2 * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
3 * Copyright (c) 2016 Clément Bœsch <clement stupeflix.com>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/aarch64/asm.S"
24 .macro load_yoff_ycoeff yoff ycoeff
25 #if defined(__APPLE__)
26 ldp w9, w10, [sp, #\yoff]
29 ldr w10, [sp, #\ycoeff]
35 load_yoff_ycoeff 8, 16 // y_offset, y_coeff
39 sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding)
40 sub w5, w5, w0 // w5 = linesizeY - width (paddingY)
41 sub w7, w7, w0 // w7 = linesizeC - width (paddingC)
49 .macro load_args_yuv420p
51 ldr w14, [sp, #8] // linesizeV
52 ldr x8, [sp, #16] // table
53 load_yoff_ycoeff 24, 32 // y_offset, y_coeff
57 sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding)
58 sub w5, w5, w0 // w5 = linesizeY - width (paddingY)
59 sub w7, w7, w0, lsr #1 // w7 = linesizeU - width / 2 (paddingU)
60 sub w14, w14, w0, lsr #1 // w14 = linesizeV - width / 2 (paddingV)
65 .macro load_args_yuv422p
67 ldr w14, [sp, #8] // linesizeV
68 ldr x8, [sp, #16] // table
69 load_yoff_ycoeff 24, 32 // y_offset, y_coeff
73 sub w3, w3, w0, lsl #2 // w3 = linesize - width * 4 (padding)
74 sub w5, w5, w0 // w5 = linesizeY - width (paddingY)
75 sub w7, w7, w0, lsr #1 // w7 = linesizeU - width / 2 (paddingU)
76 sub w14, w14, w0, lsr #1 // w14 = linesizeV - width / 2 (paddingV)
79 .macro load_chroma_nv12
80 ld2 {v16.8B, v17.8B}, [x6], #16
81 ushll v18.8H, v16.8B, #3
82 ushll v19.8H, v17.8B, #3
85 .macro load_chroma_nv21
86 ld2 {v16.8B, v17.8B}, [x6], #16
87 ushll v19.8H, v16.8B, #3
88 ushll v18.8H, v17.8B, #3
91 .macro load_chroma_yuv420p
92 ld1 {v16.8B}, [ x6], #8
93 ld1 {v17.8B}, [x13], #8
94 ushll v18.8H, v16.8B, #3
95 ushll v19.8H, v17.8B, #3
98 .macro load_chroma_yuv422p
102 .macro increment_nv12
104 csel w16, w7, w11, ne // incC = (h & 1) ? paddincC : -width
105 add x6, x6, w16, SXTW // srcC += incC
108 .macro increment_nv21
112 .macro increment_yuv420p
114 csel w16, w7, w11, ne // incU = (h & 1) ? paddincU : -width/2
115 csel w17, w14, w11, ne // incV = (h & 1) ? paddincV : -width/2
116 add x6, x6, w16, SXTW // srcU += incU
117 add x13, x13, w17, SXTW // srcV += incV
120 .macro increment_yuv422p
121 add x6, x6, w7, UXTW // srcU += incU
122 add x13, x13, w14, UXTW // srcV += incV
125 .macro compute_rgba r1 g1 b1 a1 r2 g2 b2 a2
126 add v20.8H, v26.8H, v20.8H // Y1 + R1
127 add v21.8H, v27.8H, v21.8H // Y2 + R2
128 add v22.8H, v26.8H, v22.8H // Y1 + G1
129 add v23.8H, v27.8H, v23.8H // Y2 + G2
