mirror of https://github.com/FFmpeg/FFmpeg.git
Originally committed as revision 14751 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
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;****************************************************************************** |
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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 ff_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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