1 ;*****************************************************************************
2 ;* SSE2-optimized HEVC deblocking code
3 ;*****************************************************************************
4 ;* Copyright (C) 2013 VTT
6 ;* Authors: Seppo Tomperi <seppo.tomperi@vtt.fi>
8 ;* This file is part of FFmpeg.
10 ;* FFmpeg is free software; you can redistribute it and/or
11 ;* modify it under the terms of the GNU Lesser General Public
12 ;* License as published by the Free Software Foundation; either
13 ;* version 2.1 of the License, or (at your option) any later version.
15 ;* FFmpeg is distributed in the hope that it will be useful,
16 ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;* Lesser General Public License for more details.
20 ;* You should have received a copy of the GNU Lesser General Public
21 ;* License along with FFmpeg; if not, write to the Free Software
22 ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 ;******************************************************************************
25 %include "libavutil/x86/x86util.asm"
29 pw_pixel_max: times 8 dw ((1 << 10)-1)
40 ; expands to [base],...,[base+7*stride]
41 %define PASS8ROWS(base, base3, stride, stride3) \
42 [base], [base+stride], [base+stride*2], [base3], \
43 [base3+stride], [base3+stride*2], [base3+stride3], [base3+stride*4]
45 ; in: 8 rows of 4 bytes in %4..%11
46 ; out: 4 rows of 8 words in m0..m3
47 %macro TRANSPOSE4x8B_LOAD 8
76 ; in: 4 rows of 8 words in m0..m3
77 ; out: 8 rows of 4 bytes in %1..%8
78 %macro TRANSPOSE8x4B_STORE 8
107 ; in: 8 rows of 4 words in %4..%11
108 ; out: 4 rows of 8 words in m0..m3
109 %macro TRANSPOSE4x8W_LOAD 8
130 punpckhqdq m1, m0, m4
132 punpckhqdq m3, m2, m6
137 ; in: 4 rows of 8 words in m0..m3
138 ; out: 8 rows of 4 words in %1..%8
139 %macro TRANSPOSE8x4W_STORE 8
140 pxor m5, m5; zeros reg
141 CLIPW m0, m5, [pw_pixel_max]
142 CLIPW m1, m5, [pw_pixel_max]
143 CLIPW m2, m5, [pw_pixel_max]
144 CLIPW m3, m5, [pw_pixel_max]
167 ; in: 8 rows of 8 bytes in %1..%8
168 ; out: 8 rows of 8 words in m0..m7
169 %macro TRANSPOSE8x8B_LOAD 8
190 punpckldq m1, m3, m9; 0, 1
191 punpckhdq m3, m9; 2, 3
193 punpckldq m5, m7, m4; 4, 5
194 punpckhdq m7, m4; 6, 7
198 punpcklbw m0, m1, m13; 0 in 16 bit
199 punpckhbw m1, m13; 1 in 16 bit
201 punpcklbw m2, m3, m13; 2
204 punpcklbw m4, m5, m13; 4
207 punpcklbw m6, m7, m13; 6
212 ; in: 8 rows of 8 words in m0..m8
213 ; out: 8 rows of 8 bytes in %1..%8
214 %macro TRANSPOSE8x8B_STORE 8
236 punpckhdq m10, m0, m4; 2, 3
237 punpckldq m0, m4; 0, 1
239 punpckldq m11, m8, m9; 4, 5
240 punpckhdq m8, m9; 6, 7
251 ; in: 8 rows of 8 words in %1..%8
252 ; out: 8 rows of 8 words in m0..m7
253 %macro TRANSPOSE8x8W_LOAD 8
262 TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8
265 ; in: 8 rows of 8 words in m0..m8
266 ; out: 8 rows of 8 words in %1..%8
