mirror of https://git.ffmpeg.org/ffmpeg.git
409 lines
16 KiB
ArmAsm
409 lines
16 KiB
ArmAsm
/*
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* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
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* Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/aarch64/asm.S"
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#include "neon.S"
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function ff_h264_idct_add_neon, export=1
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ld1 {v0.4H, v1.4H, v2.4H, v3.4H}, [x1]
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sxtw x2, w2
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movi v30.8H, #0
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add v4.4H, v0.4H, v2.4H
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sshr v16.4H, v1.4H, #1
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st1 {v30.8H}, [x1], #16
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sshr v17.4H, v3.4H, #1
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st1 {v30.8H}, [x1], #16
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sub v5.4H, v0.4H, v2.4H
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add v6.4H, v1.4H, v17.4H
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sub v7.4H, v16.4H, v3.4H
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add v0.4H, v4.4H, v6.4H
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add v1.4H, v5.4H, v7.4H
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sub v3.4H, v4.4H, v6.4H
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sub v2.4H, v5.4H, v7.4H
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transpose_4x4H v0, v1, v2, v3, v4, v5, v6, v7
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add v4.4H, v0.4H, v3.4H
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ld1 {v18.S}[0], [x0], x2
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sshr v16.4H, v2.4H, #1
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sshr v17.4H, v1.4H, #1
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ld1 {v19.S}[1], [x0], x2
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sub v5.4H, v0.4H, v3.4H
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ld1 {v18.S}[1], [x0], x2
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add v6.4H, v16.4H, v1.4H
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ins v4.D[1], v5.D[0]
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sub v7.4H, v2.4H, v17.4H
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ld1 {v19.S}[0], [x0], x2
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ins v6.D[1], v7.D[0]
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sub x0, x0, x2, lsl #2
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add v0.8H, v4.8H, v6.8H
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sub v1.8H, v4.8H, v6.8H
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srshr v0.8H, v0.8H, #6
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srshr v1.8H, v1.8H, #6
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uaddw v0.8H, v0.8H, v18.8B
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uaddw v1.8H, v1.8H, v19.8B
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sqxtun v0.8B, v0.8H
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sqxtun v1.8B, v1.8H
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st1 {v0.S}[0], [x0], x2
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st1 {v1.S}[1], [x0], x2
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st1 {v0.S}[1], [x0], x2
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st1 {v1.S}[0], [x0], x2
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sub x1, x1, #32
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ret
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endfunc
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function ff_h264_idct_dc_add_neon, export=1
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sxtw x2, w2
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mov w3, #0
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ld1r {v2.8H}, [x1]
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strh w3, [x1]
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srshr v2.8H, v2.8H, #6
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ld1 {v0.S}[0], [x0], x2
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ld1 {v0.S}[1], [x0], x2
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uaddw v3.8H, v2.8H, v0.8B
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ld1 {v1.S}[0], [x0], x2
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ld1 {v1.S}[1], [x0], x2
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uaddw v4.8H, v2.8H, v1.8B
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sqxtun v0.8B, v3.8H
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sqxtun v1.8B, v4.8H
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sub x0, x0, x2, lsl #2
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st1 {v0.S}[0], [x0], x2
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st1 {v0.S}[1], [x0], x2
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st1 {v1.S}[0], [x0], x2
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st1 {v1.S}[1], [x0], x2
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ret
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endfunc
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function ff_h264_idct_add16_neon, export=1
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mov x12, x30
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mov x6, x0 // dest
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mov x5, x1 // block_offset
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mov x1, x2 // block
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mov w9, w3 // stride
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movrel x7, scan8
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mov x10, #16
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movrel x13, X(ff_h264_idct_dc_add_neon)
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movrel x14, X(ff_h264_idct_add_neon)
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1: mov w2, w9
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ldrb w3, [x7], #1
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ldrsw x0, [x5], #4
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ldrb w3, [x4, w3, uxtw]
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subs w3, w3, #1
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b.lt 2f
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ldrsh w3, [x1]
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add x0, x0, x6
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ccmp w3, #0, #4, eq
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csel x15, x13, x14, ne
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blr x15
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2: subs x10, x10, #1
