |
| |
| vld1.16 {d17},[r3],r2 @src_tmp2 = vld1_u8(pu1_src_tmp)@ |
| vmull.s16 q6,d3,d23 |
| vmlal.s16 q6,d2,d22 |
| vmlal.s16 q6,d4,d24 |
| vmlal.s16 q6,d5,d25 |
| vmlal.s16 q6,d6,d26 |
| vmlal.s16 q6,d7,d27 |
| vmlal.s16 q6,d16,d28 |
| vmlal.s16 q6,d17,d29 |
| vst1.32 {d14},[r14],r6 |
| vsub.s32 q5, q5, q15 |
| vshrn.s32 d8, q4, #6 |
| @vqrshrun.s16 d8,q4,#6 @sto_res = vqmovun_s16(sto_res_tmp)@ |
| |
| vld1.16 {d18},[r3],r2 @src_tmp3 = vld1_u8(pu1_src_tmp)@ |
| vmull.s16 q7,d4,d23 |
| vmlal.s16 q7,d3,d22 |
| vmlal.s16 q7,d5,d24 |
| vmlal.s16 q7,d6,d25 |
| vmlal.s16 q7,d7,d26 |
| vmlal.s16 q7,d16,d27 |
| vmlal.s16 q7,d17,d28 |
| vmlal.s16 q7,d18,d29 |
| vsub.s32 q6, q6, q15 |
| vshrn.s32 d10, q5, #6 |
| @vqrshrun.s16 d10,q5,#6 @sto_res = vqmovun_s16(sto_res_tmp)@ |
| |
| add r14,r1,r6 |
| vst1.32 {d8},[r1]! @vst1_u8(pu1_dst,sto_res)@ |
| |
| epilog_end: |
| vst1.32 {d10},[r14],r6 @vst1_u8(pu1_dst_tmp,sto_res)@ |
| vshrn.s32 d12, q6, #6 |
| @vqrshrun.s16 d12,q6,#6 |
| |
| vst1.32 {d12},[r14],r6 |
| vsub.s32 q7, q7, q15 |
| vshrn.s32 d14, q7, #6 |
| @vqrshrun.s16 d14,q7,#6 |
| |
| vst1.32 {d14},[r14],r6 |
| |
| |
| end_loops: |
| |
| ldmfd sp!,{r4-r12,r15} @reload the registers from sp |
| |
| |
| |
| |
| |
| |
| |
| |
