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1 : | edgomez | 1176 | ;/***************************************************************************** |
2 : | edgomez | 1174 | ; * |
3 : | edgomez | 1176 | ; * XVID MPEG-4 VIDEO CODEC |
4 : | ; * - MPEG4 Quantization H263 implementation / MMX optimized - | ||
5 : | edgomez | 1174 | ; * |
6 : | edgomez | 1176 | ; * Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> |
7 : | ; * 2002-2003 Pascal Massimino <skal@planet-d.net> | ||
8 : | edgomez | 1174 | ; * |
9 : | edgomez | 1176 | ; * 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 : | edgomez | 1174 | ; * |
14 : | edgomez | 1176 | ; * 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 : | edgomez | 1174 | ; * |
19 : | edgomez | 1176 | ; * 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 : | edgomez | 1174 | ; * |
23 : | edgomez | 1198 | ; * $Id: quantize_h263_mmx.asm,v 1.1.2.4 2003-11-03 15:51:50 edgomez Exp $ |
24 : | edgomez | 1174 | ; * |
25 : | edgomez | 1176 | ; ****************************************************************************/ |
26 : | edgomez | 1174 | |
27 : | ; enable dequant saturate [-2048,2047], test purposes only. | ||
28 : | %define SATURATE | ||
29 : | |||
30 : | edgomez | 1192 | BITS 32 |
31 : | edgomez | 1174 | |
32 : | edgomez | 1192 | %macro cglobal 1 |
33 : | edgomez | 1176 | %ifdef PREFIX |
34 : | edgomez | 1192 | global _%1 |
35 : | edgomez | 1174 | %define %1 _%1 |
36 : | %else | ||
37 : | global %1 | ||
38 : | %endif | ||
39 : | %endmacro | ||
40 : | |||
41 : | edgomez | 1192 | ;============================================================================= |
42 : | ; Read only Local data | ||
43 : | ;============================================================================= | ||
44 : | edgomez | 1174 | |
45 : | edgomez | 1198 | %ifdef FORMAT_COFF |
46 : | SECTION .rodata data | ||
47 : | %else | ||
48 : | SECTION .rodata data align=16 | ||
49 : | %endif | ||
50 : | edgomez | 1174 | |
51 : | edgomez | 1192 | ALIGN 16 |
52 : | edgomez | 1176 | plus_one: |
53 : | times 8 dw 1 | ||
54 : | |||
55 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
56 : | edgomez | 1174 | ; |
57 : | ; subtract by Q/2 table | ||
58 : | ; | ||
59 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
60 : | edgomez | 1174 | |
61 : | edgomez | 1192 | ALIGN 16 |
62 : | edgomez | 1176 | mmx_sub: |
63 : | %assign quant 1 | ||
64 : | %rep 31 | ||
65 : | edgomez | 1192 | times 4 dw quant / 2 |
66 : | edgomez | 1176 | %assign quant quant+1 |
67 : | %endrep | ||
68 : | edgomez | 1174 | |
69 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
70 : | edgomez | 1174 | ; |
71 : | edgomez | 1192 | ; divide by 2Q table |
72 : | edgomez | 1174 | ; |
73 : | ; use a shift of 16 to take full advantage of _pmulhw_ | ||
74 : | ; for q=1, _pmulhw_ will overflow so it is treated seperately | ||
75 : | ; (3dnow2 provides _pmulhuw_ which wont cause overflow) | ||
76 : | ; | ||
77 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
78 : | edgomez | 1174 | |
79 : | edgomez | 1192 | ALIGN 16 |
80 : | edgomez | 1176 | mmx_div: |
81 : | %assign quant 1 | ||
82 : | %rep 31 | ||
83 : | times 4 dw (1<<16) / (quant*2) + 1 | ||
84 : | %assign quant quant+1 | ||
85 : | %endrep | ||
86 : | edgomez | 1174 | |
87 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
88 : | edgomez | 1174 | ; |
89 : | ; add by (odd(Q) ? Q : Q - 1) table | ||
90 : | ; | ||
91 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
92 : | edgomez | 1174 | |
93 : | edgomez | 1192 | ALIGN 16 |
94 : | edgomez | 1176 | mmx_add: |
95 : | %assign quant 1 | ||
96 : | %rep 31 | ||
97 : | %if quant % 2 != 0 | ||
98 : | times 4 dw quant | ||
99 : | %else | ||
100 : | times 4 dw quant - 1 | ||
101 : | %endif | ||
102 : | %assign quant quant+1 | ||
103 : | %endrep | ||
104 : | edgomez | 1174 | |
105 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
106 : | edgomez | 1174 | ; |
107 : | ; multiple by 2Q table | ||
108 : | ; | ||
109 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
110 : | edgomez | 1174 | |
111 : | edgomez | 1192 | ALIGN 16 |
112 : | edgomez | 1176 | mmx_mul: |
113 : | %assign quant 1 | ||
114 : | %rep 31 | ||
115 : | times 4 dw quant*2 | ||
116 : | %assign quant quant+1 | ||
117 : | %endrep | ||
118 : | edgomez | 1174 | |
119 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
120 : | edgomez | 1174 | ; |
121 : | edgomez | 1192 | ; saturation limits |
122 : | edgomez | 1174 | ; |
123 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
124 : | edgomez | 1174 | |
125 : | edgomez | 1192 | ALIGN 16 |
