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.
7 ; Copyright (C) 2023, Aliaksiej Kandracienka.
9 ; Based on the x86 SIMD extension for IJG JPEG library
10 ; Copyright (C) 1999-2006, MIYASAKA Masaru.
11 ; For conditions of distribution and use, see copyright notice in jsimdext.inc
13 ; This file should be assembled with NASM (Netwide Assembler),
14 ; can *not* be assembled with Microsoft's MASM or any compatible
15 ; assembler (including Borland's Turbo Assembler).
16 ; NASM is available from http://nasm.sourceforge.net/ or
17 ; http://sourceforge.net/project/showfiles.php?group_id=6208
19 %include "jcolsamp.inc"
21 ; --------------------------------------------------------------------------
23 ; Convert some rows of samples to the output colorspace.
26 ; jsimd_ycc_rgb_convert_sse2(JDIMENSION out_width, JSAMPIMAGE input_buf,
27 ; JDIMENSION input_row, JSAMPARRAY output_buf,
31 ; r10d = JDIMENSION out_width
32 ; r11 = JSAMPIMAGE input_buf
33 ; r12d = JDIMENSION input_row
34 ; r13 = JSAMPARRAY output_buf
37 %define wk(i) r15 - (WK_NUM - (i)) * SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
41 GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_sse2)
43 EXTN(jsimd_ycc_rgb_convert_sse2):
47 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
48 ; Allocate stack space for wk array. r15 is used to access it.
50 sub rsp, byte (SIZEOF_XMMWORD * WK_NUM)
54 mov ecx, r10d ; num_cols
62 mov rsip, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY]
63 mov rbxp, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY]
64 mov rdxp, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY]
65 lea rsi, [rsi+rcx*SIZEOF_JSAMPROW]
66 lea rbx, [rbx+rcx*SIZEOF_JSAMPROW]
67 lea rdx, [rdx+rcx*SIZEOF_JSAMPROW]
83 mov rsip, JSAMPROW [rsi] ; inptr0
84 mov rbxp, JSAMPROW [rbx] ; inptr1
85 mov rdxp, JSAMPROW [rdx] ; inptr2
86 mov rdip, JSAMPROW [rdi] ; outptr
89 movdqa xmm5, XMMWORD [rbx] ; xmm5=Cb(0123456789ABCDEF)
90 movdqa xmm1, XMMWORD [rdx] ; xmm1=Cr(0123456789ABCDEF)
95 psllw xmm7, 7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
96 movdqa xmm0, xmm4 ; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..}
98 pand xmm4, xmm5 ; xmm4=Cb(02468ACE)=CbE
99 psrlw xmm5, BYTE_BIT ; xmm5=Cb(13579BDF)=CbO
100 pand xmm0, xmm1 ; xmm0=Cr(02468ACE)=CrE
101 psrlw xmm1, BYTE_BIT ; xmm1=Cr(13579BDF)=CrO
109 ; R = Y + 1.40200 * Cr
110 ; G = Y - 0.34414 * Cb - 0.71414 * Cr
111 ; B = Y + 1.77200 * Cb
113 ; (This implementation)
114 ; R = Y + 0.40200 * Cr + Cr
115 ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
116 ; B = Y - 0.22800 * Cb + Cb + Cb
118 movdqa xmm2, xmm4 ; xmm2=CbE
119 movdqa xmm3, xmm5 ; xmm3=CbO
120 paddw xmm4, xmm4 ; xmm4=2*CbE
121 paddw xmm5, xmm5 ; xmm5=2*CbO
122 movdqa xmm6, xmm0 ; xmm6=CrE
123 movdqa xmm7, xmm1 ; xmm7=CrO
124 paddw xmm0, xmm0 ; xmm0=2*CrE
125 paddw xmm1, xmm1 ; xmm1=2*CrO
127 pmulhw xmm4, [rel PW_MF0228] ; xmm4=(2*CbE * -FIX(0.22800))
128 pmulhw xmm5, [rel PW_MF0228] ; xmm5=(2*CbO * -FIX(0.22800))
129 pmulhw xmm0, [rel PW_F0402] ; xmm0=(2*CrE * FIX(0.40200))
130 pmulhw xmm1, [rel PW_F0402] ; xmm1=(2*CrO * FIX(0.40200))
132 paddw xmm4, [rel PW_ONE]
133 paddw xmm5, [rel PW_ONE]
134 psraw xmm4, 1 ; xmm4=(CbE * -FIX(0.22800))
135 psraw xmm5, 1 ; xmm5=(CbO * -FIX(0.22800))
136 paddw xmm0, [rel PW_ONE]
137 paddw xmm1, [rel PW_ONE]
138 psraw xmm0, 1 ; xmm0=(CrE * FIX(0.40200))
139 psraw xmm1, 1 ; xmm1=(CrO * FIX(0.40200))
143 paddw xmm4, xmm2 ; xmm4=(CbE * FIX(1.77200))=(B-Y)E
144 paddw xmm5, xmm3 ; xmm5=(CbO * FIX(1.77200))=(B-Y)O
145 paddw xmm0, xmm6 ; xmm0=(CrE * FIX(1.40200))=(R-Y)E
146 paddw xmm1, xmm7 ; xmm1=(CrO * FIX(1.40200))=(R-Y)O
148 movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=(B-Y)E
149 movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(B-Y)O
155 pmaddwd xmm2, [rel PW_MF0344_F0285]
156 pmaddwd xmm4, [rel PW_MF0344_F0285]
159 pmaddwd xmm3, [rel PW_MF0344_F0285]
160 pmaddwd xmm5, [rel PW_MF0344_F0285]
162 paddd xmm2, [rel PD_ONEHALF]
163 paddd xmm4, [rel PD_ONEHALF]
164 psrad xmm2, SCALEBITS
165 psrad xmm4, SCALEBITS
166 paddd xmm3, [rel PD_ONEHALF]
167 paddd xmm5, [rel PD_ONEHALF]
168 psrad xmm3, SCALEBITS
169 psrad xmm5, SCALEBITS
171 packssdw xmm2, xmm4 ; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
