diff --git a/audio/audio_driver.c b/audio/audio_driver.c
index b7eb32aa69..161b5989b4 100644
--- a/audio/audio_driver.c
+++ b/audio/audio_driver.c
@@ -125,6 +125,9 @@ static const audio_driver_t *audio_drivers[] = {
#endif
#ifdef SWITCH
&audio_switch,
+#ifdef HAVE_LIBNX
+ &audio_switch_thread,
+#endif
#endif
&audio_null,
NULL,
diff --git a/audio/audio_driver.h b/audio/audio_driver.h
index a2cdad4f41..1d67fa0768 100644
--- a/audio/audio_driver.h
+++ b/audio/audio_driver.h
@@ -338,6 +338,7 @@ extern audio_driver_t audio_psp;
extern audio_driver_t audio_ctr_csnd;
extern audio_driver_t audio_ctr_dsp;
extern audio_driver_t audio_switch;
+extern audio_driver_t audio_switch_thread;
extern audio_driver_t audio_rwebaudio;
extern audio_driver_t audio_null;
diff --git a/audio/drivers/switch_audio.c b/audio/drivers/switch_audio.c
index 3a06cc7398..322750bba0 100644
--- a/audio/drivers/switch_audio.c
+++ b/audio/drivers/switch_audio.c
@@ -30,14 +30,15 @@ static const size_t sample_buffer_size = ((max_num_samples * num_channels * size
typedef struct
{
- audio_output_t output;
- handle_t event;
- audio_output_buffer_t buffers[3];
- audio_output_buffer_t *current_buffer;
bool blocking;
bool is_paused;
uint64_t last_append;
unsigned latency;
+ audio_output_buffer_t buffers[3];
+ audio_output_buffer_t *current_buffer;
+
+ audio_output_t output;
+ handle_t event;
} switch_audio_t;
static ssize_t switch_audio_write(void *data, const void *buf, size_t size)
diff --git a/audio/drivers/switch_nx_audio.c b/audio/drivers/switch_nx_audio.c
new file mode 100644
index 0000000000..9a31eb9211
--- /dev/null
+++ b/audio/drivers/switch_nx_audio.c
@@ -0,0 +1,284 @@
+/* RetroArch - A frontend for libretro.
+ *
+ * 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 .
+ */
+
+#include
+#include
+#include
+#include
+
+#include
+
+#include "../audio_driver.h"
+#include "../../verbosity.h"
+
+#include "../../tasks/tasks_internal.h"
+
+typedef struct
+{
+ bool blocking;
+ bool is_paused;
+ uint64_t last_append;
+ unsigned latency;
+ AudioOutBuffer buffers[5];
+ AudioOutBuffer *current_buffer;
+} switch_audio_t;
+
+static bool switch_tasks_finder(retro_task_t *task, void *userdata)
+{
+ return task;
+}
+task_finder_data_t switch_tasks_finder_data = {switch_tasks_finder, NULL};
+
+#define SAMPLERATE 48000
+#define CHANNELCOUNT 2
+#define FRAMERATE (1000 / 30)
+#define SAMPLECOUNT SAMPLERATE / FRAMERATE
+#define BYTESPERSAMPLE sizeof(uint16_t)
+
+static uint32_t switch_audio_data_size(void)
+{
+ return (SAMPLECOUNT * CHANNELCOUNT * BYTESPERSAMPLE);
+}
+
+static size_t switch_audio_buffer_size(void *data)
+{
+ (void)data;
+ return (switch_audio_data_size() + 0xfff) & ~0xfff;
+}
+
+static ssize_t switch_audio_write(void *data, const void *buf, size_t size)
+{
+ size_t to_write = size;
+ switch_audio_t *swa = (switch_audio_t *)data;
+
+ if (!swa)
+ {
+ return -1;
+ }
+
+ if (!swa->current_buffer)
+ {
+ uint32_t num;
+ if (R_FAILED(audoutGetReleasedAudioOutBuffer(&swa->current_buffer, &num)))
+ return -1;
+
+ if (num < 1)
