media/libjpeg/simd/jcgryss2.asm@b8a032363ba2
media/libjpeg/simd/jcgryss2.asm
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 ;
2 ; jcgryss2.asm - grayscale colorspace conversion (SSE2)
3 ;
4 ; x86 SIMD extension for IJG JPEG library
5 ; Copyright (C) 1999-2006, MIYASAKA Masaru.
6 ; Copyright (C) 2011, D. R. Commander.
7 ; For conditions of distribution and use, see copyright notice in jsimdext.inc
8 ;
9 ; This file should be assembled with NASM (Netwide Assembler),
10 ; can *not* be assembled with Microsoft's MASM or any compatible
11 ; assembler (including Borland's Turbo Assembler).
12 ; NASM is available from http://nasm.sourceforge.net/ or
13 ; http://sourceforge.net/project/showfiles.php?group_id=6208
14 ;
15 ; [TAB8]
17 %include "jcolsamp.inc"
19 ; --------------------------------------------------------------------------
20 ;
21 ; Convert some rows of samples to the output colorspace.
22 ;
23 ; GLOBAL(void)
24 ; jsimd_rgb_gray_convert_sse2 (JDIMENSION img_width,
25 ; JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
26 ; JDIMENSION output_row, int num_rows);
27 ;
29 %define img_width(b) (b)+8 ; JDIMENSION img_width
30 %define input_buf(b) (b)+12 ; JSAMPARRAY input_buf
31 %define output_buf(b) (b)+16 ; JSAMPIMAGE output_buf
32 %define output_row(b) (b)+20 ; JDIMENSION output_row
33 %define num_rows(b) (b)+24 ; int num_rows
35 %define original_ebp ebp+0
36 %define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
37 %define WK_NUM 2
38 %define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
40 align 16
42 global EXTN(jsimd_rgb_gray_convert_sse2)
44 EXTN(jsimd_rgb_gray_convert_sse2):
45 push ebp
46 mov eax,esp ; eax = original ebp
47 sub esp, byte 4
48 and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
49 mov [esp],eax
50 mov ebp,esp ; ebp = aligned ebp
51 lea esp, [wk(0)]
52 pushpic eax ; make a room for GOT address
53 push ebx
54 ; push ecx ; need not be preserved
55 ; push edx ; need not be preserved
56 push esi
57 push edi
59 get_GOT ebx ; get GOT address
60 movpic POINTER [gotptr], ebx ; save GOT address
62 mov ecx, JDIMENSION [img_width(eax)]
63 test ecx,ecx
64 jz near .return
66 push ecx
68 mov esi, JSAMPIMAGE [output_buf(eax)]
69 mov ecx, JDIMENSION [output_row(eax)]
70 mov edi, JSAMPARRAY [esi+0*SIZEOF_JSAMPARRAY]
71 lea edi, [edi+ecx*SIZEOF_JSAMPROW]
73 pop ecx
75 mov esi, JSAMPARRAY [input_buf(eax)]
76 mov eax, INT [num_rows(eax)]
77 test eax,eax
78 jle near .return
79 alignx 16,7
80 .rowloop:
