/* * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com> * Copyright (c) 2016 Clément Bœsch <clement stupeflix.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavutil/aarch64/asm.S" .macro load_yoff_ycoeff yoff ycoeff #if defined(__APPLE__) ldp w9, w10, [sp, #\yoff] #else ldr w9, [sp, #\yoff] ldr w10, [sp, #\ycoeff] #endif .endm .macro load_args_nv12 ldr x8, [sp] // table load_yoff_ycoeff 8, 16 // y_offset, y_coeff ld1 {v1.1D}, [x8] dup v0.8H, w10 dup v3.8H, w9 sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding) sub w5, w5, w0 // w5 = linesizeY - width (paddingY) sub w7, w7, w0 // w7 = linesizeC - width (paddingC) neg w11, w0 .endm .macro load_args_nv21 load_args_nv12 .endm .macro load_args_yuv420p ldr x13, [sp] // srcV ldr w14, [sp, #8] // linesizeV ldr x8, [sp, #16] // table load_yoff_ycoeff 24, 32 // y_offset, y_coeff ld1 {v1.1D}, [x8] dup v0.8H, w10 dup v3.8H, w9 sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding) sub w5, w5, w0 // w5 = linesizeY - width (paddingY) sub w7, w7, w0, lsr #1 // w7 = linesizeU - width / 2 (paddingU) sub w14, w14, w0, lsr #1 // w14 = linesizeV - width / 2 (paddingV) lsr w11, w0, #1 neg w11, w11 .endm .macro load_args_yuv422p ldr x13, [sp] // srcV ldr w14, [sp, #8] // linesizeV ldr x8, [sp, #16] // table load_yoff_ycoeff 24, 32 // y_offset, y_coeff ld1 {v1.1D}, [x8] dup v0.8H, w10 dup v3.8H, w9 sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding) sub w5, w5, w0 // w5 = linesizeY - width (paddingY) sub w7, w7, w0, lsr #1 // w7 = linesizeU - width / 2 (paddingU) sub w14, w14, w0, lsr #1 // w14 = linesizeV - width / 2 (paddingV) .endm .macro load_chroma_nv12 ld2 {v16.8B, v17.8B}, [x6], #16 ushll v18.8H, v16.8B, #3 ushll v19.8H, v17.8B, #3 .endm .macro load_chroma_nv21 ld2 {v16.8B, v17.8B}, [x6], #16 ushll v19.8H, v16.8B, #3 ushll v18.8H, v17.8B, #3 .endm .macro load_chroma_yuv420p ld1 {v16.8B}, [ x6], #8 ld1 {v17.8B}, [x13], #8 ushll v18.8H, v16.8B, #3 ushll v19.8H, v17.8B, #3 .endm .macro load_chroma_yuv422p load_chroma_yuv420p .endm .macro increment_nv12 ands w15, w1, #1 csel w16, w7, w11, ne // incC = (h & 1) ? paddincC : -width add x6, x6, w16, SXTW // srcC += incC .endm .macro increment_nv21 increment_nv12 .endm .macro increment_yuv420p ands w15, w1, #1 csel w16, w7, w11, ne // incU = (h & 1) ? paddincU : -width/2 csel w17, w14, w11, ne // incV = (h & 1) ? paddincV : -width/2 add x6, x6, w16, SXTW // srcU += incU add x13, x13, w17, SXTW // srcV += incV .endm .macro increment_yuv422p add x6, x6, w7, UXTW // srcU += incU add x13, x13, w14, UXTW // srcV += incV .endm .macro compute_rgba