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add x1, x1, #32
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b.ne 1b
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ret x12
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endfunc
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function ff_h264_idct_add16intra_neon, export=1
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mov x12, x30
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mov x6, x0 // dest
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mov x5, x1 // block_offset
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mov x1, x2 // block
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mov w9, w3 // stride
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movrel x7, scan8
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mov x10, #16
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movrel x13, X(ff_h264_idct_dc_add_neon)
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movrel x14, X(ff_h264_idct_add_neon)
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1: mov w2, w9
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ldrb w3, [x7], #1
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ldrsw x0, [x5], #4
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ldrb w3, [x4, w3, uxtw]
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add x0, x0, x6
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cmp w3, #0
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ldrsh w3, [x1]
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csel x15, x13, x14, eq
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ccmp w3, #0, #0, eq
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b.eq 2f
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blr x15
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2: subs x10, x10, #1
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add x1, x1, #32
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b.ne 1b
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ret x12
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endfunc
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function ff_h264_idct_add8_neon, export=1
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sub sp, sp, #0x40
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stp x19, x20, [sp]
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mov x12, x30
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ldp x6, x15, [x0] // dest[0], dest[1]
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add x5, x1, #16*4 // block_offset
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add x9, x2, #16*32 // block
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mov w19, w3 // stride
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movrel x13, X(ff_h264_idct_dc_add_neon)
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movrel x14, X(ff_h264_idct_add_neon)
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movrel x7, scan8+16
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mov x10, #0
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mov x11, #16
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1: mov w2, w19
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ldrb w3, [x7, x10] // scan8[i]
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ldrsw x0, [x5, x10, lsl #2] // block_offset[i]
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ldrb w3, [x4, w3, uxtw] // nnzc[ scan8[i] ]
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add x0, x0, x6 // block_offset[i] + dst[j-1]
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add x1, x9, x10, lsl #5 // block + i * 16
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cmp w3, #0
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ldrsh w3, [x1] // block[i*16]
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csel x20, x13, x14, eq
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ccmp w3, #0, #0, eq
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b.eq 2f
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blr x20
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2: add x10, x10, #1
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cmp x10, #4
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csel x10, x11, x10, eq // mov x10, #16
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csel x6, x15, x6, eq
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cmp x10, #20
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b.lt 1b
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ldp x19, x20, [sp]
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add sp, sp, #0x40
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ret x12
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endfunc
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.macro idct8x8_cols pass
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.if \pass == 0
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va .req v18
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vb .req v30
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sshr v18.8H, v26.8H, #1
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add v16.8H, v24.8H, v28.8H
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ld1 {v30.8H, v31.8H}, [x1]
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st1 {v19.8H}, [x1], #16
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st1 {v19.8H}, [x1], #16
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sub v17.8H, v24.8H, v28.8H
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sshr v19.8H, v30.8H, #1
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sub v18.8H, v18.8H, v30.8H
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add v19.8H, v19.8H, v26.8H
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.else
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va .req v30
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vb .req v18
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sshr v30.8H, v26.8H, #1
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sshr v19.8H, v18.8H, #1
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add v16.8H, v24.8H, v28.8H
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sub v17.8H, v24.8H, v28.8H
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sub v30.8H, v30.8H, v18.8H
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add v19.8H, v19.8H, v26.8H
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.endif
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add v26.8H, v17.8H, va.8H
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sub v28.8H, v17.8H, va.8H
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add v24.8H, v16.8H, v19.8H
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sub vb.8H, v16.8H, v19.8H
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sub v16.8H, v29.8H, v27.8H
