2 * LIBOIL - Library of Optimized Inner Loops
3 * Copyright (c) 2001,2003,2004 David A. Schleef <ds@schleef.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
27 //Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
32 #include <liboil/liboilfunction.h>
39 conv_f64_s16_table(double *dest, int dest_stride, const short *src,
40 int src_stride, int n)
42 static double ints_high[256];
43 static double ints_low[256];
49 ints_high[i]=256.0*((i<128)?i:i-256);
56 idx = (unsigned short)*src;
57 *dest = ints_high[(idx>>8)] + ints_low[(idx&0xff)];
58 OIL_INCREMENT(dest, dest_stride);
59 OIL_INCREMENT(src, src_stride);
63 idx = (unsigned short)*src;
64 *dest = ints_high[(idx>>8)] + ints_low[(idx&0xff)];
65 OIL_INCREMENT(dest, dest_stride);
66 OIL_INCREMENT(src, src_stride);
67 idx = (unsigned short)*src;
68 *dest = ints_high[(idx>>8)] + ints_low[(idx&0xff)];
69 OIL_INCREMENT(dest, dest_stride);
70 OIL_INCREMENT(src, src_stride);
73 OIL_DEFINE_IMPL(conv_f64_s16_table, conv_f64_s16);
76 conv_f32_s16_table(float *dest, int dest_stride, const short *src,
77 int src_stride, int n)
79 static float ints_high[256];
80 static float ints_low[256];
86 ints_high[i]=256.0*((i<128)?i:i-256);
93 idx = (unsigned short)*src;
94 *dest = ints_high[(idx>>8)] + ints_low[(idx&0xff)];
95 OIL_INCREMENT(dest, dest_stride);
96 OIL_INCREMENT(src, src_stride);
100 idx = (unsigned short)*src;
101 *dest = ints_high[(idx>>8)] + ints_low[(idx&0xff)];
102 OIL_INCREMENT(dest, dest_stride);
103 OIL_INCREMENT(src, src_stride);
104 idx = (unsigned short)*src;
105 *dest = ints_high[(idx>>8)] + ints_low[(idx&0xff)];
106 OIL_INCREMENT(dest, dest_stride);
107 OIL_INCREMENT(src, src_stride);
110 OIL_DEFINE_IMPL(conv_f32_s16_table, conv_f32_s16);
118 OilFunctionImpl* __oil_function_impl_conv_f64_s16_table() {
119 return &_oil_function_impl_conv_f64_s16_table;
125 OilFunctionImpl* __oil_function_impl_conv_f32_s16_table() {
126 return &_oil_function_impl_conv_f32_s16_table;