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56 lines
2.2 KiB
56 lines
2.2 KiB
/* |
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* Format Conversion Utils |
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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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* MMX optimization by Nick Kurshev <nickols_k@mail.ru> |
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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/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/x86/asm.h" |
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#include "libavutil/x86/cpu.h" |
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#include "libavcodec/fmtconvert.h" |
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#if HAVE_YASM |
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void ff_int32_to_float_fmul_scalar_sse (float *dst, const int32_t *src, float mul, int len); |
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void ff_int32_to_float_fmul_scalar_sse2(float *dst, const int32_t *src, float mul, int len); |
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void ff_int32_to_float_fmul_array8_sse (FmtConvertContext *c, float *dst, const int32_t *src, |
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const float *mul, int len); |
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void ff_int32_to_float_fmul_array8_sse2(FmtConvertContext *c, float *dst, const int32_t *src, |
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const float *mul, int len); |
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#endif /* HAVE_YASM */ |
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av_cold void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx) |
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{ |
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#if HAVE_YASM |
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int cpu_flags = av_get_cpu_flags(); |
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if (EXTERNAL_SSE(cpu_flags)) { |
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c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse; |
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c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_sse; |
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} |
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if (EXTERNAL_SSE2(cpu_flags)) { |
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c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse2; |
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c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_sse2; |
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} |
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#endif /* HAVE_YASM */ |
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}
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