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1 : | edgomez | 1382 | ;/***************************************************************************** |
2 : | edgomez | 851 | ; * |
3 : | edgomez | 1382 | ; * XVID MPEG-4 VIDEO CODEC |
4 : | ; * - 3dne pipeline optimized 8x8 block-based halfpel interpolation - | ||
5 : | edgomez | 851 | ; * |
6 : | edgomez | 1382 | ; * Copyright(C) 2002 Jaan Kalda |
7 : | edgomez | 851 | ; * |
8 : | edgomez | 1382 | ; * This program is free software ; you can redistribute it and/or modify |
9 : | ; * it under the terms of the GNU General Public License as published by | ||
10 : | ; * the Free Software Foundation ; either version 2 of the License, or | ||
11 : | ; * (at your option) any later version. | ||
12 : | edgomez | 851 | ; * |
13 : | edgomez | 1382 | ; * This program is distributed in the hope that it will be useful, |
14 : | ; * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
15 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 : | ; * GNU General Public License for more details. | ||
17 : | edgomez | 851 | ; * |
18 : | edgomez | 1382 | ; * You should have received a copy of the GNU General Public License |
19 : | ; * along with this program ; if not, write to the Free Software | ||
20 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 : | edgomez | 851 | ; * |
22 : | edgomez | 1382 | ; ****************************************************************************/ |
23 : | edgomez | 851 | |
24 : | edgomez | 1382 | ; these 3dne functions are compatible with iSSE, but are optimized specifically |
25 : | ; for K7 pipelines | ||
26 : | edgomez | 851 | |
27 : | edgomez | 1382 | BITS 32 |
28 : | edgomez | 851 | |
29 : | edgomez | 1382 | %macro cglobal 1 |
30 : | edgomez | 851 | %ifdef PREFIX |
31 : | edgomez | 1535 | %ifdef MARK_FUNCS |
32 : | edgomez | 1540 | global _%1:function %1.endfunc-%1 |
33 : | %define %1 _%1:function %1.endfunc-%1 | ||
34 : | edgomez | 1535 | %else |
35 : | global _%1 | ||
36 : | %define %1 _%1 | ||
37 : | %endif | ||
38 : | edgomez | 851 | %else |
39 : | edgomez | 1535 | %ifdef MARK_FUNCS |
40 : | edgomez | 1540 | global %1:function %1.endfunc-%1 |
41 : | edgomez | 1535 | %else |
42 : | global %1 | ||
43 : | %endif | ||
44 : | edgomez | 851 | %endif |
45 : | %endmacro | ||
46 : | edgomez | 1382 | |
47 : | ;============================================================================= | ||
48 : | ; Read only data | ||
49 : | ;============================================================================= | ||
50 : | |||
51 : | edgomez | 851 | %ifdef FORMAT_COFF |
52 : | edgomez | 1519 | SECTION .rodata |
53 : | edgomez | 851 | %else |
54 : | edgomez | 1519 | SECTION .rodata align=16 |
55 : | edgomez | 851 | %endif |
56 : | |||
57 : | edgomez | 1382 | ALIGN 16 |
58 : | mmx_one: | ||
59 : | times 8 db 1 | ||
60 : | edgomez | 851 | |
61 : | edgomez | 1382 | ALIGN 8 |
62 : | edgomez | 851 | mm_minusone: |
63 : | edgomez | 1382 | dd -1,-1 |
64 : | edgomez | 851 | |
65 : | edgomez | 1382 | ;============================================================================= |
