shithub: pt2-clone

ref: 7442f4167c59bc041ba46fd0b0fee592a5de282f
dir: /src/pt2_scopes.h/

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#pragma once

#include <stdint.h>
#include <stdbool.h>
#include "pt2_header.h"

typedef struct scopeChannel_t // internal scope state
{
	const int8_t *data;
	bool loopFlag;
	int32_t length, pos, loopStart;
	uint32_t delta, posFrac;
} scopeChannel_t;

typedef struct scopeChannelExt // external scope state
{
	const int8_t *newData;
	volatile bool active, didSwapData;
	bool emptyScopeDrawn, newLoopFlag;
	int32_t newLength, newLoopStart;
} scopeChannelExt_t;

void setScopeDelta(uint8_t ch, uint32_t delta);
int32_t getSampleReadPos(uint8_t ch, uint8_t smpNum);
void updateScopes(void);
void drawScopes(void);
bool initScopes(void);
void stopScope(uint8_t ch);
void stopAllScopes(void);

extern scopeChannel_t scope[AMIGA_VOICES];
extern scopeChannelExt_t scopeExt[AMIGA_VOICES];