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
|
;
; Copyright (c) 2014 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%include "third_party/x86inc/x86inc.asm"
; This file provides SSSE3 version of the inverse transformation. Part
; of the functions are originally derived from the ffmpeg project.
; Note that the current version applies to x86 64-bit only.
SECTION_RODATA
pw_11585x2: times 8 dw 23170
pd_8192: times 4 dd 8192
pw_16: times 8 dw 16
%macro TRANSFORM_COEFFS 2
pw_%1_%2: dw %1, %2, %1, %2, %1, %2, %1, %2
pw_m%2_%1: dw -%2, %1, -%2, %1, -%2, %1, -%2, %1
%endmacro
TRANSFORM_COEFFS 6270, 15137
TRANSFORM_COEFFS 3196, 16069
TRANSFORM_COEFFS 13623, 9102
%macro PAIR_PP_COEFFS 2
dpw_%1_%2: dw %1, %1, %1, %1, %2, %2, %2, %2
%endmacro
%macro PAIR_MP_COEFFS 2
dpw_m%1_%2: dw -%1, -%1, -%1, -%1, %2, %2, %2, %2
%endmacro
%macro PAIR_MM_COEFFS 2
dpw_m%1_m%2: dw -%1, -%1, -%1, -%1, -%2, -%2, -%2, -%2
%endmacro
PAIR_PP_COEFFS 30274, 12540
PAIR_PP_COEFFS 6392, 32138
PAIR_MP_COEFFS 18204, 27246
PAIR_PP_COEFFS 12540, 12540
PAIR_PP_COEFFS 30274, 30274
PAIR_PP_COEFFS 6392, 6392
PAIR_PP_COEFFS 32138, 32138
PAIR_MM_COEFFS 18204, 18204
PAIR_PP_COEFFS 27246, 27246
SECTION .text
%if ARCH_X86_64
%macro SUM_SUB 3
psubw m%3, m%1, m%2
paddw m%1, m%2
SWAP %2, %3
%endmacro
; butterfly operation
%macro MUL_ADD_2X 6 ; dst1, dst2, src, round, coefs1, coefs2
pmaddwd m%1, m%3, %5
pmaddwd m%2, m%3, %6
paddd m%1, %4
paddd m%2, %4
psrad m%1, 14
psrad m%2, 14
%endmacro
%macro BUTTERFLY_4X 7 ; dst1, dst2, coef1, coef2, round, tmp1, tmp2
punpckhwd m%6, m%2, m%1
MUL_ADD_2X %7, %6, %6, %5, [pw_m%4_%3], [pw_%3_%4]
punpcklwd m%2, m%1
MUL_ADD_2X %1, %2, %2, %5, [pw_m%4_%3], [pw_%3_%4]
packssdw m%1, m%7
packssdw m%2, m%6
%endmacro
; matrix transpose
%macro INTERLEAVE_2X 4
punpckh%1 m%4, m%2, m%3
punpckl%1 m%2, m%3
SWAP %3, %4
%endmacro
%macro TRANSPOSE8X8 9
INTERLEAVE_2X wd, %1, %2, %9
INTERLEAVE_2X wd, %3, %4, %9
INTERLEAVE_2X wd, %5, %6, %9
INTERLEAVE_2X wd, %7, %8, %9
INTERLEAVE_2X dq, %1, %3, %9
INTERLEAVE_2X dq, %2, %4, %9
INTERLEAVE_2X dq, %5, %7, %9
INTERLEAVE_2X dq, %6, %8, %9
INTERLEAVE_2X qdq, %1, %5, %9
INTERLEAVE_2X qdq, %3, %7, %9
INTERLEAVE_2X qdq, %2, %6, %9
INTERLEAVE_2X qdq, %4, %8, %9
SWAP %2, %5
SWAP %4, %7
%endmacro
%macro IDCT8_1D 0
SUM_SUB 0, 4, 9
BUTTERFLY_4X 2, 6, 6270, 15137, m8, 9, 10
pmulhrsw m0, m12
pmulhrsw m4, m12
BUTTERFLY_4X 1, 7, 3196, 16069, m8, 9, 10
BUTTERFLY_4X 5, 3, 13623, 9102, m8, 9, 10
SUM_SUB 1, 5, 9
SUM_SUB 7, 3, 9
SUM_SUB 0, 6, 9
SUM_SUB 4, 2, 9
SUM_SUB 3, 5, 9
pmulhrsw m3, m12
pmulhrsw m5, m12
SUM_SUB 0, 7, 9
SUM_SUB 4, 3, 9
SUM_SUB 2, 5, 9
SUM_SUB 6, 1, 9
SWAP 3, 6
SWAP 1, 4
%endmacro
; This macro handles 8 pixels per line
%macro ADD_STORE_8P_2X 5; src1, src2, tmp1, tmp2, zero
paddw m%1, m11
paddw m%2, m11
psraw m%1, 5
