1/* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18/*
19------------------------------------------------------------------------------
20   PacketVideo Corp.
21   MP3 Decoder Library
22
23   Pathname: ./cpp/include/pv_mp3dec_fxd_op_c_equivalent.h
24
25     Date: 12/06/2005
26
27------------------------------------------------------------------------------
28 REVISION HISTORY
29
30 Description:
31------------------------------------------------------------------------------
32 INCLUDE DESCRIPTION
33
34------------------------------------------------------------------------------
35*/
36
37#ifndef PV_MP3DEC_FXD_OP_C_EQUIVALENT
38#define PV_MP3DEC_FXD_OP_C_EQUIVALENT
39
40
41#ifdef __cplusplus
42extern "C"
43{
44#endif
45
46#include "pvmp3_audio_type_defs.h"
47#define Qfmt_31(a)   (Int32)((float)(a)*0x7FFFFFFF)
48
49#define Qfmt15(x)   (Int16)((x)*((Int32)1<<15) + ((x)>=0?0.5F:-0.5F))
50
51
52
53    __attribute__((no_sanitize("integer")))
54    __inline int32 pv_abs(int32 a)
55    {
56        int32 b = (a < 0) ? -a : a;
57        return b;
58    }
59
60
61
62
63    __attribute__((no_sanitize("integer")))
64    __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
65    {
66        return (Int32)(((int64)(a) * b) >> 30);
67    }
68
69    __attribute__((no_sanitize("integer")))
70    __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
71    {
72        return (L_add + (Int32)(((int64)(a) * b) >> 30));
73    }
74
75    __attribute__((no_sanitize("integer")))
76    __inline Int32 fxp_mul32_Q32(const Int32 a, const Int32 b)
77    {
78        return (Int32)(((int64)(a) * b) >> 32);
79    }
80
81
82    __attribute__((no_sanitize("integer")))
83    __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
84    {
85        return (Int32)(((int64)(a) * b) >> 28);
86    }
87
88    __attribute__((no_sanitize("integer")))
89    __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
90    {
91        return (Int32)(((int64)(a) * b) >> 27);
92    }
93
94    __attribute__((no_sanitize("integer")))
95    __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
96    {
97        return (Int32)(((int64)(a) * b) >> 26);
98    }
99
100
101    __attribute__((no_sanitize("integer")))
102    __inline Int32 fxp_mac32_Q32(Int32 L_add, const Int32 a, const Int32 b)
103    {
104        return (L_add + (Int32)(((int64)(a) * b) >> 32));
105    }
106
107    __attribute__((no_sanitize("integer")))
108    __inline Int32 fxp_msb32_Q32(Int32 L_sub, const Int32 a, const Int32 b)
109    {
110        return (L_sub - ((Int32)(((int64)(a) * b) >> 32)));
111    }
112
113
114    __attribute__((no_sanitize("integer")))
115    __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
116    {
117        return (Int32)(((int64)(a) * b) >> 29);
118    }
119
120
121
122
123
124
125#ifdef __cplusplus
126}
127#endif
128
129
130#endif   /*  PV_MP3DEC_FXD_OP_C_EQUIVALENT  */
131
132
133
134