static int dsound_init(void)
{
HRESULT result;
LPGUID guid = NULL; // Default audio device
osd_enum_audio_devices(); // (Re-)Enumerate devices
// Get the guid to the user selected audio device (NULL if no selected)
if(current_audio_device>= 0 && current_audio_device<audio_devices_number)
guid = audio_devices[current_audio_device].guid;
// now attempt to create it
result = DirectSoundCreate(guid, &dsound, NULL);
if (result != DS_OK)
{
fprintf(stderr, "Error creating DirectSound: %08x\n", (UINT32)result);
goto cant_create_dsound;
}
// get the capabilities
dsound_caps.dwSize = sizeof(dsound_caps);
result = IDirectSound_GetCaps(dsound, &dsound_caps);
if (result != DS_OK)
{
fprintf(stderr, "Error getting DirectSound capabilities: %08x\n", (UINT32)result);
goto cant_get_caps;
}
// set the cooperative level
result = IDirectSound_SetCooperativeLevel(dsound, win_video_window, DSSCL_PRIORITY);
if (result != DS_OK)
{
fprintf(stderr, "Error setting cooperative level: %08x\n", (UINT32)result);
goto cant_set_coop_level;
}
// make a format description for what we want
stream_format.wBitsPerSample = 16;
stream_format.wFormatTag = WAVE_FORMAT_PCM;
stream_format.nChannels = (Machine->drv->sound_attributes & SOUND_SUPPORTS_STEREO) ? 2 : 1;
stream_format.nSamplesPerSec = Machine->sample_rate;
stream_format.nBlockAlign = stream_format.wBitsPerSample * stream_format.nChannels / 8;
stream_format.nAvgBytesPerSec = stream_format.nSamplesPerSec * stream_format.nBlockAlign;
// compute the buffer sizes
stream_buffer_size = ((UINT64)MAX_BUFFER_SIZE * (UINT64)stream_format.nSamplesPerSec) / 44100;
stream_buffer_size = (stream_buffer_size * stream_format.nBlockAlign) / 4;
stream_buffer_size = (stream_buffer_size * 30) / Machine->drv->frames_per_second;
stream_buffer_size = (stream_buffer_size / 1024) * 1024;
// compute the upper/lower thresholds
lower_thresh = audio_latency * stream_buffer_size / 5;
upper_thresh = (audio_latency + 1) * stream_buffer_size / 5;
#if LOG_SOUND
fprintf(sound_log, "stream_buffer_size = %d (max %d)\n", stream_buffer_size, MAX_BUFFER_SIZE);
fprintf(sound_log, "lower_thresh = %d\n", lower_thresh);
fprintf(sound_log, "upper_thresh = %d\n", upper_thresh);
#endif
// create the buffers
if (dsound_create_buffers())
goto cant_create_buffers;
// start playing
is_enabled = 1;
result = IDirectSoundBuffer_Play(stream_buffer, 0, 0, DSBPLAY_LOOPING);
if (result != DS_OK)
{
fprintf(stderr, "Error playing: %08x\n", (UINT32)result);
goto cant_play;
}
return 0;
// error handling
cant_play:
dsound_destroy_buffers();
cant_create_buffers:
cant_set_coop_level:
cant_get_caps:
IDirectSound_Release(dsound);
cant_create_dsound:
dsound = NULL;
return 0;
}
HRESULT sound_direct_sound::dsound_init()
{
HRESULT result;
// create the DirectSound object
result = DirectSoundCreate(NULL, &dsound, NULL);
if (result != DS_OK)
{
osd_printf_error("Error creating DirectSound: %08x\n", (UINT32)result);
goto error;
}
// get the capabilities
dsound_caps.dwSize = sizeof(dsound_caps);
result = IDirectSound_GetCaps(dsound, &dsound_caps);
if (result != DS_OK)
{
osd_printf_error("Error getting DirectSound capabilities: %08x\n", (UINT32)result);
goto error;
}
// set the cooperative level
#ifdef SDLMAME_WIN32
SDL_SysWMinfo wminfo;
SDL_VERSION(&wminfo.version);
#if (SDLMAME_SDL2)
SDL_GetWindowWMInfo(sdl_window_list->sdl_window(), &wminfo);
result = IDirectSound_SetCooperativeLevel(dsound, wminfo.info.win.window, DSSCL_PRIORITY);
#else
SDL_GetWMInfo(&wminfo);
result = IDirectSound_SetCooperativeLevel(dsound, wminfo.window, DSSCL_PRIORITY);
#endif
#else
result = IDirectSound_SetCooperativeLevel(dsound, win_window_list->m_hwnd, DSSCL_PRIORITY);
#endif
if (result != DS_OK)
{
osd_printf_error("Error setting DirectSound cooperative level: %08x\n", (UINT32)result);
goto error;
}
// make a format description for what we want
stream_format.wBitsPerSample = 16;
stream_format.wFormatTag = WAVE_FORMAT_PCM;
stream_format.nChannels = 2;
stream_format.nSamplesPerSec = sample_rate();
stream_format.nBlockAlign = stream_format.wBitsPerSample * stream_format.nChannels / 8;
stream_format.nAvgBytesPerSec = stream_format.nSamplesPerSec * stream_format.nBlockAlign;
// compute the buffer size based on the output sample rate
int audio_latency;
audio_latency = m_audio_latency;
stream_buffer_size = stream_format.nSamplesPerSec * stream_format.nBlockAlign * audio_latency / 10;
stream_buffer_size = (stream_buffer_size / 1024) * 1024;
if (stream_buffer_size < 1024)
stream_buffer_size = 1024;
LOG(("stream_buffer_size = %d\n", stream_buffer_size));
// create the buffers
