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1 : | edgomez | 1.5 | ;/***************************************************************************** |
2 : | Isibaar | 1.1 | ; * |
3 : | edgomez | 1.5 | ; * XVID MPEG-4 VIDEO CODEC |
4 : | ; * - 3dnow 8x8 block-based halfpel interpolation - | ||
5 : | Isibaar | 1.1 | ; * |
6 : | edgomez | 1.5 | ; * Copyright(C) 2001 Peter Ross <pross@xvid.org> |
7 : | ; * 2002 Michael Militzer <isibaar@xvid.org> | ||
8 : | ; * 2002 Pascal Massimino <skal@planet-d.net> | ||
9 : | Isibaar | 1.1 | ; * |
10 : | edgomez | 1.5 | ; * This program is free software ; you can redistribute it and/or modify |
11 : | ; * it under the terms of the GNU General Public License as published by | ||
12 : | ; * the Free Software Foundation ; either version 2 of the License, or | ||
13 : | ; * (at your option) any later version. | ||
14 : | edgomez | 1.3 | ; * |
15 : | edgomez | 1.5 | ; * This program is distributed in the hope that it will be useful, |
16 : | ; * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
17 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 : | ; * GNU General Public License for more details. | ||
19 : | Isibaar | 1.1 | ; * |
20 : | edgomez | 1.5 | ; * You should have received a copy of the GNU General Public License |
21 : | ; * along with this program ; if not, write to the Free Software | ||
22 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
23 : | edgomez | 1.4 | ; * |
24 : | edgomez | 1.5 | ; ****************************************************************************/ |
25 : | edgomez | 1.4 | |
26 : | edgomez | 1.5 | BITS 32 |
27 : | Isibaar | 1.1 | |
28 : | edgomez | 1.5 | %macro cglobal 1 |
29 : | Isibaar | 1.1 | %ifdef PREFIX |
30 : | edgomez | 1.7 | %ifdef MARK_FUNCS |
31 : | global _%1:function | ||
32 : | %define %1 _%1:function | ||
33 : | %else | ||
34 : | global _%1 | ||
35 : | %define %1 _%1 | ||
36 : | %endif | ||
37 : | Isibaar | 1.1 | %else |
38 : | edgomez | 1.7 | %ifdef MARK_FUNCS |
39 : | global %1:function | ||
40 : | %else | ||
41 : | global %1 | ||
42 : | %endif | ||
43 : | Isibaar | 1.1 | %endif |
44 : | %endmacro | ||
45 : | |||
46 : | edgomez | 1.5 | ;============================================================================= |
47 : | ; Read Only data | ||
48 : | ;============================================================================= | ||
49 : | |||
50 : | %ifdef FORMAT_COFF | ||
51 : | edgomez | 1.6 | SECTION .rodata |
52 : | edgomez | 1.5 | %else |
53 : | edgomez | 1.6 | SECTION .rodata align=16 |
54 : | edgomez | 1.5 | %endif |
55 : | |||
56 : | ALIGN 16 | ||
57 : | mmx_one: | ||
58 : | times 8 db 1 | ||
59 : | |||
60 : | ;============================================================================= | ||
61 : | ; Code | ||
62 : | ;============================================================================= | ||
63 : | Isibaar | 1.1 | |
64 : | edgomez | 1.5 | SECTION .text |
65 : | Isibaar | 1.1 | |
66 : | cglobal interpolate8x8_halfpel_h_3dn | ||
67 : | cglobal interpolate8x8_halfpel_v_3dn | ||
68 : | cglobal interpolate8x8_halfpel_hv_3dn | ||
69 : | |||
70 : | edgomez | 1.5 | ;----------------------------------------------------------------------------- |
71 : | Isibaar | 1.1 | ; |
72 : | ; void interpolate8x8_halfpel_h_3dn(uint8_t * const dst, | ||
73 : | edgomez | 1.5 | ; const uint8_t * const src, |
74 : | ; const uint32_t stride, | ||
