mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-25 12:17:04 +00:00
448 lines
11 KiB
C
448 lines
11 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
|
|
* Copyright (C) 2011-2014 - Chris Moeller
|
|
*
|
|
* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* RetroArch 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with RetroArch.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "../../driver.h"
|
|
#include "../../general.h"
|
|
#include <queues/fifo_buffer.h>
|
|
#include <stdlib.h>
|
|
#include <boolean.h>
|
|
#include <pthread.h>
|
|
|
|
#ifdef OSX
|
|
#include <CoreAudio/CoreAudio.h>
|
|
#else
|
|
#include <AudioToolbox/AudioToolbox.h>
|
|
#endif
|
|
|
|
#include <CoreAudio/CoreAudioTypes.h>
|
|
#include <AudioUnit/AudioUnit.h>
|
|
#include <AudioUnit/AUComponent.h>
|
|
|
|
typedef struct coreaudio
|
|
{
|
|
pthread_mutex_t lock;
|
|
pthread_cond_t cond;
|
|
|
|
#ifdef OSX_PPC
|
|
ComponentInstance dev;
|
|
#else
|
|
AudioComponentInstance dev;
|
|
#endif
|
|
bool dev_alive;
|
|
bool is_paused;
|
|
|
|
fifo_buffer_t *buffer;
|
|
bool nonblock;
|
|
size_t buffer_size;
|
|
} coreaudio_t;
|
|
|
|
static bool g_interrupted;
|
|
|
|
static void coreaudio_free(void *data)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
if (dev->dev_alive)
|
|
{
|
|
AudioOutputUnitStop(dev->dev);
|
|
#ifdef OSX_PPC
|
|
CloseComponent(dev->dev);
|
|
#else
|
|
AudioComponentInstanceDispose(dev->dev);
|
|
#endif
|
|
}
|
|
|
|
if (dev->buffer)
|
|
fifo_free(dev->buffer);
|
|
|
|
pthread_mutex_destroy(&dev->lock);
|
|
pthread_cond_destroy(&dev->cond);
|
|
|
|
free(dev);
|
|
}
|
|
|
|
static OSStatus audio_write_cb(void *userdata,
|
|
AudioUnitRenderActionFlags *action_flags,
|
|
const AudioTimeStamp *time_stamp, UInt32 bus_number,
|
|
UInt32 number_frames, AudioBufferList *io_data)
|
|
{
|
|
void *outbuf;
|
|
unsigned write_avail;
|
|
coreaudio_t *dev = (coreaudio_t*)userdata;
|
|
|
|
(void)time_stamp;
|
|
(void)bus_number;
|
|
(void)number_frames;
|
|
|
|
if (!io_data)
|
|
return noErr;
|
|
if (io_data->mNumberBuffers != 1)
|
|
return noErr;
|
|
|
|
write_avail = io_data->mBuffers[0].mDataByteSize;
|
|
outbuf = io_data->mBuffers[0].mData;
|
|
|
|
pthread_mutex_lock(&dev->lock);
|
|
|
|
if (fifo_read_avail(dev->buffer) < write_avail)
|
|
{
|
|
*action_flags = kAudioUnitRenderAction_OutputIsSilence;
|
|
|
|
/* Seems to be needed. */
|
|
memset(outbuf, 0, write_avail);
|
|
|
|
pthread_mutex_unlock(&dev->lock);
|
|
|
|
/* Technically possible to deadlock without. */
|
|
pthread_cond_signal(&dev->cond);
|
|
return noErr;
|
|
}
|
|
|
|
fifo_read(dev->buffer, outbuf, write_avail);
|
|
pthread_mutex_unlock(&dev->lock);
|
|
pthread_cond_signal(&dev->cond);
|
|
return noErr;
|
|
}
|
|
|
|
#ifdef OSX
|
|
static void choose_output_device(coreaudio_t *dev, const char* device)
|
|
{
|
|
unsigned i;
|
|
AudioDeviceID *devices;
|
|
AudioObjectPropertyAddress propaddr =
|
|
{
|
|
kAudioHardwarePropertyDevices,
|
|
kAudioObjectPropertyScopeGlobal,
|
|
kAudioObjectPropertyElementMaster
|
|
};
|
|
|
|
UInt32 size = 0, deviceCount;
|
|
|
|
if (AudioObjectGetPropertyDataSize(kAudioObjectSystemObject,
|
|
&propaddr, 0, 0, &size) != noErr)