126 : | edgomez | 1176 | sse2_2047: |
127 : | times 8 dw 2047 | ||
128 : | edgomez | 1174 | |
129 : | edgomez | 1192 | ALIGN 16 |
130 : | edgomez | 1176 | mmx_2047: |
131 : | times 4 dw 2047 | ||
132 : | edgomez | 1174 | |
133 : | edgomez | 1192 | ALIGN 8 |
134 : | edgomez | 1176 | mmx_32768_minus_2048: |
135 : | times 4 dw (32768-2048) | ||
136 : | edgomez | 1174 | |
137 : | edgomez | 1176 | mmx_32767_minus_2047: |
138 : | times 4 dw (32767-2047) | ||
139 : | edgomez | 1174 | |
140 : | edgomez | 1176 | |
141 : | edgomez | 1192 | ;============================================================================= |
142 : | edgomez | 1176 | ; Code |
143 : | edgomez | 1192 | ;============================================================================= |
144 : | edgomez | 1176 | |
145 : | edgomez | 1192 | SECTION .text |
146 : | edgomez | 1174 | |
147 : | edgomez | 1192 | cglobal quant_h263_intra_mmx |
148 : | cglobal quant_h263_intra_sse2 | ||
149 : | cglobal quant_h263_inter_mmx | ||
150 : | cglobal quant_h263_inter_sse2 | ||
151 : | cglobal dequant_h263_intra_mmx | ||
152 : | cglobal dequant_h263_intra_xmm | ||
153 : | cglobal dequant_h263_intra_sse2 | ||
154 : | cglobal dequant_h263_inter_mmx | ||
155 : | cglobal dequant_h263_inter_xmm | ||
156 : | cglobal dequant_h263_inter_sse2 | ||
157 : | edgomez | 1174 | |
158 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
159 : | edgomez | 1174 | ; |
160 : | edgomez | 1176 | ; uint32_t quant_h263_intra_mmx(int16_t * coeff, |
161 : | ; const int16_t const * data, | ||
162 : | ; const uint32_t quant, | ||
163 : | ; const uint32_t dcscalar); | ||
164 : | edgomez | 1174 | ; |
165 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
166 : | edgomez | 1174 | |
167 : | edgomez | 1192 | ALIGN 16 |
168 : | edgomez | 1174 | quant_h263_intra_mmx: |
169 : | |||
170 : | edgomez | 1192 | push ecx |
171 : | push esi | ||
172 : | push edi | ||
173 : | edgomez | 1174 | |
174 : | edgomez | 1192 | mov edi, [esp + 12 + 4] ; coeff |
175 : | mov esi, [esp + 12 + 8] ; data | ||
176 : | mov eax, [esp + 12 + 12] ; quant | ||
177 : | edgomez | 1174 | |
178 : | edgomez | 1192 | xor ecx, ecx |
179 : | cmp al, 1 | ||
180 : | jz .q1loop | ||
181 : | edgomez | 1174 | |
182 : | edgomez | 1192 | movq mm7, [mmx_div + eax * 8 - 8] |
183 : | edgomez | 1176 | |
184 : | edgomez | 1192 | ALIGN 16 |
185 : | edgomez | 1174 | .loop |
186 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
187 : | movq mm3, [esi + 8*ecx + 8] | ||
188 : | pxor mm1, mm1 ; mm1 = 0 | ||
189 : | pxor mm4, mm4 ; | ||
190 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
191 : | pcmpgtw mm4, mm3 ; | ||
192 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
193 : | pxor mm3, mm4 ; | ||
194 : | psubw mm0, mm1 ; displace | ||
195 : | psubw mm3, mm4 ; | ||
196 : | pmulhw mm0, mm7 ; mm0 = (mm0 / 2Q) >> 16 | ||
197 : | pmulhw mm3, mm7 ; | ||
198 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
199 : | pxor mm3, mm4 ; | ||
200 : | psubw mm0, mm1 ; undisplace | ||
201 : | psubw mm3, mm4 ; | ||
202 : | movq [edi + 8*ecx], mm0 | ||
203 : | movq [edi + 8*ecx + 8], mm3 | ||
204 : | edgomez | 1174 | |
205 : | edgomez | 1192 | add ecx, 2 |
206 : | cmp ecx, 16 | ||
207 : | jnz .loop | ||
208 : | edgomez | 1176 | |
209 : | edgomez | 1192 | .done |
210 : | edgomez | 1176 | |
211 : | edgomez | 1192 | ; caclulate data[0] // (int32_t)dcscalar) |
212 : | mov ecx, [esp + 12 + 16] ; dcscalar | ||
213 : | mov edx, ecx | ||
214 : | movsx eax, word [esi] ; data[0] | ||
215 : | shr edx, 1 ; edx = dcscalar /2 | ||
216 : | cmp eax, 0 | ||
217 : | jg .gtzero | ||
218 : | edgomez | 1174 | |
219 : | edgomez | 1192 | sub eax, edx |
220 : | jmp short .mul | ||
221 : | edgomez | 1174 | |
222 : | .gtzero | ||
223 : | edgomez | 1192 | add eax, edx |
224 : | edgomez | 1174 | .mul |
225 : | edgomez | 1192 | cdq ; expand eax -> edx:eax |
226 : | idiv ecx ; eax = edx:eax / dcscalar | ||
227 : | mov [edi], ax ; coeff[0] = ax | ||
228 : | edgomez | 1174 | |
229 : | edgomez | 1192 | xor eax, eax ; return(0); |
230 : | pop edi | ||
231 : | pop esi | ||
232 : | pop ecx | ||
233 : | edgomez | 1174 | |
234 : | edgomez | 1192 | ret |
235 : | edgomez | 1174 | |
236 : | edgomez | 1192 | ALIGN 16 |
237 : | edgomez | 1174 | .q1loop |
238 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
239 : | movq mm3, [esi + 8*ecx + 8] | ||
240 : | pxor mm1, mm1 ; mm1 = 0 | ||
241 : | pxor mm4, mm4 ; | ||
242 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
243 : | pcmpgtw mm4, mm3 ; | ||
244 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
245 : | pxor mm3, mm4 ; | ||
