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Diffstat (limited to '3rdparty/SDL2/src/audio/bsd/SDL_bsdaudio.c')
-rw-r--r--3rdparty/SDL2/src/audio/bsd/SDL_bsdaudio.c418
1 files changed, 0 insertions, 418 deletions
diff --git a/3rdparty/SDL2/src/audio/bsd/SDL_bsdaudio.c b/3rdparty/SDL2/src/audio/bsd/SDL_bsdaudio.c
deleted file mode 100644
index 6a970b9c70a..00000000000
--- a/3rdparty/SDL2/src/audio/bsd/SDL_bsdaudio.c
+++ /dev/null
@@ -1,418 +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_BSD
-
-/*
- * Driver for native OpenBSD/NetBSD audio(4).
- * vedge@vedge.com.ar.
- */
-
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/time.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/audioio.h>
-
-#include "SDL_timer.h"
-#include "SDL_audio.h"
-#include "../SDL_audio_c.h"
-#include "../SDL_audiodev_c.h"
-#include "SDL_bsdaudio.h"
-
-/* Use timer for synchronization */
-/* #define USE_TIMER_SYNC */
-
-/* #define DEBUG_AUDIO */
-/* #define DEBUG_AUDIO_STREAM */
-
-
-static void
-BSDAUDIO_DetectDevices(void)
-{
- SDL_EnumUnixAudioDevices(0, NULL);
-}
-
-
-static void
-BSDAUDIO_Status(_THIS)
-{
-#ifdef DEBUG_AUDIO
- /* *INDENT-OFF* */
- audio_info_t info;
- const audio_prinfo *prinfo;
-
- if (ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info) < 0) {
- fprintf(stderr, "AUDIO_GETINFO failed.\n");
- return;
- }
-
- prinfo = this->iscapture ? &info.play : &info.record;
-
- fprintf(stderr, "\n"
- "[%s info]\n"
- "buffer size : %d bytes\n"
- "sample rate : %i Hz\n"
- "channels : %i\n"
- "precision : %i-bit\n"
- "encoding : 0x%x\n"
- "seek : %i\n"
- "sample count : %i\n"
- "EOF count : %i\n"
- "paused : %s\n"
- "error occured : %s\n"
- "waiting : %s\n"
- "active : %s\n"
- "",
- this->iscapture ? "record" : "play",
- prinfo->buffer_size,
- prinfo->sample_rate,
- prinfo->channels,
- prinfo->precision,
- prinfo->encoding,
- prinfo->seek,
- prinfo->samples,
- prinfo->eof,
- prinfo->pause ? "yes" : "no",
- prinfo->error ? "yes" : "no",
- prinfo->waiting ? "yes" : "no",
- prinfo->active ? "yes" : "no");
-
- fprintf(stderr, "\n"
- "[audio info]\n"
- "monitor_gain : %i\n"
- "hw block size : %d bytes\n"
- "hi watermark : %i\n"
- "lo watermark : %i\n"
- "audio mode : %s\n"
- "",
- info.monitor_gain,
- info.blocksize,
- info.hiwat, info.lowat,
- (info.mode == AUMODE_PLAY) ? "PLAY"
- : (info.mode = AUMODE_RECORD) ? "RECORD"
- : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL" : "?"));
- /* *INDENT-ON* */
-#endif /* DEBUG_AUDIO */
-}
-
-
-/* This function waits until it is possible to write a full sound buffer */
-static void
-BSDAUDIO_WaitDevice(_THIS)
-{
-#ifndef USE_BLOCKING_WRITES /* Not necessary when using blocking writes */
- /* See if we need to use timed audio synchronization */
- if (this->hidden->frame_ticks) {
- /* Use timer for general audio synchronization */
- Sint32 ticks;
-
- ticks = ((Sint32) (this->hidden->next_frame - SDL_GetTicks())) - FUDGE_TICKS;
- if (ticks > 0) {
- SDL_Delay(ticks);
- }
- } else {
- /* Use select() for audio synchronization */
- fd_set fdset;
- struct timeval timeout;
-
- FD_ZERO(&fdset);
- FD_SET(this->hidden->audio_fd, &fdset);
- timeout.tv_sec = 10;
- timeout.tv_usec = 0;
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Waiting for audio to get ready\n");
-#endif
- if (select(this->hidden->audio_fd + 1, NULL, &fdset, NULL, &timeout)
- <= 0) {
- const char *message =
- "Audio timeout - buggy audio driver? (disabled)";
- /* In general we should never print to the screen,
- but in this case we have no other way of letting
- the user know what happened.
