2 ; jdmrgext.asm - merged upsampling/color conversion (MMX)
4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
6 ; Based on the x86 SIMD extension for IJG JPEG library
7 ; Copyright (C) 1999-2006, MIYASAKA Masaru.
8 ; For conditions of distribution and use, see copyright notice in jsimdext.inc
10 ; This file should be assembled with NASM (Netwide Assembler),
11 ; can *not* be assembled with Microsoft's MASM or any compatible
12 ; assembler (including Borland's Turbo Assembler).
13 ; NASM is available from http://nasm.sourceforge.net/ or
14 ; http://sourceforge.net/project/showfiles.php?group_id=6208
18 %include "jcolsamp.inc"
20 ; --------------------------------------------------------------------------
22 ; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
25 ; jsimd_h2v1_merged_upsample_mmx (JDIMENSION output_width,
26 ; JSAMPIMAGE input_buf,
27 ; JDIMENSION in_row_group_ctr,
28 ; JSAMPARRAY output_buf);
31 %define output_width(b) (b)+8 ; JDIMENSION output_width
32 %define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
33 %define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
34 %define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
36 %define original_ebp ebp+0
37 %define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
39 %define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
42 global EXTN(jsimd_h2v1_merged_upsample_mmx)
44 EXTN(jsimd_h2v1_merged_upsample_mmx):
46 mov eax,esp ; eax = original ebp
48 and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits
50 mov ebp,esp ; ebp = aligned ebp
52 pushpic eax ; make a room for GOT address
54 ; push ecx ; need not be preserved
55 ; push edx ; need not be preserved
59 get_GOT ebx ; get GOT address
60 movpic POINTER [gotptr], ebx ; save GOT address
62 mov ecx, JDIMENSION [output_width(eax)] ; col
68 mov edi, JSAMPIMAGE [input_buf(eax)]
69 mov ecx, JDIMENSION [in_row_group_ctr(eax)]
70 mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
71 mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
72 mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
73 mov edi, JSAMPARRAY [output_buf(eax)]
74 mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0
75 mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1
76 mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2
77 mov edi, JSAMPROW [edi] ; outptr
83 movpic eax, POINTER [gotptr] ; load GOT address (eax)
85 movq mm6, MMWORD [ebx] ; mm6=Cb(01234567)
86 movq mm7, MMWORD [edx] ; mm7=Cr(01234567)
88 pxor mm1,mm1 ; mm1=(all 0's)
90 psllw mm3,7 ; mm3={0xFF80 0xFF80 0xFF80 0xFF80}
93 punpckhbw mm6,mm1 ; mm6=Cb(4567)=CbH
94 punpcklbw mm4,mm1 ; mm4=Cb(0123)=CbL
96 punpckhbw mm7,mm1 ; mm7=Cr(4567)=CrH
97 punpcklbw mm0,mm1 ; mm0=Cr(0123)=CrL
105 ; R = Y + 1.40200 * Cr
106 ; G = Y - 0.34414 * Cb - 0.71414 * Cr
107 ; B = Y + 1.77200 * Cb
109 ; (This implementation)
110 ; R = Y + 0.40200 * Cr + Cr
111 ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
112 ; B = Y - 0.22800 * Cb + Cb + Cb
114 movq mm5,mm6 ; mm5=CbH
115 movq mm2,mm4 ; mm2=CbL
116 paddw mm6,mm6 ; mm6=2*CbH