+ {
+ swa->current_buffer = NULL;
+
+ if (swa->blocking)
+ {
+ /* No buffer, blocking... */
+
+ while (swa->current_buffer == NULL)
+ {
+ num = 0;
+ if (R_FAILED(audoutWaitPlayFinish(&swa->current_buffer, &num, U64_MAX)))
+ {
+#if 0
+ if (task_queue_find(&switch_tasks_finder_data))
+ task_queue_check();
+#endif
+ }
+ }
+ }
+ else
+ return 0;
+ }
+
+ swa->current_buffer->data_size = 0;
+ }
+
+ if (to_write > switch_audio_buffer_size(NULL) - swa->current_buffer->data_size)
+ to_write = switch_audio_buffer_size(NULL) - swa->current_buffer->data_size;
+
+ memcpy(((uint8_t *)swa->current_buffer->buffer) + swa->current_buffer->data_size, buf, to_write);
+ swa->current_buffer->data_size += to_write;
+ swa->current_buffer->buffer_size = switch_audio_buffer_size(NULL);
+
+ if (swa->current_buffer->data_size > (48000 * swa->latency) / 1000)
+ {
+ Result r = audoutAppendAudioOutBuffer(swa->current_buffer);
+ if (R_FAILED(r))
+ return -1;
+ swa->current_buffer = NULL;
+ }
+
+ swa->last_append = svcGetSystemTick();
+
+ return to_write;
+}
+
+static bool switch_audio_stop(void *data)
+{
+ return true;
+
+ switch_audio_t *swa = (switch_audio_t *)data;
+ if (!swa)
+ return false;
+
+ if (!swa->is_paused)
+ {
+ Result rc = audoutStopAudioOut();
+ if (R_FAILED(rc))
+ return false;
+ }
+
+ swa->is_paused = true;
+ return true;
+}
+
+static bool switch_audio_start(void *data, bool is_shutdown)
+{
+ return true;
+
+ switch_audio_t *swa = (switch_audio_t *)data;
+ if (!swa)
+ return false;
+
+ if (swa->is_paused)
+ {
+ Result rc = audoutStartAudioOut();
+ if (R_FAILED(rc))
+ return false;
+ }
+
+ swa->is_paused = false;
+ return true;
+}
+
+static bool switch_audio_alive(void *data)
+{
+ switch_audio_t *swa = (switch_audio_t *)data;
+ if (!swa)
+ return false;
+ return !swa->is_paused;
+}
+
+static void switch_audio_free(void *data)
+{
+ switch_audio_t *swa = (switch_audio_t *)data;
+
+ if (swa)
+ {
+ unsigned i;
+ if (!swa->is_paused)
+ audoutStopAudioOut();
+
+ audoutExit();
+
+ for (i = 0; i < 5; i++)
+ free(swa->buffers[i].buffer);
+
+ free(swa);
+ }
+}
+
+static bool switch_audio_use_float(void *data)
+{
+ (void)data;
+ return false; /* force INT16 */
+}
+
+static size_t switch_audio_write_avail(void *data)
+{
+ switch_audio_t *swa = (switch_audio_t *)data;
+
+ if (!swa || !swa->current_buffer)
+ return 0;
+
+ return swa->current_buffer->buffer_size;
+}
+
+static void switch_audio_set_nonblock_state(void *data, bool state)
+{
+ switch_audio_t *swa = (switch_audio_t *)data;
+
+ if (swa)
+ swa->blocking = !state;
+}
+
+static void *switch_audio_init(const char *device,
+ unsigned rate, unsigned latency,
+ unsigned block_frames,
+ unsigned *new_rate)
+{
+ unsigned i;
+ switch_audio_t *swa = (switch_audio_t *)calloc(1, sizeof(*swa));
+ if (!swa)
+ return NULL;
+
+ /* Init Audio Output */
+ Result rc = audoutInitialize();
+ if (R_FAILED(rc))
+ {
+ goto cleanExit;
+ }
+
+ rc = audoutStartAudioOut();
+ if (R_FAILED(rc))
+ goto cleanExit;
+
+ /* Create Buffers */
+ for (i = 0; i < 5; i++)
+ {
