1 #include <stdio.h>

2 #include "openal.h"

3 #include "audio.h"

4

5 #define CHECK_ERROR \

6 do { \

7 unsigned int err = alGetError(); \

8 if(err != 0) { \

9 fprintf(stderr, "%s:%d: AL error: %#x\n", __FILE__, __LINE__, err); \

10 abort(); \

11 } \

12 } while(0)

13

14 static ALCdevice *dev;

15 static ALCcontext *ctx;

16

17

18 bool init_audio()

19 {

20 if(dev) {

21 return true;

22 }

23

24 if(!(dev = alcOpenDevice(0))) {

25 fprintf(stderr, "failed to open OpenAL device\n");

26 return false;

27 }

28 ctx = alcCreateContext(dev, 0);

29 alcMakeContextCurrent(ctx);

30

31 alGetError(); // clear error code

32 return true;

33 }

34

35 void destroy_audio()

36 {

37 alcMakeContextCurrent(0);

38 if(ctx) {

39 alcDestroyContext(ctx);

40 }

41 if(dev) {

42 alcCloseDevice(dev);

43 }

44 }