forked from mozilla/mozjpeg
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathjf3dnflt.asm
320 lines (255 loc) · 8.68 KB
/
jf3dnflt.asm
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
308
309
310
311
312
313
314
315
316
317
318
319
320
;
; jf3dnflt.asm - floating-point FDCT (3DNow!)
;
; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
;
; Based on
; x86 SIMD extension for IJG JPEG library
; Copyright (C) 1999-2006, MIYASAKA Masaru.
; For conditions of distribution and use, see copyright notice in jsimdext.inc
;
; This file should be assembled with NASM (Netwide Assembler),
; can *not* be assembled with Microsoft's MASM or any compatible
; assembler (including Borland's Turbo Assembler).
; NASM is available from http://nasm.sourceforge.net/ or
; http://sourceforge.net/project/showfiles.php?group_id=6208
;
; This file contains a floating-point implementation of the forward DCT
; (Discrete Cosine Transform). The following code is based directly on
; the IJG's original jfdctflt.c; see the jfdctflt.c for more details.
;
; [TAB8]
%include "jsimdext.inc"
%include "jdct.inc"
; --------------------------------------------------------------------------
SECTION SEG_CONST
alignz 16
global EXTN(jconst_fdct_float_3dnow)
EXTN(jconst_fdct_float_3dnow):
PD_0_382 times 2 dd 0.382683432365089771728460
PD_0_707 times 2 dd 0.707106781186547524400844
PD_0_541 times 2 dd 0.541196100146196984399723
PD_1_306 times 2 dd 1.306562964876376527856643
alignz 16
; --------------------------------------------------------------------------
SECTION SEG_TEXT
BITS 32
;
; Perform the forward DCT on one block of samples.
;
; GLOBAL(void)
; jsimd_fdct_float_3dnow (FAST_FLOAT * data)
;
%define data(b) (b)+8 ; FAST_FLOAT * data
%define original_ebp ebp+0
%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
%define WK_NUM 2
align 16
global EXTN(jsimd_fdct_float_3dnow)
EXTN(jsimd_fdct_float_3dnow):
push ebp
mov eax,esp ; eax = original ebp
sub esp, byte 4
and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits
mov [esp],eax
mov ebp,esp ; ebp = aligned ebp
lea esp, [wk(0)]
pushpic ebx
; push ecx ; need not be preserved
; push edx ; need not be preserved
; push esi ; unused
; push edi ; unused
get_GOT ebx ; get GOT address
; ---- Pass 1: process rows.
mov edx, POINTER [data(eax)] ; (FAST_FLOAT *)
mov ecx, DCTSIZE/2
alignx 16,7
.rowloop:
movq mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
movq mm1, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(0,3,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(1,3,edx,SIZEOF_FAST_FLOAT)]
; mm0=(00 01), mm1=(10 11), mm2=(06 07), mm3=(16 17)
