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gerrit-public.fairphone.software / platform / external / libjpeg-turbo / 72130be99f592adf302fb13682eea7b87352026c / . / simd / i386-sse2 / jfdctfst.asm
blob: e6e4b72f697e320de06ad3d1fcd434e234de4962 [file] [log] [blame]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]1;
DRC72130be2014-05-09 20:14:26 +0000[diff] [blame^]2; jfdctfst.asm - fast integer FDCT (SSE2)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]3;
Pierre Ossmaneea72152009-03-09 13:34:17 +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 fast, not so accurate integer implementation of
18; the forward DCT (Discrete Cosine Transform). The following code is
19; based directly on the IJG's original jfdctfst.c; see the jfdctfst.c
20; for more details.
21;
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]22; [TAB8]
23
Pierre Ossman3a65ef42009-03-16 13:34:18 +0000[diff] [blame]24%include "jsimdext.inc"
25%include "jdct.inc"
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]26
27; --------------------------------------------------------------------------
28
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]29%define CONST_BITS 8 ; 14 is also OK.
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]30
31%if CONST_BITS == 8
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]32F_0_382 equ 98 ; FIX(0.382683433)
33F_0_541 equ 139 ; FIX(0.541196100)
34F_0_707 equ 181 ; FIX(0.707106781)
35F_1_306 equ 334 ; FIX(1.306562965)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]36%else
37; NASM cannot do compile-time arithmetic on floating-point constants.
38%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n))
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]39F_0_382 equ DESCALE( 410903207,30-CONST_BITS) ; FIX(0.382683433)
40F_0_541 equ DESCALE( 581104887,30-CONST_BITS) ; FIX(0.541196100)
41F_0_707 equ DESCALE( 759250124,30-CONST_BITS) ; FIX(0.707106781)
42F_1_306 equ DESCALE(1402911301,30-CONST_BITS) ; FIX(1.306562965)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]43%endif
44
45; --------------------------------------------------------------------------
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]46 SECTION SEG_CONST
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]47
48; PRE_MULTIPLY_SCALE_BITS <= 2 (to avoid overflow)
49; CONST_BITS + CONST_SHIFT + PRE_MULTIPLY_SCALE_BITS == 16 (for pmulhw)
50
51%define PRE_MULTIPLY_SCALE_BITS 2
52%define CONST_SHIFT (16 - PRE_MULTIPLY_SCALE_BITS - CONST_BITS)
53
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]54 alignz 16
55 global EXTN(jconst_fdct_ifast_sse2)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]56
57EXTN(jconst_fdct_ifast_sse2):
58
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]59PW_F0707 times 8 dw F_0_707 << CONST_SHIFT
60PW_F0382 times 8 dw F_0_382 << CONST_SHIFT
61PW_F0541 times 8 dw F_0_541 << CONST_SHIFT
62PW_F1306 times 8 dw F_1_306 << CONST_SHIFT
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]63
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]64 alignz 16
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]65
66; --------------------------------------------------------------------------
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]67 SECTION SEG_TEXT
68 BITS 32
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]69;
70; Perform the forward DCT on one block of samples.
71;
72; GLOBAL(void)
Pierre Ossmaneea72152009-03-09 13:34:17 +0000[diff] [blame]73; jsimd_fdct_ifast_sse2 (DCTELEM * data)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]74;
75
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]76%define data(b) (b)+8 ; DCTELEM * data
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]77
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]78%define original_ebp ebp+0
79%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
80%define WK_NUM 2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]81
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]82 align 16
83 global EXTN(jsimd_fdct_ifast_sse2)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]84
Pierre Ossmaneea72152009-03-09 13:34:17 +0000[diff] [blame]85EXTN(jsimd_fdct_ifast_sse2):
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]86 push ebp
87 mov eax,esp ; eax = original ebp
88 sub esp, byte 4
89 and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
90 mov [esp],eax
91 mov ebp,esp ; ebp = aligned ebp
92 lea esp, [wk(0)]
93 pushpic ebx
94; push ecx ; unused
95; push edx ; need not be preserved
96; push esi ; unused
97; push edi ; unused
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]98
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]99 get_GOT ebx ; get GOT address
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]100
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]101 ; ---- Pass 1: process rows.
