1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
18 /****************************************************************************************
19 Portions of this file are derived from the following 3GPP standard:
22 ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23 Available from http://www.3gpp.org
25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26 Permission to distribute, modify and use this file under the standard license
27 terms listed above has been obtained from the copyright holder.
28 ****************************************************************************************/
33 ------------------------------------------------------------------------------
36 This file contains the prototype declaration for Pow2() function.
38 ------------------------------------------------------------------------------
41 /*----------------------------------------------------------------------------
42 ; CONTINUE ONLY IF NOT ALREADY DEFINED
43 ----------------------------------------------------------------------------*/
47 /*----------------------------------------------------------------------------
49 ----------------------------------------------------------------------------*/
52 /*--------------------------------------------------------------------------*/
58 /*----------------------------------------------------------------------------
60 ; Define module specific macros here
61 ----------------------------------------------------------------------------*/
63 /*----------------------------------------------------------------------------
65 ; Include all pre-processor statements here.
66 ----------------------------------------------------------------------------*/
68 /*----------------------------------------------------------------------------
69 ; EXTERNAL VARIABLES REFERENCES
70 ; Declare variables used in this module but defined elsewhere
71 ----------------------------------------------------------------------------*/
72 extern const Word16 pow2_tbl[];
73 /*----------------------------------------------------------------------------
75 ----------------------------------------------------------------------------*/
77 /*----------------------------------------------------------------------------
78 ; ENUMERATED TYPEDEF'S
79 ----------------------------------------------------------------------------*/
81 /*----------------------------------------------------------------------------
82 ; STRUCTURES TYPEDEF'S
83 ----------------------------------------------------------------------------*/
85 /*----------------------------------------------------------------------------
86 ; GLOBAL FUNCTION DEFINITIONS
87 ; Function Prototype declaration
88 ----------------------------------------------------------------------------*/
90 OSCL_IMPORT_REF Word32 Pow2(
91 /* (o) : result (range: 0<=val<=0x7fffffff) */
92 Word16 exponent, /* (i) : Integer part. (range: 0<=val<=30) */
93 Word16 fraction, /* (i) : Fractional part. (range: 0.0<=val<1.0) */
94 Flag *pOverflow /* (i/o) : overflow flag */
97 /*----------------------------------------------------------------------------
99 ----------------------------------------------------------------------------*/
104 #endif /* _POW2_H_ */