246 : | psubw mm0, mm1 ; displace | ||
247 : | psubw mm3, mm4 ; | ||
248 : | psrlw mm0, 1 ; mm0 >>= 1 (/2) | ||
249 : | psrlw mm3, 1 ; | ||
250 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
251 : | pxor mm3, mm4 | ||
252 : | psubw mm0, mm1 ; undisplace | ||
253 : | psubw mm3, mm4 ; | ||
254 : | movq [edi + 8*ecx], mm0 | ||
255 : | movq [edi + 8*ecx + 8], mm3 | ||
256 : | edgomez | 1174 | |
257 : | edgomez | 1192 | add ecx, 2 |
258 : | cmp ecx, 16 | ||
259 : | jnz .q1loop | ||
260 : | jmp short .done | ||
261 : | edgomez | 1174 | |
262 : | |||
263 : | |||
264 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
265 : | edgomez | 1174 | ; |
266 : | edgomez | 1192 | ; uint32_t quant_h263_intra_sse2(int16_t * coeff, |
267 : | edgomez | 1176 | ; const int16_t const * data, |
268 : | ; const uint32_t quant, | ||
269 : | ; const uint32_t dcscalar); | ||
270 : | edgomez | 1174 | ; |
271 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
272 : | edgomez | 1174 | |
273 : | edgomez | 1192 | ALIGN 16 |
274 : | edgomez | 1174 | quant_h263_intra_sse2: |
275 : | |||
276 : | edgomez | 1192 | push esi |
277 : | push edi | ||
278 : | edgomez | 1174 | |
279 : | edgomez | 1192 | mov edi, [esp + 8 + 4] ; coeff |
280 : | mov esi, [esp + 8 + 8] ; data | ||
281 : | mov eax, [esp + 8 + 12] ; quant | ||
282 : | edgomez | 1174 | |
283 : | edgomez | 1192 | xor ecx, ecx |
284 : | cmp al, 1 | ||
285 : | jz near .qas2_q1loop | ||
286 : | edgomez | 1174 | |
287 : | .qas2_not1 | ||
288 : | edgomez | 1192 | movq mm7, [mmx_div + eax*8 - 8] |
289 : | movq2dq xmm7, mm7 | ||
290 : | movlhps xmm7, xmm7 | ||
291 : | edgomez | 1174 | |
292 : | edgomez | 1192 | ALIGN 16 |
293 : | edgomez | 1174 | .qas2_loop |
294 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
295 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
296 : | pxor xmm1, xmm1 | ||
297 : | pxor xmm4, xmm4 | ||
298 : | pcmpgtw xmm1, xmm0 | ||
299 : | pcmpgtw xmm4, xmm3 | ||
300 : | pxor xmm0, xmm1 | ||
301 : | pxor xmm3, xmm4 | ||
302 : | psubw xmm0, xmm1 | ||
303 : | psubw xmm3, xmm4 | ||
304 : | pmulhw xmm0, xmm7 | ||
305 : | pmulhw xmm3, xmm7 | ||
306 : | pxor xmm0, xmm1 | ||
307 : | pxor xmm3, xmm4 | ||
308 : | psubw xmm0, xmm1 | ||
309 : | psubw xmm3, xmm4 | ||
310 : | movdqa [edi + ecx*8], xmm0 | ||
311 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
312 : | edgomez | 1174 | |
313 : | edgomez | 1192 | add ecx, 4 |
314 : | cmp ecx, 16 | ||
315 : | jnz .qas2_loop | ||
316 : | edgomez | 1174 | |
317 : | edgomez | 1192 | .qas2_done |
318 : | mov ecx, [esp + 8 + 16] ; dcscalar | ||
319 : | mov edx, ecx | ||
320 : | movsx eax, word [esi] | ||
321 : | shr edx, 1 | ||
322 : | cmp eax, 0 | ||
323 : | jg .qas2_gtzero | ||
324 : | edgomez | 1176 | |
325 : | edgomez | 1192 | sub eax, edx |
326 : | jmp short .qas2_mul | ||
327 : | |||
328 : | edgomez | 1174 | .qas2_gtzero |
329 : | edgomez | 1192 | add eax, edx |
330 : | edgomez | 1176 | |
331 : | edgomez | 1174 | .qas2_mul |
332 : | edgomez | 1192 | cdq |
333 : | idiv ecx | ||
334 : | edgomez | 1174 | |
335 : | edgomez | 1192 | mov [edi], ax |
336 : | edgomez | 1174 | |
337 : | edgomez | 1192 | xor eax, eax ; return(0); |
338 : | pop edi | ||
339 : | pop esi | ||
340 : | edgomez | 1174 | |
341 : | edgomez | 1192 | ret |
342 : | |||
343 : | ALIGN 16 | ||
344 : | edgomez | 1174 | .qas2_q1loop |
345 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
346 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
347 : | pxor xmm1, xmm1 | ||
348 : | pxor xmm4, xmm4 | ||
349 : | pcmpgtw xmm1, xmm0 | ||
350 : | pcmpgtw xmm4, xmm3 | ||
351 : | pxor xmm0, xmm1 | ||
352 : | pxor xmm3, xmm4 | ||
353 : | psubw xmm0, xmm1 | ||
354 : | psubw xmm3, xmm4 | ||
355 : | psrlw xmm0, 1 | ||
356 : | psrlw xmm3, 1 | ||
357 : | pxor xmm0, xmm1 | ||
358 : | pxor xmm3, xmm4 | ||
359 : | psubw xmm0, xmm1 | ||
360 : | psubw xmm3, xmm4 | ||
361 : | movdqa [edi + ecx*8], xmm0 | ||
362 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
363 : | edgomez | 1174 | |
364 : | edgomez | 1192 | add ecx, 4 |
365 : | cmp ecx, 16 | ||
366 : | jnz .qas2_q1loop | ||
367 : | jmp near .qas2_done | ||
368 : | edgomez | 1174 | |
369 : | |||
370 : | |||
371 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
372 : | edgomez | 1174 | ; |
373 : | edgomez | 1176 | ; uint32_t quant_h263_inter_mmx(int16_t * coeff, |
374 : | ; const int16_t const * data, | ||
375 : | ; const uint32_t quant); | ||
376 : | edgomez | 1174 | ; |
377 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
378 : | edgomez | 1174 | |
379 : | edgomez | 1192 | ALIGN 16 |
