winepulse.drv: Buffer data locally when needed.
PulseAudio doesn't make any buffer size guarantees. With some hardware and some configurations, PulseAudio will fail to allocate the full buffer requested by the application. So, we have to store the data within winepulse until there is enough room in the PulseAudio buffer to accept it. Signed-off-by: Andrew Eikum <aeikum@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Andrew Eikum
Alexandre Julliard
parent
92da5e5d73
commit
1245f8335c
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@ -57,7 +57,6 @@
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#include "audiopolicy.h"
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WINE_DEFAULT_DEBUG_CHANNEL(pulse);
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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#define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
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@ -172,12 +171,16 @@ struct ACImpl {
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AUDCLNT_SHAREMODE share;
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HANDLE event;
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UINT32 bufsize_frames, bufsize_bytes, locked, capture_period, pad, started, peek_ofs;
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void *locked_ptr, *tmp_buffer;
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INT32 locked;
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UINT32 bufsize_frames, bufsize_bytes, capture_period, pad, started, peek_ofs, wri_offs_bytes, lcl_offs_bytes;
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UINT32 tmp_buffer_bytes, held_bytes;
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BYTE *local_buffer, *tmp_buffer;
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void *locked_ptr;
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pa_stream *stream;
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pa_sample_spec ss;
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pa_channel_map map;
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pa_buffer_attr attr;
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INT64 clock_lastpos, clock_written;
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@ -635,23 +638,73 @@ static void pulse_attr_update(pa_stream *s, void *user) {
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dump_attr(attr);
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}
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/* Here's the buffer setup:
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*
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* vvvvvvvv sent to HW already
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* vvvvvvvv in Pulse buffer but rewindable
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* [dddddddddddddddd] Pulse buffer
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* [dddddddddddddddd--------] mmdevapi buffer
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* ^^^^^^^^^^^^^^^^ pad
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* ^ lcl_offs_bytes
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* ^^^^^^^^^ held_bytes
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* ^ wri_offs_bytes
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*
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* GetCurrentPadding is pad
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*
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* During pulse_wr_callback, we decrement pad, fill Pulse buffer, and move
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* lcl_offs forward
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*
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* During Stop, we flush the Pulse buffer
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*/
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static void pulse_wr_callback(pa_stream *s, size_t bytes, void *userdata)
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{
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ACImpl *This = userdata;
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UINT32 oldpad = This->pad;
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if (bytes < This->bufsize_bytes)
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This->pad = This->bufsize_bytes - bytes;
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else
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This->pad = 0;
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if(This->local_buffer){
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size_t to_write;
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BYTE *buf = This->local_buffer + This->lcl_offs_bytes;
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if (oldpad == This->pad)
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return;
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if(This->pad > bytes){
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This->clock_written += bytes;
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This->pad -= bytes;
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}else{
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This->clock_written += This->pad;
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This->pad = 0;
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}
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assert(oldpad > This->pad);
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bytes = min(bytes, This->held_bytes);
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This->clock_written += oldpad - This->pad;
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TRACE("New pad: %zu (-%zu)\n", This->pad / pa_frame_size(&This->ss), (oldpad - This->pad) / pa_frame_size(&This->ss));
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if(This->lcl_offs_bytes + bytes > This->bufsize_bytes){
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to_write = This->bufsize_bytes - This->lcl_offs_bytes;
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TRACE("writing small chunk of %u bytes\n", to_write);
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pa_stream_write(This->stream, buf, to_write, NULL, 0, PA_SEEK_RELATIVE);
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This->held_bytes -= to_write;
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to_write = bytes - to_write;
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This->lcl_offs_bytes = 0;
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buf = This->local_buffer;
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}else
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to_write = bytes;
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TRACE("writing main chunk of %u bytes\n", to_write);
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pa_stream_write(This->stream, buf, to_write, NULL, 0, PA_SEEK_RELATIVE);
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This->lcl_offs_bytes += to_write;
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This->lcl_offs_bytes %= This->bufsize_bytes;
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This->held_bytes -= to_write;
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}else{
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if (bytes < This->bufsize_bytes)
