Dave Sparks | 56c99cd | 2009-08-24 17:35:45 -0700 | [diff] [blame] | 1 | /*---------------------------------------------------------------------------- |
| 2 | * |
| 3 | * File: |
| 4 | * eas_wtsynth.h |
| 5 | * |
| 6 | * Contents and purpose: |
| 7 | * This file defines the interface for synthesizer engine |
| 8 | * |
| 9 | * Copyright Sonic Network Inc. 2004 |
The Android Open Source Project | 7df3010 | 2009-03-03 19:30:38 -0800 | [diff] [blame] | 10 | |
| 11 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 12 | * you may not use this file except in compliance with the License. |
| 13 | * You may obtain a copy of the License at |
| 14 | * |
| 15 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 16 | * |
| 17 | * Unless required by applicable law or agreed to in writing, software |
| 18 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 19 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 20 | * See the License for the specific language governing permissions and |
| 21 | * limitations under the License. |
Dave Sparks | 56c99cd | 2009-08-24 17:35:45 -0700 | [diff] [blame] | 22 | * |
| 23 | *---------------------------------------------------------------------------- |
| 24 | * Revision Control: |
| 25 | * $Revision: 82 $ |
| 26 | * $Date: 2006-07-10 11:45:19 -0700 (Mon, 10 Jul 2006) $ |
| 27 | *---------------------------------------------------------------------------- |
| 28 | */ |
| 29 | |
| 30 | #ifndef _EAS_WTSYNTH_H |
| 31 | #define _EAS_WTSYNTH_H |
| 32 | |
| 33 | #include "eas_sndlib.h" |
| 34 | #include "eas_wtengine.h" |
| 35 | |
| 36 | /* adjust the filter cutoff frequency to the sample rate */ |
| 37 | #if defined (_SAMPLE_RATE_8000) |
| 38 | #define FILTER_CUTOFF_FREQ_ADJUST 0 |
| 39 | #elif defined (_SAMPLE_RATE_16000) |
| 40 | #define FILTER_CUTOFF_FREQ_ADJUST 1200 |
| 41 | #elif defined (_SAMPLE_RATE_20000) |
| 42 | #define FILTER_CUTOFF_FREQ_ADJUST 1586 |
| 43 | #elif defined (_SAMPLE_RATE_22050) |
| 44 | #define FILTER_CUTOFF_FREQ_ADJUST 1756 |
| 45 | #elif defined (_SAMPLE_RATE_24000) |
| 46 | #define FILTER_CUTOFF_FREQ_ADJUST 1902 |
| 47 | #elif defined (_SAMPLE_RATE_32000) |
| 48 | #define FILTER_CUTOFF_FREQ_ADJUST 2400 |
| 49 | #elif defined (_SAMPLE_RATE_44100) |
| 50 | #define FILTER_CUTOFF_FREQ_ADJUST 2956 |
| 51 | #elif defined (_SAMPLE_RATE_48000) |
| 52 | #define FILTER_CUTOFF_FREQ_ADJUST 3102 |
| 53 | #else |
| 54 | #error "_SAMPLE_RATE_XXXXX must be defined to valid rate" |
| 55 | #endif |
| 56 | |
| 57 | /* function prototypes */ |
| 58 | void WT_UpdateLFO (S_LFO_CONTROL *pLFO, EAS_I16 phaseInc); |
| 59 | |
| 60 | #if defined(_FILTER_ENABLED) || defined(DLS_SYNTHESIZER) |
| 61 | void WT_SetFilterCoeffs (S_WT_INT_FRAME *pIntFrame, EAS_I32 cutoff, EAS_I32 resonance); |
| 62 | #endif |
| 63 | |
| 64 | #endif |
| 65 | |
| 66 | |