81 pushpic eax
82 push edi
83 push esi
84 push ecx ; col
86 mov esi, JSAMPROW [esi] ; inptr
87 mov edi, JSAMPROW [edi] ; outptr0
88 movpic eax, POINTER [gotptr] ; load GOT address (eax)
90 cmp ecx, byte SIZEOF_XMMWORD
91 jae near .columnloop
92 alignx 16,7
94 %if RGB_PIXELSIZE == 3 ; ---------------
96 .column_ld1:
97 push eax
98 push edx
99 lea ecx,[ecx+ecx*2] ; imul ecx,RGB_PIXELSIZE
100 test cl, SIZEOF_BYTE
101 jz short .column_ld2
102 sub ecx, byte SIZEOF_BYTE
103 movzx eax, BYTE [esi+ecx]
104 .column_ld2:
105 test cl, SIZEOF_WORD
106 jz short .column_ld4
107 sub ecx, byte SIZEOF_WORD
108 movzx edx, WORD [esi+ecx]
109 shl eax, WORD_BIT
110 or eax,edx
111 .column_ld4:
112 movd xmmA,eax
113 pop edx
114 pop eax
115 test cl, SIZEOF_DWORD
116 jz short .column_ld8
117 sub ecx, byte SIZEOF_DWORD
118 movd xmmF, XMM_DWORD [esi+ecx]
119 pslldq xmmA, SIZEOF_DWORD
120 por xmmA,xmmF
121 .column_ld8:
122 test cl, SIZEOF_MMWORD
123 jz short .column_ld16
124 sub ecx, byte SIZEOF_MMWORD
125 movq xmmB, XMM_MMWORD [esi+ecx]
126 pslldq xmmA, SIZEOF_MMWORD
127 por xmmA,xmmB
128 .column_ld16:
129 test cl, SIZEOF_XMMWORD
130 jz short .column_ld32
131 movdqa xmmF,xmmA
132 movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
133 mov ecx, SIZEOF_XMMWORD
134 jmp short .rgb_gray_cnv
135 .column_ld32:
136 test cl, 2*SIZEOF_XMMWORD
137 mov ecx, SIZEOF_XMMWORD
138 jz short .rgb_gray_cnv
139 movdqa xmmB,xmmA
140 movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
141 movdqu xmmF, XMMWORD [esi+1*SIZEOF_XMMWORD]
142 jmp short .rgb_gray_cnv
143 alignx 16,7
145 .columnloop:
146 movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
147 movdqu xmmF, XMMWORD [esi+1*SIZEOF_XMMWORD]
148 movdqu xmmB, XMMWORD [esi+2*SIZEOF_XMMWORD]
150 .rgb_gray_cnv:
151 ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
152 ; xmmF=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
153 ; xmmB=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
155 movdqa xmmG,xmmA
156 pslldq xmmA,8 ; xmmA=(-- -- -- -- -- -- -- -- 00 10 20 01 11 21 02 12)
157 psrldq xmmG,8 ; xmmG=(22 03 13 23 04 14 24 05 -- -- -- -- -- -- -- --)
159 punpckhbw xmmA,xmmF ; xmmA=(00 08 10 18 20 28 01 09 11 19 21 29 02 0A 12 1A)
160 pslldq xmmF,8 ; xmmF=(-- -- -- -- -- -- -- -- 15 25 06 16 26 07 17 27)
162 punpcklbw xmmG,xmmB ; xmmG=(22 2A 03 0B 13 1B 23 2B 04 0C 14 1C 24 2C 05 0D)
163 punpckhbw xmmF,xmmB ; xmmF=(15 1D 25 2D 06 0E 16 1E 26 2E 07 0F 17 1F 27 2F)
165 movdqa xmmD,xmmA
