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Add minimum width for flame graph items to be drawn.

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Bartosz Taudul 2024-10-27 12:53:52 +01:00
parent ceeea7712d
commit ecf3b30baf
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GPG Key ID: B7FE2008B7575DF3
1 changed files with 47 additions and 2 deletions
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49
profiler/src/profiler/TracyView_FlameGraph.cpp
View File

@ -13,6 +13,8 @@
namespace tracy
{
constexpr float MinVisSize = 3;
void View::BuildFlameGraph( const Worker& worker, std::vector<FlameGraphItem>& data, const Vector<short_ptr<ZoneEvent>>& zones )
{
FlameGraphItem* cache;
@ -258,13 +260,54 @@ struct FlameGraphContext
float ostep;
double pxns;
double nspx;
int64_t vStart;
int64_t vEnd;
};
void View::DrawFlameGraphLevel( const std::vector<FlameGraphItem>& data, FlameGraphContext& ctx, int depth, bool samples )
{
for( auto& v : data )
const auto vStart = ctx.vStart;
const auto vEnd = ctx.vEnd;
const auto nspx = ctx.nspx;
const auto pxns = ctx.pxns;
const auto draw = ctx.draw;
const auto ostep = ctx.ostep;
const auto& wpos = ctx.wpos;
const auto MinVisNs = int64_t( round( GetScale() * MinVisSize * nspx ) );
auto it = std::lower_bound( data.begin(), data.end(), vStart, [] ( const auto& l, const auto& r ) { return l.begin + l.time < r; } );
if( it == data.end() ) return;
const auto zitend = std::lower_bound( it, data.end(), vEnd, [] ( const auto& l, const auto& r ) { return l.begin < r; } );
if( it == zitend ) return;
while( it < zitend )
{
DrawFlameGraphItem( v, ctx, depth, samples );
const auto end = it->begin + it->time;
const auto zsz = it->time;
if( zsz < MinVisNs )
{
auto nextTime = end + MinVisNs;
auto next = it + 1;
for(;;)
{
next = std::lower_bound( next, zitend, nextTime, [] ( const auto& l, const auto& r ) { return l.begin + l.time < r; } );
if( next == zitend ) break;
if( next->time >= MinVisNs ) break;
nextTime = next->begin + next->time + MinVisNs;
}
const auto px0 = ( it->begin - vStart ) * pxns;
const auto px1 = ( (next-1)->begin + (next-1)->time - vStart ) * pxns;
draw->AddRectFilled( ImVec2( wpos.x + px0, wpos.y + depth * ostep ), ImVec2( wpos.x + px1, wpos.y + ( depth + 1 ) * ostep ), 0xFF666666 );
DrawZigZag( draw, ImVec2( wpos.x, wpos.y + ( depth + 0.5f ) * ostep ), px0, px1, ctx.ty / 4, 0xFF444444 );
it = next;
}
else
{
DrawFlameGraphItem( *it, ctx, depth, samples );
++it;
}
}
}
@ -737,6 +780,8 @@ void View::DrawFlameGraph()
ctx.ostep = ctx.ty + 1;
ctx.pxns = region.x / zsz;
ctx.nspx = 1.0 / ctx.pxns;
ctx.vStart = 0;
ctx.vEnd = zsz;
ImGui::ItemSize( region );
DrawFlameGraphLevel( m_flameGraphData, ctx, 0, m_flameMode == 1 );