devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

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

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

118
apps/plugins/midi/midiutil.c
View file

@ -5,6 +5,7 @@
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Stepan Moskovchenko
*
@ -15,134 +16,23 @@
* KIND, either express or implied.
*
****************************************************************************/
#define BYTE unsigned char
//Data chunk ID types, returned by readID()
#define ID_UNKNOWN -1
#define ID_MTHD 1
#define ID_MTRK 2
#define ID_EOF 3
#define ID_RIFF 4
//MIDI Commands
#define MIDI_NOTE_OFF 128
#define MIDI_NOTE_ON 144
#define MIDI_AFTERTOUCH 160
#define MIDI_CONTROL 176
#define MIDI_PRGM 192
#define MIDI_PITCHW 224
//MIDI Controllers
#define CTRL_VOLUME 7
#define CTRL_BALANCE 8
#define CTRL_PANNING 10
#define CHANNEL 1
//Most of these are deprecated.. rampdown is used, maybe one other one too
#define STATE_ATTACK 1
#define STATE_DECAY 2
#define STATE_SUSTAIN 3
#define STATE_RELEASE 4
#define STATE_RAMPDOWN 5
//Loop states
#define STATE_LOOPING 7
#define STATE_NONLOOPING 8
//Various bits in the GUS mode byte
#define LOOP_ENABLED 4
#define LOOP_PINGPONG 8
#define LOOP_REVERSE 16
#define LOOPDIR_FORWARD 0
#define LOOPDIR_REVERSE 1
#include "plugin.h"
#include "midiutil.h"
extern struct plugin_api * rb;
int printf(const char *fmt, ...);
int chVol[16] IBSS_ATTR; /* Channel volume */
int chPanLeft[16] IBSS_ATTR; /* Channel panning */
int chPanRight[16] IBSS_ATTR;
int chPat[16] IBSS_ATTR; /* Channel patch */
int chPW[16] IBSS_ATTR; /* Channel pitch wheel, MSB only */
struct GPatch * gusload(char *);
struct GPatch * patchSet[128];
struct GPatch * drumSet[128];
struct Event
{
unsigned int delta;
unsigned char status, d1, d2;
unsigned int len;
unsigned char * evData;
};
struct Track
{
unsigned int size;
unsigned int numEvents;
unsigned int delta; /* For sequencing */
unsigned int pos; /* For sequencing */
void * dataBlock;
};
struct MIDIfile
{
int Length;
unsigned short numTracks;
unsigned short div; /* Time division, X ticks per millisecond */
struct Track * tracks[48];
unsigned char patches[128];
int numPatches;
};
/*
struct SynthObject
{
struct GWaveform * wf;
unsigned int delta;
unsigned int decay;
unsigned int cp;
unsigned char state, loopState, loopDir;
unsigned char note, vol, ch, isUsed;
int curRate, curOffset, targetOffset;
unsigned int curPoint;
};
*/
struct SynthObject
{
struct GWaveform * wf;
int delta;
int decay;
unsigned int cp; /* unsigned int */
int state, loopState, loopDir;
int note, vol, ch, isUsed;
int curRate, curOffset, targetOffset;
int curPoint;
signed short int volscale;
};
struct SynthObject voices[MAX_VOICES] IBSS_ATTR;
void sendEvent(struct Event * ev);
inline void setPoint(struct SynthObject * so, int pt);
struct Event * getEvent(struct Track * tr, int evNum);
int readTwoBytes(int file);
int readFourBytes(int file);
int readVarData(int file);
int midimain(void * filename);
void *alloc(int size)
{
static char *offset = NULL;
@ -180,7 +70,6 @@ void *alloc(int size)
return ret;
}
/* Rick's code */
/*
void *alloc(int size)
@ -267,3 +156,4 @@ void exit(int code)
{
code = code; /* Stub function, kill warning for now */
}