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]102
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]103 mov edx, POINTER [data(eax)] ; (DCTELEM *)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]104
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]105 movdqa xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_DCTELEM)]
106 movdqa xmm1, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_DCTELEM)]
107 movdqa xmm2, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_DCTELEM)]
108 movdqa xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_DCTELEM)]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]109
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]110 ; xmm0=(00 01 02 03 04 05 06 07), xmm2=(20 21 22 23 24 25 26 27)
111 ; xmm1=(10 11 12 13 14 15 16 17), xmm3=(30 31 32 33 34 35 36 37)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]112
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]113 movdqa xmm4,xmm0 ; transpose coefficients(phase 1)
114 punpcklwd xmm0,xmm1 ; xmm0=(00 10 01 11 02 12 03 13)
115 punpckhwd xmm4,xmm1 ; xmm4=(04 14 05 15 06 16 07 17)
116 movdqa xmm5,xmm2 ; transpose coefficients(phase 1)
117 punpcklwd xmm2,xmm3 ; xmm2=(20 30 21 31 22 32 23 33)
118 punpckhwd xmm5,xmm3 ; xmm5=(24 34 25 35 26 36 27 37)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]119
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]120 movdqa xmm6, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_DCTELEM)]
121 movdqa xmm7, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_DCTELEM)]
122 movdqa xmm1, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_DCTELEM)]
123 movdqa xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_DCTELEM)]
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]124
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]125 ; xmm6=( 4 12 20 28 36 44 52 60), xmm1=( 6 14 22 30 38 46 54 62)
126 ; xmm7=( 5 13 21 29 37 45 53 61), xmm3=( 7 15 23 31 39 47 55 63)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]127
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]128 movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=(20 30 21 31 22 32 23 33)
129 movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(24 34 25 35 26 36 27 37)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]130
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]131 movdqa xmm2,xmm6 ; transpose coefficients(phase 1)
132 punpcklwd xmm6,xmm7 ; xmm6=(40 50 41 51 42 52 43 53)
133 punpckhwd xmm2,xmm7 ; xmm2=(44 54 45 55 46 56 47 57)
134 movdqa xmm5,xmm1 ; transpose coefficients(phase 1)
135 punpcklwd xmm1,xmm3 ; xmm1=(60 70 61 71 62 72 63 73)
136 punpckhwd xmm5,xmm3 ; xmm5=(64 74 65 75 66 76 67 77)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]137
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]138 movdqa xmm7,xmm6 ; transpose coefficients(phase 2)
139 punpckldq xmm6,xmm1 ; xmm6=(40 50 60 70 41 51 61 71)
140 punpckhdq xmm7,xmm1 ; xmm7=(42 52 62 72 43 53 63 73)
141 movdqa xmm3,xmm2 ; transpose coefficients(phase 2)
142 punpckldq xmm2,xmm5 ; xmm2=(44 54 64 74 45 55 65 75)
143 punpckhdq xmm3,xmm5 ; xmm3=(46 56 66 76 47 57 67 77)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]144
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]145 movdqa xmm1, XMMWORD [wk(0)] ; xmm1=(20 30 21 31 22 32 23 33)
146 movdqa xmm5, XMMWORD [wk(1)] ; xmm5=(24 34 25 35 26 36 27 37)
147 movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=(42 52 62 72 43 53 63 73)
148 movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=(44 54 64 74 45 55 65 75)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]149
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]150 movdqa xmm7,xmm0 ; transpose coefficients(phase 2)
