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https://github.com/FFmpeg/FFmpeg.git
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3daa434a40
overall ffvhuff decoding speedup: 28% on core2, 25% on k8. Originally committed as revision 17059 to svn://svn.ffmpeg.org/ffmpeg/trunk
153 lines
3.8 KiB
NASM
153 lines
3.8 KiB
NASM
;******************************************************************************
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;* MMX optimized DSP utils
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;* Copyright (c) 2008 Loren Merritt
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "x86inc.asm"
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section .text align=16
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%macro PSWAPD_SSE 2
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pshufw %1, %2, 0x4e
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%endmacro
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%macro PSWAPD_3DN1 2
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movq %1, %2
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psrlq %1, 32
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punpckldq %1, %2
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%endmacro
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%macro FLOAT_TO_INT16_INTERLEAVE6 1
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; void ff_float_to_int16_interleave6_sse(int16_t *dst, const float **src, int len)
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cglobal float_to_int16_interleave6_%1, 2,7,0, dst, src, src1, src2, src3, src4, src5
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%ifdef ARCH_X86_64
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%define lend r10d
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mov lend, r2d
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%else
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%define lend dword r2m
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%endif
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mov src1q, [srcq+1*gprsize]
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mov src2q, [srcq+2*gprsize]
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mov src3q, [srcq+3*gprsize]
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mov src4q, [srcq+4*gprsize]
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mov src5q, [srcq+5*gprsize]
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mov srcq, [srcq]
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sub src1q, srcq
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sub src2q, srcq
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sub src3q, srcq
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sub src4q, srcq
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sub src5q, srcq
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.loop:
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cvtps2pi mm0, [srcq]
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cvtps2pi mm1, [srcq+src1q]
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cvtps2pi mm2, [srcq+src2q]
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cvtps2pi mm3, [srcq+src3q]
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cvtps2pi mm4, [srcq+src4q]
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cvtps2pi mm5, [srcq+src5q]
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packssdw mm0, mm3
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packssdw mm1, mm4
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packssdw mm2, mm5
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pswapd mm3, mm0
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punpcklwd mm0, mm1
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punpckhwd mm1, mm2
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punpcklwd mm2, mm3
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pswapd mm3, mm0
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punpckldq mm0, mm2
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punpckhdq mm2, mm1
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punpckldq mm1, mm3
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movq [dstq ], mm0
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movq [dstq+16], mm2
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movq [dstq+ 8], mm1
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add srcq, 8
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add dstq, 24
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sub lend, 2
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jg .loop
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emms
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RET
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%endmacro ; FLOAT_TO_INT16_INTERLEAVE6
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%define pswapd PSWAPD_SSE
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FLOAT_TO_INT16_INTERLEAVE6 sse
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%define cvtps2pi pf2id
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%define pswapd PSWAPD_3DN1
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FLOAT_TO_INT16_INTERLEAVE6 3dnow
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%undef pswapd
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FLOAT_TO_INT16_INTERLEAVE6 3dn2
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%undef cvtps2pi
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; void ff_add_hfyu_median_prediction_mmx2(uint8_t *dst, uint8_t *top, uint8_t *diff, int w, int *left, int *left_top)
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cglobal add_hfyu_median_prediction_mmx2, 6,6,0, dst, top, diff, w, left, left_top
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movq mm0, [topq]
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movq mm2, mm0
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movd mm4, [left_topq]
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psllq mm2, 8
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movq mm1, mm0
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por mm4, mm2
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movd mm3, [leftq]
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psubb mm0, mm4 ; t-tl
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add dstq, wq
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add topq, wq
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add diffq, wq
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neg wq
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jmp .skip
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.loop:
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movq mm4, [topq+wq]
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movq mm0, mm4
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psllq mm4, 8
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por mm4, mm1
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movq mm1, mm0 ; t
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psubb mm0, mm4 ; t-tl
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.skip:
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movq mm2, [diffq+wq]
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%assign i 0
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%rep 8
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movq mm4, mm0
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paddb mm4, mm3 ; t-tl+l
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movq mm5, mm3
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pmaxub mm3, mm1
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pminub mm5, mm1
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pminub mm3, mm4
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pmaxub mm3, mm5 ; median
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paddb mm3, mm2 ; +residual
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%if i==0
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movq mm7, mm3
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psllq mm7, 56
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%else
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movq mm6, mm3
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psrlq mm7, 8
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psllq mm6, 56
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por mm7, mm6
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%endif
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%if i<7
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psrlq mm0, 8
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psrlq mm1, 8
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psrlq mm2, 8
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%endif
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%assign i i+1
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%endrep
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movq [dstq+wq], mm7
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add wq, 8
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jl .loop
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movzx r2d, byte [dstq-1]
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mov [leftq], r2d
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movzx r2d, byte [topq-1]
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mov [left_topq], r2d
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RET
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