66 : | ; Macros | ||
67 : | ;============================================================================= | ||
68 : | edgomez | 851 | |
69 : | edgomez | 1382 | %macro nop4 0 |
70 : | DB 08Dh,074h,026h,0 | ||
71 : | %endmacro | ||
72 : | |||
73 : | ;============================================================================= | ||
74 : | ; Macros | ||
75 : | ;============================================================================= | ||
76 : | |||
77 : | SECTION .text | ||
78 : | |||
79 : | edgomez | 851 | cglobal interpolate8x8_halfpel_h_3dne |
80 : | cglobal interpolate8x8_halfpel_v_3dne | ||
81 : | cglobal interpolate8x8_halfpel_hv_3dne | ||
82 : | |||
83 : | suxen_drol | 1632 | cglobal interpolate8x4_halfpel_h_3dne |
84 : | cglobal interpolate8x4_halfpel_v_3dne | ||
85 : | cglobal interpolate8x4_halfpel_hv_3dne | ||
86 : | |||
87 : | edgomez | 1382 | ;----------------------------------------------------------------------------- |
88 : | edgomez | 851 | ; |
89 : | ; void interpolate8x8_halfpel_h_3dne(uint8_t * const dst, | ||
90 : | edgomez | 1382 | ; const uint8_t * const src, |
91 : | ; const uint32_t stride, | ||
92 : | ; const uint32_t rounding); | ||
93 : | edgomez | 851 | ; |
94 : | edgomez | 1382 | ;----------------------------------------------------------------------------- |
95 : | edgomez | 851 | |
96 : | %macro COPY_H_SSE_RND0 1 | ||
97 : | %if (%1) | ||
98 : | edgomez | 1382 | movq mm0, [eax] |
99 : | edgomez | 851 | %else |
100 : | edgomez | 1382 | movq mm0, [dword eax] |
101 : | edgomez | 851 | %endif |
102 : | pavgb mm0, [eax+1] | ||
103 : | edgomez | 1382 | movq mm1, [eax+edx] |
104 : | edgomez | 851 | pavgb mm1, [eax+edx+1] |
105 : | edgomez | 1382 | lea eax, [eax+2*edx] |
106 : | movq [ecx], mm0 | ||
107 : | movq [ecx+edx], mm1 | ||
108 : | edgomez | 851 | %endmacro |
109 : | |||
110 : | %macro COPY_H_SSE_RND1 0 | ||
111 : | movq mm0, [eax] | ||
112 : | movq mm1, [eax+edx] | ||
113 : | movq mm4, mm0 | ||
114 : | movq mm5, mm1 | ||
115 : | edgomez | 1382 | movq mm2, [eax+1] |
116 : | edgomez | 851 | movq mm3, [eax+edx+1] |
117 : | pavgb mm0, mm2 | ||
118 : | pxor mm2, mm4 | ||
119 : | pavgb mm1, mm3 | ||
120 : | edgomez | 1382 | lea eax, [eax+2*edx] |
121 : | edgomez | 851 | pxor mm3, mm5 |
122 : | pand mm2, mm7 | ||
123 : | pand mm3, mm7 | ||
124 : | psubb mm0, mm2 | ||
125 : | movq [ecx], mm0 | ||
126 : | psubb mm1, mm3 | ||
127 : | edgomez | 1382 | movq [ecx+edx], mm1 |
128 : | edgomez | 851 | %endmacro |
129 : | |||
130 : | edgomez | 1382 | ALIGN 16 |
131 : | edgomez | 851 | interpolate8x8_halfpel_h_3dne: |
132 : | |||
133 : | mov eax, [esp+ 8] ; Src | ||
134 : | mov edx, [esp+12] ; stride | ||
135 : | dec dword [esp+16]; rounding | ||
136 : | |||
137 : | jz .rounding1 | ||
138 : | mov ecx, [esp+ 4] ; Dst | ||
139 : | |||
140 : | COPY_H_SSE_RND0 0 | ||
141 : | lea ecx,[ecx+2*edx] | ||
142 : | COPY_H_SSE_RND0 1 | ||
143 : | lea ecx,[ecx+2*edx] | ||
144 : | COPY_H_SSE_RND0 1 | ||
145 : | lea ecx,[ecx+2*edx] | ||
146 : | COPY_H_SSE_RND0 1 | ||
147 : | ret | ||
148 : | |||
