view cdd_fader.h @ 2217:8483c685cf03

Allow tern_foreach on an empty (NULL) ternary tree
author Michael Pavone <pavone@retrodev.com>
date Tue, 30 Aug 2022 18:43:08 -0700
parents 4fbe1e7c4a73
children 5a21bc0ec583
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#ifndef CDD_FADER_H_
#define CDD_FADER_H_

#include "render_audio.h"

typedef struct {
	audio_source *audio;
	uint16_t     cur_attenuation;
	uint16_t     dst_attenuation;
	uint16_t     attenuation_step;
	uint8_t      flags;
	uint8_t      bytes[4];
	uint8_t      byte_counter;
} cdd_fader;

void cdd_fader_init(cdd_fader *fader);
void cdd_fader_deinit(cdd_fader *fader);
void cdd_fader_attenuation_write(cdd_fader *fader, uint16_t attenuation);
void cdd_fader_data(cdd_fader *fader, uint8_t byte);
void cdd_fader_pause(cdd_fader *fader);

#endif //CDD_FADER_H_