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This->pad = This->bufsize_bytes - bytes;
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else
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This->pad = 0;
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if (oldpad == This->pad)
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return;
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assert(oldpad > This->pad);
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This->clock_written += oldpad - This->pad;
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TRACE("New pad: %zu (-%zu)\n", This->pad / pa_frame_size(&This->ss), (oldpad - This->pad) / pa_frame_size(&This->ss));
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}
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if (This->event)
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SetEvent(This->event);
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@ -980,6 +1033,7 @@ static ULONG WINAPI AudioClient_Release(IAudioClient *iface)
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IUnknown_Release(This->marshal);
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IMMDevice_Release(This->parent);
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HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
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HeapFree(GetProcessHeap(), 0, This->local_buffer);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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@ -1339,42 +1393,44 @@ static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
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if (SUCCEEDED(hr)) {
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UINT32 unalign;
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const pa_buffer_attr *attr = pa_stream_get_buffer_attr(This->stream);
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This->attr = *attr;
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/* Update frames according to new size */
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dump_attr(attr);
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if (This->dataflow == eRender) {
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if (attr->tlength < This->bufsize_bytes) {
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const char *latenv = getenv("PULSE_LATENCY_MSEC");
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if (latenv && *latenv)
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ERR_(winediag)("PulseAudio buffer too small (%u < %u) - PULSE_LATENCY_MSEC is %s\n", attr->tlength, This->bufsize_bytes, latenv);
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else
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ERR_(winediag)("PulseAudio buffer too small (%u < %u)\n", attr->tlength, This->bufsize_bytes);
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TRACE("PulseAudio buffer too small (%u < %u), using tmp buffer\n", attr->tlength, This->bufsize_bytes);
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This->local_buffer = HeapAlloc(GetProcessHeap(), 0, This->bufsize_bytes);
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if(!This->local_buffer)
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hr = E_OUTOFMEMORY;
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}
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This->bufsize_bytes = attr->tlength;
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} else {
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UINT32 i, capture_packets;
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This->capture_period = period_bytes = attr->fragsize;
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if ((unalign = This->bufsize_bytes % period_bytes))
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This->bufsize_bytes += period_bytes - unalign;
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}
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This->bufsize_frames = This->bufsize_bytes / pa_frame_size(&This->ss);
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}
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if (SUCCEEDED(hr)) {
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UINT32 i, capture_packets = This->capture_period ? This->bufsize_bytes / This->capture_period : 0;
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This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0, This->bufsize_bytes + capture_packets * sizeof(ACPacket));
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if (!This->tmp_buffer)
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hr = E_OUTOFMEMORY;
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else {
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ACPacket *cur_packet = (ACPacket*)((char*)This->tmp_buffer + This->bufsize_bytes);
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BYTE *data = This->tmp_buffer;
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silence_buffer(This->ss.format, This->tmp_buffer, This->bufsize_bytes);
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list_init(&This->packet_free_head);
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list_init(&This->packet_filled_head);
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for (i = 0; i < capture_packets; ++i, ++cur_packet) {
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list_add_tail(&This->packet_free_head, &cur_packet->entry);
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cur_packet->data = data;
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data += This->capture_period;
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This->bufsize_frames = This->bufsize_bytes / pa_frame_size(&This->ss);
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capture_packets = This->bufsize_bytes / This->capture_period;
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This->local_buffer = HeapAlloc(GetProcessHeap(), 0, This->bufsize_bytes + capture_packets * sizeof(ACPacket));
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if (!This->local_buffer)
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hr = E_OUTOFMEMORY;
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else {
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ACPacket *cur_packet = (ACPacket*)((char*)This->local_buffer + This->bufsize_bytes);
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BYTE *data = This->local_buffer;
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silence_buffer(This->ss.format, This->local_buffer, This->bufsize_bytes);
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list_init(&This->packet_free_head);
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list_init(&This->packet_filled_head);
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for (i = 0; i < capture_packets; ++i, ++cur_packet) {
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list_add_tail(&This->packet_free_head, &cur_packet->entry);
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cur_packet->data = data;
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data += This->capture_period;
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}
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assert(!This->capture_period || This->bufsize_bytes == This->capture_period * capture_packets);