151 punpckldq xmm0,xmm1 ; xmm0=(00 10 20 30 01 11 21 31)
152 punpckhdq xmm7,xmm1 ; xmm7=(02 12 22 32 03 13 23 33)
153 movdqa xmm2,xmm4 ; transpose coefficients(phase 2)
154 punpckldq xmm4,xmm5 ; xmm4=(04 14 24 34 05 15 25 35)
155 punpckhdq xmm2,xmm5 ; xmm2=(06 16 26 36 07 17 27 37)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]156
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]157 movdqa xmm1,xmm0 ; transpose coefficients(phase 3)
158 punpcklqdq xmm0,xmm6 ; xmm0=(00 10 20 30 40 50 60 70)=data0
159 punpckhqdq xmm1,xmm6 ; xmm1=(01 11 21 31 41 51 61 71)=data1
160 movdqa xmm5,xmm2 ; transpose coefficients(phase 3)
161 punpcklqdq xmm2,xmm3 ; xmm2=(06 16 26 36 46 56 66 76)=data6
162 punpckhqdq xmm5,xmm3 ; xmm5=(07 17 27 37 47 57 67 77)=data7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]163
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]164 movdqa xmm6,xmm1
165 movdqa xmm3,xmm0
166 psubw xmm1,xmm2 ; xmm1=data1-data6=tmp6
167 psubw xmm0,xmm5 ; xmm0=data0-data7=tmp7
168 paddw xmm6,xmm2 ; xmm6=data1+data6=tmp1
169 paddw xmm3,xmm5 ; xmm3=data0+data7=tmp0
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]170
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]171 movdqa xmm2, XMMWORD [wk(0)] ; xmm2=(42 52 62 72 43 53 63 73)
172 movdqa xmm5, XMMWORD [wk(1)] ; xmm5=(44 54 64 74 45 55 65 75)
173 movdqa XMMWORD [wk(0)], xmm1 ; wk(0)=tmp6
174 movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]175
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]176 movdqa xmm1,xmm7 ; transpose coefficients(phase 3)
177 punpcklqdq xmm7,xmm2 ; xmm7=(02 12 22 32 42 52 62 72)=data2
178 punpckhqdq xmm1,xmm2 ; xmm1=(03 13 23 33 43 53 63 73)=data3
179 movdqa xmm0,xmm4 ; transpose coefficients(phase 3)
180 punpcklqdq xmm4,xmm5 ; xmm4=(04 14 24 34 44 54 64 74)=data4
181 punpckhqdq xmm0,xmm5 ; xmm0=(05 15 25 35 45 55 65 75)=data5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]182
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]183 movdqa xmm2,xmm1
184 movdqa xmm5,xmm7
185 paddw xmm1,xmm4 ; xmm1=data3+data4=tmp3
186 paddw xmm7,xmm0 ; xmm7=data2+data5=tmp2
187 psubw xmm2,xmm4 ; xmm2=data3-data4=tmp4
188 psubw xmm5,xmm0 ; xmm5=data2-data5=tmp5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]189
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]190 ; -- Even part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]191
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]192 movdqa xmm4,xmm3
193 movdqa xmm0,xmm6
194 psubw xmm3,xmm1 ; xmm3=tmp13
195 psubw xmm6,xmm7 ; xmm6=tmp12
196 paddw xmm4,xmm1 ; xmm4=tmp10
197 paddw xmm0,xmm7 ; xmm0=tmp11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]198
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]199 paddw xmm6,xmm3
200 psllw xmm6,PRE_MULTIPLY_SCALE_BITS
201 pmulhw xmm6,[GOTOFF(ebx,PW_F0707)] ; xmm6=z1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]202
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]203 movdqa xmm1,xmm4
204 movdqa xmm7,xmm3
205 psubw xmm4,xmm0 ; xmm4=data4
206 psubw xmm3,xmm6 ; xmm3=data6
207 paddw xmm1,xmm0 ; xmm1=data0
208 paddw xmm7,xmm6 ; xmm7=data2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]209
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]210 movdqa xmm0, XMMWORD [wk(0)] ; xmm0=tmp6
211 movdqa xmm6, XMMWORD [wk(1)] ; xmm6=tmp7
212 movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=data4
213 movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=data6
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]214
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]215 ; -- Odd part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]216
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]217 paddw xmm2,xmm5 ; xmm2=tmp10