166 pslldq xmmA,8 ; xmmA=(-- -- -- -- -- -- -- -- 00 08 10 18 20 28 01 09)
167 psrldq xmmD,8 ; xmmD=(11 19 21 29 02 0A 12 1A -- -- -- -- -- -- -- --)
169 punpckhbw xmmA,xmmG ; xmmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 01 05 09 0D)
170 pslldq xmmG,8 ; xmmG=(-- -- -- -- -- -- -- -- 22 2A 03 0B 13 1B 23 2B)
172 punpcklbw xmmD,xmmF ; xmmD=(11 15 19 1D 21 25 29 2D 02 06 0A 0E 12 16 1A 1E)
173 punpckhbw xmmG,xmmF ; xmmG=(22 26 2A 2E 03 07 0B 0F 13 17 1B 1F 23 27 2B 2F)
175 movdqa xmmE,xmmA
176 pslldq xmmA,8 ; xmmA=(-- -- -- -- -- -- -- -- 00 04 08 0C 10 14 18 1C)
177 psrldq xmmE,8 ; xmmE=(20 24 28 2C 01 05 09 0D -- -- -- -- -- -- -- --)
179 punpckhbw xmmA,xmmD ; xmmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E)
180 pslldq xmmD,8 ; xmmD=(-- -- -- -- -- -- -- -- 11 15 19 1D 21 25 29 2D)
182 punpcklbw xmmE,xmmG ; xmmE=(20 22 24 26 28 2A 2C 2E 01 03 05 07 09 0B 0D 0F)
183 punpckhbw xmmD,xmmG ; xmmD=(11 13 15 17 19 1B 1D 1F 21 23 25 27 29 2B 2D 2F)
185 pxor xmmH,xmmH
187 movdqa xmmC,xmmA
188 punpcklbw xmmA,xmmH ; xmmA=(00 02 04 06 08 0A 0C 0E)
189 punpckhbw xmmC,xmmH ; xmmC=(10 12 14 16 18 1A 1C 1E)
191 movdqa xmmB,xmmE
192 punpcklbw xmmE,xmmH ; xmmE=(20 22 24 26 28 2A 2C 2E)
193 punpckhbw xmmB,xmmH ; xmmB=(01 03 05 07 09 0B 0D 0F)
195 movdqa xmmF,xmmD
196 punpcklbw xmmD,xmmH ; xmmD=(11 13 15 17 19 1B 1D 1F)
197 punpckhbw xmmF,xmmH ; xmmF=(21 23 25 27 29 2B 2D 2F)
199 %else ; RGB_PIXELSIZE == 4 ; -----------
201 .column_ld1:
202 test cl, SIZEOF_XMMWORD/16
203 jz short .column_ld2
204 sub ecx, byte SIZEOF_XMMWORD/16
205 movd xmmA, XMM_DWORD [esi+ecx*RGB_PIXELSIZE]
206 .column_ld2:
207 test cl, SIZEOF_XMMWORD/8
208 jz short .column_ld4
209 sub ecx, byte SIZEOF_XMMWORD/8
210 movq xmmE, XMM_MMWORD [esi+ecx*RGB_PIXELSIZE]
211 pslldq xmmA, SIZEOF_MMWORD
212 por xmmA,xmmE
213 .column_ld4:
214 test cl, SIZEOF_XMMWORD/4
215 jz short .column_ld8
216 sub ecx, byte SIZEOF_XMMWORD/4
217 movdqa xmmE,xmmA
218 movdqu xmmA, XMMWORD [esi+ecx*RGB_PIXELSIZE]
219 .column_ld8:
220 test cl, SIZEOF_XMMWORD/2
221 mov ecx, SIZEOF_XMMWORD
222 jz short .rgb_gray_cnv
223 movdqa xmmF,xmmA
224 movdqa xmmH,xmmE
225 movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
226 movdqu xmmE, XMMWORD [esi+1*SIZEOF_XMMWORD]
227 jmp short .rgb_gray_cnv
228 alignx 16,7
230 .columnloop:
231 movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
232 movdqu xmmE, XMMWORD [esi+1*SIZEOF_XMMWORD]
233 movdqu xmmF, XMMWORD [esi+2*SIZEOF_XMMWORD]
234 movdqu xmmH, XMMWORD [esi+3*SIZEOF_XMMWORD]
