2 ; jdcolext.asm - colorspace conversion (64-bit SSE2)
4 ; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
5 ; Copyright (C) 2009, 2012, 2016, D. R. Commander.
6 ; Copyright (C) 2018, Matthias Räncker.
8 ; Based on the 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
18 %include "jcolsamp.inc"
20 ; --------------------------------------------------------------------------
22 ; Convert some rows of samples to the output colorspace.
25 ; jsimd_ycc_rgb_convert_sse2(JDIMENSION out_width, JSAMPIMAGE input_buf,
26 ; JDIMENSION input_row, JSAMPARRAY output_buf,
30 ; r10d = JDIMENSION out_width
31 ; r11 = JSAMPIMAGE input_buf
32 ; r12d = JDIMENSION input_row
33 ; r13 = JSAMPARRAY output_buf
36 %define wk(i) rbp - (WK_NUM - (i)) * SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
40 GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_sse2)
42 EXTN(jsimd_ycc_rgb_convert_sse2):
44 mov rax, rsp ; rax = original rbp
46 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
48 mov rbp, rsp ; rbp = aligned rbp
53 mov ecx, r10d ; num_cols
61 mov rsip, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY]
62 mov rbxp, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY]
63 mov rdxp, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY]
64 lea rsi, [rsi+rcx*SIZEOF_JSAMPROW]
65 lea rbx, [rbx+rcx*SIZEOF_JSAMPROW]
66 lea rdx, [rdx+rcx*SIZEOF_JSAMPROW]
82 mov rsip, JSAMPROW [rsi] ; inptr0
83 mov rbxp, JSAMPROW [rbx] ; inptr1
84 mov rdxp, JSAMPROW [rdx] ; inptr2
85 mov rdip, JSAMPROW [rdi] ; outptr
88 movdqa xmm5, XMMWORD [rbx] ; xmm5=Cb(0123456789ABCDEF)
89 movdqa xmm1, XMMWORD [rdx] ; xmm1=Cr(0123456789ABCDEF)
94 psllw xmm7, 7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
95 movdqa xmm0, xmm4 ; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..}
97 pand xmm4, xmm5 ; xmm4=Cb(02468ACE)=CbE
98 psrlw xmm5, BYTE_BIT ; xmm5=Cb(13579BDF)=CbO
99 pand xmm0, xmm1 ; xmm0=Cr(02468ACE)=CrE
100 psrlw xmm1, BYTE_BIT ; xmm1=Cr(13579BDF)=CrO
108 ; R = Y + 1.40200 * Cr
109 ; G = Y - 0.34414 * Cb - 0.71414 * Cr
110 ; B = Y + 1.77200 * Cb
112 ; (This implementation)
113 ; R = Y + 0.40200 * Cr + Cr
114 ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
115 ; B = Y - 0.22800 * Cb + Cb + Cb
117 movdqa xmm2, xmm4 ; xmm2=CbE
118 movdqa xmm3, xmm5 ; xmm3=CbO
119 paddw xmm4, xmm4 ; xmm4=2*CbE
120 paddw xmm5, xmm5 ; xmm5=2*CbO
121 movdqa xmm6, xmm0 ; xmm6=CrE
122 movdqa xmm7, xmm1 ; xmm7=CrO
123 paddw xmm0, xmm0 ; xmm0=2*CrE
124 paddw xmm1, xmm1 ; xmm1=2*CrO
126 pmulhw xmm4, [rel PW_MF0228] ; xmm4=(2*CbE * -FIX(0.22800))
127 pmulhw xmm5, [rel PW_MF0228] ; xmm5=(2*CbO * -FIX(0.22800))
128 pmulhw xmm0, [rel PW_F0402] ; xmm0=(2*CrE * FIX(0.40200))
129 pmulhw xmm1, [rel PW_F0402] ; xmm1=(2*CrO * FIX(0.40200))
131 paddw xmm4, [rel PW_ONE]
132 paddw xmm5, [rel PW_ONE]
133 psraw xmm4, 1 ; xmm4=(CbE * -FIX(0.22800))
134 psraw xmm5, 1 ; xmm5=(CbO * -FIX(0.22800))
135 paddw xmm0, [rel PW_ONE]
136 paddw xmm1, [rel PW_ONE]
137 psraw xmm0, 1 ; xmm0=(CrE * FIX(0.40200))
138 psraw xmm1, 1 ; xmm1=(CrO * FIX(0.40200))
142 paddw xmm4, xmm2 ; xmm4=(CbE * FIX(1.77200))=(B-Y)E
143 paddw xmm5, xmm3 ; xmm5=(CbO * FIX(1.77200))=(B-Y)O
144 paddw xmm0, xmm6 ; xmm0=(CrE * FIX(1.40200))=(R-Y)E
145 paddw xmm1, xmm7 ; xmm1=(CrO * FIX(1.40200))=(R-Y)O
147 movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=(B-Y)E
148 movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(B-Y)O
154 pmaddwd xmm2, [rel PW_MF0344_F0285]
155 pmaddwd xmm4, [rel PW_MF0344_F0285]
158 pmaddwd xmm3, [rel PW_MF0344_F0285]
159 pmaddwd xmm5, [rel PW_MF0344_F0285]
161 paddd xmm2, [rel PD_ONEHALF]
162 paddd xmm4, [rel PD_ONEHALF]
163 psrad xmm2, SCALEBITS
164 psrad xmm4, SCALEBITS
165 paddd xmm3, [rel PD_ONEHALF]
166 paddd xmm5, [rel PD_ONEHALF]
167 psrad xmm3, SCALEBITS
168 psrad xmm5, SCALEBITS
170 packssdw xmm2, xmm4 ; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
171 packssdw xmm3, xmm5 ; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
172 psubw xmm2, xmm6 ; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
173 psubw xmm3, xmm7 ; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
175 movdqa xmm5, XMMWORD [rsi] ; xmm5=Y(0123456789ABCDEF)
