21 #include "../SDL_internal.h" 29 #include "../thread/SDL_systhread.h" 31 #define _THIS SDL_AudioDevice *_this 38 #if SDL_AUDIO_DRIVER_PULSEAUDIO 41 #if SDL_AUDIO_DRIVER_ALSA 44 #if SDL_AUDIO_DRIVER_SNDIO 47 #if SDL_AUDIO_DRIVER_NETBSD 50 #if SDL_AUDIO_DRIVER_OSS 53 #if SDL_AUDIO_DRIVER_QSA 56 #if SDL_AUDIO_DRIVER_SUNAUDIO 59 #if SDL_AUDIO_DRIVER_ARTS 62 #if SDL_AUDIO_DRIVER_ESD 65 #if SDL_AUDIO_DRIVER_NACL 68 #if SDL_AUDIO_DRIVER_NAS 71 #if SDL_AUDIO_DRIVER_WASAPI 74 #if SDL_AUDIO_DRIVER_DSOUND 77 #if SDL_AUDIO_DRIVER_WINMM 80 #if SDL_AUDIO_DRIVER_PAUDIO 83 #if SDL_AUDIO_DRIVER_HAIKU 86 #if SDL_AUDIO_DRIVER_COREAUDIO 89 #if SDL_AUDIO_DRIVER_FUSIONSOUND 92 #if SDL_AUDIO_DRIVER_ANDROID 95 #if SDL_AUDIO_DRIVER_PSP 98 #if SDL_AUDIO_DRIVER_EMSCRIPTEN 101 #if SDL_AUDIO_DRIVER_JACK 104 #if SDL_AUDIO_DRIVER_DISK 107 #if SDL_AUDIO_DRIVER_DUMMY 114 #ifdef HAVE_LIBSAMPLERATE_H 115 #ifdef SDL_LIBSAMPLERATE_DYNAMIC 116 static void *SRC_lib =
NULL;
119 int SRC_converter = 0;
120 SRC_STATE* (*SRC_src_new)(
int converter_type,
int channels,
int *error) =
NULL;
121 int (*SRC_src_process)(SRC_STATE *
state, SRC_DATA *
data) =
NULL;
122 int (*SRC_src_reset)(SRC_STATE *
state) =
NULL;
123 SRC_STATE* (*SRC_src_delete)(SRC_STATE *
state) =
NULL;
124 const char* (*SRC_src_strerror)(
int error) =
NULL;
127 LoadLibSampleRate(
void)
134 if (!hint || *hint ==
'0' ||
SDL_strcasecmp(hint,
"default") == 0) {
137 SRC_converter = SRC_SINC_FASTEST;
139 SRC_converter = SRC_SINC_MEDIUM_QUALITY;
141 SRC_converter = SRC_SINC_BEST_QUALITY;
146 #ifdef SDL_LIBSAMPLERATE_DYNAMIC 154 SRC_src_new = (SRC_STATE* (*)(
int converter_type,
int channels,
int *error))
SDL_LoadFunction(SRC_lib,
"src_new");
158 SRC_src_strerror = (
const char* (*)(
int error))
SDL_LoadFunction(SRC_lib,
"src_strerror");
160 if (!SRC_src_new || !SRC_src_process || !SRC_src_reset || !SRC_src_delete || !SRC_src_strerror) {
166 SRC_src_new = src_new;
167 SRC_src_process = src_process;
168 SRC_src_reset = src_reset;
169 SRC_src_delete = src_delete;
170 SRC_src_strerror = src_strerror;
178 UnloadLibSampleRate(
void)
180 #ifdef SDL_LIBSAMPLERATE_DYNAMIC 181 if (SRC_lib !=
NULL) {
189 SRC_src_process =
NULL;
190 SRC_src_reset =
NULL;
191 SRC_src_delete =
NULL;
192 SRC_src_strerror =
NULL;
205 return open_devices[
id];
350 #define FILL_STUB(x) \ 351 if (current_audio.impl.x == NULL) { \ 352 current_audio.impl.x = SDL_Audio##x##_Default; \ 395 retval = (*devCount)++;
418 for (item = *devices; item !=
NULL; item = next) {
435 if (device_index != -1) {
441 event.adevice.which = device_index;
442 event.adevice.iscapture = iscapture;
468 event.adevice.which = device->
id;
469 event.adevice.iscapture = device->
iscapture ? 1 : 0;
479 for (item = devices; item !=
NULL; item = item->
next) {
480 if (item->
handle == handle) {
501 for (device_index = 0; device_index <
SDL_arraysize(open_devices); device_index++)
503 device = open_devices[device_index];
504 if (device !=
NULL && device->
handle == handle)
532 len -= (int) dequeued;
565 return SDL_SetError(
"This is a capture device, queueing not allowed");
567 return SDL_SetError(
"Audio device has a callback, queueing not allowed");
743 const int data_len = device->
spec.