|
|
return;
|
|
|
|
deviceCount = size / sizeof(AudioDeviceID);
|
|
devices = (AudioDeviceID*)malloc(size);
|
|
|
|
if (!devices || AudioObjectGetPropertyData(kAudioObjectSystemObject,
|
|
&propaddr, 0, 0, &size, devices) != noErr)
|
|
goto done;
|
|
|
|
propaddr.mScope = kAudioDevicePropertyScopeOutput;
|
|
propaddr.mSelector = kAudioDevicePropertyDeviceName;
|
|
size = 1024;
|
|
|
|
for (i = 0; i < deviceCount; i ++)
|
|
{
|
|
char device_name[1024];
|
|
device_name[0] = 0;
|
|
|
|
if (AudioObjectGetPropertyData(devices[i],
|
|
&propaddr, 0, 0, &size, device_name) == noErr
|
|
&& !strcmp(device_name, device))
|
|
{
|
|
AudioUnitSetProperty(dev->dev, kAudioOutputUnitProperty_CurrentDevice,
|
|
kAudioUnitScope_Global, 0, &devices[i], sizeof(AudioDeviceID));
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
done:
|
|
free(devices);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IOS
|
|
static void coreaudio_interrupt_listener(void *data, UInt32 interrupt_state)
|
|
{
|
|
(void)data;
|
|
g_interrupted = (interrupt_state == kAudioSessionBeginInterruption);
|
|
}
|
|
#endif
|
|
|
|
static void *coreaudio_init(const char *device,
|
|
unsigned rate, unsigned latency)
|
|
{
|
|
static bool session_initialized = false;
|
|
UInt32 i_size;
|
|
|
|
(void)session_initialized;
|
|
(void)device;
|
|
|
|
coreaudio_t *dev = (coreaudio_t*)calloc(1, sizeof(*dev));
|
|
if (!dev)
|
|
return NULL;
|
|
|
|
pthread_mutex_init(&dev->lock, NULL);
|
|
pthread_cond_init(&dev->cond, NULL);
|
|
|
|
#ifdef IOS
|
|
if (!session_initialized)
|
|
{
|
|
session_initialized = true;
|
|
AudioSessionInitialize(0, 0, coreaudio_interrupt_listener, 0);
|
|
AudioSessionSetActive(true);
|
|
}
|
|
#endif
|
|
|
|
// Create AudioComponent
|
|
#ifdef OSX_PPC
|
|
ComponentDescription desc = {0};
|
|
#else
|
|
AudioComponentDescription desc = {0};
|
|
#endif
|
|
desc.componentType = kAudioUnitType_Output;
|
|
#ifdef IOS
|
|
desc.componentSubType = kAudioUnitSubType_RemoteIO;
|
|
#else
|
|
desc.componentSubType = kAudioUnitSubType_HALOutput;
|
|
#endif
|
|
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
|
|
|
|
#ifdef OSX_PPC
|
|
Component comp = FindNextComponent(NULL, &desc);
|
|
#else
|
|
AudioComponent comp = AudioComponentFindNext(NULL, &desc);
|
|
#endif
|
|
if (comp == NULL)
|
|
goto error;
|
|
|
|
#ifdef OSX_PPC
|
|
if (OpenAComponent(comp, &dev->dev) != noErr)
|
|
#else
|
|
if (AudioComponentInstanceNew(comp, &dev->dev) != noErr)
|
|
#endif
|
|
goto error;
|
|
|
|
#ifdef OSX
|
|
if (device)
|
|
choose_output_device(dev, device);
|
|
#endif
|
|
|
|
dev->dev_alive = true;
|
|
|
|
// Set audio format
|
|
AudioStreamBasicDescription stream_desc = {0};
|
|
AudioStreamBasicDescription real_desc;
|
|
|
|
stream_desc.mSampleRate = rate;
|
|
stream_desc.mBitsPerChannel = sizeof(float) * CHAR_BIT;
|
|
stream_desc.mChannelsPerFrame = 2;
|
|
stream_desc.mBytesPerPacket = 2 * sizeof(float);
|
|
stream_desc.mBytesPerFrame = 2 * sizeof(float);
|
|
stream_desc.mFramesPerPacket = 1;
|
|
stream_desc.mFormatID = kAudioFormatLinearPCM;
|
|
stream_desc.mFormatFlags = kAudioFormatFlagIsFloat |
|
|
kAudioFormatFlagIsPacked | (is_little_endian() ?
