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gerrit-public.fairphone.software / platform / external / libjpeg-turbo / b24a7228ed5909cb267fc42ca2d2e02add79c23e / . / simd / jdmrgss2.asm
blob: f190468a5eff937a24d79e4afb92298d4e2ae520 [file] [log] [blame]
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]1;
2; jdmrgss2.asm - merged upsampling/color conversion (SSE2)
3;
DRC8126d0c2012-06-15 21:54:45 +0000[diff] [blame]4; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]5;
6; Based on
7; x86 SIMD extension for IJG JPEG library
8; Copyright (C) 1999-2006, MIYASAKA Masaru.
9; For conditions of distribution and use, see copyright notice in jsimdext.inc
10;
11; This file should be assembled with NASM (Netwide Assembler),
12; can *not* be assembled with Microsoft's MASM or any compatible
13; assembler (including Borland's Turbo Assembler).
14; NASM is available from http://nasm.sourceforge.net/ or
15; http://sourceforge.net/project/showfiles.php?group_id=6208
16;
17; [TAB8]
18
19%include "jcolsamp.inc"
20
21; --------------------------------------------------------------------------
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]22;
23; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
24;
25; GLOBAL(void)
26; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width,
27; JSAMPIMAGE input_buf,
28; JDIMENSION in_row_group_ctr,
29; JSAMPARRAY output_buf);
30;
31
32%define output_width(b) (b)+8 ; JDIMENSION output_width
33%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
34%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
35%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
36
37%define original_ebp ebp+0
38%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
39%define WK_NUM 3
40%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
41
42 align 16
43 global EXTN(jsimd_h2v1_merged_upsample_sse2)
44
45EXTN(jsimd_h2v1_merged_upsample_sse2):
46 push ebp
47 mov eax,esp ; eax = original ebp
48 sub esp, byte 4
49 and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
50 mov [esp],eax
51 mov ebp,esp ; ebp = aligned ebp
52 lea esp, [wk(0)]
53 pushpic eax ; make a room for GOT address
54 push ebx
55; push ecx ; need not be preserved
56; push edx ; need not be preserved
57 push esi
58 push edi
59
60 get_GOT ebx ; get GOT address
61 movpic POINTER [gotptr], ebx ; save GOT address
62
63 mov ecx, JDIMENSION [output_width(eax)] ; col
64 test ecx,ecx
65 jz near .return
66
67 push ecx
68
69 mov edi, JSAMPIMAGE [input_buf(eax)]
70 mov ecx, JDIMENSION [in_row_group_ctr(eax)]
71 mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
72 mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
73 mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
74 mov edi, JSAMPARRAY [output_buf(eax)]
75 mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0
76 mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1
77 mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2
78 mov edi, JSAMPROW [edi] ; outptr
79
80 pop ecx ; col
81
82 alignx 16,7
83.columnloop:
84 movpic eax, POINTER [gotptr] ; load GOT address (eax)
85
86 movdqa xmm6, XMMWORD [ebx] ; xmm6=Cb(0123456789ABCDEF)
87 movdqa xmm7, XMMWORD [edx] ; xmm7=Cr(0123456789ABCDEF)
88
89 pxor xmm1,xmm1 ; xmm1=(all 0's)
90 pcmpeqw xmm3,xmm3
91 psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..}
92
93 movdqa xmm4,xmm6
94 punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH
95 punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL
96 movdqa xmm0,xmm7
97 punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH
98 punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL
99
100 paddw xmm6,xmm3
101 paddw xmm4,xmm3
102 paddw xmm7,xmm3
103 paddw xmm0,xmm3
104
105 ; (Original)
106 ; R = Y + 1.40200 * Cr
107 ; G = Y - 0.34414 * Cb - 0.71414 * Cr
108 ; B = Y + 1.77200 * Cb
109 ;
110 ; (This implementation)
111 ; R = Y + 0.40200 * Cr + Cr
112 ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
113 ; B = Y - 0.22800 * Cb + Cb + Cb
114
115 movdqa xmm5,xmm6 ; xmm5=CbH
116 movdqa xmm2,xmm4 ; xmm2=CbL
117 paddw xmm6,xmm6 ; xmm6=2*CbH
118 paddw xmm4,xmm4 ; xmm4=2*CbL
119 movdqa xmm1,xmm7 ; xmm1=CrH
120 movdqa xmm3,xmm0 ; xmm3=CrL
121 paddw xmm7,xmm7 ; xmm7=2*CrH
122 paddw xmm0,xmm0 ; xmm0=2*CrL
123
124 pmulhw xmm6,[GOTOFF(eax,PW_MF0228)] ; xmm6=(2*CbH * -FIX(0.22800))
125 pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbL * -FIX(0.22800))
126 pmulhw xmm7,[GOTOFF(eax,PW_F0402)] ; xmm7=(2*CrH * FIX(0.40200))
127 pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrL * FIX(0.40200))
128
129 paddw xmm6,[GOTOFF(eax,PW_ONE)]
130 paddw xmm4,[GOTOFF(eax,PW_ONE)]
131 psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800))
132 psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800))
133 paddw xmm7,[GOTOFF(eax,PW_ONE)]
134 paddw xmm0,[GOTOFF(eax,PW_ONE)]
135 psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200))
136 psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200))
137
138 paddw xmm6,xmm5
139 paddw xmm4,xmm2
140 paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H
141 paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L
142 paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H
143 paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L
144
145 movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H
146 movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H
147
148 movdqa xmm6,xmm5
149 movdqa xmm7,xmm2
150 punpcklwd xmm5,xmm1
151 punpckhwd xmm6,xmm1
152 pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)]
153 pmaddwd xmm6,[GOTOFF(eax,PW_MF0344_F0285)]
154 punpcklwd xmm2,xmm3
155 punpckhwd xmm7,xmm3
156 pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)]
157 pmaddwd xmm7,[GOTOFF(eax,PW_MF0344_F0285)]
158
159 paddd xmm5,[GOTOFF(eax,PD_ONEHALF)]
160 paddd xmm6,[GOTOFF(eax,PD_ONEHALF)]
161 psrad xmm5,SCALEBITS
