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
|
#ifndef SAMPLES_H
#define SAMPLES_H
struct loaded_sample
{
int length; /* length in samples */
int frequency; /* frequency of the sample */
INT16 * data; /* 16-bit signed data */
};
struct loaded_samples
{
int total; /* number of samples */
struct loaded_sample sample[1]; /* array of samples */
};
struct Samplesinterface
{
int channels; /* number of discrete audio channels needed */
const char *const *samplenames;
void (*start)(void);
};
void sample_start_n(int num,int channel,int samplenum,int loop);
void sample_start_raw_n(int num,int channel,const INT16 *sampledata,int samples,int frequency,int loop);
void sample_set_freq_n(int num,int channel,int freq);
void sample_set_volume_n(int num,int channel,float volume);
void sample_set_pause_n(int num,int channel,int pause);
void sample_stop_n(int num,int channel);
int sample_get_base_freq_n(int num,int channel);
int sample_playing_n(int num,int channel);
int sample_loaded_n(int num,int samplenum);
/* shortcuts for backwards compatibilty */
void sample_start(int channel,int samplenum,int loop);
void sample_start_raw(int channel,const INT16 *sampledata,int samples,int frequency,int loop);
void sample_set_freq(int channel,int freq);
void sample_set_volume(int channel,float volume);
void sample_set_pause(int channel,int pause);
void sample_stop(int channel);
int sample_get_base_freq(int channel);
int sample_playing(int channel);
int sample_loaded(int samplenum);
/* helper function that reads samples from disk - this can be used by other */
/* drivers as well (e.g. a sound chip emulator needing drum samples) */
struct loaded_samples *readsamples(const char *const *samplenames, const char *name);
#endif
|