Parent Directory | Revision Log
Revision 1877 - (view) (download)
1 : | edgomez | 1382 | ;/**************************************************************************** |
2 : | ; * | ||
3 : | ; * XVID MPEG-4 VIDEO CODEC | ||
4 : | ; * - 3dne Quantization/Dequantization - | ||
5 : | ; * | ||
6 : | ; * Copyright (C) 2002-2003 Peter Ross <pross@xvid.org> | ||
7 : | ; * 2002 Jaan Kalda | ||
8 : | ; * | ||
9 : | ; * This program is free software ; you can redistribute it and/or modify | ||
10 : | ; * it under the terms of the GNU General Public License as published by | ||
11 : | ; * the Free Software Foundation ; either version 2 of the License, or | ||
12 : | ; * (at your option) any later version. | ||
13 : | ; * | ||
14 : | ; * This program is distributed in the hope that it will be useful, | ||
15 : | ; * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
16 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 : | ; * GNU General Public License for more details. | ||
18 : | ; * | ||
19 : | ; * You should have received a copy of the GNU General Public License | ||
20 : | ; * along with this program ; if not, write to the Free Software | ||
21 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 : | ; * | ||
23 : | Isibaar | 1877 | ; * $Id: quantize_mpeg_xmm.asm,v 1.13 2009-09-16 17:07:58 Isibaar Exp $ |
24 : | edgomez | 1382 | ; * |
25 : | ; ***************************************************************************/ | ||
26 : | |||
27 : | ; _3dne functions are compatible with iSSE, but are optimized specifically | ||
28 : | ; for K7 pipelines | ||
29 : | |||
30 : | %define SATURATE | ||
31 : | |||
32 : | Isibaar | 1795 | %include "nasm.inc" |
33 : | edgomez | 1382 | |
34 : | ;============================================================================= | ||
35 : | ; Local data | ||
36 : | ;============================================================================= | ||
37 : | |||
38 : | Isibaar | 1795 | DATA |
39 : | edgomez | 1382 | |
40 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
41 : | edgomez | 1382 | mmzero: |
42 : | dd 0,0 | ||
43 : | mmx_one: | ||
44 : | times 4 dw 1 | ||
45 : | |||
46 : | ;----------------------------------------------------------------------------- | ||
47 : | ; divide by 2Q table | ||
48 : | ;----------------------------------------------------------------------------- | ||
49 : | |||
50 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
51 : | edgomez | 1382 | mmx_divs: ;i>2 |
52 : | %assign i 1 | ||
53 : | %rep 31 | ||
54 : | times 4 dw ((1 << 15) / i + 1) | ||
55 : | %assign i i+1 | ||
56 : | %endrep | ||
57 : | |||
58 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
59 : | edgomez | 1382 | mmx_div: ;quant>2 |
60 : | times 4 dw 65535 ; the div by 2 formula will overflow for the case | ||
61 : | ; quant=1 but we don't care much because quant=1 | ||
62 : | ; is handled by a different piece of code that | ||
63 : | ; doesn't use this table. | ||
64 : | %assign quant 2 | ||
65 : | %rep 31 | ||
66 : | times 4 dw ((1 << 16) / quant + 1) | ||
67 : | %assign quant quant+1 | ||
68 : | %endrep | ||
69 : | |||
70 : | %macro FIXX 1 | ||
71 : | dw (1 << 16) / (%1) + 1 | ||
