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41 lines
1.4 KiB
41 lines
1.4 KiB
;****************************************************************************** |
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;* SIMD-optimized SVQ1 encoder functions |
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;* Copyright (c) 2007 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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;* 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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INIT_XMM sse2 |
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cglobal ssd_int8_vs_int16, 3, 3, 3, pix1, pix2, size |
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pxor m0, m0 |
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.loop: |
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sub sizeq, 8 |
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movq m1, [pix1q + sizeq] |
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mova m2, [pix2q + sizeq*2] |
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punpcklbw m1, m1 |
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psraw m1, 8 |
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psubw m2, m1 |
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pmaddwd m2, m2 |
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paddd m0, m2 |
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jg .loop |
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HADDD m0, m1 |
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movd eax, m0 |
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RET
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