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/* ------------------------------------------------------------------
* Copyright (C) 1998-2009 PacketVideo
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied.
* See the License for the specific language governing permissions
* and limitations under the License.
* -------------------------------------------------------------------
*/
/****************************************************************************************
Portions of this file are derived from the following 3GPP standard:
3GPP TS 26.073
ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
Available from http://www.3gpp.org
(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
Permission to distribute, modify and use this file under the standard license
terms listed above has been obtained from the copyright holder.
****************************************************************************************/
/*
Pathname: ./include/basic_op.h
------------------------------------------------------------------------------
REVISION HISTORY
Description: Revised basic_op.h since the basicop2.c functions were split
up into separate source and header files. This function was
retained because there are legacy GSM AMR C functions that still
include this file. This file now includes the various basicop2
functions' header files instead of defining the function
prototypes.
Description: Including header files with platform specific inline assembly
instructions.
Who: Date:
Description:
------------------------------------------------------------------------------
INCLUDE DESCRIPTION
This file includes all the basicop2.c functions' header files.
------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
; CONTINUE ONLY IF NOT ALREADY DEFINED
----------------------------------------------------------------------------*/
#ifndef BASIC_OP_H
#define BASIC_OP_H
/*----------------------------------------------------------------------------
; INCLUDES
----------------------------------------------------------------------------*/
#include "basicop_malloc.h"
#if defined(PV_ARM_V5)
#include "basic_op_arm_v5.h"
#elif defined(PV_ARM_GCC_V5)
#include "basic_op_arm_gcc_v5.h"
#else
#include "basic_op_c_equivalent.h"
#endif
#include "add.h"
#include "div_s.h"
#include "div_32.h"
#include "extract_h.h"
#include "extract_l.h"
#include "l_deposit_h.h"
#include "l_deposit_l.h"
#include "l_shr_r.h"
#include "mult_r.h"
#include "norm_l.h"
#include "norm_s.h"
#include "round.h"
#include "shr_r.h"
#include "sub.h"
#include "shr.h"
#include "l_abs.h"
#include "l_negate.h"
#include "l_extract.h"
#include "l_abs.h"
/*--------------------------------------------------------------------------*/
#ifdef __cplusplus
extern "C"
{
#endif
/*----------------------------------------------------------------------------
; MACROS
; Define module specific macros here
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; DEFINES
; Include all pre-processor statements here.
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; EXTERNAL VARIABLES REFERENCES
; Declare variables used in this module but defined elsewhere
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; SIMPLE TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; ENUMERATED TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; STRUCTURES TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; GLOBAL FUNCTION DEFINITIONS
; Function Prototype declaration
----------------------------------------------------------------------------*/
/*
------------------------------------------------------------------------------
FUNCTION NAME: mac_32
------------------------------------------------------------------------------
INPUT AND OUTPUT DEFINITIONS
Inputs:
L_var3 = 32 bit long signed integer (Word32) whose value falls
in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
L_var1_hi = 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
L_var1_lo = 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
L_var2_hi = 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
L_var2_lo = 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
pOverflow = pointer to overflow (Flag)
Outputs:
pOverflow -> 1 if the 32 bit mac operation resulted in overflow
Returns:
L_var3 = 32-bit result of L_var3 + (L_var1 * L_var2)(Word32)
*/
static inline Word32 Mac_32(Word32 L_var3,
Word16 L_var1_hi,
Word16 L_var1_lo,
Word16 L_var2_hi,
Word16 L_var2_lo,
Flag *pOverflow)
{
Word16 product;
L_var3 = L_mac(L_var3, L_var1_hi, L_var2_hi, pOverflow);
product = mult(L_var1_hi, L_var2_lo, pOverflow);
L_var3 = L_mac(L_var3, product, 1, pOverflow);
product = mult(L_var1_lo, L_var2_hi, pOverflow);
L_var3 = L_mac(L_var3, product, 1, pOverflow);
return (L_var3);
}
/*
------------------------------------------------------------------------------
FUNCTION NAME: mac_32_16
------------------------------------------------------------------------------
INPUT AND OUTPUT DEFINITIONS
Inputs:
L_var3 = 32 bit long signed integer (Word32) whose value falls
in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
L_var1_hi = 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
L_var1_lo = 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
var2= 16 bit short signed integer (Word16) whose value falls in
the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
pOverflow = pointer to overflow (Flag)
Outputs:
pOverflow -> 1 if the 32 bit mac operation resulted in overflow
Returns:
L_var3 = 32-bit result of L_var3 + (L_var1 * var2)(Word32)
*/
static inline Word32 Mac_32_16(Word32 L_var3,
Word16 L_var1_hi,
Word16 L_var1_lo,
Word16 var2,
Flag *pOverflow)
{
Word16 product;
L_var3 = L_mac(L_var3, L_var1_hi, var2, pOverflow);
product = mult(L_var1_lo, var2, pOverflow);
L_var3 = L_mac(L_var3, product, 1, pOverflow);
return (L_var3);
}
/*----------------------------------------------------------------------------
Function Name : negate
Negate var1 with saturation, saturate in the case where input is -32768:
negate(var1) = sub(0,var1).