72 : | %endmacro | ||
73 : | |||
74 : | Isibaar | 1795 | %ifndef ARCH_IS_X86_64 |
75 : | edgomez | 1382 | %define nop4 db 08Dh, 074h, 026h,0 |
76 : | Isibaar | 1795 | %define nop7 db 08dh, 02ch, 02dh,0,0,0,0 |
77 : | %else | ||
78 : | %define nop4 | ||
79 : | %define nop7 | ||
80 : | %endif | ||
81 : | %define nop3 add _ESP, byte 0 | ||
82 : | %define nop2 mov _ESP, _ESP | ||
83 : | %define nop6 add _EBP, dword 0 | ||
84 : | edgomez | 1382 | |
85 : | ;----------------------------------------------------------------------------- | ||
86 : | ; quantd table | ||
87 : | ;----------------------------------------------------------------------------- | ||
88 : | |||
89 : | %define VM18P 3 | ||
90 : | %define VM18Q 4 | ||
91 : | |||
92 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
93 : | edgomez | 1382 | quantd: |
94 : | %assign i 1 | ||
95 : | %rep 31 | ||
96 : | times 4 dw (((VM18P*i) + (VM18Q/2)) / VM18Q) | ||
97 : | %assign i i+1 | ||
98 : | %endrep | ||
99 : | |||
100 : | ;----------------------------------------------------------------------------- | ||
101 : | ; multiple by 2Q table | ||
102 : | ;----------------------------------------------------------------------------- | ||
103 : | |||
104 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
105 : | edgomez | 1382 | mmx_mul_quant: |
106 : | %assign i 1 | ||
107 : | %rep 31 | ||
108 : | times 4 dw i | ||
109 : | %assign i i+1 | ||
110 : | %endrep | ||
111 : | |||
112 : | ;----------------------------------------------------------------------------- | ||
113 : | ; saturation limits | ||
114 : | ;----------------------------------------------------------------------------- | ||
115 : | |||
116 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
117 : | edgomez | 1382 | mmx_32767_minus_2047: |
118 : | times 4 dw (32767-2047) | ||
119 : | mmx_32768_minus_2048: | ||
120 : | times 4 dw (32768-2048) | ||
121 : | mmx_2047: | ||
122 : | times 4 dw 2047 | ||
123 : | mmx_minus_2048: | ||
124 : | times 4 dw (-2048) | ||
125 : | zero: | ||
126 : | times 4 dw 0 | ||
127 : | |||
128 : | int_div: | ||
129 : | dd 0 | ||
130 : | %assign i 1 | ||
131 : | %rep 255 | ||
132 : | dd (1 << 17) / ( i) + 1 | ||
133 : | %assign i i+1 | ||
134 : | %endrep | ||
135 : | |||
136 : | ;============================================================================= | ||
137 : | ; Code | ||
138 : | ;============================================================================= | ||
139 : | |||
140 : | Isibaar | 1844 | TEXT |
141 : | edgomez | 1382 | |
142 : | cglobal quant_mpeg_inter_xmm | ||
143 : | cglobal dequant_mpeg_intra_3dne | ||
144 : | cglobal dequant_mpeg_inter_3dne | ||
145 : | |||
146 : | ;----------------------------------------------------------------------------- | ||
147 : | ; | ||
148 : | ; uint32_t quant_mpeg_inter_xmm(int16_t * coeff, | ||
149 : | ; const int16_t const * data, | ||
150 : | ; const uint32_t quant, | ||
151 : | ; const uint16_t *mpeg_matrices); | ||
152 : | ; | ||
153 : | ;----------------------------------------------------------------------------- | ||
154 : | |||
155 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
