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/*=========================================================================
Program: Visualization Toolkit
Module: BenchmarkFreeTypeRendering.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkFreeTypeTools.h"
#include "vtkFreeTypeUtilities.h"
#include "vtkTextRenderer.h"
#include "vtkImageData.h"
#include "vtkNew.h"
#include "vtkStdString.h"
#include "vtkTextProperty.h"
#include <ctime>
#include <cstdio>
#include <algorithm>
//----------------------------------------------------------------------------
int BenchmarkFreeTypeRendering(int , char *[])
{
clock_t startT;
clock_t endT;
double elapsedSecs;
double minSecs;
double maxSecs;
double aveSecs;
vtkFreeTypeTools *ftTools = vtkFreeTypeTools::GetInstance();
vtkFreeTypeUtilities *ftUtils = vtkFreeTypeUtilities::GetInstance();
vtkNew<vtkTextProperty> tprop;
vtkNew<vtkTextRenderer> textRenderer;
vtkStdString str;
for (int i = 0; i < 500; ++i)
{
str += "I'm a test string!\n";
}
elapsedSecs = 0;
minSecs = VTK_DOUBLE_MAX;
maxSecs = 0;
aveSecs = 0;
for (int i = 0; i < 100; ++i)
{
// Set the font to something different to throw off the FT caches.
tprop->SetFontFamily(i % VTK_UNKNOWN_FONT);
tprop->SetFontSize(i % 50 + 10);
tprop->SetBold(i % 2);
tprop->SetItalic((i % 51) % 2);
tprop->SetOrientation(static_cast<double>(i) * (360.0 / 100.0));
// Reset the image data
vtkNew<vtkImageData> image;
// Clock the time needed to render the string.
startT = clock();
ftTools->RenderString(tprop.GetPointer(), str, image.GetPointer());
endT = clock();
double iterSecs = static_cast<double>(endT - startT) /
static_cast<double>(CLOCKS_PER_SEC);
elapsedSecs += iterSecs;
minSecs = std::min(minSecs, iterSecs);
maxSecs = std::max(maxSecs, iterSecs);
}
aveSecs = elapsedSecs / 100.0;
printf("FTTools Total: %9.5f Min: %9.5f Max: %9.5f Ave: %9.5f\n",
elapsedSecs, minSecs, maxSecs, aveSecs);
elapsedSecs = 0;
minSecs = VTK_DOUBLE_MAX;
maxSecs = 0;
aveSecs = 0;
for (int i = 0; i < 100; ++i)
{
// Set the font to something different to throw off the FT face cache.
tprop->SetFontFamily(i % VTK_UNKNOWN_FONT);
tprop->SetFontSize(i % 50 + 10);
tprop->SetBold(i % 2);
tprop->SetItalic((i % 51) % 2);
tprop->SetOrientation(static_cast<double>(i) * (360.0 / 100.0));
// Reset the image data
vtkNew<vtkImageData> image;
// Clock the time needed to render the string.
startT = clock();
textRenderer->RenderString(tprop.GetPointer(), str, image.GetPointer());
endT = clock();
double iterSecs = static_cast<double>(endT - startT) /
static_cast<double>(CLOCKS_PER_SEC);
elapsedSecs += iterSecs;
minSecs = std::min(minSecs, iterSecs);
maxSecs = std::max(maxSecs, iterSecs);
}
aveSecs = elapsedSecs / 100.0;
printf("TextRen Total: %9.5f Min: %9.5f Max: %9.5f Ave: %9.5f\n",
elapsedSecs, minSecs, maxSecs, aveSecs);
elapsedSecs = 0;
minSecs = VTK_DOUBLE_MAX;
maxSecs = 0;
aveSecs = 0;
for (int i = 0; i < 100; ++i)
{
// Set the font to something different to throw off the FT face cache.
tprop->SetFontFamily(i % VTK_UNKNOWN_FONT);
tprop->SetFontSize(i % 50 + 10);
tprop->SetBold(i % 2);
tprop->SetItalic((i % 51) % 2);
tprop->SetOrientation(static_cast<double>(i) * (360.0 / 100.0));
// Reset the image data
vtkNew<vtkImageData> image;
// Clock the time needed to render the string.
startT = clock();
ftUtils->RenderString(tprop.GetPointer(), str, image.GetPointer());
endT = clock();
double iterSecs = static_cast<double>(endT - startT) /
static_cast<double>(CLOCKS_PER_SEC);
elapsedSecs += iterSecs;
minSecs = std::min(minSecs, iterSecs);
maxSecs = std::max(maxSecs, iterSecs);
}
aveSecs = elapsedSecs / 100.0;
printf("FTUtils Total: %9.5f Min: %9.5f Max: %9.5f Ave: %9.5f\n",
elapsedSecs, minSecs, maxSecs, aveSecs);
return EXIT_SUCCESS;
}
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