172 packssdw xmm3, xmm5 ; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
173 psubw xmm2, xmm6 ; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
174 psubw xmm3, xmm7 ; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
176 movdqa xmm5, XMMWORD [rsi] ; xmm5=Y(0123456789ABCDEF)
179 psrlw xmm4, BYTE_BIT ; xmm4={0xFF 0x00 0xFF 0x00 ..}
180 pand xmm4, xmm5 ; xmm4=Y(02468ACE)=YE
181 psrlw xmm5, BYTE_BIT ; xmm5=Y(13579BDF)=YO
183 paddw xmm0, xmm4 ; xmm0=((R-Y)E+YE)=RE=R(02468ACE)
184 paddw xmm1, xmm5 ; xmm1=((R-Y)O+YO)=RO=R(13579BDF)
185 packuswb xmm0, xmm0 ; xmm0=R(02468ACE********)
186 packuswb xmm1, xmm1 ; xmm1=R(13579BDF********)
188 paddw xmm2, xmm4 ; xmm2=((G-Y)E+YE)=GE=G(02468ACE)
189 paddw xmm3, xmm5 ; xmm3=((G-Y)O+YO)=GO=G(13579BDF)
190 packuswb xmm2, xmm2 ; xmm2=G(02468ACE********)
191 packuswb xmm3, xmm3 ; xmm3=G(13579BDF********)
193 paddw xmm4, XMMWORD [wk(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE)
194 paddw xmm5, XMMWORD [wk(1)] ; xmm5=(YO+(B-Y)O)=BO=B(13579BDF)
195 packuswb xmm4, xmm4 ; xmm4=B(02468ACE********)
196 packuswb xmm5, xmm5 ; xmm5=B(13579BDF********)
198 %if RGB_PIXELSIZE == 3 ; ---------------
200 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
201 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
202 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
203 ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
205 punpcklbw xmmA, xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
206 punpcklbw xmmE, xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
207 punpcklbw xmmD, xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
211 punpcklwd xmmA, xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
212 punpckhwd xmmG, xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
214 psrldq xmmH, 2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
215 psrldq xmmE, 2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
219 punpcklwd xmmD, xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
220 punpckhwd xmmC, xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
222 psrldq xmmB, 2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
225 punpcklwd xmmE, xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
226 punpckhwd xmmF, xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
228 pshufd xmmH, xmmA, 0x4E ; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
230 punpckldq xmmA, xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
231 punpckldq xmmE, xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
232 punpckhdq xmmD, xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
234 pshufd xmmH, xmmG, 0x4E ; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
236 punpckldq xmmG, xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
237 punpckldq xmmF, xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
238 punpckhdq xmmC, xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
240 punpcklqdq xmmA, xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
241 punpcklqdq xmmD, xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
242 punpcklqdq xmmF, xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
244 cmp rcx, byte SIZEOF_XMMWORD
245 jb short .column_st32
247 test rdi, SIZEOF_XMMWORD-1
249 ; --(aligned)-------------------
250 movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
251 movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
252 movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF
254 .out1: ; --(unaligned)-----------------
255 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
256 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
257 movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF
259 add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
260 sub rcx, byte SIZEOF_XMMWORD
263 add rsi, byte SIZEOF_XMMWORD ; inptr0
264 add rbx, byte SIZEOF_XMMWORD ; inptr1
265 add rdx, byte SIZEOF_XMMWORD ; inptr2
269 lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE
270 cmp rcx, byte 2*SIZEOF_XMMWORD
271 jb short .column_st16
272 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
273 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
274 add rdi, byte 2*SIZEOF_XMMWORD ; outptr
276 sub rcx, byte 2*SIZEOF_XMMWORD
277 jmp short .column_st15
279 cmp rcx, byte SIZEOF_XMMWORD
280 jb short .column_st15