movq mm4,mm0 ; transpose coefficients
punpckldq mm0,mm1 ; mm0=(00 10)=data0
punpckhdq mm4,mm1 ; mm4=(01 11)=data1
movq mm5,mm2 ; transpose coefficients
punpckldq mm2,mm3 ; mm2=(06 16)=data6
punpckhdq mm5,mm3 ; mm5=(07 17)=data7
movq mm6,mm4
movq mm7,mm0
pfsub mm4,mm2 ; mm4=data1-data6=tmp6
pfsub mm0,mm5 ; mm0=data0-data7=tmp7
pfadd mm6,mm2 ; mm6=data1+data6=tmp1
pfadd mm7,mm5 ; mm7=data0+data7=tmp0
movq mm1, MMWORD [MMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(0,2,edx,SIZEOF_FAST_FLOAT)]
movq mm5, MMWORD [MMBLOCK(1,2,edx,SIZEOF_FAST_FLOAT)]
; mm1=(02 03), mm3=(12 13), mm2=(04 05), mm5=(14 15)
movq MMWORD [wk(0)], mm4 ; wk(0)=tmp6
movq MMWORD [wk(1)], mm0 ; wk(1)=tmp7
movq mm4,mm1 ; transpose coefficients
punpckldq mm1,mm3 ; mm1=(02 12)=data2
punpckhdq mm4,mm3 ; mm4=(03 13)=data3
movq mm0,mm2 ; transpose coefficients
punpckldq mm2,mm5 ; mm2=(04 14)=data4
punpckhdq mm0,mm5 ; mm0=(05 15)=data5
movq mm3,mm4
movq mm5,mm1
pfadd mm4,mm2 ; mm4=data3+data4=tmp3
pfadd mm1,mm0 ; mm1=data2+data5=tmp2
pfsub mm3,mm2 ; mm3=data3-data4=tmp4
pfsub mm5,mm0 ; mm5=data2-data5=tmp5
; -- Even part
movq mm2,mm7
movq mm0,mm6
pfsub mm7,mm4 ; mm7=tmp13
pfsub mm6,mm1 ; mm6=tmp12
pfadd mm2,mm4 ; mm2=tmp10
pfadd mm0,mm1 ; mm0=tmp11
pfadd mm6,mm7
pfmul mm6,[GOTOFF(ebx,PD_0_707)] ; mm6=z1
movq mm4,mm2
movq mm1,mm7
pfsub mm2,mm0 ; mm2=data4
pfsub mm7,mm6 ; mm7=data6
pfadd mm4,mm0 ; mm4=data0
pfadd mm1,mm6 ; mm1=data2
movq MMWORD [MMBLOCK(0,2,edx,SIZEOF_FAST_FLOAT)], mm2
movq MMWORD [MMBLOCK(0,3,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)], mm1
; -- Odd part
movq mm0, MMWORD [wk(0)] ; mm0=tmp6
movq mm6, MMWORD [wk(1)] ; mm6=tmp7
pfadd mm3,mm5 ; mm3=tmp10
pfadd mm5,mm0 ; mm5=tmp11
pfadd mm0,mm6 ; mm0=tmp12, mm6=tmp7
pfmul mm5,[GOTOFF(ebx,PD_0_707)] ; mm5=z3
movq mm2,mm3 ; mm2=tmp10
pfsub mm3,mm0
pfmul mm3,[GOTOFF(ebx,PD_0_382)] ; mm3=z5
pfmul mm2,[GOTOFF(ebx,PD_0_541)] ; mm2=MULTIPLY(tmp10,FIX_0_54119610)
pfmul mm0,[GOTOFF(ebx,PD_1_306)] ; mm0=MULTIPLY(tmp12,FIX_1_30656296)
pfadd mm2,mm3 ; mm2=z2
pfadd mm0,mm3 ; mm0=z4
movq mm7,mm6
pfsub mm6,mm5 ; mm6=z13
pfadd mm7,mm5 ; mm7=z11
movq mm4,mm6
movq mm1,mm7
pfsub mm6,mm2 ; mm6=data3
pfsub mm7,mm0 ; mm7=data7
pfadd mm4,mm2 ; mm4=data5
pfadd mm1,mm0 ; mm1=data1
movq MMWORD [MMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)], mm6
movq MMWORD [MMBLOCK(1,3,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(1,2,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], mm1
add edx, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT
dec ecx
jnz near .rowloop
; ---- Pass 2: process columns.
