mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-15 14:59:37 +00:00
467 lines
12 KiB
C
467 lines
12 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
|
|
* Copyright (C) 2011-2012 - Daniel De Matteis
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifdef _XBOX
|
|
#define DSERR_BUFFERLOST MAKE_DSHRESULT(150)
|
|
#define DSERR_INVALIDPARAM E_INVALIDARG
|
|
#define DSERR_PRIOLEVELNEEDED MAKE_DSHRESULT(70)
|
|
|
|
// Send the audio signal (stereo, without attenuation) to all existing speakers
|
|
static DSMIXBINVOLUMEPAIR dsmbvp[8] = {
|
|
{ DSMIXBIN_FRONT_LEFT, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_FRONT_RIGHT, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_FRONT_CENTER, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_FRONT_CENTER, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_BACK_LEFT, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_BACK_RIGHT, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_LOW_FREQUENCY, DSBVOLUME_MAX },
|
|
{ DSMIXBIN_LOW_FREQUENCY, DSBVOLUME_MAX },
|
|
};
|
|
|
|
static DSMIXBINS dsmb;
|
|
#endif
|
|
|
|
#include "../driver.h"
|
|
#include <stdlib.h>
|
|
#include "../boolean.h"
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include <dsound.h>
|
|
#include "../fifo_buffer.h"
|
|
#include "../general.h"
|
|
|
|
typedef struct dsound
|
|
{
|
|
LPDIRECTSOUND ds;
|
|
LPDIRECTSOUNDBUFFER dsb;
|
|
HANDLE event;
|
|
bool nonblock;
|
|
|
|
fifo_buffer_t *buffer;
|
|
CRITICAL_SECTION crit;
|
|
|
|
volatile bool thread_alive;
|
|
HANDLE thread;
|
|
unsigned buffer_size;
|
|
} dsound_t;
|
|
|
|
static inline unsigned write_avail(unsigned read_ptr, unsigned write_ptr, unsigned buffer_size)
|
|
{
|
|
return (read_ptr + buffer_size - write_ptr) % buffer_size;
|
|
}
|
|
|
|
static inline void get_positions(dsound_t *ds, DWORD *read_ptr, DWORD *write_ptr)
|
|
{
|
|
IDirectSoundBuffer_GetCurrentPosition(ds->dsb, read_ptr, write_ptr);
|
|
}
|
|
|
|
#define CHUNK_SIZE 256
|
|
|
|
struct audio_lock
|
|
{
|
|
void *chunk1;
|
|
DWORD size1;
|
|
void *chunk2;
|
|
DWORD size2;
|
|
};
|
|
|
|
static inline bool grab_region(dsound_t *ds, DWORD write_ptr, struct audio_lock *region)
|
|
{
|
|
HRESULT res = IDirectSoundBuffer_Lock(ds->dsb, write_ptr, CHUNK_SIZE, ®ion->chunk1, ®ion->size1, ®ion->chunk2, ®ion->size2, 0);
|
|
if (res == DSERR_BUFFERLOST)
|
|
{
|
|
res = IDirectSoundBuffer_Restore(ds->dsb);
|
|
if (res != DS_OK)
|
|
return false;
|
|
|
|
res = IDirectSoundBuffer_Lock(ds->dsb, write_ptr, CHUNK_SIZE, ®ion->chunk1, ®ion->size1, ®ion->chunk2, ®ion->size2, 0);
|
|
if (res != DS_OK)
|
|
return false;
|
|
}
|
|
|
|
const char *err;
|
|
switch (res)
|
|
{
|
|
case DSERR_BUFFERLOST:
|
|
err = "DSERR_BUFFERLOST";
|
|
break;
|
|
case DSERR_INVALIDCALL:
|
|
err = "DSERR_INVALIDCALL";
|
|
break;
|
|
case DSERR_INVALIDPARAM:
|
|
err = "DSERR_INVALIDPARAM";
|
|
break;
|
|
case DSERR_PRIOLEVELNEEDED:
|
|
err = "DSERR_PRIOLEVELNEEDED";
|
|
break;
|
|
|
|
default:
|
|
err = NULL;
|
|
}
|
|
|
|
if (err)
|
|
{
|
|
RARCH_WARN("[DirectSound error]: %s\n", err);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static inline void release_region(dsound_t *ds, const struct audio_lock *region)
|
|
{
|
|
IDirectSoundBuffer_Unlock(ds->dsb, region->chunk1, region->size1, region->chunk2, region->size2);
|
|
}
|
|
|
|
static DWORD CALLBACK dsound_thread(PVOID data)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL);
|
|
|
|
DWORD write_ptr;
|
|
get_positions(ds, NULL, &write_ptr);
|
|
write_ptr = (write_ptr + ds->buffer_size / 2) % ds->buffer_size;
|
|
|
|
while (ds->thread_alive)
|
|
{
|
|
DWORD read_ptr;
|
|
get_positions(ds, &read_ptr, NULL);
|
|
|
|
DWORD avail = write_avail(read_ptr, write_ptr, ds->buffer_size);
|
|
|
|
EnterCriticalSection(&ds->crit);
|
|
DWORD fifo_avail = fifo_read_avail(ds->buffer);
|
|
LeaveCriticalSection(&ds->crit);
|
|
|
|
// No space to write, or we don't have data in our fifo, but we can wait some time before it underruns ...