236 .rgb_gray_cnv:
237 ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
238 ; xmmE=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
239 ; xmmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
240 ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
242 movdqa xmmD,xmmA
243 punpcklbw xmmA,xmmE ; xmmA=(00 04 10 14 20 24 30 34 01 05 11 15 21 25 31 35)
244 punpckhbw xmmD,xmmE ; xmmD=(02 06 12 16 22 26 32 36 03 07 13 17 23 27 33 37)
246 movdqa xmmC,xmmF
247 punpcklbw xmmF,xmmH ; xmmF=(08 0C 18 1C 28 2C 38 3C 09 0D 19 1D 29 2D 39 3D)
248 punpckhbw xmmC,xmmH ; xmmC=(0A 0E 1A 1E 2A 2E 3A 3E 0B 0F 1B 1F 2B 2F 3B 3F)
250 movdqa xmmB,xmmA
251 punpcklwd xmmA,xmmF ; xmmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 30 34 38 3C)
252 punpckhwd xmmB,xmmF ; xmmB=(01 05 09 0D 11 15 19 1D 21 25 29 2D 31 35 39 3D)
254 movdqa xmmG,xmmD
255 punpcklwd xmmD,xmmC ; xmmD=(02 06 0A 0E 12 16 1A 1E 22 26 2A 2E 32 36 3A 3E)
256 punpckhwd xmmG,xmmC ; xmmG=(03 07 0B 0F 13 17 1B 1F 23 27 2B 2F 33 37 3B 3F)
258 movdqa xmmE,xmmA
259 punpcklbw xmmA,xmmD ; xmmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E)
260 punpckhbw xmmE,xmmD ; xmmE=(20 22 24 26 28 2A 2C 2E 30 32 34 36 38 3A 3C 3E)
262 movdqa xmmH,xmmB
263 punpcklbw xmmB,xmmG ; xmmB=(01 03 05 07 09 0B 0D 0F 11 13 15 17 19 1B 1D 1F)
264 punpckhbw xmmH,xmmG ; xmmH=(21 23 25 27 29 2B 2D 2F 31 33 35 37 39 3B 3D 3F)
266 pxor xmmF,xmmF
268 movdqa xmmC,xmmA
269 punpcklbw xmmA,xmmF ; xmmA=(00 02 04 06 08 0A 0C 0E)
270 punpckhbw xmmC,xmmF ; xmmC=(10 12 14 16 18 1A 1C 1E)
272 movdqa xmmD,xmmB
273 punpcklbw xmmB,xmmF ; xmmB=(01 03 05 07 09 0B 0D 0F)
274 punpckhbw xmmD,xmmF ; xmmD=(11 13 15 17 19 1B 1D 1F)
276 movdqa xmmG,xmmE
277 punpcklbw xmmE,xmmF ; xmmE=(20 22 24 26 28 2A 2C 2E)
278 punpckhbw xmmG,xmmF ; xmmG=(30 32 34 36 38 3A 3C 3E)
280 punpcklbw xmmF,xmmH
281 punpckhbw xmmH,xmmH
282 psrlw xmmF,BYTE_BIT ; xmmF=(21 23 25 27 29 2B 2D 2F)
283 psrlw xmmH,BYTE_BIT ; xmmH=(31 33 35 37 39 3B 3D 3F)
285 %endif ; RGB_PIXELSIZE ; ---------------
287 ; xmm0=R(02468ACE)=RE, xmm2=G(02468ACE)=GE, xmm4=B(02468ACE)=BE
288 ; xmm1=R(13579BDF)=RO, xmm3=G(13579BDF)=GO, xmm5=B(13579BDF)=BO
290 ; (Original)
291 ; Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
292 ;
293 ; (This implementation)
294 ; Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G
296 movdqa xmm6,xmm1
297 punpcklwd xmm1,xmm3
298 punpckhwd xmm6,xmm3
299 pmaddwd xmm1,[GOTOFF(eax,PW_F0299_F0337)] ; xmm1=ROL*FIX(0.299)+GOL*FIX(0.337)