149 : | .rounding1 | ||
150 : | edgomez | 1382 | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 |
151 : | edgomez | 851 | mov ecx, [esp+ 4] ; Dst |
152 : | movq mm7, [mmx_one] | ||
153 : | COPY_H_SSE_RND1 | ||
154 : | lea ecx, [ecx+2*edx] | ||
155 : | COPY_H_SSE_RND1 | ||
156 : | lea ecx,[ecx+2*edx] | ||
157 : | COPY_H_SSE_RND1 | ||
158 : | lea ecx,[ecx+2*edx] | ||
159 : | COPY_H_SSE_RND1 | ||
160 : | ret | ||
161 : | edgomez | 1540 | .endfunc |
162 : | edgomez | 851 | |
163 : | edgomez | 1382 | ;----------------------------------------------------------------------------- |
164 : | edgomez | 851 | ; |
165 : | ; void interpolate8x8_halfpel_v_3dne(uint8_t * const dst, | ||
166 : | edgomez | 1382 | ; const uint8_t * const src, |
167 : | ; const uint32_t stride, | ||
168 : | ; const uint32_t rounding); | ||
169 : | edgomez | 851 | ; |
170 : | edgomez | 1382 | ;----------------------------------------------------------------------------- |
171 : | edgomez | 851 | |
172 : | edgomez | 1382 | ALIGN 16 |
173 : | edgomez | 851 | interpolate8x8_halfpel_v_3dne: |
174 : | |||
175 : | mov eax, [esp+ 8] ; Src | ||
176 : | mov edx, [esp+12] ; stride | ||
177 : | dec dword [esp+16]; rounding | ||
178 : | |||
179 : | ; we process 2 line at a time | ||
180 : | |||
181 : | jz .rounding1 | ||
182 : | pxor mm2,mm2 | ||
183 : | edgomez | 1382 | movq mm0, [eax] |
184 : | movq mm1, [eax+edx] | ||
185 : | por mm2, [eax+2*edx] | ||
186 : | edgomez | 851 | mov ecx, [esp+ 4] ; Dst |
187 : | edgomez | 1382 | lea eax, [eax+2*edx] |
188 : | pxor mm4, mm4 | ||
189 : | edgomez | 851 | pavgb mm0, mm1 |
190 : | edgomez | 1382 | pavgb mm1, mm2 |
191 : | movq [byte ecx], mm0 | ||
192 : | movq [ecx+edx], mm1 | ||
193 : | pxor mm6, mm6 | ||
194 : | add eax, edx | ||
195 : | lea ecx, [ecx+2*edx] | ||
196 : | movq mm3, [byte eax] | ||
197 : | por mm4, [eax+edx] | ||
198 : | lea eax, [eax+2*edx] | ||
199 : | edgomez | 851 | pavgb mm2, mm3 |
200 : | pavgb mm3, mm4 | ||
201 : | edgomez | 1382 | movq [ecx], mm2 |
202 : | movq [ecx+edx], mm3 | ||
203 : | lea ecx, [byte ecx+2*edx] | ||
204 : | movq mm5, [byte eax] | ||
205 : | por mm6, [eax+edx] | ||
206 : | lea eax, [eax+2*edx] | ||
207 : | edgomez | 851 | pavgb mm4, mm5 |
208 : | pavgb mm5, mm6 | ||
209 : | edgomez | 1382 | movq [ecx], mm4 |
210 : | movq [ecx+edx], mm5 | ||
211 : | lea ecx, [ecx+2*edx] | ||
212 : | movq mm7, [eax] | ||
213 : | movq mm0, [eax+edx] | ||
214 : | edgomez | 851 | pavgb mm6, mm7 |
215 : | pavgb mm7, mm0 | ||
216 : | edgomez | 1382 | movq [ecx], mm6 |
217 : | movq [ecx+edx], mm7 | ||
218 : | edgomez | 851 | ret |
219 : | |||
220 : | edgomez | 1382 | ALIGN 8 |
221 : | edgomez | 851 | .rounding1 |
222 : | edgomez | 1382 | pcmpeqb mm0, mm0 |
223 : | psubusb mm0, [eax] | ||
224 : | add eax, edx | ||
225 : | edgomez | 851 | mov ecx, [esp+ 4] ; Dst |
226 : | push esi | ||
227 : | edgomez | 1382 | pcmpeqb mm1, mm1 |
228 : | pcmpeqb mm2, mm2 | ||
229 : | mov esi, mm_minusone | ||
230 : | psubusb mm1, [byte eax] | ||
231 : | psubusb mm2, [eax+edx] | ||
232 : | lea eax, [eax+2*edx] | ||