117 paddw mm4,mm4 ; mm4=2*CbL
118 movq mm1,mm7 ; mm1=CrH
119 movq mm3,mm0 ; mm3=CrL
120 paddw mm7,mm7 ; mm7=2*CrH
121 paddw mm0,mm0 ; mm0=2*CrL
123 pmulhw mm6,[GOTOFF(eax,PW_MF0228)] ; mm6=(2*CbH * -FIX(0.22800))
124 pmulhw mm4,[GOTOFF(eax,PW_MF0228)] ; mm4=(2*CbL * -FIX(0.22800))
125 pmulhw mm7,[GOTOFF(eax,PW_F0402)] ; mm7=(2*CrH * FIX(0.40200))
126 pmulhw mm0,[GOTOFF(eax,PW_F0402)] ; mm0=(2*CrL * FIX(0.40200))
128 paddw mm6,[GOTOFF(eax,PW_ONE)]
129 paddw mm4,[GOTOFF(eax,PW_ONE)]
130 psraw mm6,1 ; mm6=(CbH * -FIX(0.22800))
131 psraw mm4,1 ; mm4=(CbL * -FIX(0.22800))
132 paddw mm7,[GOTOFF(eax,PW_ONE)]
133 paddw mm0,[GOTOFF(eax,PW_ONE)]
134 psraw mm7,1 ; mm7=(CrH * FIX(0.40200))
135 psraw mm0,1 ; mm0=(CrL * FIX(0.40200))
139 paddw mm6,mm5 ; mm6=(CbH * FIX(1.77200))=(B-Y)H
140 paddw mm4,mm2 ; mm4=(CbL * FIX(1.77200))=(B-Y)L
141 paddw mm7,mm1 ; mm7=(CrH * FIX(1.40200))=(R-Y)H
142 paddw mm0,mm3 ; mm0=(CrL * FIX(1.40200))=(R-Y)L
144 movq MMWORD [wk(0)], mm6 ; wk(0)=(B-Y)H
145 movq MMWORD [wk(1)], mm7 ; wk(1)=(R-Y)H
151 pmaddwd mm5,[GOTOFF(eax,PW_MF0344_F0285)]
152 pmaddwd mm6,[GOTOFF(eax,PW_MF0344_F0285)]
155 pmaddwd mm2,[GOTOFF(eax,PW_MF0344_F0285)]
156 pmaddwd mm7,[GOTOFF(eax,PW_MF0344_F0285)]
158 paddd mm5,[GOTOFF(eax,PD_ONEHALF)]
159 paddd mm6,[GOTOFF(eax,PD_ONEHALF)]
162 paddd mm2,[GOTOFF(eax,PD_ONEHALF)]
163 paddd mm7,[GOTOFF(eax,PD_ONEHALF)]
167 packssdw mm5,mm6 ; mm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
168 packssdw mm2,mm7 ; mm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
169 psubw mm5,mm1 ; mm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
170 psubw mm2,mm3 ; mm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
172 movq MMWORD [wk(2)], mm5 ; wk(2)=(G-Y)H
179 movq mm0, MMWORD [wk(1)] ; mm0=(R-Y)H
180 movq mm2, MMWORD [wk(2)] ; mm2=(G-Y)H
181 movq mm4, MMWORD [wk(0)] ; mm4=(B-Y)H
185 movq mm7, MMWORD [esi] ; mm7=Y(01234567)
188 psrlw mm6,BYTE_BIT ; mm6={0xFF 0x00 0xFF 0x00 ..}
189 pand mm6,mm7 ; mm6=Y(0246)=YE
190 psrlw mm7,BYTE_BIT ; mm7=Y(1357)=YO
192 movq mm1,mm0 ; mm1=mm0=(R-Y)(L/H)
193 movq mm3,mm2 ; mm3=mm2=(G-Y)(L/H)
194 movq mm5,mm4 ; mm5=mm4=(B-Y)(L/H)
196 paddw mm0,mm6 ; mm0=((R-Y)+YE)=RE=(R0 R2 R4 R6)
197 paddw mm1,mm7 ; mm1=((R-Y)+YO)=RO=(R1 R3 R5 R7)
198 packuswb mm0,mm0 ; mm0=(R0 R2 R4 R6 ** ** ** **)
199 packuswb mm1,mm1 ; mm1=(R1 R3 R5 R7 ** ** ** **)
201 paddw mm2,mm6 ; mm2=((G-Y)+YE)=GE=(G0 G2 G4 G6)
202 paddw mm3,mm7 ; mm3=((G-Y)+YO)=GO=(G1 G3 G5 G7)
203 packuswb mm2,mm2 ; mm2=(G0 G2 G4 G6 ** ** ** **)
204 packuswb mm3,mm3 ; mm3=(G1 G3 G5 G7 ** ** ** **)
206 paddw mm4,mm6 ; mm4=((B-Y)+YE)=BE=(B0 B2 B4 B6)
207 paddw mm5,mm7 ; mm5=((B-Y)+YO)=BO=(B1 B3 B5 B7)
208 packuswb mm4,mm4 ; mm4=(B0 B2 B4 B6 ** ** ** **)
209 packuswb mm5,mm5 ; mm5=(B1 B3 B5 B7 ** ** ** **)
211 %if RGB_PIXELSIZE == 3 ; ---------------
213 ; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **)
214 ; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **)
215 ; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **)
216 ; mmG=(** ** ** ** ** ** ** **), mmH=(** ** ** ** ** ** ** **)
