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tracy/server/TracyView_GpuTimeline.cpp
Bartosz Taudul f428a5b52b
Fix popup of collapsed items near timeline start. 
There are various changes involved into making this work:

1. Zone size (zsz) is no longer clamped to the timeline viewport area.
   This clamping has to be removed to prevent otherwise uncollapsed zones
   from apparently becoming small near the viewport borders. Such a small
   zone would then be collapsed, resulting in unwanted popping.
   Interesingly, only the CPU zones were clamped before. GPU zones were
   not.
2. Iteration over visible zones has to start before the visible timeline
   viewport area. Without this some zones that would be otherwise
   included in the collapsed area (started by a previous zone) may be
   fully visible. This causes child zones to be drawn and produces
   unwanted popping. (At this point threshold for continuing collapsed
   area is greater than threshold for starting it.)
3. Since the iteration now starts before timeline visible area, it may so
   happen that everything found will be in a small slice of timeline that
   is outside the screen. To fix this, the end time of last found item is
   checked against the viewport start time.
   It is always valid to access *(zitend-1), as it is in each case done
   after null set check (it == zitend).

Similar but simpler fix was also applied to per-thread call stack samples.
2023-03-09 00:38:23 +01:00

366 lines
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#include "TracyColor.hpp"
#include "TracyImGui.hpp"
#include "TracyMouse.hpp"
#include "TracyPrint.hpp"
#include "TracyView.hpp"
namespace tracy
{
constexpr float MinVisSize = 3;
bool View::DrawGpu( const GpuCtxData& gpu, double pxns, int& offset, const ImVec2& wpos, bool hover, float yMin, float yMax )
{
const auto w = ImGui::GetContentRegionAvail().x - 1;
const auto ty = ImGui::GetTextLineHeight();
const auto ostep = ty + 1;
const auto nspx = 1.0 / pxns;
auto draw = ImGui::GetWindowDrawList();
const auto dpos = wpos + ImVec2( 0.5f, 0.5f );
ImGui::PushFont( m_smallFont );
const auto sty = ImGui::GetTextLineHeight();
const auto sstep = sty + 1;
ImGui::PopFont();
const auto singleThread = gpu.threadData.size() == 1;
int depth = 0;
for( auto& td : gpu.threadData )
{
auto& tl = td.second.timeline;
assert( !tl.empty() );
if( tl.is_magic() )
{
auto& tlm = *(Vector<GpuEvent>*)&tl;
if( tlm.front().GpuStart() >= 0 )
{
const auto begin = tlm.front().GpuStart();
const auto drift = GpuDrift( &gpu );
if( !singleThread ) offset += sstep;
const auto partDepth = DispatchGpuZoneLevel( tl, hover, pxns, int64_t( nspx ), wpos, offset, 0, gpu.thread, yMin, yMax, begin, drift );
if( partDepth != 0 )
{
if( !singleThread )
{
ImGui::PushFont( m_smallFont );
DrawTextContrast( draw, wpos + ImVec2( ty, offset-1-sstep ), 0xFFFFAAAA, m_worker.GetThreadName( td.first ) );
DrawLine( draw, dpos + ImVec2( 0, offset+sty-sstep ), dpos + ImVec2( w, offset+sty-sstep ), 0x22FFAAAA );
ImGui::PopFont();
}
offset += ostep * partDepth;
depth += partDepth;
}
else if( !singleThread )
{
offset -= sstep;
}
}
}
else
{
if( tl.front()->GpuStart() >= 0 )
{
const auto begin = tl.front()->GpuStart();
const auto drift = GpuDrift( &gpu );
if( !singleThread ) offset += sstep;
const auto partDepth = DispatchGpuZoneLevel( tl, hover, pxns, int64_t( nspx ), wpos, offset, 0, gpu.thread, yMin, yMax, begin, drift );
if( partDepth != 0 )
{
if( !singleThread )
{
ImGui::PushFont( m_smallFont );