380 : | edgomez | 1174 | quant_h263_inter_mmx: |
381 : | |||
382 : | edgomez | 1192 | push ecx |
383 : | push esi | ||
384 : | push edi | ||
385 : | edgomez | 1174 | |
386 : | edgomez | 1192 | mov edi, [esp + 12 + 4] ; coeff |
387 : | mov esi, [esp + 12 + 8] ; data | ||
388 : | mov eax, [esp + 12 + 12] ; quant | ||
389 : | edgomez | 1174 | |
390 : | edgomez | 1192 | xor ecx, ecx |
391 : | edgomez | 1174 | |
392 : | edgomez | 1192 | pxor mm5, mm5 ; sum |
393 : | movq mm6, [mmx_sub + eax * 8 - 8] ; sub | ||
394 : | edgomez | 1174 | |
395 : | edgomez | 1192 | cmp al, 1 |
396 : | jz .q1loop | ||
397 : | edgomez | 1174 | |
398 : | edgomez | 1192 | movq mm7, [mmx_div + eax * 8 - 8] ; divider |
399 : | edgomez | 1174 | |
400 : | edgomez | 1192 | ALIGN 8 |
401 : | edgomez | 1174 | .loop |
402 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
403 : | movq mm3, [esi + 8*ecx + 8] | ||
404 : | pxor mm1, mm1 ; mm1 = 0 | ||
405 : | pxor mm4, mm4 ; | ||
406 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
407 : | pcmpgtw mm4, mm3 ; | ||
408 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
409 : | pxor mm3, mm4 ; | ||
410 : | psubw mm0, mm1 ; displace | ||
411 : | psubw mm3, mm4 ; | ||
412 : | psubusw mm0, mm6 ; mm0 -= sub (unsigned, dont go < 0) | ||
413 : | psubusw mm3, mm6 ; | ||
414 : | pmulhw mm0, mm7 ; mm0 = (mm0 / 2Q) >> 16 | ||
415 : | pmulhw mm3, mm7 ; | ||
416 : | paddw mm5, mm0 ; sum += mm0 | ||
417 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
418 : | paddw mm5, mm3 ; | ||
419 : | pxor mm3, mm4 ; | ||
420 : | psubw mm0, mm1 ; undisplace | ||
421 : | psubw mm3, mm4 | ||
422 : | movq [edi + 8*ecx], mm0 | ||
423 : | movq [edi + 8*ecx + 8], mm3 | ||
424 : | edgomez | 1174 | |
425 : | edgomez | 1192 | add ecx, 2 |
426 : | cmp ecx, 16 | ||
427 : | jnz .loop | ||
428 : | edgomez | 1174 | |
429 : | .done | ||
430 : | edgomez | 1192 | pmaddwd mm5, [plus_one] |
431 : | movq mm0, mm5 | ||
432 : | psrlq mm5, 32 | ||
433 : | paddd mm0, mm5 | ||
434 : | edgomez | 1174 | |
435 : | edgomez | 1192 | movd eax, mm0 ; return sum |
436 : | pop edi | ||
437 : | pop esi | ||
438 : | pop ecx | ||
439 : | edgomez | 1174 | |
440 : | edgomez | 1192 | ret |
441 : | edgomez | 1174 | |
442 : | edgomez | 1192 | ALIGN 8 |
443 : | edgomez | 1174 | .q1loop |
444 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
445 : | movq mm3, [esi + 8*ecx+ 8] ; | ||
446 : | pxor mm1, mm1 ; mm1 = 0 | ||
447 : | pxor mm4, mm4 ; | ||
448 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
449 : | pcmpgtw mm4, mm3 ; | ||
450 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
451 : | pxor mm3, mm4 ; | ||
452 : | psubw mm0, mm1 ; displace | ||
453 : | psubw mm3, mm4 ; | ||
454 : | psubusw mm0, mm6 ; mm0 -= sub (unsigned, dont go < 0) | ||
455 : | psubusw mm3, mm6 ; | ||
456 : | psrlw mm0, 1 ; mm0 >>= 1 (/2) | ||
457 : | psrlw mm3, 1 ; | ||
458 : | paddw mm5, mm0 ; sum += mm0 | ||
459 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
460 : | paddw mm5, mm3 ; | ||
461 : | pxor mm3, mm4 ; | ||
462 : | psubw mm0, mm1 ; undisplace | ||
463 : | psubw mm3, mm4 | ||
464 : | movq [edi + 8*ecx], mm0 | ||
465 : | movq [edi + 8*ecx + 8], mm3 | ||
466 : | edgomez | 1174 | |
467 : | edgomez | 1192 | add ecx, 2 |
468 : | cmp ecx, 16 | ||
469 : | jnz .q1loop | ||
470 : | edgomez | 1174 | |
471 : | edgomez | 1192 | jmp .done |
472 : | edgomez | 1174 | |
473 : | |||
474 : | edgomez | 1192 | |
475 : | ;----------------------------------------------------------------------------- | ||
476 : | edgomez | 1174 | ; |
477 : | edgomez | 1176 | ; uint32_t quant_h263_inter_sse2(int16_t * coeff, |
478 : | ; const int16_t const * data, | ||
479 : | ; const uint32_t quant); | ||
480 : | edgomez | 1174 | ; |
481 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
482 : | edgomez | 1174 | |
483 : | edgomez | 1192 | ALIGN 16 |
484 : | edgomez | 1174 | quant_h263_inter_sse2: |
485 : | |||
486 : | edgomez | 1192 | push esi |
487 : | push edi | ||
488 : | edgomez | 1174 | |
489 : | edgomez | 1192 | mov edi, [esp + 8 + 4] ; coeff |
490 : | mov esi, [esp + 8 + 8] ; data | ||
491 : | mov eax, [esp + 8 + 12] ; quant | ||
492 : | edgomez | 1174 | |
493 : | edgomez | 1192 | xor ecx, ecx |
494 : | edgomez | 1174 | |
495 : | edgomez | 1192 | pxor xmm5, xmm5 ; sum |
496 : | edgomez | 1174 | |
497 : | edgomez | 1192 | movq mm0, [mmx_sub + eax*8 - 8] ; sub |
498 : | movq2dq xmm6, mm0 ; load into low 8 bytes | ||
499 : | movlhps xmm6, xmm6 ; duplicate into high 8 bytes | ||
500 : | edgomez | 1174 | |
501 : | edgomez | 1192 | cmp al, 1 |
502 : | jz near .qes2_q1loop | ||
503 : | edgomez | 1174 | |
