| //****************************************************************************** |
| //* |
| //* Copyright (C) 2015 The Android Open Source Project |
| //* |
| //* 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. |
| //* |
| //***************************************************************************** |
| //* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| //*/ |
| ///** |
| //****************************************************************************** |
| //* @file |
| //* ih264_intra_pred_luma_4x4_av8.s |
| //* |
| //* @brief |
| //* Contains function definitions for intra 4x4 Luma prediction . |
| //* |
| //* @author |
| //* Ittiam |
| //* |
| //* @par List of Functions: |
| //* |
| //* -ih264_intra_pred_luma_4x4_mode_vert_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_horz_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_dc_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_diag_dl_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_diag_dr_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_vert_r_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_horz_d_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_vert_l_av8 |
| //* -ih264_intra_pred_luma_4x4_mode_horz_u_av8 |
| //* |
| //* @remarks |
| //* None |
| //* |
| //******************************************************************************* |
| //*/ |
| |
| ///* All the functions here are replicated from ih264_intra_pred_filters.c |
| // |
| |
| ///** |
| ///** |
| ///** |
| // |
| |
| .text |
| .p2align 2 |
| .include "ih264_neon_macros.s" |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_vert |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:vertical |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:vertical ,described in sec 8.3.1.2.1 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels(Not used in this function) |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //******************************************************************************* |
| //void ih264_intra_pred_luma_4x4_mode_vert(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| .global ih264_intra_pred_luma_4x4_mode_vert_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_vert_av8: |
| |
| push_v_regs |
| |
| add x0, x0, #5 |
| |
| ld1 {v0.s}[0], [x0] |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| ///****************************************************************************** |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_horz |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:horizontal |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:horizontal ,described in sec 8.3.1.2.2 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels(Not used in this function) |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //******************************************************************************* |
| //*/ |
| //void ih264_intra_pred_luma_4x4_mode_horz(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_horz_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_horz_av8: |
| |
| push_v_regs |
| |
| ld1 {v1.s}[0], [x0] |
| dup v0.8b, v1.b[3] |
| dup v2.8b, v1.b[2] |
| st1 {v0.s}[0], [x1], x3 |
| dup v3.8b, v1.b[1] |
| st1 {v2.s}[0], [x1], x3 |
| dup v4.8b, v1.b[0] |
| st1 {v3.s}[0], [x1], x3 |
| st1 {v4.s}[0], [x1], x3 |
| |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| |
| |
| ///****************************************************************************** |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_dc |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:DC |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:DC ,described in sec 8.3.1.2.3 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_dc(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_dc_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_dc_av8: |
| |
| |
| |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| |
| ands x5, x4, #0x01 |
| beq top_available //LEFT NOT AVAILABLE |
| |
| add x10, x0, #3 |
| mov x2, #-1 |
| ldrb w5, [x10], #-1 |
| sxtw x5, w5 |
| ldrb w6, [x10], #-1 |
| sxtw x6, w6 |
| ldrb w7, [x10], #-1 |
| sxtw x7, w7 |
| add x5, x5, x6 |
| ldrb w8, [x10], #-1 |
| sxtw x8, w8 |
| add x5, x5, x7 |
| ands x11, x4, #0x04 // CHECKING IF TOP_AVAILABLE ELSE BRANCHING TO ONLY LEFT AVAILABLE |
| add x5, x5, x8 |
| beq left_available |