|
|
0 : kAudioFormatFlagIsBigEndian);
|
|
|
|
if (AudioUnitSetProperty(dev->dev, kAudioUnitProperty_StreamFormat,
|
|
kAudioUnitScope_Input, 0, &stream_desc, sizeof(stream_desc)) != noErr)
|
|
goto error;
|
|
|
|
/* Check returned audio format. */
|
|
i_size = sizeof(real_desc);
|
|
if (AudioUnitGetProperty(dev->dev, kAudioUnitProperty_StreamFormat,
|
|
kAudioUnitScope_Input, 0, &real_desc, &i_size) != noErr)
|
|
goto error;
|
|
|
|
if (real_desc.mChannelsPerFrame != stream_desc.mChannelsPerFrame)
|
|
goto error;
|
|
if (real_desc.mBitsPerChannel != stream_desc.mBitsPerChannel)
|
|
goto error;
|
|
if (real_desc.mFormatFlags != stream_desc.mFormatFlags)
|
|
goto error;
|
|
if (real_desc.mFormatID != stream_desc.mFormatID)
|
|
goto error;
|
|
|
|
RARCH_LOG("[CoreAudio]: Using output sample rate of %.1f Hz\n",
|
|
(float)real_desc.mSampleRate);
|
|
g_settings.audio.out_rate = real_desc.mSampleRate;
|
|
|
|
|
|
/* Set channel layout (fails on iOS). */
|
|
#ifndef IOS
|
|
AudioChannelLayout layout = {0};
|
|
|
|
layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
|
|
if (AudioUnitSetProperty(dev->dev, kAudioUnitProperty_AudioChannelLayout,
|
|
kAudioUnitScope_Input, 0, &layout, sizeof(layout)) != noErr)
|
|
goto error;
|
|
#endif
|
|
|
|
/* Set callbacks and finish up. */
|
|
AURenderCallbackStruct cb = {0};
|
|
cb.inputProc = audio_write_cb;
|
|
cb.inputProcRefCon = dev;
|
|
|
|
if (AudioUnitSetProperty(dev->dev, kAudioUnitProperty_SetRenderCallback,
|
|
kAudioUnitScope_Input, 0, &cb, sizeof(cb)) != noErr)
|
|
goto error;
|
|
|
|
if (AudioUnitInitialize(dev->dev) != noErr)
|
|
goto error;
|
|
|
|
size_t fifo_size;
|
|
|
|
fifo_size = (latency * g_settings.audio.out_rate) / 1000;
|
|
fifo_size *= 2 * sizeof(float);
|
|
dev->buffer_size = fifo_size;
|
|
|
|
dev->buffer = fifo_new(fifo_size);
|
|
if (!dev->buffer)
|
|
goto error;
|
|
|
|
RARCH_LOG("[CoreAudio]: Using buffer size of %u bytes: (latency = %u ms)\n",
|
|
(unsigned)fifo_size, latency);
|
|
|
|
if (AudioOutputUnitStart(dev->dev) != noErr)
|
|
goto error;
|
|
|
|
return dev;
|
|
|
|
error:
|
|
RARCH_ERR("[CoreAudio]: Failed to initialize driver ...\n");
|
|
coreaudio_free(dev);
|
|
return NULL;
|
|
}
|
|
|
|
static ssize_t coreaudio_write(void *data, const void *buf_, size_t size)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
|
|
const uint8_t *buf = (const uint8_t*)buf_;
|
|
size_t written = 0;
|
|
|
|
#ifdef IOS
|
|
struct timeval time;
|
|
gettimeofday(&time, 0);
|
|
|
|
struct timespec timeout;
|
|
