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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 | 1192 | ; * $Id: quantize_h263_mmx.asm,v 1.1.2.3 2003-10-28 22:23:03 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 | 1192 | SECTION .rodata |
46 : | edgomez | 1174 | |
47 : | edgomez | 1192 | ALIGN 16 |
48 : | edgomez | 1176 | plus_one: |
49 : | times 8 dw 1 | ||
50 : | |||
51 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
52 : | edgomez | 1174 | ; |
53 : | ; subtract by Q/2 table | ||
54 : | ; | ||
55 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
56 : | edgomez | 1174 | |
57 : | edgomez | 1192 | ALIGN 16 |
58 : | edgomez | 1176 | mmx_sub: |
59 : | %assign quant 1 | ||
60 : | %rep 31 | ||
61 : | edgomez | 1192 | times 4 dw quant / 2 |
62 : | edgomez | 1176 | %assign quant quant+1 |
63 : | %endrep | ||
64 : | edgomez | 1174 | |
65 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
66 : | edgomez | 1174 | ; |
67 : | edgomez | 1192 | ; divide by 2Q table |
68 : | edgomez | 1174 | ; |
69 : | ; use a shift of 16 to take full advantage of _pmulhw_ | ||
70 : | ; for q=1, _pmulhw_ will overflow so it is treated seperately | ||
71 : | ; (3dnow2 provides _pmulhuw_ which wont cause overflow) | ||
72 : | ; | ||
73 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
74 : | edgomez | 1174 | |
75 : | edgomez | 1192 | ALIGN 16 |
76 : | edgomez | 1176 | mmx_div: |
77 : | %assign quant 1 | ||
78 : | %rep 31 | ||
79 : | times 4 dw (1<<16) / (quant*2) + 1 | ||
80 : | %assign quant quant+1 | ||
81 : | %endrep | ||
82 : | edgomez | 1174 | |
83 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
84 : | edgomez | 1174 | ; |
85 : | ; add by (odd(Q) ? Q : Q - 1) table | ||
86 : | ; | ||
87 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
88 : | edgomez | 1174 | |
89 : | edgomez | 1192 | ALIGN 16 |
90 : | edgomez | 1176 | mmx_add: |
91 : | %assign quant 1 | ||
92 : | %rep 31 | ||
93 : | %if quant % 2 != 0 | ||
94 : | times 4 dw quant | ||
95 : | %else | ||
96 : | times 4 dw quant - 1 | ||
97 : | %endif | ||
98 : | %assign quant quant+1 | ||
99 : | %endrep | ||
100 : | edgomez | 1174 | |
101 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
102 : | edgomez | 1174 | ; |
103 : | ; multiple by 2Q table | ||
104 : | ; | ||
105 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
106 : | edgomez | 1174 | |
107 : | edgomez | 1192 | ALIGN 16 |
108 : | edgomez | 1176 | mmx_mul: |
109 : | %assign quant 1 | ||
110 : | %rep 31 | ||
111 : | times 4 dw quant*2 | ||
112 : | %assign quant quant+1 | ||
113 : | %endrep | ||
114 : | edgomez | 1174 | |
115 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
116 : | edgomez | 1174 | ; |
117 : | edgomez | 1192 | ; saturation limits |
118 : | edgomez | 1174 | ; |
119 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
120 : | edgomez | 1174 | |
121 : | edgomez | 1192 | ALIGN 16 |
122 : | edgomez | 1176 | sse2_2047: |
123 : | times 8 dw 2047 | ||
124 : | edgomez | 1174 | |
125 : | edgomez | 1192 | ALIGN 16 |
126 : | edgomez | 1176 | mmx_2047: |
127 : | times 4 dw 2047 | ||
128 : | edgomez | 1174 | |
129 : | edgomez | 1192 | ALIGN 8 |
130 : | edgomez | 1176 | mmx_32768_minus_2048: |
131 : | times 4 dw (32768-2048) | ||
132 : | edgomez | 1174 | |
133 : | edgomez | 1176 | mmx_32767_minus_2047: |
134 : | times 4 dw (32767-2047) | ||
135 : | edgomez | 1174 | |
136 : | edgomez | 1176 | |
137 : | edgomez | 1192 | ;============================================================================= |
138 : | edgomez | 1176 | ; Code |
139 : | edgomez | 1192 | ;============================================================================= |
140 : | edgomez | 1176 | |
141 : | edgomez | 1192 | SECTION .text |
142 : | edgomez | 1174 | |
143 : | edgomez | 1192 | cglobal quant_h263_intra_mmx |
144 : | cglobal quant_h263_intra_sse2 | ||
145 : | cglobal quant_h263_inter_mmx | ||
146 : | cglobal quant_h263_inter_sse2 | ||
147 : | cglobal dequant_h263_intra_mmx | ||
148 : | cglobal dequant_h263_intra_xmm | ||
149 : | cglobal dequant_h263_intra_sse2 | ||
150 : | cglobal dequant_h263_inter_mmx | ||
151 : | cglobal dequant_h263_inter_xmm | ||
152 : | cglobal dequant_h263_inter_sse2 | ||
153 : | edgomez | 1174 | |
154 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
155 : | edgomez | 1174 | ; |
156 : | edgomez | 1176 | ; uint32_t quant_h263_intra_mmx(int16_t * coeff, |
