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109 lines
2.9 KiB
109 lines
2.9 KiB
;***************************************************************************** |
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;* SIMD-optimized MPEG encoding functions |
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;***************************************************************************** |
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;* Copyright (c) 2000, 2001 Fabrice Bellard |
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;* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
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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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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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;***************************************************************************** |
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%include "libavutil/x86/x86util.asm" |
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SECTION .text |
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; int ff_pix_sum16(const uint8_t *pix, int line_size) |
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; %1 = number of loops |
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; %2 = number of GPRs used |
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%macro PIX_SUM16 3 |
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cglobal pix_sum16, 2, %2, 6 |
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movsxdifnidn r1, r1d |
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mov r2, %1 |
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lea r3, [r1*3] |
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%if notcpuflag(xop) |
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pxor m5, m5 |
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%endif |
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pxor m4, m4 |
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.loop: |
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%if cpuflag(xop) |
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vphaddubq m0, [r0] |
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vphaddubq m1, [r0+r1] |
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vphaddubq m2, [r0+r1*2] |
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vphaddubq m3, [r0+r3] |
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%else |
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mova m0, [r0] |
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mova m1, [r0+r1] |
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mova m2, [r0+r1*2] |
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mova m3, [r0+r3] |
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psadbw m0, m5 |
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psadbw m1, m5 |
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psadbw m2, m5 |
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psadbw m3, m5 |
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%endif ; cpuflag(xop) |
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paddw m1, m0 |
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paddw m3, m2 |
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paddw m3, m1 |
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paddw m4, m3 |
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lea r0, [r0+r1*%3] |
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dec r2 |
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jne .loop |
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pshufd m0, m4, q0032 |
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paddd m4, m0 |
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movd eax, m4 |
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RET |
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%endmacro |
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INIT_XMM sse2 |
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PIX_SUM16 4, 4, 4 |
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%if HAVE_XOP_EXTERNAL |
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INIT_XMM xop |
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PIX_SUM16 4, 4, 4 |
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%endif |
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; int ff_pix_norm1(const uint8_t *pix, int line_size) |
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; %1 = number of xmm registers used |
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; %2 = number of loops |
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%macro PIX_NORM1 2 |
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cglobal pix_norm1, 2, 3, %1 |
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movsxdifnidn r1, r1d |
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mov r2, %2 |
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pxor m0, m0 |
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pxor m5, m5 |
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.loop: |
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mova m2, [r0+0] |
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mova m3, [r0+r1] |
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punpckhbw m1, m2, m0 |
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punpcklbw m2, m0 |
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punpckhbw m4, m3, m0 |
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punpcklbw m3, m0 |
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pmaddwd m1, m1 |
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pmaddwd m2, m2 |
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pmaddwd m3, m3 |
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pmaddwd m4, m4 |
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paddd m2, m1 |
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paddd m4, m3 |
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paddd m5, m2 |
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paddd m5, m4 |
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lea r0, [r0+r1*2] |
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dec r2 |
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jne .loop |
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HADDD m5, m1 |
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movd eax, m5 |
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RET |
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%endmacro |
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INIT_XMM sse2 |
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PIX_NORM1 6, 8 |
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