4e05ee9c5a
Check the speed of wxImage::Scale() using this algorithm too. As expected, it's between normal and high quality when upscaling and exactly the same as high quality when shrinking (because it is actually the algorithm used for shrinking for wxIMAGE_QUALITY_HIGH).
121 lines
3.1 KiB
C++
121 lines
3.1 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: tests/benchmarks/image.cpp
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// Purpose: wxImage benchmarks
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// Author: Vadim Zeitlin
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// Created: 2013-06-30
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// Copyright: (c) 2013 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/image.h"
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#include "bench.h"
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BENCHMARK_FUNC(LoadBMP)
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{
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wxImage image;
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return image.LoadFile("horse.bmp");
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}
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BENCHMARK_FUNC(LoadJPEG)
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{
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static bool s_handlerAdded = false;
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if ( !s_handlerAdded )
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{
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s_handlerAdded = true;
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wxImage::AddHandler(new wxJPEGHandler);
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}
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wxImage image;
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return image.LoadFile("horse.jpg");
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}
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BENCHMARK_FUNC(LoadPNG)
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{
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static bool s_handlerAdded = false;
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if ( !s_handlerAdded )
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{
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s_handlerAdded = true;
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wxImage::AddHandler(new wxPNGHandler);
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}
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wxImage image;
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return image.LoadFile("horse.png");
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}
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#if wxUSE_LIBTIFF
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BENCHMARK_FUNC(LoadTIFF)
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{
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static bool s_handlerAdded = false;
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if ( !s_handlerAdded )
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{
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s_handlerAdded = true;
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wxImage::AddHandler(new wxTIFFHandler);
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}
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wxImage image;
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return image.LoadFile("horse.tif");
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}
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#endif // wxUSE_LIBTIFF
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static const wxImage& GetTestImage()
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{
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static wxImage s_image;
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static bool s_triedToLoad = false;
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if ( !s_triedToLoad )
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{
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s_triedToLoad = true;
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s_image.LoadFile(Bench::GetStringParameter("horse.bmp"));
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}
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return s_image;
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}
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BENCHMARK_FUNC(EnlargeNormal)
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{
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const wxImage& image = GetTestImage();
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const double factor = Bench::GetNumericParameter(150) / 100.;
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return image.Scale(factor*image.GetWidth(), factor*image.GetHeight(),
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wxIMAGE_QUALITY_NORMAL).IsOk();
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}
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BENCHMARK_FUNC(EnlargeBoxAverage)
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{
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const wxImage& image = GetTestImage();
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const double factor = Bench::GetNumericParameter(150) / 100.;
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return image.Scale(factor*image.GetWidth(), factor*image.GetHeight(),
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wxIMAGE_QUALITY_BOX_AVERAGE).IsOk();
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}
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BENCHMARK_FUNC(EnlargeHighQuality)
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{
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const wxImage& image = GetTestImage();
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const double factor = Bench::GetNumericParameter(150) / 100.;
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return image.Scale(factor*image.GetWidth(), factor*image.GetHeight(),
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wxIMAGE_QUALITY_HIGH).IsOk();
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}
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BENCHMARK_FUNC(ShrinkNormal)
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{
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const wxImage& image = GetTestImage();
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const double factor = Bench::GetNumericParameter(50) / 100.;
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return image.Scale(factor*image.GetWidth(), factor*image.GetHeight(),
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wxIMAGE_QUALITY_NORMAL).IsOk();
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}
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BENCHMARK_FUNC(ShrinkBoxAverage)
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{
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const wxImage& image = GetTestImage();
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const double factor = Bench::GetNumericParameter(50) / 100.;
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return image.Scale(factor*image.GetWidth(), factor*image.GetHeight(),
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wxIMAGE_QUALITY_BOX_AVERAGE).IsOk();
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}
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BENCHMARK_FUNC(ShrinkHighQuality)
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{
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const wxImage& image = GetTestImage();
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const double factor = Bench::GetNumericParameter(50) / 100.;
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return image.Scale(factor*image.GetWidth(), factor*image.GetHeight(),
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wxIMAGE_QUALITY_HIGH).IsOk();
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}
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