218 paddw xmm5,xmm0 ; xmm5=tmp11
219 paddw xmm0,xmm6 ; xmm0=tmp12, xmm6=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]220
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]221 psllw xmm2,PRE_MULTIPLY_SCALE_BITS
222 psllw xmm0,PRE_MULTIPLY_SCALE_BITS
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]223
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]224 psllw xmm5,PRE_MULTIPLY_SCALE_BITS
225 pmulhw xmm5,[GOTOFF(ebx,PW_F0707)] ; xmm5=z3
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]226
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]227 movdqa xmm4,xmm2 ; xmm4=tmp10
228 psubw xmm2,xmm0
229 pmulhw xmm2,[GOTOFF(ebx,PW_F0382)] ; xmm2=z5
230 pmulhw xmm4,[GOTOFF(ebx,PW_F0541)] ; xmm4=MULTIPLY(tmp10,FIX_0_541196)
231 pmulhw xmm0,[GOTOFF(ebx,PW_F1306)] ; xmm0=MULTIPLY(tmp12,FIX_1_306562)
232 paddw xmm4,xmm2 ; xmm4=z2
233 paddw xmm0,xmm2 ; xmm0=z4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]234
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]235 movdqa xmm3,xmm6
236 psubw xmm6,xmm5 ; xmm6=z13
237 paddw xmm3,xmm5 ; xmm3=z11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]238
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]239 movdqa xmm2,xmm6
240 movdqa xmm5,xmm3
241 psubw xmm6,xmm4 ; xmm6=data3
242 psubw xmm3,xmm0 ; xmm3=data7
243 paddw xmm2,xmm4 ; xmm2=data5
244 paddw xmm5,xmm0 ; xmm5=data1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]245
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]246 ; ---- Pass 2: process columns.
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]247
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]248; mov edx, POINTER [data(eax)] ; (DCTELEM *)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]249
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]250 ; xmm1=(00 10 20 30 40 50 60 70), xmm7=(02 12 22 32 42 52 62 72)
251 ; xmm5=(01 11 21 31 41 51 61 71), xmm6=(03 13 23 33 43 53 63 73)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]252
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]253 movdqa xmm4,xmm1 ; transpose coefficients(phase 1)
254 punpcklwd xmm1,xmm5 ; xmm1=(00 01 10 11 20 21 30 31)
255 punpckhwd xmm4,xmm5 ; xmm4=(40 41 50 51 60 61 70 71)
256 movdqa xmm0,xmm7 ; transpose coefficients(phase 1)
257 punpcklwd xmm7,xmm6 ; xmm7=(02 03 12 13 22 23 32 33)
258 punpckhwd xmm0,xmm6 ; xmm0=(42 43 52 53 62 63 72 73)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]259
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]260 movdqa xmm5, XMMWORD [wk(0)] ; xmm5=col4
261 movdqa xmm6, XMMWORD [wk(1)] ; xmm6=col6
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]262
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]263 ; xmm5=(04 14 24 34 44 54 64 74), xmm6=(06 16 26 36 46 56 66 76)
264 ; xmm2=(05 15 25 35 45 55 65 75), xmm3=(07 17 27 37 47 57 67 77)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]265
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]266 movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=(02 03 12 13 22 23 32 33)
267 movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=(42 43 52 53 62 63 72 73)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]268
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]269 movdqa xmm7,xmm5 ; transpose coefficients(phase 1)
270 punpcklwd xmm5,xmm2 ; xmm5=(04 05 14 15 24 25 34 35)
271 punpckhwd xmm7,xmm2 ; xmm7=(44 45 54 55 64 65 74 75)
272 movdqa xmm0,xmm6 ; transpose coefficients(phase 1)
273 punpcklwd xmm6,xmm3 ; xmm6=(06 07 16 17 26 27 36 37)
274 punpckhwd xmm0,xmm3 ; xmm0=(46 47 56 57 66 67 76 77)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]275
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]276 movdqa xmm2,xmm5 ; transpose coefficients(phase 2)