162 psrad xmm6,SCALEBITS
163 paddd xmm2,[GOTOFF(eax,PD_ONEHALF)]
164 paddd xmm7,[GOTOFF(eax,PD_ONEHALF)]
165 psrad xmm2,SCALEBITS
166 psrad xmm7,SCALEBITS
167
168 packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
169 packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
170 psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
171 psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
172
173 movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H
174
175 mov al,2 ; Yctr
176 jmp short .Yloop_1st
177 alignx 16,7
178
179.Yloop_2nd:
180 movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H
181 movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H
182 movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H
183 alignx 16,7
184
185.Yloop_1st:
186 movdqa xmm7, XMMWORD [esi] ; xmm7=Y(0123456789ABCDEF)
187
188 pcmpeqw xmm6,xmm6
189 psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..}
190 pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE
191 psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO
192
193 movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H)
194 movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H)
195 movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H)
196
197 paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE)
198 paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF)
199 packuswb xmm0,xmm0 ; xmm0=R(02468ACE********)
200 packuswb xmm1,xmm1 ; xmm1=R(13579BDF********)
201
202 paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE)
203 paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF)
204 packuswb xmm2,xmm2 ; xmm2=G(02468ACE********)
205 packuswb xmm3,xmm3 ; xmm3=G(13579BDF********)
206
207 paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE)
208 paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=BO=B(13579BDF)
209 packuswb xmm4,xmm4 ; xmm4=B(02468ACE********)
210 packuswb xmm5,xmm5 ; xmm5=B(13579BDF********)
211
212%if RGB_PIXELSIZE == 3 ; ---------------
213
214 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
215 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
216 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
217 ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
218
219 punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
220 punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
221 punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
222
223 movdqa xmmG,xmmA
224 movdqa xmmH,xmmA
225 punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
226 punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
227
228 psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
229 psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
230
231 movdqa xmmC,xmmD
232 movdqa xmmB,xmmD
233 punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
234 punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
235
236 psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
237
238 movdqa xmmF,xmmE
239 punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
240 punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
241
242 pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
243 movdqa xmmB,xmmE
244 punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
245 punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
246 punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
247
248 pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
249 movdqa xmmB,xmmF
250 punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
251 punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
252 punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
253
254 punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
255 punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
256 punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
257
258 cmp ecx, byte SIZEOF_XMMWORD
259 jb short .column_st32
260
261 test edi, SIZEOF_XMMWORD-1
262 jnz short .out1
263 ; --(aligned)-------------------
264 movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
265 movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
266 movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]267 jmp short .out0
268.out1: ; --(unaligned)-----------------
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]269 movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
270 movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
271 movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]272.out0:
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]273 add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]274 sub ecx, byte SIZEOF_XMMWORD
275 jz near .endcolumn
276
277 add esi, byte SIZEOF_XMMWORD ; inptr0
278 dec al ; Yctr
279 jnz near .Yloop_2nd
280
281 add ebx, byte SIZEOF_XMMWORD ; inptr1
282 add edx, byte SIZEOF_XMMWORD ; inptr2
283 jmp near .columnloop
284 alignx 16,7
285
286.column_st32:
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]287 lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
288 cmp ecx, byte 2*SIZEOF_XMMWORD
289 jb short .column_st16
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]290 movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
291 movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
292 add edi, byte 2*SIZEOF_XMMWORD ; outptr
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]293 movdqa xmmA,xmmF
294 sub ecx, byte 2*SIZEOF_XMMWORD
295 jmp short .column_st15
296.column_st16:
297 cmp ecx, byte SIZEOF_XMMWORD
298 jb short .column_st15
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]299 movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]300 add edi, byte SIZEOF_XMMWORD ; outptr
301 movdqa xmmA,xmmD
302 sub ecx, byte SIZEOF_XMMWORD
303.column_st15:
DRC795e6ad2011-12-01 11:14:18 +0000[diff] [blame]304 ; Store the lower 8 bytes of xmmA to the output when it has enough
305 ; space.