267 %macro TRANSPOSE8x8W_STORE 8
268 TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8
271 CLIPW m0, m8, [pw_pixel_max]
272 CLIPW m1, m8, [pw_pixel_max]
273 CLIPW m2, m8, [pw_pixel_max]
274 CLIPW m3, m8, [pw_pixel_max]
275 CLIPW m4, m8, [pw_pixel_max]
276 CLIPW m5, m8, [pw_pixel_max]
277 CLIPW m6, m8, [pw_pixel_max]
278 CLIPW m7, m8, [pw_pixel_max]
296 pand %2, m11 ; and mask
297 pandn m10, m11, %1; and -mask
304 ; mask in %3, will be clobbered
305 %macro MASKED_COPY2 3
306 pand %2, %3 ; and mask
307 pandn %3, %1; and -mask
313 ; input in m0 ... m3 and tcs in tc (r2). Output in m1 and m2
314 %macro CHROMA_DEBLOCK_BODY 1
315 psubw m4, m2, m1; q0 - p0
316 psubw m5, m0, m3; p1 - q1
323 movd m4, [tcq+4]; tc1
325 shufps m6, m4, 0; tc0, tc1
326 pmullw m4, m6, [pw_m1]; -tc0, -tc1
332 psllw m4, %1-8; << (BIT_DEPTH - 8)
333 psllw m6, %1-8; << (BIT_DEPTH - 8)
336 paddw m1, m5; p0 + delta0
337 psubw m2, m5; q0 - delta0
340 ; input in m0 ... m7, betas in r2 tcs in r3. Output in m1...m6
341 %macro LUMA_DEBLOCK_BODY 2
345 ABS1 m10, m11 ; 0dp0, 0dp3 , 1dp0, 1dp3
350 ABS1 m11, m13 ; 0dq0, 0dq3 , 1dq0, 1dq3
355 movd m13, r11d; beta0
360 movd m14, r12d; beta1
362 pshufd m13, m14, 0; beta0, beta1
363 ;end beta calculations
365 paddw m9, m10, m11; 0d0, 0d3 , 1d0, 1d3
367 pshufhw m14, m9, 0x0f ;0b00001111; 0d3 0d3 0d0 0d0 in high
368 pshuflw m14, m14, 0x0f ;0b00001111; 1d3 1d3 1d0 1d0 in low
370 pshufhw m9, m9, 0xf0 ;0b11110000; 0d0 0d0 0d3 0d3
371 pshuflw m9, m9, 0xf0 ;0b11110000; 1d0 1d0 1d3 1d3
373 paddw m14, m9; 0d0+0d3, 1d0+1d3
376 pcmpgtw m15, m13, m14; beta0, beta1
377 movmskps r13, m15 ;filtering mask 0d0 + 0d3 < beta0 (bit 2 or 3) , 1d0 + 1d3 < beta1 (bit 0 or 1)
381 ;weak / strong decision compare to beta_2
382 psraw m15, m13, 2; beta >> 2
384 pcmpgtw m15, m8; (d0 << 1) < beta_2, (d3 << 1) < beta_2
386 ;end weak / strong decision
388 ; weak filter nd_p/q calculation
393 and r7, 0xffff; 1dp0 + 1dp3
396 and r8, 0xffff; 0dp0 + 0dp3
402 and r9, 0xffff; 1dq0 + 1dq3
405 and r10, 0xffff; 0dq0 + 0dq3
406 ; end calc for weak filter
418 pcmpeqd m11, [pd_1]; filtering mask
420 ;decide between strong and weak filtering
429 add r2d, r3d; tc0 + tc1
433 shufps m8, m9, 0; tc0, tc1
436 pavgw m8, m9; tc25 = ((tc * 5 + 1) >> 1)
437 ;end tc25 calculations
439 ;----beta_3 comparison-----
440 psubw m12, m0, m3; p3 - p0
441 ABS1 m12, m14; abs(p3 - p0)
443 psubw m15, m7, m4; q3 - q0
444 ABS1 m15, m14; abs(q3 - q0)
446 paddw m12, m15; abs(p3 - p0) + abs(q3 - q0)
448 pshufhw m12, m12, 0xf0 ;0b11110000;
449 pshuflw m12, m12, 0xf0 ;0b11110000;
451 psraw m13, 3; beta >> 3
454 and r14, r2; strong mask , beta_2 and beta_3 comparisons
455 ;----beta_3 comparison end-----
456 ;----tc25 comparison---
457 psubw m12, m3, m4; p0 - q0
458 ABS1 m12, m14; abs(p0 - q0)
460 pshufhw m12, m12, 0xf0 ;0b11110000;
461 pshuflw m12, m12, 0xf0 ;0b11110000;