|
|
if (avail < CHUNK_SIZE || ((fifo_avail < CHUNK_SIZE) && (avail < ds->buffer_size / 2)))
|
|
{
|
|
Sleep(1);
|
|
// We could opt for using the notification interface,
|
|
// but it is not guaranteed to work, so use high priority sleeping patterns. :(
|
|
}
|
|
else if (fifo_avail < CHUNK_SIZE) // Got space to write, but nothing in FIFO (underrun), fill block with silence.
|
|
{
|
|
struct audio_lock region;
|
|
if (!grab_region(ds, write_ptr, ®ion))
|
|
{
|
|
ds->thread_alive = false;
|
|
SetEvent(ds->event);
|
|
break;
|
|
}
|
|
|
|
memset(region.chunk1, 0, region.size1);
|
|
memset(region.chunk2, 0, region.size2);
|
|
|
|
release_region(ds, ®ion);
|
|
write_ptr = (write_ptr + region.size1 + region.size2) % ds->buffer_size;
|
|
}
|
|
else // All is good. Pull from it and notify FIFO :D
|
|
{
|
|
struct audio_lock region;
|
|
if (!grab_region(ds, write_ptr, ®ion))
|
|
{
|
|
ds->thread_alive = false;
|
|
SetEvent(ds->event);
|
|
break;
|
|
}
|
|
|
|
EnterCriticalSection(&ds->crit);
|
|
if (region.chunk1)
|
|
fifo_read(ds->buffer, region.chunk1, region.size1);
|
|
if (region.chunk2)
|
|
fifo_read(ds->buffer, region.chunk2, region.size2);
|
|
LeaveCriticalSection(&ds->crit);
|
|
|
|
release_region(ds, ®ion);
|
|
write_ptr = (write_ptr + region.size1 + region.size2) % ds->buffer_size;
|
|
|
|
SetEvent(ds->event);
|
|
}
|
|
}
|
|
|
|
ExitThread(0);
|
|
}
|
|
|
|
static void dsound_stop_thread(dsound_t *ds)
|
|
{
|
|
if (ds->thread)
|
|
{
|
|
ds->thread_alive = false;
|
|
WaitForSingleObject(ds->thread, INFINITE);
|
|
CloseHandle(ds->thread);
|
|
ds->thread = NULL;
|
|
}
|
|
}
|
|
|
|
static bool dsound_start_thread(dsound_t *ds)
|
|
{
|
|
if (!ds->thread)
|
|
{
|
|
ds->thread_alive = true;
|
|
ds->thread = CreateThread(NULL, 0, dsound_thread, ds, 0, NULL);
|
|
if (ds->thread == NULL)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void dsound_clear_buffer(dsound_t *ds)
|
|
{
|
|
IDirectSoundBuffer_SetCurrentPosition(ds->dsb, 0);
|
|
void *ptr;
|
|
DWORD size;
|
|
|
|
if (IDirectSoundBuffer_Lock(ds->dsb, 0, 0, &ptr, &size, NULL, NULL, DSBLOCK_ENTIREBUFFER) == DS_OK)
|
|
{
|
|
memset(ptr, 0, size);
|
|
IDirectSoundBuffer_Unlock(ds->dsb, ptr, size, NULL, 0);
|
|
}
|
|
}
|
|
|
|
static void dsound_free(void *data)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
if (ds)
|
|
{
|
|
if (ds->thread)
|
|
{
|
|
ds->thread_alive = false;
|
|
WaitForSingleObject(ds->thread, INFINITE);
|
|
CloseHandle(ds->thread);
|
|
}
|
|
|
|
DeleteCriticalSection(&ds->crit);
|
|
|
|
if (ds->dsb)
|
|
{
|
|
IDirectSoundBuffer_Stop(ds->dsb);
|
|