75 : | ; const uint32_t rounding); | ||
76 : | Isibaar | 1.1 | ; |
77 : | edgomez | 1.5 | ;----------------------------------------------------------------------------- |
78 : | Isibaar | 1.1 | |
79 : | %macro COPY_H_3DN_RND0 0 | ||
80 : | edgomez | 1.5 | movq mm0, [eax] |
81 : | Isibaar | 1.1 | pavgusb mm0, [eax+1] |
82 : | edgomez | 1.5 | movq mm1, [eax+edx] |
83 : | Isibaar | 1.1 | pavgusb mm1, [eax+edx+1] |
84 : | edgomez | 1.5 | lea eax, [eax+2*edx] |
85 : | movq [ecx], mm0 | ||
86 : | movq [ecx+edx], mm1 | ||
87 : | Isibaar | 1.1 | %endmacro |
88 : | |||
89 : | %macro COPY_H_3DN_RND1 0 | ||
90 : | movq mm0, [eax] | ||
91 : | movq mm1, [eax+edx] | ||
92 : | movq mm4, mm0 | ||
93 : | movq mm5, mm1 | ||
94 : | edgomez | 1.5 | movq mm2, [eax+1] |
95 : | Isibaar | 1.1 | movq mm3, [eax+edx+1] |
96 : | pavgusb mm0, mm2 | ||
97 : | pxor mm2, mm4 | ||
98 : | pavgusb mm1, mm3 | ||
99 : | edgomez | 1.5 | lea eax, [eax+2*edx] |
100 : | Isibaar | 1.1 | pxor mm3, mm5 |
101 : | pand mm2, mm7 | ||
102 : | pand mm3, mm7 | ||
103 : | psubb mm0, mm2 | ||
104 : | movq [ecx], mm0 | ||
105 : | psubb mm1, mm3 | ||
106 : | movq [ecx+edx], mm1 | ||
107 : | %endmacro | ||
108 : | |||
109 : | edgomez | 1.5 | ALIGN 16 |
110 : | Isibaar | 1.1 | interpolate8x8_halfpel_h_3dn: |
111 : | |||
112 : | mov eax, [esp+16] ; rounding | ||
113 : | mov ecx, [esp+ 4] ; Dst | ||
114 : | edgomez | 1.5 | test eax, eax |
115 : | Isibaar | 1.1 | mov eax, [esp+ 8] ; Src |
116 : | mov edx, [esp+12] ; stride | ||
117 : | |||
118 : | jnz near .rounding1 | ||
119 : | |||
120 : | COPY_H_3DN_RND0 | ||
121 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
122 : | Isibaar | 1.1 | COPY_H_3DN_RND0 |
123 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
124 : | Isibaar | 1.1 | COPY_H_3DN_RND0 |
125 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
126 : | Isibaar | 1.1 | COPY_H_3DN_RND0 |
127 : | ret | ||
128 : | |||
129 : | .rounding1 | ||
130 : | edgomez | 1.5 | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 |
131 : | Isibaar | 1.1 | movq mm7, [mmx_one] |
132 : | COPY_H_3DN_RND1 | ||
133 : | lea ecx, [ecx+2*edx] | ||
134 : | COPY_H_3DN_RND1 | ||
135 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
136 : | Isibaar | 1.1 | COPY_H_3DN_RND1 |
137 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
138 : | Isibaar | 1.1 | COPY_H_3DN_RND1 |
139 : | ret | ||
140 : | |||
141 : | |||
142 : | edgomez | 1.5 | ;----------------------------------------------------------------------------- |
143 : | Isibaar | 1.1 | ; |
144 : | ; void interpolate8x8_halfpel_v_3dn(uint8_t * const dst, | ||
145 : | edgomez | 1.5 | ; const uint8_t * const src, |
146 : | ; const uint32_t stride, | ||
147 : | ; const uint32_t rounding); | ||
148 : | Isibaar | 1.1 | ; |
149 : | edgomez | 1.5 | ;----------------------------------------------------------------------------- |
150 : | Isibaar | 1.1 | |
151 : | %macro COPY_V_3DN_RND0 0 | ||
152 : | edgomez | 1.5 | movq mm0, [eax] |
153 : | movq mm1, [eax+edx] | ||
154 : | Isibaar | 1.1 | pavgusb mm0, mm1 |
155 : | pavgusb mm1, [eax+2*edx] | ||
156 : | edgomez | 1.5 | lea eax, [eax+2*edx] |
157 : | movq [ecx], mm0 | ||
158 : | movq [ecx+edx], mm1 | ||
159 : | Isibaar | 1.1 | %endmacro |
160 : | |||
161 : | %macro COPY_V_3DN_RND1 0 | ||
162 : | movq mm0, mm2 | ||
163 : | movq mm1, [eax] | ||
164 : | movq mm2, [eax+edx] | ||
165 : | edgomez | 1.5 | lea eax, [eax+2*edx] |
