2 * MPEG video MMX templates
4 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 #if COMPILE_TEMPLATE_SSE2
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"
51 #if COMPILE_TEMPLATE_MMXEXT
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"\
77 #if COMPILE_TEMPLATE_SSSE3
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 int16_t *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 av_assert2((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);
115 bias = s->q_intra_matrix16[qscale][1];
116 qmat = s->q_intra_matrix16[qscale][0];
119 bias = s->q_chroma_intra_matrix16[qscale][1];
120 qmat = s->q_chroma_intra_matrix16[qscale][0];
122 /* note: block[0] is assumed to be positive */
126 : "=d" (level), "=a"(dummy)
127 : "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
130 /* For AIC we skip quant/dequant of INTRADC */
131 level = (block[0] + 4)>>3;
133 block[0]=0; //avoid fake overflow
134 // temp_block[0] = (block[0] + (q >> 1)) / q;
135 last_non_zero_p1 = 1;
137 last_non_zero_p1 = 0;
138 bias = s->q_inter_matrix16[qscale][1];
139 qmat = s->q_inter_matrix16[qscale][0];
142 if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){
145 "movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
147 "pxor "MM"7, "MM"7 \n\t" // 0
148 "pxor "MM"4, "MM"4 \n\t" // 0
149 MOVQ" (%2), "MM"5 \n\t" // qmat[0]
150 "pxor "MM"6, "MM"6 \n\t"
151 "psubw (%3), "MM"6 \n\t" // -bias[0]
152 "mov $-128, %%"REG_a" \n\t"
155 MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
156 SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
157 "psubusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
158 "pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
159 "por "MM"0, "MM"4 \n\t"
160 RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
161 MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
162 "pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
163 MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
164 MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
165 "pandn "MM"1, "MM"0 \n\t"
167 "add $"MMREG_WIDTH", %%"REG_a" \n\t"
170 "movd "MM"3, %%"REG_a" \n\t"
171 "movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
172 : "+a" (last_non_zero_p1)
173 : "r" (block+64), "r" (qmat), "r" (bias),
174 "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
175 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
176 "%xmm4", "%xmm5", "%xmm6", "%xmm7")
180 "movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
182 "pxor "MM"7, "MM"7 \n\t" // 0
183 "pxor "MM"4, "MM"4 \n\t" // 0
184 "mov $-128, %%"REG_a" \n\t"
187 MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
188 SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
189 MOVQ" (%3, %%"REG_a"), "MM"6 \n\t" // bias[0]
190 "paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
191 MOVQ" (%2, %%"REG_a"), "MM"5 \n\t" // qmat[i]
192 "pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
193 "por "MM"0, "MM"4 \n\t"
194 RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
195 MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
196 "pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
197 MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
198 MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
199 "pandn "MM"1, "MM"0 \n\t"
201 "add $"MMREG_WIDTH", %%"REG_a" \n\t"
204 "movd "MM"3, %%"REG_a" \n\t"
205 "movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
206 : "+a" (last_non_zero_p1)
207 : "r" (block+64), "r" (qmat+64), "r" (bias+64),
208 "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
209 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
210 "%xmm4", "%xmm5", "%xmm6", "%xmm7")
214 "movd %1, "MM"1 \n\t" // max_qcoeff
216 "psubusw "MM"1, "MM"4 \n\t"
217 "packuswb "MM"4, "MM"4 \n\t"
218 #if COMPILE_TEMPLATE_SSE2
219 "packuswb "MM"4, "MM"4 \n\t"
221 "movd "MM"4, %0 \n\t" // *overflow
223 : "g" (s->max_qcoeff)
226 if(s->mb_intra) block[0]= level;
227 else block[0]= temp_block[0];
229 if(s->dsp.idct_permutation_type == FF_SIMPLE_IDCT_PERM){
230 if(last_non_zero_p1 <= 1) goto end;
231 block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
232 block[0x20] = temp_block[0x10];
233 if(last_non_zero_p1 <= 4) goto end;
234 block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
235 block[0x09] = temp_block[0x03];
236 if(last_non_zero_p1 <= 7) goto end;
237 block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
238 block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
239 if(last_non_zero_p1 <= 11) goto end;
240 block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
241 block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
242 block[0x0C] = temp_block[0x05];
243 if(last_non_zero_p1 <= 16) goto end;
244 block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
245 block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
246 block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
247 block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
248 if(last_non_zero_p1 <= 24) goto end;
249 block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
250 block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
251 block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
252 block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
253 if(last_non_zero_p1 <= 32) goto end;
254 block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
255 block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
256 block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
257 block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
258 if(last_non_zero_p1 <= 40) goto end;
259 block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
260 block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
261 block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
262 block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
263 if(last_non_zero_p1 <= 48) goto end;
264 block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
265 block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
266 block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
267 block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
268 if(last_non_zero_p1 <= 56) goto end;
269 block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
270 block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
271 block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
272 block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
273 }else if(s->dsp.idct_permutation_type == FF_LIBMPEG2_IDCT_PERM){
274 if(last_non_zero_p1 <= 1) goto end;
275 block[0x04] = temp_block[0x01];
276 block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
277 if(last_non_zero_p1 <= 4) goto end;
278 block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
279 block[0x05] = temp_block[0x03];
280 if(last_non_zero_p1 <= 7) goto end;
281 block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
282 block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
283 if(last_non_zero_p1 <= 11) goto end;
284 block[0x1C] = temp_block[0x19];
285 block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
286 block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
287 if(last_non_zero_p1 <= 16) goto end;
288 block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
289 block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
290 block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
291 block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
292 if(last_non_zero_p1 <= 24) goto end;
293 block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
294 block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
295 block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
296 block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
297 if(last_non_zero_p1 <= 32) goto end;
298 block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
299 block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
300 block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
301 block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
302 if(last_non_zero_p1 <= 40) goto end;
303 block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
304 block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
305 block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
306 block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
307 if(last_non_zero_p1 <= 48) goto end;
308 block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
309 block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
310 block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
311 block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
312 if(last_non_zero_p1 <= 56) goto end;
313 block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
314 block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
315 block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
316 block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
318 if(last_non_zero_p1 <= 1) goto end;
319 block[0x01] = temp_block[0x01];
320 block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
321 if(last_non_zero_p1 <= 4) goto end;
322 block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
323 block[0x03] = temp_block[0x03];
324 if(last_non_zero_p1 <= 7) goto end;
325 block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];
326 block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
327 if(last_non_zero_p1 <= 11) goto end;
328 block[0x19] = temp_block[0x19];
329 block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];
330 block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];
331 if(last_non_zero_p1 <= 16) goto end;
332 block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];
333 block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];
334 block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
335 block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];
336 if(last_non_zero_p1 <= 24) goto end;
337 block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];
338 block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];
339 block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];
340 block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];
341 if(last_non_zero_p1 <= 32) goto end;
342 block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];
343 block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];
344 block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];
345 block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
346 if(last_non_zero_p1 <= 40) goto end;
347 block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];
348 block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
349 block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];
350 block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];
351 if(last_non_zero_p1 <= 48) goto end;
352 block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
353 block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
354 block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
355 block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];
356 if(last_non_zero_p1 <= 56) goto end;
357 block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];
358 block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
359 block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
360 block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
363 return last_non_zero_p1 - 1;