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Changed fillAndPushBuffer to use a retry loop.

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Cobaltergeist 2016-09-24 13:52:41 -07:00 committed by Lukas Dürrenberger
parent 77d19859bc
commit 746bb9c8ca
2 changed files with 28 additions and 22 deletions
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3
include/SFML/Audio/SoundStream.hpp
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@ -282,7 +282,8 @@ private:
enum enum
{ {
BufferCount = 3 ///< Number of audio buffers used by the streaming loop BufferCount = 3, ///< Number of audio buffers used by the streaming loop
BufferRetries = 2 ///< Number of retries (excluding initial try) for onGetData()
}; };
//////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////

47
src/SFML/Audio/SoundStream.cpp
View File

@ -399,37 +399,37 @@ bool SoundStream::fillAndPushBuffer(unsigned int bufferNum, bool immediateLoop)
{ {
bool requestStop = false; bool requestStop = false;
// Acquire audio data // Acquire audio data, also address EOF and error cases if they occur
Chunk data = {NULL, 0}; Chunk data = {NULL, 0};
if (!onGetData(data)) for (Uint32 retryCount = 0; !onGetData(data) && (retryCount < BufferRetries); ++retryCount)
{ {
// Mark the buffer as the last one (so that we know when to reset the playing position) // Mark the buffer as the last one (so that we know when to reset the playing position)
m_endBuffers[bufferNum] = true; m_endBuffers[bufferNum] = true;
// Check if the stream must loop or stop // Check if the stream must loop or stop
if (m_loop) if (!m_loop)
{
// Return to the beginning of the stream source
onSeek(Time::Zero);
// If we previously had no data, try to fill the buffer once again
if (!data.samples || (data.sampleCount == 0))
{
// If immediateLoop is specified, we have to immediately adjust the sample count
if (immediateLoop)
{
// We just tried to begin preloading at EOF: reset the sample count
m_samplesProcessed = 0;
m_endBuffers[bufferNum] = false;
}
return fillAndPushBuffer(bufferNum);
}
}
else
{ {
// Not looping: request stop // Not looping: request stop
requestStop = true; requestStop = true;
break;
} }
// Return to the beginning of the stream source
onSeek(Time::Zero);
// If we got data, break and process it, else try to fill the buffer once again
if (data.samples && data.sampleCount)
break;
// If immediateLoop is specified, we have to immediately adjust the sample count
if (immediateLoop)
{
// We just tried to begin preloading at EOF: reset the sample count
m_samplesProcessed = 0;
m_endBuffers[bufferNum] = false;
}
// We're a looping sound that got no data, so we retry onGetData()
} }
// Fill the buffer if some data was returned // Fill the buffer if some data was returned
@ -444,6 +444,11 @@ bool SoundStream::fillAndPushBuffer(unsigned int bufferNum, bool immediateLoop)
// Push it into the sound queue // Push it into the sound queue
alCheck(alSourceQueueBuffers(m_source, 1, &buffer)); alCheck(alSourceQueueBuffers(m_source, 1, &buffer));
} }
else
{
// If we get here, we most likely ran out of retries
requestStop = true;
}
return requestStop; return requestStop;
} }