166 : | Isibaar | 1.1 | movq mm4, mm0 |
167 : | movq mm5, mm1 | ||
168 : | pavgusb mm0, mm1 | ||
169 : | edgomez | 1.5 | pxor mm4, mm1 |
170 : | Isibaar | 1.1 | pavgusb mm1, mm2 |
171 : | pxor mm5, mm2 | ||
172 : | edgomez | 1.5 | pand mm4, mm7 ; lsb's of (i^j)... |
173 : | pand mm5, mm7 ; lsb's of (i^j)... | ||
174 : | psubb mm0, mm4 ; ...are substracted from result of pavgusb | ||
175 : | Isibaar | 1.1 | movq [ecx], mm0 |
176 : | edgomez | 1.5 | psubb mm1, mm5 ; ...are substracted from result of pavgusb |
177 : | Isibaar | 1.1 | movq [ecx+edx], mm1 |
178 : | %endmacro | ||
179 : | |||
180 : | edgomez | 1.5 | ALIGN 16 |
181 : | Isibaar | 1.1 | interpolate8x8_halfpel_v_3dn: |
182 : | |||
183 : | mov eax, [esp+16] ; rounding | ||
184 : | mov ecx, [esp+ 4] ; Dst | ||
185 : | test eax,eax | ||
186 : | mov eax, [esp+ 8] ; Src | ||
187 : | mov edx, [esp+12] ; stride | ||
188 : | |||
189 : | ; we process 2 line at a time | ||
190 : | |||
191 : | jnz near .rounding1 | ||
192 : | |||
193 : | COPY_V_3DN_RND0 | ||
194 : | lea ecx, [ecx+2*edx] | ||
195 : | COPY_V_3DN_RND0 | ||
196 : | lea ecx, [ecx+2*edx] | ||
197 : | COPY_V_3DN_RND0 | ||
198 : | lea ecx, [ecx+2*edx] | ||
199 : | COPY_V_3DN_RND0 | ||
200 : | ret | ||
201 : | |||
202 : | .rounding1 | ||
203 : | edgomez | 1.5 | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 |
204 : | Isibaar | 1.1 | movq mm7, [mmx_one] |
205 : | edgomez | 1.5 | movq mm2, [eax] ; loop invariant |
206 : | Isibaar | 1.1 | add eax, edx |
207 : | |||
208 : | COPY_V_3DN_RND1 | ||
209 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
210 : | Isibaar | 1.1 | COPY_V_3DN_RND1 |
211 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
212 : | Isibaar | 1.1 | COPY_V_3DN_RND1 |
213 : | edgomez | 1.5 | lea ecx, [ecx+2*edx] |
214 : | Isibaar | 1.1 | COPY_V_3DN_RND1 |
215 : | ret | ||
216 : | |||
217 : | |||
218 : | edgomez | 1.5 | ;----------------------------------------------------------------------------- |
219 : | Isibaar | 1.1 | ; |
220 : | ; void interpolate8x8_halfpel_hv_3dn(uint8_t * const dst, | ||
221 : | edgomez | 1.5 | ; const uint8_t * const src, |
222 : | ; const uint32_t stride, | ||
223 : | ; const uint32_t rounding); | ||
224 : | Isibaar | 1.1 | ; |
225 : | ; | ||
226 : | edgomez | 1.5 | ;----------------------------------------------------------------------------- |
227 : | Isibaar | 1.1 | |
228 : | ; The trick is to correct the result of 'pavgusb' with some combination of the | ||
229 : | ; lsb's of the 4 input values i,j,k,l, and their intermediate 'pavgusb' (s and t). | ||
230 : | ; The boolean relations are: | ||
231 : | edgomez | 1.5 | ; (i+j+k+l+3)/4 = (s+t+1)/2 - (ij&kl)&st |
232 : | Isibaar | 1.1 | ; (i+j+k+l+2)/4 = (s+t+1)/2 - (ij|kl)&st |
233 : | ; (i+j+k+l+1)/4 = (s+t+1)/2 - (ij&kl)|st | ||
234 : | ; (i+j+k+l+0)/4 = (s+t+1)/2 - (ij|kl)|st | ||
235 : | ; with s=(i+j+1)/2, t=(k+l+1)/2, ij = i^j, kl = k^l, st = s^t. | ||
236 : | |||
237 : | ; Moreover, we process 2 lines at a times, for better overlapping (~15% faster). | ||
238 : | |||
239 : | %macro COPY_HV_3DN_RND0 0 | ||
240 : | edgomez | 1.5 | lea eax, [eax+edx] |
241 : | |||
242 : | movq mm0, [eax] | ||
243 : | movq mm1, [eax+1] | ||
244 : | |||
245 : | movq mm6, mm0 | ||
246 : | pavgusb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
247 : | lea eax, [eax+edx] | ||
248 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