| add x10, x0, #5 |
| // BOTH LEFT AND TOP AVAILABLE |
| ldrb w6, [x10], #1 |
| sxtw x6, w6 |
| ldrb w7, [x10], #1 |
| sxtw x7, w7 |
| add x5, x5, x6 |
| ldrb w8, [x10], #1 |
| sxtw x8, w8 |
| add x5, x5, x7 |
| ldrb w9, [x10], #1 |
| sxtw x9, w9 |
| add x5, x5, x8 |
| add x5, x5, x9 |
| add x5, x5, #4 |
| lsr x5, x5, #3 |
| dup v0.8b, w5 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| b end_func |
| |
| top_available: // ONLT TOP AVAILABLE |
| ands x11, x4, #0x04 // CHECKING TOP AVAILABILTY OR ELSE BRANCH TO NONE AVAILABLE |
| beq none_available |
| |
| add x10, x0, #5 |
| ldrb w6, [x10], #1 |
| sxtw x6, w6 |
| ldrb w7, [x10], #1 |
| sxtw x7, w7 |
| ldrb w8, [x10], #1 |
| sxtw x8, w8 |
| add x5, x6, x7 |
| ldrb w9, [x10], #1 |
| sxtw x9, w9 |
| add x5, x5, x8 |
| add x5, x5, x9 |
| add x5, x5, #2 |
| lsr x5, x5, #2 |
| dup v0.8b, w5 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| b end_func |
| |
| left_available: //ONLY LEFT AVAILABLE |
| add x5, x5, #2 |
| lsr x5, x5, #2 |
| dup v0.8b, w5 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| b end_func |
| |
| none_available: //NONE AVAILABLE |
| mov x5, #128 |
| dup v0.8b, w5 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| st1 {v0.s}[0], [x1], x3 |
| b end_func |
| |
| |
| end_func: |
| |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_diag_dl |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:Diagonal_Down_Left |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:Diagonal_Down_Left ,described in sec 8.3.1.2.4 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_diag_dl(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_diag_dl_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_diag_dl_av8: |
| |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| |
| add x0, x0, #5 |
| sub x5, x3, #2 |
| add x6, x0, #7 |
| ld1 {v0.8b}, [x0] |
| ext v1.8b, v0.8b , v0.8b , #1 |
| ext v2.8b, v0.8b , v0.8b , #2 |
| ld1 {v2.b}[6], [x6] |
| uaddl v20.8h, v0.8b, v1.8b |
| uaddl v22.8h, v1.8b, v2.8b |
| add v24.8h, v20.8h , v22.8h |
| sqrshrun v3.8b, v24.8h, #2 |
| st1 {v3.s}[0], [x1], x3 |
| ext v4.8b, v3.8b , v3.8b , #1 |
| st1 {v4.s}[0], [x1], x3 |
| st1 {v3.h}[1], [x1], #2 |
| st1 {v3.h}[2], [x1], x5 |
| st1 {v4.h}[1], [x1], #2 |
| st1 {v4.h}[2], [x1] |
| |
| end_func_diag_dl: |
| |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_diag_dr |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:Diagonal_Down_Right |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:Diagonal_Down_Right ,described in sec 8.3.1.2.5 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_diag_dr(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_diag_dr_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_diag_dr_av8: |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| |
| |
| ld1 {v0.8b}, [x0] |
| add x0, x0, #1 |
| ld1 {v1.8b}, [x0] |
| ext v2.8b, v1.8b , v1.8b , #1 |
| uaddl v20.8h, v0.8b, v1.8b |
| uaddl v22.8h, v1.8b, v2.8b |
| add v24.8h, v20.8h , v22.8h |
| sqrshrun v3.8b, v24.8h, #2 |
| |
| ext v4.8b, v3.8b , v3.8b , #1 |
| sub x5, x3, #2 |
| st1 {v4.h}[1], [x1], #2 |
| st1 {v4.h}[2], [x1], x5 |
| st1 {v3.h}[1], [x1], #2 |
| st1 {v3.h}[2], [x1], x5 |
| st1 {v4.s}[0], [x1], x3 |
| st1 {v3.s}[0], [x1], x3 |
| |
| end_func_diag_dr: |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_vert_r |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:Vertical_Right |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:Vertical_Right ,described in sec 8.3.1.2.6 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_vert_r(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_vert_r_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_vert_r_av8: |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| |
| |
| ld1 {v0.8b}, [x0] |
| add x0, x0, #1 |
| ld1 {v1.8b}, [x0] |
| ext v2.8b, v1.8b , v1.8b , #1 |
| uaddl v20.8h, v0.8b, v1.8b |
| uaddl v22.8h, v1.8b, v2.8b |
| add v24.8h, v20.8h , v22.8h |
| sqrshrun v4.8b, v20.8h, #1 |
| sqrshrun v3.8b, v24.8h, #2 |
| sub x5, x3, #2 |
| ext v5.8b, v3.8b , v3.8b , #3 |
| st1 {v4.s}[1], [x1], x3 |
| st1 {v5.s}[0], [x1], x3 |
| sub x8, x3, #3 |
| st1 {v3.b}[2], [x1], #1 |
| st1 {v4.h}[2], [x1], #2 |
| st1 {v4.b}[6], [x1], x8 |
| st1 {v3.b}[1], [x1], #1 |
| st1 {v5.h}[0], [x1], #2 |
| st1 {v5.b}[2], [x1] |
| |
| |
