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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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38
apps/plugins/midi/synth.c
View file

@ -5,6 +5,7 @@
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Stepan Moskovchenko
*
@ -15,6 +16,10 @@
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "guspat.h"
#include "midiutil.h"
#include "synth.h"
extern struct plugin_api * rb;
@ -43,8 +48,6 @@ void readTextBlock(int file, char * buf)
rb->lseek(file, -1, SEEK_CUR);
}
/* Filename is the name of the config file */
/* The MIDI file should have been loaded at this point */
int initSynth(struct MIDIfile * mf, char * filename, char * drumConfig)
@ -400,34 +403,3 @@ signed short int synthVoice(struct SynthObject * so)
return s*so->volscale>>14;
}
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. */
}