463 pcmpgtw m8, m12; tc25 comparisons
465 and r14, r2; strong mask, beta_2, beta_3 and tc25 comparisons
466 ;----tc25 comparison end---
469 and r14, r2; strong mask, bits 2 and 0
471 pmullw m14, m9, [pw_m2]; -tc * 2
475 mov r2, r14; strong mask
477 movd m12, r14d; store to xmm for mask generation
480 movd m10, r2d; store to xmm for mask generation
481 or r14, r2; final strong mask, bits 1 and 0
485 pcmpeqd m10, [pd_1]; strong mask
487 mova m13, [pw_4]; 4 in every cell
488 pand m11, m10; combine filtering mask and strong mask
489 paddw m12, m2, m3; p1 + p0
490 paddw m12, m4; p1 + p0 + q0
492 psllw m12, 1; 2*p1 + 2*p0 + 2*q0
493 paddw m12, m1; p2 + 2*p1 + 2*p0 + 2*q0
494 paddw m12, m5; p2 + 2*p1 + 2*p0 + 2*q0 + q1
495 paddw m12, m13; p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4
496 psraw m12, 3; ((p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4) >> 3)
497 psubw m12, m3; ((p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4) >> 3) - p0
499 pminsw m12, m9; av_clip( , -2 * tc, 2 * tc)
502 paddw m15, m1, m10; p2 + p1 + p0 + q0
503 psrlw m13, 1; 2 in every cell
504 paddw m15, m13; p2 + p1 + p0 + q0 + 2
505 psraw m15, 2; (p2 + p1 + p0 + q0 + 2) >> 2
506 psubw m15, m2;((p2 + p1 + p0 + q0 + 2) >> 2) - p1
508 pminsw m15, m9; av_clip( , -2 * tc, 2 * tc)
511 paddw m8, m1, m0; p3 + p2
512 psllw m8, 1; 2*p3 + 2*p2
513 paddw m8, m1; 2*p3 + 3*p2
514 paddw m8, m10; 2*p3 + 3*p2 + p1 + p0 + q0
515 psllw m13, 1; 4 in every cell
516 paddw m8, m13; 2*p3 + 3*p2 + p1 + p0 + q0 + 4
517 psraw m8, 3; (2*p3 + 3*p2 + p1 + p0 + q0 + 4) >> 3
518 psubw m8, m1; ((2*p3 + 3*p2 + p1 + p0 + q0 + 4) >> 3) - p2
520 pminsw m8, m9; av_clip( , -2 * tc, 2 * tc)
524 paddw m8, m3, m4; p0 + q0
525 paddw m8, m5; p0 + q0 + q1
526 psllw m8, 1; 2*p0 + 2*q0 + 2*q1
527 paddw m8, m2; p1 + 2*p0 + 2*q0 + 2*q1
528 paddw m8, m6; p1 + 2*p0 + 2*q0 + 2*q1 + q2
529 paddw m8, m13; p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4
530 psraw m8, 3; (p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4) >>3
533 pminsw m8, m9; av_clip( , -2 * tc, 2 * tc)
537 paddw m15, m3, m4; p0 + q0
538 paddw m15, m5; p0 + q0 + q1
540 paddw m15, m6; p0 + q0 + q1 + q2
541 psrlw m13, 1; 2 in every cell
542 paddw m15, m13; p0 + q0 + q1 + q2 + 2
543 psraw m15, 2; (p0 + q0 + q1 + q2 + 2) >> 2
544 psubw m15, m5; ((p0 + q0 + q1 + q2 + 2) >> 2) - q1
546 pminsw m15, m9; av_clip( , -2 * tc, 2 * tc)
549 paddw m13, m7; q3 + 2
550 paddw m13, m6; q3 + q2 + 2
551 psllw m13, 1; 2*q3 + 2*q2 + 4
552 paddw m13, m6; 2*q3 + 3*q2 + 4
553 paddw m13, m10; 2*q3 + 3*q2 + q1 + q0 + p0 + 4
554 psraw m13, 3; (2*q3 + 3*q2 + q1 + q0 + p0 + 4) >> 3
555 psubw m13, m6; ((2*q3 + 3*q2 + q1 + q0 + p0 + 4) >> 3) - q2
557 pminsw m13, m9; av_clip( , -2 * tc, 2 * tc)
566 not r14; strong mask -> weak mask
567 and r14, r13; final weak filtering mask, bits 0 and 1
570 ; weak filtering mask
