summaryrefslogtreecommitdiff
path: root/libavcodec/x86/dwt_yasm.asm
blob: 658acc13fcab835e9242bd5bf3dc00ecb05efe86 (plain)
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
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
;******************************************************************************
;* MMX optimized discrete wavelet trasnform
;* Copyright (c) 2010 David Conrad
;*
;* 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
;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************

%include "libavutil/x86/x86util.asm"

SECTION_RODATA
pw_1991: times 4 dw 9,-1

cextern pw_1
cextern pw_2
cextern pw_8
cextern pw_16

section .text

; %1 -= (%2 + %3 + 2)>>2     %4 is pw_2
%macro COMPOSE_53iL0 4
    paddw   %2, %3
    paddw   %2, %4
    psraw   %2, 2
    psubw   %1, %2
%endm

; m1 = %1 + (-m0 + 9*m1 + 9*%2 -%3 + 8)>>4
; if %4 is supplied, %1 is loaded unaligned from there
; m2: clobbered  m3: pw_8  m4: pw_1991
%macro COMPOSE_DD97iH0 3-4
    paddw   m0, %3
    paddw   m1, %2
    psubw   m0, m3
    mova    m2, m1
    punpcklwd m1, m0
    punpckhwd m2, m0
    pmaddwd m1, m4
    pmaddwd m2, m4
%if %0 > 3
    movu    %1, %4
%endif
    psrad   m1, 4
    psrad   m2, 4
    packssdw m1, m2
    paddw   m1, %1
%endm

%macro COMPOSE_VERTICAL 1
; void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
;                                  int width)
cglobal vertical_compose53iL0_%1, 4,4,1, b0, b1, b2, width
    mova    m2, [pw_2]
%if ARCH_X86_64
    mov     widthd, widthd
%endif
.loop:
    sub     widthq, mmsize/2
    mova    m1, [b0q+2*widthq]
    mova    m0, [b1q+2*widthq]
    COMPOSE_53iL0 m0, m1, [b2q+2*widthq], m2
    mova    [b1q+2*widthq], m0
    jg      .loop
    REP_RET

; void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
;                                  int width)
cglobal vertical_compose_dirac53iH0_%1, 4,4,1, b0, b1, b2, width
    mova    m1, [pw_1]
%if ARCH_X86_64
    mov     widthd, widthd
%endif
.loop:
    sub     widthq, mmsize/2
    mova    m0, [b0q+2*widthq]
    paddw   m0, [b2q+2*widthq]
    paddw   m0, m1
    psraw   m0, 1
    paddw   m0, [b1q+2*widthq]
    mova    [b1q+2*widthq], m0
    jg      .loop
    REP_RET

; void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
;                               IDWTELEM *b3, IDWTELEM *b4, int width)
cglobal vertical_compose_dd97iH0_%1, 6,6,5, b0, b1, b2, b3, b4, width
    mova    m3, [pw_8]
    mova    m4, [pw_1991]
%if ARCH_X86_64
    mov     widthd, widthd
%endif
.loop:
    sub     widthq, mmsize/2
    mova    m0, [b0q+2*widthq]
    mova    m1, [b1q+2*widthq]
    COMPOSE_DD97iH0 [b2q+2*widthq], [b3q+2*widthq], [b4q+2*widthq]
    mova    [b2q+2*widthq], m1
    jg      .loop
    REP_RET

; void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
;                                IDWTELEM *b3, IDWTELEM *b4, int width)
cglobal vertical_compose_dd137iL0_%1, 6,6,6, b0, b1, b2, b3, b4, width
    mova    m3, [pw_16]
    mova    m4, [pw_1991]
%if ARCH_X86_64
    mov     widthd, widthd
%endif
.loop:
    sub     widthq, mmsize/2
    mova    m0, [b0q+2*widthq]
    mova    m1, [b1q+2*widthq]
    mova    m5, [b2q+2*widthq]
    paddw   m0, [b4q+2*widthq]
    paddw   m1, [b3q+2*widthq]
    psubw   m0, m3
    mova    m2, m1
    punpcklwd m1, m0
    punpckhwd m2, m0
    pmaddwd m1, m4
    pmaddwd m2, m4
    psrad   m1, 5
    psrad   m2, 5
    packssdw m1, m2
    psubw   m5, m1
    mova    [b2q+2*widthq], m5
    jg      .loop
    REP_RET

; void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width)
cglobal vertical_compose_haar_%1, 3,4,3, b0, b1, width
    mova    m3, [pw_1]
%if ARCH_X86_64
    mov     widthd, widthd
%endif
.loop:
    sub     widthq, mmsize/2
    mova    m1, [b1q+2*widthq]
    mova    m0, [b0q+2*widthq]
    mova    m2, m1
    paddw   m1, m3
    psraw   m1, 1
    psubw   m0, m1
    mova    [b0q+2*widthq], m0
    paddw   m2, m0
    mova    [b1q+2*widthq], m2
    jg      .loop
    REP_RET
%endmacro