130 add v24.8H, v26.8H, v24.8H // Y1 + B1
131 add v25.8H, v27.8H, v25.8H // Y2 + B2
132 sqrshrun \r1, v20.8H, #1 // clip_u8((Y1 + R1) >> 1)
133 sqrshrun \r2, v21.8H, #1 // clip_u8((Y2 + R1) >> 1)
134 sqrshrun \g1, v22.8H, #1 // clip_u8((Y1 + G1) >> 1)
135 sqrshrun \g2, v23.8H, #1 // clip_u8((Y2 + G1) >> 1)
136 sqrshrun \b1, v24.8H, #1 // clip_u8((Y1 + B1) >> 1)
137 sqrshrun \b2, v25.8H, #1 // clip_u8((Y2 + B1) >> 1)
142 .macro declare_func ifmt ofmt
143 function ff_\ifmt\()_to_\ofmt\()_neon, export=1
146 mov w8, w0 // w8 = width
148 movi v5.8H, #4, lsl #8 // 128 * (1<<3)
150 sub v18.8H, v18.8H, v5.8H // U*(1<<3) - 128*(1<<3)
151 sub v19.8H, v19.8H, v5.8H // V*(1<<3) - 128*(1<<3)
152 sqdmulh v20.8H, v19.8H, v1.H[0] // V * v2r (R)
153 sqdmulh v22.8H, v18.8H, v1.H[1] // U * u2g
154 sqdmulh v19.8H, v19.8H, v1.H[2] // V * v2g
155 add v22.8H, v22.8H, v19.8H // U * u2g + V * v2g (G)
156 sqdmulh v24.8H, v18.8H, v1.H[3] // U * u2b (B)
157 zip2 v21.8H, v20.8H, v20.8H // R2
158 zip1 v20.8H, v20.8H, v20.8H // R1
159 zip2 v23.8H, v22.8H, v22.8H // G2
160 zip1 v22.8H, v22.8H, v22.8H // G1
161 zip2 v25.8H, v24.8H, v24.8H // B2
162 zip1 v24.8H, v24.8H, v24.8H // B1
163 ld1 {v2.16B}, [x4], #16 // load luma
164 ushll v26.8H, v2.8B, #3 // Y1*(1<<3)
165 ushll2 v27.8H, v2.16B, #3 // Y2*(1<<3)
166 sub v26.8H, v26.8H, v3.8H // Y1*(1<<3) - y_offset
167 sub v27.8H, v27.8H, v3.8H // Y2*(1<<3) - y_offset
168 sqdmulh v26.8H, v26.8H, v0.8H // ((Y1*(1<<3) - y_offset) * y_coeff) >> 15
169 sqdmulh v27.8H, v27.8H, v0.8H // ((Y2*(1<<3) - y_offset) * y_coeff) >> 15
171 .ifc \ofmt,argb // 1 2 3 0
172 compute_rgba v5.8B,v6.8B,v7.8B,v4.8B, v17.8B,v18.8B,v19.8B,v16.8B
175 .ifc \ofmt,rgba // 0 1 2 3
176 compute_rgba v4.8B,v5.8B,v6.8B,v7.8B, v16.8B,v17.8B,v18.8B,v19.8B
179 .ifc \ofmt,abgr // 3 2 1 0
180 compute_rgba v7.8B,v6.8B,v5.8B,v4.8B, v19.8B,v18.8B,v17.8B,v16.8B
183 .ifc \ofmt,bgra // 2 1 0 3
184 compute_rgba v6.8B,v5.8B,v4.8B,v7.8B, v18.8B,v17.8B,v16.8B,v19.8B
187 st4 { v4.8B, v5.8B, v6.8B, v7.8B}, [x2], #32
188 st4 {v16.8B,v17.8B,v18.8B,v19.8B}, [x2], #32
189 subs w8, w8, #16 // width -= 16
191 add x2, x2, w3, UXTW // dst += padding
192 add x4, x4, w5, UXTW // srcY += paddingY
194 subs w1, w1, #1 // height -= 1
200 .macro declare_rgb_funcs ifmt
201 declare_func \ifmt, argb
202 declare_func \ifmt, rgba
203 declare_func \ifmt, abgr
204 declare_func \ifmt, bgra
207 declare_rgb_funcs nv12
208 declare_rgb_funcs nv21
209 declare_rgb_funcs yuv420p
210 declare_rgb_funcs yuv422p