2 ; jdclrss2-64.asm - colorspace conversion (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/project/showfiles.php?group_id=6208
20 %include "jcolsamp.inc"
22 ; --------------------------------------------------------------------------
26 ; Convert some rows of samples to the output colorspace.
29 ; jsimd_ycc_rgb_convert_sse2 (JDIMENSION out_width,
30 ; JSAMPIMAGE input_buf, JDIMENSION input_row,
31 ; JSAMPARRAY output_buf, int num_rows)
34 ; r10 = JDIMENSION out_width
35 ; r11 = JSAMPIMAGE input_buf
36 ; r12 = JDIMENSION input_row
37 ; r13 = JSAMPARRAY output_buf
40 %define wk
(i
) rbp
-(WK_NUM
-(i
))*SIZEOF_XMMWORD
; xmmword wk[WK_NUM]
44 global EXTN
(jsimd_ycc_rgb_convert_sse2
)
46 EXTN
(jsimd_ycc_rgb_convert_sse2
):
48 mov rax
,rsp
; rax = original rbp
50 and rsp
, byte (-SIZEOF_XMMWORD
) ; align to 128 bits
52 mov rbp
,rsp
; rbp = aligned rbp
57 mov rcx
, r10
; num_cols
65 mov rsi
, JSAMPARRAY
[rdi
+0*SIZEOF_JSAMPARRAY
]
66 mov rbx
, JSAMPARRAY
[rdi
+1*SIZEOF_JSAMPARRAY
]
67 mov rdx
, JSAMPARRAY
[rdi
+2*SIZEOF_JSAMPARRAY
]
68 lea rsi
, [rsi
+rcx
*SIZEOF_JSAMPROW
]
69 lea rbx
, [rbx
+rcx
*SIZEOF_JSAMPROW
]
70 lea rdx
, [rdx
+rcx
*SIZEOF_JSAMPROW
]
86 mov rsi
, JSAMPROW
[rsi
] ; inptr0
87 mov rbx
, JSAMPROW
[rbx
] ; inptr1
88 mov rdx
, JSAMPROW
[rdx
] ; inptr2
89 mov rdi
, JSAMPROW
[rdi
] ; outptr
92 movdqa xmm5
, XMMWORD
[rbx
] ; xmm5=Cb(0123456789ABCDEF)
93 movdqa xmm1
, XMMWORD
[rdx
] ; xmm1=Cr(0123456789ABCDEF)
98 psllw xmm7
,7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
99 movdqa xmm0
,xmm4
; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..}
101 pand xmm4
,xmm5
; xmm4=Cb(02468ACE)=CbE
102 psrlw xmm5
,BYTE_BIT
; xmm5=Cb(13579BDF)=CbO
103 pand xmm0
,xmm1
; xmm0=Cr(02468ACE)=CrE
104 psrlw xmm1
,BYTE_BIT
; xmm1=Cr(13579BDF)=CrO
112 ; R = Y + 1.40200 * Cr
113 ; G = Y - 0.34414 * Cb - 0.71414 * Cr
114 ; B = Y + 1.77200 * Cb
116 ; (This implementation)
117 ; R = Y + 0.40200 * Cr + Cr
118 ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
119 ; B = Y - 0.22800 * Cb + Cb + Cb
121 movdqa xmm2
,xmm4
; xmm2=CbE
122 movdqa xmm3
,xmm5
; xmm3=CbO
123 paddw xmm4
,xmm4
; xmm4=2*CbE
124 paddw xmm5
,xmm5
; xmm5=2*CbO
125 movdqa xmm6
,xmm0
; xmm6=CrE
126 movdqa xmm7
,xmm1
; xmm7=CrO
127 paddw xmm0
,xmm0
; xmm0=2*CrE
128 paddw xmm1
,xmm1
; xmm1=2*CrO
130 pmulhw xmm4
,[rel PW_MF0228
] ; xmm4=(2*CbE * -FIX(0.22800))
131 pmulhw xmm5
,[rel PW_MF0228
] ; xmm5=(2*CbO * -FIX(0.22800))
132 pmulhw xmm0
,[rel PW_F0402
] ; xmm0=(2*CrE * FIX(0.40200))
133 pmulhw xmm1
,[rel PW_F0402
] ; xmm1=(2*CrO * FIX(0.40200))
135 paddw xmm4
,[rel PW_ONE
]
136 paddw xmm5
,[rel PW_ONE
]
137 psraw xmm4
,1 ; xmm4=(CbE * -FIX(0.22800))
138 psraw xmm5
,1 ; xmm5=(CbO * -FIX(0.22800))
139 paddw xmm0
,[rel PW_ONE
]
140 paddw xmm1
,[rel PW_ONE
]
141 psraw xmm0
,1 ; xmm0=(CrE * FIX(0.40200))
142 psraw xmm1
,1 ; xmm1=(CrO * FIX(0.40200))
146 paddw xmm4
,xmm2
; xmm4=(CbE * FIX(1.77200))=(B-Y)E
147 paddw xmm5
,xmm3
; xmm5=(CbO * FIX(1.77200))=(B-Y)O
148 paddw xmm0
,xmm6
; xmm0=(CrE * FIX(1.40200))=(R-Y)E
149 paddw xmm1
,xmm7
; xmm1=(CrO * FIX(1.40200))=(R-Y)O
151 movdqa XMMWORD
[wk
(0)], xmm4
; wk(0)=(B-Y)E
152 movdqa XMMWORD
[wk
(1)], xmm5
; wk(1)=(B-Y)O
158 pmaddwd xmm2
,[rel PW_MF0344_F0285
]
159 pmaddwd xmm4
,[rel PW_MF0344_F0285
]
162 pmaddwd xmm3
,[rel PW_MF0344_F0285
]
163 pmaddwd xmm5
,[rel PW_MF0344_F0285
]
165 paddd xmm2
,[rel PD_ONEHALF
]
166 paddd xmm4
,[rel PD_ONEHALF
]
169 paddd xmm3
,[rel PD_ONEHALF
]
170 paddd xmm5
,[rel PD_ONEHALF
]
174 packssdw xmm2
,xmm4
; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
