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wine-staging/patches/06-winepulse/0014-winepulse-v18-Latency-and-compilation-improvements.patch

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From 4e4971813a136b9535b912fb95995b5b13dba8bb Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Sat, 8 Feb 2014 16:08:54 +0100
Subject: [PATCH 21/42] winepulse v18: Latency and compilation improvements
Changes since v17:
- Remove clock_pulse interpolation
* Couldn't work, sadly
- Allow 2 * MinimumPeriod for shared buffers
- Fix all compiler warnings when compiling with 64-bits
- Dynamically select low latency mode if less than 2 default periods are request
* This requires the rtkit patch to be useful
---
dlls/winepulse.drv/mmdevdrv.c | 55 +++++++++++++++++--------------------------
1 file changed, 22 insertions(+), 33 deletions(-)
diff --git a/dlls/winepulse.drv/mmdevdrv.c b/dlls/winepulse.drv/mmdevdrv.c
index 6e75674..8e76826 100644
--- a/dlls/winepulse.drv/mmdevdrv.c
+++ b/dlls/winepulse.drv/mmdevdrv.c
@@ -169,7 +169,6 @@ struct ACImpl {
pa_channel_map map;
INT64 clock_lastpos, clock_written;
- pa_usec_t clock_pulse;
AudioSession *session;
AudioSessionWrapper *session_wrapper;
@@ -518,7 +517,6 @@ static void pulse_attr_update(pa_stream *s, void *user) {
static void pulse_wr_callback(pa_stream *s, size_t bytes, void *userdata)
{
ACImpl *This = userdata;
- pa_usec_t time;
UINT32 oldpad = This->pad;
if (bytes < This->bufsize_bytes)
@@ -528,13 +526,8 @@ static void pulse_wr_callback(pa_stream *s, size_t bytes, void *userdata)
assert(oldpad >= This->pad);
- if (0 && This->pad && pa_stream_get_time(This->stream, &time) >= 0)
- This->clock_pulse = time;
- else
- This->clock_pulse = PA_USEC_INVALID;
-
This->clock_written += oldpad - This->pad;
- TRACE("New pad: %u (-%u)\n", This->pad / pa_frame_size(&This->ss), (oldpad - This->pad) / pa_frame_size(&This->ss));
+ TRACE("New pad: %zu (-%zu)\n", This->pad / pa_frame_size(&This->ss), (oldpad - This->pad) / pa_frame_size(&This->ss));
if (This->event)
SetEvent(This->event);
@@ -542,8 +535,6 @@ static void pulse_wr_callback(pa_stream *s, size_t bytes, void *userdata)
static void pulse_underflow_callback(pa_stream *s, void *userdata)
{
- ACImpl *This = userdata;
- This->clock_pulse = PA_USEC_INVALID;
WARN("Underflow\n");
}
@@ -562,12 +553,8 @@ static void pulse_latency_callback(pa_stream *s, void *userdata)
static void pulse_started_callback(pa_stream *s, void *userdata)
{
ACImpl *This = userdata;
- pa_usec_t time;
TRACE("(Re)started playing\n");
- assert(This->clock_pulse == PA_USEC_INVALID);
- if (0 && pa_stream_get_time(This->stream, &time) >= 0)
- This->clock_pulse = time;
if (This->event)
SetEvent(This->event);
}
@@ -578,7 +565,7 @@ static void pulse_rd_loop(ACImpl *This, size_t bytes)
ACPacket *p, *next;
LARGE_INTEGER stamp, freq;
BYTE *dst, *src;
- UINT32 src_len, copy, rem = This->capture_period;
+ size_t src_len, copy, rem = This->capture_period;
if (!(p = (ACPacket*)list_head(&This->packet_free_head))) {
p = (ACPacket*)list_head(&This->packet_filled_head);
if (!p->discont) {
@@ -630,7 +617,7 @@ static void pulse_rd_loop(ACImpl *This, size_t bytes)
static void pulse_rd_drop(ACImpl *This, size_t bytes)
{
while (bytes >= This->capture_period) {
- UINT32 src_len, copy, rem = This->capture_period;
+ size_t src_len, copy, rem = This->capture_period;
while (rem) {
const void *src;
pa_stream_peek(This->stream, &src, &src_len);
@@ -660,7 +647,7 @@ static void pulse_rd_callback(pa_stream *s, size_t bytes, void *userdata)
{
ACImpl *This = userdata;
- TRACE("Readable total: %u, fragsize: %u\n", bytes, pa_stream_get_buffer_attr(s)->fragsize);
+ TRACE("Readable total: %zu, fragsize: %u\n", bytes, pa_stream_get_buffer_attr(s)->fragsize);
assert(bytes >= This->peek_ofs);
bytes -= This->peek_ofs;
if (bytes < This->capture_period)
@@ -815,7 +802,6 @@ HRESULT WINAPI AUDDRV_GetAudioEndpoint(void *key, IMMDevice *dev,