DrawTextContrast( draw, wpos + ImVec2( ty, offset-1-sstep ), 0xFFFFAAAA, m_worker.GetThreadName( td.first ) );
DrawLine( draw, dpos + ImVec2( 0, offset+sty-sstep ), dpos + ImVec2( w, offset+sty-sstep ), 0x22FFAAAA );
ImGui::PopFont();
}
offset += ostep * partDepth;
depth += partDepth;
}
else if( !singleThread )
{
offset -= sstep;
}
}
}
}
return depth != 0;
}
int View::DispatchGpuZoneLevel( const Vector<short_ptr<GpuEvent>>& vec, bool hover, double pxns, int64_t nspx, const ImVec2& wpos, int _offset, int depth, uint64_t thread, float yMin, float yMax, int64_t begin, int drift )
{
const auto ty = ImGui::GetTextLineHeight();
const auto ostep = ty + 1;
const auto offset = _offset + ostep * depth;
const auto yPos = wpos.y + offset;
if( yPos + ostep >= yMin && yPos <= yMax )
{
if( vec.is_magic() )
{
return DrawGpuZoneLevel<VectorAdapterDirect<GpuEvent>>( *(Vector<GpuEvent>*)&vec, hover, pxns, nspx, wpos, _offset, depth, thread, yMin, yMax, begin, drift );
}
else
{
return DrawGpuZoneLevel<VectorAdapterPointer<GpuEvent>>( vec, hover, pxns, nspx, wpos, _offset, depth, thread, yMin, yMax, begin, drift );
}
}
else
{
if( vec.is_magic() )
{
return SkipGpuZoneLevel<VectorAdapterDirect<GpuEvent>>( *(Vector<GpuEvent>*)&vec, hover, pxns, nspx, wpos, _offset, depth, thread, yMin, yMax, begin, drift );
}
else
{
return SkipGpuZoneLevel<VectorAdapterPointer<GpuEvent>>( vec, hover, pxns, nspx, wpos, _offset, depth, thread, yMin, yMax, begin, drift );
}
}
}
template<typename Adapter, typename V>
int View::DrawGpuZoneLevel( const V& vec, bool hover, double pxns, int64_t nspx, const ImVec2& wpos, int _offset, int depth, uint64_t thread, float yMin, float yMax, int64_t begin, int drift )
{
const auto delay = m_worker.GetDelay();
const auto resolution = m_worker.GetResolution();
// cast to uint64_t, so that unended zones (end = -1) are still drawn
auto it = std::lower_bound( vec.begin(), vec.end(), std::max<int64_t>( 0, m_vd.zvStart - std::max<int64_t>( delay, 2 * MinVisSize * nspx ) ), [begin, drift] ( const auto& l, const auto& r ) { Adapter a; return (uint64_t)AdjustGpuTime( a(l).GpuEnd(), begin, drift ) < (uint64_t)r; } );
if( it == vec.end() ) return depth;
Adapter a;
const auto zitend = std::lower_bound( it, vec.end(), std::max<int64_t>( 0, m_vd.zvEnd + resolution ), [begin, drift] ( const auto& l, const auto& r ) { Adapter a; return (uint64_t)AdjustGpuTime( a(l).GpuStart(), begin, drift ) < (uint64_t)r; } );
if( it == zitend ) return depth;
if( AdjustGpuTime( a(*(zitend-1)).GpuEnd(), begin, drift ) < m_vd.zvStart ) return depth;
const auto w = ImGui::GetContentRegionAvail().x - 1;
const auto ty = ImGui::GetTextLineHeight();
const auto ostep = ty + 1;
const auto offset = _offset + ostep * depth;
auto draw = ImGui::GetWindowDrawList();
const auto dpos = wpos + ImVec2( 0.5f, 0.5f );
depth++;
int maxdepth = depth;
while( it < zitend )
{
auto& ev = a(*it);
auto end = m_worker.GetZoneEnd( ev );
if( end == std::numeric_limits<int64_t>::max() ) break;
const auto start = AdjustGpuTime( ev.GpuStart(), begin, drift );
end = AdjustGpuTime( end, begin, drift );
const auto zsz = std::max( ( end - start ) * pxns, pxns * 0.5 );
if( zsz < MinVisSize )
{
const auto color = GetZoneColor( ev );
const auto MinVisNs = MinVisSize * nspx;
int num = 0;
const auto px0 = ( start - m_vd.zvStart ) * pxns;
auto px1ns = end - m_vd.zvStart;
auto rend = end;
auto nextTime = end + MinVisNs;
for(;;)
{
const auto prevIt = it;