175 packssdw xmm3
,xmm5
; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
176 psubw xmm2
,xmm6
; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
177 psubw xmm3
,xmm7
; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
179 movdqa xmm5
, XMMWORD
[rsi
] ; xmm5=Y(0123456789ABCDEF)
182 psrlw xmm4
,BYTE_BIT
; xmm4={0xFF 0x00 0xFF 0x00 ..}
183 pand xmm4
,xmm5
; xmm4=Y(02468ACE)=YE
184 psrlw xmm5
,BYTE_BIT
; xmm5=Y(13579BDF)=YO
186 paddw xmm0
,xmm4
; xmm0=((R-Y)E+YE)=RE=R(02468ACE)
187 paddw xmm1
,xmm5
; xmm1=((R-Y)O+YO)=RO=R(13579BDF)
188 packuswb xmm0
,xmm0
; xmm0=R(02468ACE********)
189 packuswb xmm1
,xmm1
; xmm1=R(13579BDF********)
191 paddw xmm2
,xmm4
; xmm2=((G-Y)E+YE)=GE=G(02468ACE)
192 paddw xmm3
,xmm5
; xmm3=((G-Y)O+YO)=GO=G(13579BDF)
193 packuswb xmm2
,xmm2
; xmm2=G(02468ACE********)
194 packuswb xmm3
,xmm3
; xmm3=G(13579BDF********)
196 paddw xmm4
, XMMWORD
[wk
(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE)
197 paddw xmm5
, XMMWORD
[wk
(1)] ; xmm5=(YO+(B-Y)O)=BO=B(13579BDF)
198 packuswb xmm4
,xmm4
; xmm4=B(02468ACE********)
199 packuswb xmm5
,xmm5
; xmm5=B(13579BDF********)
201 %if RGB_PIXELSIZE
== 3 ; ---------------
203 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
204 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
205 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
206 ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
208 punpcklbw xmmA
,xmmC
; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
209 punpcklbw xmmE
,xmmB
; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
210 punpcklbw xmmD
,xmmF
; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
214 punpcklwd xmmA
,xmmE
; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
215 punpckhwd xmmG
,xmmE
; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
217 psrldq xmmH
,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
218 psrldq xmmE
,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
222 punpcklwd xmmD
,xmmH
; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
223 punpckhwd xmmC
,xmmH
; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
225 psrldq xmmB
,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
228 punpcklwd xmmE
,xmmB
; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
229 punpckhwd xmmF
,xmmB
; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
231 pshufd xmmH
,xmmA
,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
233 punpckldq xmmA
,xmmD
; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
234 punpckldq xmmE
,xmmH
; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
235 punpckhdq xmmD
,xmmB
; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
237 pshufd xmmH
,xmmG
,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
239 punpckldq xmmG
,xmmC
; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
240 punpckldq xmmF
,xmmH
; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
241 punpckhdq xmmC
,xmmB
; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
243 punpcklqdq xmmA
,xmmE
; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
244 punpcklqdq xmmD
,xmmG
; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
245 punpcklqdq xmmF
,xmmC
; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
247 cmp rcx
, byte SIZEOF_XMMWORD
248 jb short .column_st32
250 test rdi
, SIZEOF_XMMWORD
-1
252 ; --(aligned)-------------------
253 movntdq XMMWORD
[rdi
+0*SIZEOF_XMMWORD
], xmmA
254 movntdq XMMWORD
[rdi
+1*SIZEOF_XMMWORD
], xmmD
255 movntdq XMMWORD
[rdi
+2*SIZEOF_XMMWORD
], xmmF
256 add rdi
, byte RGB_PIXELSIZE
*SIZEOF_XMMWORD
; outptr
258 .