IDirectSoundBuffer_Release(ds->dsb);
|
|
}
|
|
|
|
if (ds)
|
|
IDirectSound_Release(ds->ds);
|
|
|
|
if (ds->event)
|
|
CloseHandle(ds->event);
|
|
|
|
if (ds->buffer)
|
|
fifo_free(ds->buffer);
|
|
|
|
free(ds);
|
|
}
|
|
}
|
|
|
|
struct dsound_dev
|
|
{
|
|
unsigned device;
|
|
unsigned total_count;
|
|
LPGUID guid;
|
|
};
|
|
|
|
static BOOL CALLBACK enumerate_cb(LPGUID guid, LPCSTR desc, LPCSTR module, LPVOID context)
|
|
{
|
|
struct dsound_dev *dev = (struct dsound_dev*)context;
|
|
RARCH_LOG("\t%u: %s\n", dev->total_count, desc);
|
|
if (dev->device == dev->total_count)
|
|
dev->guid = guid;
|
|
dev->total_count++;
|
|
return TRUE;
|
|
}
|
|
|
|
static void *dsound_init(const char *device, unsigned rate, unsigned latency)
|
|
{
|
|
WAVEFORMATEX wfx = {0};
|
|
DSBUFFERDESC bufdesc = {0};
|
|
struct dsound_dev dev = {0};
|
|
|
|
dsound_t *ds = (dsound_t*)calloc(1, sizeof(*ds));
|
|
if (!ds)
|
|
goto error;
|
|
|
|
InitializeCriticalSection(&ds->crit);
|
|
|
|
if (device)
|
|
dev.device = strtoul(device, NULL, 0);
|
|
|
|
RARCH_LOG("DirectSound devices:\n");
|
|
#ifndef _XBOX
|
|
DirectSoundEnumerate(enumerate_cb, &dev);
|
|
#endif
|
|
|
|
if (DirectSoundCreate(dev.guid, &ds->ds, NULL) != DS_OK)
|
|
goto error;
|
|
|
|
#ifndef _XBOX
|
|
if (IDirectSound_SetCooperativeLevel(ds->ds, GetDesktopWindow(), DSSCL_PRIORITY) != DS_OK)
|
|
goto error;
|
|
#endif
|
|
|
|
wfx.wFormatTag = WAVE_FORMAT_PCM;
|
|
wfx.nChannels = 2;
|
|
wfx.nSamplesPerSec = rate;
|
|
wfx.wBitsPerSample = 16;
|
|
wfx.nBlockAlign = 2 * sizeof(int16_t);
|
|
wfx.nAvgBytesPerSec = rate * 2 * sizeof(int16_t);
|
|
|
|
ds->buffer_size = (latency * wfx.nAvgBytesPerSec) / 1000;
|
|
ds->buffer_size /= CHUNK_SIZE;
|
|
ds->buffer_size *= CHUNK_SIZE;
|
|
if (ds->buffer_size < 4 * CHUNK_SIZE)
|
|
ds->buffer_size = 4 * CHUNK_SIZE;
|
|
|
|
RARCH_LOG("[DirectSound]: Setting buffer size of %u bytes\n", ds->buffer_size);
|
|
RARCH_LOG("[DirectSound]: Latency = %u ms\n", (unsigned)((1000 * ds->buffer_size) / wfx.nAvgBytesPerSec));
|
|
|
|
bufdesc.dwSize = sizeof(DSBUFFERDESC);
|
|
#ifdef _XBOX
|
|
bufdesc.dwFlags = 0;
|
|
#else
|
|
bufdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_GLOBALFOCUS;
|
|
#endif
|
|
bufdesc.dwBufferBytes = ds->buffer_size;
|
|
bufdesc.lpwfxFormat = &wfx;
|
|
|
|
ds->event = CreateEvent(NULL, false, false, NULL);
|
|
if (!ds->event)
|
|
goto error;
|
|
|
|
ds->buffer = fifo_new(4 * 1024);
|
|
if (!ds->buffer)
|
|
goto error;
|
|
|
|
if (IDirectSound_CreateSoundBuffer(ds->ds, &bufdesc, &ds->dsb, 0) != DS_OK)
|
|
goto error;
|
|
|
|