233 : | edgomez | 851 | movq mm6, [esi] |
234 : | movq mm7, [esi] | ||
235 : | pavgb mm0, mm1 | ||
236 : | pavgb mm1, mm2 | ||
237 : | edgomez | 1382 | psubusb mm6, mm0 |
238 : | psubusb mm7, mm1 | ||
239 : | edgomez | 851 | movq [ecx], mm6 |
240 : | movq [ecx+edx], mm7 | ||
241 : | edgomez | 1382 | lea ecx, [ecx+2*edx] |
242 : | pcmpeqb mm3, mm3 | ||
243 : | pcmpeqb mm4, mm4 | ||
244 : | psubusb mm3, [eax] | ||
245 : | psubusb mm4, [eax+edx] | ||
246 : | lea eax, [eax+2*edx] | ||
247 : | edgomez | 851 | pavgb mm2, mm3 |
248 : | pavgb mm3, mm4 | ||
249 : | movq mm0, [esi] | ||
250 : | movq mm1, [esi] | ||
251 : | edgomez | 1382 | psubusb mm0, mm2 |
252 : | psubusb mm1, mm3 | ||
253 : | edgomez | 851 | movq [ecx], mm0 |
254 : | movq [ecx+edx], mm1 | ||
255 : | lea ecx,[ecx+2*edx] | ||
256 : | |||
257 : | edgomez | 1382 | pcmpeqb mm5, mm5 |
258 : | pcmpeqb mm6, mm6 | ||
259 : | psubusb mm5, [eax] | ||
260 : | psubusb mm6, [eax+edx] | ||
261 : | lea eax, [eax+2*edx] | ||
262 : | edgomez | 851 | pavgb mm4, mm5 |
263 : | pavgb mm5, mm6 | ||
264 : | movq mm2, [esi] | ||
265 : | movq mm3, [esi] | ||
266 : | edgomez | 1382 | psubusb mm2, mm4 |
267 : | psubusb mm3, mm5 | ||
268 : | edgomez | 851 | movq [ecx], mm2 |
269 : | movq [ecx+edx], mm3 | ||
270 : | edgomez | 1382 | lea ecx, [ecx+2*edx] |
271 : | pcmpeqb mm7, mm7 | ||
272 : | pcmpeqb mm0, mm0 | ||
273 : | psubusb mm7, [eax] | ||
274 : | psubusb mm0, [eax+edx] | ||
275 : | edgomez | 851 | pavgb mm6, mm7 |
276 : | pavgb mm7, mm0 | ||
277 : | movq mm4, [esi] | ||
278 : | movq mm5, [esi] | ||
279 : | edgomez | 1382 | psubusb mm4, mm6 |
280 : | edgomez | 851 | pop esi |
281 : | edgomez | 1382 | psubusb mm5, mm7 |
282 : | edgomez | 851 | movq [ecx], mm4 |
283 : | movq [ecx+edx], mm5 | ||
284 : | ret | ||
285 : | edgomez | 1540 | .endfunc |
286 : | edgomez | 1382 | |
287 : | ;----------------------------------------------------------------------------- | ||
288 : | edgomez | 851 | ; |
289 : | ; void interpolate8x8_halfpel_hv_3dne(uint8_t * const dst, | ||
290 : | edgomez | 1382 | ; const uint8_t * const src, |
291 : | ; const uint32_t stride, | ||
292 : | ; const uint32_t rounding); | ||
293 : | edgomez | 851 | ; |
294 : | ; | ||
295 : | edgomez | 1382 | ;----------------------------------------------------------------------------- |
296 : | edgomez | 851 | |
297 : | ; The trick is to correct the result of 'pavgb' with some combination of the | ||
298 : | ; lsb's of the 4 input values i,j,k,l, and their intermediate 'pavgb' (s and t). | ||
299 : | ; The boolean relations are: | ||
300 : | edgomez | 1382 | ; (i+j+k+l+3)/4 = (s+t+1)/2 - (ij&kl)&st |
301 : | edgomez | 851 | ; (i+j+k+l+2)/4 = (s+t+1)/2 - (ij|kl)&st |
302 : | ; (i+j+k+l+1)/4 = (s+t+1)/2 - (ij&kl)|st | ||
303 : | ; (i+j+k+l+0)/4 = (s+t+1)/2 - (ij|kl)|st | ||
304 : | ; with s=(i+j+1)/2, t=(k+l+1)/2, ij = i^j, kl = k^l, st = s^t. | ||
305 : | |||
306 : | ; Moreover, we process 2 lines at a times, for better overlapping (~15% faster). | ||
307 : | |||
308 : | %macro COPY_HV_SSE_RND0 0 | ||
309 : | |||
310 : | edgomez | 1382 | movq mm0, [eax+edx] |