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assert(!capture_packets || data - This->bufsize_bytes == This->local_buffer);
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}
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assert(!This->capture_period || This->bufsize_bytes == This->capture_period * capture_packets);
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assert(!capture_packets || data - This->bufsize_bytes == This->tmp_buffer);
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}
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}
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if (SUCCEEDED(hr))
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@ -1384,8 +1440,9 @@ static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
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exit:
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if (FAILED(hr)) {
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HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
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This->tmp_buffer = NULL;
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if(This->local_buffer)
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HeapFree(GetProcessHeap(), 0, This->local_buffer);
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This->local_buffer = NULL;
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if (This->stream) {
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pa_stream_disconnect(This->stream);
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pa_stream_unref(This->stream);
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@ -1720,6 +1777,7 @@ static HRESULT WINAPI AudioClient_Start(IAudioClient *iface)
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if (!success)
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hr = E_FAIL;
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}
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if (SUCCEEDED(hr)) {
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This->started = TRUE;
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if (This->dataflow == eRender && This->event)
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@ -1803,8 +1861,10 @@ static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
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pa_operation_unref(o);
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}
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}
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if (success || !This->pad)
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if (success || !This->pad){
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This->clock_lastpos = This->clock_written = This->pad = 0;
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This->wri_offs_bytes = This->lcl_offs_bytes = This->held_bytes = 0;
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}
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} else {
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ACPacket *p;
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This->clock_written += This->pad;
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@ -1960,6 +2020,16 @@ static ULONG WINAPI AudioRenderClient_Release(IAudioRenderClient *iface)
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return AudioClient_Release(&This->IAudioClient_iface);
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}
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static void alloc_tmp_buffer(ACImpl *This, UINT32 bytes)
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{
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if(This->tmp_buffer_bytes >= bytes)
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return;
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HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
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This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0, bytes);
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This->tmp_buffer_bytes = bytes;
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}
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static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
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UINT32 frames, BYTE **data)
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{
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@ -1994,21 +2064,51 @@ static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
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return AUDCLNT_E_BUFFER_TOO_LARGE;
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}
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This->locked = frames;
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req = bytes;
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ret = pa_stream_begin_write(This->stream, &This->locked_ptr, &req);
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if (ret < 0 || req < bytes) {
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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);
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if (ret >= 0)
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pa_stream_cancel_write(This->stream);
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*data = This->tmp_buffer;
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This->locked_ptr = NULL;
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} else
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*data = This->locked_ptr;
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if(This->local_buffer){
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if(This->wri_offs_bytes + bytes > This->bufsize_bytes){
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alloc_tmp_buffer(This, bytes);
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*data = This->tmp_buffer;
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This->locked = -frames;
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}else{
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*data = This->local_buffer + This->wri_offs_bytes;
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This->locked = frames;
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}
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}else{
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req = bytes;
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ret = pa_stream_begin_write(This->stream, &This->locked_ptr, &req);
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if (ret < 0 || req < bytes) {
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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);
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if (ret >= 0)
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pa_stream_cancel_write(This->stream);
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alloc_tmp_buffer(This, bytes);
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*data = This->tmp_buffer;
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This->locked_ptr = NULL;
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} else
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*data = This->locked_ptr;
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This->locked = frames;
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}