577 pcmpeqd m11, [pd_1]; filtering mask
582 shr r11, 3; ((beta0+(beta0>>1))>>3))
587 shr r12, 3; ((beta1+(beta1>>1))>>3))
590 psubw m12, m4, m3 ; q0 - p0
591 psllw m10, m12, 3; 8 * (q0 - p0)
592 paddw m12, m10 ; 9 * (q0 - p0)
594 psubw m10, m5, m2 ; q1 - p1
595 psllw m8, m10, 1; 2 * ( q1 - p1 )
596 paddw m10, m8; 3 * ( q1 - p1 )
597 psubw m12, m10; 9 * (q0 - p0) - 3 * ( q1 - p1 )
599 psraw m12, 4; >> 4 , delta0
600 PABSW m13, m12; abs(delta0)
603 psllw m10, m9, 2; 8 * tc
604 paddw m10, m9; 10 * tc
608 psraw m9, 1; tc * 2 -> tc
609 psraw m14, 1; -tc * 2 -> -tc
612 pminsw m12, m9; av_clip(delta0, -tc, tc)
614 psraw m9, 1; tc -> tc / 2
615 pmullw m14, m9, [pw_m1]; -tc / 2
617 pavgw m15, m1, m3; (p2 + p0 + 1) >> 1
618 psubw m15, m2; ((p2 + p0 + 1) >> 1) - p1
619 paddw m15, m12; ((p2 + p0 + 1) >> 1) - p1 + delta0
620 psraw m15, 1; (((p2 + p0 + 1) >> 1) - p1 + delta0) >> 1
622 pminsw m15, m9; av_clip(deltap1, -tc/2, tc/2)
626 movd m10, r11d; beta0
628 movd m13, r12d; beta1
630 shufps m10, m13, 0; betax0, betax1
632 movd m13, r7d; 1dp0 + 1dp3
633 movd m8, r8d; 0dp0 + 0dp3
639 ;end beta calculations
640 MASKED_COPY2 m2, m15, m8; write p1'
642 pavgw m8, m6, m4; (q2 + q0 + 1) >> 1
643 psubw m8, m5; ((q2 + q0 + 1) >> 1) - q1
644 psubw m8, m12; ((q2 + q0 + 1) >> 1) - q1 - delta0)
645 psraw m8, 1; ((q2 + q0 + 1) >> 1) - q1 - delta0) >> 1
647 pminsw m8, m9; av_clip(deltaq1, -tc/2, tc/2)
654 shufps m13, m15, 0; dq0 + dq3
656 pcmpgtw m10, m13; compare to ((beta+(beta>>1))>>3)
658 MASKED_COPY2 m5, m8, m10; write q1'
660 paddw m15, m3, m12 ; p0 + delta0
663 psubw m8, m4, m12 ; q0 - delta0
668 ;-----------------------------------------------------------------------------
669 ; void ff_hevc_v_loop_filter_chroma(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q)
670 ;-----------------------------------------------------------------------------
671 cglobal hevc_v_loop_filter_chroma_8, 3, 5, 7, pix, stride, tc, pix0, r3stride
673 lea r3strideq, [3*strideq]
676 TRANSPOSE4x8B_LOAD PASS8ROWS(pix0q, pixq, strideq, r3strideq)
677 CHROMA_DEBLOCK_BODY 8
678 TRANSPOSE8x4B_STORE PASS8ROWS(pix0q, pixq, strideq, r3strideq)
681 cglobal hevc_v_loop_filter_chroma_10, 3, 5, 7, pix, stride, tc, pix0, r3stride
683 lea r3strideq, [3*strideq]
686 TRANSPOSE4x8W_LOAD PASS8ROWS(pix0q, pixq, strideq, r3strideq)
687 CHROMA_DEBLOCK_BODY 10
688 TRANSPOSE8x4W_STORE PASS8ROWS(pix0q, pixq, strideq, r3strideq)
691 ;-----------------------------------------------------------------------------
692 ; void ff_hevc_h_loop_filter_chroma(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q
693 ;-----------------------------------------------------------------------------
694 cglobal hevc_h_loop_filter_chroma_8, 3, 4, 7, pix, stride, tc, pix0
699 movq m1, [pix0q+strideq]; p0
701 movq m3, [pixq+strideq]; q1
702 pxor m5, m5; zeros reg
707 CHROMA_DEBLOCK_BODY 8
