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(Dsound) Split up dsound_write

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(XAudio) Optimize xa_write_nonblock
This commit is contained in:
twinaphex 2020-01-03 14:19:31 +01:00
parent d567b0ca25
commit 6e6fbc5ad3
2 changed files with 44 additions and 10 deletions
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40
audio/drivers/dsound.c
View File

@ -53,6 +53,10 @@
#pragma comment(lib, "dxguid")
#endif
/* Forward declarations */
static ssize_t dsound_write_nonblock(void *data, const void *buf_, size_t size);
static ssize_t dsound_write(void *data, const void *buf_, size_t size);
typedef struct dsound
{
LPDIRECTSOUND ds;
@ -485,6 +489,40 @@ static void dsound_set_nonblock_state(void *data, bool state)
dsound_t *ds = (dsound_t*)data;
if (ds)
ds->nonblock = state;
if (ds->nonblock)
audio_dsound.write = dsound_write_nonblock;
else
audio_dsound.write = dsound_write;
}
static ssize_t dsound_write_nonblock(void *data, const void *buf_, size_t size)
{
size_t written = 0;
dsound_t *ds = (dsound_t*)data;
const uint8_t *buf = (const uint8_t*)buf_;
if (!ds->thread_alive)
return -1;
if (size > 0)
{
size_t avail;
EnterCriticalSection(&ds->crit);
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;
}
return written;
}
static ssize_t dsound_write(void *data, const void *buf_, size_t size)
@ -512,7 +550,7 @@ static ssize_t dsound_write(void *data, const void *buf_, size_t size)
size -= avail;
written += avail;
if (ds->nonblock || !ds->thread_alive)
if (!ds->thread_alive)
break;
if (avail == 0)

14
audio/drivers/xaudio.c
View File

@ -328,16 +328,12 @@ static ssize_t xa_write_nonblock(void *data, const void *buf, size_t size)
xa_t *xa = (xa_t*)data;
xaudio2_t *handle = xa->xa;
const uint8_t *buffer = (const uint8_t*)buf;
size_t avail = XAUDIO2_WRITE_AVAILABLE(xa->xa);
if (xa->nonblock)
{
size_t avail = XAUDIO2_WRITE_AVAILABLE(xa->xa);
if (avail == 0)
return 0;
if (avail < size)
size = avail;
}
if (avail == 0)
return 0;
if (avail < size)
size = avail;
bytes = size;