157 : | ; const int16_t const * data, | ||
158 : | ; const uint32_t quant, | ||
159 : | ; const uint32_t dcscalar); | ||
160 : | edgomez | 1174 | ; |
161 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
162 : | edgomez | 1174 | |
163 : | edgomez | 1192 | ALIGN 16 |
164 : | edgomez | 1174 | quant_h263_intra_mmx: |
165 : | |||
166 : | edgomez | 1192 | push ecx |
167 : | push esi | ||
168 : | push edi | ||
169 : | edgomez | 1174 | |
170 : | edgomez | 1192 | mov edi, [esp + 12 + 4] ; coeff |
171 : | mov esi, [esp + 12 + 8] ; data | ||
172 : | mov eax, [esp + 12 + 12] ; quant | ||
173 : | edgomez | 1174 | |
174 : | edgomez | 1192 | xor ecx, ecx |
175 : | cmp al, 1 | ||
176 : | jz .q1loop | ||
177 : | edgomez | 1174 | |
178 : | edgomez | 1192 | movq mm7, [mmx_div + eax * 8 - 8] |
179 : | edgomez | 1176 | |
180 : | edgomez | 1192 | ALIGN 16 |
181 : | edgomez | 1174 | .loop |
182 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
183 : | movq mm3, [esi + 8*ecx + 8] | ||
184 : | pxor mm1, mm1 ; mm1 = 0 | ||
185 : | pxor mm4, mm4 ; | ||
186 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
187 : | pcmpgtw mm4, mm3 ; | ||
188 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
189 : | pxor mm3, mm4 ; | ||
190 : | psubw mm0, mm1 ; displace | ||
191 : | psubw mm3, mm4 ; | ||
192 : | pmulhw mm0, mm7 ; mm0 = (mm0 / 2Q) >> 16 | ||
193 : | pmulhw mm3, mm7 ; | ||
194 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
195 : | pxor mm3, mm4 ; | ||
196 : | psubw mm0, mm1 ; undisplace | ||
197 : | psubw mm3, mm4 ; | ||
198 : | movq [edi + 8*ecx], mm0 | ||
199 : | movq [edi + 8*ecx + 8], mm3 | ||
200 : | edgomez | 1174 | |
201 : | edgomez | 1192 | add ecx, 2 |
202 : | cmp ecx, 16 | ||
203 : | jnz .loop | ||
204 : | edgomez | 1176 | |
205 : | edgomez | 1192 | .done |
206 : | edgomez | 1176 | |
207 : | edgomez | 1192 | ; caclulate data[0] // (int32_t)dcscalar) |
208 : | mov ecx, [esp + 12 + 16] ; dcscalar | ||
209 : | mov edx, ecx | ||
210 : | movsx eax, word [esi] ; data[0] | ||
211 : | shr edx, 1 ; edx = dcscalar /2 | ||
212 : | cmp eax, 0 | ||
213 : | jg .gtzero | ||
214 : | edgomez | 1174 | |
215 : | edgomez | 1192 | sub eax, edx |
216 : | jmp short .mul | ||
217 : | edgomez | 1174 | |
218 : | .gtzero | ||
219 : | edgomez | 1192 | add eax, edx |
220 : | edgomez | 1174 | .mul |
221 : | edgomez | 1192 | cdq ; expand eax -> edx:eax |
222 : | idiv ecx ; eax = edx:eax / dcscalar | ||
223 : | mov [edi], ax ; coeff[0] = ax | ||
224 : | edgomez | 1174 | |
225 : | edgomez | 1192 | xor eax, eax ; return(0); |
226 : | pop edi | ||
227 : | pop esi | ||
228 : | pop ecx | ||
229 : | edgomez | 1174 | |
230 : | edgomez | 1192 | ret |
231 : | edgomez | 1174 | |
232 : | edgomez | 1192 | ALIGN 16 |
233 : | edgomez | 1174 | .q1loop |
234 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
235 : | movq mm3, [esi + 8*ecx + 8] | ||
236 : | pxor mm1, mm1 ; mm1 = 0 | ||
237 : | pxor mm4, mm4 ; | ||
238 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
239 : | pcmpgtw mm4, mm3 ; | ||
240 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
241 : | pxor mm3, mm4 ; | ||
242 : | psubw mm0, mm1 ; displace | ||
243 : | psubw mm3, mm4 ; | ||
244 : | psrlw mm0, 1 ; mm0 >>= 1 (/2) | ||
245 : | psrlw mm3, 1 ; | ||
246 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
247 : | pxor mm3, mm4 | ||
248 : | psubw mm0, mm1 ; undisplace | ||
249 : | psubw mm3, mm4 ; | ||
250 : | movq [edi + 8*ecx], mm0 | ||
251 : | movq [edi + 8*ecx + 8], mm3 | ||
252 : | edgomez | 1174 | |
253 : | edgomez | 1192 | add ecx, 2 |
254 : | cmp ecx, 16 | ||
255 : | jnz .q1loop | ||
256 : | jmp short .done | ||
257 : | edgomez | 1174 | |
258 : | |||
259 : | |||
260 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
261 : | edgomez | 1174 | ; |
262 : | edgomez | 1192 | ; uint32_t quant_h263_intra_sse2(int16_t * coeff, |
263 : | edgomez | 1176 | ; const int16_t const * data, |
264 : | ; const uint32_t quant, | ||
265 : | ; const uint32_t dcscalar); | ||
266 : | edgomez | 1174 | ; |
267 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
268 : | edgomez | 1174 | |
269 : | edgomez | 1192 | ALIGN 16 |
270 : | edgomez | 1174 | quant_h263_intra_sse2: |
271 : | |||
272 : | edgomez | 1192 | push esi |
273 : | push edi | ||
274 : | edgomez | 1174 | |
275 : | edgomez | 1192 | mov edi, [esp + 8 + 4] ; coeff |
276 : | mov esi, [esp + 8 + 8] ; data | ||