504 : | .qes2_not1 | ||
505 : | edgomez | 1192 | movq mm0, [mmx_div + eax*8 - 8] ; divider |
506 : | movq2dq xmm7, mm0 | ||
507 : | movlhps xmm7, xmm7 | ||
508 : | edgomez | 1174 | |
509 : | edgomez | 1192 | ALIGN 16 |
510 : | edgomez | 1174 | .qes2_loop |
511 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
512 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
513 : | pxor xmm1, xmm1 | ||
514 : | pxor xmm4, xmm4 | ||
515 : | pcmpgtw xmm1, xmm0 | ||
516 : | pcmpgtw xmm4, xmm3 | ||
517 : | pxor xmm0, xmm1 | ||
518 : | pxor xmm3, xmm4 | ||
519 : | psubw xmm0, xmm1 | ||
520 : | psubw xmm3, xmm4 | ||
521 : | psubusw xmm0, xmm6 | ||
522 : | psubusw xmm3, xmm6 | ||
523 : | pmulhw xmm0, xmm7 | ||
524 : | pmulhw xmm3, xmm7 | ||
525 : | paddw xmm5, xmm0 | ||
526 : | pxor xmm0, xmm1 | ||
527 : | paddw xmm5, xmm3 | ||
528 : | pxor xmm3, xmm4 | ||
529 : | psubw xmm0, xmm1 | ||
530 : | psubw xmm3, xmm4 | ||
531 : | movdqa [edi + ecx*8], xmm0 | ||
532 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
533 : | edgomez | 1174 | |
534 : | edgomez | 1192 | add ecx, 4 |
535 : | cmp ecx, 16 | ||
536 : | jnz .qes2_loop | ||
537 : | edgomez | 1174 | |
538 : | .qes2_done | ||
539 : | edgomez | 1192 | movdqu xmm6, [plus_one] |
540 : | pmaddwd xmm5, xmm6 | ||
541 : | movhlps xmm6, xmm5 | ||
542 : | paddd xmm5, xmm6 | ||
543 : | movdq2q mm0, xmm5 | ||
544 : | edgomez | 1174 | |
545 : | edgomez | 1192 | movq mm5, mm0 |
546 : | psrlq mm5, 32 | ||
547 : | paddd mm0, mm5 | ||
548 : | edgomez | 1174 | |
549 : | edgomez | 1192 | movd eax, mm0 ; return sum |
550 : | edgomez | 1174 | |
551 : | edgomez | 1192 | pop edi |
552 : | pop esi | ||
553 : | edgomez | 1174 | |
554 : | edgomez | 1192 | ret |
555 : | edgomez | 1176 | |
556 : | edgomez | 1192 | ALIGN 16 |
557 : | edgomez | 1174 | .qes2_q1loop |
558 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
559 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
560 : | pxor xmm1, xmm1 | ||
561 : | pxor xmm4, xmm4 | ||
562 : | pcmpgtw xmm1, xmm0 | ||
563 : | pcmpgtw xmm4, xmm3 | ||
564 : | pxor xmm0, xmm1 | ||
565 : | pxor xmm3, xmm4 | ||
566 : | psubw xmm0, xmm1 | ||
567 : | psubw xmm3, xmm4 | ||
568 : | psubusw xmm0, xmm6 | ||
569 : | psubusw xmm3, xmm6 | ||
570 : | psrlw xmm0, 1 | ||
571 : | psrlw xmm3, 1 | ||
572 : | paddw xmm5, xmm0 | ||
573 : | pxor xmm0, xmm1 | ||
574 : | paddw xmm5, xmm3 | ||
575 : | pxor xmm3, xmm4 | ||
576 : | psubw xmm0, xmm1 | ||
577 : | psubw xmm3, xmm4 | ||
578 : | movdqa [edi + ecx*8], xmm0 | ||
579 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
580 : | |||
581 : | add ecx, 4 | ||
582 : | cmp ecx, 16 | ||
583 : | jnz .qes2_q1loop | ||
584 : | jmp .qes2_done | ||
585 : | |||
586 : | |||
587 : | ;----------------------------------------------------------------------------- | ||
588 : | edgomez | 1174 | ; |
589 : | edgomez | 1176 | ; uint32_t dequant_h263_intra_mmx(int16_t *data, |
590 : | ; const int16_t const *coeff, | ||
591 : | ; const uint32_t quant, | ||
592 : | ; const uint32_t dcscalar); | ||
593 : | edgomez | 1174 | ; |
594 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
595 : | edgomez | 1174 | |
596 : | ; note: we only saturate to +2047 *before* restoring the sign. | ||
597 : | ; Hence, final clamp really is [-2048,2047] | ||
598 : | |||
599 : | edgomez | 1192 | ALIGN 16 |
600 : | edgomez | 1174 | dequant_h263_intra_mmx: |
601 : | |||
602 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
603 : | mov ecx, [esp+ 8] ; coeff | ||
604 : | mov eax, [esp+12] ; quant | ||
605 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
606 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
607 : | mov eax, -16 | ||
608 : | edgomez | 1174 | |
609 : | edgomez | 1192 | ALIGN 16 |
610 : | edgomez | 1174 | .loop |
611 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
612 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
613 : | pxor mm1, mm1 | ||
614 : | pxor mm4, mm4 | ||
615 : | pcmpgtw mm1, mm0 ; sign(c) | ||
616 : | pcmpgtw mm4, mm3 ; sign(c') | ||
617 : | pxor mm2, mm2 | ||
618 : | pxor mm5, mm5 | ||
619 : | pcmpeqw mm2, mm0 ; c is zero | ||
620 : | pcmpeqw mm5, mm3 ; c' is zero | ||
621 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
622 : | pandn mm5, mm6 | ||
623 : | pxor mm0, mm1 ; negate if negative | ||
624 : | pxor mm3, mm4 ; negate if negative | ||
625 : | psubw mm0, mm1 | ||
626 : | psubw mm3, mm4 | ||
627 : | pmullw mm0, mm7 ; *= 2Q | ||
628 : | pmullw mm3, mm7 ; *= 2Q | ||
629 : | paddw mm0, mm2 ; + offset | ||
630 : | paddw mm3, mm5 ; + offset | ||
631 : | paddw mm0, mm1 ; negate back | ||