- */
- fprintf(stderr, "SDL: %s\n", message);
- SDL_OpenedAudioDeviceDisconnected(this);
- /* Don't try to close - may hang */
- this->hidden->audio_fd = -1;
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Done disabling audio\n");
-#endif
- }
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Ready!\n");
-#endif
- }
-#endif /* !USE_BLOCKING_WRITES */
-}
-
-static void
-BSDAUDIO_PlayDevice(_THIS)
-{
- int written, p = 0;
-
- /* Write the audio data, checking for EAGAIN on broken audio drivers */
- do {
- written = write(this->hidden->audio_fd,
- &this->hidden->mixbuf[p], this->hidden->mixlen - p);
-
- if (written > 0)
- p += written;
- if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR) {
- /* Non recoverable error has occurred. It should be reported!!! */
- perror("audio");
- break;
- }
-
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Wrote %d bytes of audio data\n", written);
-#endif
-
- if (p < this->hidden->mixlen
- || ((written < 0) && ((errno == 0) || (errno == EAGAIN)))) {
- SDL_Delay(1); /* Let a little CPU time go by */
- }
- } while (p < this->hidden->mixlen);
-
- /* If timer synchronization is enabled, set the next write frame */
- if (this->hidden->frame_ticks) {
- this->hidden->next_frame += this->hidden->frame_ticks;
- }
-
- /* If we couldn't write, assume fatal error for now */
- if (written < 0) {
- SDL_OpenedAudioDeviceDisconnected(this);
- }
-}
-
-static Uint8 *
-BSDAUDIO_GetDeviceBuf(_THIS)
-{
- return (this->hidden->mixbuf);
-}
-
-
-static int
-BSDAUDIO_CaptureFromDevice(_THIS, void *_buffer, int buflen)
-{
- Uint8 *buffer = (Uint8 *) _buffer;
- int br, p = 0;
-
- /* Write the audio data, checking for EAGAIN on broken audio drivers */
- do {
- br = read(this->hidden->audio_fd, buffer + p, buflen - p);
- if (br > 0)
- p += br;
- if (br == -1 && errno != 0 && errno != EAGAIN && errno != EINTR) {
- /* Non recoverable error has occurred. It should be reported!!! */
- perror("audio");
- return p ? p : -1;
- }
-
-#ifdef DEBUG_AUDIO
- fprintf(stderr, "Captured %d bytes of audio data\n", br);
-#endif
-
- if (p < buflen
- || ((br < 0) && ((errno == 0) || (errno == EAGAIN)))) {
- SDL_Delay(1); /* Let a little CPU time go by */
- }
- } while (p < buflen);
-}
-
-static void
-BSDAUDIO_FlushCapture(_THIS)
-{
- audio_info_t info;
- size_t remain;
- Uint8 buf[512];
-
- if (ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info) < 0) {
- return; /* oh well. */
- }
-
- remain = (size_t) (info.record.samples * (SDL_AUDIO_BITSIZE(this->spec.format) / 8));
- while (remain > 0) {
- const size_t len = SDL_min(sizeof (buf), remain);
- const int br = read(this->hidden->audio_fd, buf, len);
- if (br <= 0) {
- return; /* oh well. */
- }
- remain -= br;
- }
-}
-
-static void
-BSDAUDIO_CloseDevice(_THIS)
-{
- if (this->hidden->audio_fd >= 0) {
- close(this->hidden->audio_fd);
- }
- SDL_free(this->hidden->mixbuf);
- SDL_free(this->hidden);
-}
-
-static int
-BSDAUDIO_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
-{
- const int flags = iscapture ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT;
- SDL_AudioFormat format = 0;
- audio_info_t info;
- audio_prinfo *prinfo = iscapture ? &info.play : &info.record;
-
- /* We don't care what the devname is...we'll try to open anything. */
- /* ...but default to first name in the list... */
- if (devname == NULL) {
