1/* 2 * Copyright (c) 2012 3 * MIPS Technologies, Inc., California. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its 14 * contributors may be used to endorse or promote products derived from 15 * this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * Author: Nedeljko Babic (nbabic@mips.com) 30 * 31 * adaptive and fixed codebook vector operations for ACELP-based codecs 32 * optimized for MIPS 33 * 34 * This file is part of FFmpeg. 35 * 36 * FFmpeg is free software; you can redistribute it and/or 37 * modify it under the terms of the GNU Lesser General Public 38 * License as published by the Free Software Foundation; either 39 * version 2.1 of the License, or (at your option) any later version. 40 * 41 * FFmpeg is distributed in the hope that it will be useful, 42 * but WITHOUT ANY WARRANTY; without even the implied warranty of 43 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 44 * Lesser General Public License for more details. 45 * 46 * You should have received a copy of the GNU Lesser General Public 47 * License along with FFmpeg; if not, write to the Free Software 48 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 49 */ 50 51/** 52 * @file 53 * Reference: libavcodec/acelp_vectors.c 54 */ 55#include "config.h" 56#include "libavcodec/acelp_vectors.h" 57 58#if HAVE_INLINE_ASM 59static void ff_weighted_vector_sumf_mips( 60 float *out, const float *in_a, const float *in_b, 61 float weight_coeff_a, float weight_coeff_b, int length) 62{ 63 const float *a_end = in_a + length; 64 65 /* loop unrolled two times */ 66 __asm__ volatile ( 67 "blez %[length], ff_weighted_vector_sumf_end%= \n\t" 68 69 "ff_weighted_vector_sumf_madd%=: \n\t" 70 "lwc1 $f0, 0(%[in_a]) \n\t" 71 "lwc1 $f3, 4(%[in_a]) \n\t" 72 "lwc1 $f1, 0(%[in_b]) \n\t" 73 "lwc1 $f4, 4(%[in_b]) \n\t" 74 "mul.s $f2, %[weight_coeff_a], $f0 \n\t" 75 "mul.s $f5, %[weight_coeff_a], $f3 \n\t" 76 "madd.s $f2, $f2, %[weight_coeff_b], $f1 \n\t" 77 "madd.s $f5, $f5, %[weight_coeff_b], $f4 \n\t" 78 "addiu %[in_a], 8 \n\t" 79 "addiu %[in_b], 8 \n\t" 80 "swc1 $f2, 0(%[out]) \n\t" 81 "swc1 $f5, 4(%[out]) \n\t" 82 "addiu %[out], 8 \n\t" 83 "bne %[in_a], %[a_end], ff_weighted_vector_sumf_madd%= \n\t" 84 85 "ff_weighted_vector_sumf_end%=: \n\t" 86 87 : [out] "+r" (out), [in_a] "+r" (in_a), [in_b] "+r" (in_b) 88 : [weight_coeff_a] "f" (weight_coeff_a), 89 [weight_coeff_b] "f" (weight_coeff_b), 90 [length] "r" (length), [a_end]"r"(a_end) 91 : "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "memory" 92 ); 93} 94#endif /* HAVE_INLINE_ASM */ 95 96void ff_acelp_vectors_init_mips(ACELPVContext *c) 97{ 98#if HAVE_INLINE_ASM 99 c->weighted_vector_sumf = ff_weighted_vector_sumf_mips; 100#endif 101} 102