size;
774 still_need = data_len;
789 while (still_need > 0) {
802 if (still_need > 0) {
846 #define CHECK_FMT_STRING(x) if (SDL_strcmp(string, #x) == 0) return AUDIO_##x 865 #undef CHECK_FMT_STRING 889 int tried_to_init = 0;
899 if (driver_name ==
NULL) {
903 for (i = 0; (!initialized) && (bootstrap[i]); ++
i) {
915 initialized = backend->
init(¤t_audio.
impl);
920 if (!tried_to_init) {
922 SDL_SetError(
"Audio target '%s' not available", driver_name);
939 #ifdef HAVE_LIBSAMPLERATE_H 952 return current_audio.
name;
1033 for (i--; i >
index; i--, item = item->
next) {
1037 retval = item->name;
1042 if (retval ==
NULL) {
1057 if (device->
id > 0) {
1060 if (opendev == device) {
1061 open_devices[device->
id - 1] =
NULL;
1097 if (orig->
freq == 0) {
1098 const char *env =
SDL_getenv(
"SDL_AUDIO_FREQUENCY");
1099 if ((!env) || ((prepared->
freq =
SDL_atoi(env)) == 0)) {
1100 prepared->
freq = 22050;
1105 const char *env =
SDL_getenv(
"SDL_AUDIO_FORMAT");
1113 const char *env =
SDL_getenv(
"SDL_AUDIO_CHANNELS");
1130 const char *env =
SDL_getenv(
"SDL_AUDIO_SAMPLES");
1136 while (power2 < samples) {
1152 int allowed_changes,
int min_id)
1174 for (
id = min_id - 1;
id <
SDL_arraysize(open_devices);
id++) {
1175 if (open_devices[
id] ==
NULL) {
1186 obtained = &_obtained;
1193 if (devname ==
NULL) {
1194 devname =
SDL_getenv(
"SDL_AUDIO_DEVICE_NAME");
1215 if ((open_devices[i]) && (open_devices[
i]->
iscapture)) {
1228 if ((open_devices[i]) && (!open_devices[
i]->
iscapture)) {
1233 }
else if (devname !=
NULL) {
1253 if ((handle ==
NULL) && (devname !=
NULL)) {
1260 if (device ==
NULL) {
1264 device->
id =
id + 1;
1265 device->
spec = *obtained;
1283 if (current_audio.
impl.
OpenDevice(device, handle, devname, iscapture) < 0) {
1380 const size_t stacksize = is_internal_thread ? 64 * 1024 : 0;
1381 char threadname[64];
1383 SDL_snprintf(threadname,
sizeof (threadname),
"SDLAudio%c%d", (iscapture) ?
'C' :
'P', (
int) device->
id);
1410 if (open_devices[0] !=
NULL) {
1430 return (
id == 0) ? -1 : 0;
1436 int allowed_changes)
1439 allowed_changes, 2);
1531 if (!current_audio.
name) {
1550 #ifdef HAVE_LIBSAMPLERATE_H 1551 UnloadLibSampleRate();
1557 #define NUM_FORMATS 10 1630 if (device !=
NULL) {
static SDL_AudioDevice * open_devices[16]
struct SDL_PrivateAudioData * hidden
AudioBootStrap DSP_bootstrap
static int format_idx_sub
void SDL_LockAudioDevice(SDL_AudioDeviceID devid)
AudioBootStrap EMSCRIPTENAUDIO_bootstrap
#define SDL_AUDIO_ALLOW_FREQUENCY_CHANGE
void SDL_UnlockAudio(void)
static int SDL_CaptureAudio(void *devicep)
#define SDL_AudioStreamAvailable
GLuint GLfloat GLfloat GLfloat x1
AudioBootStrap NAS_bootstrap
SDL_AudioFormat SDL_FirstAudioFormat(SDL_AudioFormat format)
SDL_bool captureDevicesRemoved
void(* DetectDevices)(void)
int SDL_GetNumAudioDrivers(void)
int SDL_WriteToDataQueue(SDL_DataQueue *queue, const void *_data, const size_t _len)
int SDL_OpenAudio(SDL_AudioSpec *desired, SDL_AudioSpec *obtained)
const char * SDL_GetCurrentAudioDriver()
static void mark_device_removed(void *handle, SDL_AudioDeviceItem *devices, SDL_bool *removedFlag)
const char * SDL_GetAudioDriver(int index)
struct SDL_AudioDeviceItem * next
static void clean_out_device_list(SDL_AudioDeviceItem **devices, int *devCount, SDL_bool *removedFlag)
#define SDL_AudioStreamGet
static SDL_INLINE int add_output_device(const char *name, void *handle)
AudioBootStrap DISKAUDIO_bootstrap
static SDL_AudioFormat format_list[NUM_FORMATS][NUM_FORMATS]
AudioBootStrap ESD_bootstrap
int ProvidesOwnCallbackThread
SDL_AudioDeviceID SDL_OpenAudioDevice(const char *device, int iscapture, const SDL_AudioSpec *desired, SDL_AudioSpec *obtained, int allowed_changes)
void(* ThreadDeinit)(_THIS)
SDL_DataQueue * SDL_NewDataQueue(const size_t _packetlen, const size_t initialslack)
void(* PlayDevice)(_THIS)
AudioBootStrap PSPAUDIO_bootstrap
void(* WaitDevice)(_THIS)
void SDL_ClearQueuedAudio(SDL_AudioDeviceID devid)
void SDL_OpenedAudioDeviceDisconnected(SDL_AudioDevice *device)
#define SDL_InitSubSystem
static int SDL_RunAudio(void *devicep)
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
#define SDL_MixAudioFormat
Uint16 SDL_AudioFormat
Audio format flags.