- devname = SDL_GetAudioDeviceName(0, iscapture);
- if (devname == NULL) {
- return SDL_SetError("No such audio device");
- }
- }
-
- /* Initialize all variables that we clean on shutdown */
- this->hidden = (struct SDL_PrivateAudioData *)
- SDL_malloc((sizeof *this->hidden));
- if (this->hidden == NULL) {
- return SDL_OutOfMemory();
- }
- SDL_zerop(this->hidden);
-
- /* Open the audio device */
- this->hidden->audio_fd = open(devname, flags, 0);
- if (this->hidden->audio_fd < 0) {
- return SDL_SetError("Couldn't open %s: %s", devname, strerror(errno));
- }
-
- AUDIO_INITINFO(&info);
-
- /* Calculate the final parameters for this audio specification */
- SDL_CalculateAudioSpec(&this->spec);
-
- /* Set to play mode */
- info.mode = iscapture ? AUMODE_RECORD : AUMODE_PLAY;
- if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) < 0) {
- return SDL_SetError("Couldn't put device into play mode");
- }
-
- AUDIO_INITINFO(&info);
- for (format = SDL_FirstAudioFormat(this->spec.format);
- format; format = SDL_NextAudioFormat()) {
- switch (format) {
- case AUDIO_U8:
- prinfo->encoding = AUDIO_ENCODING_ULINEAR;
- prinfo->precision = 8;
- break;
- case AUDIO_S8:
- prinfo->encoding = AUDIO_ENCODING_SLINEAR;
- prinfo->precision = 8;
- break;
- case AUDIO_S16LSB:
- prinfo->encoding = AUDIO_ENCODING_SLINEAR_LE;
- prinfo->precision = 16;
- break;
- case AUDIO_S16MSB:
- prinfo->encoding = AUDIO_ENCODING_SLINEAR_BE;
- prinfo->precision = 16;
- break;
- case AUDIO_U16LSB:
- prinfo->encoding = AUDIO_ENCODING_ULINEAR_LE;
- prinfo->precision = 16;
- break;
- case AUDIO_U16MSB:
- prinfo->encoding = AUDIO_ENCODING_ULINEAR_BE;
- prinfo->precision = 16;
- break;
- default:
- continue;
- }
-
- if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) == 0) {
- break;
- }
- }
-
- if (!format) {
- return SDL_SetError("No supported encoding for 0x%x", this->spec.format);
- }
-
- this->spec.format = format;
-
- AUDIO_INITINFO(&info);
- prinfo->channels = this->spec.channels;
- if (ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info) == -1) {
- this->spec.channels = 1;
- }
- AUDIO_INITINFO(&info);
- prinfo->sample_rate = this->spec.freq;
- info.blocksize = this->spec.size;
- info.hiwat = 5;
- info.lowat = 3;
- (void) ioctl(this->hidden->audio_fd, AUDIO_SETINFO, &info);
- (void) ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info);
- this->spec.freq = prinfo->sample_rate;
-
- if (!iscapture) {
- /* 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->spec.size);
- }
-
- BSDAUDIO_Status(this);
-
- /* We're ready to rock and roll. :-) */
- return 0;
-}
-
-static int
-BSDAUDIO_Init(SDL_AudioDriverImpl * impl)
-{
- /* Set the function pointers */
- impl->DetectDevices = BSDAUDIO_DetectDevices;
- impl->OpenDevice = BSDAUDIO_OpenDevice;
- impl->PlayDevice = BSDAUDIO_PlayDevice;
- impl->WaitDevice = BSDAUDIO_WaitDevice;
- impl->GetDeviceBuf = BSDAUDIO_GetDeviceBuf;
- impl->CloseDevice = BSDAUDIO_CloseDevice;
- impl->CaptureFromDevice = BSDAUDIO_CaptureFromDevice;
- impl->FlushCapture = BSDAUDIO_FlushCapture;
-
- impl->HasCaptureSupport = SDL_TRUE;
- impl->AllowsArbitraryDeviceNames = 1;
-
- return 1; /* this audio target is available. */
-}
-
-
-AudioBootStrap BSD_AUDIO_bootstrap = {
- "bsd", "BSD audio", BSDAUDIO_Init, 0
-};
-
-#endif /* SDL_AUDIO_DRIVER_BSD */
-
-/* vi: set ts=4 sw=4 expandtab: */