156 : | edgomez | 1382 | quant_mpeg_inter_xmm: |
157 : | Isibaar | 1795 | mov _EAX, prm2 ; data |
158 : | mov TMP0, prm3 ; quant | ||
159 : | mov TMP1, prm1 ; coeff | ||
160 : | push _ESI | ||
161 : | push _EDI | ||
162 : | push _EBX | ||
163 : | edgomez | 1382 | nop |
164 : | Isibaar | 1795 | %ifdef ARCH_IS_X86_64 |
165 : | mov _EDI, prm4 | ||
166 : | %else | ||
167 : | mov _EDI, [_ESP + 12 + 16] | ||
168 : | %endif | ||
169 : | |||
170 : | mov _ESI, -14 | ||
171 : | mov _EBX, _ESP | ||
172 : | sub _ESP, byte 24 | ||
173 : | lea _EBX, [_ESP+8] | ||
174 : | and _EBX, byte -8 ;ALIGN 8 | ||
175 : | edgomez | 1382 | pxor mm0, mm0 |
176 : | pxor mm3, mm3 | ||
177 : | Isibaar | 1795 | movq [byte _EBX],mm0 |
178 : | movq [_EBX+8],mm0 | ||
179 : | Isibaar | 1798 | |
180 : | Isibaar | 1795 | cmp TMP0, byte 1 |
181 : | edgomez | 1382 | je near .q1loop |
182 : | Isibaar | 1795 | cmp TMP0, byte 19 |
183 : | edgomez | 1382 | jg near .lloop |
184 : | nop | ||
185 : | |||
186 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
187 : | Isibaar | 1793 | .loop: |
188 : | Isibaar | 1795 | movq mm1, [_EAX + 8*_ESI+112] ; mm0 = [1st] |
189 : | edgomez | 1382 | psubw mm0, mm1 ;-mm1 |
190 : | Isibaar | 1795 | movq mm4, [_EAX + 8*_ESI + 120] ; |
191 : | edgomez | 1382 | psubw mm3, mm4 ;-mm4 |
192 : | pmaxsw mm0, mm1 ;|src| | ||
193 : | pmaxsw mm3, mm4 | ||
194 : | nop2 | ||
195 : | psraw mm1, 15 ;sign src | ||
196 : | psraw mm4, 15 | ||
197 : | psllw mm0, 4 ; level << 4 | ||
198 : | psllw mm3, 4 ; | ||
199 : | Isibaar | 1795 | paddw mm0, [_EDI + 640 + 8*_ESI+112] |
200 : | paddw mm3, [_EDI + 640 + 8*_ESI+120] | ||
201 : | movq mm5, [_EDI + 896 + 8*_ESI+112] | ||
202 : | movq mm7, [_EDI + 896 + 8*_ESI+120] | ||
203 : | edgomez | 1382 | pmulhuw mm5, mm0 |
204 : | pmulhuw mm7, mm3 | ||
205 : | Isibaar | 1795 | mov _ESP, _ESP |
206 : | movq mm2, [_EDI + 512 + 8*_ESI+112] | ||
207 : | movq mm6, [_EDI + 512 + 8*_ESI+120] | ||
208 : | edgomez | 1382 | pmullw mm2, mm5 |
209 : | pmullw mm6, mm7 | ||
210 : | psubw mm0, mm2 | ||
211 : | psubw mm3, mm6 | ||
212 : | Isibaar | 1795 | movq mm2, [byte _EBX] |
213 : | %ifdef ARCH_IS_X86_64 | ||
214 : | lea r9, [mmx_divs] | ||
215 : | movq mm6, [r9 + TMP0 * 8 - 8] | ||
216 : | %else | ||
217 : | movq mm6, [mmx_divs + TMP0 * 8 - 8] | ||
218 : | %endif | ||
219 : | pmulhuw mm0, [_EDI + 768 + 8*_ESI+112] | ||
220 : | pmulhuw mm3, [_EDI + 768 + 8*_ESI+120] | ||
221 : | paddw mm2, [_EBX+8] ;sum | ||
222 : | edgomez | 1382 | paddw mm5, mm0 |
223 : | paddw mm7, mm3 | ||
224 : | pxor mm0, mm0 | ||
225 : | pxor mm3, mm3 | ||
226 : | pmulhuw mm5, mm6 ; mm0 = (mm0 / 2Q) >> 16 | ||
227 : | pmulhuw mm7, mm6 ; (level ) / quant (0<quant<32) | ||
228 : | Isibaar | 1795 | add _ESI, byte 2 |
229 : | edgomez | 1382 | paddw mm2, mm5 ;sum += x1 |
230 : | Isibaar | 1795 | movq [_EBX], mm7 ;store x2 |
231 : | edgomez | 1382 | pxor mm5, mm1 ; mm0 *= sign(mm0) |
232 : | pxor mm7, mm4 ; | ||
233 : | psubw mm5, mm1 ; undisplace | ||
234 : | psubw mm7, mm4 ; | ||
235 : | Isibaar | 1795 | movq [_EBX+8],mm2 ;store sum |
236 : | movq [TMP1 + 8*_ESI+112-16], mm5 | ||
237 : | movq [TMP1 + 8*_ESI +120-16], mm7 | ||
