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gerrit-public.fairphone.software / platform / external / libjpeg-turbo / b2817f52517361caff3dbab7373abc1b791f3246 / . / simd / jfdctflt-sse.asm
blob: c2f61c83bc360916a770058a44268d4893937582 [file] [log] [blame]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]1;
DRC72130be2014-05-09 20:14:26 +0000[diff] [blame]2; jfdctflt.asm - floating-point FDCT (SSE)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]3;
Pierre Ossman018fc422009-03-09 13:31:56 +0000[diff] [blame]4; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
5;
6; Based on
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]7; x86 SIMD extension for IJG JPEG library
8; Copyright (C) 1999-2006, MIYASAKA Masaru.
9; For conditions of distribution and use, see copyright notice in jsimdext.inc
10;
11; This file should be assembled with NASM (Netwide Assembler),
12; can *not* be assembled with Microsoft's MASM or any compatible
13; assembler (including Borland's Turbo Assembler).
14; NASM is available from http://nasm.sourceforge.net/ or
15; http://sourceforge.net/project/showfiles.php?group_id=6208
16;
17; This file contains a floating-point implementation of the forward DCT
18; (Discrete Cosine Transform). The following code is based directly on
19; the IJG's original jfdctflt.c; see the jfdctflt.c for more details.
20;
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]21; [TAB8]
22
Pierre Ossman3a65ef42009-03-16 13:34:18 +0000[diff] [blame]23%include "jsimdext.inc"
24%include "jdct.inc"
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]25
26; --------------------------------------------------------------------------
27
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]28%macro unpcklps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(0 1 4 5)
29 shufps %1,%2,0x44
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]30%endmacro
31
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]32%macro unpckhps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7)
33 shufps %1,%2,0xEE
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]34%endmacro
35
36; --------------------------------------------------------------------------
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]37 SECTION SEG_CONST
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]38
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]39 alignz 16
40 global EXTN(jconst_fdct_float_sse)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]41
42EXTN(jconst_fdct_float_sse):
43
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]44PD_0_382 times 4 dd 0.382683432365089771728460
45PD_0_707 times 4 dd 0.707106781186547524400844
46PD_0_541 times 4 dd 0.541196100146196984399723
47PD_1_306 times 4 dd 1.306562964876376527856643
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]48
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]49 alignz 16
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]50
51; --------------------------------------------------------------------------
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]52 SECTION SEG_TEXT
53 BITS 32
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]54;
55; Perform the forward DCT on one block of samples.
56;
57; GLOBAL(void)
DRCbd498032016-02-19 08:53:33 -0600[diff] [blame]58; jsimd_fdct_float_sse (FAST_FLOAT *data)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]59;
60
DRCbd498032016-02-19 08:53:33 -0600[diff] [blame]61%define data(b) (b)+8 ; FAST_FLOAT *data
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]62
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]63%define original_ebp ebp+0
64%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
65%define WK_NUM 2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]66
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]67 align 16
68 global EXTN(jsimd_fdct_float_sse)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]69
Pierre Ossman018fc422009-03-09 13:31:56 +0000[diff] [blame]70EXTN(jsimd_fdct_float_sse):
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]71 push ebp
72 mov eax,esp ; eax = original ebp
73 sub esp, byte 4
74 and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
75 mov [esp],eax
76 mov ebp,esp ; ebp = aligned ebp
77 lea esp, [wk(0)]
78 pushpic ebx
79; push ecx ; need not be preserved
80; push edx ; need not be preserved
81; push esi ; unused
82; push edi ; unused
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]83
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]84 get_GOT ebx ; get GOT address
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]85
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]86 ; ---- Pass 1: process rows.
