2 ; jiss2fst-64.asm - fast integer IDCT (64-bit SSE2)
4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
5 ; Copyright 2009 D. R. Commander
8 ; x86 SIMD extension for IJG JPEG library
9 ; Copyright (C) 1999-2006, MIYASAKA Masaru.
10 ; For conditions of distribution and use, see copyright notice in jsimdext.inc
12 ; This file should be assembled with NASM (Netwide Assembler),
13 ; can *not* be assembled with Microsoft's MASM or any compatible
14 ; assembler (including Borland's Turbo Assembler).
15 ; NASM is available from http://nasm.sourceforge.net/ or
16 ; http://sourceforge.net/projecpt/showfiles.php?group_id=6208
18 ; This file contains a fast, not so accurate integer implementation of
19 ; the inverse DCT (Discrete Cosine Transform). The following code is
20 ; based directly on the IJG's original jidctfst.c; see the jidctfst.c
25 %include "jsimdext.inc"
28 ; --------------------------------------------------------------------------
30 %define CONST_BITS
8 ; 14 is also OK.
33 %if IFAST_SCALE_BITS
!= PASS1_BITS
34 %error
"'IFAST_SCALE_BITS' must be equal to 'PASS1_BITS'."
38 F_1_082
equ 277 ; FIX(1.082392200)
39 F_1_414
equ 362 ; FIX(1.414213562)
40 F_1_847
equ 473 ; FIX(1.847759065)
41 F_2_613
equ 669 ; FIX(2.613125930)
42 F_1_613
equ (F_2_613
- 256) ; FIX(2.613125930) - FIX(1)
44 ; NASM cannot do compile-time arithmetic on floating-point constants.
45 %define DESCALE
(x
,n
) (((x
)+(1<<((n
)-1)))>>(n
))
46 F_1_082
equ DESCALE
(1162209775,30-CONST_BITS
) ; FIX(1.082392200)
47 F_1_414
equ DESCALE
(1518500249,30-CONST_BITS
) ; FIX(1.414213562)
48 F_1_847
equ DESCALE
(1984016188,30-CONST_BITS
) ; FIX(1.847759065)
49 F_2_613
equ DESCALE
(2805822602,30-CONST_BITS
) ; FIX(2.613125930)
50 F_1_613
equ (F_2_613
- (1 << CONST_BITS
)) ; FIX(2.613125930) - FIX(1)
53 ; --------------------------------------------------------------------------
56 ; PRE_MULTIPLY_SCALE_BITS <= 2 (to avoid overflow)
57 ; CONST_BITS + CONST_SHIFT + PRE_MULTIPLY_SCALE_BITS == 16 (for pmulhw)
59 %define PRE_MULTIPLY_SCALE_BITS
2
60 %define CONST_SHIFT
(16 - PRE_MULTIPLY_SCALE_BITS
- CONST_BITS
)
63 global EXTN
(jconst_idct_ifast_sse2
)
65 EXTN
(jconst_idct_ifast_sse2
):
67 PW_F1414 times
8 dw F_1_414
<< CONST_SHIFT
68 PW_F1847 times
8 dw F_1_847
<< CONST_SHIFT
69 PW_MF1613 times
8 dw -F_1_613
<< CONST_SHIFT
70 PW_F1082 times
8 dw F_1_082
<< CONST_SHIFT
71 PB_CENTERJSAMP times
16 db CENTERJSAMPLE
75 ; --------------------------------------------------------------------------
79 ; Perform dequantization and inverse DCT on one block of coefficients.
82 ; jsimd_idct_ifast_sse2 (void * dct_table, JCOEFPTR coef_block,
83 ; JSAMPARRAY output_buf, JDIMENSION output_col)
86 ; r10 = jpeg_component_info * compptr
87 ; r11 = JCOEFPTR coef_block
88 ; r12 = JSAMPARRAY output_buf
89 ; r13 = JDIMENSION output_col
91 %define original_rbp rbp
+0
92 %define wk
(i
) rbp
-(WK_NUM
-(i
))*SIZEOF_XMMWORD
; xmmword wk[WK_NUM]
96 global EXTN
(jsimd_idct_ifast_sse2
)
98 EXTN
(jsimd_idct_ifast_sse2
):
100 mov rax
,rsp
; rax = original rbp
102 and rsp
, byte (-SIZEOF_XMMWORD
) ; align to 128 bits
104 mov rbp
,rsp
; rbp = aligned rbp
108 ; ---- Pass 1: process columns from input.