238 : | edgomez | 1382 | jng near .loop |
239 : | |||
240 : | Isibaar | 1793 | .done: |
241 : | edgomez | 1382 | ; calculate data[0] // (int32_t)dcscalar) |
242 : | Isibaar | 1795 | paddw mm2, [_EBX] |
243 : | mov _EBX, [_ESP+24] | ||
244 : | mov _EDI, [_ESP+PTR_SIZE+24] | ||
245 : | mov _ESI, [_ESP+2*PTR_SIZE+24] | ||
246 : | add _ESP, byte 3*PTR_SIZE+24 | ||
247 : | edgomez | 1382 | pmaddwd mm2, [mmx_one] |
248 : | punpckldq mm0, mm2 ;get low dw to mm0:high | ||
249 : | paddd mm0,mm2 | ||
250 : | punpckhdq mm0, mm0 ;get result to low | ||
251 : | movd eax, mm0 | ||
252 : | |||
253 : | ret | ||
254 : | |||
255 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
256 : | Isibaar | 1793 | .q1loop: |
257 : | Isibaar | 1795 | movq mm1, [_EAX + 8*_ESI+112] ; mm0 = [1st] |
258 : | edgomez | 1382 | psubw mm0, mm1 ;-mm1 |
259 : | Isibaar | 1795 | movq mm4, [_EAX + 8*_ESI+120] |
260 : | edgomez | 1382 | psubw mm3, mm4 ;-mm4 |
261 : | pmaxsw mm0, mm1 ;|src| | ||
262 : | pmaxsw mm3, mm4 | ||
263 : | nop2 | ||
264 : | psraw mm1, 15 ; sign src | ||
265 : | psraw mm4, 15 | ||
266 : | psllw mm0, 4 ; level << 4 | ||
267 : | psllw mm3, 4 | ||
268 : | Isibaar | 1795 | paddw mm0, [_EDI + 640 + 8*_ESI+112] ;mm0 is to be divided |
269 : | paddw mm3, [_EDI + 640 + 8*_ESI+120] ; inter1 contains fix for division by 1 | ||
270 : | movq mm5, [_EDI + 896 + 8*_ESI+112] ;with rounding down | ||
271 : | movq mm7, [_EDI + 896 + 8*_ESI+120] | ||
272 : | edgomez | 1382 | pmulhuw mm5, mm0 |
273 : | pmulhuw mm7, mm3 ;mm7: first approx of division | ||
274 : | Isibaar | 1795 | mov _ESP, _ESP |
275 : | movq mm2, [_EDI + 512 + 8*_ESI+112] | ||
276 : | movq mm6, [_EDI + 512 + 8*_ESI+120] ; divs for q<=16 | ||
277 : | edgomez | 1382 | pmullw mm2, mm5 ;test value <= original |
278 : | pmullw mm6, mm7 | ||
279 : | psubw mm0, mm2 ;mismatch | ||
280 : | psubw mm3, mm6 | ||
281 : | Isibaar | 1795 | movq mm2, [byte _EBX] |
282 : | pmulhuw mm0, [_EDI + 768 + 8*_ESI+112] ;correction | ||
283 : | pmulhuw mm3, [_EDI + 768 + 8*_ESI+120] | ||
284 : | paddw mm2, [_EBX+8] ;sum | ||
285 : | edgomez | 1382 | paddw mm5, mm0 ;final result |
286 : | paddw mm7, mm3 | ||
287 : | pxor mm0, mm0 | ||
288 : | pxor mm3, mm3 | ||
289 : | psrlw mm5, 1 ; (level ) /2 (quant = 1) | ||
290 : | psrlw mm7, 1 | ||
291 : | Isibaar | 1795 | add _ESI, byte 2 |
292 : | edgomez | 1382 | paddw mm2, mm5 ;sum += x1 |
293 : | Isibaar | 1795 | movq [_EBX], mm7 ;store x2 |
294 : | edgomez | 1382 | pxor mm5, mm1 ; mm0 *= sign(mm0) |
295 : | pxor mm7, mm4 ; | ||
296 : | psubw mm5, mm1 ; undisplace | ||
297 : | psubw mm7, mm4 ; | ||
298 : | Isibaar | 1795 | movq [_EBX+8], mm2 ;store sum |
299 : | movq [TMP1 + 8*_ESI+112-16], mm5 | ||
300 : | movq [TMP1 + 8*_ESI +120-16], mm7 | ||
301 : | edgomez | 1382 | jng near .q1loop |
302 : | jmp near .done | ||
303 : | |||
304 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
305 : | Isibaar | 1793 | .lloop: |
306 : | Isibaar | 1795 | movq mm1, [_EAX + 8*_ESI+112] ; mm0 = [1st] |
307 : | edgomez | 1382 | psubw mm0,mm1 ;-mm1 |
308 : | Isibaar | 1795 | movq mm4, [_EAX + 8*_ESI+120] |
309 : | edgomez | 1382 | psubw mm3,mm4 ;-mm4 |
310 : | pmaxsw mm0,mm1 ;|src| | ||
