1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
;******************************************************************************
;* Copyright Nick Kurshev
;* Copyright Michael (michaelni@gmx.at)
;* Copyright 2018 Jokyo Images
;* Copyright Ivo van Poorten
;*
;* 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/x86/x86util.asm"
SECTION_RODATA
pb_shuffle2103: db 2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15
pb_shuffle0321: db 0, 3, 2, 1, 4, 7, 6, 5, 8, 11, 10, 9, 12, 15, 14, 13
pb_shuffle1230: db 1, 2, 3, 0, 5, 6, 7, 4, 9, 10, 11, 8, 13, 14, 15, 12
pb_shuffle3012: db 3, 0, 1, 2, 7, 4, 5, 6, 11, 8, 9, 10, 15, 12, 13, 14
pb_shuffle3210: db 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
SECTION .text
%macro RSHIFT_COPY 5
; %1 dst ; %2 src ; %3 shift
%if mmsize == 32
vperm2i128 %1, %2, %3, %5
RSHIFT %1, %4
%elif cpuflag(avx)
psrldq %1, %2, %4
%else
mova %1, %2
RSHIFT %1, %4
%endif
%endmacro
;------------------------------------------------------------------------------
; shuffle_bytes_## (const uint8_t *src, uint8_t *dst, int src_size)
;------------------------------------------------------------------------------
; %1-4 index shuffle
%macro SHUFFLE_BYTES 4
cglobal shuffle_bytes_%1%2%3%4, 3, 5, 2, src, dst, w, tmp, x
VBROADCASTI128 m0, [pb_shuffle%1%2%3%4]
movsxdifnidn wq, wd
mov xq, wq
add srcq, wq
add dstq, wq
neg wq
;calc scalar loop
and xq, mmsize-4
je .loop_simd
.loop_scalar:
mov tmpb, [srcq + wq + %1]
mov [dstq+wq + 0], tmpb
mov tmpb, [srcq + wq + %2]
mov [dstq+wq + 1], tmpb
mov tmpb, [srcq + wq + %3]
mov [dstq+wq + 2], tmpb
mov tmpb, [srcq + wq + %4]
mov [dstq+wq + 3], tmpb
add wq, 4
sub xq, 4
jg .loop_scalar
;check if src_size < mmsize
cmp wq, 0
jge .end
.loop_simd:
movu m1, [srcq+wq]
pshufb m1, m0
movu [dstq+wq], m1
add wq, mmsize
jl .loop_simd
.end:
RET
%endmacro
INIT_XMM ssse3
SHUFFLE_BYTES 2, 1, 0, 3
SHUFFLE_BYTES 0, 3, 2, 1
SHUFFLE_BYTES 1, 2, 3, 0
SHUFFLE_BYTES 3, 0, 1, 2
SHUFFLE_BYTES 3, 2, 1, 0
%if ARCH_X86_64
%if HAVE_AVX2_EXTERNAL
INIT_YMM avx2
SHUFFLE_BYTES 2, 1, 0, 3
SHUFFLE_BYTES 0, 3, 2, 1
SHUFFLE_BYTES 1, 2, 3, 0
SHUFFLE_BYTES 3, 0, 1, 2
SHUFFLE_BYTES 3, 2, 1, 0
%endif
%endif
;-----------------------------------------------------------------------------------------------
; uyvytoyuv422(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
; const uint8_t *src, int width, int height,
; int lumStride, int chromStride, int srcStride)
;-----------------------------------------------------------------------------------------------
%macro UYVY_TO_YUV422 0
cglobal uyvytoyuv422, 9, 14, 8, ydst, udst, vdst, src, w, h, lum_stride, chrom_stride, src_stride, wtwo, whalf, tmp, x, back_w