218 punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16)
219 punpcklbw mmE,mmB ; mmE=(20 01 22 03 24 05 26 07)
220 punpcklbw mmD,mmF ; mmD=(11 21 13 23 15 25 17 27)
224 punpcklwd mmA,mmE ; mmA=(00 10 20 01 02 12 22 03)
225 punpckhwd mmG,mmE ; mmG=(04 14 24 05 06 16 26 07)
227 psrlq mmH,2*BYTE_BIT ; mmH=(02 12 04 14 06 16 -- --)
228 psrlq mmE,2*BYTE_BIT ; mmE=(22 03 24 05 26 07 -- --)
232 punpcklwd mmD,mmH ; mmD=(11 21 02 12 13 23 04 14)
233 punpckhwd mmC,mmH ; mmC=(15 25 06 16 17 27 -- --)
235 psrlq mmB,2*BYTE_BIT ; mmB=(13 23 15 25 17 27 -- --)
238 punpcklwd mmE,mmB ; mmE=(22 03 13 23 24 05 15 25)
239 punpckhwd mmF,mmB ; mmF=(26 07 17 27 -- -- -- --)
241 punpckldq mmA,mmD ; mmA=(00 10 20 01 11 21 02 12)
242 punpckldq mmE,mmG ; mmE=(22 03 13 23 04 14 24 05)
243 punpckldq mmC,mmF ; mmC=(15 25 06 16 26 07 17 27)
245 cmp ecx, byte SIZEOF_MMWORD
246 jb short .column_st16
248 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
249 movq MMWORD [edi+1*SIZEOF_MMWORD], mmE
250 movq MMWORD [edi+2*SIZEOF_MMWORD], mmC
252 sub ecx, byte SIZEOF_MMWORD
255 add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr
256 add esi, byte SIZEOF_MMWORD ; inptr0
260 add ebx, byte SIZEOF_MMWORD ; inptr1
261 add edx, byte SIZEOF_MMWORD ; inptr2
266 lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
267 cmp ecx, byte 2*SIZEOF_MMWORD
269 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
270 movq MMWORD [edi+1*SIZEOF_MMWORD], mmE
272 sub ecx, byte 2*SIZEOF_MMWORD
273 add edi, byte 2*SIZEOF_MMWORD
274 jmp short .column_st4
276 cmp ecx, byte SIZEOF_MMWORD
278 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
280 sub ecx, byte SIZEOF_MMWORD
281 add edi, byte SIZEOF_MMWORD
284 cmp ecx, byte SIZEOF_DWORD
286 mov DWORD [edi+0*SIZEOF_DWORD], eax
289 sub ecx, byte SIZEOF_DWORD
290 add edi, byte SIZEOF_DWORD
292 cmp ecx, byte SIZEOF_WORD
294 mov WORD [edi+0*SIZEOF_WORD], ax
296 sub ecx, byte SIZEOF_WORD
297 add edi, byte SIZEOF_WORD
299 cmp ecx, byte SIZEOF_BYTE
301 mov BYTE [edi+0*SIZEOF_BYTE], al
303 %else ; RGB_PIXELSIZE == 4 ; -----------
305 %ifdef RGBX_FILLER_0XFF
306 pcmpeqb mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **)
307 pcmpeqb mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **)
309 pxor mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **)
310 pxor mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **)
312 ; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **)
313 ; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **)
314 ; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **)
315 ; mmG=(30 32 34 36 ** ** ** **), mmH=(31 33 35 37 ** ** ** **)
317 punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16)
318 punpcklbw mmE,mmG ; mmE=(20 30 22 32 24 34 26 36)
319 punpcklbw mmB,mmD ; mmB=(01 11 03 13 05 15 07 17)
320 punpcklbw mmF,mmH ; mmF=(21 31 23 33 25 35 27 37)
323 punpcklwd mmA,mmE ; mmA=(00 10 20 30 02 12 22 32)
324 punpckhwd mmC,mmE ; mmC=(04 14 24 34 06 16 26 36)
326 punpcklwd mmB,mmF ; mmB=(01 11 21 31 03 13 23 33)
327 punpckhwd mmG,mmF ; mmG=(05 15 25 35 07 17 27 37)
