| Chisato Kenmochi | 9470443 | 2017-01-10 11:56:48 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2003 - 2016 Sony Corporation |
| 3 | * |
| 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 |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 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 express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef _FIXP_LDAC_H |
| 18 | #define _FIXP_LDAC_H |
| 19 | |
| 20 | /*************************************************************************************************** |
| 21 | Macro Definitions |
| 22 | ***************************************************************************************************/ |
| 23 | |
| 24 | #define LDAC_MAX_32BIT ((INT32)0x7fffffffL) |
| 25 | #define LDAC_MIN_32BIT ((INT32)0x80000000L) |
| 26 | |
| 27 | #define LDAC_C_BLKFLT 31 |
| 28 | |
| 29 | #define LDAC_Q_SETPCM 15 |
| 30 | |
| 31 | #define LDAC_Q_MDCT_WIN 30 |
| 32 | #define LDAC_Q_MDCT_COS 31 |
| 33 | #define LDAC_Q_MDCT_SIN 31 |
| 34 | |
| 35 | #define LDAC_Q_NORM1 15 |
| 36 | #define LDAC_Q_NORM2 31 |
| 37 | |
| 38 | #define LDAC_Q_QUANT1 47 |
| 39 | #define LDAC_Q_QUANT2 0 |
| 40 | #define LDAC_Q_QUANT3 15 |
| 41 | #define LDAC_Q_QUANT4 47 |
| 42 | |
| 43 | #define LDAC_Q_DEQUANT1 0 |
| 44 | #define LDAC_Q_DEQUANT2 0 |
| 45 | #define LDAC_Q_DEQUANT3 31 |
| 46 | |
| 47 | #define LDAC_Q_NORM (15+(LDAC_Q_NORM2-LDAC_Q_NORM1)) |
| 48 | |
| 49 | /*************************************************************************************************** |
| 50 | Function Declarations |
| 51 | ***************************************************************************************************/ |
| 52 | /* func_fixp_ldac.c */ |
| 53 | DECLFUNC INT32 sftrnd_ldac(INT32, int); |
| 54 | #define lsft_ldac(x, n) ((x) << (n)) |
| 55 | #define rsft_ldac(x, n) ((x) >> (n)) |
| 56 | #define rsft_ro_ldac(x, n) (((x) + (1 << (n-1))) >> (n)) |
| 57 | |
| 58 | #define lsftrnd_ldac(x, n) (INT32)((INT64)(x) << (-(n))) |
| 59 | #define rsftrnd_ldac(x, n) (INT32)(((INT64)(x) + ((INT64)1 << ((n)-1))) >> (n)) |
| 60 | #define mul_lsftrnd_ldac(x, y, n) (INT32)(((INT64)(x) * (INT64)(y)) << (-(n))) |
| 61 | #define mul_rsftrnd_ldac(x, y, n) (INT32)((((INT64)(x) * (INT64)(y)) + ((INT64)1 << ((n)-1))) >> (n)) |
| 62 | |
| 63 | DECLFUNC int get_bit_length_ldac(INT32); |
| 64 | DECLFUNC INT32 get_absmax_ldac(INT32 *, int); |
| 65 | |
| 66 | #endif /* _FIXP_LDAC_H */ |
| 67 | |