311 : | movq mm1, [eax+edx+1] | ||
312 : | edgomez | 851 | |
313 : | edgomez | 1382 | movq mm6, mm0 |
314 : | pavgb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
315 : | lea eax, [eax+2*edx] | ||
316 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
317 : | edgomez | 851 | |
318 : | edgomez | 1382 | por mm3, mm1 ; ij |= jk |
319 : | movq mm6, mm2 | ||
320 : | pxor mm6, mm0 ; mm6 = s^t | ||
321 : | pand mm3, mm6 ; (ij|jk) &= st | ||
322 : | pavgb mm2, mm0 ; mm2 = (s+t+1)/2 | ||
323 : | movq mm6, [eax] | ||
324 : | pand mm3, mm7 ; mask lsb | ||
325 : | psubb mm2, mm3 ; apply. | ||
326 : | edgomez | 851 | |
327 : | edgomez | 1382 | movq [ecx], mm2 |
328 : | edgomez | 851 | |
329 : | edgomez | 1382 | movq mm2, [eax] |
330 : | movq mm3, [eax+1] | ||
331 : | pavgb mm2, mm3 ; preserved for next iteration | ||
332 : | pxor mm3, mm6 ; preserved for next iteration | ||
333 : | edgomez | 851 | |
334 : | edgomez | 1382 | por mm1, mm3 |
335 : | movq mm6, mm0 | ||
336 : | pxor mm6, mm2 | ||
337 : | pand mm1, mm6 | ||
338 : | pavgb mm0, mm2 | ||
339 : | edgomez | 851 | |
340 : | edgomez | 1382 | pand mm1, mm7 |
341 : | psubb mm0, mm1 | ||
342 : | edgomez | 851 | |
343 : | edgomez | 1382 | movq [ecx+edx], mm0 |
344 : | edgomez | 851 | %endmacro |
345 : | |||
346 : | %macro COPY_HV_SSE_RND1 0 | ||
347 : | edgomez | 1382 | movq mm0, [eax+edx] |
348 : | movq mm1, [eax+edx+1] | ||
349 : | edgomez | 851 | |
350 : | edgomez | 1382 | movq mm6, mm0 |
351 : | pavgb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
352 : | lea eax,[eax+2*edx] | ||
353 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
354 : | edgomez | 851 | |
355 : | edgomez | 1382 | pand mm3, mm1 |
356 : | movq mm6, mm2 | ||
357 : | pxor mm6, mm0 | ||
358 : | por mm3, mm6 | ||
359 : | pavgb mm2, mm0 | ||
360 : | movq mm6, [eax] | ||
361 : | pand mm3, mm7 | ||
362 : | psubb mm2, mm3 | ||
363 : | edgomez | 851 | |
364 : | edgomez | 1382 | movq [ecx], mm2 |
365 : | edgomez | 851 | |
366 : | edgomez | 1382 | movq mm2, [eax] |
367 : | movq mm3, [eax+1] | ||
368 : | pavgb mm2, mm3 ; preserved for next iteration | ||
369 : | pxor mm3, mm6 ; preserved for next iteration | ||
370 : | edgomez | 851 | |
371 : | edgomez | 1382 | pand mm1, mm3 |
372 : | movq mm6, mm0 | ||
373 : | pxor mm6, mm2 | ||
374 : | por mm1, mm6 | ||
375 : | pavgb mm0, mm2 | ||
376 : | pand mm1, mm7 | ||
377 : | psubb mm0, mm1 | ||
378 : | movq [ecx+edx], mm0 | ||
379 : | edgomez | 851 | %endmacro |
380 : | |||
381 : | edgomez | 1382 | ALIGN 16 |
382 : | edgomez | 851 | interpolate8x8_halfpel_hv_3dne: |
383 : | edgomez | 1382 | mov eax, [esp+ 8] ; Src |
384 : | mov edx, [esp+12] ; stride | ||
385 : | dec dword [esp+16] ; rounding | ||
386 : | edgomez | 851 | |
387 : | ; loop invariants: mm2=(i+j+1)/2 and mm3= i^j | ||
388 : | movq mm2, [eax] | ||
389 : | movq mm3, [eax+1] | ||
390 : | movq mm6, mm2 | ||
391 : | pavgb mm2, mm3 | ||
392 : | edgomez | 1382 | pxor mm3, mm6 ; mm2/mm3 ready |
393 : | mov ecx, [esp+ 4] ; Dst | ||
394 : | edgomez | 851 | movq mm7, [mmx_one] |
395 : | |||
