aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/x86/huffyuvdsp.asm
blob: 0dbe5984218e0cb87712b2cb61afc616e29100c6 (plain) (blame)
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
;******************************************************************************
;* SIMD-optimized HuffYUV functions
;* Copyright (c) 2008 Loren Merritt
;* Copyright (c) 2014 Christophe Gisquet
;*
;* 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
cextern pb_15
pb_zzzzzzzz77777777: times 8 db -1
pb_7: times 8 db 7
pb_zzzz3333zzzzbbbb: db -1,-1,-1,-1,3,3,3,3,-1,-1,-1,-1,11,11,11,11
pb_zz11zz55zz99zzdd: db -1,-1,1,1,-1,-1,5,5,-1,-1,9,9,-1,-1,13,13

SECTION .text

; void ff_add_hfyu_median_pred_mmxext(uint8_t *dst, const uint8_t *top,
;                                     const uint8_t *diff, int w,
;                                     int *left, int *left_top)
%macro HFYU_MEDIAN 0
cglobal add_hfyu_median_pred, 6,6,8, dst, top, diff, w, left, left_top
    movu    m0, [topq]
    mova    m2, m0
    movd    m4, [left_topq]
    LSHIFT  m2, 1
    mova    m1, m0
    por     m4, m2
    movd    m3, [leftq]
    psubb   m0, m4 ; t-tl
    add    dstq, wq
    add    topq, wq
    add   diffq, wq
    neg      wq
    jmp .skip
.loop:
    movu    m4, [topq+wq]
    mova    m0, m4
    LSHIFT  m4, 1
    por     m4, m1
    mova    m1, m0 ; t
    psubb   m0, m4 ; t-tl
.skip:
    movu    m2, [diffq+wq]
%assign i 0
%rep mmsize
    mova    m4, m0
    paddb   m4, m3 ; t-tl+l
    mova    m5, m3
    pmaxub  m3, m1
    pminub  m5, m1
    pminub  m3, m4
    pmaxub  m3, m5 ; median
    paddb   m3, m2 ; +residual
%if i==0
    mova    m7, m3
    LSHIFT  m7, mmsize-1
%else
    mova    m6, m3
    RSHIFT  m7, 1
    LSHIFT  m6, mmsize-1
    por     m7, m6
%endif
%if i<mmsize-1
    RSHIFT  m0, 1
    RSHIFT  m1, 1
    RSHIFT  m2, 1
%endif
%assign i i+1
%endrep
    movu [dstq+wq], m7
    add      wq, mmsize
    jl .loop
    movzx   r2d, byte [dstq-1]
    mov [leftq], r2d
    movzx   r2d, byte [topq-1]
    mov [left_topq], r2d
    RET
%endmacro

%if ARCH_X86_32
INIT_MMX mmxext
HFYU_MEDIAN
%endif
INIT_XMM sse2
HFYU_MEDIAN


%macro ADD_HFYU_LEFT_LOOP 2 ; %1 = dst_is_aligned, %2 = src_is_aligned
    add     srcq, wq
    add     dstq, wq
    neg     wq
%%.loop:
%if %2
    mova    m1, [srcq+wq]
%else
    movu    m1, [srcq+wq]
%endif
    mova    m2, m1
    psllw   m1, 8
    paddb   m1, m2
    mova    m2, m1
    pshufb  m1, m3
    paddb   m1, m2
    pshufb  m0, m5
    mova    m2, m1
    pshufb  m1, m4
    paddb   m1, m2
%if mmsize == 16
    mova    m2, m1
    pshufb  m1, m6
    paddb   m1, m2
%endif
    paddb   m0, m1
%if %1
    mova    [dstq+wq], m0
%else
    movq    [dstq+wq], m0
    movhps  [dstq+wq+8], m0
%endif
    add     wq, mmsize
    jl %%.loop
    mov     eax, mmsize-1
    sub     eax, wd
    movd    m1, eax
    pshufb  m0, m1
    movd    eax, m0
    RET
%endmacro

; int ff_add_hfyu_left_pred(uint8_t *dst, const uint8_t *src, int w, int left)
INIT_MMX ssse3
cglobal add_hfyu_left_pred, 3,3,7, dst, src, w, left
.skip_prologue:
    mova    m5, [pb_7]
    mova    m4, [pb_zzzz3333zzzzbbbb]
    mova    m3, [pb_zz11zz55zz99zzdd]
    movd    m0, leftm
    psllq   m0, 56
    ADD_HFYU_LEFT_LOOP 1, 1

INIT_XMM sse4
cglobal add_hfyu_left_pred, 3,3,7, dst, src, w, left
    mova    m5, [pb_15]
    mova    m6, [pb_zzzzzzzz77777777]
    mova    m4, [pb_zzzz3333zzzzbbbb]
    mova    m3, [pb_zz11zz55zz99zzdd]
    movd    m0, leftm
    pslldq  m0, 15
    test    srcq, 15
    jnz .src_unaligned
    test    dstq, 15
    jnz .dst_unaligned
    ADD_HFYU_LEFT_LOOP 1, 1
.dst_unaligned:
    ADD_HFYU_LEFT_LOOP 0, 1
.src_unaligned:
    ADD_HFYU_LEFT_LOOP 0, 0

%macro ADD_BYTES 0
cglobal add_bytes, 3,4,2, dst, src, w, size
    mov  sizeq, wq
    and  sizeq, -2*mmsize
    jz  .2
    add   dstq, sizeq
    add   srcq, sizeq
    neg  sizeq
.1:
    mova    m0, [srcq + sizeq]
    mova    m1, [srcq + sizeq + mmsize]
    paddb   m0, [dstq + sizeq]
    paddb   m1, [dstq + sizeq + mmsize]
    mova   [dstq + sizeq], m0
    mova   [dstq + sizeq + mmsize], m1
    add  sizeq, 2*mmsize
    jl .1
.2:
    and     wq, 2*mmsize-1
    jz    .end
    add   dstq, wq
    add   srcq, wq
    neg     wq
.3:
    mov  sizeb, [srcq + wq]
    add [dstq + wq], sizeb
    inc     wq
    jl .3
.end:
    REP_RET
%endmacro

%if ARCH_X86_32
INIT_MMX mmx
ADD_BYTES
%endif
INIT_XMM sse2
ADD_BYTES

; void add_hfyu_left_pred_bgr32(uint8_t *dst, const uint8_t *src,
;                               intptr_t w, uint8_t *left)
%macro LEFT_BGR32 0
cglobal add_hfyu_left_pred_bgr32, 4,4,3, dst, src, w, left
    shl           wq, 2
    movd          m0, [leftq]
    lea         dstq, [dstq + wq]
    lea         srcq, [srcq + wq]
    LSHIFT        m0, mmsize-4
    neg           wq
.loop:
    movu          m1, [srcq+wq]
    mova          m2, m1
%if mmsize == 8
    punpckhdq     m0, m0
%endif
    LSHIFT        m1, 4
    paddb         m1, m2
%if mmsize == 16
    pshufd        m0, m0, q3333
    mova          m2, m1
    LSHIFT        m1, 8
    paddb         m1, m2
%endif
    paddb         m0, m1
    movu   [dstq+wq], m0
    add           wq, mmsize
    jl         .loop
    movd          m0, [dstq-4]
    movd     [leftq], m0
    REP_RET
%endmacro

%if ARCH_X86_32
INIT_MMX mmx
LEFT_BGR32
%endif
INIT_XMM sse2
LEFT_BGR32