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
|
;
; Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license and patent
; grant that can be found in the LICENSE file in the root of the source
; tree. All contributing project authors may be found in the AUTHORS
; file in the root of the source tree.
;
%include "vpx_ports/x86_abi_support.asm"
;int vp8_regular_quantize_b_impl_sse2(short *coeff_ptr, short *zbin_ptr,
; short *qcoeff_ptr,short *dequant_ptr,
; const int *default_zig_zag, short *round_ptr,
; short *quant_ptr, short *dqcoeff_ptr,
; unsigned short zbin_oq_value,
; short *zbin_boost_ptr);
;
global sym(vp8_regular_quantize_b_impl_sse2)
sym(vp8_regular_quantize_b_impl_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 10
push rsi
push rdi
push rbx
; end prolog
ALIGN_STACK 16, rax
%define abs_minus_zbin_lo 0
%define abs_minus_zbin_hi 16
%define temp_qcoeff_lo 32
%define temp_qcoeff_hi 48
%define save_xmm6 64
%define save_xmm7 80
%define eob 96
%define vp8_regularquantizeb_stack_size eob + 16
sub rsp, vp8_regularquantizeb_stack_size
movdqa DQWORD PTR[rsp + save_xmm6], xmm6
movdqa DQWORD PTR[rsp + save_xmm7], xmm7
mov rdx, arg(0) ;coeff_ptr
mov eax, arg(8) ;zbin_oq_value
mov rcx, arg(1) ;zbin_ptr
movd xmm7, eax
movdqa xmm0, DQWORD PTR[rdx]
movdqa xmm4, DQWORD PTR[rdx + 16]
movdqa xmm1, xmm0
movdqa xmm5, xmm4
psraw xmm0, 15 ;sign of z (aka sz)
psraw xmm4, 15 ;sign of z (aka sz)
pxor xmm1, xmm0
pxor xmm5, xmm4
movdqa xmm2, DQWORD PTR[rcx] ;load zbin_ptr
movdqa xmm3, DQWORD PTR[rcx + 16] ;load zbin_ptr
pshuflw xmm7, xmm7, 0
psubw xmm1, xmm0 ;x = abs(z)
punpcklwd xmm7, xmm7 ;duplicated zbin_oq_value
psubw xmm5, xmm4 ;x = abs(z)
paddw xmm2, xmm7
paddw xmm3, xmm7
psubw xmm1, xmm2 ;sub (zbin_ptr + zbin_oq_value)
psubw xmm5, xmm3 ;sub (zbin_ptr + zbin_oq_value)
mov rdi, arg(5) ;round_ptr
mov rsi, arg(6) ;quant_ptr
movdqa DQWORD PTR[rsp + abs_minus_zbin_lo], xmm1
movdqa DQWORD PTR[rsp + abs_minus_zbin_hi], xmm5
paddw xmm1, xmm2 ;add (zbin_ptr + zbin_oq_value) back
paddw xmm5, xmm3 ;add (zbin_ptr + zbin_oq_value) back
movdqa xmm2, DQWORD PTR[rdi]
movdqa xmm3, DQWORD PTR[rsi]
movdqa xmm6, DQWORD PTR[rdi + 16]
movdqa xmm7, DQWORD PTR[rsi + 16]
paddw xmm1, xmm2
paddw xmm5, xmm6
pmulhw xmm1, xmm3
pmulhw xmm5, xmm7
mov rsi, arg(2) ;qcoeff_ptr
pxor xmm6, xmm6
pxor xmm1, xmm0
pxor xmm5, xmm4
psubw xmm1, xmm0
psubw xmm5, xmm4
movdqa DQWORD PTR[rsp + temp_qcoeff_lo], xmm1
movdqa DQWORD PTR[rsp + temp_qcoeff_hi], xmm5
movdqa DQWORD PTR[rsi], xmm6 ;zero qcoeff
movdqa DQWORD PTR[rsi + 16], xmm6 ;zero qcoeff
xor rax, rax
mov rcx, -1
mov [rsp + eob], rcx
mov rsi, arg(9) ;zbin_boost_ptr