311 : | pmaxsw mm3,mm4 | ||
312 : | nop2 | ||
313 : | psraw mm1,15 ;sign src | ||
314 : | psraw mm4,15 | ||
315 : | psllw mm0, 4 ; level << 4 | ||
316 : | psllw mm3, 4 ; | ||
317 : | Isibaar | 1795 | paddw mm0, [_EDI + 640 + 8*_ESI+112] ;mm0 is to be divided inter1 contains fix for division by 1 |
318 : | paddw mm3, [_EDI + 640 + 8*_ESI+120] | ||
319 : | movq mm5,[_EDI + 896 + 8*_ESI+112] | ||
320 : | movq mm7,[_EDI + 896 + 8*_ESI+120] | ||
321 : | edgomez | 1382 | pmulhuw mm5,mm0 |
322 : | pmulhuw mm7,mm3 ;mm7: first approx of division | ||
323 : | Isibaar | 1795 | mov _ESP,_ESP |
324 : | movq mm2,[_EDI + 512 + 8*_ESI+112] | ||
325 : | movq mm6,[_EDI + 512 + 8*_ESI+120] | ||
326 : | edgomez | 1382 | pmullw mm2,mm5 ;test value <= original |
327 : | pmullw mm6,mm7 | ||
328 : | psubw mm0,mm2 ;mismatch | ||
329 : | psubw mm3,mm6 | ||
330 : | Isibaar | 1795 | movq mm2,[byte _EBX] |
331 : | %ifdef ARCH_IS_X86_64 | ||
332 : | lea r9, [mmx_div] | ||
333 : | movq mm6, [r9 + TMP0 * 8 - 8] | ||
334 : | %else | ||
335 : | movq mm6,[mmx_div + TMP0 * 8 - 8] ; divs for q<=16 | ||
336 : | %endif | ||
337 : | pmulhuw mm0,[_EDI + 768 + 8*_ESI+112] ;correction | ||
338 : | pmulhuw mm3,[_EDI + 768 + 8*_ESI+120] | ||
339 : | paddw mm2,[_EBX+8] ;sum | ||
340 : | edgomez | 1382 | paddw mm5,mm0 ;final result |
341 : | paddw mm7,mm3 | ||
342 : | pxor mm0,mm0 | ||
343 : | pxor mm3,mm3 | ||
344 : | pmulhuw mm5, mm6 ; mm0 = (mm0 / 2Q) >> 16 | ||
345 : | pmulhuw mm7, mm6 ; (level ) / quant (0<quant<32) | ||
346 : | Isibaar | 1795 | add _ESI,byte 2 |
347 : | edgomez | 1382 | psrlw mm5, 1 ; (level ) / (2*quant) |
348 : | paddw mm2,mm5 ;sum += x1 | ||
349 : | psrlw mm7, 1 | ||
350 : | Isibaar | 1795 | movq [_EBX],mm7 ;store x2 |
351 : | edgomez | 1382 | pxor mm5, mm1 ; mm0 *= sign(mm0) |
352 : | pxor mm7, mm4 ; | ||
353 : | psubw mm5, mm1 ; undisplace | ||
354 : | psubw mm7, mm4 ; | ||
355 : | Isibaar | 1795 | movq [_EBX+8], mm2 ;store sum |
356 : | movq [TMP1 + 8*_ESI+112-16], mm5 | ||
357 : | movq [TMP1 + 8*_ESI +120-16], mm7 | ||
358 : | edgomez | 1382 | jng near .lloop |
359 : | jmp near .done | ||
360 : | Isibaar | 1793 | ENDFUNC |
361 : | edgomez | 1382 | |
362 : | |||
363 : | ;----------------------------------------------------------------------------- | ||
364 : | ; | ||
365 : | ; uint32_t dequant_mpeg_intra_3dne(int16_t *data, | ||
366 : | ; const int16_t const *coeff, | ||
367 : | ; const uint32_t quant, | ||
368 : | ; const uint32_t dcscalar, | ||
369 : | ; const uint16_t *mpeg_matrices); | ||
370 : | ; | ||
371 : | ;----------------------------------------------------------------------------- | ||
372 : | |||
373 : | ; Note: in order to saturate 'easily', we pre-shift the quantifier | ||
374 : | ; by 4. Then, the high-word of (coeff[]*matrix[i]*quant) are used to | ||
375 : | ; build a saturating mask. It is non-zero only when an overflow occured. | ||
376 : | ; We thus avoid packing/unpacking toward double-word. | ||
377 : | ; Moreover, we perform the mult (matrix[i]*quant) first, instead of, e.g., | ||
378 : | ; (coeff[i]*matrix[i]). This is less prone to overflow if coeff[] are not | ||
