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Diffstat (limited to '3rdparty/SDL2/src/audio/sndio/SDL_sndioaudio.c')
-rw-r--r--3rdparty/SDL2/src/audio/sndio/SDL_sndioaudio.c315
1 files changed, 0 insertions, 315 deletions
diff --git a/3rdparty/SDL2/src/audio/sndio/SDL_sndioaudio.c b/3rdparty/SDL2/src/audio/sndio/SDL_sndioaudio.c
deleted file mode 100644
index fb7d78ff17f..00000000000
--- a/3rdparty/SDL2/src/audio/sndio/SDL_sndioaudio.c
+++ /dev/null
@@ -1,315 +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"
-
-#if SDL_AUDIO_DRIVER_SNDIO
-
-/* OpenBSD sndio target */
-
-#if HAVE_STDIO_H
-#include <stdio.h>
-#endif
-
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-
-#include <unistd.h>
-
-#include "SDL_audio.h"
-#include "../SDL_audio_c.h"
-#include "SDL_sndioaudio.h"
-
-#ifdef SDL_AUDIO_DRIVER_SNDIO_DYNAMIC
-#include "SDL_loadso.h"
-#endif
-
-static struct sio_hdl * (*SNDIO_sio_open)(const char *, unsigned int, int);
-static void (*SNDIO_sio_close)(struct sio_hdl *);
-static int (*SNDIO_sio_setpar)(struct sio_hdl *, struct sio_par *);
-static int (*SNDIO_sio_getpar)(struct sio_hdl *, struct sio_par *);
-static int (*SNDIO_sio_start)(struct sio_hdl *);
-static int (*SNDIO_sio_stop)(struct sio_hdl *);
-static size_t (*SNDIO_sio_read)(struct sio_hdl *, void *, size_t);
-static size_t (*SNDIO_sio_write)(struct sio_hdl *, const void *, size_t);
-static void (*SNDIO_sio_initpar)(struct sio_par *);
-
-#ifdef SDL_AUDIO_DRIVER_SNDIO_DYNAMIC
-static const char *sndio_library = SDL_AUDIO_DRIVER_SNDIO_DYNAMIC;
-static void *sndio_handle = NULL;
-
-static int
-load_sndio_sym(const char *fn, void **addr)
-{
- *addr = SDL_LoadFunction(sndio_handle, fn);
- if (*addr == NULL) {
- /* Don't call SDL_SetError(): SDL_LoadFunction already did. */
- return 0;
- }
-
- return 1;
-}
-
-/* cast funcs to char* first, to please GCC's strict aliasing rules. */
-#define SDL_SNDIO_SYM(x) \
- if (!load_sndio_sym(#x, (void **) (char *) &SNDIO_##x)) return -1
-#else
-#define SDL_SNDIO_SYM(x) SNDIO_##x = x
-#endif
-
-static int
-load_sndio_syms(void)
-{
- SDL_SNDIO_SYM(sio_open);
- SDL_SNDIO_SYM(sio_close);
- SDL_SNDIO_SYM(sio_setpar);
- SDL_SNDIO_SYM(sio_getpar);
- SDL_SNDIO_SYM(sio_start);
- SDL_SNDIO_SYM(sio_stop);
- SDL_SNDIO_SYM(sio_read);
- SDL_SNDIO_SYM(sio_write);
- SDL_SNDIO_SYM(sio_initpar);
- return 0;
-}
-
-#undef SDL_SNDIO_SYM
-
-#ifdef SDL_AUDIO_DRIVER_SNDIO_DYNAMIC
-
-static void
-UnloadSNDIOLibrary(void)
-{
- if (sndio_handle != NULL) {
- SDL_UnloadObject(sndio_handle);
- sndio_handle = NULL;
- }
-}
-
-static int
-LoadSNDIOLibrary(void)
-{
- int retval = 0;
- if (sndio_handle == NULL) {
- sndio_handle = SDL_LoadObject(sndio_library);
- if (sndio_handle == NULL) {
- retval = -1;
- /* Don't call SDL_SetError(): SDL_LoadObject already did. */
- } else {
- retval = load_sndio_syms();
- if (retval < 0) {
- UnloadSNDIOLibrary();
- }
- }
- }
- return retval;
-}
-
-#else
-
-static void
-UnloadSNDIOLibrary(void)
-{
-}
-
-static int
-LoadSNDIOLibrary(void)
-{
- load_sndio_syms();
- return 0;
-}
-
-#endif /* SDL_AUDIO_DRIVER_SNDIO_DYNAMIC */
-
-
-
-
-static void
-SNDIO_WaitDevice(_THIS)
-{
- /* no-op; SNDIO_sio_write() blocks if necessary. */
-}
-
-static void
-SNDIO_PlayDevice(_THIS)
-{
- const int written = SNDIO_sio_write(this->hidden->dev,
- this->hidden->mixbuf,
- this->hidden->mixlen);
-
- /* If we couldn't write, assume fatal error for now */
- if ( written == 0 ) {
- SDL_OpenedAudioDeviceDisconnected(this);
- }
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Wrote %d bytes of audio data\n", written);
-#endif
-}
-
-static Uint8 *
-SNDIO_GetDeviceBuf(_THIS)
-{
- return this->hidden->mixbuf;
-}
-
-static void
-SNDIO_CloseDevice(_THIS)
-{
- if ( this->hidden->dev != NULL ) {
- SNDIO_sio_stop(this->hidden->dev);