277 punpckldq xmm5,xmm6 ; xmm5=(04 05 06 07 14 15 16 17)
278 punpckhdq xmm2,xmm6 ; xmm2=(24 25 26 27 34 35 36 37)
279 movdqa xmm3,xmm7 ; transpose coefficients(phase 2)
280 punpckldq xmm7,xmm0 ; xmm7=(44 45 46 47 54 55 56 57)
281 punpckhdq xmm3,xmm0 ; xmm3=(64 65 66 67 74 75 76 77)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]282
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]283 movdqa xmm6, XMMWORD [wk(0)] ; xmm6=(02 03 12 13 22 23 32 33)
284 movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(42 43 52 53 62 63 72 73)
285 movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=(24 25 26 27 34 35 36 37)
286 movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(44 45 46 47 54 55 56 57)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]287
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]288 movdqa xmm2,xmm1 ; transpose coefficients(phase 2)
289 punpckldq xmm1,xmm6 ; xmm1=(00 01 02 03 10 11 12 13)
290 punpckhdq xmm2,xmm6 ; xmm2=(20 21 22 23 30 31 32 33)
291 movdqa xmm7,xmm4 ; transpose coefficients(phase 2)
292 punpckldq xmm4,xmm0 ; xmm4=(40 41 42 43 50 51 52 53)
293 punpckhdq xmm7,xmm0 ; xmm7=(60 61 62 63 70 71 72 73)
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]294
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]295 movdqa xmm6,xmm1 ; transpose coefficients(phase 3)
296 punpcklqdq xmm1,xmm5 ; xmm1=(00 01 02 03 04 05 06 07)=data0
297 punpckhqdq xmm6,xmm5 ; xmm6=(10 11 12 13 14 15 16 17)=data1
298 movdqa xmm0,xmm7 ; transpose coefficients(phase 3)
299 punpcklqdq xmm7,xmm3 ; xmm7=(60 61 62 63 64 65 66 67)=data6
300 punpckhqdq xmm0,xmm3 ; xmm0=(70 71 72 73 74 75 76 77)=data7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]301
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]302 movdqa xmm5,xmm6
303 movdqa xmm3,xmm1
304 psubw xmm6,xmm7 ; xmm6=data1-data6=tmp6
305 psubw xmm1,xmm0 ; xmm1=data0-data7=tmp7
306 paddw xmm5,xmm7 ; xmm5=data1+data6=tmp1
307 paddw xmm3,xmm0 ; xmm3=data0+data7=tmp0
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]308
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]309 movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(24 25 26 27 34 35 36 37)
310 movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(44 45 46 47 54 55 56 57)
311 movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=tmp6
312 movdqa XMMWORD [wk(1)], xmm1 ; wk(1)=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]313
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]314 movdqa xmm6,xmm2 ; transpose coefficients(phase 3)
315 punpcklqdq xmm2,xmm7 ; xmm2=(20 21 22 23 24 25 26 27)=data2
316 punpckhqdq xmm6,xmm7 ; xmm6=(30 31 32 33 34 35 36 37)=data3
317 movdqa xmm1,xmm4 ; transpose coefficients(phase 3)
318 punpcklqdq xmm4,xmm0 ; xmm4=(40 41 42 43 44 45 46 47)=data4
319 punpckhqdq xmm1,xmm0 ; xmm1=(50 51 52 53 54 55 56 57)=data5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]320
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]321 movdqa xmm7,xmm6
322 movdqa xmm0,xmm2
323 paddw xmm6,xmm4 ; xmm6=data3+data4=tmp3
324 paddw xmm2,xmm1 ; xmm2=data2+data5=tmp2
325 psubw xmm7,xmm4 ; xmm7=data3-data4=tmp4
326 psubw xmm0,xmm1 ; xmm0=data2-data5=tmp5
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]327
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]328 ; -- Even part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]329
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]330 movdqa xmm4,xmm3
331 movdqa xmm1,xmm5
332 psubw xmm3,xmm6 ; xmm3=tmp13
333 psubw xmm5,xmm2 ; xmm5=tmp12
334 paddw xmm4,xmm6 ; xmm4=tmp10
335 paddw xmm1,xmm2 ; xmm1=tmp11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]336
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]337 paddw xmm5,xmm3