AudioBootStrap COREAUDIO_bootstrap
Uint32 SDL_GetQueuedAudioSize(SDL_AudioDeviceID devid)
static Uint8 * SDL_AudioGetDeviceBuf_Default(_THIS)
char name[SDL_VARIABLE_LENGTH_ARRAY]
AudioBootStrap SNDIO_bootstrap
AudioBootStrap HAIKUAUDIO_bootstrap
static void SDL_AudioUnlockDevice_Default(SDL_AudioDevice *device)
static SDL_AudioDriver current_audio
void(* UnlockDevice)(_THIS)
int OnlyHasDefaultCaptureDevice
SDL_AudioFormat SDL_NextAudioFormat(void)
GLuint const GLchar * name
#define SDL_AUDIO_ALLOW_CHANNELS_CHANGE
SDL_mutex * detectionLock
#define SDL_LIBSAMPLERATE_DYNAMIC
AudioBootStrap SUNAUDIO_bootstrap
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
static SDL_AudioDeviceID device
SDL_Thread * SDL_CreateThreadInternal(int(*fn)(void *), const char *name, const size_t stacksize, void *data)
static void SDL_AudioDeinitialize_Default(void)
void(* ThreadInit)(_THIS)
int OnlyHasDefaultOutputDevice
SDL_AudioStatus SDL_GetAudioDeviceStatus(SDL_AudioDeviceID devid)
#define SDL_GetEventState(type)
EGLImageKHR EGLint EGLint * handle
AudioBootStrap FUSIONSOUND_bootstrap
AudioBootStrap WASAPI_bootstrap
void(* SDL_AudioCallback)(void *userdata, Uint8 *stream, int len)
void SDL_RemoveAudioDevice(const int iscapture, void *handle)
static void SDL_AudioWaitDevice_Default(_THIS)
static void SDL_AudioLockOrUnlockDeviceWithNoMixerLock(SDL_AudioDevice *device)
#define SDL_AUDIO_BITSIZE(x)
void(* PrepareToClose)(_THIS)
#define SDL_AudioStreamPut
#define SDL_AUDIO_ALLOW_ANY_CHANGE
void SDL_FreeResampleFilter(void)
AudioBootStrap QSAAUDIO_bootstrap
void(* Deinitialize)(void)
static int prepare_audiospec(const SDL_AudioSpec *orig, SDL_AudioSpec *prepared)
void SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
size_t SDL_ReadFromDataQueue(SDL_DataQueue *queue, void *_buf, const size_t _len)
static int SDL_AudioOpenDevice_Default(_THIS, void *handle, const char *devname, int iscapture)
static Uint32 callback(Uint32 interval, void *param)
void SDL_PauseAudio(int pause_on)
void SDL_CalculateAudioSpec(SDL_AudioSpec *spec)
SDL_AudioStatus SDL_GetAudioStatus(void)
SDL_AudioCallback callback
static void SDL_AudioThreadInit_Default(_THIS)
static void SDL_AudioDetectDevices_Default(void)
static int SDL_AudioCaptureFromDevice_Default(_THIS, void *buffer, int buflen)
int SDL_QueueAudio(SDL_AudioDeviceID devid, const void *data, Uint32 len)
AudioBootStrap DUMMYAUDIO_bootstrap
static int add_audio_device(const char *name, void *handle, SDL_AudioDeviceItem **devices, int *devCount)
void(* LockDevice)(_THIS)
const char * SDL_GetAudioDeviceName(int index, int iscapture)
static void SDL_BufferQueueDrainCallback(void *userdata, Uint8 *stream, int len)
SDL_AudioDeviceItem * outputDevices
AudioBootStrap ANDROIDAUDIO_bootstrap
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
AudioBootStrap WINMM_bootstrap
AudioBootStrap ALSA_bootstrap
#define SDL_HINT_AUDIO_RESAMPLING_MODE
A variable controlling speed/quality tradeoff of audio resampling.