| end_func_vert_r: |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_horz_d |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:Horizontal_Down |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:Horizontal_Down ,described in sec 8.3.1.2.7 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_horz_d(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_horz_d_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_horz_d_av8: |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| |
| ld1 {v0.8b}, [x0] |
| add x0, x0, #1 |
| ld1 {v1.8b}, [x0] |
| ext v2.8b, v1.8b , v0.8b , #1 |
| uaddl v20.8h, v0.8b, v1.8b |
| uaddl v22.8h, v1.8b, v2.8b |
| add v24.8h, v20.8h , v22.8h |
| sqrshrun v4.8b, v20.8h, #1 |
| sqrshrun v5.8b, v24.8h, #2 |
| sub x5, x3, #2 |
| mov v6.8b, v5.8b |
| trn1 v10.8b, v4.8b, v5.8b |
| trn2 v5.8b, v4.8b, v5.8b // |
| mov v4.8b, v10.8b |
| st1 {v5.h}[1], [x1], #2 |
| st1 {v6.h}[2], [x1], x5 |
| st1 {v4.h}[1], [x1], #2 |
| st1 {v5.h}[1], [x1], x5 |
| st1 {v5.h}[0], [x1], #2 |
| st1 {v4.h}[1], [x1], x5 |
| st1 {v4.h}[0], [x1], #2 |
| st1 {v5.h}[0], [x1], x5 |
| |
| end_func_horz_d: |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_vert_l |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:Vertical_Left |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:Vertical_Left ,described in sec 8.3.1.2.8 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_vert_l(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_vert_l_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_vert_l_av8: |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| add x0, x0, #4 |
| ld1 {v0.8b}, [x0] |
| add x0, x0, #1 |
| ld1 {v1.8b}, [x0] |
| ext v2.8b, v1.8b , v0.8b , #1 |
| uaddl v20.8h, v0.8b, v1.8b |
| uaddl v22.8h, v1.8b, v2.8b |
| add v24.8h, v20.8h , v22.8h |
| sqrshrun v4.8b, v20.8h, #1 |
| sqrshrun v5.8b, v24.8h, #2 |
| ext v6.8b, v4.8b , v4.8b , #1 |
| ext v7.8b, v5.8b , v5.8b , #1 |
| st1 {v6.s}[0], [x1], x3 |
| ext v8.8b, v4.8b , v4.8b , #2 |
| ext v9.8b, v5.8b , v5.8b , #2 |
| st1 {v7.s}[0], [x1], x3 |
| st1 {v8.s}[0], [x1], x3 |
| st1 {v9.s}[0], [x1], x3 |
| |
| end_func_vert_l: |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
| |
| |
| |
| |
| ///** |
| //******************************************************************************* |
| //* |
| //*ih264_intra_pred_luma_4x4_mode_horz_u |
| //* |
| //* @brief |
| //* Perform Intra prediction for luma_4x4 mode:Horizontal_Up |
| //* |
| //* @par Description: |
| //* Perform Intra prediction for luma_4x4 mode:Horizontal_Up ,described in sec 8.3.1.2.9 |
| //* |
| //* @param[in] pu1_src |
| //* UWORD8 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] ui_neighboravailability |
| //* availability of neighbouring pixels |
| //* |
| //* @returns |
| //* |
| //* @remarks |
| //* None |
| //* |
| //*******************************************************************************/ |
| //void ih264_intra_pred_luma_4x4_mode_horz_u(UWORD8 *pu1_src, |
| // UWORD8 *pu1_dst, |
| // WORD32 src_strd, |
| // WORD32 dst_strd, |
| // WORD32 ui_neighboravailability) |
| |
| //**************Variables Vs Registers***************************************** |
| // x0 => *pu1_src |
| // x1 => *pu1_dst |
| // x2 => src_strd |
| // x3 => dst_strd |
| // x4 => ui_neighboravailability |
| |
| |
| .global ih264_intra_pred_luma_4x4_mode_horz_u_av8 |
| |
| ih264_intra_pred_luma_4x4_mode_horz_u_av8: |
| |
| push_v_regs |
| stp x19, x20, [sp, #-16]! |
| mov x10, x0 |
| ld1 {v0.8b}, [x0] |
| ldrb w9, [x0], #1 |
| sxtw x9, w9 |
| ext v1.8b, v0.8b , v0.8b , #1 |
| ld1 {v0.b}[7], [x10] |
| ext v2.8b, v1.8b , v1.8b , #1 |
| uaddl v20.8h, v0.8b, v1.8b |
| uaddl v22.8h, v1.8b, v2.8b |
| add v24.8h, v20.8h , v22.8h |
| sqrshrun v4.8b, v20.8h, #1 |
| sqrshrun v5.8b, v24.8h, #2 |
| mov v6.8b, v4.8b |
| ext v6.8b, v5.8b , v4.8b , #1 |
| st1 {v4.b}[2], [x1], #1 |
| st1 {v6.b}[0], [x1], #1 |
| trn1 v10.8b, v6.8b, v5.8b |
| trn2 v5.8b, v6.8b, v5.8b // |
| mov v6.8b , v10.8b |
| sub x5, x3, #2 |
| trn1 v10.8b, v4.8b, v6.8b |
| trn2 v6.8b, v4.8b, v6.8b // |
| mov v4.8b , v10.8b |
| dup v7.8b, w9 |
| st1 {v6.h}[0], [x1], x5 |
| st1 {v6.h}[0], [x1], #2 |
| st1 {v5.h}[3], [x1], x5 |
| st1 {v5.h}[3], [x1], #2 |
| st1 {v7.h}[3], [x1], x5 |
| st1 {v7.s}[0], [x1], x3 |
| |
| end_func_horz_u: |
| ldp x19, x20, [sp], #16 |
| pop_v_regs |
| ret |
| |
| |
| |