330 punpckldq mmA,mmB ; mmA=(00 10 20 30 01 11 21 31)
331 punpckhdq mmD,mmB ; mmD=(02 12 22 32 03 13 23 33)
333 punpckldq mmC,mmG ; mmC=(04 14 24 34 05 15 25 35)
334 punpckhdq mmH,mmG ; mmH=(06 16 26 36 07 17 27 37)
336 cmp ecx, byte SIZEOF_MMWORD
337 jb short .column_st16
339 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
340 movq MMWORD [edi+1*SIZEOF_MMWORD], mmD
341 movq MMWORD [edi+2*SIZEOF_MMWORD], mmC
342 movq MMWORD [edi+3*SIZEOF_MMWORD], mmH
344 sub ecx, byte SIZEOF_MMWORD
347 add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr
348 add esi, byte SIZEOF_MMWORD ; inptr0
352 add ebx, byte SIZEOF_MMWORD ; inptr1
353 add edx, byte SIZEOF_MMWORD ; inptr2
358 cmp ecx, byte SIZEOF_MMWORD/2
360 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
361 movq MMWORD [edi+1*SIZEOF_MMWORD], mmD
364 sub ecx, byte SIZEOF_MMWORD/2
365 add edi, byte 2*SIZEOF_MMWORD
367 cmp ecx, byte SIZEOF_MMWORD/4
369 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
371 sub ecx, byte SIZEOF_MMWORD/4
372 add edi, byte 1*SIZEOF_MMWORD
374 cmp ecx, byte SIZEOF_MMWORD/8
376 movd DWORD [edi+0*SIZEOF_DWORD], mmA
378 %endif ; RGB_PIXELSIZE ; ---------------
381 emms ; empty MMX state
386 ; pop edx ; need not be preserved
387 ; pop ecx ; need not be preserved
389 mov esp,ebp ; esp <- aligned ebp
390 pop esp ; esp <- original ebp
394 ; --------------------------------------------------------------------------
396 ; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
399 ; jsimd_h2v2_merged_upsample_mmx (JDIMENSION output_width,
400 ; JSAMPIMAGE input_buf,
401 ; JDIMENSION in_row_group_ctr,
402 ; JSAMPARRAY output_buf);
405 %define output_width(b) (b)+8 ; JDIMENSION output_width
406 %define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
407 %define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
408 %define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
411 global EXTN(jsimd_h2v2_merged_upsample_mmx)
413 EXTN(jsimd_h2v2_merged_upsample_mmx):
417 ; push ecx ; need not be preserved
418 ; push edx ; need not be preserved
422 mov eax, JDIMENSION [output_width(ebp)]
424 mov edi, JSAMPIMAGE [input_buf(ebp)]
425 mov ecx, JDIMENSION [in_row_group_ctr(ebp)]
426 mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
427 mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
428 mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
429 mov edi, JSAMPARRAY [output_buf(ebp)]
430 lea esi, [esi+ecx*SIZEOF_JSAMPROW]
437 push edi ; output_buf (outptr0)
438 push ecx ; in_row_group_ctr
440 push eax ; output_width
442 call near EXTN(jsimd_h2v1_merged_upsample_mmx)
444 add esi, byte SIZEOF_JSAMPROW ; inptr01
445 add edi, byte SIZEOF_JSAMPROW ; outptr1
446 mov POINTER [ebx+0*SIZEOF_POINTER], esi
447 mov POINTER [ebx-1*SIZEOF_POINTER], edi
449 call near EXTN(jsimd_h2v1_merged_upsample_mmx)
451 add esp, byte 7*SIZEOF_DWORD
455 ; pop edx ; need not be preserved
456 ; pop ecx ; need not be preserved
461 ; For some reason, the OS X linker does not honor the request to align the
462 ; segment unless we do this.