diff options
Diffstat (limited to 'examples/alloopback.c')
| -rw-r--r-- | examples/alloopback.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/examples/alloopback.c b/examples/alloopback.c index 04c92818..16553f9b 100644 --- a/examples/alloopback.c +++ b/examples/alloopback.c @@ -38,6 +38,13 @@ #include "common/alhelpers.h" +#ifndef SDL_AUDIO_MASK_BITSIZE +#define SDL_AUDIO_MASK_BITSIZE (0xFF) +#endif +#ifndef SDL_AUDIO_BITSIZE +#define SDL_AUDIO_BITSIZE(x) (x & SDL_AUDIO_MASK_BITSIZE) +#endif + #ifndef M_PI #define M_PI (3.14159265358979323846) #endif @@ -61,6 +68,35 @@ void SDLCALL RenderSDLSamples(void *userdata, Uint8 *stream, int len) } +static const char *ChannelsName(ALCenum chans) +{ + switch(chans) + { + case ALC_MONO_SOFT: return "Mono"; + case ALC_STEREO_SOFT: return "Stereo"; + case ALC_QUAD_SOFT: return "Quadraphonic"; + case ALC_5POINT1_SOFT: return "5.1 Surround"; + case ALC_6POINT1_SOFT: return "6.1 Surround"; + case ALC_7POINT1_SOFT: return "7.1 Surround"; + } + return "Unknown Channels"; +} + +static const char *TypeName(ALCenum type) +{ + switch(type) + { + case ALC_BYTE_SOFT: return "S8"; + case ALC_UNSIGNED_BYTE_SOFT: return "U8"; + case ALC_SHORT_SOFT: return "S16"; + case ALC_UNSIGNED_SHORT_SOFT: return "U16"; + case ALC_INT_SOFT: return "S32"; + case ALC_UNSIGNED_INT_SOFT: return "U32"; + case ALC_FLOAT_SOFT: return "Float32"; + } + return "Unknown Type"; +} + /* Creates a one second buffer containing a sine wave, and returns the new * buffer ID. */ static ALuint CreateSineWave(void) @@ -169,7 +205,7 @@ int main(int argc, char *argv[]) attrs[6] = 0; /* end of list */ - playback.FrameSize = FramesToBytes(1, attrs[1], attrs[3]); + playback.FrameSize = obtained.channels * SDL_AUDIO_BITSIZE(obtained.format) / 8; /* Initialize OpenAL loopback device, using our format attributes. */ playback.Device = alcLoopbackOpenDeviceSOFT(NULL); @@ -216,7 +252,7 @@ int main(int argc, char *argv[]) /* Play the sound until it finishes. */ alSourcePlay(source); do { - Sleep(10); + al_nssleep(10000000); alGetSourcei(source, AL_SOURCE_STATE, &state); } while(alGetError() == AL_NO_ERROR && state == AL_PLAYING); |