out1: ; --(unaligned)-----------------
259 pcmpeqb xmmH
,xmmH
; xmmH=(all 1's)
260 maskmovdqu xmmA
,xmmH
; movntdqu XMMWORD [rdi], xmmA
261 add rdi
, byte SIZEOF_XMMWORD
; outptr
262 maskmovdqu xmmD
,xmmH
; movntdqu XMMWORD [rdi], xmmD
263 add rdi
, byte SIZEOF_XMMWORD
; outptr
264 maskmovdqu xmmF
,xmmH
; movntdqu XMMWORD [rdi], xmmF
265 add rdi
, byte SIZEOF_XMMWORD
; outptr
267 sub rcx
, byte SIZEOF_XMMWORD
270 add rsi
, byte SIZEOF_XMMWORD
; inptr0
271 add rbx
, byte SIZEOF_XMMWORD
; inptr1
272 add rdx
, byte SIZEOF_XMMWORD
; inptr2
276 pcmpeqb xmmH
,xmmH
; xmmH=(all 1's)
277 lea rcx
, [rcx
+rcx
*2] ; imul ecx, RGB_PIXELSIZE
278 cmp rcx
, byte 2*SIZEOF_XMMWORD
279 jb short .column_st16
280 maskmovdqu xmmA
,xmmH
; movntdqu XMMWORD [rdi], xmmA
281 add rdi
, byte SIZEOF_XMMWORD
; outptr
282 maskmovdqu xmmD
,xmmH
; movntdqu XMMWORD [rdi], xmmD
283 add rdi
, byte SIZEOF_XMMWORD
; outptr
285 sub rcx
, byte 2*SIZEOF_XMMWORD
286 jmp short .column_st15
288 cmp rcx
, byte SIZEOF_XMMWORD
289 jb short .column_st15
290 maskmovdqu xmmA
,xmmH
; movntdqu XMMWORD [rdi], xmmA
291 add rdi
, byte SIZEOF_XMMWORD
; outptr
293 sub rcx
, byte SIZEOF_XMMWORD
306 and rcx
, byte SIZEOF_XMMWORD
-1
309 cmp rax
, byte SIZEOF_XMMWORD
311 and rdi
, byte (-SIZEOF_XMMWORD
) ; align to 16-byte boundary
312 shl rcx
, 3 ; pslldq xmmA,ecx & pslldq xmmE,rcx
315 pslldq xmmA
, SIZEOF_XMMWORD
/2
316 pslldq xmmE
, SIZEOF_XMMWORD
/2
318 sub rcx
, byte (SIZEOF_XMMWORD
/2)*BYTE_BIT
332 .
adj0: ; ----------------
333 maskmovdqu xmmA
,xmmE
; movntdqu XMMWORD [rdi], xmmA
335 %else
; RGB_PIXELSIZE == 4 ; -----------
337 %ifdef RGBX_FILLER_0XFF
338 pcmpeqb xmm6
,xmm6
; xmm6=XE=X(02468ACE********)
339 pcmpeqb xmm7
,xmm7
; xmm7=XO=X(13579BDF********)
341 pxor xmm6
,xmm6
; xmm6=XE=X(02468ACE********)
342 pxor xmm7
,xmm7
; xmm7=XO=X(13579BDF********)
344 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
345 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
346 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
347 ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
349 punpcklbw xmmA
,xmmC
; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
350 punpcklbw xmmE
,xmmG
; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
351 punpcklbw xmmB
,xmmD
; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
352 punpcklbw xmmF
,xmmH
; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
355 punpcklwd xmmA
,xmmE
; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
356 punpckhwd xmmC
,xmmE
; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
358 punpcklwd xmmB
,xmmF
; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
359 punpckhwd xmmG
,xmmF
; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
362 punpckldq xmmA
,xmmB
; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
363 punpckhdq xmmD
,xmmB
; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
365 punpckldq xmmC
,xmmG
; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
366 punpckhdq xmmH
,xmmG
; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
368 cmp rcx
, byte SIZEOF_XMMWORD
369 jb short .column_st32
371 test rdi
, SIZEOF_XMMWORD
-1
373 ; --(aligned)-------------------
374 movntdq XMMWORD
[rdi
+0*SIZEOF_XMMWORD
], xmmA
375 movntdq XMMWORD
[rdi
+1*SIZEOF_XMMWORD
], xmmD
376 movntdq XMMWORD
[rdi
+2*SIZEOF_XMMWORD
], xmmC
377 movntdq XMMWORD
[rdi
+3*SIZEOF_XMMWORD
], xmmH
378 add rdi
, byte RGB_PIXELSIZE
*SIZEOF_XMMWORD
; outptr
380 .
