| /* ------------------------------------------------------------------ |
| * 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 */ |
| |
| |