277 : | mov eax, [esp + 8 + 12] ; quant | ||
278 : | edgomez | 1174 | |
279 : | edgomez | 1192 | xor ecx, ecx |
280 : | cmp al, 1 | ||
281 : | jz near .qas2_q1loop | ||
282 : | edgomez | 1174 | |
283 : | .qas2_not1 | ||
284 : | edgomez | 1192 | movq mm7, [mmx_div + eax*8 - 8] |
285 : | movq2dq xmm7, mm7 | ||
286 : | movlhps xmm7, xmm7 | ||
287 : | edgomez | 1174 | |
288 : | edgomez | 1192 | ALIGN 16 |
289 : | edgomez | 1174 | .qas2_loop |
290 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
291 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
292 : | pxor xmm1, xmm1 | ||
293 : | pxor xmm4, xmm4 | ||
294 : | pcmpgtw xmm1, xmm0 | ||
295 : | pcmpgtw xmm4, xmm3 | ||
296 : | pxor xmm0, xmm1 | ||
297 : | pxor xmm3, xmm4 | ||
298 : | psubw xmm0, xmm1 | ||
299 : | psubw xmm3, xmm4 | ||
300 : | pmulhw xmm0, xmm7 | ||
301 : | pmulhw xmm3, xmm7 | ||
302 : | pxor xmm0, xmm1 | ||
303 : | pxor xmm3, xmm4 | ||
304 : | psubw xmm0, xmm1 | ||
305 : | psubw xmm3, xmm4 | ||
306 : | movdqa [edi + ecx*8], xmm0 | ||
307 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
308 : | edgomez | 1174 | |
309 : | edgomez | 1192 | add ecx, 4 |
310 : | cmp ecx, 16 | ||
311 : | jnz .qas2_loop | ||
312 : | edgomez | 1174 | |
313 : | edgomez | 1192 | .qas2_done |
314 : | mov ecx, [esp + 8 + 16] ; dcscalar | ||
315 : | mov edx, ecx | ||
316 : | movsx eax, word [esi] | ||
317 : | shr edx, 1 | ||
318 : | cmp eax, 0 | ||
319 : | jg .qas2_gtzero | ||
320 : | edgomez | 1176 | |
321 : | edgomez | 1192 | sub eax, edx |
322 : | jmp short .qas2_mul | ||
323 : | |||
324 : | edgomez | 1174 | .qas2_gtzero |
325 : | edgomez | 1192 | add eax, edx |
326 : | edgomez | 1176 | |
327 : | edgomez | 1174 | .qas2_mul |
328 : | edgomez | 1192 | cdq |
329 : | idiv ecx | ||
330 : | edgomez | 1174 | |
331 : | edgomez | 1192 | mov [edi], ax |
332 : | edgomez | 1174 | |
333 : | edgomez | 1192 | xor eax, eax ; return(0); |
334 : | pop edi | ||
335 : | pop esi | ||
336 : | edgomez | 1174 | |
337 : | edgomez | 1192 | ret |
338 : | |||
339 : | ALIGN 16 | ||
340 : | edgomez | 1174 | .qas2_q1loop |
341 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
342 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
343 : | pxor xmm1, xmm1 | ||
344 : | pxor xmm4, xmm4 | ||
345 : | pcmpgtw xmm1, xmm0 | ||
346 : | pcmpgtw xmm4, xmm3 | ||
347 : | pxor xmm0, xmm1 | ||
348 : | pxor xmm3, xmm4 | ||
349 : | psubw xmm0, xmm1 | ||
350 : | psubw xmm3, xmm4 | ||
351 : | psrlw xmm0, 1 | ||
352 : | psrlw xmm3, 1 | ||
353 : | pxor xmm0, xmm1 | ||
354 : | pxor xmm3, xmm4 | ||
355 : | psubw xmm0, xmm1 | ||
356 : | psubw xmm3, xmm4 | ||
357 : | movdqa [edi + ecx*8], xmm0 | ||
358 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
359 : | edgomez | 1174 | |
360 : | edgomez | 1192 | add ecx, 4 |
361 : | cmp ecx, 16 | ||
362 : | jnz .qas2_q1loop | ||
363 : | jmp near .qas2_done | ||
364 : | edgomez | 1174 | |
365 : | |||
366 : | |||
367 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
368 : | edgomez | 1174 | ; |
369 : | edgomez | 1176 | ; uint32_t quant_h263_inter_mmx(int16_t * coeff, |
370 : | ; const int16_t const * data, | ||
371 : | ; const uint32_t quant); | ||
372 : | edgomez | 1174 | ; |
373 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
374 : | edgomez | 1174 | |
375 : | edgomez | 1192 | ALIGN 16 |
376 : | edgomez | 1174 | quant_h263_inter_mmx: |
377 : | |||
378 : | edgomez | 1192 | push ecx |
379 : | push esi | ||
380 : | push edi | ||
381 : | edgomez | 1174 | |
382 : | edgomez | 1192 | mov edi, [esp + 12 + 4] ; coeff |
383 : | mov esi, [esp + 12 + 8] ; data | ||
384 : | mov eax, [esp + 12 + 12] ; quant | ||
385 : | edgomez | 1174 | |
386 : | edgomez | 1192 | xor ecx, ecx |
387 : | edgomez | 1174 | |
388 : | edgomez | 1192 | pxor mm5, mm5 ; sum |
389 : | movq mm6, [mmx_sub + eax * 8 - 8] ; sub | ||
390 : | edgomez | 1174 | |
391 : | edgomez | 1192 | cmp al, 1 |
392 : | jz .q1loop | ||
393 : | edgomez | 1174 | |
394 : | edgomez | 1192 | movq mm7, [mmx_div + eax * 8 - 8] ; divider |
395 : | edgomez | 1174 | |
396 : | edgomez | 1192 | ALIGN 8 |
397 : | edgomez | 1174 | .loop |
398 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
399 : | movq mm3, [esi + 8*ecx + 8] | ||
400 : | pxor mm1, mm1 ; mm1 = 0 | ||
401 : | pxor mm4, mm4 ; | ||
402 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
403 : | pcmpgtw mm4, mm3 ; | ||
