Revert "Possibly correct some cases of clicky playback or corrupt recording..."
This reverts commit 6dca4f7859
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8407ef1e6c
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a0bf2892fa
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@ -245,12 +245,6 @@
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// Easy change of keystroke bindings for menu items
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#define EXPERIMENTAL_EASY_CHANGE_KEY_BINDINGS
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// PRL 17 Mar 2018
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// Hoping to commit to use of this branch before 2.3.0 is out.
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// Don't use our own RingBuffer class, but reuse PortAudio's which includes
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// proper memory fences.
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#define EXPERIMENTAL_REWRITE_RING_BUFFER
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// PRL 1 Jun 2018
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#define EXPERIMENTAL_PUNCH_AND_ROLL
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@ -23,45 +23,12 @@
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#include "RingBuffer.h"
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#include "Experimental.h"
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#undef REWRITE_RING_BUFFER
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// For now enabling the rewrite only for Mac
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#ifdef EXPERIMENTAL_REWRITE_RING_BUFFER
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#define REWRITE_RING_BUFFER
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#elif defined (__APPLE__)
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#define REWRITE_RING_BUFFER
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#endif
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namespace {
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size_t roundUp(size_t n)
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{
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#ifdef REWRITE_RING_BUFFER
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// PaUtilRingBuffer requires a power of 2
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if (n == 0)
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return 1;
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size_t prev = n;
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for (size_t temp = n; temp != 0; prev = temp, temp = ((temp - 1) & temp))
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;
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return prev == n ? prev : prev << 1;
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#else
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return n;
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#endif
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}
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}
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RingBuffer::RingBuffer(sampleFormat format, size_t size)
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: mFormat{ format }
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, mBufferSize{ roundUp( std::max<size_t>(size, 64) ) }
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, mBufferSize{ std::max<size_t>(size, 64) }
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, mBuffer{ mBufferSize, mFormat }
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{
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#ifdef REWRITE_RING_BUFFER
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PaUtil_InitializeRingBuffer(
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&mRingBuffer, SAMPLE_SIZE(format), mBufferSize, mBuffer.ptr() );
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#endif
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}
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RingBuffer::~RingBuffer()
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@ -70,11 +37,7 @@ RingBuffer::~RingBuffer()
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size_t RingBuffer::Len()
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{
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#ifdef REWRITE_RING_BUFFER
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return (mEnd + mBufferSize - mStart) % mBufferSize;
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#else
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assert(false);
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#endif
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}
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//
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@ -83,19 +46,12 @@ size_t RingBuffer::Len()
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size_t RingBuffer::AvailForPut()
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{
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#ifdef REWRITE_RING_BUFFER
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return PaUtil_GetRingBufferWriteAvailable(&mRingBuffer);
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#else
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return std::max<size_t>(mBufferSize - Len(), 4) - 4;
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#endif
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}
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size_t RingBuffer::Put(samplePtr buffer, sampleFormat format,
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size_t samplesToCopy)
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{
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#ifdef REWRITE_RING_BUFFER
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return PaUtil_WriteRingBuffer(&mRingBuffer, buffer, samplesToCopy);
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#else
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samplesToCopy = std::min( samplesToCopy, AvailForPut() );
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auto src = buffer;
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size_t copied = 0;
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@ -117,11 +73,8 @@ size_t RingBuffer::Put(samplePtr buffer, sampleFormat format,
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mEnd = pos;
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return copied;
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#endif
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}
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#if 0
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// not used
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size_t RingBuffer::Clear(sampleFormat format, size_t samplesToClear)
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{
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samplesToClear = std::min( samplesToClear, AvailForPut() );
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@ -142,7 +95,6 @@ size_t RingBuffer::Clear(sampleFormat format, size_t samplesToClear)
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return cleared;
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}
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#endif
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//
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// For the reader only:
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@ -150,19 +102,12 @@ size_t RingBuffer::Clear(sampleFormat format, size_t samplesToClear)
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size_t RingBuffer::AvailForGet()
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{
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#ifdef REWRITE_RING_BUFFER
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return PaUtil_GetRingBufferReadAvailable(&mRingBuffer);
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#else
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return Len();
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#endif
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}
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size_t RingBuffer::Get(samplePtr buffer, sampleFormat format,
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size_t samplesToCopy)
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{
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#ifdef REWRITE_RING_BUFFER
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return PaUtil_ReadRingBuffer(&mRingBuffer, buffer, samplesToCopy);
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#else
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samplesToCopy = std::min( samplesToCopy, Len() );
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auto dest = buffer;
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size_t copied = 0;
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@ -181,17 +126,13 @@ size_t RingBuffer::Get(samplePtr buffer, sampleFormat format,
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}
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return copied;
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#endif
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}
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size_t RingBuffer::Discard(size_t samplesToDiscard)
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{
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#ifdef REWRITE_RING_BUFFER
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PaUtil_AdvanceRingBufferReadIndex(&mRingBuffer, samplesToDiscard);
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#else
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samplesToDiscard = std::min( samplesToDiscard, Len() );
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mStart = (mStart + samplesToDiscard) % mBufferSize;
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#endif
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return samplesToDiscard;
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}
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@ -13,8 +13,6 @@
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#include "SampleFormat.h"
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#include "../lib-src/portaudio-v19/src/common/pa_ringbuffer.h"
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class RingBuffer {
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public:
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RingBuffer(sampleFormat format, size_t size);
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@ -26,7 +24,7 @@ class RingBuffer {
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size_t AvailForPut();
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size_t Put(samplePtr buffer, sampleFormat format, size_t samples);
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// size_t Clear(sampleFormat format, size_t samples);
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size_t Clear(sampleFormat format, size_t samples);
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//
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// For the reader only:
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@ -44,8 +42,6 @@ class RingBuffer {
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size_t mEnd { 0 };
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size_t mBufferSize;
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SampleBuffer mBuffer;
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PaUtilRingBuffer mRingBuffer;
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};
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#endif /* __AUDACITY_RING_BUFFER__ */
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