r1 g1 b1 a1 r2 g2 b2 a2 add v20.8H, v26.8H, v20.8H // Y1 + R1 add v21.8H, v27.8H, v21.8H // Y2 + R2 add v22.8H, v26.8H, v22.8H // Y1 + G1 add v23.8H, v27.8H, v23.8H // Y2 + G2 add v24.8H, v26.8H, v24.8H // Y1 + B1 add v25.8H, v27.8H, v25.8H // Y2 + B2 sqrshrun \r1, v20.8H, #1 // clip_u8((Y1 + R1) >> 1) sqrshrun \r2, v21.8H, #1 // clip_u8((Y2 + R1) >> 1) sqrshrun \g1, v22.8H, #1 // clip_u8((Y1 + G1) >> 1) sqrshrun \g2, v23.8H, #1 // clip_u8((Y2 + G1) >> 1) sqrshrun \b1, v24.8H, #1 // clip_u8((Y1 + B1) >> 1) sqrshrun \b2, v25.8H, #1 // clip_u8((Y2 + B1) >> 1) movi \a1, #255 movi \a2, #255 .endm .macro declare_func ifmt ofmt function ff_\ifmt\()_to_\ofmt\()_neon, export=1 load_args_\ifmt 1: mov w8, w0 // w8 = width 2: movi v5.8H, #4, lsl #8 // 128 * (1<<3) load_chroma_\ifmt sub v18.8H, v18.8H, v5.8H // U*(1<<3) - 128*(1<<3) sub v19.8H, v19.8H, v5.8H // V*(1<<3) - 128*(1<<3) sqdmulh v20.8H, v19.8H, v1.H[0] // V * v2r (R) sqdmulh v22.8H, v18.8H, v1.H[1] // U * u2g sqdmulh v19.8H, v19.8H, v1.H[2] // V * v2g add v22.8H, v22.8H, v19.8H // U * u2g + V * v2g (G) sqdmulh v24.8H, v18.8H, v1.H[3] // U * u2b (B) zip2 v21.8H, v20.8H, v20.8H // R2 zip1 v20.8H, v20.8H, v20.8H // R1 zip2 v23.8H, v22.8H, v22.8H // G2 zip1 v22.8H, v22.8H, v22.8H // G1 zip2 v25.8H, v24.8H, v24.8H // B2 zip1 v24.8H, v24.8H, v24.8H // B1 ld1 {v2.16B}, [x4], #16 // load luma ushll v26.8H, v2.8B, #3 // Y1*(1<<3) ushll2 v27.8H, v2.16B, #3 // Y2*(1<<3) sub v26.8H, v26.8H, v3.8H // Y1*(1<<3) - y_offset sub v27.8H, v27.8H, v3.8H // Y2*(1<<3) - y_offset sqdmulh v26.8H, v26.8H, v0.8H // ((Y1*(1<<3) - y_offset) * y_coeff) >> 15 sqdmulh v27.8H, v27.8H, v0.8H // ((Y2*(1<<3) - y_offset) * y_coeff) >> 15 .ifc \ofmt,argb // 1 2 3 0 compute_rgba v5.8B,v6.8B,v7.8B,v4.8B, v17.8B,v18.8B,v19.8B,v16.8B .endif .ifc \ofmt,rgba // 0 1 2 3 compute_rgba v4.8B,v5.8B,v6.8B,v7.8B, v16.8B,v17.8B,v18.8B,v19.8B .endif .ifc \ofmt,abgr // 3 2 1 0 compute_rgba v7.8B,v6.8B,v5.8B,v4.8B, v19.8B,v18.8B,v17.8B,v16.8B .endif .ifc \ofmt,bgra // 2 1 0 3 compute_rgba v6.8B,v5.8B,v4.8B,v7.8B, v18.8B,v17.8B,v16.8B,v19.8B .endif st4 { v4.8B, v5.8B, v6.8B, v7.8B}, [x2], #32 st4 {v16.8B,v17.8B,v18.8B,v19.8B}, [x2], #32 subs w8, w8, #16 // width -= 16 b.gt 2b add x2, x2, w3, UXTW // dst += padding add x4, x4, w5, UXTW // srcY += paddingY increment_\ifmt subs w1, w1, #1 // height -= 1 b.gt 1b ret endfunc .endm .macro declare_rgb_funcs ifmt declare_func \ifmt, argb declare_func \ifmt, rgba declare_func \ifmt, abgr declare_func \ifmt, bgra .endm declare_rgb_funcs nv12 declare_rgb_funcs nv21 declare_rgb_funcs yuv420p declare_rgb_funcs yuv422p