IDirectSoundBuffer_SetVolume(ds->dsb, DSBVOLUME_MAX);
|
|
|
|
#ifdef _XBOX
|
|
if(g_extern.console.sound.volume_level == 1)
|
|
{
|
|
dsmb.dwMixBinCount = 8;
|
|
dsmb.lpMixBinVolumePairs = dsmbvp;
|
|
|
|
IDirectSoundBuffer_SetHeadroom(ds->dsb, DSBHEADROOM_MIN);
|
|
IDirectSoundBuffer_SetMixBins(ds->dsb, &dsmb);
|
|
}
|
|
#endif
|
|
|
|
IDirectSoundBuffer_SetCurrentPosition(ds->dsb, 0);
|
|
|
|
dsound_clear_buffer(ds);
|
|
|
|
if (IDirectSoundBuffer_Play(ds->dsb, 0, 0, DSBPLAY_LOOPING) != DS_OK)
|
|
goto error;
|
|
|
|
if (!dsound_start_thread(ds))
|
|
goto error;
|
|
|
|
return ds;
|
|
|
|
error:
|
|
RARCH_ERR("[DirectSound] Error occured in init.\n");
|
|
dsound_free(ds);
|
|
return NULL;
|
|
}
|
|
|
|
static bool dsound_stop(void *data)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
dsound_stop_thread(ds);
|
|
return IDirectSoundBuffer_Stop(ds->dsb) == DS_OK;
|
|
}
|
|
|
|
static bool dsound_start(void *data)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
dsound_clear_buffer(ds);
|
|
|
|
if (!dsound_start_thread(ds))
|
|
return false;
|
|
|
|
return IDirectSoundBuffer_Play(ds->dsb, 0, 0, DSBPLAY_LOOPING) == DS_OK;
|
|
}
|
|
|
|
static void dsound_set_nonblock_state(void *data, bool state)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
ds->nonblock = state;
|
|
}
|
|
|
|
static ssize_t dsound_write(void *data, const void *buf_, size_t size)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
const uint8_t *buf = (const uint8_t*)buf_;
|
|
|
|
if (!ds->thread_alive)
|
|
return -1;
|
|
|
|
size_t written = 0;
|
|
while (size > 0)
|
|
{
|
|
EnterCriticalSection(&ds->crit);
|
|
size_t avail = fifo_write_avail(ds->buffer);
|
|
if (avail > size)
|
|
avail = size;
|
|
|
|
fifo_write(ds->buffer, buf, avail);
|
|
LeaveCriticalSection(&ds->crit);
|
|
|
|
buf += avail;
|
|
size -= avail;
|
|
written += avail;
|
|
|
|
if (ds->nonblock || !ds->thread_alive)
|
|
break;
|
|
|
|
if (avail == 0)
|
|
WaitForSingleObject(ds->event, INFINITE);
|
|
}
|
|
|
|
return written;
|
|
}
|
|
|
|
static size_t dsound_write_avail(void *data)
|
|
{
|
|
dsound_t *ds = (dsound_t*)data;
|
|
EnterCriticalSection(&ds->crit);
|
|
size_t avail = fifo_write_avail(ds->buffer);
|
|
LeaveCriticalSection(&ds->crit);
|
|
return avail;
|
|
}
|
|
|
|
static size_t dsound_buffer_size(void *data)
|
|
{
|
|
return 4 * 1024;
|
|
}
|
|
|
|
const audio_driver_t audio_dsound = {
|
|
dsound_init,
|
|
dsound_write,
|
|
dsound_stop,
|
|
dsound_start,
|
|
dsound_set_nonblock_state,
|
|
dsound_free,
|
|
NULL,
|
|
"dsound",
|
|
dsound_write_avail,
|
|
dsound_buffer_size,
|
|
};
|
|
|