110 mov rdx
, r10
; quantptr
113 %ifndef NO_ZERO_COLUMN_TEST_IFAST_SSE2
114 mov eax, DWORD [DWBLOCK
(1,0,rsi
,SIZEOF_JCOEF
)]
115 or eax, DWORD [DWBLOCK
(2,0,rsi
,SIZEOF_JCOEF
)]
118 movdqa xmm0
, XMMWORD
[XMMBLOCK
(1,0,rsi
,SIZEOF_JCOEF
)]
119 movdqa xmm1
, XMMWORD
[XMMBLOCK
(2,0,rsi
,SIZEOF_JCOEF
)]
120 por xmm0
, XMMWORD
[XMMBLOCK
(3,0,rsi
,SIZEOF_JCOEF
)]
121 por xmm1
, XMMWORD
[XMMBLOCK
(4,0,rsi
,SIZEOF_JCOEF
)]
122 por xmm0
, XMMWORD
[XMMBLOCK
(5,0,rsi
,SIZEOF_JCOEF
)]
123 por xmm1
, XMMWORD
[XMMBLOCK
(6,0,rsi
,SIZEOF_JCOEF
)]
124 por xmm0
, XMMWORD
[XMMBLOCK
(7,0,rsi
,SIZEOF_JCOEF
)]
132 ; -- AC terms all zero
134 movdqa xmm0
, XMMWORD
[XMMBLOCK
(0,0,rsi
,SIZEOF_JCOEF
)]
135 pmullw xmm0
, XMMWORD
[XMMBLOCK
(0,0,rdx
,SIZEOF_ISLOW_MULT_TYPE
)]
137 movdqa xmm7
,xmm0
; xmm0=in0=(00 01 02 03 04 05 06 07)
138 punpcklwd xmm0
,xmm0
; xmm0=(00 00 01 01 02 02 03 03)
139 punpckhwd xmm7
,xmm7
; xmm7=(04 04 05 05 06 06 07 07)
141 pshufd xmm6
,xmm0
,0x00 ; xmm6=col0=(00 00 00 00 00 00 00 00)
142 pshufd xmm2
,xmm0
,0x55 ; xmm2=col1=(01 01 01 01 01 01 01 01)
143 pshufd xmm5
,xmm0
,0xAA ; xmm5=col2=(02 02 02 02 02 02 02 02)
144 pshufd xmm0
,xmm0
,0xFF ; xmm0=col3=(03 03 03 03 03 03 03 03)
145 pshufd xmm1
,xmm7
,0x00 ; xmm1=col4=(04 04 04 04 04 04 04 04)
146 pshufd xmm4
,xmm7
,0x55 ; xmm4=col5=(05 05 05 05 05 05 05 05)
147 pshufd xmm3
,xmm7
,0xAA ; xmm3=col6=(06 06 06 06 06 06 06 06)
148 pshufd xmm7
,xmm7
,0xFF ; xmm7=col7=(07 07 07 07 07 07 07 07)
150 movdqa XMMWORD
[wk
(0)], xmm2
; wk(0)=col1
151 movdqa XMMWORD
[wk
(1)], xmm0
; wk(1)=col3
158 movdqa xmm0
, XMMWORD
[XMMBLOCK
(0,0,rsi
,SIZEOF_JCOEF
)]
159 movdqa xmm1
, XMMWORD
[XMMBLOCK
(2,0,rsi
,SIZEOF_JCOEF
)]
160 pmullw xmm0
, XMMWORD
[XMMBLOCK
(0,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
161 pmullw xmm1
, XMMWORD
[XMMBLOCK
(2,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
162 movdqa xmm2
, XMMWORD
[XMMBLOCK
(4,0,rsi
,SIZEOF_JCOEF
)]
163 movdqa xmm3
, XMMWORD
[XMMBLOCK
(6,0,rsi
,SIZEOF_JCOEF
)]
164 pmullw xmm2
, XMMWORD
[XMMBLOCK
(4,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
165 pmullw xmm3
, XMMWORD
[XMMBLOCK
(6,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
169 psubw xmm0
,xmm2
; xmm0=tmp11
171 paddw xmm4
,xmm2
; xmm4=tmp10
172 paddw xmm5
,xmm3
; xmm5=tmp13
174 psllw xmm1
,PRE_MULTIPLY_SCALE_BITS
175 pmulhw xmm1
,[rel PW_F1414
]
176 psubw xmm1
,xmm5
; xmm1=tmp12
180 psubw xmm4
,xmm5
; xmm4=tmp3
181 psubw xmm0
,xmm1
; xmm0=tmp2
182 paddw xmm6
,xmm5
; xmm6=tmp0
183 paddw xmm7
,xmm1
; xmm7=tmp1
185 movdqa XMMWORD
[wk
(1)], xmm4
; wk(1)=tmp3
186 movdqa XMMWORD