static int SDL_AudioGetPendingBytes_Default(_THIS)
#define SDL_assert(condition)
static const AudioBootStrap *const bootstrap[]
int(* OpenDevice)(_THIS, void *handle, const char *devname, int iscapture)
static void SDL_AudioPlayDevice_Default(_THIS)
#define SDL_OutOfMemory()
SDL_DataQueue * buffer_queue
SDL_bool outputDevicesRemoved
int(* CaptureFromDevice)(_THIS, void *buffer, int buflen)
static void free_device_list(SDL_AudioDeviceItem **devices, int *devCount)
static void SDL_BufferQueueFillCallback(void *userdata, Uint8 *stream, int len)
static SDL_AudioDeviceID open_audio_device(const char *devname, int iscapture, const SDL_AudioSpec *desired, SDL_AudioSpec *obtained, int allowed_changes, int min_id)
void(* CloseDevice)(_THIS)
void SDL_ClearDataQueue(SDL_DataQueue *queue, const size_t slack)
int AllowsArbitraryDeviceNames
static SDL_INLINE int add_capture_device(const char *name, void *handle)
static void SDL_AudioThreadDeinit_Default(_THIS)
static void SDL_AudioLockDevice_Default(SDL_AudioDevice *device)
void(* FreeDeviceHandle)(void *handle)
void(* FlushCapture)(_THIS)
AudioBootStrap PAUDIO_bootstrap
AudioBootStrap NACLAUDIO_bootstrap
AudioBootStrap NETBSDAUDIO_bootstrap
void SDL_CloseAudio(void)
AudioBootStrap JACK_bootstrap
size_t SDL_CountDataQueue(SDL_DataQueue *queue)
Uint8 *(* GetDeviceBuf)(_THIS)
#define SDL_NewAudioStream
#define SDL_AudioStreamClear
int SDL_GetNumAudioDevices(int iscapture)
AudioBootStrap ARTS_bootstrap
#define DEFAULT_OUTPUT_DEVNAME
void(* BeginLoopIteration)(_THIS)
#define SDL_AUDIO_ALLOW_FORMAT_CHANGE
static SDL_AudioFormat SDL_ParseAudioFormat(const char *string)
#define DEFAULT_INPUT_DEVNAME
AudioBootStrap DSOUND_bootstrap
#define SDL_arraysize(array)
static void SDL_AudioPrepareToClose_Default(_THIS)
int(* init)(SDL_AudioDriverImpl *impl)
#define SDL_FreeAudioStream
AudioBootStrap PULSEAUDIO_bootstrap
static void SDL_AudioCloseDevice_Default(_THIS)
int(* GetPendingBytes)(_THIS)
void * SDL_LoadFunction(void *handle, const char *name)
Uint32 SDL_DequeueAudio(SDL_AudioDeviceID devid, void *data, Uint32 len)
void SDL_FreeDataQueue(SDL_DataQueue *queue)
void SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
SDL_AudioSpec callbackspec
#define SDL_AUDIOBUFFERQUEUE_PACKETLEN
static void SDL_AudioBeginLoopIteration_Default(_THIS)
static void SDL_AudioFlushCapture_Default(_THIS)
void SDL_MixAudio(Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
#define CHECK_FMT_STRING(x)
void SDL_PauseAudioDevice(SDL_AudioDeviceID devid, int pause_on)
static SDL_AudioDevice * get_audio_device(SDL_AudioDeviceID id)
#define SDL_Unsupported()
static SDL_INLINE SDL_bool is_in_audio_device_thread(SDL_AudioDevice *device)
#define SDL_SetThreadPriority
static void finish_audio_entry_points_init(void)
SDL_AudioDeviceItem * inputDevices
static void SDL_AudioFreeDeviceHandle_Default(void *handle)
int SDL_AudioInit(const char *driver_name)
void SDL_AddAudioDevice(const int iscapture, const char *name, void *handle)
static void close_audio_device(SDL_AudioDevice *device)