379 : | ; checked. Input ranges are: coeff in [-127,127], inter_matrix in [1..255],a | ||
380 : | ; and quant in [1..31]. | ||
381 : | ; | ||
382 : | |||
383 : | %macro DEQUANT4INTRAMMX 1 | ||
384 : | Isibaar | 1795 | movq mm1, [byte TMP0+ 16 * %1] ; mm0 = c = coeff[i] |
385 : | movq mm4, [TMP0+ 16 * %1 +8] ; mm3 = c' = coeff[i+1] | ||
386 : | edgomez | 1382 | psubw mm0, mm1 |
387 : | psubw mm3, mm4 | ||
388 : | pmaxsw mm0, mm1 | ||
389 : | pmaxsw mm3, mm4 | ||
390 : | psraw mm1, 15 | ||
391 : | psraw mm4, 15 | ||
392 : | %if %1 | ||
393 : | Isibaar | 1795 | movq mm2, [_EAX+8] ;preshifted quant |
394 : | movq mm7, [_EAX+8] | ||
395 : | edgomez | 1382 | %endif |
396 : | Isibaar | 1795 | pmullw mm2, [TMP1 + 16 * %1 ] ; matrix[i]*quant |
397 : | pmullw mm7, [TMP1 + 16 * %1 +8] ; matrix[i+1]*quant | ||
398 : | edgomez | 1382 | movq mm5, mm0 |
399 : | movq mm6, mm3 | ||
400 : | pmulhw mm0, mm2 ; high of coeff*(matrix*quant) | ||
401 : | pmulhw mm3, mm7 ; high of coeff*(matrix*quant) | ||
402 : | pmullw mm2, mm5 ; low of coeff*(matrix*quant) | ||
403 : | pmullw mm7, mm6 ; low of coeff*(matrix*quant) | ||
404 : | Isibaar | 1795 | pcmpgtw mm0, [_EAX] |
405 : | pcmpgtw mm3, [_EAX] | ||
406 : | edgomez | 1382 | paddusw mm2, mm0 |
407 : | paddusw mm7, mm3 | ||
408 : | psrlw mm2, 5 | ||
409 : | psrlw mm7, 5 | ||
410 : | pxor mm2, mm1 ; start negating back | ||
411 : | pxor mm7, mm4 ; start negating back | ||
412 : | psubusw mm1, mm0 | ||
413 : | psubusw mm4, mm3 | ||
414 : | Isibaar | 1795 | movq mm0, [_EAX] ;zero |
415 : | movq mm3, [_EAX] ;zero | ||
416 : | edgomez | 1382 | psubw mm2, mm1 ; finish negating back |
417 : | psubw mm7, mm4 ; finish negating back | ||
418 : | Isibaar | 1795 | movq [byte _EDI + 16 * %1], mm2 ; data[i] |
419 : | movq [_EDI + 16 * %1 +8], mm7 ; data[i+1] | ||
420 : | edgomez | 1382 | %endmacro |
421 : | |||
422 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
423 : | edgomez | 1382 | dequant_mpeg_intra_3dne: |
424 : | Isibaar | 1795 | mov _EAX, prm3 ; quant |
425 : | %ifdef ARCH_IS_X86_64 | ||
426 : | lea TMP0, [mmx_mul_quant] | ||
427 : | movq mm7, [TMP0 + _EAX*8 - 8] | ||
428 : | %else | ||
429 : | movq mm7, [mmx_mul_quant + _EAX*8 - 8] | ||
430 : | %endif | ||
431 : | mov TMP0, prm2 ; coeff | ||
432 : | psllw mm7, 2 ; << 2. See comment. | ||
433 : | mov TMP1, prm5 ; mpeg_quant_matrices | ||
434 : | push _EBX | ||
435 : | Isibaar | 1845 | movsx _EBX, word [TMP0] |
436 : | edgomez | 1382 | pxor mm0, mm0 |
437 : | pxor mm3, mm3 | ||
438 : | Isibaar | 1795 | push _ESI |
439 : | lea _EAX, [_ESP-28] | ||
440 : | sub _ESP, byte 32 | ||
441 : | and _EAX, byte -8 ;points to qword ALIGNed space on stack | ||
442 : | movq [_EAX], mm0 | ||
443 : | movq [_EAX+8], mm7 | ||
444 : | %ifdef ARCH_IS_X86_64 | ||
445 : | imul _EBX, prm4 ; dcscalar | ||
446 : | %else | ||
447 : | imul _EBX, [_ESP+16+8+32] ; dcscalar | ||
448 : | %endif | ||
449 : | edgomez | 1382 | movq mm2, mm7 |
450 : | Isibaar | 1795 | push _EDI |
451 : | edgomez | 1382 | |
452 : | Isibaar | 1795 | %ifdef ARCH_IS_X86_64 |
453 : | mov _EDI, prm1 ; data | ||
454 : | %else | ||
455 : | mov _EDI, [_ESP+4+12+32] | ||
456 : | %endif | ||
457 : | |||
