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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 */
+
+
generated by cgit v1.1 at 2024-05-28 19:06:55 +0000