psraw m%2, 5
movh m%3, [outputq]
movh m%4, [outputq + strideq]
punpcklbw m%3, m%5
punpcklbw m%4, m%5
paddw m%3, m%1
paddw m%4, m%2
packuswb m%3, m%5
packuswb m%4, m%5
movh [outputq], m%3
movh [outputq + strideq], m%4
%endmacro
INIT_XMM ssse3
; full inverse 8x8 2D-DCT transform
cglobal idct8x8_64_add, 3, 5, 13, input, output, stride
mova m8, [pd_8192]
mova m11, [pw_16]
mova m12, [pw_11585x2]
lea r3, [2 * strideq]
mova m0, [inputq + 0]
mova m1, [inputq + 16]
mova m2, [inputq + 32]
mova m3, [inputq + 48]
mova m4, [inputq + 64]
mova m5, [inputq + 80]
mova m6, [inputq + 96]
mova m7, [inputq + 112]
TRANSPOSE8X8 0, 1, 2, 3, 4, 5, 6, 7, 9
IDCT8_1D
TRANSPOSE8X8 0, 1, 2, 3, 4, 5, 6, 7, 9
IDCT8_1D
pxor m12, m12
ADD_STORE_8P_2X 0, 1, 9, 10, 12
lea outputq, [outputq + r3]
ADD_STORE_8P_2X 2, 3, 9, 10, 12
lea outputq, [outputq + r3]
ADD_STORE_8P_2X 4, 5, 9, 10, 12
lea outputq, [outputq + r3]
ADD_STORE_8P_2X 6, 7, 9, 10, 12
RET
; inverse 8x8 2D-DCT transform with only first 10 coeffs non-zero
cglobal idct8x8_12_add, 3, 5, 13, input, output, stride
mova m8, [pd_8192]
mova m11, [pw_16]
mova m12, [pw_11585x2]
lea r3, [2 * strideq]
mova m0, [inputq + 0]
mova m1, [inputq + 16]
mova m2, [inputq + 32]
mova m3, [inputq + 48]
punpcklwd m0, m1
punpcklwd m2, m3
punpckhdq m9, m0, m2
punpckldq m0, m2
SWAP 2, 9
; m0 -> [0], [0]
; m1 -> [1], [1]
; m2 -> [2], [2]
; m3 -> [3], [3]
punpckhqdq m10, m0, m0
punpcklqdq m0, m0
punpckhqdq m9, m2, m2
punpcklqdq m2, m2
SWAP 1, 10
SWAP 3, 9
pmulhrsw m0, m12
pmulhrsw m2, [dpw_30274_12540]
pmulhrsw m1, [dpw_6392_32138]
pmulhrsw m3, [dpw_m18204_27246]
SUM_SUB 0, 2, 9
SUM_SUB 1, 3, 9
punpcklqdq m9, m3, m3
punpckhqdq m5, m3, m9
SUM_SUB 3, 5, 9
punpckhqdq m5, m3
pmulhrsw m5, m12
punpckhqdq m9, m1, m5
punpcklqdq m1, m5
SWAP 5, 9
SUM_SUB 0, 5, 9
SUM_SUB 2, 1, 9
punpckhqdq m3, m0, m0
punpckhqdq m4, m1, m1
punpckhqdq m6, m5, m5
punpckhqdq m7, m2, m2
punpcklwd m0, m3
punpcklwd m7, m2
punpcklwd m1, m4
punpcklwd m6, m5
punpckhdq m4, m0, m7
punpckldq m0, m7
punpckhdq m10, m1, m6
punpckldq m5, m1, m6
punpckhqdq m1, m0, m5
punpcklqdq m0, m5
punpckhqdq m3, m4, m10
punpcklqdq m2, m4, m10
pmulhrsw m0, m12
pmulhrsw m6, m2, [dpw_30274_30274]
pmulhrsw m4, m2, [dpw_12540_12540]
pmulhrsw m7, m1, [dpw_32138_32138]
pmulhrsw m1, [dpw_6392_6392]
pmulhrsw m5, m3, [dpw_m18204_m18204]
pmulhrsw m3, [dpw_27246_27246]
mova m2, m0
SUM_SUB 0, 6, 9
SUM_SUB 2, 4, 9
SUM_SUB 1, 5, 9
SUM_SUB 7, 3, 9
SUM_SUB 3, 5, 9
pmulhrsw m3, m12
pmulhrsw m5, m12
SUM_SUB 0, 7, 9
SUM_SUB 2, 3, 9
SUM_SUB 4, 5, 9
SUM_SUB 6, 1, 9
SWAP 3, 6
SWAP 1, 2
SWAP 2, 4
pxor m12, m12
ADD_STORE_8P_2X 0, 1, 9, 10, 12
lea outputq, [outputq + r3]
ADD_STORE_8P_2X 2, 3, 9, 10, 12
lea outputq, [outputq + r3]
ADD_STORE_8P_2X 4, 5, 9, 10, 12
lea outputq, [outputq + r3]
ADD_STORE_8P_2X 6, 7, 9, 10, 12
RET
%endif
|