306 cmp ecx, byte SIZEOF_MMWORD
307 jb short .column_st7
308 movq MMWORD [edi], xmmA
309 add edi, byte SIZEOF_MMWORD
310 sub ecx, byte SIZEOF_MMWORD
311 psrldq xmmA, SIZEOF_MMWORD
312.column_st7:
313 ; Store the lower 4 bytes of xmmA to the output when it has enough
314 ; space.
315 cmp ecx, byte SIZEOF_DWORD
316 jb short .column_st3
317 movd DWORD [edi], xmmA
318 add edi, byte SIZEOF_DWORD
319 sub ecx, byte SIZEOF_DWORD
320 psrldq xmmA, SIZEOF_DWORD
321.column_st3:
322 ; Store the lower 2 bytes of eax to the output when it has enough
323 ; space.
324 movd eax, xmmA
325 cmp ecx, byte SIZEOF_WORD
326 jb short .column_st1
327 mov WORD [edi], ax
328 add edi, byte SIZEOF_WORD
329 sub ecx, byte SIZEOF_WORD
330 shr eax, 16
331.column_st1:
332 ; Store the lower 1 byte of eax to the output when it has enough
333 ; space.
334 test ecx, ecx
335 jz short .endcolumn
336 mov BYTE [edi], al
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]337
338%else ; RGB_PIXELSIZE == 4 ; -----------
339
340%ifdef RGBX_FILLER_0XFF
341 pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
342 pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
343%else
344 pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
345 pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
346%endif
347 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
348 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
349 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
350 ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
351
352 punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
353 punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
354 punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
355 punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
356
357 movdqa xmmC,xmmA
358 punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
359 punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
360 movdqa xmmG,xmmB
361 punpcklwd xmmB,xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
362 punpckhwd xmmG,xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
363
364 movdqa xmmD,xmmA
365 punpckldq xmmA,xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
366 punpckhdq xmmD,xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
367 movdqa xmmH,xmmC
368 punpckldq xmmC,xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
369 punpckhdq xmmH,xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
370
371 cmp ecx, byte SIZEOF_XMMWORD
372 jb short .column_st32
373
374 test edi, SIZEOF_XMMWORD-1
375 jnz short .out1
376 ; --(aligned)-------------------
377 movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
378 movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
379 movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC
380 movntdq XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]381 jmp short .out0
382.out1: ; --(unaligned)-----------------
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]383 movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
384 movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
385 movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC
386 movdqu XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]387.out0:
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]388 add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]389 sub ecx, byte SIZEOF_XMMWORD
390 jz near .endcolumn
391
392 add esi, byte SIZEOF_XMMWORD ; inptr0
393 dec al ; Yctr
394 jnz near .Yloop_2nd
395
396 add ebx, byte SIZEOF_XMMWORD ; inptr1
397 add edx, byte SIZEOF_XMMWORD ; inptr2
398 jmp near .columnloop
399 alignx 16,7
400
401.column_st32:
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]402 cmp ecx, byte SIZEOF_XMMWORD/2
403 jb short .column_st16
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]404 movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
405 movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
406 add edi, byte 2*SIZEOF_XMMWORD ; outptr
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]407 movdqa xmmA,xmmC
408 movdqa xmmD,xmmH
409 sub ecx, byte SIZEOF_XMMWORD/2
410.column_st16:
411 cmp ecx, byte SIZEOF_XMMWORD/4
412 jb short .column_st15
DRC69799272012-06-13 01:21:29 +0000[diff] [blame]413 movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]414 add edi, byte SIZEOF_XMMWORD ; outptr
415 movdqa xmmA,xmmD
416 sub ecx, byte SIZEOF_XMMWORD/4
417.column_st15:
DRC795e6ad2011-12-01 11:14:18 +0000[diff] [blame]418 ; Store two pixels (8 bytes) of xmmA to the output when it has enough
419 ; space.