404 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
405 : | pxor mm3, mm4 ; | ||
406 : | psubw mm0, mm1 ; displace | ||
407 : | psubw mm3, mm4 ; | ||
408 : | psubusw mm0, mm6 ; mm0 -= sub (unsigned, dont go < 0) | ||
409 : | psubusw mm3, mm6 ; | ||
410 : | pmulhw mm0, mm7 ; mm0 = (mm0 / 2Q) >> 16 | ||
411 : | pmulhw mm3, mm7 ; | ||
412 : | paddw mm5, mm0 ; sum += mm0 | ||
413 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
414 : | paddw mm5, mm3 ; | ||
415 : | pxor mm3, mm4 ; | ||
416 : | psubw mm0, mm1 ; undisplace | ||
417 : | psubw mm3, mm4 | ||
418 : | movq [edi + 8*ecx], mm0 | ||
419 : | movq [edi + 8*ecx + 8], mm3 | ||
420 : | edgomez | 1174 | |
421 : | edgomez | 1192 | add ecx, 2 |
422 : | cmp ecx, 16 | ||
423 : | jnz .loop | ||
424 : | edgomez | 1174 | |
425 : | .done | ||
426 : | edgomez | 1192 | pmaddwd mm5, [plus_one] |
427 : | movq mm0, mm5 | ||
428 : | psrlq mm5, 32 | ||
429 : | paddd mm0, mm5 | ||
430 : | edgomez | 1174 | |
431 : | edgomez | 1192 | movd eax, mm0 ; return sum |
432 : | pop edi | ||
433 : | pop esi | ||
434 : | pop ecx | ||
435 : | edgomez | 1174 | |
436 : | edgomez | 1192 | ret |
437 : | edgomez | 1174 | |
438 : | edgomez | 1192 | ALIGN 8 |
439 : | edgomez | 1174 | .q1loop |
440 : | edgomez | 1192 | movq mm0, [esi + 8*ecx] ; mm0 = [1st] |
441 : | movq mm3, [esi + 8*ecx+ 8] ; | ||
442 : | pxor mm1, mm1 ; mm1 = 0 | ||
443 : | pxor mm4, mm4 ; | ||
444 : | pcmpgtw mm1, mm0 ; mm1 = (0 > mm0) | ||
445 : | pcmpgtw mm4, mm3 ; | ||
446 : | pxor mm0, mm1 ; mm0 = |mm0| | ||
447 : | pxor mm3, mm4 ; | ||
448 : | psubw mm0, mm1 ; displace | ||
449 : | psubw mm3, mm4 ; | ||
450 : | psubusw mm0, mm6 ; mm0 -= sub (unsigned, dont go < 0) | ||
451 : | psubusw mm3, mm6 ; | ||
452 : | psrlw mm0, 1 ; mm0 >>= 1 (/2) | ||
453 : | psrlw mm3, 1 ; | ||
454 : | paddw mm5, mm0 ; sum += mm0 | ||
455 : | pxor mm0, mm1 ; mm0 *= sign(mm0) | ||
456 : | paddw mm5, mm3 ; | ||
457 : | pxor mm3, mm4 ; | ||
458 : | psubw mm0, mm1 ; undisplace | ||
459 : | psubw mm3, mm4 | ||
460 : | movq [edi + 8*ecx], mm0 | ||
461 : | movq [edi + 8*ecx + 8], mm3 | ||
462 : | edgomez | 1174 | |
463 : | edgomez | 1192 | add ecx, 2 |
464 : | cmp ecx, 16 | ||
465 : | jnz .q1loop | ||
466 : | edgomez | 1174 | |
467 : | edgomez | 1192 | jmp .done |
468 : | edgomez | 1174 | |
469 : | |||
470 : | edgomez | 1192 | |
471 : | ;----------------------------------------------------------------------------- | ||
472 : | edgomez | 1174 | ; |
473 : | edgomez | 1176 | ; uint32_t quant_h263_inter_sse2(int16_t * coeff, |
474 : | ; const int16_t const * data, | ||
475 : | ; const uint32_t quant); | ||
476 : | edgomez | 1174 | ; |
477 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
478 : | edgomez | 1174 | |
479 : | edgomez | 1192 | ALIGN 16 |
480 : | edgomez | 1174 | quant_h263_inter_sse2: |
481 : | |||
482 : | edgomez | 1192 | push esi |
483 : | push edi | ||
484 : | edgomez | 1174 | |
485 : | edgomez | 1192 | mov edi, [esp + 8 + 4] ; coeff |
486 : | mov esi, [esp + 8 + 8] ; data | ||
487 : | mov eax, [esp + 8 + 12] ; quant | ||
488 : | edgomez | 1174 | |
489 : | edgomez | 1192 | xor ecx, ecx |
490 : | edgomez | 1174 | |
491 : | edgomez | 1192 | pxor xmm5, xmm5 ; sum |
492 : | edgomez | 1174 | |
493 : | edgomez | 1192 | movq mm0, [mmx_sub + eax*8 - 8] ; sub |
494 : | movq2dq xmm6, mm0 ; load into low 8 bytes | ||
495 : | movlhps xmm6, xmm6 ; duplicate into high 8 bytes | ||
496 : | edgomez | 1174 | |
497 : | edgomez | 1192 | cmp al, 1 |
498 : | jz near .qes2_q1loop | ||
499 : | edgomez | 1174 | |
500 : | .qes2_not1 | ||
501 : | edgomez | 1192 | movq mm0, [mmx_div + eax*8 - 8] ; divider |
502 : | movq2dq xmm7, mm0 | ||
503 : | movlhps xmm7, xmm7 | ||
504 : | edgomez | 1174 | |
505 : | edgomez | 1192 | ALIGN 16 |
506 : | edgomez | 1174 | .qes2_loop |
507 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
508 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
509 : | pxor xmm1, xmm1 | ||
510 : | pxor xmm4, xmm4 | ||
511 : | pcmpgtw xmm1, xmm0 | ||
512 : | pcmpgtw xmm4, xmm3 | ||
513 : | pxor xmm0, xmm1 | ||
514 : | pxor xmm3, xmm4 | ||
515 : | psubw xmm0, xmm1 | ||
516 : | psubw xmm3, xmm4 | ||
517 : | psubusw xmm0, xmm6 | ||
518 : | psubusw xmm3, xmm6 | ||
519 : | pmulhw xmm0, xmm7 | ||
520 : | pmulhw xmm3, xmm7 | ||
521 : | paddw xmm5, xmm0 | ||
522 : | pxor xmm0, xmm1 | ||
523 : | paddw xmm5, xmm3 | ||
524 : | pxor xmm3, xmm4 | ||