+ swa->buffers[i].next = NULL; /* Unused */
+ swa->buffers[i].buffer = memalign(0x1000, switch_audio_buffer_size(NULL));
+ swa->buffers[i].buffer_size = switch_audio_buffer_size(NULL);
+ swa->buffers[i].data_size = switch_audio_data_size();
+ swa->buffers[i].data_offset = 0;
+
+ memset(swa->buffers[i].buffer, 0, switch_audio_buffer_size(NULL));
+
+ audoutAppendAudioOutBuffer(&swa->buffers[i]);
+ }
+
+ /* Set audio rate */
+ *new_rate = audoutGetSampleRate();
+
+ swa->is_paused = false;
+ swa->current_buffer = NULL;
+ swa->latency = latency;
+ swa->last_append = svcGetSystemTick();
+ swa->blocking = block_frames;
+
+ RARCH_LOG("[Audio]: Audio initialized\n");
+
+ return swa;
+
+cleanExit:;
+
+ if (swa)
+ free(swa);
+
+ RARCH_LOG("[Audio]: Something failed in Audio Init!\n");
+
+ return NULL;
+}
+
+audio_driver_t audio_switch = {
+ switch_audio_init,
+ switch_audio_write,
+ switch_audio_stop,
+ switch_audio_start,
+ switch_audio_alive,
+ switch_audio_set_nonblock_state,
+ switch_audio_free,
+ switch_audio_use_float,
+ "switch",
+ NULL, /* device_list_new */
+ NULL, /* device_list_free */
+ switch_audio_write_avail,
+ switch_audio_buffer_size, /* buffer_size */
+};
diff --git a/audio/drivers/switch_nx_thread_audio.c b/audio/drivers/switch_nx_thread_audio.c
new file mode 100644
index 0000000000..2b72b318de
--- /dev/null
+++ b/audio/drivers/switch_nx_thread_audio.c
@@ -0,0 +1,355 @@
+/* RetroArch - A frontend for libretro.
+ *
+ * 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 .
+ */
+
+#include
+#include
+#include
+#include
+#include
+
+#include
+
+#include
+#include "../audio_driver.h"
+#include "../../verbosity.h"
+
+#include "../../tasks/tasks_internal.h"
+
+#define THREAD_STACK_SIZE (1024 * 8)
+
+#define AUDIO_THREAD_CPU 2
+
+#define CHANNELCOUNT 2
+#define BYTESPERSAMPLE sizeof(uint16_t)
+#define SAMPLE_SIZE (CHANNELCOUNT * BYTESPERSAMPLE)
+
+#define AUDIO_BUFFER_COUNT 2
+
+static inline void lockMutex(Mutex* mtx)
+{
+ mutexLock(mtx);
+}
+
+typedef struct
+{
+ fifo_buffer_t* fifo;
+ Mutex fifoLock;
+ CondVar cond;
+ Mutex condLock;
+
+ size_t fifoSize;
+
+ volatile bool running;
+ bool nonblocking;
+ bool is_paused;
+
+ AudioOutBuffer buffer[AUDIO_BUFFER_COUNT];
+ Thread thread;
+
+ unsigned latency;
+ uint32_t sampleRate;
+} switch_thread_audio_t;
+
+static void mainLoop(void* data)
+{
+ switch_thread_audio_t* swa = (switch_thread_audio_t*)data;
+
+ if (!swa)
+ return;
+
+ RARCH_LOG("[Audio]: start mainLoop cpu %u tid %u\n", svcGetCurrentProcessorNumber(), swa->thread.handle);
+
+ for (int i = 0; i < AUDIO_BUFFER_COUNT; i++)
+ {
+ swa->buffer[i].next = NULL; /* Unused */
+ swa->buffer[i].buffer_size = swa->fifoSize;
+ swa->buffer[i].buffer = memalign(0x1000, swa->buffer[i].buffer_size);
+ swa->buffer[i].data_size = swa->buffer[i].buffer_size;
+ swa->buffer[i].data_offset = 0;
+
+ memset(swa->buffer[i].buffer, 0, swa->buffer[i].buffer_size);
+ audoutAppendAudioOutBuffer(&swa->buffer[i]);
+ }
+
+ AudioOutBuffer* released_out_buffer = NULL;
+ u32 released_out_count;