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]87
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]88 mov edx, POINTER [data(eax)] ; (FAST_FLOAT *)
89 mov ecx, DCTSIZE/4
90 alignx 16,7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]91.rowloop:
92
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]93 movaps xmm0, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)]
94 movaps xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)]
95 movaps xmm2, XMMWORD [XMMBLOCK(2,1,edx,SIZEOF_FAST_FLOAT)]
96 movaps xmm3, XMMWORD [XMMBLOCK(3,1,edx,SIZEOF_FAST_FLOAT)]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]97
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]98 ; xmm0=(20 21 22 23), xmm2=(24 25 26 27)
99 ; xmm1=(30 31 32 33), xmm3=(34 35 36 37)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]100
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]101 movaps xmm4,xmm0 ; transpose coefficients(phase 1)
102 unpcklps xmm0,xmm1 ; xmm0=(20 30 21 31)
103 unpckhps xmm4,xmm1 ; xmm4=(22 32 23 33)
104 movaps xmm5,xmm2 ; transpose coefficients(phase 1)
105 unpcklps xmm2,xmm3 ; xmm2=(24 34 25 35)
106 unpckhps xmm5,xmm3 ; xmm5=(26 36 27 37)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]107
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]108 movaps xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
109 movaps xmm7, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
110 movaps xmm1, XMMWORD [XMMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)]
111 movaps xmm3, XMMWORD [XMMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]112
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]113 ; xmm6=(00 01 02 03), xmm1=(04 05 06 07)
114 ; xmm7=(10 11 12 13), xmm3=(14 15 16 17)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]115
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]116 movaps XMMWORD [wk(0)], xmm4 ; wk(0)=(22 32 23 33)
117 movaps XMMWORD [wk(1)], xmm2 ; wk(1)=(24 34 25 35)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]118
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]119 movaps xmm4,xmm6 ; transpose coefficients(phase 1)
120 unpcklps xmm6,xmm7 ; xmm6=(00 10 01 11)
121 unpckhps xmm4,xmm7 ; xmm4=(02 12 03 13)
122 movaps xmm2,xmm1 ; transpose coefficients(phase 1)
123 unpcklps xmm1,xmm3 ; xmm1=(04 14 05 15)
124 unpckhps xmm2,xmm3 ; xmm2=(06 16 07 17)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]125
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]126 movaps xmm7,xmm6 ; transpose coefficients(phase 2)
127 unpcklps2 xmm6,xmm0 ; xmm6=(00 10 20 30)=data0
128 unpckhps2 xmm7,xmm0 ; xmm7=(01 11 21 31)=data1
129 movaps xmm3,xmm2 ; transpose coefficients(phase 2)
130 unpcklps2 xmm2,xmm5 ; xmm2=(06 16 26 36)=data6
131 unpckhps2 xmm3,xmm5 ; xmm3=(07 17 27 37)=data7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]132
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]133 movaps xmm0,xmm7
134 movaps xmm5,xmm6
135 subps xmm7,xmm2 ; xmm7=data1-data6=tmp6
136 subps xmm6,xmm3 ; xmm6=data0-data7=tmp7
137 addps xmm0,xmm2 ; xmm0=data1+data6=tmp1
138 addps xmm5,xmm3 ; xmm5=data0+data7=tmp0
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]139
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]140 movaps xmm2, XMMWORD [wk(0)] ; xmm2=(22 32 23 33)
141 movaps xmm3, XMMWORD [wk(1)] ; xmm3=(24 34 25 35)
142 movaps XMMWORD [wk(0)], xmm7 ; wk(0)=tmp6
143 movaps XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]144
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]145 movaps xmm7,xmm4 ; transpose coefficients(phase 2)
146 unpcklps2 xmm4,xmm2 ; xmm4=(02 12 22 32)=data2
147 unpckhps2 xmm7,xmm2 ; xmm7=(03 13 23 33)=data3
148 movaps xmm6,xmm1 ; transpose coefficients(phase 2)
149 unpcklps2 xmm1,xmm3 ; xmm1=(04 14 24 34)=data4
150 unpckhps2 xmm6,xmm3 ; xmm6=(05 15 25 35)=data5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]151
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]152 movaps xmm2,xmm7
153 movaps xmm3,xmm4
154 addps xmm7,xmm1 ; xmm7=data3+data4=tmp3
155 addps xmm4,xmm6 ; xmm4=data2+data5=tmp2
156 subps xmm2,xmm1 ; xmm2=data3-data4=tmp4
157 subps xmm3,xmm6 ; xmm3=data2-data5=tmp5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]158
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]159 ; -- Even part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]160
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]161 movaps xmm1,xmm5
162 movaps xmm6,xmm0
163 subps xmm5,xmm7 ; xmm5=tmp13
164 subps xmm0,xmm4 ; xmm0=tmp12
165 addps xmm1,xmm7 ; xmm1=tmp10
166 addps xmm6,xmm4 ; xmm6=tmp11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]167
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]168 addps xmm0,xmm5
169 mulps xmm0,[GOTOFF(ebx,PD_0_707)] ; xmm0=z1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]170
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]171 movaps xmm7,xmm1
172 movaps xmm4,xmm5
173 subps xmm1,xmm6 ; xmm1=data4
174 subps xmm5,xmm0 ; xmm5=data6
175 addps xmm7,xmm6 ; xmm7=data0
176 addps xmm4,xmm0 ; xmm4=data2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]177
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]178 movaps XMMWORD [XMMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)], xmm1
179 movaps XMMWORD [XMMBLOCK(2,1,edx,SIZEOF_FAST_FLOAT)], xmm5
180 movaps XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], xmm7