525 : | psubw xmm0, xmm1 | ||
526 : | psubw xmm3, xmm4 | ||
527 : | movdqa [edi + ecx*8], xmm0 | ||
528 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
529 : | edgomez | 1174 | |
530 : | edgomez | 1192 | add ecx, 4 |
531 : | cmp ecx, 16 | ||
532 : | jnz .qes2_loop | ||
533 : | edgomez | 1174 | |
534 : | .qes2_done | ||
535 : | edgomez | 1192 | movdqu xmm6, [plus_one] |
536 : | pmaddwd xmm5, xmm6 | ||
537 : | movhlps xmm6, xmm5 | ||
538 : | paddd xmm5, xmm6 | ||
539 : | movdq2q mm0, xmm5 | ||
540 : | edgomez | 1174 | |
541 : | edgomez | 1192 | movq mm5, mm0 |
542 : | psrlq mm5, 32 | ||
543 : | paddd mm0, mm5 | ||
544 : | edgomez | 1174 | |
545 : | edgomez | 1192 | movd eax, mm0 ; return sum |
546 : | edgomez | 1174 | |
547 : | edgomez | 1192 | pop edi |
548 : | pop esi | ||
549 : | edgomez | 1174 | |
550 : | edgomez | 1192 | ret |
551 : | edgomez | 1176 | |
552 : | edgomez | 1192 | ALIGN 16 |
553 : | edgomez | 1174 | .qes2_q1loop |
554 : | edgomez | 1192 | movdqa xmm0, [esi + ecx*8] ; xmm0 = [1st] |
555 : | movdqa xmm3, [esi + ecx*8 + 16] ; xmm3 = [2nd] | ||
556 : | pxor xmm1, xmm1 | ||
557 : | pxor xmm4, xmm4 | ||
558 : | pcmpgtw xmm1, xmm0 | ||
559 : | pcmpgtw xmm4, xmm3 | ||
560 : | pxor xmm0, xmm1 | ||
561 : | pxor xmm3, xmm4 | ||
562 : | psubw xmm0, xmm1 | ||
563 : | psubw xmm3, xmm4 | ||
564 : | psubusw xmm0, xmm6 | ||
565 : | psubusw xmm3, xmm6 | ||
566 : | psrlw xmm0, 1 | ||
567 : | psrlw xmm3, 1 | ||
568 : | paddw xmm5, xmm0 | ||
569 : | pxor xmm0, xmm1 | ||
570 : | paddw xmm5, xmm3 | ||
571 : | pxor xmm3, xmm4 | ||
572 : | psubw xmm0, xmm1 | ||
573 : | psubw xmm3, xmm4 | ||
574 : | movdqa [edi + ecx*8], xmm0 | ||
575 : | movdqa [edi + ecx*8 + 16], xmm3 | ||
576 : | |||
577 : | add ecx, 4 | ||
578 : | cmp ecx, 16 | ||
579 : | jnz .qes2_q1loop | ||
580 : | jmp .qes2_done | ||
581 : | |||
582 : | |||
583 : | ;----------------------------------------------------------------------------- | ||
584 : | edgomez | 1174 | ; |
585 : | edgomez | 1176 | ; uint32_t dequant_h263_intra_mmx(int16_t *data, |
586 : | ; const int16_t const *coeff, | ||
587 : | ; const uint32_t quant, | ||
588 : | ; const uint32_t dcscalar); | ||
589 : | edgomez | 1174 | ; |
590 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
591 : | edgomez | 1174 | |
592 : | ; note: we only saturate to +2047 *before* restoring the sign. | ||
593 : | ; Hence, final clamp really is [-2048,2047] | ||
594 : | |||
595 : | edgomez | 1192 | ALIGN 16 |
596 : | edgomez | 1174 | dequant_h263_intra_mmx: |
597 : | |||
598 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
599 : | mov ecx, [esp+ 8] ; coeff | ||
600 : | mov eax, [esp+12] ; quant | ||
601 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
602 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
603 : | mov eax, -16 | ||
604 : | edgomez | 1174 | |
605 : | edgomez | 1192 | ALIGN 16 |
606 : | edgomez | 1174 | .loop |
607 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
608 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
609 : | pxor mm1, mm1 | ||
610 : | pxor mm4, mm4 | ||
611 : | pcmpgtw mm1, mm0 ; sign(c) | ||
612 : | pcmpgtw mm4, mm3 ; sign(c') | ||
613 : | pxor mm2, mm2 | ||
614 : | pxor mm5, mm5 | ||
615 : | pcmpeqw mm2, mm0 ; c is zero | ||
616 : | pcmpeqw mm5, mm3 ; c' is zero | ||
617 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
618 : | pandn mm5, mm6 | ||
619 : | pxor mm0, mm1 ; negate if negative | ||
620 : | pxor mm3, mm4 ; negate if negative | ||
621 : | psubw mm0, mm1 | ||
622 : | psubw mm3, mm4 | ||
623 : | pmullw mm0, mm7 ; *= 2Q | ||
624 : | pmullw mm3, mm7 ; *= 2Q | ||
625 : | paddw mm0, mm2 ; + offset | ||
626 : | paddw mm3, mm5 ; + offset | ||
627 : | paddw mm0, mm1 ; negate back | ||
628 : | paddw mm3, mm4 ; negate back | ||
629 : | edgomez | 1174 | |
630 : | edgomez | 1192 | ; saturates to +2047 |
631 : | movq mm2, [mmx_32767_minus_2047] | ||
632 : | add eax, 2 | ||
633 : | paddsw mm0, mm2 | ||
634 : | paddsw mm3, mm2 | ||
635 : | psubsw mm0, mm2 | ||
636 : | psubsw mm3, mm2 | ||
637 : | edgomez | 1174 | |
638 : | edgomez | 1192 | pxor mm0, mm1 |
639 : | pxor mm3, mm4 | ||
640 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
641 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
642 : | jnz near .loop | ||
643 : | edgomez | 1174 | |
644 : | edgomez | 1192 | ; deal with DC |
645 : | movd mm0, [ecx] | ||
