Mercurial > sdl-ios-xcode
diff src/audio/baudio/SDL_beaudio.cc @ 1662:782fd950bd46 SDL-1.3
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid.
The code is now run through a consistent indent format:
indent -i4 -nut -nsc -br -ce
The headers are being converted to automatically generate doxygen documentation.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 28 May 2006 13:04:16 +0000 |
parents | 376665398b25 |
children | 4da1ee79c9af |
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--- a/src/audio/baudio/SDL_beaudio.cc Sun May 21 17:27:13 2006 +0000 +++ b/src/audio/baudio/SDL_beaudio.cc Sun May 28 13:04:16 2006 +0000 @@ -27,7 +27,8 @@ #include "../../main/beos/SDL_BeApp.h" -extern "C" { +extern "C" +{ #include "SDL_audio.h" #include "../SDL_audio_c.h" @@ -37,172 +38,177 @@ /* Audio driver functions */ -static int BE_OpenAudio(_THIS, SDL_AudioSpec *spec); -static void BE_WaitAudio(_THIS); -static void BE_PlayAudio(_THIS); -static Uint8 *BE_GetAudioBuf(_THIS); -static void BE_CloseAudio(_THIS); + static int BE_OpenAudio (_THIS, SDL_AudioSpec * spec); + static void BE_WaitAudio (_THIS); + static void BE_PlayAudio (_THIS); + static Uint8 *BE_GetAudioBuf (_THIS); + static void BE_CloseAudio (_THIS); /* Audio driver bootstrap functions */ -static int Audio_Available(void) -{ - return(1); -} + static int Audio_Available (void) + { + return (1); + } -static void Audio_DeleteDevice(SDL_AudioDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} + static void Audio_DeleteDevice (SDL_AudioDevice * device) + { + SDL_free (device->hidden); + SDL_free (device); + } -static SDL_AudioDevice *Audio_CreateDevice(int devindex) -{ - SDL_AudioDevice *device; + static SDL_AudioDevice *Audio_CreateDevice (int devindex) + { + SDL_AudioDevice *device; - /* Initialize all variables that we clean on shutdown */ - device = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); - if ( device ) { - SDL_memset(device, 0, (sizeof *device)); - device->hidden = (struct SDL_PrivateAudioData *) - SDL_malloc((sizeof *device->hidden)); - } - if ( (device == NULL) || (device->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( device ) { - SDL_free(device); - } - return(0); - } - SDL_memset(device->hidden, 0, (sizeof *device->hidden)); + /* Initialize all variables that we clean on shutdown */ + device = (SDL_AudioDevice *) SDL_malloc (sizeof (SDL_AudioDevice)); + if (device) { + SDL_memset (device, 0, (sizeof *device)); + device->hidden = (struct SDL_PrivateAudioData *) + SDL_malloc ((sizeof *device->hidden)); + } + if ((device == NULL) || (device->hidden == NULL)) { + SDL_OutOfMemory (); + if (device) { + SDL_free (device); + } + return (0); + } + SDL_memset (device->hidden, 0, (sizeof *device->hidden)); - /* Set the function pointers */ - device->OpenAudio = BE_OpenAudio; - device->WaitAudio = BE_WaitAudio; - device->PlayAudio = BE_PlayAudio; - device->GetAudioBuf = BE_GetAudioBuf; - device->CloseAudio = BE_CloseAudio; + /* Set the function pointers */ + device->OpenAudio = BE_OpenAudio; + device->WaitAudio = BE_WaitAudio; + device->PlayAudio = BE_PlayAudio; + device->GetAudioBuf = BE_GetAudioBuf; + device->CloseAudio = BE_CloseAudio; - device->free = Audio_DeleteDevice; + device->free = Audio_DeleteDevice; - return device; -} + return device; + } -AudioBootStrap BAUDIO_bootstrap = { - "baudio", "BeOS BSoundPlayer", - Audio_Available, Audio_CreateDevice -}; + AudioBootStrap BAUDIO_bootstrap = { + "baudio", "BeOS BSoundPlayer", + Audio_Available, Audio_CreateDevice + }; /* The BeOS callback for handling the audio buffer */ -static void FillSound(void *device, void *stream, size_t len, - const media_raw_audio_format &format) -{ - SDL_AudioDevice *audio = (SDL_AudioDevice *)device; + static void FillSound (void *device, void *stream, size_t len, + const media_raw_audio_format & format) + { + SDL_AudioDevice *audio = (SDL_AudioDevice *) device; - /* Silence the buffer, since it's ours */ - SDL_memset(stream, audio->spec.silence, len); + /* Silence the buffer, since it's ours */ + SDL_memset (stream, audio->spec.silence, len); - /* Only do soemthing if audio is enabled */ - if ( ! audio->enabled ) - return; + /* Only do soemthing if audio is enabled */ + if (!audio->enabled) + return; - if ( ! audio->paused ) { - if ( audio->convert.needed ) { - SDL_mutexP(audio->mixer_lock); - (*audio->spec.callback)(audio->spec.userdata, - (Uint8 *)audio->convert.buf,audio->convert.len); - SDL_mutexV(audio->mixer_lock); - SDL_ConvertAudio(&audio->convert); - SDL_memcpy(stream,audio->convert.buf,audio->convert.len_cvt); - } else { - SDL_mutexP(audio->mixer_lock); - (*audio->spec.callback)(audio->spec.userdata, - (Uint8 *)stream, len); - SDL_mutexV(audio->mixer_lock); - } - } - return; -} + if (!audio->paused) { + if (audio->convert.needed) { + SDL_mutexP (audio->mixer_lock); + (*audio->spec.callback) (audio->spec.userdata, + (Uint8 *) audio->convert.buf, + audio->convert.len); + SDL_mutexV (audio->mixer_lock); + SDL_ConvertAudio (&audio->convert); + SDL_memcpy (stream, audio->convert.buf, + audio->convert.len_cvt); + } else { + SDL_mutexP (audio->mixer_lock); + (*audio->spec.callback) (audio->spec.userdata, + (Uint8 *) stream, len); + SDL_mutexV (audio->mixer_lock); + } + } + return; + } /* Dummy functions -- we don't use thread-based audio */ -void BE_WaitAudio(_THIS) -{ - return; -} -void BE_PlayAudio(_THIS) -{ - return; -} -Uint8 *BE_GetAudioBuf(_THIS) -{ - return(NULL); -} + void BE_WaitAudio (_THIS) + { + return; + } + void BE_PlayAudio (_THIS) + { + return; + } + Uint8 *BE_GetAudioBuf (_THIS) + { + return (NULL); + } -void BE_CloseAudio(_THIS) -{ - if ( audio_obj ) { - audio_obj->Stop(); - delete audio_obj; - audio_obj = NULL; - } + void BE_CloseAudio (_THIS) + { + if (audio_obj) { + audio_obj->Stop (); + delete audio_obj; + audio_obj = NULL; + } - /* Quit the Be Application, if there's nothing left to do */ - SDL_QuitBeApp(); -} + /* Quit the Be Application, if there's nothing left to do */ + SDL_QuitBeApp (); + } -int BE_OpenAudio(_THIS, SDL_AudioSpec *spec) -{ - media_raw_audio_format format; + int BE_OpenAudio (_THIS, SDL_AudioSpec * spec) + { + media_raw_audio_format format; - /* Initialize the Be Application, if it's not already started */ - if ( SDL_InitBeApp() < 0 ) { - return(-1); - } + /* Initialize the Be Application, if it's not already started */ + if (SDL_InitBeApp () < 0) { + return (-1); + } - /* Parse the audio format and fill the Be raw audio format */ - format.frame_rate = (float)spec->freq; - format.channel_count = spec->channels; - switch (spec->format&~0x1000) { - case AUDIO_S8: - /* Signed 8-bit audio unsupported, convert to U8 */ - spec->format = AUDIO_U8; - case AUDIO_U8: - format.format = media_raw_audio_format::B_AUDIO_UCHAR; - format.byte_order = 0; - break; - case AUDIO_U16: - /* Unsigned 16-bit audio unsupported, convert to S16 */ - spec->format ^= 0x8000; - case AUDIO_S16: - format.format = media_raw_audio_format::B_AUDIO_SHORT; - if ( spec->format & 0x1000 ) { - format.byte_order = 1; /* Big endian */ - } else { - format.byte_order = 2; /* Little endian */ - } - break; - } - format.buffer_size = spec->samples; - - /* Calculate the final parameters for this audio specification */ - SDL_CalculateAudioSpec(spec); + /* Parse the audio format and fill the Be raw audio format */ + format.frame_rate = (float) spec->freq; + format.channel_count = spec->channels; + switch (spec->format & ~0x1000) { + case AUDIO_S8: + /* Signed 8-bit audio unsupported, convert to U8 */ + spec->format = AUDIO_U8; + case AUDIO_U8: + format.format = media_raw_audio_format::B_AUDIO_UCHAR; + format.byte_order = 0; + break; + case AUDIO_U16: + /* Unsigned 16-bit audio unsupported, convert to S16 */ + spec->format ^= 0x8000; + case AUDIO_S16: + format.format = media_raw_audio_format::B_AUDIO_SHORT; + if (spec->format & 0x1000) { + format.byte_order = 1; /* Big endian */ + } else { + format.byte_order = 2; /* Little endian */ + } + break; + } + format.buffer_size = spec->samples; - /* Subscribe to the audio stream (creates a new thread) */ - { sigset_t omask; - SDL_MaskSignals(&omask); - audio_obj = new BSoundPlayer(&format, "SDL Audio", FillSound, - NULL, _this); - SDL_UnmaskSignals(&omask); - } - if ( audio_obj->Start() == B_NO_ERROR ) { - audio_obj->SetHasData(true); - } else { - SDL_SetError("Unable to start Be audio"); - return(-1); - } + /* Calculate the final parameters for this audio specification */ + SDL_CalculateAudioSpec (spec); - /* We're running! */ - return(1); -} + /* Subscribe to the audio stream (creates a new thread) */ + { + sigset_t omask; + SDL_MaskSignals (&omask); + audio_obj = new BSoundPlayer (&format, "SDL Audio", FillSound, + NULL, _this); + SDL_UnmaskSignals (&omask); + } + if (audio_obj->Start () == B_NO_ERROR) { + audio_obj->SetHasData (true); + } else { + SDL_SetError ("Unable to start Be audio"); + return (-1); + } -}; /* Extern C */ + /* We're running! */ + return (1); + } + +}; /* Extern C */ + +/* vi: set ts=4 sw=4 expandtab: */