; extend the left and right edges of the tmp array by %1 and %2 respectively
%macro EDGE_EXTENSION 3
    mov     %3, [tmpq]
%assign %%i 1
%rep %1
    mov     [tmpq-2*%%i], %3
    %assign %%i %%i+1
%endrep
    mov     %3, [tmpq+2*w2q-2]
%assign %%i 0
%rep %2
    mov     [tmpq+2*w2q+2*%%i], %3
    %assign %%i %%i+1
%endrep
%endmacro


%macro HAAR_HORIZONTAL 2
; void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *tmp, int width)
cglobal horizontal_compose_haar%2i_%1, 3,6,4, b, tmp, w, x, w2, b_w2
    mov    w2d, wd
    xor     xq, xq
    shr    w2d, 1
    lea  b_w2q, [bq+wq]
    mova    m3, [pw_1]
.lowpass_loop:
    movu    m1, [b_w2q + 2*xq]
    mova    m0, [bq    + 2*xq]
    paddw   m1, m3
    psraw   m1, 1
    psubw   m0, m1
    mova    [tmpq + 2*xq], m0
    add     xq, mmsize/2
    cmp     xq, w2q
    jl      .lowpass_loop

    xor     xq, xq
    and    w2q, ~(mmsize/2 - 1)
    cmp    w2q, mmsize/2
    jl      .end

.highpass_loop:
    movu    m1, [b_w2q + 2*xq]
    mova    m0, [tmpq  + 2*xq]
    paddw   m1, m0

    ; shift and interleave
%if %2 == 1
    paddw   m0, m3
    paddw   m1, m3
    psraw   m0, 1
    psraw   m1, 1
%endif
    mova    m2, m0
    punpcklwd m0, m1
    punpckhwd m2, m1
    mova    [bq+4*xq], m0
    mova    [bq+4*xq+mmsize], m2

    add     xq, mmsize/2
    cmp     xq, w2q
    jl      .highpass_loop
.end:
    REP_RET
%endmacro


INIT_XMM
; void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int width)
cglobal horizontal_compose_dd97i_ssse3, 3,6,8, b, tmp, w, x, w2, b_w2
    mov    w2d, wd
    xor     xd, xd
    shr    w2d, 1
    lea  b_w2q, [bq+wq]
    movu    m4, [bq+wq]
    mova    m7, [pw_2]
    pslldq  m4, 14
.lowpass_loop:
    movu    m1, [b_w2q + 2*xq]
    mova    m0, [bq    + 2*xq]
    mova    m2, m1
    palignr m1, m4, 14
    mova    m4, m2
    COMPOSE_53iL0 m0, m1, m2, m7
    mova    [tmpq + 2*xq], m0
    add     xd, mmsize/2
    cmp     xd, w2d
    jl      .lowpass_loop

    EDGE_EXTENSION 1, 2, xw
    ; leave the last up to 7 (sse) or 3 (mmx) values for C
    xor     xd, xd
    and    w2d, ~(mmsize/2 - 1)
    cmp    w2d, mmsize/2
    jl      .end

    mova    m7, [tmpq-mmsize]
    mova    m0, [tmpq]
    mova    m5, [pw_1]
    mova    m3, [pw_8]
    mova    m4, [pw_1991]
.highpass_loop:
    mova    m6, m0
    palignr m0, m7, 14
    mova    m7, [tmpq + 2*xq + 16]
    mova    m1, m7
    mova    m2, m7
    palignr m1, m6, 2
    palignr m2, m6, 4
    COMPOSE_DD97iH0 m0, m6, m2, [b_w2q + 2*xq]
    mova    m0, m7
    mova    m7, m6

    ; shift and interleave
    paddw   m6, m5
    paddw   m1, m5
    psraw   m6, 1
    psraw   m1, 1
    mova    m2, m6
    punpcklwd m6, m1
    punpckhwd m2, m1
    mova    [bq+4*xq], m6
    mova    [bq+4*xq+mmsize], m2

    add     xd, mmsize/2
    cmp     xd, w2d
    jl      .highpass_loop
.end:
    REP_RET


%if ARCH_X86_64 == 0
INIT_MMX
COMPOSE_VERTICAL mmx
HAAR_HORIZONTAL mmx, 0
HAAR_HORIZONTAL mmx, 1
%endif

;;INIT_XMM
INIT_XMM
COMPOSE_VERTICAL sse2
HAAR_HORIZONTAL sse2, 0
HAAR_HORIZONTAL sse2, 1