This->IAudioStreamVolume_iface.lpVtbl = &AudioStreamVolume_Vtbl;
This->dataflow = dataflow;
This->parent = dev;
- This->clock_pulse = PA_USEC_INVALID;
for (i = 0; i < PA_CHANNELS_MAX; ++i)
This->vol[i] = 1.f;
IMMDevice_AddRef(This->parent);
@@ -1199,7 +1185,19 @@ static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
goto exit;
if (mode == AUDCLNT_SHAREMODE_SHARED) {
- period = pulse_def_period[This->dataflow == eCapture];
+ REFERENCE_TIME def = pulse_def_period[This->dataflow == eCapture];
+ REFERENCE_TIME min = pulse_min_period[This->dataflow == eCapture];
+
+ /* Switch to low latency mode if below 2 default periods,
+ * which is 20 ms by default, this will increase the amount
+ * of interrupts but allows very low latency. In dsound I
+ * managed to get a total latency of ~8ms, which is well below
+ * default
+ */
+ if (duration < 2 * def)
+ period = min;
+ else
+ period = def;
if (duration < 2 * period)
duration = 2 * period;
}
@@ -1510,7 +1508,6 @@ static HRESULT WINAPI AudioClient_Start(IAudioClient *iface)
pthread_mutex_unlock(&pulse_lock);
return AUDCLNT_E_NOT_STOPPED;
}
- This->clock_pulse = PA_USEC_INVALID;
if (pa_stream_is_corked(This->stream)) {
o = pa_stream_cork(This->stream, 0, pulse_op_cb, &success);
@@ -1566,7 +1563,6 @@ static HRESULT WINAPI AudioClient_Stop(IAudioClient *iface)
}
if (SUCCEEDED(hr)) {
This->started = FALSE;
- This->clock_pulse = PA_USEC_INVALID;
}
pthread_mutex_unlock(&pulse_lock);
return hr;
@@ -1764,7 +1760,8 @@ static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
UINT32 frames, BYTE **data)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
- UINT32 avail, pad, req, bytes = frames * pa_frame_size(&This->ss);
+ size_t avail, req, bytes = frames * pa_frame_size(&This->ss);
+ UINT32 pad;
HRESULT hr = S_OK;
int ret = -1;
@@ -1789,7 +1786,7 @@ static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
avail = This->bufsize_frames - pad;
if (avail < frames || bytes > This->bufsize_bytes) {
pthread_mutex_unlock(&pulse_lock);
- WARN("Wanted to write %u, but only %u available\n", frames, avail);
+ WARN("Wanted to write %u, but only %zu available\n", frames, avail);
return AUDCLNT_E_BUFFER_TOO_LARGE;
}
@@ -1797,7 +1794,7 @@ static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
req = bytes;
ret = pa_stream_begin_write(This->stream, &This->locked_ptr, &req);
if (ret < 0 || req < bytes) {
- FIXME("%p Not using pulse locked data: %i %u/%u %u/%u\n", This, ret, req/pa_frame_size(&This->ss), frames, pad, This->bufsize_frames);
+ FIXME("%p Not using pulse locked data: %i %zu/%u %u/%u\n", This, ret, req/pa_frame_size(&This->ss), frames, pad, This->bufsize_frames);
if (ret >= 0)
pa_stream_cancel_write(This->stream);
*data = This->tmp_buffer;
@@ -1845,7 +1842,7 @@ static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
pa_stream_write(This->stream, This->tmp_buffer, written_bytes, NULL, 0, PA_SEEK_RELATIVE);
This->pad += written_bytes;
This->locked_ptr = NULL;
- TRACE("Released %u, pad %u\n", written_frames, This->pad / pa_frame_size(&This->ss));
+ TRACE("Released %u, pad %zu\n", written_frames, This->pad / pa_frame_size(&This->ss));
assert(This->pad <= This->bufsize_bytes);
pthread_mutex_unlock(&pulse_lock);
return S_OK;
@@ -2053,7 +2050,6 @@ static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
UINT64 *qpctime)
{
ACImpl *This = impl_from_IAudioClock(iface);
- pa_usec_t time;
HRESULT hr;
TRACE("(%p)->(%p, %p)\n", This, pos, qpctime);
@@ -2069,13 +2065,6 @@ static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
}
*pos = This->clock_written;
- if (This->clock_pulse != PA_USEC_INVALID && pa_stream_get_time(This->stream, &time) >= 0) {
- UINT32 delta = pa_usec_to_bytes(time - This->clock_pulse, &This->ss);
- if (delta < This->pad)
- *pos += delta;
- else
- *pos += This->pad;
- }
/* Make time never go backwards */
if (*pos < This->clock_lastpos)
--
1.8.5.2
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