[wk
(0)], xmm0
; wk(0)=tmp2
190 movdqa xmm2
, XMMWORD
[XMMBLOCK
(1,0,rsi
,SIZEOF_JCOEF
)]
191 movdqa xmm3
, XMMWORD
[XMMBLOCK
(3,0,rsi
,SIZEOF_JCOEF
)]
192 pmullw xmm2
, XMMWORD
[XMMBLOCK
(1,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
193 pmullw xmm3
, XMMWORD
[XMMBLOCK
(3,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
194 movdqa xmm5
, XMMWORD
[XMMBLOCK
(5,0,rsi
,SIZEOF_JCOEF
)]
195 movdqa xmm1
, XMMWORD
[XMMBLOCK
(7,0,rsi
,SIZEOF_JCOEF
)]
196 pmullw xmm5
, XMMWORD
[XMMBLOCK
(5,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
197 pmullw xmm1
, XMMWORD
[XMMBLOCK
(7,0,rdx
,SIZEOF_IFAST_MULT_TYPE
)]
201 psubw xmm2
,xmm1
; xmm2=z12
202 psubw xmm5
,xmm3
; xmm5=z10
203 paddw xmm4
,xmm1
; xmm4=z11
204 paddw xmm0
,xmm3
; xmm0=z13
206 movdqa xmm1
,xmm5
; xmm1=z10(unscaled)
207 psllw xmm2
,PRE_MULTIPLY_SCALE_BITS
208 psllw xmm5
,PRE_MULTIPLY_SCALE_BITS
212 paddw xmm3
,xmm0
; xmm3=tmp7
214 psllw xmm4
,PRE_MULTIPLY_SCALE_BITS
215 pmulhw xmm4
,[rel PW_F1414
] ; xmm4=tmp11
217 ; To avoid overflow...
220 ; tmp12 = -2.613125930 * z10 + z5;
222 ; (This implementation)
223 ; tmp12 = (-1.613125930 - 1) * z10 + z5;
224 ; = -1.613125930 * z10 - z10 + z5;
228 pmulhw xmm5
,[rel PW_F1847
] ; xmm5=z5
229 pmulhw xmm0
,[rel PW_MF1613
]
230 pmulhw xmm2
,[rel PW_F1082
]
232 psubw xmm2
,xmm5
; xmm2=tmp10
233 paddw xmm0
,xmm5
; xmm0=tmp12
235 ; -- Final output stage
237 psubw xmm0
,xmm3
; xmm0=tmp6
240 paddw xmm6
,xmm3
; xmm6=data0=(00 01 02 03 04 05 06 07)
241 paddw xmm7
,xmm0
; xmm7=data1=(10 11 12 13 14 15 16 17)
242 psubw xmm1
,xmm3
; xmm1=data7=(70 71 72 73 74 75 76 77)
243 psubw xmm5
,xmm0
; xmm5=data6=(60 61 62 63 64 65 66 67)
244 psubw xmm4
,xmm0
; xmm4=tmp5
246 movdqa xmm3
,xmm6
; transpose coefficients(phase 1)
247 punpcklwd xmm6
,xmm7
; xmm6=(00 10 01 11 02 12 03 13)
248 punpckhwd xmm3
,xmm7
; xmm3=(04 14 05 15 06 16 07 17)
249 movdqa xmm0
,xmm5
; transpose coefficients(phase 1)
250 punpcklwd xmm5
,xmm1
; xmm5=(60 70 61 71 62 72 63 73)
251 punpckhwd xmm0
,xmm1
; xmm0=(64 74 65 75 66 76 67 77)
253 movdqa xmm7
, XMMWORD
[wk
(0)] ; xmm7=tmp2
254 movdqa xmm1
, XMMWORD
[wk
(1)] ; xmm1=tmp3
256 movdqa XMMWORD
[wk
(0)], xmm5
; wk(0)=(60 70 61 71 62 72 63 73)
257 movdqa XMMWORD
[wk
(1)], xmm0
; wk(1)=(64 74 65 75 66 76 67 77)
259 paddw xmm2
,xmm4
; xmm2=tmp4
262 paddw xmm7
,xmm4
; xmm7=data2=(20 21 22 23 24 25 26 27)
263 paddw xmm1
,xmm2
; xmm1=data4=(40 41 42 43 44 45 46 47)
264 psubw xmm5
,xmm4
; xmm5=data5=(50 51 52 53 54 55 56 57)
265 psubw xmm0
,xmm2
; xmm0=data3=(30 31 32 33 34 35 36 37)
267 movdqa xmm4
,xmm7