396 : | jz near .rounding1 | ||
397 : | edgomez | 1382 | lea ebp,[byte ebp] |
398 : | edgomez | 851 | COPY_HV_SSE_RND0 |
399 : | edgomez | 1382 | lea ecx,[ecx+2*edx] |
400 : | edgomez | 851 | COPY_HV_SSE_RND0 |
401 : | edgomez | 1382 | lea ecx,[ecx+2*edx] |
402 : | edgomez | 851 | COPY_HV_SSE_RND0 |
403 : | edgomez | 1382 | lea ecx,[ecx+2*edx] |
404 : | edgomez | 851 | COPY_HV_SSE_RND0 |
405 : | ret | ||
406 : | |||
407 : | edgomez | 1382 | ALIGN 16 |
408 : | edgomez | 851 | .rounding1 |
409 : | COPY_HV_SSE_RND1 | ||
410 : | edgomez | 1382 | lea ecx,[ecx+2*edx] |
411 : | edgomez | 851 | COPY_HV_SSE_RND1 |
412 : | edgomez | 1382 | lea ecx,[ecx+2*edx] |
413 : | edgomez | 851 | COPY_HV_SSE_RND1 |
414 : | edgomez | 1382 | lea ecx,[ecx+2*edx] |
415 : | edgomez | 851 | COPY_HV_SSE_RND1 |
416 : | edgomez | 1382 | ret |
417 : | edgomez | 1540 | .endfunc |
418 : | |||
419 : | suxen_drol | 1632 | ;----------------------------------------------------------------------------- |
420 : | ; | ||
421 : | ; void interpolate8x4_halfpel_h_3dne(uint8_t * const dst, | ||
422 : | ; const uint8_t * const src, | ||
423 : | ; const uint32_t stride, | ||
424 : | ; const uint32_t rounding); | ||
425 : | ; | ||
426 : | ;----------------------------------------------------------------------------- | ||
427 : | |||
428 : | ALIGN 16 | ||
429 : | interpolate8x4_halfpel_h_3dne: | ||
430 : | |||
431 : | mov eax, [esp+ 8] ; Src | ||
432 : | mov edx, [esp+12] ; stride | ||
433 : | dec dword [esp+16]; rounding | ||
434 : | |||
435 : | jz .rounding1 | ||
436 : | mov ecx, [esp+ 4] ; Dst | ||
437 : | |||
438 : | COPY_H_SSE_RND0 0 | ||
439 : | lea ecx,[ecx+2*edx] | ||
440 : | COPY_H_SSE_RND0 1 | ||
441 : | ret | ||
442 : | |||
443 : | .rounding1 | ||
444 : | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 | ||
445 : | mov ecx, [esp+ 4] ; Dst | ||
446 : | movq mm7, [mmx_one] | ||
447 : | COPY_H_SSE_RND1 | ||
448 : | lea ecx, [ecx+2*edx] | ||
449 : | COPY_H_SSE_RND1 | ||
450 : | ret | ||
451 : | .endfunc | ||
452 : | |||
453 : | ;----------------------------------------------------------------------------- | ||
454 : | ; | ||
455 : | ; void interpolate8x4_halfpel_v_3dne(uint8_t * const dst, | ||
456 : | ; const uint8_t * const src, | ||
457 : | ; const uint32_t stride, | ||
458 : | ; const uint32_t rounding); | ||
459 : | ; | ||
460 : | ;----------------------------------------------------------------------------- | ||
461 : | |||
462 : | ALIGN 16 | ||
463 : | interpolate8x4_halfpel_v_3dne: | ||
464 : | |||
465 : | mov eax, [esp+ 8] ; Src | ||
466 : | mov edx, [esp+12] ; stride | ||
467 : | dec dword [esp+16]; rounding | ||
468 : | |||
469 : | ; we process 2 line at a time | ||
470 : | |||
471 : | jz .rounding1 | ||
472 : | pxor mm2,mm2 | ||
473 : | movq mm0, [eax] | ||
474 : | movq mm1, [eax+edx] | ||
475 : | por mm2, [eax+2*edx] ; Something like preload (pipelining) | ||
476 : | mov ecx, [esp+ 4] ; Dst | ||
477 : | lea eax, [eax+2*edx] | ||
478 : | pxor mm4, mm4 | ||
479 : | pavgb mm0, mm1 | ||
480 : | pavgb mm1, mm2 | ||
481 : | movq [byte ecx], mm0 | ||