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add v17.8H, v31.8H, v25.8H
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sub va.8H, v31.8H, v25.8H
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add v19.8H, v29.8H, v27.8H
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sub v16.8H, v16.8H, v31.8H
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sub v17.8H, v17.8H, v27.8H
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add va.8H, va.8H, v29.8H
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add v19.8H, v19.8H, v25.8H
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sshr v25.8H, v25.8H, #1
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sshr v27.8H, v27.8H, #1
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sshr v29.8H, v29.8H, #1
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sshr v31.8H, v31.8H, #1
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sub v16.8H, v16.8H, v31.8H
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sub v17.8H, v17.8H, v27.8H
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add va.8H, va.8H, v29.8H
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add v19.8H, v19.8H, v25.8H
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sshr v25.8H, v16.8H, #2
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sshr v27.8H, v17.8H, #2
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sshr v29.8H, va.8H, #2
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sshr v31.8H, v19.8H, #2
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sub v19.8H, v19.8H, v25.8H
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sub va.8H, v27.8H, va.8H
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add v17.8H, v17.8H, v29.8H
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add v16.8H, v16.8H, v31.8H
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.if \pass == 0
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sub v31.8H, v24.8H, v19.8H
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add v24.8H, v24.8H, v19.8H
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add v25.8H, v26.8H, v18.8H
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sub v18.8H, v26.8H, v18.8H
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add v26.8H, v28.8H, v17.8H
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add v27.8H, v30.8H, v16.8H
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sub v29.8H, v28.8H, v17.8H
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sub v28.8H, v30.8H, v16.8H
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.else
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sub v31.8H, v24.8H, v19.8H
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add v24.8H, v24.8H, v19.8H
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add v25.8H, v26.8H, v30.8H
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sub v30.8H, v26.8H, v30.8H
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add v26.8H, v28.8H, v17.8H
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sub v29.8H, v28.8H, v17.8H
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add v27.8H, v18.8H, v16.8H
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sub v28.8H, v18.8H, v16.8H
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.endif
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.unreq va
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.unreq vb
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.endm
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function ff_h264_idct8_add_neon, export=1
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movi v19.8H, #0
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ld1 {v24.8H, v25.8H}, [x1]
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st1 {v19.8H}, [x1], #16
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st1 {v19.8H}, [x1], #16
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ld1 {v26.8H, v27.8H}, [x1]
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st1 {v19.8H}, [x1], #16
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st1 {v19.8H}, [x1], #16
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ld1 {v28.8H, v29.8H}, [x1]
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st1 {v19.8H}, [x1], #16
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st1 {v19.8H}, [x1], #16
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idct8x8_cols 0
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transpose_8x8H v24, v25, v26, v27, v28, v29, v18, v31, v6, v7
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idct8x8_cols 1
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mov x3, x0
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srshr v24.8H, v24.8H, #6
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ld1 {v0.8B}, [x0], x2
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srshr v25.8H, v25.8H, #6
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ld1 {v1.8B}, [x0], x2
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srshr v26.8H, v26.8H, #6
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ld1 {v2.8B}, [x0], x2
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srshr v27.8H, v27.8H, #6
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ld1 {v3.8B}, [x0], x2
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srshr v28.8H, v28.8H, #6
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ld1 {v4.8B}, [x0], x2
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srshr v29.8H, v29.8H, #6
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ld1 {v5.8B}, [x0], x2
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srshr v30.8H, v30.8H, #6
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ld1 {v6.8B}, [x0], x2
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srshr v31.8H, v31.8H, #6
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ld1 {v7.8B}, [x0], x2
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uaddw v24.8H, v24.8H, v0.8B
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uaddw v25.8H, v25.8H, v1.8B
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uaddw v26.8H, v26.8H, v2.8B
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sqxtun v0.8B, v24.8H
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uaddw v27.8H, v27.8H, v3.8B
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sqxtun v1.8B, v25.8H
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uaddw v28.8H, v28.8H, v4.8B
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sqxtun v2.8B, v26.8H
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st1 {v0.8B}, [x3], x2
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uaddw v29.8H, v29.8H, v5.8B
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sqxtun v3.8B, v27.8H
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st1 {v1.8B}, [x3], x2
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uaddw v30.8H, v30.8H, v6.8B
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sqxtun v4.8B, v28.8H
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st1 {v2.8B}, [x3], x2
