| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2005 Stepan Moskovchenko |
| * |
| * All files in this archive are subject to the GNU General Public License. |
| * See the file COPYING in the source tree root for full license agreement. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| int initSynth(struct MIDIfile * mf, char * filename, char * drumConfig); |
| signed short int synthVoice(struct SynthObject * so); |
| void setPoint(struct SynthObject * so, int pt); |
| |
| static inline void synthSample(int * mixL, int * mixR) |
| { |
| int i; |
| register int dL=0; |
| register int dR=0; |
| register short sample = 0; |
| register struct SynthObject *voicept=voices; |
| |
| for(i=MAX_VOICES/2; i > 0; i--) |
| { |
| if(voicept->isUsed==1) |
| { |
| sample = synthVoice(voicept); |
| dL += (sample*chPanLeft[voicept->ch])>>7; |
| dR += (sample*chPanRight[voicept->ch])>>7; |
| } |
| voicept++; |
| if(voicept->isUsed==1) |
| { |
| sample = synthVoice(voicept); |
| dL += (sample*chPanLeft[voicept->ch])>>7; |
| dR += (sample*chPanRight[voicept->ch])>>7; |
| } |
| voicept++; |
| } |
| |
| for(i=MAX_VOICES%2; i > 0; i--) |
| { |
| if(voicept->isUsed==1) |
| { |
| sample = synthVoice(voicept); |
| dL += (sample*chPanLeft[voicept->ch])>>7; |
| dR += (sample*chPanRight[voicept->ch])>>7; |
| } |
| voicept++; |
| } |
| |
| *mixL=dL; |
| *mixR=dR; |
| |
| /* TODO: Automatic Gain Control, anyone? */ |
| /* Or, should this be implemented on the DSP's output volume instead? */ |
| |
| return; /* No more ghetto lowpass filter.. linear intrpolation works well. */ |
| } |
| |
| static inline struct Event * getEvent(struct Track * tr, int evNum) |
| { |
| return tr->dataBlock + (evNum*sizeof(struct Event)); |
| } |
| |