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Move all of midiplay into its subdir and add a Makefile for it, add header files as necessary.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14841 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Nils Wallménius 2007-09-24 15:57:32 +00:00
parent e24975a35f
commit 0e49605aaa
15 changed files with 377 additions and 195 deletions
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50
apps/plugins/midi/synth.h Normal file
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/***************************************************************************
* __________ __ ___.
* 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);
static inline void synthSample(int * mixL, int * mixR)
{
register int dL=0;
register int dR=0;
register short sample=0;
register struct SynthObject *voicept=voices;
struct SynthObject *lastvoice=&voices[MAX_VOICES];
while(voicept!=lastvoice)
{
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. */
}