- SNDIO_sio_close(this->hidden->dev);
- }
- SDL_free(this->hidden->mixbuf);
- SDL_free(this->hidden);
-}
-
-static int
-SNDIO_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
-{
- SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
- struct sio_par par;
- int status;
-
- this->hidden = (struct SDL_PrivateAudioData *)
- SDL_malloc(sizeof(*this->hidden));
- if (this->hidden == NULL) {
- return SDL_OutOfMemory();
- }
- SDL_zerop(this->hidden);
-
- this->hidden->mixlen = this->spec.size;
-
- /* !!! FIXME: SIO_DEVANY can be a specific device... */
- if ((this->hidden->dev = SNDIO_sio_open(SIO_DEVANY, SIO_PLAY, 0)) == NULL) {
- return SDL_SetError("sio_open() failed");
- }
-
- SNDIO_sio_initpar(&par);
-
- par.rate = this->spec.freq;
- par.pchan = this->spec.channels;
- par.round = this->spec.samples;
- par.appbufsz = par.round * 2;
-
- /* Try for a closest match on audio format */
- status = -1;
- while (test_format && (status < 0)) {
- if (!SDL_AUDIO_ISFLOAT(test_format)) {
- par.le = SDL_AUDIO_ISLITTLEENDIAN(test_format) ? 1 : 0;
- par.sig = SDL_AUDIO_ISSIGNED(test_format) ? 1 : 0;
- par.bits = SDL_AUDIO_BITSIZE(test_format);
-
- if (SNDIO_sio_setpar(this->hidden->dev, &par) == 0) {
- continue;
- }
- if (SNDIO_sio_getpar(this->hidden->dev, &par) == 0) {
- return SDL_SetError("sio_getpar() failed");
- }
- if (par.bps != SIO_BPS(par.bits)) {
- continue;
- }
- if ((par.bits == 8 * par.bps) || (par.msb)) {
- status = 0;
- break;
- }
- }
- test_format = SDL_NextAudioFormat();
- }
-
- if (status < 0) {
- return SDL_SetError("sndio: Couldn't find any hardware audio formats");
- }
-
- if ((par.bps == 4) && (par.sig) && (par.le))
- this->spec.format = AUDIO_S32LSB;
- else if ((par.bps == 4) && (par.sig) && (!par.le))
- this->spec.format = AUDIO_S32MSB;
- else if ((par.bps == 2) && (par.sig) && (par.le))
- this->spec.format = AUDIO_S16LSB;
- else if ((par.bps == 2) && (par.sig) && (!par.le))
- this->spec.format = AUDIO_S16MSB;
- else if ((par.bps == 2) && (!par.sig) && (par.le))
- this->spec.format = AUDIO_U16LSB;
- else if ((par.bps == 2) && (!par.sig) && (!par.le))
- this->spec.format = AUDIO_U16MSB;
- else if ((par.bps == 1) && (par.sig))
- this->spec.format = AUDIO_S8;
- else if ((par.bps == 1) && (!par.sig))
- this->spec.format = AUDIO_U8;
- else {
- return SDL_SetError("sndio: Got unsupported hardware audio format.");
- }
-
- this->spec.freq = par.rate;
- this->spec.channels = par.pchan;
- this->spec.samples = par.round;
-
- /* Calculate the final parameters for this audio specification */
- SDL_CalculateAudioSpec(&this->spec);
-
- /* Allocate mixing buffer */
- this->hidden->mixlen = this->spec.size;
- this->hidden->mixbuf = (Uint8 *) SDL_malloc(this->hidden->mixlen);
- if (this->hidden->mixbuf == NULL) {
- return SDL_OutOfMemory();
- }
- SDL_memset(this->hidden->mixbuf, this->spec.silence, this->hidden->mixlen);
-
- if (!SNDIO_sio_start(this->hidden->dev)) {
- return SDL_SetError("sio_start() failed");
- }
-
- /* We're ready to rock and roll. :-) */
- return 0;
-}
-
-static void
-SNDIO_Deinitialize(void)
-{
- UnloadSNDIOLibrary();
-}
-
-static int
-SNDIO_Init(SDL_AudioDriverImpl * impl)
-{
- if (LoadSNDIOLibrary() < 0) {
- return 0;
- }
-
- /* Set the function pointers */
- impl->OpenDevice = SNDIO_OpenDevice;
- impl->WaitDevice = SNDIO_WaitDevice;
- impl->PlayDevice = SNDIO_PlayDevice;
- impl->GetDeviceBuf = SNDIO_GetDeviceBuf;
- impl->CloseDevice = SNDIO_CloseDevice;
- impl->Deinitialize = SNDIO_Deinitialize;
- impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: sndio can handle multiple devices. */
-
- return 1; /* this audio target is available. */
-}
-
-AudioBootStrap SNDIO_bootstrap = {
- "sndio", "OpenBSD sndio", SNDIO_Init, 0
-};
-
-#endif /* SDL_AUDIO_DRIVER_SNDIO */
-
-/* vi: set ts=4 sw=4 expandtab: */