it = std::lower_bound( it, zitend, std::max<int64_t>( 0, nextTime ), [begin, drift] ( const auto& l, const auto& r ) { Adapter a; return (uint64_t)AdjustGpuTime( a(l).GpuEnd(), begin, drift ) < (uint64_t)r; } );
if( it == prevIt ) ++it;
num += std::distance( prevIt, it );
if( it == zitend ) break;
const auto nend = AdjustGpuTime( m_worker.GetZoneEnd( a(*it) ), begin, drift );
const auto nsnext = nend - m_vd.zvStart;
if( nsnext < 0 || nsnext - px1ns >= MinVisNs * 2 ) break;
px1ns = nsnext;
rend = nend;
nextTime = nend + nspx;
}
const auto px1 = px1ns * pxns;
draw->AddRectFilled( wpos + ImVec2( std::max( px0, -10.0 ), offset ), wpos + ImVec2( std::min( std::max( px1, px0+MinVisSize ), double( w + 10 ) ), offset + ty ), color );
DrawZigZag( draw, wpos + ImVec2( 0, offset + ty/2 ), std::max( px0, -10.0 ), std::min( std::max( px1, px0+MinVisSize ), double( w + 10 ) ), ty/4, DarkenColor( color ) );
if( hover && ImGui::IsMouseHoveringRect( wpos + ImVec2( std::max( px0, -10.0 ), offset ), wpos + ImVec2( std::min( std::max( px1, px0+MinVisSize ), double( w + 10 ) ), offset + ty + 1 ) ) )
{
if( num > 1 )
{
ImGui::BeginTooltip();
TextFocused( "Zones too small to display:", RealToString( num ) );
ImGui::Separator();
TextFocused( "Execution time:", TimeToString( rend - start ) );
ImGui::EndTooltip();
if( IsMouseClicked( 2 ) && rend - start > 0 )
{
ZoomToRange( start, rend );
}
}
else
{
const auto zoneThread = thread != 0 ? thread : m_worker.DecompressThread( ev.Thread() );
ZoneTooltip( ev );
if( IsMouseClicked( 2 ) && rend - start > 0 )
{
ZoomToZone( ev );
}
if( IsMouseClicked( 0 ) )
{
ShowZoneInfo( ev, zoneThread );
}
m_gpuThread = zoneThread;
m_gpuStart = ev.CpuStart();
m_gpuEnd = ev.CpuEnd();
}
}
const auto tmp = RealToString( num );
const auto tsz = ImGui::CalcTextSize( tmp );
if( tsz.x < px1 - px0 )
{
const auto x = px0 + ( px1 - px0 - tsz.x ) / 2;
DrawTextContrast( draw, wpos + ImVec2( x, offset ), 0xFF4488DD, tmp );
}
}
else
{
if( ev.Child() >= 0 )
{
const auto d = DispatchGpuZoneLevel( m_worker.GetGpuChildren( ev.Child() ), hover, pxns, nspx, wpos, _offset, depth, thread, yMin, yMax, begin, drift );
if( d > maxdepth ) maxdepth = d;
}
const char* zoneName = m_worker.GetZoneName( ev );
auto tsz = ImGui::CalcTextSize( zoneName );
const auto pr0 = ( start - m_vd.zvStart ) * pxns;
const auto pr1 = ( end - m_vd.zvStart ) * pxns;
const auto px0 = std::max( pr0, -10.0 );
const auto px1 = std::max( { std::min( pr1, double( w + 10 ) ), px0 + pxns * 0.5, px0 + MinVisSize } );
const auto zoneColor = GetZoneColorData( ev );
draw->AddRectFilled( wpos + ImVec2( px0, offset ), wpos + ImVec2( px1, offset + tsz.y ), zoneColor.color );
if( zoneColor.highlight )
{
if( zoneColor.thickness > 1.f )
{
draw->AddRect( wpos + ImVec2( px0 + 1, offset + 1 ), wpos + ImVec2( px1 - 1, offset + tsz.y - 1 ), zoneColor.accentColor, 0.f, -1, zoneColor.thickness );
}
else
{
draw->AddRect( wpos + ImVec2( px0, offset ), wpos + ImVec2( px1, offset + tsz.y ), zoneColor.accentColor, 0.f, -1, zoneColor.thickness );
}
}
else
{
const auto darkColor = DarkenColor( zoneColor.color );
DrawLine( draw, dpos + ImVec2( px0, offset + tsz.y ), dpos + ImVec2( px0, offset ), dpos + ImVec2( px1-1, offset ), zoneColor.accentColor, zoneColor.thickness );
DrawLine( draw, dpos + ImVec2( px0, offset + tsz.y ), dpos + ImVec2( px1-1, offset + tsz.y ), dpos + ImVec2( px1-1, offset ), darkColor, zoneColor.thickness );
}
if( tsz.x < zsz )
{
const auto x = ( start - m_vd.zvStart ) * pxns + ( ( end - start ) * pxns - tsz.x ) / 2;
if( x < 0 || x > w - tsz.x )
{