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silence_buffer(This->ss.format, *data, bytes);
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pthread_mutex_unlock(&pulse_lock);
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return hr;
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}
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static void pulse_wrap_buffer(ACImpl *This, BYTE *buffer, UINT32 written_bytes)
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{
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UINT32 chunk_bytes = This->bufsize_bytes - This->wri_offs_bytes;
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if(written_bytes <= chunk_bytes){
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memcpy(This->local_buffer + This->wri_offs_bytes, buffer, written_bytes);
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}else{
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memcpy(This->local_buffer + This->wri_offs_bytes, buffer, chunk_bytes);
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memcpy(This->local_buffer, buffer + chunk_bytes,
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written_bytes - chunk_bytes);
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}
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}
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static void pulse_free_noop(void *buf)
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{
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}
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@ -2036,18 +2136,68 @@ static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
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return AUDCLNT_E_INVALID_SIZE;
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}
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This->locked = 0;
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if (This->locked_ptr) {
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if (flags & AUDCLNT_BUFFERFLAGS_SILENT)
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silence_buffer(This->ss.format, This->locked_ptr, written_bytes);
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pa_stream_write(This->stream, This->locked_ptr, written_bytes, NULL, 0, PA_SEEK_RELATIVE);
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} else {
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if (flags & AUDCLNT_BUFFERFLAGS_SILENT)
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silence_buffer(This->ss.format, This->tmp_buffer, written_bytes);
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pa_stream_write(This->stream, This->tmp_buffer, written_bytes, pulse_free_noop, 0, PA_SEEK_RELATIVE);
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if(This->local_buffer){
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BYTE *buffer;
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if(This->locked >= 0)
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buffer = This->local_buffer + This->wri_offs_bytes;
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else
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buffer = This->tmp_buffer;
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if(flags & AUDCLNT_BUFFERFLAGS_SILENT)
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silence_buffer(This->ss.format, buffer, written_bytes);
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if(This->locked < 0)
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pulse_wrap_buffer(This, buffer, written_bytes);
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This->wri_offs_bytes += written_bytes;
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This->wri_offs_bytes %= This->bufsize_bytes;
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This->pad += written_bytes;
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This->held_bytes += written_bytes;
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if(This->held_bytes == This->pad){
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int e;
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UINT32 to_write = min(This->attr.tlength, written_bytes);
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/* nothing in PA, so send data immediately */
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TRACE("pre-writing %u bytes\n", to_write);
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e = pa_stream_write(This->stream, buffer, to_write, NULL, 0, PA_SEEK_RELATIVE);
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if(e)
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ERR("pa_stream_write failed: 0x%x\n", e);
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This->lcl_offs_bytes += to_write;
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This->lcl_offs_bytes %= This->bufsize_bytes;
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This->held_bytes -= to_write;
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}
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}else{
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if (This->locked_ptr) {
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if (flags & AUDCLNT_BUFFERFLAGS_SILENT)
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silence_buffer(This->ss.format, This->locked_ptr, written_bytes);
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pa_stream_write(This->stream, This->locked_ptr, written_bytes, NULL, 0, PA_SEEK_RELATIVE);
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} else {
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if (flags & AUDCLNT_BUFFERFLAGS_SILENT)
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silence_buffer(This->ss.format, This->tmp_buffer, written_bytes);
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pa_stream_write(This->stream, This->tmp_buffer, written_bytes, pulse_free_noop, 0, PA_SEEK_RELATIVE);
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}
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This->pad += written_bytes;
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}
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This->pad += written_bytes;
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if (!pa_stream_is_corked(This->stream)) {
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int success;
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pa_operation *o;
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o = pa_stream_trigger(This->stream, pulse_op_cb, &success);
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if (o) {
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while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
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pthread_cond_wait(&pulse_cond, &pulse_lock);
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pa_operation_unref(o);
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}
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}
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This->locked = 0;
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This->locked_ptr = NULL;
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TRACE("Released %u, pad %zu\n", written_frames, This->pad / pa_frame_size(&This->ss));
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assert(This->pad <= This->bufsize_bytes);
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