178 psrlw xmm4, BYTE_BIT ; xmm4={0xFF 0x00 0xFF 0x00 ..}
179 pand xmm4, xmm5 ; xmm4=Y(02468ACE)=YE
180 psrlw xmm5, BYTE_BIT ; xmm5=Y(13579BDF)=YO
182 paddw xmm0, xmm4 ; xmm0=((R-Y)E+YE)=RE=R(02468ACE)
183 paddw xmm1, xmm5 ; xmm1=((R-Y)O+YO)=RO=R(13579BDF)
184 packuswb xmm0, xmm0 ; xmm0=R(02468ACE********)
185 packuswb xmm1, xmm1 ; xmm1=R(13579BDF********)
187 paddw xmm2, xmm4 ; xmm2=((G-Y)E+YE)=GE=G(02468ACE)
188 paddw xmm3, xmm5 ; xmm3=((G-Y)O+YO)=GO=G(13579BDF)
189 packuswb xmm2, xmm2 ; xmm2=G(02468ACE********)
190 packuswb xmm3, xmm3 ; xmm3=G(13579BDF********)
192 paddw xmm4, XMMWORD [wk(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE)
193 paddw xmm5, XMMWORD [wk(1)] ; xmm5=(YO+(B-Y)O)=BO=B(13579BDF)
194 packuswb xmm4, xmm4 ; xmm4=B(02468ACE********)
195 packuswb xmm5, xmm5 ; xmm5=B(13579BDF********)
197 %if RGB_PIXELSIZE == 3 ; ---------------
199 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
200 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
201 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
202 ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
204 punpcklbw xmmA, xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
205 punpcklbw xmmE, xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
206 punpcklbw xmmD, xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
210 punpcklwd xmmA, xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
211 punpckhwd xmmG, xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
213 psrldq xmmH, 2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
214 psrldq xmmE, 2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
218 punpcklwd xmmD, xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
219 punpckhwd xmmC, xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
221 psrldq xmmB, 2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
224 punpcklwd xmmE, xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
225 punpckhwd xmmF, xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
227 pshufd xmmH, xmmA, 0x4E ; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
229 punpckldq xmmA, xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
230 punpckldq xmmE, xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
231 punpckhdq xmmD, xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
233 pshufd xmmH, xmmG, 0x4E ; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
235 punpckldq xmmG, xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
236 punpckldq xmmF, xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
237 punpckhdq xmmC, xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
239 punpcklqdq xmmA, xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
240 punpcklqdq xmmD, xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
241 punpcklqdq xmmF, xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
243 cmp rcx, byte SIZEOF_XMMWORD
244 jb short .column_st32
246 test rdi, SIZEOF_XMMWORD-1
248 ; --(aligned)-------------------
249 movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
250 movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
251 movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF
253 .out1: ; --(unaligned)-----------------
254 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
255 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
256 movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF
258 add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
259 sub rcx, byte SIZEOF_XMMWORD
262 add rsi, byte SIZEOF_XMMWORD ; inptr0
263 add rbx, byte SIZEOF_XMMWORD ; inptr1
264 add rdx, byte SIZEOF_XMMWORD ; inptr2
268 lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE
269 cmp rcx, byte 2*SIZEOF_XMMWORD
270 jb short .column_st16
271 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
272 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
273 add rdi, byte 2*SIZEOF_XMMWORD ; outptr
275 sub rcx, byte 2*SIZEOF_XMMWORD
276 jmp short .column_st15
278 cmp rcx, byte SIZEOF_XMMWORD
279 jb short .column_st15
280 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
281 add rdi, byte SIZEOF_XMMWORD ; outptr
283 sub rcx, byte SIZEOF_XMMWORD