mov edx, POINTER [data(eax)] ; (FAST_FLOAT *)
mov ecx, DCTSIZE/2
alignx 16,7
.columnloop:
movq mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
movq mm1, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)]
; mm0=(00 10), mm1=(01 11), mm2=(60 70), mm3=(61 71)
movq mm4,mm0 ; transpose coefficients
punpckldq mm0,mm1 ; mm0=(00 01)=data0
punpckhdq mm4,mm1 ; mm4=(10 11)=data1
movq mm5,mm2 ; transpose coefficients
punpckldq mm2,mm3 ; mm2=(60 61)=data6
punpckhdq mm5,mm3 ; mm5=(70 71)=data7
movq mm6,mm4
movq mm7,mm0
pfsub mm4,mm2 ; mm4=data1-data6=tmp6
pfsub mm0,mm5 ; mm0=data0-data7=tmp7
pfadd mm6,mm2 ; mm6=data1+data6=tmp1
pfadd mm7,mm5 ; mm7=data0+data7=tmp0
movq mm1, MMWORD [MMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)]
movq mm5, MMWORD [MMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)]
; mm1=(20 30), mm3=(21 31), mm2=(40 50), mm5=(41 51)
movq MMWORD [wk(0)], mm4 ; wk(0)=tmp6
movq MMWORD [wk(1)], mm0 ; wk(1)=tmp7
movq mm4,mm1 ; transpose coefficients
punpckldq mm1,mm3 ; mm1=(20 21)=data2
punpckhdq mm4,mm3 ; mm4=(30 31)=data3
movq mm0,mm2 ; transpose coefficients
punpckldq mm2,mm5 ; mm2=(40 41)=data4
punpckhdq mm0,mm5 ; mm0=(50 51)=data5
movq mm3,mm4
movq mm5,mm1
pfadd mm4,mm2 ; mm4=data3+data4=tmp3
pfadd mm1,mm0 ; mm1=data2+data5=tmp2
pfsub mm3,mm2 ; mm3=data3-data4=tmp4
pfsub mm5,mm0 ; mm5=data2-data5=tmp5
; -- Even part
movq mm2,mm7
movq mm0,mm6
pfsub mm7,mm4 ; mm7=tmp13
pfsub mm6,mm1 ; mm6=tmp12
pfadd mm2,mm4 ; mm2=tmp10
pfadd mm0,mm1 ; mm0=tmp11
pfadd mm6,mm7
pfmul mm6,[GOTOFF(ebx,PD_0_707)] ; mm6=z1
movq mm4,mm2
movq mm1,mm7
pfsub mm2,mm0 ; mm2=data4
pfsub mm7,mm6 ; mm7=data6
pfadd mm4,mm0 ; mm4=data0
pfadd mm1,mm6 ; mm1=data2
movq MMWORD [MMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)], mm2
movq MMWORD [MMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)], mm1
; -- Odd part
movq mm0, MMWORD [wk(0)] ; mm0=tmp6
movq mm6, MMWORD [wk(1)] ; mm6=tmp7
pfadd mm3,mm5 ; mm3=tmp10
pfadd mm5,mm0 ; mm5=tmp11
pfadd mm0,mm6 ; mm0=tmp12, mm6=tmp7
pfmul mm5,[GOTOFF(ebx,PD_0_707)] ; mm5=z3
movq mm2,mm3 ; mm2=tmp10
pfsub mm3,mm0
pfmul mm3,[GOTOFF(ebx,PD_0_382)] ; mm3=z5
pfmul mm2,[GOTOFF(ebx,PD_0_541)] ; mm2=MULTIPLY(tmp10,FIX_0_54119610)
pfmul mm0,[GOTOFF(ebx,PD_1_306)] ; mm0=MULTIPLY(tmp12,FIX_1_30656296)
pfadd mm2,mm3 ; mm2=z2
pfadd mm0,mm3 ; mm0=z4
movq mm7,mm6
pfsub mm6,mm5 ; mm6=z13
pfadd mm7,mm5 ; mm7=z11
movq mm4,mm6
movq mm1,mm7
pfsub mm6,mm2 ; mm6=data3
pfsub mm7,mm0 ; mm7=data7
pfadd mm4,mm2 ; mm4=data5
pfadd mm1,mm0 ; mm1=data1
movq MMWORD [MMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)], mm6
movq MMWORD [MMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], mm1
add edx, byte 2*SIZEOF_FAST_FLOAT
dec ecx
jnz near .columnloop
femms ; empty MMX/3DNow! state
; pop edi ; unused
; pop esi ; unused
; pop edx ; need not be preserved
; pop ecx ; need not be preserved
poppic ebx
mov esp,ebp ; esp <- aligned ebp
pop esp ; esp <- original ebp
pop ebp
ret
; For some reason, the OS X linker does not honor the request to align the
; segment unless we do this.
align 16