WiiFlow_Lite/portlibs/include/modplay/envelope.h
2012-01-21 20:57:41 +00:00

58 lines
831 B
C

/*
* Copyright (c) 2002, 2003, 2004, 2005, 2007 by Christian Nowak <chnowak@web.de>
* Last update: 20th October, 2007
*/
#ifndef __ENVELOPE_H__
#define __ENVELOPE_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "defines.h"
#define ENV_WIDTH 65536
#define ENV_HEIGHT 65536
typedef struct EnvPoint {
u16 x,y;
} EnvPoint;
typedef struct EnvelopeConfig {
BOOL enabled;
u8 numPoints; /* # of envelope points */
u8 loop_start;
u8 loop_end;
u8 sustain;
EnvPoint *envPoints;
} EnvelopeConfig;
typedef struct Envelope {
EnvelopeConfig *envConfig;
BOOL triggered;
BOOL hold;
u8 curPoint;
u16 value;
u16 position;
} Envelope;
void EnvReset(Envelope *env);
void EnvTrigger(Envelope *env);
BOOL EnvProcess(Envelope *env);
void EnvRelease(Envelope *env);
#ifdef __cplusplus
}
#endif
#endif