3 * MIPS Technologies, Inc., California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 * Author: Nedeljko Babic (nbabic@mips.com)
31 * adaptive and fixed codebook vector operations for ACELP-based codecs
34 * This file is part of FFmpeg.
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.
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.
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
53 * Reference: libavcodec/acelp_vectors.c
56 #include "libavcodec/acelp_vectors.h"
59 static 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
)
63 const float *a_end
= in_a
+ length
;
65 /* loop unrolled two times */
67 "blez %[length], ff_weighted_vector_sumf_end%= \n\t"
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 $f5, 4(%[out]) \n\t"
82 "addiu %[out], 8 \n\t"
83 "bne %[in_a], %[a_end], ff_weighted_vector_sumf_madd%= \n\t"
85 "ff_weighted_vector_sumf_end%=: \n\t"
87 : [out
] "+r" (out
), [in_a
] "+r" (in_a
), [in_b
] "+r" (in_b
)
88 : [weight_coeff_a
] "f" (weight_coeff_a
),
89 [weight_coeff_b
] "f" (weight_coeff_b
),
90 [length
] "r" (length
), [a_end
]"r"(a_end
)
91 : "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "memory"
94 #endif /* HAVE_INLINE_ASM */
96 void ff_acelp_vectors_init_mips(ACELPVContext
*c
)
99 c
->weighted_vector_sumf
= ff_weighted_vector_sumf_mips
;