ImGui::PushClipRect( wpos + ImVec2( px0, offset ), wpos + ImVec2( px1, offset + tsz.y * 2 ), true );
DrawTextContrast( draw, wpos + ImVec2( std::max( std::max( 0., px0 ), std::min( double( w - tsz.x ), x ) ), offset ), 0xFFFFFFFF, zoneName );
ImGui::PopClipRect();
}
else if( ev.GpuStart() == ev.GpuEnd() )
{
DrawTextContrast( draw, wpos + ImVec2( px0 + ( px1 - px0 - tsz.x ) * 0.5, offset ), 0xFFFFFFFF, zoneName );
}
else
{
DrawTextContrast( draw, wpos + ImVec2( x, offset ), 0xFFFFFFFF, zoneName );
}
}
else
{
ImGui::PushClipRect( wpos + ImVec2( px0, offset ), wpos + ImVec2( px1, offset + tsz.y * 2 ), true );
DrawTextContrast( draw, wpos + ImVec2( ( start - m_vd.zvStart ) * pxns, offset ), 0xFFFFFFFF, zoneName );
ImGui::PopClipRect();
}
if( hover && ImGui::IsMouseHoveringRect( wpos + ImVec2( px0, offset ), wpos + ImVec2( px1, offset + tsz.y + 1 ) ) )
{
const auto zoneThread = thread != 0 ? thread : m_worker.DecompressThread( ev.Thread() );
ZoneTooltip( ev );
if( !m_zoomAnim.active && IsMouseClicked( 2 ) )
{
ZoomToZone( ev );
}
if( IsMouseClicked( 0 ) )
{
ShowZoneInfo( ev, zoneThread );
}
m_gpuThread = zoneThread;
m_gpuStart = ev.CpuStart();
m_gpuEnd = ev.CpuEnd();
}
++it;
}
}
return maxdepth;
}
template<typename Adapter, typename V>
int View::SkipGpuZoneLevel( const V& vec, bool hover, double pxns, int64_t nspx, const ImVec2& wpos, int _offset, int depth, uint64_t thread, float yMin, float yMax, int64_t begin, int drift )
{
const auto delay = m_worker.GetDelay();
const auto resolution = m_worker.GetResolution();
// cast to uint64_t, so that unended zones (end = -1) are still drawn
auto it = std::lower_bound( vec.begin(), vec.end(), std::max<int64_t>( 0, m_vd.zvStart - std::max<int64_t>( delay, 2 * MinVisSize * nspx ) ), [begin, drift] ( const auto& l, const auto& r ) { Adapter a; return (uint64_t)AdjustGpuTime( a(l).GpuEnd(), begin, drift ) < (uint64_t)r; } );
if( it == vec.end() ) return depth;
Adapter a;
const auto zitend = std::lower_bound( it, vec.end(), std::max<int64_t>( 0, m_vd.zvEnd + resolution ), [begin, drift] ( const auto& l, const auto& r ) { Adapter a; return (uint64_t)AdjustGpuTime( a(l).GpuStart(), begin, drift ) < (uint64_t)r; } );
if( it == zitend ) return depth;
if( AdjustGpuTime( a(*(zitend-1)).GpuEnd(), begin, drift ) < m_vd.zvStart ) return depth;
depth++;
int maxdepth = depth;
while( it < zitend )
{
auto& ev = a(*it);
auto end = m_worker.GetZoneEnd( ev );
if( end == std::numeric_limits<int64_t>::max() ) break;
const auto start = AdjustGpuTime( ev.GpuStart(), begin, drift );
end = AdjustGpuTime( end, begin, drift );
const auto zsz = std::max( ( end - start ) * pxns, pxns * 0.5 );
if( zsz < MinVisSize )
{
const auto MinVisNs = MinVisSize * nspx;
auto px1ns = end - m_vd.zvStart;
auto nextTime = end + MinVisNs;
for(;;)
{
const auto prevIt = it;
it = std::lower_bound( it, zitend, nextTime, [begin, drift] ( const auto& l, const auto& r ) { Adapter a; return (uint64_t)AdjustGpuTime( a(l).GpuEnd(), begin, drift ) < (uint64_t)r; } );
if( it == prevIt ) ++it;
if( it == zitend ) break;
const auto nend = AdjustGpuTime( m_worker.GetZoneEnd( a(*it) ), begin, drift );
const auto nsnext = nend - m_vd.zvStart;
if( nsnext - px1ns >= MinVisNs * 2 ) break;
px1ns = nsnext;
nextTime = nend + nspx;
}
}
else
{
if( ev.Child() >= 0 )
{
const auto d = DispatchGpuZoneLevel( m_worker.GetGpuChildren( ev.Child() ), hover, pxns, nspx, wpos, _offset, depth, thread, yMin, yMax, begin, drift );
if( d > maxdepth ) maxdepth = d;
}
++it;
}
}
return maxdepth;
}
}
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