338 psllw xmm5,PRE_MULTIPLY_SCALE_BITS
339 pmulhw xmm5,[GOTOFF(ebx,PW_F0707)] ; xmm5=z1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]340
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]341 movdqa xmm6,xmm4
342 movdqa xmm2,xmm3
343 psubw xmm4,xmm1 ; xmm4=data4
344 psubw xmm3,xmm5 ; xmm3=data6
345 paddw xmm6,xmm1 ; xmm6=data0
346 paddw xmm2,xmm5 ; xmm2=data2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]347
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]348 movdqa XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_DCTELEM)], xmm4
349 movdqa XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_DCTELEM)], xmm3
350 movdqa XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_DCTELEM)], xmm6
351 movdqa XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_DCTELEM)], xmm2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]352
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]353 ; -- Odd part
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]354
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]355 movdqa xmm1, XMMWORD [wk(0)] ; xmm1=tmp6
356 movdqa xmm5, XMMWORD [wk(1)] ; xmm5=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]357
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]358 paddw xmm7,xmm0 ; xmm7=tmp10
359 paddw xmm0,xmm1 ; xmm0=tmp11
360 paddw xmm1,xmm5 ; xmm1=tmp12, xmm5=tmp7
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]361
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]362 psllw xmm7,PRE_MULTIPLY_SCALE_BITS
363 psllw xmm1,PRE_MULTIPLY_SCALE_BITS
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]364
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]365 psllw xmm0,PRE_MULTIPLY_SCALE_BITS
366 pmulhw xmm0,[GOTOFF(ebx,PW_F0707)] ; xmm0=z3
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]367
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]368 movdqa xmm4,xmm7 ; xmm4=tmp10
369 psubw xmm7,xmm1
370 pmulhw xmm7,[GOTOFF(ebx,PW_F0382)] ; xmm7=z5
371 pmulhw xmm4,[GOTOFF(ebx,PW_F0541)] ; xmm4=MULTIPLY(tmp10,FIX_0_541196)
372 pmulhw xmm1,[GOTOFF(ebx,PW_F1306)] ; xmm1=MULTIPLY(tmp12,FIX_1_306562)
373 paddw xmm4,xmm7 ; xmm4=z2
374 paddw xmm1,xmm7 ; xmm1=z4
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]375
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]376 movdqa xmm3,xmm5
377 psubw xmm5,xmm0 ; xmm5=z13
378 paddw xmm3,xmm0 ; xmm3=z11
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]379
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]380 movdqa xmm6,xmm5
381 movdqa xmm2,xmm3
382 psubw xmm5,xmm4 ; xmm5=data3
383 psubw xmm3,xmm1 ; xmm3=data7
384 paddw xmm6,xmm4 ; xmm6=data5
385 paddw xmm2,xmm1 ; xmm2=data1
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]386
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]387 movdqa XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_DCTELEM)], xmm5
388 movdqa XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_DCTELEM)], xmm3
389 movdqa XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_DCTELEM)], xmm6
390 movdqa XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_DCTELEM)], xmm2
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]391
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]392; pop edi ; unused
393; pop esi ; unused
394; pop edx ; need not be preserved
395; pop ecx ; unused
396 poppic ebx
397 mov esp,ebp ; esp <- aligned ebp
398 pop esp ; esp <- original ebp
399 pop ebp
400 ret
MIYASAKA Masarua2e6a9d2006-02-04 00:00:00 +0000[diff] [blame]401
DRC132b5fd2009-10-08 09:04:56 +0000[diff] [blame]402; For some reason, the OS X linker does not honor the request to align the
403; segment unless we do this.
DRCe5eaf372014-05-09 18:00:32 +0000[diff] [blame]404 align 16