+ Result rc;
+
+ while (swa->running)
+ {
+ if (!released_out_buffer)
+ {
+ rc = audoutWaitPlayFinish(&released_out_buffer, &released_out_count, U64_MAX);
+ if (R_FAILED(rc))
+ {
+ swa->running = false;
+ RARCH_LOG("[Audio]: audoutGetReleasedAudioOutBuffer failed: %d\n", (int)rc);
+ break;
+ }
+ released_out_buffer->data_size = 0;
+ }
+
+ size_t bufAvail = released_out_buffer->buffer_size - released_out_buffer->data_size;
+
+ lockMutex(&swa->fifoLock);
+
+ size_t avail = fifo_read_avail(swa->fifo);
+ size_t to_write = MIN(avail, bufAvail);
+ if (to_write > 0)
+ fifo_read(swa->fifo, ((u8*)released_out_buffer->buffer) + released_out_buffer->data_size, to_write);
+
+ mutexUnlock(&swa->fifoLock);
+ condvarWakeAll(&swa->cond);
+
+ released_out_buffer->data_size += to_write;
+ if (released_out_buffer->data_size >= released_out_buffer->buffer_size / 2)
+ {
+ rc = audoutAppendAudioOutBuffer(released_out_buffer);
+ if (R_FAILED(rc))
+ {
+ RARCH_LOG("[Audio]: audoutAppendAudioOutBuffer failed: %d\n", (int)rc);
+ }
+ released_out_buffer = NULL;
+ }
+ else
+ svcSleepThread(16000000); /* 16ms */
+ }
+}
+
+static void *switch_thread_audio_init(const char *device, unsigned rate, unsigned latency, unsigned block_frames, unsigned *new_rate)
+{
+ (void)device;
+
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)calloc(1, sizeof(switch_thread_audio_t));
+
+ if (!swa)
+ return NULL;
+
+ swa->running = true;
+ swa->nonblocking = true;
+ swa->is_paused = true;
+ swa->latency = MAX(latency, 8);
+
+ Result rc = audoutInitialize();
+ if (R_FAILED(rc))
+ {
+ RARCH_LOG("[Audio]: audio init failed %d\n", (int)rc);
+ return NULL;
+ }
+
+ rc = audoutStartAudioOut();
+ if (R_FAILED(rc))
+ {
+ RARCH_LOG("[Audio]: audio start init failed: %d\n", (int)rc);
+ return NULL;
+ }
+
+ swa->sampleRate = audoutGetSampleRate();
+ *new_rate = swa->sampleRate;
+
+ mutexInit(&swa->fifoLock);
+ swa->fifoSize = (swa->sampleRate * SAMPLE_SIZE * swa->latency) / 1000;
+ swa->fifo = fifo_new(swa->fifoSize);
+
+ condvarInit(&swa->cond, &swa->condLock);
+
+ RARCH_LOG("[Audio]: switch_thread_audio_init device %s requested rate %hu rate %hu latency %hu block_frames %hu fifoSize %lu\n",
+ device, rate, swa->sampleRate, swa->latency, block_frames, swa->fifoSize);
+
+ u32 prio;
+ svcGetThreadPriority(&prio, CUR_THREAD_HANDLE);
+ rc = threadCreate(&swa->thread, &mainLoop, (void*)swa, THREAD_STACK_SIZE, prio + 1, AUDIO_THREAD_CPU);
+
+ if (R_FAILED(rc))
+ {
+ RARCH_LOG("[Audio]: thread creation failed create %u\n", swa->thread.handle);
+ swa->running = false;
+ return NULL;
+ }
+
+ if (R_FAILED(threadStart(&swa->thread)))
+ {
+ RARCH_LOG("[Audio]: thread creation failed start %u\n", swa->thread.handle);
+ threadClose(&swa->thread);
+ swa->running = false;
+ return NULL;
+ }
+
+ return swa;
+}
+
+static bool switch_thread_audio_start(void *data, bool is_shutdown)
+{
+ /* RARCH_LOG("[Audio]: switch_thread_audio_start\n"); */
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)data;
+
+ if (!swa)
+ return false;
+
+ swa->is_paused = false;
