| /*---------------------------------------------------------------------------- |
| * |
| * File: |
| * eas_wtsynth.h |
| * |
| * Contents and purpose: |
| * This file defines the interface for synthesizer engine |
| * |
| * Copyright Sonic Network Inc. 2004 |
| |
| * 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. |
| * |
| *---------------------------------------------------------------------------- |
| * Revision Control: |
| * $Revision: 82 $ |
| * $Date: 2006-07-10 11:45:19 -0700 (Mon, 10 Jul 2006) $ |
| *---------------------------------------------------------------------------- |
| */ |
| |
| #ifndef _EAS_WTSYNTH_H |
| #define _EAS_WTSYNTH_H |
| |
| #include "eas_sndlib.h" |
| #include "eas_wtengine.h" |
| |
| /* adjust the filter cutoff frequency to the sample rate */ |
| #if defined (_SAMPLE_RATE_8000) |
| #define FILTER_CUTOFF_FREQ_ADJUST 0 |
| #elif defined (_SAMPLE_RATE_16000) |
| #define FILTER_CUTOFF_FREQ_ADJUST 1200 |
| #elif defined (_SAMPLE_RATE_20000) |
| #define FILTER_CUTOFF_FREQ_ADJUST 1586 |
| #elif defined (_SAMPLE_RATE_22050) |
| #define FILTER_CUTOFF_FREQ_ADJUST 1756 |
| #elif defined (_SAMPLE_RATE_24000) |
| #define FILTER_CUTOFF_FREQ_ADJUST 1902 |
| #elif defined (_SAMPLE_RATE_32000) |
| #define FILTER_CUTOFF_FREQ_ADJUST 2400 |
| #elif defined (_SAMPLE_RATE_44100) |
| #define FILTER_CUTOFF_FREQ_ADJUST 2956 |
| #elif defined (_SAMPLE_RATE_48000) |
| #define FILTER_CUTOFF_FREQ_ADJUST 3102 |
| #else |
| #error "_SAMPLE_RATE_XXXXX must be defined to valid rate" |
| #endif |
| |
| /* function prototypes */ |
| void WT_UpdateLFO (S_LFO_CONTROL *pLFO, EAS_I16 phaseInc); |
| |
| #if defined(_FILTER_ENABLED) || defined(DLS_SYNTHESIZER) |
| void WT_SetFilterCoeffs (S_WT_INT_FRAME *pIntFrame, EAS_I32 cutoff, EAS_I32 resonance); |
| #endif |
| |
| #endif |
| |
| |
