89 lines
3.2 KiB
ArmAsm
89 lines
3.2 KiB
ArmAsm
/****************************************************************************
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* dct-a-sve.S: aarch64 transform and zigzag
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*****************************************************************************
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* Copyright (C) 2009-2025 x264 project
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*
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* Authors: David Chen <david.chen@myais.com.cn>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at licensing@x264.com.
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*****************************************************************************/
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#include "asm.S"
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#include "dct-a-common.S"
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ENABLE_SVE
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function sub4x4_dct_sve, export=1
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mov x3, #FENC_STRIDE
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mov x4, #FDEC_STRIDE
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ptrue p0.h, vl4
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ld1b {z0.h}, p0/z, [x1]
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add x1, x1, x3
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ld1b {z1.h}, p0/z, [x2]
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add x2, x2, x4
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ld1b {z2.h}, p0/z, [x1]
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add x1, x1, x3
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sub v16.4h, v0.4h, v1.4h
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ld1b {z3.h}, p0/z, [x2]
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add x2, x2, x4
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ld1b {z4.h}, p0/z, [x1]
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add x1, x1, x3
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sub v17.4h, v2.4h, v3.4h
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ld1b {z5.h}, p0/z, [x2]
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add x2, x2, x4
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ld1b {z6.h}, p0/z, [x1]
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sub v18.4h, v4.4h, v5.4h
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ld1b {z7.h}, p0/z, [x2]
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sub v19.4h, v6.4h, v7.4h
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DCT_1D v0.4h, v1.4h, v2.4h, v3.4h, v16.4h, v17.4h, v18.4h, v19.4h
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transpose4x4.h v0, v1, v2, v3, v4, v5, v6, v7
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DCT_1D v4.4h, v5.4h, v6.4h, v7.4h, v0.4h, v1.4h, v2.4h, v3.4h
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st1 {v4.4h,v5.4h,v6.4h,v7.4h}, [x0]
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ret
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endfunc
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function zigzag_interleave_8x8_cavlc_sve, export=1
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mov z31.s, #1
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ptrue p2.s, vl2
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ld4 {v0.8h,v1.8h,v2.8h,v3.8h}, [x1], #64
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ld4 {v4.8h,v5.8h,v6.8h,v7.8h}, [x1], #64
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umax v16.8h, v0.8h, v4.8h
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umax v17.8h, v1.8h, v5.8h
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umax v18.8h, v2.8h, v6.8h
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umax v19.8h, v3.8h, v7.8h
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st1 {v0.8h}, [x0], #16
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st1 {v4.8h}, [x0], #16
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umaxp v16.8h, v16.8h, v17.8h
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umaxp v18.8h, v18.8h, v19.8h
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st1 {v1.8h}, [x0], #16
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st1 {v5.8h}, [x0], #16
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umaxp v16.8h, v16.8h, v18.8h
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st1 {v2.8h}, [x0], #16
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st1 {v6.8h}, [x0], #16
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cmhs v16.4s, v16.4s, v31.4s
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st1 {v3.8h}, [x0], #16
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and v16.16b, v16.16b, v31.16b
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st1 {v7.8h}, [x0], #16
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st1b {z16.s}, p2, [x2]
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add x2, x2, #8
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mov v16.d[0], v16.d[1]
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st1b {z16.s}, p2, [x2]
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ret
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endfunc
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