420 cmp ecx, byte SIZEOF_XMMWORD/8
421 jb short .column_st7
422 movq MMWORD [edi], xmmA
DRC8126d0c2012-06-15 21:54:45 +0000[diff] [blame]423 add edi, byte SIZEOF_XMMWORD/8*4
DRC795e6ad2011-12-01 11:14:18 +0000[diff] [blame]424 sub ecx, byte SIZEOF_XMMWORD/8
DRC8126d0c2012-06-15 21:54:45 +0000[diff] [blame]425 psrldq xmmA, SIZEOF_XMMWORD/8*4
DRC795e6ad2011-12-01 11:14:18 +0000[diff] [blame]426.column_st7:
427 ; Store one pixel (4 bytes) of xmmA to the output when it has enough
428 ; space.
429 test ecx, ecx
430 jz short .endcolumn
431 movd DWORD [edi], xmmA
DRC720e1612009-04-05 21:51:25 +0000[diff] [blame]432
433%endif ; RGB_PIXELSIZE ; ---------------
434
435.endcolumn:
436 sfence ; flush the write buffer
437
438.return:
439 pop edi
440 pop esi
441; pop edx ; need not be preserved
442; pop ecx ; need not be preserved
443 pop ebx
444 mov esp,ebp ; esp <- aligned ebp
445 pop esp ; esp <- original ebp
446 pop ebp
447 ret
448
449; --------------------------------------------------------------------------
450;
451; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
452;
453; GLOBAL(void)
454; jsimd_h2v2_merged_upsample_sse2 (JDIMENSION output_width,
455; JSAMPIMAGE input_buf,
456; JDIMENSION in_row_group_ctr,
457; JSAMPARRAY output_buf);
458;
459
460%define output_width(b) (b)+8 ; JDIMENSION output_width
461%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
462%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
463%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
464
465 align 16
466 global EXTN(jsimd_h2v2_merged_upsample_sse2)
467
468EXTN(jsimd_h2v2_merged_upsample_sse2):
469 push ebp
470 mov ebp,esp
471 push ebx
472; push ecx ; need not be preserved
473; push edx ; need not be preserved
474 push esi
475 push edi
476
477 mov eax, POINTER [output_width(ebp)]
478
479 mov edi, JSAMPIMAGE [input_buf(ebp)]
480 mov ecx, JDIMENSION [in_row_group_ctr(ebp)]
481 mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
482 mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
483 mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
484 mov edi, JSAMPARRAY [output_buf(ebp)]
485 lea esi, [esi+ecx*SIZEOF_JSAMPROW]
486
487 push edx ; inptr2
488 push ebx ; inptr1
489 push esi ; inptr00
490 mov ebx,esp
491
492 push edi ; output_buf (outptr0)
493 push ecx ; in_row_group_ctr
494 push ebx ; input_buf
495 push eax ; output_width
496
497 call near EXTN(jsimd_h2v1_merged_upsample_sse2)
498
499 add esi, byte SIZEOF_JSAMPROW ; inptr01
500 add edi, byte SIZEOF_JSAMPROW ; outptr1
501 mov POINTER [ebx+0*SIZEOF_POINTER], esi
502 mov POINTER [ebx-1*SIZEOF_POINTER], edi
503
504 call near EXTN(jsimd_h2v1_merged_upsample_sse2)
505
506 add esp, byte 7*SIZEOF_DWORD
507
508 pop edi
509 pop esi
510; pop edx ; need not be preserved
511; pop ecx ; need not be preserved
512 pop ebx
513 pop ebp
514 ret
515
DRC132b5fd2009-10-08 09:04:56 +0000[diff] [blame]516; For some reason, the OS X linker does not honor the request to align the
517; segment unless we do this.
518 align 16