458 : | ALIGN SECTION_ALIGN | ||
459 : | |||
460 : | edgomez | 1382 | DEQUANT4INTRAMMX 0 |
461 : | |||
462 : | Isibaar | 1795 | mov _ESI, -2048 |
463 : | edgomez | 1382 | nop |
464 : | Isibaar | 1795 | cmp _EBX, _ESI |
465 : | edgomez | 1382 | |
466 : | DEQUANT4INTRAMMX 1 | ||
467 : | |||
468 : | Isibaar | 1795 | cmovl _EBX, _ESI |
469 : | neg _ESI | ||
470 : | sub _ESI, byte 1 ;2047 | ||
471 : | edgomez | 1382 | |
472 : | DEQUANT4INTRAMMX 2 | ||
473 : | |||
474 : | Isibaar | 1795 | cmp _EBX, _ESI |
475 : | cmovg _EBX, _ESI | ||
476 : | lea _EBP, [byte _EBP] | ||
477 : | edgomez | 1382 | |
478 : | DEQUANT4INTRAMMX 3 | ||
479 : | |||
480 : | Isibaar | 1795 | mov _ESI, [_ESP+32+PTR_SIZE] |
481 : | mov [byte _EDI], bx | ||
482 : | mov _EBX, [_ESP+32+2*PTR_SIZE] | ||
483 : | edgomez | 1382 | |
484 : | DEQUANT4INTRAMMX 4 | ||
485 : | DEQUANT4INTRAMMX 5 | ||
486 : | DEQUANT4INTRAMMX 6 | ||
487 : | DEQUANT4INTRAMMX 7 | ||
488 : | |||
489 : | Isibaar | 1795 | pop _EDI |
490 : | edgomez | 1382 | |
491 : | Isibaar | 1795 | add _ESP, byte 32+2*PTR_SIZE |
492 : | edgomez | 1382 | |
493 : | Isibaar | 1795 | xor _EAX, _EAX |
494 : | edgomez | 1382 | ret |
495 : | Isibaar | 1793 | ENDFUNC |
496 : | edgomez | 1382 | |
497 : | ;----------------------------------------------------------------------------- | ||
498 : | ; | ||
499 : | ; uint32_t dequant_mpeg_inter_3dne(int16_t * data, | ||
500 : | ; const int16_t * const coeff, | ||
501 : | ; const uint32_t quant, | ||
502 : | ; const uint16_t *mpeg_matrices); | ||
503 : | ; | ||
504 : | ;----------------------------------------------------------------------------- | ||
505 : | |||
506 : | ; Note: We use (2*c + sgn(c) - sgn(-c)) as multiplier | ||
507 : | ; so we handle the 3 cases: c<0, c==0, and c>0 in one shot. | ||
508 : | ; sgn(x) is the result of 'pcmpgtw 0,x': 0 if x>=0, -1 if x<0. | ||
509 : | ; It's mixed with the extraction of the absolute value. | ||
510 : | |||
511 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
512 : | edgomez | 1382 | dequant_mpeg_inter_3dne: |
513 : | Isibaar | 1795 | mov _EAX, prm3 ; quant |
514 : | %ifdef ARCH_IS_X86_64 | ||
515 : | lea TMP0, [mmx_mul_quant] | ||
516 : | movq mm7, [TMP0 + _EAX*8 - 8] | ||
517 : | %else | ||
518 : | movq mm7, [mmx_mul_quant + _EAX*8 - 8] | ||
519 : | %endif | ||
520 : | mov TMP1, prm1 ; data | ||
521 : | mov TMP0, prm2 ; coeff | ||
522 : | mov _EAX, -14 | ||
523 : | edgomez | 1382 | paddw mm7, mm7 ; << 1 |
524 : | pxor mm6, mm6 ; mismatch sum | ||
525 : | Isibaar | 1795 | push _ESI |
526 : | push _EDI | ||
527 : | Isibaar | 1845 | lea _ESI, [mmzero] |
528 : | edgomez | 1382 | pxor mm1, mm1 |
529 : | pxor mm3, mm3 | ||
530 : | Isibaar | 1795 | %ifdef ARCH_IS_X86_64 |
531 : | mov _EDI, prm4 | ||
532 : | %else | ||
533 : | mov _EDI, [_ESP + 8 + 16] ; mpeg_quant_matrices | ||
534 : | %endif | ||
535 : | edgomez | 1382 | nop |
536 : | nop4 | ||
537 : | |||
538 : | Isibaar | 1795 | ALIGN SECTION_ALIGN |
539 : | Isibaar | 1793 | .loop: |
540 : | Isibaar | 1795 | movq mm0, [TMP0+8*_EAX + 7*16 ] ; mm0 = coeff[i] |
541 : | edgomez | 1382 | pcmpgtw mm1, mm0 ; mm1 = sgn(c) (preserved) |