646 : | pmullw mm0, [esp+16] ; dcscalar | ||
647 : | movq mm2, [mmx_32767_minus_2047] | ||
648 : | paddsw mm0, mm2 | ||
649 : | psubsw mm0, mm2 | ||
650 : | movq mm3, [mmx_32768_minus_2048] | ||
651 : | psubsw mm0, mm3 | ||
652 : | paddsw mm0, mm3 | ||
653 : | movd eax, mm0 | ||
654 : | mov [edx], ax | ||
655 : | edgomez | 1174 | |
656 : | edgomez | 1192 | xor eax, eax ; return(0); |
657 : | ret | ||
658 : | edgomez | 1174 | |
659 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
660 : | edgomez | 1174 | ; |
661 : | edgomez | 1176 | ; uint32_t dequant_h263_intra_xmm(int16_t *data, |
662 : | ; const int16_t const *coeff, | ||
663 : | ; const uint32_t quant, | ||
664 : | ; const uint32_t dcscalar); | ||
665 : | edgomez | 1174 | ; |
666 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
667 : | edgomez | 1174 | |
668 : | ; this is the same as dequant_inter_mmx, except that we're | ||
669 : | ; saturating using 'pminsw' (saves 2 cycles/loop => ~5% faster) | ||
670 : | |||
671 : | edgomez | 1192 | ALIGN 16 |
672 : | edgomez | 1174 | dequant_h263_intra_xmm: |
673 : | |||
674 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
675 : | mov ecx, [esp+ 8] ; coeff | ||
676 : | mov eax, [esp+12] ; quant | ||
677 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
678 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
679 : | mov eax, -16 | ||
680 : | edgomez | 1174 | |
681 : | edgomez | 1192 | ALIGN 16 |
682 : | edgomez | 1174 | .loop |
683 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
684 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
685 : | pxor mm1, mm1 | ||
686 : | pxor mm4, mm4 | ||
687 : | pcmpgtw mm1, mm0 ; sign(c) | ||
688 : | pcmpgtw mm4, mm3 ; sign(c') | ||
689 : | pxor mm2, mm2 | ||
690 : | pxor mm5, mm5 | ||
691 : | pcmpeqw mm2, mm0 ; c is zero | ||
692 : | pcmpeqw mm5, mm3 ; c' is zero | ||
693 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
694 : | pandn mm5, mm6 | ||
695 : | pxor mm0, mm1 ; negate if negative | ||
696 : | pxor mm3, mm4 ; negate if negative | ||
697 : | psubw mm0, mm1 | ||
698 : | psubw mm3, mm4 | ||
699 : | pmullw mm0, mm7 ; *= 2Q | ||
700 : | pmullw mm3, mm7 ; *= 2Q | ||
701 : | paddw mm0, mm2 ; + offset | ||
702 : | paddw mm3, mm5 ; + offset | ||
703 : | paddw mm0, mm1 ; negate back | ||
704 : | paddw mm3, mm4 ; negate back | ||
705 : | edgomez | 1174 | |
706 : | edgomez | 1176 | ; saturates to +2047 |
707 : | edgomez | 1192 | movq mm2, [mmx_2047] |
708 : | pminsw mm0, mm2 | ||
709 : | add eax, 2 | ||
710 : | pminsw mm3, mm2 | ||
711 : | edgomez | 1174 | |
712 : | edgomez | 1192 | pxor mm0, mm1 |
713 : | pxor mm3, mm4 | ||
714 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
715 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
716 : | jnz near .loop | ||
717 : | edgomez | 1174 | |
718 : | ; deal with DC | ||
719 : | edgomez | 1192 | movd mm0, [ecx] |
720 : | pmullw mm0, [esp+16] ; dcscalar | ||
721 : | movq mm2, [mmx_32767_minus_2047] | ||
722 : | paddsw mm0, mm2 | ||
723 : | psubsw mm0, mm2 | ||
724 : | movq mm2, [mmx_32768_minus_2048] | ||
725 : | psubsw mm0, mm2 | ||
726 : | paddsw mm0, mm2 | ||
727 : | movd eax, mm0 | ||
728 : | mov [edx], ax | ||
729 : | edgomez | 1174 | |
730 : | edgomez | 1192 | xor eax, eax |
731 : | ret | ||
732 : | edgomez | 1174 | |
733 : | |||
734 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
735 : | edgomez | 1174 | ; |
736 : | edgomez | 1176 | ; uint32_t dequant_h263_intra_sse2(int16_t *data, |
737 : | ; const int16_t const *coeff, | ||
738 : | ; const uint32_t quant, | ||
739 : | ; const uint32_t dcscalar); | ||
740 : | edgomez | 1174 | ; |
741 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
742 : | edgomez | 1176 | |
743 : | edgomez | 1192 | ALIGN 16 |
744 : | edgomez | 1174 | dequant_h263_intra_sse2: |
745 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
746 : | mov ecx, [esp+ 8] ; coeff | ||
747 : | mov eax, [esp+12] ; quant | ||
748 : | movq mm6, [mmx_add + eax * 8 - 8] | ||
749 : | movq mm7, [mmx_mul + eax * 8 - 8] | ||
750 : | movq2dq xmm6, mm6 | ||
751 : | movq2dq xmm7, mm7 | ||
752 : | movlhps xmm6, xmm6 | ||
753 : | movlhps xmm7, xmm7 | ||
754 : | mov eax, -16 | ||
755 : | edgomez | 1174 | |
756 : | edgomez | 1192 | ALIGN 16 |
757 : | edgomez | 1174 | .loop |
758 : | edgomez | 1192 | movdqa xmm0, [ecx + 8*16 + 8*eax] ; c = coeff[i] |
759 : | movdqa xmm3, [ecx + 8*16 + 8*eax+ 16] | ||