out1: ; --(unaligned)-----------------
381 pcmpeqb xmmE
,xmmE
; xmmE=(all 1's)
382 maskmovdqu xmmA
,xmmE
; movntdqu XMMWORD [rdi], xmmA
383 add rdi
, byte SIZEOF_XMMWORD
; outptr
384 maskmovdqu xmmD
,xmmE
; movntdqu XMMWORD [rdi], xmmD
385 add rdi
, byte SIZEOF_XMMWORD
; outptr
386 maskmovdqu xmmC
,xmmE
; movntdqu XMMWORD [rdi], xmmC
387 add rdi
, byte SIZEOF_XMMWORD
; outptr
388 maskmovdqu xmmH
,xmmE
; movntdqu XMMWORD [rdi], xmmH
389 add rdi
, byte SIZEOF_XMMWORD
; outptr
391 sub rcx
, byte SIZEOF_XMMWORD
394 add rsi
, byte SIZEOF_XMMWORD
; inptr0
395 add rbx
, byte SIZEOF_XMMWORD
; inptr1
396 add rdx
, byte SIZEOF_XMMWORD
; inptr2
400 pcmpeqb xmmE
,xmmE
; xmmE=(all 1's)
401 cmp rcx
, byte SIZEOF_XMMWORD
/2
402 jb short .column_st16
403 maskmovdqu xmmA
,xmmE
; movntdqu XMMWORD [rdi], xmmA
404 add rdi
, byte SIZEOF_XMMWORD
; outptr
405 maskmovdqu xmmD
,xmmE
; movntdqu XMMWORD [rdi], xmmD
406 add rdi
, byte SIZEOF_XMMWORD
; outptr
409 sub rcx
, byte SIZEOF_XMMWORD
/2
411 cmp rcx
, byte SIZEOF_XMMWORD
/4
412 jb short .column_st15
413 maskmovdqu xmmA
,xmmE
; movntdqu XMMWORD [rdi], xmmA
414 add rdi
, byte SIZEOF_XMMWORD
; outptr
416 sub rcx
, byte SIZEOF_XMMWORD
/4
418 cmp rcx
, byte SIZEOF_XMMWORD
/16
429 and rcx
, byte SIZEOF_XMMWORD
-1
431 lea rax
, [rcx
+rax
*4] ; RGB_PIXELSIZE
432 cmp rax
, byte SIZEOF_XMMWORD
434 and rdi
, byte (-SIZEOF_XMMWORD
) ; align to 16-byte boundary
435 shl rcx
, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
438 pslldq xmmA
, SIZEOF_XMMWORD
/2
439 pslldq xmmE
, SIZEOF_XMMWORD
/2
441 sub rcx
, byte (SIZEOF_XMMWORD
/2)*BYTE_BIT
455 .
adj0: ; ----------------
456 maskmovdqu xmmA
,xmmE
; movntdqu XMMWORD [rdi], xmmA
458 %endif
; RGB_PIXELSIZE ; ---------------
468 add rsi
, byte SIZEOF_JSAMPROW
469 add rbx
, byte SIZEOF_JSAMPROW
470 add rdx
, byte SIZEOF_JSAMPROW
471 add rdi
, byte SIZEOF_JSAMPROW
; output_buf
475 sfence
; flush the write buffer
480 mov rsp
,rbp
; rsp <- aligned rbp
481 pop rsp
; rsp <- original rbp
485 ; For some reason, the OS X linker does not honor the request to align the
486 ; segment unless we do this.