result = dsound_create_buffers();
if (result != DS_OK)
goto error;
// start playing
result = IDirectSoundBuffer_Play(stream_buffer, 0, 0, DSBPLAY_LOOPING);
if (result != DS_OK)
{
osd_printf_error("Error playing: %08x\n", (UINT32)result);
goto error;
}
return DS_OK;
// error handling
error:
dsound_destroy_buffers();
dsound_kill();
return result;
}
static HRESULT dsound_init(running_machine *machine)
{
HRESULT result;
// create the DirectSound object
result = DirectSoundCreate(NULL, &dsound, NULL);
if (result != DS_OK)
{
mame_printf_error("Error creating DirectSound: %08x\n", (UINT32)result);
goto error;
}
// get the capabilities
dsound_caps.dwSize = sizeof(dsound_caps);
result = IDirectSound_GetCaps(dsound, &dsound_caps);
if (result != DS_OK)
{
mame_printf_error("Error getting DirectSound capabilities: %08x\n", (UINT32)result);
goto error;
}
// set the cooperative level
result = IDirectSound_SetCooperativeLevel(dsound, win_window_list->hwnd, DSSCL_PRIORITY);
if (result != DS_OK)
{
mame_printf_error("Error setting DirectSound cooperative level: %08x\n", (UINT32)result);
goto error;
}
// make a format description for what we want
stream_format.wBitsPerSample = 16;
stream_format.wFormatTag = WAVE_FORMAT_PCM;
stream_format.nChannels = 2;
stream_format.nSamplesPerSec = machine->sample_rate;
stream_format.nBlockAlign = stream_format.wBitsPerSample * stream_format.nChannels / 8;
stream_format.nAvgBytesPerSec = stream_format.nSamplesPerSec * stream_format.nBlockAlign;
// compute the buffer size based on the output sample rate
stream_buffer_size = stream_format.nSamplesPerSec * stream_format.nBlockAlign * options_get_int(machine->options(), WINOPTION_AUDIO_LATENCY) / 10;
stream_buffer_size = (stream_buffer_size / 1024) * 1024;
if (stream_buffer_size < 1024)
stream_buffer_size = 1024;
LOG(("stream_buffer_size = %d\n", stream_buffer_size));
// create the buffers
result = dsound_create_buffers();
if (result != DS_OK)
goto error;
// start playing
result = IDirectSoundBuffer_Play(stream_buffer, 0, 0, DSBPLAY_LOOPING);
if (result != DS_OK)
{
mame_printf_error("Error playing: %08x\n", (UINT32)result);
goto error;
}
return DS_OK;
// error handling
error:
dsound_destroy_buffers();
dsound_kill();
return result;
}
static int dsound_init(void)
{
HRESULT result;
// now attempt to create it
result = DirectSoundCreate(NULL, &dsound, NULL);
if (result != DS_OK)
{
fprintf(stderr, "Error creating DirectSound: %08x\n", (UINT32)result);
goto cant_create_dsound;
}
// get the capabilities
dsound_caps.dwSize = sizeof(dsound_caps);
result = IDirectSound_GetCaps(dsound, &dsound_caps);
if (result != DS_OK)
{
fprintf(stderr, "Error getting DirectSound capabilities: %08x\n", (UINT32)result);
goto cant_get_caps;
}
// set the cooperative level
result = IDirectSound_SetCooperativeLevel(dsound, win_window_list->hwnd, DSSCL_PRIORITY);
if (result != DS_OK)
{
fprintf(stderr, "Error setting cooperative level: %08x\n", (UINT32)result);
goto cant_set_coop_level;
}
// make a format description for what we want
stream_format.wBitsPerSample = 16;
stream_format.wFormatTag = WAVE_FORMAT_PCM;
stream_format.nChannels = 2;
stream_format.nSamplesPerSec = Machine->sample_rate;
stream_format.nBlockAlign = stream_format.wBitsPerSample * stream_format.nChannels / 8;
stream_format.nAvgBytesPerSec = stream_format.nSamplesPerSec * stream_format.nBlockAlign;
// compute the buffer sizes
stream_buffer_size = ((UINT64)MAX_BUFFER_SIZE * (UINT64)stream_format.nSamplesPerSec) / 44100;
stream_buffer_size = (stream_buffer_size * stream_format.nBlockAlign) / 4;
stream_buffer_size = (stream_buffer_size * 30) / Machine->screen[0].refresh;
stream_buffer_size = (stream_buffer_size / 1024) * 1024;
// compute the upper/lower thresholds
lower_thresh = audio_latency * stream_buffer_size / 5;
upper_thresh = (audio_latency + 1) * stream_buffer_size / 5;
#if LOG_SOUND
fprintf(sound_log, "stream_buffer_size = %d (max %d)\n", stream_buffer_size, MAX_BUFFER_SIZE);
fprintf(sound_log, "lower_thresh = %d\n", lower_thresh);
fprintf(sound_log, "upper_thresh = %d\n", upper_thresh);
#endif
// create the buffers
if (dsound_create_buffers())
goto cant_create_buffers;
// start playing
is_enabled = 1;
result = IDirectSoundBuffer_Play(stream_buffer, 0, 0, DSBPLAY_LOOPING);
if (result != DS_OK)
{
fprintf(stderr, "Error playing: %08x\n", (UINT32)result);
goto cant_play;
}
return 0;
// error handling
cant_play:
dsound_destroy_buffers();
cant_create_buffers:
cant_set_coop_level:
cant_get_caps:
IDirectSound_Release(dsound);
cant_create_dsound:
dsound = NULL;
return 0;
}