760 : | pxor xmm1, xmm1 | ||
761 : | pxor xmm4, xmm4 | ||
762 : | pcmpgtw xmm1, xmm0 ; sign(c) | ||
763 : | pcmpgtw xmm4, xmm3 | ||
764 : | pxor xmm2, xmm2 | ||
765 : | pxor xmm5, xmm5 | ||
766 : | pcmpeqw xmm2, xmm0 ; c is zero | ||
767 : | pcmpeqw xmm5, xmm3 | ||
768 : | pandn xmm2, xmm6 ; offset = isZero ? 0 : quant_add | ||
769 : | pandn xmm5, xmm6 | ||
770 : | pxor xmm0, xmm1 ; negate if negative | ||
771 : | pxor xmm3, xmm4 | ||
772 : | psubw xmm0, xmm1 | ||
773 : | psubw xmm3, xmm4 | ||
774 : | pmullw xmm0, xmm7 ; *= 2Q | ||
775 : | pmullw xmm3, xmm7 | ||
776 : | paddw xmm0, xmm2 ; + offset | ||
777 : | paddw xmm3, xmm5 | ||
778 : | paddw xmm0, xmm1 ; negate back | ||
779 : | paddw xmm3, xmm4 | ||
780 : | edgomez | 1174 | |
781 : | edgomez | 1192 | ; saturates to +2047 |
782 : | movdqa xmm2, [sse2_2047] | ||
783 : | pminsw xmm0, xmm2 | ||
784 : | add eax, 4 | ||
785 : | pminsw xmm3, xmm2 | ||
786 : | edgomez | 1174 | |
787 : | edgomez | 1192 | pxor xmm0, xmm1 |
788 : | pxor xmm3, xmm4 | ||
789 : | movdqa [edx + 8*16 - 8*4 + 8*eax], xmm0 | ||
790 : | movdqa [edx + 8*16 - 8*4 + 8*eax + 16], xmm3 | ||
791 : | jnz near .loop | ||
792 : | edgomez | 1174 | |
793 : | edgomez | 1192 | ; deal with DC |
794 : | movd mm0, [ecx] | ||
795 : | pmullw mm0, [esp+16] ; dcscalar | ||
796 : | movq mm2, [mmx_32767_minus_2047] | ||
797 : | paddsw mm0, mm2 | ||
798 : | psubsw mm0, mm2 | ||
799 : | movq mm2, [mmx_32768_minus_2048] | ||
800 : | psubsw mm0, mm2 | ||
801 : | paddsw mm0, mm2 | ||
802 : | movd eax, mm0 | ||
803 : | mov [edx], ax | ||
804 : | edgomez | 1174 | |
805 : | edgomez | 1192 | xor eax, eax |
806 : | ret | ||
807 : | edgomez | 1174 | |
808 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
809 : | edgomez | 1174 | ; |
810 : | edgomez | 1176 | ; uint32t dequant_h263_inter_mmx(int16_t * data, |
811 : | ; const int16_t * const coeff, | ||
812 : | ; const uint32_t quant); | ||
813 : | edgomez | 1174 | ; |
814 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
815 : | edgomez | 1174 | |
816 : | edgomez | 1192 | ALIGN 16 |
817 : | edgomez | 1174 | dequant_h263_inter_mmx: |
818 : | |||
819 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
820 : | mov ecx, [esp+ 8] ; coeff | ||
821 : | mov eax, [esp+12] ; quant | ||
822 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
823 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
824 : | mov eax, -16 | ||
825 : | edgomez | 1174 | |
826 : | edgomez | 1192 | ALIGN 16 |
827 : | edgomez | 1174 | .loop |
828 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
829 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
830 : | pxor mm1, mm1 | ||
831 : | pxor mm4, mm4 | ||
832 : | pcmpgtw mm1, mm0 ; sign(c) | ||
833 : | pcmpgtw mm4, mm3 ; sign(c') | ||
834 : | pxor mm2, mm2 | ||
835 : | pxor mm5, mm5 | ||
836 : | pcmpeqw mm2, mm0 ; c is zero | ||
837 : | pcmpeqw mm5, mm3 ; c' is zero | ||
838 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
839 : | pandn mm5, mm6 | ||
840 : | pxor mm0, mm1 ; negate if negative | ||
841 : | pxor mm3, mm4 ; negate if negative | ||
842 : | psubw mm0, mm1 | ||
843 : | psubw mm3, mm4 | ||
844 : | pmullw mm0, mm7 ; *= 2Q | ||
845 : | pmullw mm3, mm7 ; *= 2Q | ||
846 : | paddw mm0, mm2 ; + offset | ||
847 : | paddw mm3, mm5 ; + offset | ||
848 : | paddw mm0, mm1 ; negate back | ||
849 : | paddw mm3, mm4 ; negate back | ||
850 : | ; saturates to +2047 | ||
851 : | movq mm2, [mmx_32767_minus_2047] | ||
852 : | add eax, 2 | ||
853 : | paddsw mm0, mm2 | ||
854 : | paddsw mm3, mm2 | ||
855 : | psubsw mm0, mm2 | ||
856 : | psubsw mm3, mm2 | ||
857 : | edgomez | 1174 | |
858 : | edgomez | 1192 | pxor mm0, mm1 |
859 : | pxor mm3, mm4 | ||
860 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
861 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
862 : | jnz near .loop | ||
863 : | edgomez | 1174 | |
864 : | edgomez | 1192 | xor eax, eax |
865 : | ret | ||
866 : | edgomez | 1174 | |
867 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
868 : | edgomez | 1174 | ; |
869 : | edgomez | 1176 | ; uint32_t dequant_h263_inter_xmm(int16_t * data, |
870 : | ; const int16_t * const coeff, | ||
871 : | ; const uint32_t quant); | ||
872 : | edgomez | 1174 | ; |
873 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
874 : | edgomez | 1174 | |
875 : | ; this is the same as dequant_inter_mmx, | ||
