blob: 5eadd5e315f297057fc9650f079c2791347a8736 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
// license:BSD-3-Clause
// copyright-holders:Aaron Giles,smf
#ifndef MAME_SOUND_CDDA_H
#define MAME_SOUND_CDDA_H
#pragma once
#include "imagedev/cdromimg.h"
class cdda_device : public device_t, public device_sound_interface
{
public:
cdda_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 44100);
template<typename T> void set_cdrom_tag(T &&tag) { m_disc.set_tag(std::forward<T>(tag)); }
void start_audio(uint32_t startlba, uint32_t numblocks);
void stop_audio();
void pause_audio(int pause);
void scan_forward();
void scan_reverse();
void cancel_scan();
int16_t get_channel_sample(int channel);
void set_audio_lba(uint32_t lba);
uint32_t get_audio_lba();
void set_audio_length(uint32_t sectors);
int audio_active();
int audio_paused();
int audio_ended();
auto audio_end_cb() { return m_audio_end_cb.bind(); }
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream) override;
private:
void get_audio_data(sound_stream &stream);
required_device<cdrom_image_device> m_disc;
// internal state
sound_stream * m_stream;
int8_t m_audio_playing, m_audio_pause, m_audio_ended_normally, m_audio_scan, m_audio_scan_direction;
uint32_t m_audio_lba, m_audio_length;
std::unique_ptr<uint8_t[]> m_audio_cache;
uint32_t m_audio_samples;
uint32_t m_audio_bptr;
int16_t m_audio_data[2];
uint32_t m_sequence_counter;
devcb_write_line m_audio_end_cb;
};
DECLARE_DEVICE_TYPE(CDDA, cdda_device)
#endif // MAME_SOUND_CDDA_H
|