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/*
* Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_ARM_DCA_H
#define AVCODEC_ARM_DCA_H
#include <stdint.h>
#include "config.h"
#if HAVE_NEON && HAVE_INLINE_ASM && HAVE_ASM_MOD_Y
#define int8x8_fmul_int32 int8x8_fmul_int32
static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
{
__asm__ ("vcvt.f32.s32 %2, %2, #4 \n"
"vld1.8 {d0}, [%1,:64] \n"
"vmovl.s8 q0, d0 \n"
"vmovl.s16 q1, d1 \n"
"vmovl.s16 q0, d0 \n"
"vcvt.f32.s32 q0, q0 \n"
"vcvt.f32.s32 q1, q1 \n"
"vmul.f32 q0, q0, %y2 \n"
"vmul.f32 q1, q1, %y2 \n"
"vst1.32 {q0-q1}, [%m0,:128] \n"
: "=Um"(*(float (*)[8])dst)
: "r"(src), "x"(scale)
: "d0", "d1", "d2", "d3");
}
#endif
#endif /* AVCODEC_ARM_DCA_H */
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