+ return true;
+}
+
+static bool switch_thread_audio_stop(void *data)
+{
+ switch_thread_audio_t* swa = (switch_thread_audio_t*)data;
+
+ if (!swa)
+ return false;
+
+ swa->is_paused = true;
+ return true;
+}
+
+static void switch_thread_audio_free(void *data)
+{
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)data;
+
+ if (!swa)
+ return;
+
+ if (swa->running)
+ {
+ swa->running = false;
+ threadWaitForExit(&swa->thread);
+ threadClose(&swa->thread);
+ }
+
+ audoutStopAudioOut();
+ audoutExit();
+
+ if (swa->fifo)
+ {
+ fifo_free(swa->fifo);
+ swa->fifo = NULL;
+ }
+
+ for (int i = 0; i < AUDIO_BUFFER_COUNT; i++)
+ free(swa->buffer[i].buffer);
+
+ free(swa);
+ swa = NULL;
+}
+
+static ssize_t switch_thread_audio_write(void *data, const void *buf, size_t size)
+{
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)data;
+
+ if (!swa || !swa->running)
+ return 0;
+
+ size_t avail;
+ size_t written;
+
+ if (swa->nonblocking)
+ {
+ lockMutex(&swa->fifoLock);
+ avail = fifo_write_avail(swa->fifo);
+ written = MIN(avail, size);
+ if (written > 0)
+ {
+ fifo_write(swa->fifo, buf, written);
+ }
+ mutexUnlock(&swa->fifoLock);
+ }
+ else
+ {
+ written = 0;
+ while (written < size && swa->running)
+ {
+ lockMutex(&swa->fifoLock);
+ avail = fifo_write_avail(swa->fifo);
+ if (avail == 0)
+ {
+ mutexUnlock(&swa->fifoLock);
+ lockMutex(&swa->condLock);
+ if (swa->running)
+ condvarWait(&swa->cond);
+ mutexUnlock(&swa->condLock);
+ }
+ else
+ {
+ size_t write_amt = MIN(size - written, avail);
+ fifo_write(swa->fifo, (const char*)buf + written, write_amt);
+ mutexUnlock(&swa->fifoLock);
+ written += write_amt;
+ }
+ }
+ }
+
+ return written;
+}
+
+static bool switch_thread_audio_alive(void *data)
+{
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)data;
+
+ if (!swa)
+ return false;
+
+ return !swa->is_paused;
+}
+
+static void switch_thread_audio_set_nonblock_state(void *data, bool state)
+{
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)data;
+
+ if (swa)
+ swa->nonblocking = state;
+}
+
+static bool switch_thread_audio_use_float(void *data)
+{
+ (void)data;
+ return false;
+}
+
+static size_t switch_thread_audio_write_avail(void *data)
+{
+ switch_thread_audio_t* swa = (switch_thread_audio_t*)data;
+
+ lockMutex(&swa->fifoLock);
+ size_t val = fifo_write_avail(swa->fifo);
+ mutexUnlock(&swa->fifoLock);
+
+ return val;
+}
+
+size_t switch_thread_audio_buffer_size(void *data)
+{
+ switch_thread_audio_t *swa = (switch_thread_audio_t *)data;
+
+ if (!swa)
+ return 0;
+
+ return swa->fifoSize;
+}
+
+audio_driver_t audio_switch_thread = {
+ switch_thread_audio_init,
+ switch_thread_audio_write,
+ switch_thread_audio_stop,
+ switch_thread_audio_start,
+ switch_thread_audio_alive,
+ switch_thread_audio_set_nonblock_state,
+ switch_thread_audio_free,
+ switch_thread_audio_use_float,
+ "switch_thread",
+ NULL, /* device_list_new */
+ NULL, /* device_list_free */
+ switch_thread_audio_write_avail,
+ switch_thread_audio_buffer_size
+};
+
+/* vim: set ts=6 sw=6 sts=6: */