2 * MPEG video MMX templates
4 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of Libav.
8 * Libav is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * Libav is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with Libav; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
33 #define MMREG_WIDTH "16"
37 "pshuflw $0, "a", "a" \n\t"\
38 "punpcklwd "a", "a" \n\t"
39 #define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
41 "movhlps "a", "b" \n\t"\
43 "pshuflw $0x0E, "a", "b" \n\t"\
45 "pshuflw $0x01, "a", "b" \n\t"\
48 #define MMREG_WIDTH "8"
52 #define SPREADW(a) "pshufw $0, "a", "a" \n\t"
53 #define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
55 "pshufw $0x0E, "a", "b" \n\t"\
57 "pshufw $0x01, "a", "b" \n\t"\
61 "punpcklwd "a", "a" \n\t"\
62 "punpcklwd "a", "a" \n\t"
64 "psubusw "a", "b" \n\t"\
68 "psrlq $32, "a" \n\t"\
71 "psrlq $16, "a" \n\t"\
78 #define SAVE_SIGN(a,b) \
79 "movdqa "b", "a" \n\t"\
81 #define RESTORE_SIGN(a,b) \
82 "psignw "a", "b" \n\t"
84 #define SAVE_SIGN(a,b) \
86 "pcmpgtw "b", "a" \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
88 "psubw "a", "b" \n\t" /* ABS(block[i]) */
89 #define RESTORE_SIGN(a,b) \
91 "psubw "a", "b" \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
94 static int RENAME(dct_quantize)(MpegEncContext *s,
95 DCTELEM *block, int n,
96 int qscale, int *overflow)
98 x86_reg last_non_zero_p1;
99 int level=0, q; //=0 is because gcc says uninitialized ...
100 const uint16_t *qmat, *bias;
101 LOCAL_ALIGNED_16(int16_t, temp_block, [64]);
103 assert((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?
106 RENAMEl(ff_fdct) (block); //cannot be anything else ...
109 s->denoise_dct(s, block);
117 /* note: block[0] is assumed to be positive */
121 : "=d" (level), "=a"(dummy)
122 : "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
125 /* For AIC we skip quant/dequant of INTRADC */
126 level = (block[0] + 4)>>3;
128 block[0]=0; //avoid fake overflow
129 // temp_block[0] = (block[0] + (q >> 1)) / q;
130 last_non_zero_p1 = 1;
131 bias = s->q_intra_matrix16[qscale][1];
132 qmat = s->q_intra_matrix16[qscale][0];
134 last_non_zero_p1 = 0;
135 bias = s->q_inter_matrix16[qscale][1];
136 qmat = s->q_inter_matrix16[qscale][0];
139 if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){
142 "movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
144 "pxor "MM"7, "MM"7 \n\t" // 0
145 "pxor "MM"4, "MM"4 \n\t" // 0
146 MOVQ" (%2), "MM"5 \n\t" // qmat[0]
147 "pxor "MM"6, "MM"6 \n\t"
148 "psubw (%3), "MM"6 \n\t" // -bias[0]
149 "mov $-128, %%"REG_a" \n\t"
152 MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
153 SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
154 "psubusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
155 "pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
156 "por "MM"0, "MM"4 \n\t"
157 RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
158 MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
159 "pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
160 MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
161 MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
162 "pandn "MM"1, "MM"0 \n\t"
164 "add $"MMREG_WIDTH", %%"REG_a" \n\t"
167 "movd "MM"3, %%"REG_a" \n\t"
168 "movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
169 : "+a" (last_non_zero_p1)
170 : "r" (block+64), "r" (qmat), "r" (bias),
171 "r" (inv_zigzag_direct16+64), "r" (temp_block+64)
172 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
173 "%xmm4", "%xmm5", "%xmm6", "%xmm7")
177 "movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
179 "pxor "MM"7, "MM"7 \n\t" // 0
180 "pxor "MM"4, "MM"4 \n\t" // 0
181 "mov $-128, %%"REG_a" \n\t"
184 MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
185 SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
186 MOVQ" (%3, %%"REG_a"), "MM"6 \n\t" // bias[0]
187 "paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
188 MOVQ" (%2, %%"REG_a"), "MM"5 \n\t" // qmat[i]
189 "pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
190 "por "MM"0, "MM"4 \n\t"
191 RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
192 MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
193 "pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
194 MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
195 MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
196 "pandn "MM"1, "MM"0 \n\t"
198 "add $"MMREG_WIDTH", %%"REG_a" \n\t"
201 "movd "MM"3, %%"REG_a" \n\t"
202 "movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
203 : "+a" (last_non_zero_p1)
204 : "r" (block+64), "r" (qmat+64), "r" (bias+64),
205 "r" (inv_zigzag_direct16+64), "r" (temp_block+64)
206 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
207 "%xmm4", "%xmm5", "%xmm6", "%xmm7")
211 "movd %1, "MM"1 \n\t" // max_qcoeff
213 "psubusw "MM"1, "MM"4 \n\t"
214 "packuswb "MM"4, "MM"4 \n\t"
216 "packuswb "MM"4, "MM"4 \n\t"
218 "movd "MM"4, %0 \n\t" // *overflow
220 : "g" (s->max_qcoeff)
223 if(s->mb_intra) block[0]= level;
224 else block[0]= temp_block[0];
226 if(s->dsp.idct_permutation_type == FF_SIMPLE_IDCT_PERM){
227 if(last_non_zero_p1 <= 1) goto end;
228 block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
229 block[0x20] = temp_block[0x10];
230 if(last_non_zero_p1 <= 4) goto end;
231 block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
232 block[0x09] = temp_block[0x03];
233 if(last_non_zero_p1 <= 7) goto end;
234 block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
235 block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
236 if(last_non_zero_p1 <= 11) goto end;
237 block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
238 block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
239 block[0x0C] = temp_block[0x05];
240 if(last_non_zero_p1 <= 16) goto end;
241 block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
242 block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
243 block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
244 block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
245 if(last_non_zero_p1 <= 24) goto end;
246 block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
247 block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
248 block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