281 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
282 add rdi, byte SIZEOF_XMMWORD ; outptr
284 sub rcx, byte SIZEOF_XMMWORD
286 ; Store the lower 8 bytes of xmmA to the output when it has enough
288 cmp rcx, byte SIZEOF_MMWORD
290 movq XMM_MMWORD [rdi], xmmA
291 add rdi, byte SIZEOF_MMWORD
292 sub rcx, byte SIZEOF_MMWORD
293 psrldq xmmA, SIZEOF_MMWORD
295 ; Store the lower 4 bytes of xmmA to the output when it has enough
297 cmp rcx, byte SIZEOF_DWORD
299 movd XMM_DWORD [rdi], xmmA
300 add rdi, byte SIZEOF_DWORD
301 sub rcx, byte SIZEOF_DWORD
302 psrldq xmmA, SIZEOF_DWORD
304 ; Store the lower 2 bytes of rax to the output when it has enough
307 cmp rcx, byte SIZEOF_WORD
310 add rdi, byte SIZEOF_WORD
311 sub rcx, byte SIZEOF_WORD
314 ; Store the lower 1 byte of rax to the output when it has enough
320 %else ; RGB_PIXELSIZE == 4 ; -----------
322 %ifdef RGBX_FILLER_0XFF
323 pcmpeqb xmm6, xmm6 ; xmm6=XE=X(02468ACE********)
324 pcmpeqb xmm7, xmm7 ; xmm7=XO=X(13579BDF********)
326 pxor xmm6, xmm6 ; xmm6=XE=X(02468ACE********)
327 pxor xmm7, xmm7 ; xmm7=XO=X(13579BDF********)
329 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
330 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
331 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
332 ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
334 punpcklbw xmmA, xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
335 punpcklbw xmmE, xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
336 punpcklbw xmmB, xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
337 punpcklbw xmmF, xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
340 punpcklwd xmmA, xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
341 punpckhwd xmmC, xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
343 punpcklwd xmmB, xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
344 punpckhwd xmmG, xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
347 punpckldq xmmA, xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
348 punpckhdq xmmD, xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
350 punpckldq xmmC, xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
351 punpckhdq xmmH, xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
353 cmp rcx, byte SIZEOF_XMMWORD
354 jb short .column_st32
356 test rdi, SIZEOF_XMMWORD-1
358 ; --(aligned)-------------------
359 movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
360 movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
361 movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC
362 movntdq XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH
364 .out1: ; --(unaligned)-----------------
365 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
366 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
367 movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC
368 movdqu XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH
370 add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
371 sub rcx, byte SIZEOF_XMMWORD
374 add rsi, byte SIZEOF_XMMWORD ; inptr0
375 add rbx, byte SIZEOF_XMMWORD ; inptr1
376 add rdx, byte SIZEOF_XMMWORD ; inptr2
380 cmp rcx, byte SIZEOF_XMMWORD/2
381 jb short .column_st16
382 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
383 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
384 add rdi, byte 2*SIZEOF_XMMWORD ; outptr
387 sub rcx, byte SIZEOF_XMMWORD/2
389 cmp rcx, byte SIZEOF_XMMWORD/4
390 jb short .column_st15
391 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
392 add rdi, byte SIZEOF_XMMWORD ; outptr
394 sub rcx, byte SIZEOF_XMMWORD/4
396 ; Store two pixels (8 bytes) of xmmA to the output when it has enough
398 cmp rcx, byte SIZEOF_XMMWORD/8
400 movq MMWORD [rdi], xmmA
401 add rdi, byte SIZEOF_XMMWORD/8*4
402 sub rcx, byte SIZEOF_XMMWORD/8
403 psrldq xmmA, SIZEOF_XMMWORD/8*4
405 ; Store one pixel (4 bytes) of xmmA to the output when it has enough
409 movd XMM_DWORD [rdi], xmmA
411 %endif ; RGB_PIXELSIZE ; ---------------
421 add rsi, byte SIZEOF_JSAMPROW
422 add rbx, byte SIZEOF_JSAMPROW
423 add rdx, byte SIZEOF_JSAMPROW
424 add rdi, byte SIZEOF_JSAMPROW ; output_buf
428 sfence ; flush the write buffer
438 ; For some reason, the OS X linker does not honor the request to align the
439 ; segment unless we do this.