Inputs :
var1
16 bit short signed integer (Word16) whose value falls in the
range : 0x8000 <= var1 <= 0x7fff.
Outputs :
none
Return Value :
16 bit short signed integer (Word16) whose value falls in the
range : 0x8000 <= var_out <= 0x7fff.
----------------------------------------------------------------------------*/
static inline Word16 negate(Word16 var1)
{
return (((var1 == MIN_16) ? MAX_16 : -var1));
}
/*----------------------------------------------------------------------------
Function Name : shl
Arithmetically shift the 16 bit input var1 left var2 positions.Zero fill
the var2 LSB of the result. If var2 is negative, arithmetically shift
var1 right by -var2 with sign extension. Saturate the result in case of
underflows or overflows.
Inputs :
var1
16 bit short signed integer (Word16) whose value falls in the
range : 0x8000 <= var1 <= 0x7fff.
var2
16 bit short signed integer (Word16) whose value falls in the
range : 0x8000 <= var1 <= 0x7fff.
pOverflow : pointer to overflow (Flag)
Return Value :
var_out
16 bit short signed integer (Word16) whose value falls in the
range : 0x8000 <= var_out <= 0x7fff.
----------------------------------------------------------------------------*/
static inline Word16 shl(Word16 var1, Word16 var2, Flag *pOverflow)
{
Word16 var_out = 0;
OSCL_UNUSED_ARG(pOverflow);
if (var2 < 0)
{
var2 = -var2;
if (var2 < 15)
{
var_out = var1 >> var2;
}
}
else
{
var_out = var1 << var2;
if (var_out >> var2 != var1)
{
var_out = (var1 >> 15) ^ MAX_16;
}
}
return (var_out);
}
/*----------------------------------------------------------------------------
Function Name : L_shl
Arithmetically shift the 32 bit input L_var1 left var2 positions. Zero
fill the var2 LSB of the result. If var2 is negative, arithmetically
shift L_var1 right by -var2 with sign extension. Saturate the result in
case of underflows or overflows.
Inputs :
L_var1 32 bit long signed integer (Word32) whose value falls in the
range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
var2
16 bit short signed integer (Word16) whose value falls in the
range : 8000 <= var2 <= 7fff.
pOverflow : pointer to overflow (Flag)
Return Value :
32 bit long signed integer (Word32) whose value falls in the
range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
----------------------------------------------------------------------------*/
static inline Word32 L_shl(Word32 L_var1, Word16 var2, Flag *pOverflow)
{
Word32 L_var_out = 0;
OSCL_UNUSED_ARG(pOverflow);
if (var2 > 0)
{
L_var_out = L_var1 << var2;
if (L_var_out >> var2 != L_var1)
{
L_var_out = (L_var1 >> 31) ^ MAX_32;
}
}
else
{
var2 = -var2;
if (var2 < 31)
{
L_var_out = L_var1 >> var2;
}
}
return (L_var_out);
}
/*----------------------------------------------------------------------------
Function Name : L_shr
Arithmetically shift the 32 bit input L_var1 right var2 positions with
sign extension. If var2 is negative, arithmetically shift L_var1 left
by -var2 and zero fill the -var2 LSB of the result. Saturate the result
in case of underflows or overflows.
Inputs :
L_var1 32 bit long signed integer (Word32) whose value falls in the
range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
var2
16 bit short signed integer (Word16) whose value falls in the
range : 8000 <= var2 <= 7fff.
pOverflow : pointer to overflow (Flag)
Return Value :
32 bit long signed integer (Word32) whose value falls in the
range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
----------------------------------------------------------------------------*/
static inline Word32 L_shr(Word32 L_var1, Word16 var2, Flag *pOverflow)
{
Word32 L_var_out = 0;
OSCL_UNUSED_ARG(pOverflow);
if (var2 > 0)
{
if (var2 < 31)
{
L_var_out = L_var1 >> var2;
}
}
else
{
var2 = -var2;
L_var_out = L_var1 << (var2) ;
if ((L_var_out >> (var2)) != L_var1)
{
L_var_out = (L_var1 >> 31) ^ MAX_32;
}
}
return (L_var_out);
}
/*----------------------------------------------------------------------------
Function Name : abs_s
Absolute value of var1; abs_s(-32768) = 32767.
Inputs :
var1
16 bit short signed integer (Word16) whose value falls in the
range : 0x8000 <= var1 <= 0x7fff.
pOverflow : pointer to overflow (Flag)
Outputs :
none
Return Value :
16 bit short signed integer (Word16) whose value falls in the
range : 0x0000 <= var_out <= 0x7fff.
----------------------------------------------------------------------------*/
static inline Word16 abs_s(Word16 var1)
{
Word16 y = var1 - (var1 < 0);
y = y ^(y >> 15);
return (y);
}
/*----------------------------------------------------------------------------
; END
----------------------------------------------------------------------------*/
#ifdef __cplusplus
}
#endif
#endif /* BASIC_OP_H */
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