181 movaps XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)], xmm4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]182
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]183 ; -- Odd part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]184
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]185 movaps xmm6, XMMWORD [wk(0)] ; xmm6=tmp6
186 movaps xmm0, XMMWORD [wk(1)] ; xmm0=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]187
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]188 addps xmm2,xmm3 ; xmm2=tmp10
189 addps xmm3,xmm6 ; xmm3=tmp11
190 addps xmm6,xmm0 ; xmm6=tmp12, xmm0=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]191
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]192 mulps xmm3,[GOTOFF(ebx,PD_0_707)] ; xmm3=z3
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]193
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]194 movaps xmm1,xmm2 ; xmm1=tmp10
195 subps xmm2,xmm6
196 mulps xmm2,[GOTOFF(ebx,PD_0_382)] ; xmm2=z5
197 mulps xmm1,[GOTOFF(ebx,PD_0_541)] ; xmm1=MULTIPLY(tmp10,FIX_0_541196)
198 mulps xmm6,[GOTOFF(ebx,PD_1_306)] ; xmm6=MULTIPLY(tmp12,FIX_1_306562)
199 addps xmm1,xmm2 ; xmm1=z2
200 addps xmm6,xmm2 ; xmm6=z4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]201
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]202 movaps xmm5,xmm0
203 subps xmm0,xmm3 ; xmm0=z13
204 addps xmm5,xmm3 ; xmm5=z11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]205
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]206 movaps xmm7,xmm0
207 movaps xmm4,xmm5
208 subps xmm0,xmm1 ; xmm0=data3
209 subps xmm5,xmm6 ; xmm5=data7
210 addps xmm7,xmm1 ; xmm7=data5
211 addps xmm4,xmm6 ; xmm4=data1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]212
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]213 movaps XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)], xmm0
214 movaps XMMWORD [XMMBLOCK(3,1,edx,SIZEOF_FAST_FLOAT)], xmm5
215 movaps XMMWORD [XMMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)], xmm7
216 movaps XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], xmm4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]217
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]218 add edx, 4*DCTSIZE*SIZEOF_FAST_FLOAT
219 dec ecx
220 jnz near .rowloop
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]221
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]222 ; ---- Pass 2: process columns.
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]223
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]224 mov edx, POINTER [data(eax)] ; (FAST_FLOAT *)
225 mov ecx, DCTSIZE/4
226 alignx 16,7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]227.columnloop:
228
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]229 movaps xmm0, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)]
230 movaps xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)]
231 movaps xmm2, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)]
232 movaps xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]233
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]234 ; xmm0=(02 12 22 32), xmm2=(42 52 62 72)
235 ; xmm1=(03 13 23 33), xmm3=(43 53 63 73)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]236
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]237 movaps xmm4,xmm0 ; transpose coefficients(phase 1)
238 unpcklps xmm0,xmm1 ; xmm0=(02 03 12 13)
239 unpckhps xmm4,xmm1 ; xmm4=(22 23 32 33)
240 movaps xmm5,xmm2 ; transpose coefficients(phase 1)
241 unpcklps xmm2,xmm3 ; xmm2=(42 43 52 53)
242 unpckhps xmm5,xmm3 ; xmm5=(62 63 72 73)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]243
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]244 movaps xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
245 movaps xmm7, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
246 movaps xmm1, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)]
247 movaps xmm3, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]248
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]249 ; xmm6=(00 10 20 30), xmm1=(40 50 60 70)
250 ; xmm7=(01 11 21 31), xmm3=(41 51 61 71)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]251
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]252 movaps XMMWORD [wk(0)], xmm4 ; wk(0)=(22 23 32 33)
253 movaps XMMWORD [wk(1)], xmm2 ; wk(1)=(42 43 52 53)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]254
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]255 movaps xmm4,xmm6 ; transpose coefficients(phase 1)
256 unpcklps xmm6,xmm7 ; xmm6=(00 01 10 11)
257 unpckhps xmm4,xmm7 ; xmm4=(20 21 30 31)
258 movaps xmm2,xmm1 ; transpose coefficients(phase 1)
259 unpcklps xmm1,xmm3 ; xmm1=(40 41 50 51)
260 unpckhps xmm2,xmm3 ; xmm2=(60 61 70 71)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]261
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]262 movaps xmm7,xmm6 ; transpose coefficients(phase 2)
263 unpcklps2 xmm6,xmm0 ; xmm6=(00 01 02 03)=data0
264 unpckhps2 xmm7,xmm0 ; xmm7=(10 11 12 13)=data1
265 movaps xmm3,xmm2 ; transpose coefficients(phase 2)
266 unpcklps2 xmm2,xmm5 ; xmm2=(60 61 62 63)=data6
267 unpckhps2 xmm3,xmm5 ; xmm3=(70 71 72 73)=data7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]268
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]269 movaps xmm0,xmm7
