mirror of https://git.ffmpeg.org/ffmpeg.git
184 lines
6.2 KiB
ArmAsm
184 lines
6.2 KiB
ArmAsm
/* -*-arm64-*-
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* vim: syntax=arm64asm
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*
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* Copyright (c) 2014 Seppo Tomperi <seppo.tomperi@vtt.fi>
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* Copyright (c) 2023 J. Dekker <jdek@itanimul.li>
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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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.macro hevc_loop_filter_chroma_start bitdepth
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mov x4, x30
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ldr w14, [x2]
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ldr w15, [x2, #4]
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.if \bitdepth > 8
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lsl w14, w14, #(\bitdepth - 8)
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lsl w15, w15, #(\bitdepth - 8)
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.endif
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adds w2, w14, w15
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b.eq 1f
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dup v16.4h, w14
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dup v17.4h, w15
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trn1 v16.2d, v16.2d, v17.2d
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.if \bitdepth > 8
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mvni v19.8h, #((0xff << (\bitdepth - 8)) & 0xff), lsl #8
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movi v18.8h, #0
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.endif
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neg v17.8h, v16.8h
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.endm
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.macro hevc_loop_filter_chroma_body bitdepth
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.if \bitdepth <= 8
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uxtl v20.8h, v0.8b // p1
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uxtl v1.8h, v1.8b // p0
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uxtl v2.8h, v2.8b // q0
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uxtl v23.8h, v3.8b // q1
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va .req v20
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vb .req v23
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.else // required to specify both cases as we are unable to do: v0 .req v20
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va .req v0
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vb .req v3
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.endif
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sub v5.8h, v2.8h, v1.8h // q0 - p0
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sub v6.8h, va.8h, vb.8h // p1 - q1
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shl v5.8h, v5.8h, #2
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add v5.8h, v6.8h, v5.8h
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srshr v5.8h, v5.8h, #3
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clip v17.8h, v16.8h, v5.8h
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sqadd v1.8h, v1.8h, v5.8h // p0 + delta
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sqsub v2.8h, v2.8h, v5.8h // q0 - delta
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.if \bitdepth <= 8
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sqxtun v1.8b, v1.8h
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sqxtun v2.8b, v2.8h
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.else
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clip v18.8h, v19.8h, v1.8h, v2.8h
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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 hevc_loop_filter_chroma_body_8_neon, export=0
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hevc_loop_filter_chroma_body 8
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ret
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endfunc
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function hevc_loop_filter_chroma_body_10_neon, export=0
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hevc_loop_filter_chroma_body_12_neon:
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hevc_loop_filter_chroma_body 10
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ret
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endfunc
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// void ff_hevc_h_loop_filter_chroma_8_neon(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
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.macro hevc_h_loop_filter_chroma bitdepth
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function ff_hevc_h_loop_filter_chroma_\bitdepth\()_neon, export=1
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hevc_loop_filter_chroma_start \bitdepth
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sub x0, x0, x1, lsl #1
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.if \bitdepth > 8
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ld1 {v0.8h}, [x0], x1
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ld1 {v1.8h}, [x0], x1
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ld1 {v2.8h}, [x0], x1
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ld1 {v3.8h}, [x0]
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.else
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ld1 {v0.8b}, [x0], x1
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ld1 {v1.8b}, [x0], x1
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ld1 {v2.8b}, [x0], x1
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ld1 {v3.8b}, [x0]
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.endif
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sub x0, x0, x1, lsl #1
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bl hevc_loop_filter_chroma_body_\bitdepth\()_neon
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.if \bitdepth > 8
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st1 {v1.8h}, [x0], x1
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st1 {v2.8h}, [x0]
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.else
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st1 {v1.8b}, [x0], x1
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st1 {v2.8b}, [x0]
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.endif
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1: ret x4
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endfunc
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.endm
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.macro hevc_v_loop_filter_chroma bitdepth
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function ff_hevc_v_loop_filter_chroma_\bitdepth\()_neon, export=1
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hevc_loop_filter_chroma_start \bitdepth
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.if \bitdepth > 8
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sub x0, x0, #4
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add x3, x0, x1
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lsl x1, x1, #1
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ld1 {v0.d}[0], [x0], x1
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ld1 {v1.d}[0], [x3], x1
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ld1 {v2.d}[0], [x0], x1
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ld1 {v3.d}[0], [x3], x1
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ld1 {v0.d}[1], [x0], x1
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ld1 {v1.d}[1], [x3], x1
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ld1 {v2.d}[1], [x0], x1
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ld1 {v3.d}[1], [x3], x1
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transpose_4x8H v0, v1, v2, v3, v28, v29, v30, v31
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.else
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sub x0, x0, #2
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add x3, x0, x1
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lsl x1, x1, #1
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ld1 {v0.s}[0], [x0], x1
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ld1 {v1.s}[0], [x3], x1
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ld1 {v2.s}[0], [x0], x1
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ld1 {v3.s}[0], [x3], x1
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ld1 {v0.s}[1], [x0], x1
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ld1 {v1.s}[1], [x3], x1
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ld1 {v2.s}[1], [x0], x1
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ld1 {v3.s}[1], [x3], x1
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transpose_4x8B v0, v1, v2, v3, v28, v29, v30, v31
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.endif
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sub x0, x0, x1, lsl #2
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sub x3, x3, x1, lsl #2
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bl hevc_loop_filter_chroma_body_\bitdepth\()_neon
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.if \bitdepth > 8
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transpose_4x8H v0, v1, v2, v3, v28, v29, v30, v31
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st1 {v0.d}[0], [x0], x1
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st1 {v1.d}[0], [x3], x1
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st1 {v2.d}[0], [x0], x1
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st1 {v3.d}[0], [x3], x1
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st1 {v0.d}[1], [x0], x1
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st1 {v1.d}[1], [x3], x1
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st1 {v2.d}[1], [x0], x1
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st1 {v3.d}[1], [x3]
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.else
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transpose_4x8B v0, v1, v2, v3, v28, v29, v30, v31
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st1 {v0.s}[0], [x0], x1
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st1 {v1.s}[0], [x3], x1
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st1 {v2.s}[0], [x0], x1
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st1 {v3.s}[0], [x3], x1
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st1 {v0.s}[1], [x0], x1
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st1 {v1.s}[1], [x3], x1
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st1 {v2.s}[1], [x0], x1
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st1 {v3.s}[1], [x3]
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.endif
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1: ret x4
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endfunc
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.endm
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hevc_h_loop_filter_chroma 8
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hevc_h_loop_filter_chroma 10
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hevc_h_loop_filter_chroma 12
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hevc_v_loop_filter_chroma 8
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hevc_v_loop_filter_chroma 10
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hevc_v_loop_filter_chroma 12
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