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https://github.com/FFmpeg/FFmpeg.git
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6feea076e9
x64 always has MMX, MMXEXT, SSE and SSE2 and this means that some functions for MMX, MMXEXT and 3dnow are always overridden by other functions (unless one e.g. explicitly disables SSE2) for x64. So given that the only systems that benefit from ff_scalarproduct_and_madd_int16_mmxext are truely ancient 32bit x86s it is removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/*
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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/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/lossless_audiodsp.h"
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int32_t ff_scalarproduct_and_madd_int16_sse2(int16_t *v1, const int16_t *v2,
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const int16_t *v3,
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int order, int mul);
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int32_t ff_scalarproduct_and_madd_int16_ssse3(int16_t *v1, const int16_t *v2,
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const int16_t *v3,
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int order, int mul);
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int32_t ff_scalarproduct_and_madd_int32_sse4(int16_t *v1, const int32_t *v2,
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const int16_t *v3,
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int order, int mul);
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av_cold void ff_llauddsp_init_x86(LLAudDSPContext *c)
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{
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#if HAVE_X86ASM
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_SSE2(cpu_flags))
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c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_sse2;
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if (EXTERNAL_SSSE3(cpu_flags) &&
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!(cpu_flags & (AV_CPU_FLAG_SSE42 | AV_CPU_FLAG_3DNOW))) // cachesplit
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c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_ssse3;
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if (EXTERNAL_SSE4(cpu_flags))
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c->scalarproduct_and_madd_int32 = ff_scalarproduct_and_madd_int32_sse4;
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#endif
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}
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