memset(&timeout, 0, sizeof(timeout));
|
|
timeout.tv_sec = time.tv_sec + 3;
|
|
timeout.tv_nsec = time.tv_usec * 1000;
|
|
#endif
|
|
|
|
while (!g_interrupted && size > 0)
|
|
{
|
|
size_t write_avail;
|
|
|
|
pthread_mutex_lock(&dev->lock);
|
|
|
|
write_avail = fifo_write_avail(dev->buffer);
|
|
if (write_avail > size)
|
|
write_avail = size;
|
|
|
|
fifo_write(dev->buffer, buf, write_avail);
|
|
buf += write_avail;
|
|
written += write_avail;
|
|
size -= write_avail;
|
|
|
|
if (dev->nonblock)
|
|
{
|
|
pthread_mutex_unlock(&dev->lock);
|
|
break;
|
|
}
|
|
|
|
#ifdef IOS
|
|
if (write_avail == 0 && pthread_cond_timedwait(
|
|
&dev->cond, &dev->lock, &timeout) == ETIMEDOUT)
|
|
g_interrupted = true;
|
|
#else
|
|
if (write_avail == 0)
|
|
pthread_cond_wait(&dev->cond, &dev->lock);
|
|
#endif
|
|
pthread_mutex_unlock(&dev->lock);
|
|
}
|
|
|
|
return written;
|
|
}
|
|
|
|
static void coreaudio_set_nonblock_state(void *data, bool state)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
if (dev)
|
|
dev->nonblock = state;
|
|
}
|
|
|
|
static bool coreaudio_alive(void *data)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
if (!dev)
|
|
return false;
|
|
return !dev->is_paused;
|
|
}
|
|
|
|
static bool coreaudio_stop(void *data)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
if (!dev)
|
|
return false;
|
|
dev->is_paused = (AudioOutputUnitStop(dev->dev) == noErr) ? true : false;
|
|
return dev->is_paused ? true : false;
|
|
}
|
|
|
|
static bool coreaudio_start(void *data)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
if (!dev)
|
|
return false;
|
|
dev->is_paused = (AudioOutputUnitStart(dev->dev) == noErr) ? false : true;
|
|
return dev->is_paused ? false : true;
|
|
}
|
|
|
|
static bool coreaudio_use_float(void *data)
|
|
{
|
|
(void)data;
|
|
return true;
|
|
}
|
|
|
|
static size_t coreaudio_write_avail(void *data)
|
|
{
|
|
size_t avail;
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
|
|
pthread_mutex_lock(&dev->lock);
|
|
avail = fifo_write_avail(dev->buffer);
|
|
pthread_mutex_unlock(&dev->lock);
|
|
|
|
return avail;
|
|
}
|
|
|
|
static size_t coreaudio_buffer_size(void *data)
|
|
{
|
|
coreaudio_t *dev = (coreaudio_t*)data;
|
|
return dev->buffer_size;
|
|
}
|
|
|
|
audio_driver_t audio_coreaudio = {
|
|
coreaudio_init,
|
|
coreaudio_write,
|
|
coreaudio_stop,
|
|
coreaudio_start,
|
|
coreaudio_alive,
|
|
coreaudio_set_nonblock_state,
|
|
coreaudio_free,
|
|
coreaudio_use_float,
|
|
"coreaudio",
|
|
coreaudio_write_avail,
|
|
coreaudio_buffer_size,
|
|
};
|