300 pmaddwd xmm6,[GOTOFF(eax,PW_F0299_F0337)] ; xmm6=ROH*FIX(0.299)+GOH*FIX(0.337)
302 movdqa xmm7, xmm6 ; xmm7=ROH*FIX(0.299)+GOH*FIX(0.337)
304 movdqa xmm6,xmm0
305 punpcklwd xmm0,xmm2
306 punpckhwd xmm6,xmm2
307 pmaddwd xmm0,[GOTOFF(eax,PW_F0299_F0337)] ; xmm0=REL*FIX(0.299)+GEL*FIX(0.337)
308 pmaddwd xmm6,[GOTOFF(eax,PW_F0299_F0337)] ; xmm6=REH*FIX(0.299)+GEH*FIX(0.337)
310 movdqa XMMWORD [wk(0)], xmm0 ; wk(0)=REL*FIX(0.299)+GEL*FIX(0.337)
311 movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=REH*FIX(0.299)+GEH*FIX(0.337)
313 movdqa xmm0, xmm5 ; xmm0=BO
314 movdqa xmm6, xmm4 ; xmm6=BE
316 movdqa xmm4,xmm0
317 punpcklwd xmm0,xmm3
318 punpckhwd xmm4,xmm3
319 pmaddwd xmm0,[GOTOFF(eax,PW_F0114_F0250)] ; xmm0=BOL*FIX(0.114)+GOL*FIX(0.250)
320 pmaddwd xmm4,[GOTOFF(eax,PW_F0114_F0250)] ; xmm4=BOH*FIX(0.114)+GOH*FIX(0.250)
322 movdqa xmm3,[GOTOFF(eax,PD_ONEHALF)] ; xmm3=[PD_ONEHALF]
324 paddd xmm0, xmm1
325 paddd xmm4, xmm7
326 paddd xmm0,xmm3
327 paddd xmm4,xmm3
328 psrld xmm0,SCALEBITS ; xmm0=YOL
329 psrld xmm4,SCALEBITS ; xmm4=YOH
330 packssdw xmm0,xmm4 ; xmm0=YO
332 movdqa xmm4,xmm6
333 punpcklwd xmm6,xmm2
334 punpckhwd xmm4,xmm2
335 pmaddwd xmm6,[GOTOFF(eax,PW_F0114_F0250)] ; xmm6=BEL*FIX(0.114)+GEL*FIX(0.250)
336 pmaddwd xmm4,[GOTOFF(eax,PW_F0114_F0250)] ; xmm4=BEH*FIX(0.114)+GEH*FIX(0.250)
338 movdqa xmm2,[GOTOFF(eax,PD_ONEHALF)] ; xmm2=[PD_ONEHALF]
340 paddd xmm6, XMMWORD [wk(0)]
341 paddd xmm4, XMMWORD [wk(1)]
342 paddd xmm6,xmm2
343 paddd xmm4,xmm2
344 psrld xmm6,SCALEBITS ; xmm6=YEL
345 psrld xmm4,SCALEBITS ; xmm4=YEH
346 packssdw xmm6,xmm4 ; xmm6=YE
348 psllw xmm0,BYTE_BIT
349 por xmm6,xmm0 ; xmm6=Y
350 movdqa XMMWORD [edi], xmm6 ; Save Y
352 sub ecx, byte SIZEOF_XMMWORD
353 add esi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; inptr
354 add edi, byte SIZEOF_XMMWORD ; outptr0
355 cmp ecx, byte SIZEOF_XMMWORD
356 jae near .columnloop
357 test ecx,ecx
358 jnz near .column_ld1
360 pop ecx ; col
361 pop esi
362 pop edi
363 poppic eax
365 add esi, byte SIZEOF_JSAMPROW ; input_buf
366 add edi, byte SIZEOF_JSAMPROW
367 dec eax ; num_rows
368 jg near .rowloop
370 .return:
371 pop edi
372 pop esi
373 ; pop edx ; need not be preserved
374 ; pop ecx ; need not be preserved
375 pop ebx
376 mov esp,ebp ; esp <- aligned ebp
377 pop esp ; esp <- original ebp
378 pop ebp
379 ret
381 ; For some reason, the OS X linker does not honor the request to align the
382 ; segment unless we do this.
383 align 16
