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author | Andreas Huber <andih@google.com> | 2009-12-08 15:40:06 -0800 |
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committer | Andreas Huber <andih@google.com> | 2009-12-10 12:23:55 -0800 |
commit | 4f1efc098cb5791c3e9f483f2af84aef70d2d0a0 (patch) | |
tree | a2873e84aed3eecb1198f85954e24cddb1bdc380 /media/libstagefright/codecs/amrnb/common/include/basic_op_arm_v5.h | |
parent | c54176addef15699a518b69cd6bbd40ffc95e72e (diff) | |
download | frameworks_av-4f1efc098cb5791c3e9f483f2af84aef70d2d0a0.zip frameworks_av-4f1efc098cb5791c3e9f483f2af84aef70d2d0a0.tar.gz frameworks_av-4f1efc098cb5791c3e9f483f2af84aef70d2d0a0.tar.bz2 |
Initial check in of AMR (NB and WB) decoders based on PV source code.
Diffstat (limited to 'media/libstagefright/codecs/amrnb/common/include/basic_op_arm_v5.h')
-rw-r--r-- | media/libstagefright/codecs/amrnb/common/include/basic_op_arm_v5.h | 440 |
1 files changed, 440 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrnb/common/include/basic_op_arm_v5.h b/media/libstagefright/codecs/amrnb/common/include/basic_op_arm_v5.h new file mode 100644 index 0000000..c939356 --- /dev/null +++ b/media/libstagefright/codecs/amrnb/common/include/basic_op_arm_v5.h @@ -0,0 +1,440 @@ +/* ------------------------------------------------------------------ + * 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_arm_v5.h + +------------------------------------------------------------------------------ + REVISION HISTORY + + Who: Date: + Description: + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + This file includes all the ARM-V5 based basicop.c functions. + +------------------------------------------------------------------------------ +*/ + +/*---------------------------------------------------------------------------- +; CONTINUE ONLY IF NOT ALREADY DEFINED +----------------------------------------------------------------------------*/ +#ifndef BASIC_OP_ARM_V5_H +#define BASIC_OP_ARM_V5_H + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "basicop_malloc.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: L_add + ------------------------------------------------------------------------------ + INPUT AND OUTPUT DEFINITIONS + + Inputs: + L_var1 = 32 bit long signed integer (Word32) whose value falls + in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. + + L_var2 = 32 bit long signed integer (Word32) whose value falls + in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. + + pOverflow = pointer to overflow (Flag) + + Outputs: + pOverflow -> 1 if the 32 bit add operation resulted in overflow + + Returns: + L_sum = 32-bit sum of L_var1 and L_var2 (Word32) + */ + + __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow) + { + Word32 result; + + OSCL_UNUSED_ARG(pOverflow); + __asm + { + QADD result, L_var1, L_var2 + } + return(result); + } + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: L_sub + ------------------------------------------------------------------------------ + INPUT AND OUTPUT DEFINITIONS + + Inputs: + L_var1 = 32 bit long signed integer (Word32) whose value falls + in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. + + L_var2 = 32 bit long signed integer (Word32) whose value falls + in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. + + pOverflow = pointer to overflow (Flag) + + Outputs: + pOverflow -> 1 if the 32 bit add operation resulted in overflow + + Returns: + L_diff = 32-bit difference of L_var1 and L_var2 (Word32) + */ + __inline Word32 L_sub(Word32 L_var1, Word32 L_var2, Flag *pOverflow) + { + Word32 result; + + OSCL_UNUSED_ARG(pOverflow); + + __asm + { + QSUB result, L_var1, L_var2 + } + + return(result); + + } + + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: L_mac + ------------------------------------------------------------------------------ + 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. + var1 = 16 bit short signed integer (Word16) whose value falls in + the range : 0xffff 8000 <= var1 <= 0x0000 7fff. + var2 = 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 add operation resulted in overflow + + Returns: + result = 32-bit result of L_var3 + (var1 * var2)(Word32) + */ + __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow) + { + Word32 result; + Word32 L_sum; + + OSCL_UNUSED_ARG(pOverflow); + + __asm {SMULBB result, var1, var2} + __asm {QDADD L_sum, L_var3, result} + return (L_sum); + } + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: L_mult + ------------------------------------------------------------------------------ + INPUT AND OUTPUT DEFINITIONS + + Inputs: + L_var1 = 16 bit short signed integer (Word16) whose value falls in + the range : 0xffff 8000 <= var1 <= 0x0000 