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uaddw v31.8H, v31.8H, v7.8B
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sqxtun v5.8B, v29.8H
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st1 {v3.8B}, [x3], x2
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sqxtun v6.8B, v30.8H
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sqxtun v7.8B, v31.8H
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st1 {v4.8B}, [x3], x2
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st1 {v5.8B}, [x3], x2
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st1 {v6.8B}, [x3], x2
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st1 {v7.8B}, [x3], x2
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sub x1, x1, #128
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ret
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endfunc
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function ff_h264_idct8_dc_add_neon, export=1
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mov w3, #0
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sxtw x2, w2
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ld1r {v31.8H}, [x1]
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strh w3, [x1]
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ld1 {v0.8B}, [x0], x2
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srshr v31.8H, v31.8H, #6
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ld1 {v1.8B}, [x0], x2
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ld1 {v2.8B}, [x0], x2
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uaddw v24.8H, v31.8H, v0.8B
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ld1 {v3.8B}, [x0], x2
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uaddw v25.8H, v31.8H, v1.8B
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ld1 {v4.8B}, [x0], x2
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uaddw v26.8H, v31.8H, v2.8B
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ld1 {v5.8B}, [x0], x2
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uaddw v27.8H, v31.8H, v3.8B
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ld1 {v6.8B}, [x0], x2
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uaddw v28.8H, v31.8H, v4.8B
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ld1 {v7.8B}, [x0], x2
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uaddw v29.8H, v31.8H, v5.8B
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uaddw v30.8H, v31.8H, v6.8B
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uaddw v31.8H, v31.8H, v7.8B
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sqxtun v0.8B, v24.8H
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sqxtun v1.8B, v25.8H
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sqxtun v2.8B, v26.8H
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sqxtun v3.8B, v27.8H
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sub x0, x0, x2, lsl #3
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st1 {v0.8B}, [x0], x2
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sqxtun v4.8B, v28.8H
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st1 {v1.8B}, [x0], x2
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sqxtun v5.8B, v29.8H
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st1 {v2.8B}, [x0], x2
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sqxtun v6.8B, v30.8H
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st1 {v3.8B}, [x0], x2
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sqxtun v7.8B, v31.8H
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st1 {v4.8B}, [x0], x2
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st1 {v5.8B}, [x0], x2
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st1 {v6.8B}, [x0], x2
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st1 {v7.8B}, [x0], x2
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ret
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endfunc
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function ff_h264_idct8_add4_neon, export=1
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mov x12, x30
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mov x6, x0
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mov x5, x1
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mov x1, x2
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mov w2, w3
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movrel x7, scan8
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mov w10, #16
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movrel x13, X(ff_h264_idct8_dc_add_neon)
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movrel x14, X(ff_h264_idct8_add_neon)
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1: ldrb w9, [x7], #4
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ldrsw x0, [x5], #16
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ldrb w9, [x4, w9, UXTW]
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subs w9, w9, #1
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b.lt 2f
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ldrsh w11, [x1]
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add x0, x6, x0
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ccmp w11, #0, #4, eq
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csel x15, x13, x14, ne
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blr x15
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2: subs w10, w10, #4
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add x1, x1, #128
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b.ne 1b
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ret x12
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endfunc
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const scan8
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.byte 4+ 1*8, 5+ 1*8, 4+ 2*8, 5+ 2*8
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.byte 6+ 1*8, 7+ 1*8, 6+ 2*8, 7+ 2*8
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.byte 4+ 3*8, 5+ 3*8, 4+ 4*8, 5+ 4*8
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.byte 6+ 3*8, 7+ 3*8, 6+ 4*8, 7+ 4*8
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.byte 4+ 6*8, 5+ 6*8, 4+ 7*8, 5+ 7*8
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.byte 6+ 6*8, 7+ 6*8, 6+ 7*8, 7+ 7*8
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.byte 4+ 8*8, 5+ 8*8, 4+ 9*8, 5+ 9*8
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.byte 6+ 8*8, 7+ 8*8, 6+ 9*8, 7+ 9*8
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.byte 4+11*8, 5+11*8, 4+12*8, 5+12*8
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.byte 6+11*8, 7+11*8, 6+12*8, 7+12*8
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.byte 4+13*8, 5+13*8, 4+14*8, 5+14*8
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.byte 6+13*8, 7+13*8, 6+14*8, 7+14*8
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endconst
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