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Make AudioIOBufferHelper.h cache friendly.

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Improves performance of project loading substantively.

Signed-off-by: Emily Mabrey <emabrey@tenacityaudio.org>
Helped-by: Alex Disibio <alexdisibio@gmail.com>
This commit is contained in:
Emily Mabrey
2021-07-31 16:51:24 -04:00
parent 8c4278cc64
commit 15c4f546f3
2 changed files with 145 additions and 145 deletions
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27
src/AudioIO.cpp
View File

@@ -3843,10 +3843,9 @@ bool AudioIoCallback::FillOutputBuffers(
return true;
}
// ------ MEMORY ALLOCATION ----------------------
//Real time process section
{
std::unique_ptr<AudioIOBufferHelper> bufHelper = std::make_unique<AudioIOBufferHelper>(numPlaybackChannels, framesPerBuffer);
// ------ End of MEMORY ALLOCATION ---------------
auto& em = RealtimeEffectManager::Get();
em.RealtimeProcessStart();
@@ -3855,8 +3854,7 @@ bool AudioIoCallback::FillOutputBuffers(
int chanCnt = 0;
// Choose a common size to take from all ring buffers
const auto toGet =
std::min<size_t>(framesPerBuffer, GetCommonlyReadyPlayback());
const auto toGet = std::min<size_t>(framesPerBuffer, GetCommonlyReadyPlayback());
// The drop and dropQuickly booleans are so named for historical reasons.
// JKC: The original code attempted to be faster by doing nothing on silenced audio.
@@ -3873,8 +3871,7 @@ bool AudioIoCallback::FillOutputBuffers(
bool drop = false; // Track should become silent.
bool dropQuickly = false; // Track has already been faded to silence.
for (unsigned t = 0; t < numPlaybackTracks; t++)
{
for (unsigned t = 0; t < numPlaybackTracks; t++) {
WaveTrack* vt = mPlaybackTracks[t].get();
bufHelper.get()->chans[chanCnt] = vt;
@@ -3889,8 +3886,7 @@ bool AudioIoCallback::FillOutputBuffers(
bool firstChannel = vt->IsLeader();
bool lastChannel = !nextTrack || nextTrack->IsLeader();
if ( firstChannel )
{
if (firstChannel) {
selected = vt->GetSelected();
// IF mono THEN clear 'the other' channel.
if (lastChannel && (numPlaybackChannels > 1)) {
@@ -3906,14 +3902,11 @@ bool AudioIoCallback::FillOutputBuffers(
decltype(framesPerBuffer) len = 0;
if (dropQuickly)
{
if (dropQuickly) {
len = mPlaybackBuffers[t]->Discard(toGet);
// keep going here.
// we may still need to issue a paComplete.
}
else
{
} else {
len = mPlaybackBuffers[t]->Get((samplePtr)bufHelper.get()->tempBufs[chanCnt],
floatSample,
toGet);
@@ -3963,8 +3956,7 @@ bool AudioIoCallback::FillOutputBuffers(
//
// Each channel in the tracks can output to more than one channel on the device.
// For example mono channels output to both left and right output channels.
if (len > 0) for (int c = 0; c < chanCnt; c++)
{
if (len > 0) for (int c = 0; c < chanCnt; c++) {
vt = bufHelper.get()->chans[c];
if (vt->GetChannelIgnoringPan() == Track::LeftChannel || vt->GetChannelIgnoringPan() == Track::MonoChannel)
@@ -3977,6 +3969,7 @@ bool AudioIoCallback::FillOutputBuffers(
chanCnt = 0;
}
// Poke: If there are no playback tracks, then the earlier check
// about the time indicator being past the end won't happen;
// do it here instead (but not if looping or scrubbing)
@@ -3986,6 +3979,8 @@ bool AudioIoCallback::FillOutputBuffers(
// wxASSERT( maxLen == toGet );
em.RealtimeProcessEnd();
delete bufHelper.release();
}
mLastPlaybackTimeMillis = ::wxGetUTCTimeMillis();
ClampBuffer( outputFloats, framesPerBuffer*numPlaybackChannels );

15
src/AudioIOBufferHelper.h
View File

@@ -23,19 +23,24 @@ class AudioIOBufferHelper
this->chans = safenew WaveTrack * [numPlaybackChannels];
this->tempBufs = safenew float* [numPlaybackChannels];
for (unsigned int c = 0; c < numPlaybackChannels; c++) {
tempBufs[c] = safenew float[framesPerBuffer];
tempBufs[0] = safenew float[(size_t)numPlaybackChannels * framesPerBuffer];
for (unsigned int c = 1; c < numPlaybackChannels; c++) {
tempBufs[c] = tempBufs[c - 1] + framesPerBuffer;
}
}
~AudioIOBufferHelper() {
for (unsigned int c = 0; c < numPlaybackChannels; c++) {
delete[] tempBufs[c];
}
delete[] tempBufs[0];
delete[] tempBufs;
tempBufs = nullptr;
delete[] chans;
chans = nullptr;
}
};