632 : | paddw mm3, mm4 ; negate back | ||
633 : | edgomez | 1174 | |
634 : | edgomez | 1192 | ; saturates to +2047 |
635 : | movq mm2, [mmx_32767_minus_2047] | ||
636 : | add eax, 2 | ||
637 : | paddsw mm0, mm2 | ||
638 : | paddsw mm3, mm2 | ||
639 : | psubsw mm0, mm2 | ||
640 : | psubsw mm3, mm2 | ||
641 : | edgomez | 1174 | |
642 : | edgomez | 1192 | pxor mm0, mm1 |
643 : | pxor mm3, mm4 | ||
644 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
645 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
646 : | jnz near .loop | ||
647 : | edgomez | 1174 | |
648 : | edgomez | 1192 | ; deal with DC |
649 : | movd mm0, [ecx] | ||
650 : | pmullw mm0, [esp+16] ; dcscalar | ||
651 : | movq mm2, [mmx_32767_minus_2047] | ||
652 : | paddsw mm0, mm2 | ||
653 : | psubsw mm0, mm2 | ||
654 : | movq mm3, [mmx_32768_minus_2048] | ||
655 : | psubsw mm0, mm3 | ||
656 : | paddsw mm0, mm3 | ||
657 : | movd eax, mm0 | ||
658 : | mov [edx], ax | ||
659 : | edgomez | 1174 | |
660 : | edgomez | 1192 | xor eax, eax ; return(0); |
661 : | ret | ||
662 : | edgomez | 1174 | |
663 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
664 : | edgomez | 1174 | ; |
665 : | edgomez | 1176 | ; uint32_t dequant_h263_intra_xmm(int16_t *data, |
666 : | ; const int16_t const *coeff, | ||
667 : | ; const uint32_t quant, | ||
668 : | ; const uint32_t dcscalar); | ||
669 : | edgomez | 1174 | ; |
670 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
671 : | edgomez | 1174 | |
672 : | ; this is the same as dequant_inter_mmx, except that we're | ||
673 : | ; saturating using 'pminsw' (saves 2 cycles/loop => ~5% faster) | ||
674 : | |||
675 : | edgomez | 1192 | ALIGN 16 |
676 : | edgomez | 1174 | dequant_h263_intra_xmm: |
677 : | |||
678 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
679 : | mov ecx, [esp+ 8] ; coeff | ||
680 : | mov eax, [esp+12] ; quant | ||
681 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
682 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
683 : | mov eax, -16 | ||
684 : | edgomez | 1174 | |
685 : | edgomez | 1192 | ALIGN 16 |
686 : | edgomez | 1174 | .loop |
687 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
688 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
689 : | pxor mm1, mm1 | ||
690 : | pxor mm4, mm4 | ||
691 : | pcmpgtw mm1, mm0 ; sign(c) | ||
692 : | pcmpgtw mm4, mm3 ; sign(c') | ||
693 : | pxor mm2, mm2 | ||
694 : | pxor mm5, mm5 | ||
695 : | pcmpeqw mm2, mm0 ; c is zero | ||
696 : | pcmpeqw mm5, mm3 ; c' is zero | ||
697 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
698 : | pandn mm5, mm6 | ||
699 : | pxor mm0, mm1 ; negate if negative | ||
700 : | pxor mm3, mm4 ; negate if negative | ||
701 : | psubw mm0, mm1 | ||
702 : | psubw mm3, mm4 | ||
703 : | pmullw mm0, mm7 ; *= 2Q | ||
704 : | pmullw mm3, mm7 ; *= 2Q | ||
705 : | paddw mm0, mm2 ; + offset | ||
706 : | paddw mm3, mm5 ; + offset | ||
707 : | paddw mm0, mm1 ; negate back | ||
708 : | paddw mm3, mm4 ; negate back | ||
709 : | edgomez | 1174 | |
710 : | edgomez | 1176 | ; saturates to +2047 |
711 : | edgomez | 1192 | movq mm2, [mmx_2047] |
712 : | pminsw mm0, mm2 | ||
713 : | add eax, 2 | ||
714 : | pminsw mm3, mm2 | ||
715 : | edgomez | 1174 | |
716 : | edgomez | 1192 | pxor mm0, mm1 |
717 : | pxor mm3, mm4 | ||
718 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
719 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
720 : | jnz near .loop | ||
721 : | edgomez | 1174 | |
722 : | ; deal with DC | ||
723 : | edgomez | 1192 | movd mm0, [ecx] |
724 : | pmullw mm0, [esp+16] ; dcscalar | ||
725 : | movq mm2, [mmx_32767_minus_2047] | ||
726 : | paddsw mm0, mm2 | ||
727 : | psubsw mm0, mm2 | ||
728 : | movq mm2, [mmx_32768_minus_2048] | ||
729 : | psubsw mm0, mm2 | ||
730 : | paddsw mm0, mm2 | ||
731 : | movd eax, mm0 | ||
732 : | mov [edx], ax | ||
733 : | edgomez | 1174 | |
734 : | edgomez | 1192 | xor eax, eax |
735 : | ret | ||
736 : | edgomez | 1174 | |
737 : | |||
738 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
739 : | edgomez | 1174 | ; |
740 : | edgomez | 1176 | ; uint32_t dequant_h263_intra_sse2(int16_t *data, |
741 : | ; const int16_t const *coeff, | ||
742 : | ; const uint32_t quant, | ||
743 : | ; const uint32_t dcscalar); | ||
744 : | edgomez | 1174 | ; |
745 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
746 : | edgomez | 1176 | |
747 : | edgomez | 1192 | ALIGN 16 |
748 : | edgomez | 1174 | dequant_h263_intra_sse2: |
749 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
750 : | mov ecx, [esp+ 8] ; coeff | ||
751 : | mov eax, [esp+12] ; quant | ||
752 : | movq mm6, [mmx_add + eax * 8 - 8] | ||