; transpose coefficients(phase 1)
268 punpcklwd xmm7
,xmm0
; xmm7=(20 30 21 31 22 32 23 33)
269 punpckhwd xmm4
,xmm0
; xmm4=(24 34 25 35 26 36 27 37)
270 movdqa xmm2
,xmm1
; transpose coefficients(phase 1)
271 punpcklwd xmm1
,xmm5
; xmm1=(40 50 41 51 42 52 43 53)
272 punpckhwd xmm2
,xmm5
; xmm2=(44 54 45 55 46 56 47 57)
274 movdqa xmm0
,xmm3
; transpose coefficients(phase 2)
275 punpckldq xmm3
,xmm4
; xmm3=(04 14 24 34 05 15 25 35)
276 punpckhdq xmm0
,xmm4
; xmm0=(06 16 26 36 07 17 27 37)
277 movdqa xmm5
,xmm6
; transpose coefficients(phase 2)
278 punpckldq xmm6
,xmm7
; xmm6=(00 10 20 30 01 11 21 31)
279 punpckhdq xmm5
,xmm7
; xmm5=(02 12 22 32 03 13 23 33)
281 movdqa xmm4
, XMMWORD
[wk
(0)] ; xmm4=(60 70 61 71 62 72 63 73)
282 movdqa xmm7
, XMMWORD
[wk
(1)] ; xmm7=(64 74 65 75 66 76 67 77)
284 movdqa XMMWORD
[wk
(0)], xmm3
; wk(0)=(04 14 24 34 05 15 25 35)
285 movdqa XMMWORD
[wk
(1)], xmm0
; wk(1)=(06 16 26 36 07 17 27 37)
287 movdqa xmm3
,xmm1
; transpose coefficients(phase 2)
288 punpckldq xmm1
,xmm4
; xmm1=(40 50 60 70 41 51 61 71)
289 punpckhdq xmm3
,xmm4
; xmm3=(42 52 62 72 43 53 63 73)
290 movdqa xmm0
,xmm2
; transpose coefficients(phase 2)
291 punpckldq xmm2
,xmm7
; xmm2=(44 54 64 74 45 55 65 75)
292 punpckhdq xmm0
,xmm7
; xmm0=(46 56 66 76 47 57 67 77)
294 movdqa xmm4
,xmm6
; transpose coefficients(phase 3)
295 punpcklqdq xmm6
,xmm1
; xmm6=col0=(00 10 20 30 40 50 60 70)
296 punpckhqdq xmm4
,xmm1
; xmm4=col1=(01 11 21 31 41 51 61 71)
297 movdqa xmm7
,xmm5
; transpose coefficients(phase 3)
298 punpcklqdq xmm5
,xmm3
; xmm5=col2=(02 12 22 32 42 52 62 72)
299 punpckhqdq xmm7
,xmm3
; xmm7=col3=(03 13 23 33 43 53 63 73)
301 movdqa xmm1
, XMMWORD
[wk
(0)] ; xmm1=(04 14 24 34 05 15 25 35)
302 movdqa xmm3
, XMMWORD
[wk
(1)] ; xmm3=(06 16 26 36 07 17 27 37)
304 movdqa XMMWORD
[wk
(0)], xmm4
; wk(0)=col1
305 movdqa XMMWORD
[wk
(1)], xmm7
; wk(1)=col3
307 movdqa xmm4
,xmm1
; transpose coefficients(phase 3)
308 punpcklqdq xmm1
,xmm2
; xmm1=col4=(04 14 24 34 44 54 64 74)
309 punpckhqdq xmm4
,xmm2
; xmm4=col5=(05 15 25 35 45 55 65 75)
310 movdqa xmm7
,xmm3
; transpose coefficients(phase 3)
311 punpcklqdq xmm3
,xmm0
; xmm3=col6=(06 16 26 36 46 56 66 76)
312 punpckhqdq xmm7
,xmm0
; xmm7=col7=(07 17 27 37 47 57 67 77)
315 ; -- Prefetch the next coefficient block
317 prefetchnta
[rsi
+ DCTSIZE2
*SIZEOF_JCOEF
+ 0*32]
318 prefetchnta
[rsi
+ DCTSIZE2
*SIZEOF_JCOEF
+ 1*32]
319 prefetchnta
[rsi
+ DCTSIZE2
*SIZEOF_JCOEF
+ 2*32]
320 prefetchnta
[rsi
+ DCTSIZE2
*SIZEOF_JCOEF
+ 3*32]
322 ; ---- Pass 2: process rows from work array, store into output array.