542 : | Isibaar | 1795 | movq mm2, [TMP0+8*_EAX + 7*16 +8] ; mm2 = coeff[i+1] |
543 : | edgomez | 1382 | pcmpgtw mm3, mm2 ; mm3 = sgn(c') (preserved) |
544 : | paddsw mm0, mm1 ; c += sgn(c) | ||
545 : | paddsw mm2, mm3 ; c += sgn(c') | ||
546 : | paddw mm0, mm0 ; c *= 2 | ||
547 : | paddw mm2, mm2 ; c'*= 2 | ||
548 : | |||
549 : | Isibaar | 1795 | movq mm4, [_ESI] |
550 : | movq mm5, [_ESI] | ||
551 : | edgomez | 1382 | psubw mm4, mm0 ; -c |
552 : | psubw mm5, mm2 ; -c' | ||
553 : | |||
554 : | psraw mm4, 16 ; mm4 = sgn(-c) | ||
555 : | psraw mm5, 16 ; mm5 = sgn(-c') | ||
556 : | psubsw mm0, mm4 ; c -= sgn(-c) | ||
557 : | psubsw mm2, mm5 ; c' -= sgn(-c') | ||
558 : | pxor mm0, mm1 ; finish changing sign if needed | ||
559 : | pxor mm2, mm3 ; finish changing sign if needed | ||
560 : | |||
561 : | ; we're short on register, here. Poor pairing... | ||
562 : | |||
563 : | movq mm4, mm7 ; (matrix*quant) | ||
564 : | nop | ||
565 : | Isibaar | 1795 | pmullw mm4, [_EDI + 512 + 8*_EAX + 7*16] |
566 : | edgomez | 1382 | movq mm5, mm4 |
567 : | pmulhw mm5, mm0 ; high of c*(matrix*quant) | ||
568 : | pmullw mm0, mm4 ; low of c*(matrix*quant) | ||
569 : | |||
570 : | movq mm4, mm7 ; (matrix*quant) | ||
571 : | Isibaar | 1795 | pmullw mm4, [_EDI + 512 + 8*_EAX + 7*16 + 8] |
572 : | add _EAX, byte 2 | ||
573 : | edgomez | 1382 | |
574 : | Isibaar | 1795 | pcmpgtw mm5, [_ESI] |
575 : | edgomez | 1382 | paddusw mm0, mm5 |
576 : | psrlw mm0, 5 | ||
577 : | pxor mm0, mm1 ; start restoring sign | ||
578 : | psubusw mm1, mm5 | ||
579 : | |||
580 : | movq mm5, mm4 | ||
581 : | pmulhw mm5, mm2 ; high of c*(matrix*quant) | ||
582 : | pmullw mm2, mm4 ; low of c*(matrix*quant) | ||
583 : | psubw mm0, mm1 ; finish restoring sign | ||
584 : | |||
585 : | Isibaar | 1795 | pcmpgtw mm5, [_ESI] |
586 : | edgomez | 1382 | paddusw mm2, mm5 |
587 : | psrlw mm2, 5 | ||
588 : | pxor mm2, mm3 ; start restoring sign | ||
589 : | psubusw mm3, mm5 | ||
590 : | psubw mm2, mm3 ; finish restoring sign | ||
591 : | Isibaar | 1795 | movq mm1, [_ESI] |
592 : | movq mm3, [byte _ESI] | ||
593 : | edgomez | 1382 | pxor mm6, mm0 ; mismatch control |
594 : | Isibaar | 1795 | movq [TMP1 + 8*_EAX + 7*16 -2*8 ], mm0 ; data[i] |
595 : | edgomez | 1382 | pxor mm6, mm2 ; mismatch control |
596 : | Isibaar | 1795 | movq [TMP1 + 8*_EAX + 7*16 -2*8 +8], mm2 ; data[i+1] |
597 : | edgomez | 1382 | |
598 : | jng .loop | ||
599 : | nop | ||
600 : | |||
601 : | ; mismatch control | ||
602 : | |||
603 : | pshufw mm0, mm6, 01010101b | ||
604 : | pshufw mm1, mm6, 10101010b | ||
605 : | pshufw mm2, mm6, 11111111b | ||
606 : | pxor mm6, mm0 | ||
607 : | pxor mm1, mm2 | ||
608 : | pxor mm6, mm1 | ||
609 : | movd eax, mm6 | ||
610 : | Isibaar | 1795 | pop _EDI |
611 : | and _EAX, byte 1 | ||
612 : | xor _EAX, byte 1 | ||
613 : | mov _ESI, [_ESP] | ||
614 : | add _ESP, byte PTR_SIZE | ||
615 : | xor word [TMP1 + 2*63], ax | ||
616 : | edgomez | 1382 | |
617 : | Isibaar | 1795 | xor _EAX, _EAX |
618 : | edgomez | 1382 | ret |
619 : | Isibaar | 1793 | ENDFUNC |
620 : | edgomez | 1540 | |
621 : | Isibaar | 1877 | NON_EXEC_STACK |
No admin address has been configured | ViewVC Help |
Powered by ViewVC 1.0.4 |