753 : | movq mm7, [mmx_mul + eax * 8 - 8] | ||
754 : | movq2dq xmm6, mm6 | ||
755 : | movq2dq xmm7, mm7 | ||
756 : | movlhps xmm6, xmm6 | ||
757 : | movlhps xmm7, xmm7 | ||
758 : | mov eax, -16 | ||
759 : | edgomez | 1174 | |
760 : | edgomez | 1192 | ALIGN 16 |
761 : | edgomez | 1174 | .loop |
762 : | edgomez | 1192 | movdqa xmm0, [ecx + 8*16 + 8*eax] ; c = coeff[i] |
763 : | movdqa xmm3, [ecx + 8*16 + 8*eax+ 16] | ||
764 : | pxor xmm1, xmm1 | ||
765 : | pxor xmm4, xmm4 | ||
766 : | pcmpgtw xmm1, xmm0 ; sign(c) | ||
767 : | pcmpgtw xmm4, xmm3 | ||
768 : | pxor xmm2, xmm2 | ||
769 : | pxor xmm5, xmm5 | ||
770 : | pcmpeqw xmm2, xmm0 ; c is zero | ||
771 : | pcmpeqw xmm5, xmm3 | ||
772 : | pandn xmm2, xmm6 ; offset = isZero ? 0 : quant_add | ||
773 : | pandn xmm5, xmm6 | ||
774 : | pxor xmm0, xmm1 ; negate if negative | ||
775 : | pxor xmm3, xmm4 | ||
776 : | psubw xmm0, xmm1 | ||
777 : | psubw xmm3, xmm4 | ||
778 : | pmullw xmm0, xmm7 ; *= 2Q | ||
779 : | pmullw xmm3, xmm7 | ||
780 : | paddw xmm0, xmm2 ; + offset | ||
781 : | paddw xmm3, xmm5 | ||
782 : | paddw xmm0, xmm1 ; negate back | ||
783 : | paddw xmm3, xmm4 | ||
784 : | edgomez | 1174 | |
785 : | edgomez | 1192 | ; saturates to +2047 |
786 : | movdqa xmm2, [sse2_2047] | ||
787 : | pminsw xmm0, xmm2 | ||
788 : | add eax, 4 | ||
789 : | pminsw xmm3, xmm2 | ||
790 : | edgomez | 1174 | |
791 : | edgomez | 1192 | pxor xmm0, xmm1 |
792 : | pxor xmm3, xmm4 | ||
793 : | movdqa [edx + 8*16 - 8*4 + 8*eax], xmm0 | ||
794 : | movdqa [edx + 8*16 - 8*4 + 8*eax + 16], xmm3 | ||
795 : | jnz near .loop | ||
796 : | edgomez | 1174 | |
797 : | edgomez | 1192 | ; deal with DC |
798 : | movd mm0, [ecx] | ||
799 : | pmullw mm0, [esp+16] ; dcscalar | ||
800 : | movq mm2, [mmx_32767_minus_2047] | ||
801 : | paddsw mm0, mm2 | ||
802 : | psubsw mm0, mm2 | ||
803 : | movq mm2, [mmx_32768_minus_2048] | ||
804 : | psubsw mm0, mm2 | ||
805 : | paddsw mm0, mm2 | ||
806 : | movd eax, mm0 | ||
807 : | mov [edx], ax | ||
808 : | edgomez | 1174 | |
809 : | edgomez | 1192 | xor eax, eax |
810 : | ret | ||
811 : | edgomez | 1174 | |
812 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
813 : | edgomez | 1174 | ; |
814 : | edgomez | 1176 | ; uint32t dequant_h263_inter_mmx(int16_t * data, |
815 : | ; const int16_t * const coeff, | ||
816 : | ; const uint32_t quant); | ||
817 : | edgomez | 1174 | ; |
818 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
819 : | edgomez | 1174 | |
820 : | edgomez | 1192 | ALIGN 16 |
821 : | edgomez | 1174 | dequant_h263_inter_mmx: |
822 : | |||
823 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
824 : | mov ecx, [esp+ 8] ; coeff | ||
825 : | mov eax, [esp+12] ; quant | ||
826 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
827 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
828 : | mov eax, -16 | ||
829 : | edgomez | 1174 | |
830 : | edgomez | 1192 | ALIGN 16 |
831 : | edgomez | 1174 | .loop |
832 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
833 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
834 : | pxor mm1, mm1 | ||
835 : | pxor mm4, mm4 | ||
836 : | pcmpgtw mm1, mm0 ; sign(c) | ||
837 : | pcmpgtw mm4, mm3 ; sign(c') | ||
838 : | pxor mm2, mm2 | ||
839 : | pxor mm5, mm5 | ||
840 : | pcmpeqw mm2, mm0 ; c is zero | ||
841 : | pcmpeqw mm5, mm3 ; c' is zero | ||
842 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
843 : | pandn mm5, mm6 | ||
844 : | pxor mm0, mm1 ; negate if negative | ||
845 : | pxor mm3, mm4 ; negate if negative | ||
846 : | psubw mm0, mm1 | ||
847 : | psubw mm3, mm4 | ||
848 : | pmullw mm0, mm7 ; *= 2Q | ||
849 : | pmullw mm3, mm7 ; *= 2Q | ||
850 : | paddw mm0, mm2 ; + offset | ||
851 : | paddw mm3, mm5 ; + offset | ||
852 : | paddw mm0, mm1 ; negate back | ||
853 : | paddw mm3, mm4 ; negate back | ||
854 : | ; saturates to +2047 | ||
855 : | movq mm2, [mmx_32767_minus_2047] | ||
856 : | add eax, 2 | ||
857 : | paddsw mm0, mm2 | ||
858 : | paddsw mm3, mm2 | ||
859 : | psubsw mm0, mm2 | ||
860 : | psubsw mm3, mm2 | ||
861 : | edgomez | 1174 | |
862 : | edgomez | 1192 | pxor mm0, mm1 |
863 : | pxor mm3, mm4 | ||
864 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
865 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
866 : | jnz near .loop | ||
867 : | edgomez | 1174 | |
868 : | edgomez | 1192 | xor eax, eax |
869 : | ret | ||
870 : | edgomez | 1174 | |
871 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
872 : | edgomez | 1174 | ; |
873 : | edgomez | 1176 | ; uint32_t dequant_h263_inter_xmm(int16_t * data, |
874 : | ; const int16_t * const coeff, | ||