876 : | ; except that we're saturating using 'pminsw' (saves 2 cycles/loop) | ||
877 : | |||
878 : | edgomez | 1192 | ALIGN 16 |
879 : | edgomez | 1174 | dequant_h263_inter_xmm: |
880 : | |||
881 : | edgomez | 1192 | mov edx, [esp+ 4] ; data |
882 : | mov ecx, [esp+ 8] ; coeff | ||
883 : | mov eax, [esp+12] ; quant | ||
884 : | movq mm6, [mmx_add + eax*8 - 8] ; quant or quant-1 | ||
885 : | movq mm7, [mmx_mul + eax*8 - 8] ; 2*quant | ||
886 : | mov eax, -16 | ||
887 : | edgomez | 1174 | |
888 : | edgomez | 1192 | ALIGN 16 |
889 : | edgomez | 1174 | .loop |
890 : | edgomez | 1192 | movq mm0, [ecx+8*eax+8*16] ; c = coeff[i] |
891 : | movq mm3, [ecx+8*eax+8*16 + 8] ; c' = coeff[i+1] | ||
892 : | pxor mm1, mm1 | ||
893 : | pxor mm4, mm4 | ||
894 : | pcmpgtw mm1, mm0 ; sign(c) | ||
895 : | pcmpgtw mm4, mm3 ; sign(c') | ||
896 : | pxor mm2, mm2 | ||
897 : | pxor mm5, mm5 | ||
898 : | pcmpeqw mm2, mm0 ; c is zero | ||
899 : | pcmpeqw mm5, mm3 ; c' is zero | ||
900 : | pandn mm2, mm6 ; offset = isZero ? 0 : quant_add | ||
901 : | pandn mm5, mm6 | ||
902 : | pxor mm0, mm1 ; negate if negative | ||
903 : | pxor mm3, mm4 ; negate if negative | ||
904 : | psubw mm0, mm1 | ||
905 : | psubw mm3, mm4 | ||
906 : | pmullw mm0, mm7 ; *= 2Q | ||
907 : | pmullw mm3, mm7 ; *= 2Q | ||
908 : | paddw mm0, mm2 ; + offset | ||
909 : | paddw mm3, mm5 ; + offset | ||
910 : | paddw mm0, mm1 ; start restoring sign | ||
911 : | paddw mm3, mm4 ; start restoring sign | ||
912 : | ; saturates to +2047 | ||
913 : | movq mm2, [mmx_2047] | ||
914 : | pminsw mm0, mm2 | ||
915 : | add eax, 2 | ||
916 : | pminsw mm3, mm2 | ||
917 : | edgomez | 1174 | |
918 : | edgomez | 1192 | pxor mm0, mm1 ; finish restoring sign |
919 : | pxor mm3, mm4 ; finish restoring sign | ||
920 : | movq [edx + 8*eax + 8*16 - 2*8], mm0 | ||
921 : | movq [edx + 8*eax + 8*16+8 - 2*8], mm3 | ||
922 : | jnz near .loop | ||
923 : | edgomez | 1174 | |
924 : | edgomez | 1192 | xor eax, eax |
925 : | ret | ||
926 : | edgomez | 1174 | |
927 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
928 : | edgomez | 1174 | ; |
929 : | edgomez | 1176 | ; uint32_t dequant_h263_inter_sse2(int16_t * data, |
930 : | ; const int16_t * const coeff, | ||
931 : | ; const uint32_t quant); | ||
932 : | edgomez | 1174 | ; |
933 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
934 : | |||
935 : | ALIGN 16 | ||
936 : | edgomez | 1174 | dequant_h263_inter_sse2: |
937 : | edgomez | 1192 | mov edx, [esp + 4] ; data |
938 : | mov ecx, [esp + 8] ; coeff | ||
939 : | mov eax, [esp + 12] ; quant | ||
940 : | movq mm6, [mmx_add + eax * 8 - 8] | ||
941 : | movq mm7, [mmx_mul + eax * 8 - 8] | ||
942 : | movq2dq xmm6, mm6 | ||
943 : | movq2dq xmm7, mm7 | ||
944 : | movlhps xmm6, xmm6 | ||
945 : | movlhps xmm7, xmm7 | ||
946 : | mov eax, -16 | ||
947 : | edgomez | 1174 | |
948 : | edgomez | 1192 | ALIGN 16 |
949 : | edgomez | 1174 | .loop |
950 : | edgomez | 1192 | movdqa xmm0, [ecx + 8*16 + 8*eax] ; c = coeff[i] |
951 : | movdqa xmm3, [ecx + 8*16 + 8*eax + 16] | ||
952 : | edgomez | 1174 | |
953 : | edgomez | 1192 | pxor xmm1, xmm1 |
954 : | pxor xmm4, xmm4 | ||
955 : | pcmpgtw xmm1, xmm0 ; sign(c) | ||
956 : | pcmpgtw xmm4, xmm3 | ||
957 : | pxor xmm2, xmm2 | ||
958 : | pxor xmm5, xmm5 | ||
959 : | pcmpeqw xmm2, xmm0 ; c is zero | ||
960 : | pcmpeqw xmm5, xmm3 | ||
961 : | pandn xmm2, xmm6 | ||
962 : | pandn xmm5, xmm6 | ||
963 : | pxor xmm0, xmm1 ; negate if negative | ||
964 : | pxor xmm3, xmm4 | ||
965 : | psubw xmm0, xmm1 | ||
966 : | psubw xmm3, xmm4 | ||
967 : | pmullw xmm0, xmm7 ; *= 2Q | ||
968 : | pmullw xmm3, xmm7 | ||
969 : | paddw xmm0, xmm2 ; + offset | ||
970 : | paddw xmm3, xmm5 | ||
971 : | edgomez | 1174 | |
972 : | edgomez | 1192 | paddw xmm0, xmm1 ; start restoring sign |
973 : | paddw xmm3, xmm4 | ||
974 : | edgomez | 1174 | |
975 : | edgomez | 1192 | ; saturates to +2047 |
976 : | movdqa xmm2, [sse2_2047] | ||
977 : | pminsw xmm0, xmm2 | ||
978 : | add eax, 4 | ||
979 : | pminsw xmm3, xmm2 | ||
980 : | edgomez | 1174 | |
981 : | edgomez | 1192 | pxor xmm0, xmm1 ; finish restoring sign |
982 : | pxor xmm3, xmm4 | ||
983 : | movdqa [edx + 8*16 - 8*4 + 8*eax], xmm0 | ||
984 : | movdqa [edx + 8*16 - 8*4 + 8*eax + 16], xmm3 | ||
985 : | jnz near .loop | ||
986 : | edgomez | 1174 | |
987 : | edgomez | 1192 | xor eax, eax |
988 : | ret |
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