270 movaps xmm5,xmm6
271 subps xmm7,xmm2 ; xmm7=data1-data6=tmp6
272 subps xmm6,xmm3 ; xmm6=data0-data7=tmp7
273 addps xmm0,xmm2 ; xmm0=data1+data6=tmp1
274 addps xmm5,xmm3 ; xmm5=data0+data7=tmp0
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]275
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]276 movaps xmm2, XMMWORD [wk(0)] ; xmm2=(22 23 32 33)
277 movaps xmm3, XMMWORD [wk(1)] ; xmm3=(42 43 52 53)
278 movaps XMMWORD [wk(0)], xmm7 ; wk(0)=tmp6
279 movaps XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]280
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]281 movaps xmm7,xmm4 ; transpose coefficients(phase 2)
282 unpcklps2 xmm4,xmm2 ; xmm4=(20 21 22 23)=data2
283 unpckhps2 xmm7,xmm2 ; xmm7=(30 31 32 33)=data3
284 movaps xmm6,xmm1 ; transpose coefficients(phase 2)
285 unpcklps2 xmm1,xmm3 ; xmm1=(40 41 42 43)=data4
286 unpckhps2 xmm6,xmm3 ; xmm6=(50 51 52 53)=data5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]287
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]288 movaps xmm2,xmm7
289 movaps xmm3,xmm4
290 addps xmm7,xmm1 ; xmm7=data3+data4=tmp3
291 addps xmm4,xmm6 ; xmm4=data2+data5=tmp2
292 subps xmm2,xmm1 ; xmm2=data3-data4=tmp4
293 subps xmm3,xmm6 ; xmm3=data2-data5=tmp5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]294
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]295 ; -- Even part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]296
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]297 movaps xmm1,xmm5
298 movaps xmm6,xmm0
299 subps xmm5,xmm7 ; xmm5=tmp13
300 subps xmm0,xmm4 ; xmm0=tmp12
301 addps xmm1,xmm7 ; xmm1=tmp10
302 addps xmm6,xmm4 ; xmm6=tmp11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]303
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]304 addps xmm0,xmm5
305 mulps xmm0,[GOTOFF(ebx,PD_0_707)] ; xmm0=z1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]306
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]307 movaps xmm7,xmm1
308 movaps xmm4,xmm5
309 subps xmm1,xmm6 ; xmm1=data4
310 subps xmm5,xmm0 ; xmm5=data6
311 addps xmm7,xmm6 ; xmm7=data0
312 addps xmm4,xmm0 ; xmm4=data2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]313
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]314 movaps XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)], xmm1
315 movaps XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)], xmm5
316 movaps XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], xmm7
317 movaps XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)], xmm4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]318
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]319 ; -- Odd part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]320
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]321 movaps xmm6, XMMWORD [wk(0)] ; xmm6=tmp6
322 movaps xmm0, XMMWORD [wk(1)] ; xmm0=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]323
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]324 addps xmm2,xmm3 ; xmm2=tmp10
325 addps xmm3,xmm6 ; xmm3=tmp11
326 addps xmm6,xmm0 ; xmm6=tmp12, xmm0=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]327
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]328 mulps xmm3,[GOTOFF(ebx,PD_0_707)] ; xmm3=z3
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]329
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]330 movaps xmm1,xmm2 ; xmm1=tmp10
331 subps xmm2,xmm6
332 mulps xmm2,[GOTOFF(ebx,PD_0_382)] ; xmm2=z5
333 mulps xmm1,[GOTOFF(ebx,PD_0_541)] ; xmm1=MULTIPLY(tmp10,FIX_0_541196)
334 mulps xmm6,[GOTOFF(ebx,PD_1_306)] ; xmm6=MULTIPLY(tmp12,FIX_1_306562)
335 addps xmm1,xmm2 ; xmm1=z2
336 addps xmm6,xmm2 ; xmm6=z4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]337
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]338 movaps xmm5,xmm0
339 subps xmm0,xmm3 ; xmm0=z13
340 addps xmm5,xmm3 ; xmm5=z11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]341
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]342 movaps xmm7,xmm0
343 movaps xmm4,xmm5
344 subps xmm0,xmm1 ; xmm0=data3
345 subps xmm5,xmm6 ; xmm5=data7
346 addps xmm7,xmm1 ; xmm7=data5
347 addps xmm4,xmm6 ; xmm4=data1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]348
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]349 movaps XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)], xmm0
350 movaps XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)], xmm5
351 movaps XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)], xmm7
352 movaps XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], xmm4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]353
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]354 add edx, byte 4*SIZEOF_FAST_FLOAT
355 dec ecx
356 jnz near .columnloop
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]357
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]358; pop edi ; unused
359; pop esi ; unused
360; pop edx ; need not be preserved
361; pop ecx ; need not be preserved
362 poppic ebx
363 mov esp,ebp ; esp <- aligned ebp
364 pop esp ; esp <- original ebp
365 pop ebp
366 ret
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]367
DRC132b5fd2009-10-08 09:04:56 +0000[diff] [blame]368; For some reason, the OS X linker does not honor the request to align the
369; segment unless we do this.
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]370 align 16