diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/audio/baudio/SDL_beaudio.cc')
| -rw-r--r-- | distrib/sdl-1.2.12/src/audio/baudio/SDL_beaudio.cc | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/distrib/sdl-1.2.12/src/audio/baudio/SDL_beaudio.cc b/distrib/sdl-1.2.12/src/audio/baudio/SDL_beaudio.cc deleted file mode 100644 index fce0ecb..0000000 --- a/distrib/sdl-1.2.12/src/audio/baudio/SDL_beaudio.cc +++ /dev/null @@ -1,225 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -/* Allow access to the audio stream on BeOS */ - -#include <SoundPlayer.h> - -#include "../../main/beos/SDL_BeApp.h" - -extern "C" { - -#include "SDL_audio.h" -#include "../SDL_audio_c.h" -#include "../SDL_sysaudio.h" -#include "../../thread/beos/SDL_systhread_c.h" -#include "SDL_beaudio.h" - - -/* 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); - -/* Audio driver bootstrap functions */ - -static int Audio_Available(void) -{ - return(1); -} - -static void Audio_DeleteDevice(SDL_AudioDevice *device) -{ - SDL_free(device->hidden); - SDL_free(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)); - - /* 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; - - return device; -} - -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; - - /* 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; - - 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_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(); -} - -int BE_OpenAudio(_THIS, SDL_AudioSpec *spec) -{ - int valid_datatype = 0; - media_raw_audio_format format; - Uint16 test_format = SDL_FirstAudioFormat(spec->format); - - /* Parse the audio format and fill the Be raw audio format */ - memset(&format, '\0', sizeof (media_raw_audio_format)); - format.byte_order = B_MEDIA_LITTLE_ENDIAN; - format.frame_rate = (float) spec->freq; - format.channel_count = spec->channels; /* !!! FIXME: support > 2? */ - while ((!valid_datatype) && (test_format)) { - valid_datatype = 1; - spec->format = test_format; - switch (test_format) { - case AUDIO_S8: - format.format = media_raw_audio_format::B_AUDIO_CHAR; - break; - - case AUDIO_U8: - format.format = media_raw_audio_format::B_AUDIO_UCHAR; - break; - - case AUDIO_S16LSB: - format.format = media_raw_audio_format::B_AUDIO_SHORT; - break; - - case AUDIO_S16MSB: - format.format = media_raw_audio_format::B_AUDIO_SHORT; - format.byte_order = B_MEDIA_BIG_ENDIAN; - break; - - default: - valid_datatype = 0; - test_format = SDL_NextAudioFormat(); - break; - } - } - - if (!valid_datatype) { /* shouldn't happen, but just in case... */ - SDL_SetError("Unsupported audio format"); - return (-1); - } - - /* Initialize the Be Application, if it's not already started */ - if (SDL_InitBeApp() < 0) { - return (-1); - } - - format.buffer_size = spec->samples; - - /* Calculate the final parameters for this audio specification */ - SDL_CalculateAudioSpec(spec); - - /* 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); - } - - /* We're running! */ - return(1); -} - -}; /* Extern C */ |