59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/*
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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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#include "config.h"
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#include "libavutil/x86/asm.h"
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#include "audiodsp.h"
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#if HAVE_INLINE_ASM
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void ff_vector_clipf_sse(float *dst, const float *src,
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float min, float max, int len)
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{
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x86_reg i = (len - 16) * 4;
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__asm__ volatile (
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"movss %3, %%xmm4 \n\t"
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"movss %4, %%xmm5 \n\t"
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"shufps $0, %%xmm4, %%xmm4 \n\t"
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"shufps $0, %%xmm5, %%xmm5 \n\t"
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"1: \n\t"
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"movaps (%2, %0), %%xmm0 \n\t" // 3/1 on intel
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"movaps 16(%2, %0), %%xmm1 \n\t"
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"movaps 32(%2, %0), %%xmm2 \n\t"
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"movaps 48(%2, %0), %%xmm3 \n\t"
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"maxps %%xmm4, %%xmm0 \n\t"
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"maxps %%xmm4, %%xmm1 \n\t"
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"maxps %%xmm4, %%xmm2 \n\t"
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"maxps %%xmm4, %%xmm3 \n\t"
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"minps %%xmm5, %%xmm0 \n\t"
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"minps %%xmm5, %%xmm1 \n\t"
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"minps %%xmm5, %%xmm2 \n\t"
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"minps %%xmm5, %%xmm3 \n\t"
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"movaps %%xmm0, (%1, %0) \n\t"
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"movaps %%xmm1, 16(%1, %0) \n\t"
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"movaps %%xmm2, 32(%1, %0) \n\t"
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"movaps %%xmm3, 48(%1, %0) \n\t"
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"sub $64, %0 \n\t"
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"jge 1b \n\t"
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: "+&r" (i)
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: "r" (dst), "r" (src), "m" (min), "m" (max)
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: "memory");
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}
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#endif /* HAVE_INLINE_ASM */
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