mov rbx, arg(4) ;default_zig_zag
rq_zigzag_loop:
movsxd rcx, DWORD PTR[rbx + rax*4] ;now we have rc
movsx edi, WORD PTR [rsi] ;*zbin_boost_ptr aka zbin
lea rsi, [rsi + 2] ;zbin_boost_ptr++
movsx edx, WORD PTR[rsp + abs_minus_zbin_lo + rcx *2]
sub edx, edi ;x - zbin
jl rq_zigzag_1
mov rdi, arg(2) ;qcoeff_ptr
movsx edx, WORD PTR[rsp + temp_qcoeff_lo + rcx *2]
cmp edx, 0
je rq_zigzag_1
mov WORD PTR[rdi + rcx * 2], dx ;qcoeff_ptr[rc] = temp_qcoeff[rc]
mov rsi, arg(9) ;zbin_boost_ptr
mov [rsp + eob], rax ;eob = i
rq_zigzag_1:
movsxd rcx, DWORD PTR[rbx + rax*4 + 4]
movsx edi, WORD PTR [rsi] ;*zbin_boost_ptr aka zbin
lea rsi, [rsi + 2] ;zbin_boost_ptr++
movsx edx, WORD PTR[rsp + abs_minus_zbin_lo + rcx *2]
lea rax, [rax + 1]
sub edx, edi ;x - zbin
jl rq_zigzag_1a
mov rdi, arg(2) ;qcoeff_ptr
movsx edx, WORD PTR[rsp + temp_qcoeff_lo + rcx *2]
cmp edx, 0
je rq_zigzag_1a
mov WORD PTR[rdi + rcx * 2], dx ;qcoeff_ptr[rc] = temp_qcoeff[rc]
mov rsi, arg(9) ;zbin_boost_ptr
mov [rsp + eob], rax ;eob = i
rq_zigzag_1a:
movsxd rcx, DWORD PTR[rbx + rax*4 + 4]
movsx edi, WORD PTR [rsi] ;*zbin_boost_ptr aka zbin
lea rsi, [rsi + 2] ;zbin_boost_ptr++
movsx edx, WORD PTR[rsp + abs_minus_zbin_lo + rcx *2]
lea rax, [rax + 1]
sub edx, edi ;x - zbin
jl rq_zigzag_1b
mov rdi, arg(2) ;qcoeff_ptr
movsx edx, WORD PTR[rsp + temp_qcoeff_lo + rcx *2]
cmp edx, 0
je rq_zigzag_1b
mov WORD PTR[rdi + rcx * 2], dx ;qcoeff_ptr[rc] = temp_qcoeff[rc]
mov rsi, arg(9) ;zbin_boost_ptr
mov [rsp + eob], rax ;eob = i
rq_zigzag_1b:
movsxd rcx, DWORD PTR[rbx + rax*4 + 4]
movsx edi, WORD PTR [rsi] ;*zbin_boost_ptr aka zbin
lea rsi, [rsi + 2] ;zbin_boost_ptr++
movsx edx, WORD PTR[rsp + abs_minus_zbin_lo + rcx *2]
lea rax, [rax + 1]
sub edx, edi ;x - zbin
jl rq_zigzag_1c
mov rdi, arg(2) ;qcoeff_ptr
movsx edx, WORD PTR[rsp + temp_qcoeff_lo + rcx *2]
cmp edx, 0
je rq_zigzag_1c
mov WORD PTR[rdi + rcx * 2], dx ;qcoeff_ptr[rc] = temp_qcoeff[rc]
mov rsi, arg(9) ;zbin_boost_ptr
mov [rsp + eob], rax ;eob = i
rq_zigzag_1c:
lea rax, [rax + 1]
cmp rax, 16
jl rq_zigzag_loop
mov rdi, arg(2) ;qcoeff_ptr
mov rcx, arg(3) ;dequant_ptr
mov rsi, arg(7) ;dqcoeff_ptr
movdqa xmm2, DQWORD PTR[rdi]
movdqa xmm3, DQWORD PTR[rdi + 16]
movdqa xmm0, DQWORD PTR[rcx]
movdqa xmm1, DQWORD PTR[rcx + 16]
pmullw xmm0, xmm2
pmullw xmm1, xmm3
movdqa DQWORD PTR[rsi], xmm0 ;store dqcoeff
movdqa DQWORD PTR[rsi + 16], xmm1 ;store dqcoeff
mov rax, [rsp + eob]
movdqa xmm6, DQWORD PTR[rsp + save_xmm6]
movdqa xmm7, DQWORD PTR[rsp + save_xmm7]
add rax, 1
add rsp, vp8_regularquantizeb_stack_size
pop rsp
; begin epilog
pop rbx
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret
|