482 : | movq [ecx+edx], mm1 | ||
483 : | |||
484 : | pxor mm6, mm6 | ||
485 : | add eax, edx | ||
486 : | lea ecx, [ecx+2*edx] | ||
487 : | movq mm3, [byte eax] | ||
488 : | por mm4, [eax+edx] | ||
489 : | lea eax, [eax+2*edx] | ||
490 : | pavgb mm2, mm3 | ||
491 : | pavgb mm3, mm4 | ||
492 : | movq [ecx], mm2 | ||
493 : | movq [ecx+edx], mm3 | ||
494 : | |||
495 : | ret | ||
496 : | |||
497 : | ALIGN 8 | ||
498 : | .rounding1 | ||
499 : | pcmpeqb mm0, mm0 | ||
500 : | psubusb mm0, [eax] ; eax==line0 | ||
501 : | add eax, edx ; eax==line1 | ||
502 : | mov ecx, [esp+ 4] ; Dst | ||
503 : | |||
504 : | push esi | ||
505 : | |||
506 : | pcmpeqb mm1, mm1 | ||
507 : | pcmpeqb mm2, mm2 | ||
508 : | mov esi, mm_minusone | ||
509 : | psubusb mm1, [byte eax] ; line1 | ||
510 : | psubusb mm2, [eax+edx] ; line2 | ||
511 : | lea eax, [eax+2*edx] ; eax==line3 | ||
512 : | movq mm6, [esi] | ||
513 : | movq mm7, [esi] | ||
514 : | pavgb mm0, mm1 | ||
515 : | pavgb mm1, mm2 | ||
516 : | psubusb mm6, mm0 | ||
517 : | psubusb mm7, mm1 | ||
518 : | movq [ecx], mm6 ; store line0 | ||
519 : | movq [ecx+edx], mm7 ; store line1 | ||
520 : | |||
521 : | lea ecx, [ecx+2*edx] | ||
522 : | pcmpeqb mm3, mm3 | ||
523 : | pcmpeqb mm4, mm4 | ||
524 : | psubusb mm3, [eax] ; line3 | ||
525 : | psubusb mm4, [eax+edx] ; line4 | ||
526 : | lea eax, [eax+2*edx] ; eax==line 5 | ||
527 : | pavgb mm2, mm3 | ||
528 : | pavgb mm3, mm4 | ||
529 : | movq mm0, [esi] | ||
530 : | movq mm1, [esi] | ||
531 : | psubusb mm0, mm2 | ||
532 : | psubusb mm1, mm3 | ||
533 : | movq [ecx], mm0 | ||
534 : | movq [ecx+edx], mm1 | ||
535 : | |||
536 : | pop esi | ||
537 : | |||
538 : | ret | ||
539 : | |||
540 : | .endfunc | ||
541 : | |||
542 : | ;----------------------------------------------------------------------------- | ||
543 : | ; | ||
544 : | ; void interpolate8x4_halfpel_hv_3dne(uint8_t * const dst, | ||
545 : | ; const uint8_t * const src, | ||
546 : | ; const uint32_t stride, | ||
547 : | ; const uint32_t rounding); | ||
548 : | ; | ||
549 : | ; | ||
550 : | ;----------------------------------------------------------------------------- | ||
551 : | |||
552 : | ALIGN 16 | ||
553 : | interpolate8x4_halfpel_hv_3dne: | ||
554 : | mov eax, [esp+ 8] ; Src | ||
555 : | mov edx, [esp+12] ; stride | ||
556 : | dec dword [esp+16] ; rounding | ||
557 : | |||
558 : | ; loop invariants: mm2=(i+j+1)/2 and mm3= i^j | ||
559 : | movq mm2, [eax] | ||
560 : | movq mm3, [eax+1] | ||
561 : | movq mm6, mm2 | ||
562 : | pavgb mm2, mm3 | ||
563 : | pxor mm3, mm6 ; mm2/mm3 ready | ||
564 : | mov ecx, [esp+ 4] ; Dst | ||
565 : | movq mm7, [mmx_one] | ||
566 : | |||
567 : | jz near .rounding1 | ||
568 : | lea ebp,[byte ebp] | ||
569 : | COPY_HV_SSE_RND0 | ||
570 : | lea ecx,[ecx+2*edx] | ||
571 : | COPY_HV_SSE_RND0 | ||
572 : | ret | ||
573 : | |||
574 : | ALIGN 16 | ||
575 : | .rounding1 | ||
576 : | COPY_HV_SSE_RND1 | ||
577 : | lea ecx,[ecx+2*edx] | ||
578 : | COPY_HV_SSE_RND1 | ||
579 : | ret | ||
580 : | .endfunc | ||
581 : |
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