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Diffstat (limited to '3rdparty/SDL2/src/audio/SDL_sysaudio.h')
-rw-r--r--3rdparty/SDL2/src/audio/SDL_sysaudio.h205
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diff --git a/3rdparty/SDL2/src/audio/SDL_sysaudio.h b/3rdparty/SDL2/src/audio/SDL_sysaudio.h
deleted file mode 100644
index 943169bf7c1..00000000000
--- a/3rdparty/SDL2/src/audio/SDL_sysaudio.h
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../SDL_internal.h"
-
-#ifndef _SDL_sysaudio_h
-#define _SDL_sysaudio_h
-
-#include "SDL_mutex.h"
-#include "SDL_thread.h"
-
-/* !!! FIXME: These are wordy and unlocalized... */
-#define DEFAULT_OUTPUT_DEVNAME "System audio output device"
-#define DEFAULT_INPUT_DEVNAME "System audio capture device"
-
-/* The SDL audio driver */
-typedef struct SDL_AudioDevice SDL_AudioDevice;
-#define _THIS SDL_AudioDevice *_this
-
-/* Audio targets should call this as devices are added to the system (such as
- a USB headset being plugged in), and should also be called for
- for every device found during DetectDevices(). */
-extern void SDL_AddAudioDevice(const int iscapture, const char *name, void *handle);
-
-/* Audio targets should call this as devices are removed, so SDL can update
- its list of available devices. */
-extern void SDL_RemoveAudioDevice(const int iscapture, void *handle);
-
-/* Audio targets should call this if an opened audio device is lost while
- being used. This can happen due to i/o errors, or a device being unplugged,
- etc. If the device is totally gone, please also call SDL_RemoveAudioDevice()
- as appropriate so SDL's list of devices is accurate. */
-extern void SDL_OpenedAudioDeviceDisconnected(SDL_AudioDevice *device);
-
-
-/* This is the size of a packet when using SDL_QueueAudio(). We allocate
- these as necessary and pool them, under the assumption that we'll
- eventually end up with a handful that keep recycling, meeting whatever
- the app needs. We keep packing data tightly as more arrives to avoid
- wasting space, and if we get a giant block of data, we'll split them
- into multiple packets behind the scenes. My expectation is that most
- apps will have 2-3 of these in the pool. 8k should cover most needs, but
- if this is crippling for some embedded system, we can #ifdef this.
- The system preallocates enough packets for 2 callbacks' worth of data. */
-#define SDL_AUDIOBUFFERQUEUE_PACKETLEN (8 * 1024)
-
-/* Used by apps that queue audio instead of using the callback. */
-typedef struct SDL_AudioBufferQueue
-{
- Uint8 data[SDL_AUDIOBUFFERQUEUE_PACKETLEN]; /* packet data. */
- Uint32 datalen; /* bytes currently in use in this packet. */
- Uint32 startpos; /* bytes currently consumed in this packet. */
- struct SDL_AudioBufferQueue *next; /* next item in linked list. */
-} SDL_AudioBufferQueue;
-
-typedef struct SDL_AudioDriverImpl
-{
- void (*DetectDevices) (void);
- int (*OpenDevice) (_THIS, void *handle, const char *devname, int iscapture);
- void (*ThreadInit) (_THIS); /* Called by audio thread at start */
- void (*WaitDevice) (_THIS);
- void (*PlayDevice) (_THIS);
- int (*GetPendingBytes) (_THIS);
- Uint8 *(*GetDeviceBuf) (_THIS);
- int (*CaptureFromDevice) (_THIS, void *buffer, int buflen);
- void (*FlushCapture) (_THIS);
- void (*PrepareToClose) (_THIS); /**< Called between run and draining wait for playback devices */
- void (*CloseDevice) (_THIS);
- void (*LockDevice) (_THIS);
- void (*UnlockDevice) (_THIS);
- void (*FreeDeviceHandle) (void *handle); /**< SDL is done with handle from SDL_AddAudioDevice() */
- void (*Deinitialize) (void);
-
- /* !!! FIXME: add pause(), so we can optimize instead of mixing silence. */
-
- /* Some flags to push duplicate code into the core and reduce #ifdefs. */
- /* !!! FIXME: these should be SDL_bool */
- int ProvidesOwnCallbackThread;
- int SkipMixerLock;
- int HasCaptureSupport;
- int OnlyHasDefaultOutputDevice;
- int OnlyHasDefaultCaptureDevice;
- int AllowsArbitraryDeviceNames;
-} SDL_AudioDriverImpl;
-
-
-typedef struct SDL_AudioDeviceItem
-{
- void *handle;
- struct SDL_AudioDeviceItem *next;
- #if (defined(__GNUC__) && (__GNUC__ <= 2))
- char name[1]; /* actually variable length. */
- #else
- char name[];
- #endif
-} SDL_AudioDeviceItem;
-
-
-typedef struct SDL_AudioDriver
-{
- /* * * */
- /* The name of this audio driver */
- const char *name;
-
- /* * * */
- /* The description of this audio driver */
- const char *desc;
-
- SDL_AudioDriverImpl impl;
-
- /* A mutex for device detection */
- SDL_mutex *detectionLock;
- SDL_bool captureDevicesRemoved;
- SDL_bool outputDevicesRemoved;
- int outputDeviceCount;
- int inputDeviceCount;
- SDL_AudioDeviceItem *outputDevices;
- SDL_AudioDeviceItem *inputDevices;
-} SDL_AudioDriver;
-
-
-/* Streamer */
-typedef struct
-{
- Uint8 *buffer;
- int max_len; /* the maximum length in bytes */
- int read_pos, write_pos; /* the position of the write and read heads in bytes */
-} SDL_AudioStreamer;
-
-
-/* Define the SDL audio driver structure */
-struct SDL_AudioDevice
-{
- /* * * */
- /* Data common to all devices */
- SDL_AudioDeviceID id;
-
- /* The current audio specification (shared with audio thread) */
- SDL_AudioSpec spec;
-
- /* An audio conversion block for audio format emulation */
- SDL_AudioCVT convert;
-
- /* The streamer, if sample rate conversion necessitates it */
- int use_streamer;
- SDL_AudioStreamer streamer;
-
- /* Current state flags */
- SDL_atomic_t shutdown; /* true if we are signaling the play thread to end. */
- SDL_atomic_t enabled; /* true if device is functioning and connected. */
- SDL_atomic_t paused;
- SDL_bool iscapture;
-
- /* Fake audio buffer for when the audio hardware is busy */
- Uint8 *fake_stream;
-
- /* A mutex for locking the mixing buffers */
- SDL_mutex *mixer_lock;
-
- /* A thread to feed the audio device */
- SDL_Thread *thread;
- SDL_threadID threadid;
-
- /* Queued buffers (if app not using callback). */
- SDL_AudioBufferQueue *buffer_queue_head; /* device fed from here. */
- SDL_AudioBufferQueue *buffer_queue_tail; /* queue fills to here. */
- SDL_AudioBufferQueue *buffer_queue_pool; /* these are unused packets. */
- Uint32 queued_bytes; /* number of bytes of audio data in the queue. */
-
- /* * * */
- /* Data private to this driver */
- struct SDL_PrivateAudioData *hidden;
-
- void *handle;
-};
-#undef _THIS
-
-typedef struct AudioBootStrap
-{
- const char *name;
- const char *desc;
- int (*init) (SDL_AudioDriverImpl * impl);
- int demand_only; /* 1==request explicitly, or it won't be available. */
-} AudioBootStrap;
-
-#endif /* _SDL_sysaudio_h */
-
-/* vi: set ts=4 sw=4 expandtab: */