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Rewrite samples folding.

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This commit is contained in:
Bartosz Taudul
2023-03-22 23:36:13 +01:00
parent 83ae9868e2
commit c75b62e3d6
3 changed files with 18 additions and 34 deletions
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43
server/TracyTimelineItemThread.cpp
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@@ -554,47 +554,32 @@ void TimelineItemThread::PreprocessSamples( const TimelineContext& ctx, const Ve
const auto vStart = ctx.vStart;
const auto vEnd = ctx.vEnd;
const auto nspx = ctx.nspx;
const auto pxns = ctx.pxns;
const auto MinVis = 6 * GetScale();
auto it = std::lower_bound( vec.begin(), vec.end(), vStart - 2 * MinVis * nspx, [] ( const auto& l, const auto& r ) { return l.time.Val() < r; } );
const auto MinVis = 3 * GetScale();
const auto MinVisNs = int64_t( round( MinVis * nspx ) );
auto it = std::lower_bound( vec.begin(), vec.end(), vStart - MinVisNs, [] ( const auto& l, const auto& r ) { return l.time.Val() < r; } );
if( it == vec.end() ) return;
const auto itend = std::lower_bound( it, vec.end(), vEnd, [] ( const auto& l, const auto& r ) { return l.time.Val() < r; } );
if( it == itend ) return;
while( it < itend )
{
bool visible = true;
const auto t0 = it->time.Val();
const auto px0 = ( t0 - vStart ) * pxns;
double px1;
auto next = it+1;
uint32_t num = 0;
auto next = it + 1;
if( next != itend )
{
auto px1ns = next->time.Val() - vStart;
px1 = px1ns * pxns;
if( px1 - px0 < MinVis )
const auto t0 = it->time.Val();
auto nextTime = t0 + MinVisNs;
for(;;)
{
const auto MinVisNs = MinVis * nspx;
visible = false;
auto nextTime = t0 + MinVisNs;
for(;;)
{
const auto prev = next;
next = std::lower_bound( next, itend, nextTime, [] ( const auto& l, const auto& r ) { return l.time.Val() < r; } );
if( prev == next ) ++next;
if( next == itend ) break;
const auto nsnext = next->time.Val() - vStart;
if( nsnext - px1ns >= MinVisNs ) break;
px1ns = nsnext;
nextTime = next->time.Val() + nspx;
}
num = next - it;
px1 = px1ns * pxns;
next = std::lower_bound( next, itend, nextTime, [] ( const auto& l, const auto& r ) { return l.time.Val() < r; } );
if( next == itend ) break;
const auto nt = next->time.Val();
if( nt - nextTime >= MinVisNs ) break;
nextTime = nt + MinVisNs;
}
}
m_samplesDraw.emplace_back( SamplesDraw { !visible, uint32_t( it - vec.begin() ), num } );
m_samplesDraw.emplace_back( SamplesDraw{ uint32_t( next - it - 1 ), uint32_t( it - vec.begin() ) } );
it = next;
}
}