324 mov rax
, [original_rbp
]
325 mov rdi
, r12
; (JSAMPROW *)
330 ; xmm6=col0, xmm5=col2, xmm1=col4, xmm3=col6
334 psubw xmm6
,xmm1
; xmm6=tmp11
336 paddw xmm2
,xmm1
; xmm2=tmp10
337 paddw xmm0
,xmm3
; xmm0=tmp13
339 psllw xmm5
,PRE_MULTIPLY_SCALE_BITS
340 pmulhw xmm5
,[rel PW_F1414
]
341 psubw xmm5
,xmm0
; xmm5=tmp12
345 psubw xmm2
,xmm0
; xmm2=tmp3
346 psubw xmm6
,xmm5
; xmm6=tmp2
347 paddw xmm1
,xmm0
; xmm1=tmp0
348 paddw xmm3
,xmm5
; xmm3=tmp1
350 movdqa xmm0
, XMMWORD
[wk
(0)] ; xmm0=col1
351 movdqa xmm5
, XMMWORD
[wk
(1)] ; xmm5=col3
353 movdqa XMMWORD
[wk
(0)], xmm2
; wk(0)=tmp3
354 movdqa XMMWORD
[wk
(1)], xmm6
; wk(1)=tmp2
358 ; xmm0=col1, xmm5=col3, xmm4=col5, xmm7=col7
362 psubw xmm0
,xmm7
; xmm0=z12
363 psubw xmm4
,xmm5
; xmm4=z10
364 paddw xmm2
,xmm7
; xmm2=z11
365 paddw xmm6
,xmm5
; xmm6=z13
367 movdqa xmm7
,xmm4
; xmm7=z10(unscaled)
368 psllw xmm0
,PRE_MULTIPLY_SCALE_BITS
369 psllw xmm4
,PRE_MULTIPLY_SCALE_BITS
373 paddw xmm5
,xmm6
; xmm5=tmp7
375 psllw xmm2
,PRE_MULTIPLY_SCALE_BITS
376 pmulhw xmm2
,[rel PW_F1414
] ; xmm2=tmp11
378 ; To avoid overflow...
381 ; tmp12 = -2.613125930 * z10 + z5;
383 ; (This implementation)
384 ; tmp12 = (-1.613125930 - 1) * z10 + z5;
385 ; = -1.613125930 * z10 - z10 + z5;
389 pmulhw xmm4
,[rel PW_F1847
] ; xmm4=z5
390 pmulhw xmm6
,[rel PW_MF1613
]
391 pmulhw xmm0
,[rel PW_F1082
]
393 psubw xmm0
,xmm4
; xmm0=tmp10
394 paddw xmm6
,xmm4
; xmm6=tmp12
396 ; -- Final output stage
398 psubw xmm6
,xmm5
; xmm6=tmp6
401 paddw xmm1
,xmm5
; xmm1=data0=(00 10 20 30 40 50 60 70)
402 paddw xmm3
,xmm6
; xmm3=data1=(01 11 21 31 41 51 61 71)
403 psraw xmm1
,(PASS1_BITS
+3) ; descale
404 psraw xmm3
,(PASS1_BITS
+3) ; descale
405 psubw xmm7
,xmm5
; xmm7=data7=(07 17 27 37 47 57 67 77)
406 psubw xmm4
,xmm6
; xmm4=data6=(06 16 26 36 46 56 66 76)
407 psraw xmm7
,(PASS1_BITS
+3) ; descale
408 psraw xmm4
,(PASS1_BITS
+3) ; descale
409 psubw xmm2
,xmm6
; xmm2=tmp5
411 packsswb xmm1
,xmm4
; xmm1=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
412 packsswb xmm3
,xmm7
; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
414 movdqa xmm5
, XMMWORD
[wk
(1)] ; xmm5=tmp2
415 movdqa xmm6
, XMMWORD
[wk
(0)] ; xmm6=tmp3
417 paddw xmm0
,xmm2
; xmm0=tmp4
420 paddw xmm5
,xmm2
; xmm5=data2=(02 12 22 32 42 52 62 72)
421 paddw xmm6
,xmm0
; xmm6=data4=(04 14 24 34 44 54 64 74)
422 psraw xmm5
,(PASS1_BITS
+3) ; descale
423 psraw xmm6
,(PASS1_BITS
+3) ; descale
424 psubw xmm4
,xmm2
; xmm4=data5=(05 15 25 35 45 55 65 75)
425 psubw xmm7
,xmm0
; xmm7=data3=(03 13 23 33 43 53 63 73)
426 psraw xmm4
,(PASS1_BITS
+3) ; descale
427 psraw xmm7
,(PASS1_BITS
+3) ; descale
429 movdqa xmm2
,[rel PB_CENTERJSAMP
] ; xmm2=[rel PB_CENTERJSAMP]
431 packsswb xmm5
,xmm6
; xmm5=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