708 packuswb m1, m1 ; p0' packed in bytes on low quadword
709 packuswb m2, m2 ; q0' packed in bytes on low quadword
710 movq [pix0q+strideq], m1
714 cglobal hevc_h_loop_filter_chroma_10, 3, 4, 7, pix, stride, tc, pix0
719 movu m1, [pix0q+strideq]; p0
721 movu m3, [pixq+strideq]; q1
722 CHROMA_DEBLOCK_BODY 10
723 pxor m5, m5; zeros reg
724 CLIPW m1, m5, [pw_pixel_max]
725 CLIPW m2, m5, [pw_pixel_max]
726 movu [pix0q+strideq], m1
732 ;-----------------------------------------------------------------------------
733 ; void ff_hevc_v_loop_filter_luma(uint8_t *_pix, ptrdiff_t _stride, int *_beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
734 ;-----------------------------------------------------------------------------
735 cglobal hevc_v_loop_filter_luma_8, 4, 15, 16, pix, stride, beta, tc
740 TRANSPOSE8x8B_LOAD PASS8ROWS(r6, r0, r1, r5)
741 LUMA_DEBLOCK_BODY 8, v
743 TRANSPOSE8x8B_STORE PASS8ROWS(r6, r0, r1, r5)
747 cglobal hevc_v_loop_filter_luma_10, 4, 15, 16, pix, stride, beta, tc
752 TRANSPOSE8x8W_LOAD PASS8ROWS(r6, pixq, strideq, r5)
753 LUMA_DEBLOCK_BODY 10, v
755 TRANSPOSE8x8W_STORE PASS8ROWS(r6, r0, r1, r5)
759 ;-----------------------------------------------------------------------------
760 ; void ff_hevc_h_loop_filter_luma(uint8_t *_pix, ptrdiff_t _stride, int *_beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
761 ;-----------------------------------------------------------------------------
762 cglobal hevc_h_loop_filter_luma_8, 4, 15, 16, pix, stride, beta, tc, count, pix0, src3stride
763 lea src3strideq, [3*strideq]
765 sub pix0q, src3strideq
767 movdqu m0, [pix0q]; p3
768 movdqu m1, [pix0q+strideq]; p2
769 movdqu m2, [pix0q+2*strideq]; p1
770 movdqu m3, [pix0q+src3strideq]; p0
771 movdqu m4, [pixq]; q0
772 movdqu m5, [pixq+strideq]; q1
773 movdqu m6, [pixq+2*strideq]; q2
774 movdqu m7, [pixq+src3strideq]; q3
784 LUMA_DEBLOCK_BODY 8, h
793 movq [r5+2*r1], m2; p1
797 movq [r0+2*r1], m6; q2
801 cglobal hevc_h_loop_filter_luma_10, 4, 15, 16, pix, stride, beta, tc, count, pix0, src3stride
802 lea src3strideq, [3*strideq]
804 sub pix0q, src3strideq
806 movdqu m0, [pix0q]; p3
807 movdqu m1, [pix0q+strideq]; p2
808 movdqu m2, [pix0q+2*strideq]; p1
809 movdqu m3, [pix0q+src3strideq]; p0
810 movdqu m4, [pixq]; q0
811 movdqu m5, [pixq+strideq]; q1
812 movdqu m6, [pixq+2*strideq]; q2
813 movdqu m7, [pixq+src3strideq]; q3
814 LUMA_DEBLOCK_BODY 10, h
816 pxor m8, m8; zeros reg
817 CLIPW m1, m8, [pw_pixel_max]
818 CLIPW m2, m8, [pw_pixel_max]
819 CLIPW m3, m8, [pw_pixel_max]
820 CLIPW m4, m8, [pw_pixel_max]
821 CLIPW m5, m8, [pw_pixel_max]
822 CLIPW m6, m8, [pw_pixel_max]
823 movdqu [pix0q+strideq], m1; p2
824 movdqu [pix0q+2*strideq], m2; p1
825 movdqu [pix0q+src3strideq], m3; p0
826 movdqu [pixq], m4; q0
827 movdqu [pixq+strideq], m5; q1
828 movdqu [pixq+2*strideq], m6; q2