249 : | |||
250 : | por mm3, mm1 ; ij |= jk | ||
251 : | movq mm6, mm2 | ||
252 : | pxor mm6, mm0 ; mm6 = s^t | ||
253 : | pand mm3, mm6 ; (ij|jk) &= st | ||
254 : | pavgusb mm2, mm0 ; mm2 = (s+t+1)/2 | ||
255 : | pand mm3, mm7 ; mask lsb | ||
256 : | psubb mm2, mm3 ; apply. | ||
257 : | Isibaar | 1.1 | |
258 : | edgomez | 1.5 | movq [ecx], mm2 |
259 : | Isibaar | 1.1 | |
260 : | edgomez | 1.5 | movq mm2, [eax] |
261 : | movq mm3, [eax+1] | ||
262 : | movq mm6, mm2 | ||
263 : | pavgusb mm2, mm3 ; preserved for next iteration | ||
264 : | lea ecx, [ecx+edx] | ||
265 : | pxor mm3, mm6 ; preserved for next iteration | ||
266 : | |||
267 : | por mm1, mm3 | ||
268 : | movq mm6, mm0 | ||
269 : | pxor mm6, mm2 | ||
270 : | pand mm1, mm6 | ||
271 : | pavgusb mm0, mm2 | ||
272 : | Isibaar | 1.1 | |
273 : | edgomez | 1.5 | pand mm1, mm7 |
274 : | psubb mm0, mm1 | ||
275 : | Isibaar | 1.1 | |
276 : | edgomez | 1.5 | movq [ecx], mm0 |
277 : | Isibaar | 1.1 | %endmacro |
278 : | |||
279 : | %macro COPY_HV_3DN_RND1 0 | ||
280 : | edgomez | 1.5 | lea eax,[eax+edx] |
281 : | |||
282 : | movq mm0, [eax] | ||
283 : | movq mm1, [eax+1] | ||
284 : | |||
285 : | movq mm6, mm0 | ||
286 : | pavgusb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
287 : | lea eax, [eax+edx] | ||
288 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
289 : | |||
290 : | pand mm3, mm1 | ||
291 : | movq mm6, mm2 | ||
292 : | pxor mm6, mm0 | ||
293 : | por mm3, mm6 | ||
294 : | pavgusb mm2, mm0 | ||
295 : | pand mm3, mm7 | ||
296 : | psubb mm2, mm3 | ||
297 : | Isibaar | 1.1 | |
298 : | edgomez | 1.5 | movq [ecx], mm2 |
299 : | Isibaar | 1.1 | |
300 : | edgomez | 1.5 | movq mm2, [eax] |
301 : | movq mm3, [eax+1] | ||
302 : | movq mm6, mm2 | ||
303 : | pavgusb mm2, mm3 ; preserved for next iteration | ||
304 : | lea ecx, [ecx+edx] | ||
305 : | pxor mm3, mm6 ; preserved for next iteration | ||
306 : | |||
307 : | pand mm1, mm3 | ||
308 : | movq mm6, mm0 | ||
309 : | pxor mm6, mm2 | ||
310 : | por mm1, mm6 | ||
311 : | pavgusb mm0, mm2 | ||
312 : | pand mm1, mm7 | ||
313 : | psubb mm0, mm1 | ||
314 : | Isibaar | 1.1 | |
315 : | edgomez | 1.5 | movq [ecx], mm0 |
316 : | Isibaar | 1.1 | %endmacro |
317 : | |||
318 : | edgomez | 1.5 | ALIGN 16 |
319 : | Isibaar | 1.1 | interpolate8x8_halfpel_hv_3dn |
320 : | mov eax, [esp+16] ; rounding | ||
321 : | mov ecx, [esp+ 4] ; Dst | ||
322 : | edgomez | 1.5 | test eax, eax |
323 : | Isibaar | 1.1 | mov eax, [esp+ 8] ; Src |
324 : | mov edx, [esp+12] ; stride | ||
325 : | |||
326 : | movq mm7, [mmx_one] | ||
327 : | |||
328 : | ; loop invariants: mm2=(i+j+1)/2 and mm3= i^j | ||
329 : | movq mm2, [eax] | ||
330 : | movq mm3, [eax+1] | ||
331 : | movq mm6, mm2 | ||
332 : | pavgusb mm2, mm3 | ||
333 : | edgomez | 1.5 | pxor mm3, mm6 ; mm2/mm3 ready |
334 : | Isibaar | 1.1 | |
335 : | jnz near .rounding1 | ||
336 : | |||
337 : | COPY_HV_3DN_RND0 | ||
338 : | add ecx, edx | ||
339 : | COPY_HV_3DN_RND0 | ||
340 : | add ecx, edx | ||
341 : | COPY_HV_3DN_RND0 | ||
342 : | add ecx, edx | ||
343 : | COPY_HV_3DN_RND0 | ||
344 : | ret | ||
345 : | |||
346 : | .rounding1 | ||
347 : | COPY_HV_3DN_RND1 | ||
348 : | add ecx, edx | ||
349 : | COPY_HV_3DN_RND1 | ||
350 : | add ecx, edx | ||
351 : | COPY_HV_3DN_RND1 | ||
352 : | add ecx, edx | ||
353 : | COPY_HV_3DN_RND1 | ||
354 : | edgomez | 1.5 | ret |
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