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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
#include <stdio.h>
#include <SDL/SDL.h>
#include <SDL/SDL_mixer.h>
#include <assert.h>
#include <emscripten.h>
static Mix_Chunk *sound = NULL;
static Mix_Music *music = NULL;
static int soundChannel = 0;
void one_iter();
void one_iter() {
static int frames = 0;
frames++;
switch( frames ) {
case 1:
soundChannel = Mix_PlayChannel(-1, sound, 0);
printf("channel = %d", soundChannel);
assert(soundChannel != -1 && soundChannel != 0);
break;
case 2:
printf("channel %d is playing = %d", soundChannel, Mix_Playing(soundChannel));
assert(Mix_Playing(soundChannel));
break;
case 30:
Mix_Pause(soundChannel);
Mix_PlayMusic(music, 1);
break;
case 31:
assert(Mix_Paused(soundChannel));
assert(Mix_PlayingMusic());
break;
case 60:
Mix_Resume(soundChannel);
Mix_PauseMusic();
break;
case 61:
assert(Mix_Playing(soundChannel));
assert(Mix_PausedMusic());
break;
case 90:
Mix_ResumeMusic();
break;
case 91:
assert(Mix_PlayingMusic());
break;
case 120:
Mix_HaltChannel(soundChannel);
Mix_HaltMusic();
break;
};
}
int main(int argc, char **argv) {
SDL_Init(SDL_INIT_AUDIO);
Mix_Init(MIX_INIT_OGG);
// This reserves channel 0 for other purposes.
// We are just going to verify that we are not
// allocated channel 0 when we call Mix_PlayChannel(-1, ...)
Mix_ReserveChannels(1);
int ret = Mix_OpenAudio(0, 0, 0, 0); // we ignore all these..
assert(ret == 0);
sound = Mix_LoadWAV("sound.ogg");
assert(sound);
music = Mix_LoadMUS("music.ogg");
assert(music);
emscripten_set_main_loop(one_iter, 30, 0);
// force a quit
while(Mix_Init(0))
Mix_Quit();
Mix_CloseAudio();
return 0;
}
|