432 packsswb xmm7
,xmm4
; xmm7=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
439 movdqa xmm0
,xmm1
; transpose coefficients(phase 1)
440 punpcklbw xmm1
,xmm3
; xmm1=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
441 punpckhbw xmm0
,xmm3
; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
442 movdqa xmm6
,xmm5
; transpose coefficients(phase 1)
443 punpcklbw xmm5
,xmm7
; xmm5=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
444 punpckhbw xmm6
,xmm7
; xmm6=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
446 movdqa xmm4
,xmm1
; transpose coefficients(phase 2)
447 punpcklwd xmm1
,xmm5
; xmm1=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
448 punpckhwd xmm4
,xmm5
; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
449 movdqa xmm2
,xmm6
; transpose coefficients(phase 2)
450 punpcklwd xmm6
,xmm0
; xmm6=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
451 punpckhwd xmm2
,xmm0
; xmm2=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
453 movdqa xmm3
,xmm1
; transpose coefficients(phase 3)
454 punpckldq xmm1
,xmm6
; xmm1=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
455 punpckhdq xmm3
,xmm6
; xmm3=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
456 movdqa xmm7
,xmm4
; transpose coefficients(phase 3)
457 punpckldq xmm4
,xmm2
; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
458 punpckhdq xmm7
,xmm2
; xmm7=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
460 pshufd xmm5
,xmm1
,0x4E ; xmm5=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
461 pshufd xmm0
,xmm3
,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
462 pshufd xmm6
,xmm4
,0x4E ; xmm6=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
463 pshufd xmm2
,xmm7
,0x4E ; xmm2=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
465 mov rdx
, JSAMPROW
[rdi
+0*SIZEOF_JSAMPROW
]
466 mov rsi
, JSAMPROW
[rdi
+2*SIZEOF_JSAMPROW
]
467 movq XMM_MMWORD
[rdx
+rax
*SIZEOF_JSAMPLE
], xmm1
468 movq XMM_MMWORD
[rsi
+rax
*SIZEOF_JSAMPLE
], xmm3
469 mov rdx
, JSAMPROW
[rdi
+4*SIZEOF_JSAMPROW
]
470 mov rsi
, JSAMPROW
[rdi
+6*SIZEOF_JSAMPROW
]
471 movq XMM_MMWORD
[rdx
+rax
*SIZEOF_JSAMPLE
], xmm4
472 movq XMM_MMWORD
[rsi
+rax
*SIZEOF_JSAMPLE
], xmm7
474 mov rdx
, JSAMPROW
[rdi
+1*SIZEOF_JSAMPROW
]
475 mov rsi
, JSAMPROW
[rdi
+3*SIZEOF_JSAMPROW
]
476 movq XMM_MMWORD
[rdx
+rax
*SIZEOF_JSAMPLE
], xmm5
477 movq XMM_MMWORD
[rsi
+rax
*SIZEOF_JSAMPLE
], xmm0
478 mov rdx
, JSAMPROW
[rdi
+5*SIZEOF_JSAMPROW
]
479 mov rsi
, JSAMPROW
[rdi
+7*SIZEOF_JSAMPROW
]
480 movq XMM_MMWORD
[rdx
+rax
*SIZEOF_JSAMPLE
], xmm6
481 movq XMM_MMWORD
[rsi
+rax
*SIZEOF_JSAMPLE
], xmm2
484 mov rsp
,rbp
; rsp <- aligned rbp
485 pop rsp
; rsp <- original rbp
490 ; For some reason, the OS X linker does not honor the request to align the
491 ; segment unless we do this.