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34 lines
1.3 KiB
34 lines
1.3 KiB
;****************************************************************************** |
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;* x86 utility macros for libavresample |
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;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> |
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;* |
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;* This file is part of Libav. |
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;* |
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;* Libav 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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;* Libav 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 Libav; 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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%macro S16_TO_S32_SX 2 ; src/low dst, high dst |
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%if cpuflag(sse4) |
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pmovsxwd m%2, m%1 |
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psrldq m%1, 8 |
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pmovsxwd m%1, m%1 |
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SWAP %1, %2 |
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%else |
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punpckhwd m%2, m%1 |
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punpcklwd m%1, m%1 |
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psrad m%2, 16 |
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psrad m%1, 16 |
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%endif |
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%endmacro
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