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84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
//
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// speaker.h
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// A2Mac
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//
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// Created by Tamas Rudnai on 5/9/20.
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// Copyright © 2020 GameAlloy. All rights reserved.
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//
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#ifndef speaker_h
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#define speaker_h
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#include <stdio.h>
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#include <OpenAL/al.h>
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#include <OpenAL/alc.h>
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// very loud
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//#define SPKR_LEVEL_MIN (-28000)
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//#define SPKR_LEVEL_MAX (+28000)
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// loud
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//#define SPKR_LEVEL_MIN (-5000)
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//#define SPKR_LEVEL_MAX (+5000)
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// medium
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#define SPKR_LEVEL_MIN (-3072)
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#define SPKR_LEVEL_MAX (+3072)
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#define SPKR_FADE_LEADING_EDGE 0.32
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#define SPKR_FADE_TRAILING_EDGE 0.16
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#define SPKR_INITIAL_DUMPING 0.90
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// quiet
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//#define SPKR_LEVEL_MIN (-1000)
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//#define SPKR_LEVEL_MAX (+1000)
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#define SPKR_LEVEL_ZERO 0 // as defined in OpenAL documentation for 8bit PCM
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enum {
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SPKR_SRC_GAME_SFX = 0,
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SPKR_SRC_DISK_MOTOR_SFX,
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SPKR_SRC_DISK_ARM_SFX,
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SPKR_SRC_DISK_IOERR_SFX,
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};
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extern const unsigned spkr_sample_rate;
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extern const unsigned spkr_buf_alloc_size;
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extern unsigned spkr_buf_size;
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extern const unsigned spkr_fps;
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extern unsigned spkr_fps_divider;
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extern int16_t spkr_samples [];
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extern unsigned spkr_sample_idx;
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extern int spkr_level;
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extern int freeBuffers;
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extern int spkr_extra_buf;
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extern unsigned spkr_play_timeout;
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extern unsigned spkr_play_time;
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extern float spkr_vol;
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extern void spkr_vol_up(void);
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extern void spkr_vol_dn(void);
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extern void spkr_mute(void);
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extern void spkr_init(void);
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extern void spkr_exit(void);
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extern void spkr_update(void);
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extern void spkr_toggle(void);
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extern void spkr_load_sfx( const char * bundlePath );
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extern void spkr_play_disk_motor(void);
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extern void spkr_stop_disk_motor( int time );
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extern void spkr_update_disk_sfx(void);
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extern void spkr_stop_sfx( ALuint src );
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extern void spkr_stopAll(void);
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extern void spkr_play_disk_arm(void);
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extern void spkr_play_disk_ioerr(void);
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#endif /* speaker_h */
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