7fff. + + L_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 add operation resulted in overflow + + Returns: + L_product = 32-bit product of L_var1 and L_var2 (Word32) + */ + __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow) + { + Word32 result; + Word32 product; + + OSCL_UNUSED_ARG(pOverflow); + + __asm + { + SMULBB product, var1, var2 + QADD result, product, product + } + + return (result); + } + + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: L_msu + ------------------------------------------------------------------------------ + 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. + + var1 = 16 bit short signed integer (Word16) whose value falls in + the range : 0xffff 8000 <= var1 <= 0x0000 7fff. + var2 = 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 operation resulted in overflow + + Returns: + result = 32-bit result of L_var3 - (var1 * var2) + */ + __inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow) + { + Word32 product; + Word32 result; + + OSCL_UNUSED_ARG(pOverflow); + + __asm + { + SMULBB product, var1, var2 + QDSUB result, L_var3, product + } + + return (result); + } + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: Mpy_32 + ------------------------------------------------------------------------------ + INPUT AND OUTPUT DEFINITIONS + + Inputs: + L_var1_hi = most significant word of first input (Word16). + L_var1_lo = least significant word of first input (Word16). + L_var2_hi = most significant word of second input (Word16). + L_var2_lo = least significant word of second input (Word16). + + pOverflow = pointer to overflow (Flag) + + Outputs: + pOverflow -> 1 if the 32 bit multiply operation resulted in overflow + + Returns: + L_product = 32-bit product of L_var1 and L_var2 (Word32) + */ + __inline Word32 Mpy_32(Word16 L_var1_hi, Word16 L_var1_lo, Word16 L_var2_hi, + Word16 L_var2_lo, Flag *pOverflow) + + { + + Word32 L_product; + Word32 L_sum; + Word32 product32; + + OSCL_UNUSED_ARG(pOverflow); + + __asm + { + SMULBB L_product, L_var1_hi, L_var2_hi + QDADD L_product, 0, L_product + SMULBB product32, L_var1_hi, L_var2_lo + } + product32 >>= 15; + __asm + { + QDADD L_sum, L_product, product32 + } + L_product = L_sum; + __asm + { + SMULBB product32, L_var1_lo, L_var2_hi + } + product32 >>= 15; + __asm + { + QDADD L_sum, L_product, product32 + } + return (L_sum); + } + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: Mpy_32_16 + ------------------------------------------------------------------------------ + INPUT AND OUTPUT DEFINITIONS + + Inputs: + L_var1_hi = most significant 16 bits of 32-bit input (Word16). + L_var1_lo = least significant 16 bits of 32-bit input (Word16). + var2 = 16-bit signed integer (Word16). + + pOverflow = pointer to overflow (Flag) + + Outputs: + pOverflow -> 1 if the 32 bit product operation resulted in overflow + + Returns: + product = 32-bit product of the 32-bit L_var1 and 16-bit var1 (Word32) + */ + __inline Word32 Mpy_32_16(Word16 L_var1_hi, + Word16 L_var1_lo, + Word16 var2, + Flag *pOverflow) + { + + Word32 L_product; + Word32 L_sum; + Word32 result; + + OSCL_UNUSED_ARG(pOverflow); + + __asm {SMULBB L_product, L_var1_hi, var2} + __asm {QDADD L_product, 0, L_product} + __asm {SMULBB result, L_var1_lo, var2} + result >>= 15; + __asm {QDADD L_sum, L_product, result} + return (L_sum); + } + + /* + ------------------------------------------------------------------------------ + FUNCTION NAME: mult + ------------------------------------------------------------------------------ + INPUT AND OUTPUT DEFINITIONS + + Inputs: + var1 = 16 bit short signed integer (Word16) whose value falls in + the range : 0xffff 8000 <= var1 <= 0x0000 7fff. + + var2 = 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 add operation resulted in overflow + + Returns: + product = 16-bit limited product of var1 and var2 (Word16) + */ + __inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow) + { + Word32 product; + + OSCL_UNUSED_ARG(pOverflow); + + __asm + { + SMULBB product, var1, var2 + MOV product, product, ASR #15 + CMP product, 0x7FFF + MOVGE product, 0x7FFF + } + + return ((Word16) product); + } + + __inline Word32 amrnb_fxp_mac_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3) + { + Word32 result; + __asm + { + smlabb result, L_var1, L_var2, L_var3 + } + return result; + } + + __inline Word32 amrnb_fxp_msu_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3) + { + Word32 result; + __asm + { + rsb L_var1, L_var1, #0 + smlabb result, L_var1, L_var2, L_var3 + } + return result; + } + + + /*---------------------------------------------------------------------------- + ; END + ----------------------------------------------------------------------------*/ +#ifdef __cplusplus +} +#endif + +#endif /* BASIC_OP_ARM_V5_H */ |