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212 lines
9.9 KiB
212 lines
9.9 KiB
/* |
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* Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com> |
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* Copyright (c) 2016 Clément Bœsch <clement stupeflix.com> |
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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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.macro load_yoff_ycoeff yoff ycoeff |
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#if defined(__APPLE__) |
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ldp w9, w10, [sp, #\yoff] |
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#else |
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ldr w9, [sp, #\yoff] |
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ldr w10, [sp, #\ycoeff] |
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#endif |
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.endm |
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.macro load_args_nv12 |
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ldr x8, [sp] // table |
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load_yoff_ycoeff 8, 16 // y_offset, y_coeff |
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ld1 {v1.1d}, [x8] |
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dup v0.8h, w10 |
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dup v3.8h, w9 |
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sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding) |
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sub w5, w5, w0 // w5 = linesizeY - width (paddingY) |
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sub w7, w7, w0 // w7 = linesizeC - width (paddingC) |
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neg w11, w0 |
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.endm |
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.macro load_args_nv21 |
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load_args_nv12 |
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.endm |
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.macro load_args_yuv420p |
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ldr x13, [sp] // srcV |
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ldr w14, [sp, #8] // linesizeV |
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ldr x8, [sp, #16] // table |
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load_yoff_ycoeff 24, 32 // y_offset, y_coeff |
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ld1 {v1.1d}, [x8] |
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dup v0.8h, w10 |
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dup v3.8h, w9 |
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sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding) |
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sub w5, w5, w0 // w5 = linesizeY - width (paddingY) |
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sub w7, w7, w0, lsr #1 // w7 = linesizeU - width / 2 (paddingU) |
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sub w14, w14, w0, lsr #1 // w14 = linesizeV - width / 2 (paddingV) |
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lsr w11, w0, #1 |
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neg w11, w11 |
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.endm |
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.macro load_args_yuv422p |
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ldr x13, [sp] // srcV |
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ldr w14, [sp, #8] // linesizeV |
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ldr x8, [sp, #16] // table |
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load_yoff_ycoeff 24, 32 // y_offset, y_coeff |
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ld1 {v1.1d}, [x8] |
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dup v0.8h, w10 |
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dup v3.8h, w9 |
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sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding) |
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sub w5, w5, w0 // w5 = linesizeY - width (paddingY) |
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sub w7, w7, w0, lsr #1 // w7 = linesizeU - width / 2 (paddingU) |
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sub w14, w14, w0, lsr #1 // w14 = linesizeV - width / 2 (paddingV) |
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.endm |
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.macro load_chroma_nv12 |
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ld2 {v16.8b, v17.8b}, [x6], #16 |
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ushll v18.8h, v16.8b, #3 |
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ushll v19.8h, v17.8b, #3 |
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.endm |
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.macro load_chroma_nv21 |
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ld2 {v16.8b, v17.8b}, [x6], #16 |
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ushll v19.8h, v16.8b, #3 |
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ushll v18.8h, v17.8b, #3 |
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.endm |
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.macro load_chroma_yuv420p |
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ld1 {v16.8b}, [ x6], #8 |
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ld1 {v17.8b}, [x13], #8 |
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ushll v18.8h, v16.8b, #3 |
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ushll v19.8h, v17.8b, #3 |
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.endm |
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.macro load_chroma_yuv422p |
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load_chroma_yuv420p |
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.endm |
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.macro increment_nv12 |
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ands w15, w1, #1 |
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csel w16, w7, w11, ne // incC = (h & 1) ? paddincC : -width |
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add x6, x6, w16, sxtw // srcC += incC |
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.endm |
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.macro increment_nv21 |
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increment_nv12 |
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.endm |
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.macro increment_yuv420p |
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ands w15, w1, #1 |
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csel w16, w7, w11, ne // incU = (h & 1) ? paddincU : -width/2 |
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csel w17, w14, w11, ne // incV = (h & 1) ? paddincV : -width/2 |
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add x6, x6, w16, sxtw // srcU += incU |
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add x13, x13, w17, sxtw // srcV += incV |
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.endm |
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.macro increment_yuv422p |