pxor m0, m0
pcmpeqw m1, m1
psrlw m1, 8
movsxdifnidn wq, wd
movsxdifnidn lum_strideq, lum_strided
movsxdifnidn chrom_strideq, chrom_strided
movsxdifnidn src_strideq, src_strided
mov back_wq, wq
mov whalfq, wq
shr whalfq, 1 ; whalf = width / 2
lea srcq, [srcq + wq * 2]
add ydstq, wq
add udstq, whalfq
add vdstq, whalfq
.loop_line:
mov xq, wq
mov wtwoq, wq
add wtwoq, wtwoq ; wtwo = width * 2
neg wq
neg wtwoq
neg whalfq
;calc scalar loop count
and xq, mmsize * 2 - 1
je .loop_simd
.loop_scalar:
mov tmpb, [srcq + wtwoq + 0]
mov [udstq + whalfq], tmpb
mov tmpb, [srcq + wtwoq + 1]
mov [ydstq + wq], tmpb
mov tmpb, [srcq + wtwoq + 2]
mov [vdstq + whalfq], tmpb
mov tmpb, [srcq + wtwoq + 3]
mov [ydstq + wq + 1], tmpb
add wq, 2
add wtwoq, 4
add whalfq, 1
sub xq, 2
jg .loop_scalar
; check if simd loop is need
cmp wq, 0
jge .end_line
.loop_simd:
%if mmsize == 32
movu xm2, [srcq + wtwoq ]
movu xm3, [srcq + wtwoq + 16 ]
movu xm4, [srcq + wtwoq + 16 * 2]
movu xm5, [srcq + wtwoq + 16 * 3]
vinserti128 m2, m2, [srcq + wtwoq + 16 * 4], 1
vinserti128 m3, m3, [srcq + wtwoq + 16 * 5], 1
vinserti128 m4, m4, [srcq + wtwoq + 16 * 6], 1
vinserti128 m5, m5, [srcq + wtwoq + 16 * 7], 1
%else
movu m2, [srcq + wtwoq ]
movu m3, [srcq + wtwoq + mmsize ]
movu m4, [srcq + wtwoq + mmsize * 2]
movu m5, [srcq + wtwoq + mmsize * 3]
%endif
; extract y part 1
RSHIFT_COPY m6, m2, m4, 1, 0x20 ; UYVY UYVY -> YVYU YVY...
pand m6, m1; YxYx YxYx...
RSHIFT_COPY m7, m3, m5, 1, 0x20 ; UYVY UYVY -> YVYU YVY...
pand m7, m1 ; YxYx YxYx...
packuswb m6, m7 ; YYYY YYYY...
movu [ydstq + wq], m6
; extract y part 2
RSHIFT_COPY m6, m4, m2, 1, 0x13 ; UYVY UYVY -> YVYU YVY...
pand m6, m1; YxYx YxYx...
RSHIFT_COPY m7, m5, m3, 1, 0x13 ; UYVY UYVY -> YVYU YVY...
pand m7, m1 ; YxYx YxYx...
packuswb m6, m7 ; YYYY YYYY...
movu [ydstq + wq + mmsize], m6
; extract uv
pand m2, m1 ; UxVx...
pand m3, m1 ; UxVx...
pand m4, m1 ; UxVx...
pand m5, m1 ; UxVx...
packuswb m2, m3 ; UVUV...
packuswb m4, m5 ; UVUV...
; U
pand m6, m2, m1 ; UxUx...
pand m7, m4, m1 ; UxUx...
packuswb m6, m7 ; UUUU
movu [udstq + whalfq], m6
; V
psrlw m2, 8 ; VxVx...
psrlw m4, 8 ; VxVx...
packuswb m2, m4 ; VVVV
movu [vdstq + whalfq], m2
add whalfq, mmsize
add wtwoq, mmsize * 4
add wq, mmsize * 2
jl .loop_simd
.end_line:
add srcq, src_strideq
add ydstq, lum_strideq
add udstq, chrom_strideq
add vdstq, chrom_strideq
;restore initial state of line variable
mov wq, back_wq
mov xq, wq
mov whalfq, wq
shr whalfq, 1 ; whalf = width / 2
sub hd, 1
jg .loop_line
RET
%endmacro
%if ARCH_X86_64
INIT_XMM sse2
UYVY_TO_YUV422
INIT_XMM avx
UYVY_TO_YUV422
INIT_YMM avx2
UYVY_TO_YUV422
%endif
|