249 block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
250 if(last_non_zero_p1 <= 32) goto end;
251 block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
252 block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
253 block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
254 block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
255 if(last_non_zero_p1 <= 40) goto end;
256 block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
257 block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
258 block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
259 block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
260 if(last_non_zero_p1 <= 48) goto end;
261 block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
262 block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
263 block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
264 block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
265 if(last_non_zero_p1 <= 56) goto end;
266 block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
267 block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
268 block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
269 block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
270 }else if(s->dsp.idct_permutation_type == FF_LIBMPEG2_IDCT_PERM){
271 if(last_non_zero_p1 <= 1) goto end;
272 block[0x04] = temp_block[0x01];
273 block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
274 if(last_non_zero_p1 <= 4) goto end;
275 block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
276 block[0x05] = temp_block[0x03];
277 if(last_non_zero_p1 <= 7) goto end;
278 block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
279 block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
280 if(last_non_zero_p1 <= 11) goto end;
281 block[0x1C] = temp_block[0x19];
282 block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
283 block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
284 if(last_non_zero_p1 <= 16) goto end;
285 block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
286 block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
287 block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
288 block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
289 if(last_non_zero_p1 <= 24) goto end;
290 block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
291 block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
292 block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
293 block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
294 if(last_non_zero_p1 <= 32) goto end;
295 block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
296 block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
297 block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
298 block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
299 if(last_non_zero_p1 <= 40) goto end;
300 block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
301 block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
302 block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
303 block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
304 if(last_non_zero_p1 <= 48) goto end;
305 block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
306 block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
307 block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
308 block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
309 if(last_non_zero_p1 <= 56) goto end;
310 block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
311 block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
312 block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
313 block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
315 if(last_non_zero_p1 <= 1) goto end;
316 block[0x01] = temp_block[0x01];
317 block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
318 if(last_non_zero_p1 <= 4) goto end;
319 block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
320 block[0x03] = temp_block[0x03];
321 if(last_non_zero_p1 <= 7) goto end;
322 block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];
323 block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
324 if(last_non_zero_p1 <= 11) goto end;
325 block[0x19] = temp_block[0x19];
326 block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];
327 block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];
328 if(last_non_zero_p1 <= 16) goto end;
329 block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];
330 block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];
331 block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
332 block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];
333 if(last_non_zero_p1 <= 24) goto end;
334 block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];
335 block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];
336 block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];
337 block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];
338 if(last_non_zero_p1 <= 32) goto end;
339 block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];
340 block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];
341 block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];
342 block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
343 if(last_non_zero_p1 <= 40) goto end;
344 block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];
345 block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
346 block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];
347 block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];
348 if(last_non_zero_p1 <= 48) goto end;
349 block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
350 block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
351 block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
352 block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];
353 if(last_non_zero_p1 <= 56) goto end;
354 block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];
355 block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
356 block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
357 block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
361 for(i=0; i<last_non_zero_p1; i++)
363 int j= zigzag_direct_noperm[i];
364 block[block_permute_op(j)]= temp_block[j];
368 return last_non_zero_p1 - 1;