285 ; Store the lower 8 bytes of xmmA to the output when it has enough
287 cmp rcx, byte SIZEOF_MMWORD
289 movq XMM_MMWORD [rdi], xmmA
290 add rdi, byte SIZEOF_MMWORD
291 sub rcx, byte SIZEOF_MMWORD
292 psrldq xmmA, SIZEOF_MMWORD
294 ; Store the lower 4 bytes of xmmA to the output when it has enough
296 cmp rcx, byte SIZEOF_DWORD
298 movd XMM_DWORD [rdi], xmmA
299 add rdi, byte SIZEOF_DWORD
300 sub rcx, byte SIZEOF_DWORD
301 psrldq xmmA, SIZEOF_DWORD
303 ; Store the lower 2 bytes of rax to the output when it has enough
306 cmp rcx, byte SIZEOF_WORD
309 add rdi, byte SIZEOF_WORD
310 sub rcx, byte SIZEOF_WORD
313 ; Store the lower 1 byte of rax to the output when it has enough
319 %else ; RGB_PIXELSIZE == 4 ; -----------
321 %ifdef RGBX_FILLER_0XFF
322 pcmpeqb xmm6, xmm6 ; xmm6=XE=X(02468ACE********)
323 pcmpeqb xmm7, xmm7 ; xmm7=XO=X(13579BDF********)
325 pxor xmm6, xmm6 ; xmm6=XE=X(02468ACE********)
326 pxor xmm7, xmm7 ; xmm7=XO=X(13579BDF********)
328 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
329 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
330 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
331 ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
333 punpcklbw xmmA, xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
334 punpcklbw xmmE, xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
335 punpcklbw xmmB, xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
336 punpcklbw xmmF, xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
339 punpcklwd xmmA, xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
340 punpckhwd xmmC, xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
342 punpcklwd xmmB, xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
343 punpckhwd xmmG, xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
346 punpckldq xmmA, xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
347 punpckhdq xmmD, xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
349 punpckldq xmmC, xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
350 punpckhdq xmmH, xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
352 cmp rcx, byte SIZEOF_XMMWORD
353 jb short .column_st32
355 test rdi, SIZEOF_XMMWORD-1
357 ; --(aligned)-------------------
358 movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
359 movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
360 movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC
361 movntdq XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH
363 .out1: ; --(unaligned)-----------------
364 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
365 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
366 movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC
367 movdqu XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH
369 add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
370 sub rcx, byte SIZEOF_XMMWORD
373 add rsi, byte SIZEOF_XMMWORD ; inptr0
374 add rbx, byte SIZEOF_XMMWORD ; inptr1
375 add rdx, byte SIZEOF_XMMWORD ; inptr2
379 cmp rcx, byte SIZEOF_XMMWORD/2
380 jb short .column_st16
381 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
382 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
383 add rdi, byte 2*SIZEOF_XMMWORD ; outptr
386 sub rcx, byte SIZEOF_XMMWORD/2
388 cmp rcx, byte SIZEOF_XMMWORD/4
389 jb short .column_st15
390 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
391 add rdi, byte SIZEOF_XMMWORD ; outptr
393 sub rcx, byte SIZEOF_XMMWORD/4
395 ; Store two pixels (8 bytes) of xmmA to the output when it has enough
397 cmp rcx, byte SIZEOF_XMMWORD/8
399 movq MMWORD [rdi], xmmA
400 add rdi, byte SIZEOF_XMMWORD/8*4
401 sub rcx, byte SIZEOF_XMMWORD/8
402 psrldq xmmA, SIZEOF_XMMWORD/8*4
404 ; Store one pixel (4 bytes) of xmmA to the output when it has enough
408 movd XMM_DWORD [rdi], xmmA
410 %endif ; RGB_PIXELSIZE ; ---------------
420 add rsi, byte SIZEOF_JSAMPROW
421 add rbx, byte SIZEOF_JSAMPROW
422 add rdx, byte SIZEOF_JSAMPROW
423 add rdi, byte SIZEOF_JSAMPROW ; output_buf
427 sfence ; flush the write buffer
432 mov rsp, rbp ; rsp <- aligned rbp
433 pop rsp ; rsp <- original rbp
437 ; For some reason, the OS X linker does not honor the request to align the
438 ; segment unless we do this.