875 : | ; const uint32_t quant); | ||
876 : | edgomez | 1174 | ; |
877 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
878 : | edgomez | 1174 | |
879 : | ; this is the same as dequant_inter_mmx, | ||
880 : | ; except that we're saturating using 'pminsw' (saves 2 cycles/loop) | ||
881 : | |||
882 : | edgomez | 1192 | ALIGN 16 |
883 : | edgomez | 1174 | dequant_h263_inter_xmm: |
884 : | |||
885 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
886 : | mov ecx, [esp+ 8] ; coeff | ||
887 : | mov eax, [esp+12] ; quant | ||
888 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
889 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
890 : | mov eax, -16 | ||
891 : | edgomez | 1174 | |
892 : | edgomez | 1192 | ALIGN 16 |
893 : | edgomez | 1174 | .loop |
894 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
895 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
896 : | pxor mm1, mm1 | ||
897 : | pxor mm4, mm4 | ||
898 : | pcmpgtw mm1, mm0 ; sign(c) | ||
899 : | pcmpgtw mm4, mm3 ; sign(c') | ||
900 : | pxor mm2, mm2 | ||
901 : | pxor mm5, mm5 | ||
902 : | pcmpeqw mm2, mm0 ; c is zero | ||
903 : | pcmpeqw mm5, mm3 ; c' is zero | ||
904 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
905 : | pandn mm5, mm6 | ||
906 : | pxor mm0, mm1 ; negate if negative | ||
907 : | pxor mm3, mm4 ; negate if negative | ||
908 : | psubw mm0, mm1 | ||
909 : | psubw mm3, mm4 | ||
910 : | pmullw mm0, mm7 ; *= 2Q | ||
911 : | pmullw mm3, mm7 ; *= 2Q | ||
912 : | paddw mm0, mm2 ; + offset | ||
913 : | paddw mm3, mm5 ; + offset | ||
914 : | paddw mm0, mm1 ; start restoring sign | ||
915 : | paddw mm3, mm4 ; start restoring sign | ||
916 : | ; saturates to +2047 | ||
917 : | movq mm2, [mmx_2047] | ||
918 : | pminsw mm0, mm2 | ||
919 : | add eax, 2 | ||
920 : | pminsw mm3, mm2 | ||
921 : | edgomez | 1174 | |
922 : | edgomez | 1192 | pxor mm0, mm1 ; finish restoring sign |
923 : | pxor mm3, mm4 ; finish restoring sign | ||
924 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
925 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
926 : | jnz near .loop | ||
927 : | edgomez | 1174 | |
928 : | edgomez | 1192 | xor eax, eax |
929 : | ret | ||
930 : | edgomez | 1174 | |
931 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
932 : | edgomez | 1174 | ; |
933 : | edgomez | 1176 | ; uint32_t dequant_h263_inter_sse2(int16_t * data, |
934 : | ; const int16_t * const coeff, | ||
935 : | ; const uint32_t quant); | ||
936 : | edgomez | 1174 | ; |
937 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
938 : | |||
939 : | ALIGN 16 | ||
940 : | edgomez | 1174 | dequant_h263_inter_sse2: |
941 : | edgomez | 1192 | mov edx, [esp + 4] ; data |
942 : | mov ecx, [esp + 8] ; coeff | ||
943 : | mov eax, [esp + 12] ; quant | ||
944 : | movq mm6, [mmx_add + eax * 8 - 8] | ||
945 : | movq mm7, [mmx_mul + eax * 8 - 8] | ||
946 : | movq2dq xmm6, mm6 | ||
947 : | movq2dq xmm7, mm7 | ||
948 : | movlhps xmm6, xmm6 | ||
949 : | movlhps xmm7, xmm7 | ||
950 : | mov eax, -16 | ||
951 : | edgomez | 1174 | |
952 : | edgomez | 1192 | ALIGN 16 |
953 : | edgomez | 1174 | .loop |
954 : | edgomez | 1192 | movdqa xmm0, [ecx + 8*16 + 8*eax] ; c = coeff[i] |
955 : | movdqa xmm3, [ecx + 8*16 + 8*eax + 16] | ||
956 : | edgomez | 1174 | |
957 : | edgomez | 1192 | pxor xmm1, xmm1 |
958 : | pxor xmm4, xmm4 | ||
959 : | pcmpgtw xmm1, xmm0 ; sign(c) | ||
960 : | pcmpgtw xmm4, xmm3 | ||
961 : | pxor xmm2, xmm2 | ||
962 : | pxor xmm5, xmm5 | ||
963 : | pcmpeqw xmm2, xmm0 ; c is zero | ||
964 : | pcmpeqw xmm5, xmm3 | ||
965 : | pandn xmm2, xmm6 | ||
966 : | pandn xmm5, xmm6 | ||
967 : | pxor xmm0, xmm1 ; negate if negative | ||
968 : | pxor xmm3, xmm4 | ||
969 : | psubw xmm0, xmm1 | ||
970 : | psubw xmm3, xmm4 | ||
971 : | pmullw xmm0, xmm7 ; *= 2Q | ||
972 : | pmullw xmm3, xmm7 | ||
973 : | paddw xmm0, xmm2 ; + offset | ||
974 : | paddw xmm3, xmm5 | ||
975 : | edgomez | 1174 | |
976 : | edgomez | 1192 | paddw xmm0, xmm1 ; start restoring sign |
977 : | paddw xmm3, xmm4 | ||
978 : | edgomez | 1174 | |
979 : | edgomez | 1192 | ; saturates to +2047 |
980 : | movdqa xmm2, [sse2_2047] | ||
981 : | pminsw xmm0, xmm2 | ||
982 : | add eax, 4 | ||
983 : | pminsw xmm3, xmm2 | ||
984 : | edgomez | 1174 | |
985 : | edgomez | 1192 | pxor xmm0, xmm1 ; finish restoring sign |
986 : | pxor xmm3, xmm4 | ||
987 : | movdqa [edx + 8*16 - 8*4 + 8*eax], xmm0 | ||
988 : | movdqa [edx + 8*16 - 8*4 + 8*eax + 16], xmm3 | ||
989 : | jnz near .loop | ||
990 : | edgomez | 1174 | |
991 : | edgomez | 1192 | xor eax, eax |
992 : | ret |
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