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add x6, x6, w7, sxtw // srcU += incU |
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add x13, x13, w14, sxtw // srcV += incV |
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.endm |
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.macro compute_rgba r1 g1 b1 a1 r2 g2 b2 a2 |
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add v20.8h, v26.8h, v20.8h // Y1 + R1 |
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add v21.8h, v27.8h, v21.8h // Y2 + R2 |
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add v22.8h, v26.8h, v22.8h // Y1 + G1 |
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add v23.8h, v27.8h, v23.8h // Y2 + G2 |
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add v24.8h, v26.8h, v24.8h // Y1 + B1 |
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add v25.8h, v27.8h, v25.8h // Y2 + B2 |
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sqrshrun \r1, v20.8h, #1 // clip_u8((Y1 + R1) >> 1) |
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sqrshrun \r2, v21.8h, #1 // clip_u8((Y2 + R1) >> 1) |
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sqrshrun \g1, v22.8h, #1 // clip_u8((Y1 + G1) >> 1) |
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sqrshrun \g2, v23.8h, #1 // clip_u8((Y2 + G1) >> 1) |
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sqrshrun \b1, v24.8h, #1 // clip_u8((Y1 + B1) >> 1) |
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sqrshrun \b2, v25.8h, #1 // clip_u8((Y2 + B1) >> 1) |
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movi \a1, #255 |
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movi \a2, #255 |
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.endm |
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.macro declare_func ifmt ofmt |
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function ff_\ifmt\()_to_\ofmt\()_neon, export=1 |
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load_args_\ifmt |
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mov w9, w1 |
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1: |
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mov w8, w0 // w8 = width |
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2: |
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movi v5.8h, #4, lsl #8 // 128 * (1<<3) |
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load_chroma_\ifmt |
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sub v18.8h, v18.8h, v5.8h // U*(1<<3) - 128*(1<<3) |
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sub v19.8h, v19.8h, v5.8h // V*(1<<3) - 128*(1<<3) |
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sqdmulh v20.8h, v19.8h, v1.h[0] // V * v2r (R) |
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sqdmulh v22.8h, v18.8h, v1.h[1] // U * u2g |
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sqdmulh v19.8h, v19.8h, v1.h[2] // V * v2g |
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add v22.8h, v22.8h, v19.8h // U * u2g + V * v2g (G) |
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sqdmulh v24.8h, v18.8h, v1.h[3] // U * u2b (B) |
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zip2 v21.8h, v20.8h, v20.8h // R2 |
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zip1 v20.8h, v20.8h, v20.8h // R1 |
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zip2 v23.8h, v22.8h, v22.8h // G2 |
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zip1 v22.8h, v22.8h, v22.8h // G1 |
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zip2 v25.8h, v24.8h, v24.8h // B2 |
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zip1 v24.8h, v24.8h, v24.8h // B1 |
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ld1 {v2.16b}, [x4], #16 // load luma |
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ushll v26.8h, v2.8b, #3 // Y1*(1<<3) |
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ushll2 v27.8h, v2.16b, #3 // Y2*(1<<3) |
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sub v26.8h, v26.8h, v3.8h // Y1*(1<<3) - y_offset |
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sub v27.8h, v27.8h, v3.8h // Y2*(1<<3) - y_offset |
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sqdmulh v26.8h, v26.8h, v0.8h // ((Y1*(1<<3) - y_offset) * y_coeff) >> 15 |
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sqdmulh v27.8h, v27.8h, v0.8h // ((Y2*(1<<3) - y_offset) * y_coeff) >> 15 |
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.ifc \ofmt,argb // 1 2 3 0 |
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compute_rgba v5.8b,v6.8b,v7.8b,v4.8b, v17.8b,v18.8b,v19.8b,v16.8b |
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.endif |
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.ifc \ofmt,rgba // 0 1 2 3 |
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compute_rgba v4.8b,v5.8b,v6.8b,v7.8b, v16.8b,v17.8b,v18.8b,v19.8b |
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.endif |
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.ifc \ofmt,abgr // 3 2 1 0 |
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compute_rgba v7.8b,v6.8b,v5.8b,v4.8b, v19.8b,v18.8b,v17.8b,v16.8b |
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.endif |
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.ifc \ofmt,bgra // 2 1 0 3 |
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compute_rgba v6.8b,v5.8b,v4.8b,v7.8b, v18.8b,v17.8b,v16.8b,v19.8b |
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.endif |
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st4 { v4.8b, v5.8b, v6.8b, v7.8b}, [x2], #32 |
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st4 {v16.8b,v17.8b,v18.8b,v19.8b}, [x2], #32 |
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subs w8, w8, #16 // width -= 16 |
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b.gt 2b |
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add x2, x2, w3, sxtw // dst += padding |
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add x4, x4, w5, sxtw // srcY += paddingY |
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increment_\ifmt |
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subs w1, w1, #1 // height -= 1 |
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b.gt 1b |
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mov w0, w9 |
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ret |
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endfunc |
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.endm |
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.macro declare_rgb_funcs ifmt |
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declare_func \ifmt, argb |
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declare_func \ifmt, rgba |
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declare_func \ifmt, abgr |
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declare_func \ifmt, bgra |
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.endm |
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declare_rgb_funcs nv12 |
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declare_rgb_funcs nv21 |
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declare_rgb_funcs yuv420p |
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declare_rgb_funcs yuv422p
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