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Code Issues Releases Wiki Activity

Don't calculate logarithms more than once.

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This commit is contained in:
Bartosz Taudul 2018-03-05 13:20:24 +01:00
parent 68f652c40f
commit 3e931432cf
1 changed files with 10 additions and 4 deletions
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14
server/TracyView.cpp
View File

@ -2936,6 +2936,9 @@ void View::DrawFindZone()
if( hover && ImGui::IsMouseHoveringRect( wpos + ImVec2( 2, 2 ), wpos + ImVec2( w-2, Height + round( ty * 1.5 ) ) ) ) if( hover && ImGui::IsMouseHoveringRect( wpos + ImVec2( 2, 2 ), wpos + ImVec2( w-2, Height + round( ty * 1.5 ) ) ) )
{ {
const auto ltmin = log10( tmin );
const auto ltmax = log10( tmax );
auto& io = ImGui::GetIO(); auto& io = ImGui::GetIO();
draw->AddLine( ImVec2( io.MousePos.x, wpos.y ), ImVec2( io.MousePos.x, wpos.y+Height-2 ), 0x33FFFFFF ); draw->AddLine( ImVec2( io.MousePos.x, wpos.y ), ImVec2( io.MousePos.x, wpos.y+Height-2 ), 0x33FFFFFF );
@ -2943,8 +2946,8 @@ void View::DrawFindZone()
int64_t t0, t1; int64_t t0, t1;
if( m_findZone.logTime ) if( m_findZone.logTime )
{ {
t0 = int64_t( pow( 10, log10( tmin ) + bin / numBins * ( log10( tmax ) - log10( tmin ) ) ) ); t0 = int64_t( pow( 10, ltmin + bin / numBins * ( ltmax - ltmin ) ) );
t1 = int64_t( pow( 10, log10( tmin ) + (bin+1) / numBins * ( log10( tmax ) - log10( tmin ) ) ) ); t1 = int64_t( pow( 10, ltmin + (bin+1) / numBins * ( ltmax - ltmin ) ) );
} }
else else
{ {
@ -2996,8 +2999,11 @@ void View::DrawFindZone()
float t0, t1; float t0, t1;
if( m_findZone.logTime ) if( m_findZone.logTime )
{ {
t0 = ( log10( s ) - log10( tmin ) ) / float( log10( tmax ) - log10( tmin ) ) * numBins; const auto ltmin = log10( tmin );
t1 = ( log10( e ) - log10( tmin ) ) / float( log10( tmax ) - log10( tmin ) ) * numBins; const auto ltmax = log10( tmax );
t0 = ( log10( s ) - ltmin ) / float( ltmax - ltmin ) * numBins;
t1 = ( log10( e ) - ltmin ) / float( ltmax - ltmin ) * numBins;
} }
else else
{ {