/* * Copyright (c) 2011 Mans Rullgard * * 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 #include "config.h" #if HAVE_NEON && HAVE_INLINE_ASM #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 */